WO2018082620A1 - 子帧配置方法及装置 - Google Patents

子帧配置方法及装置 Download PDF

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Publication number
WO2018082620A1
WO2018082620A1 PCT/CN2017/109158 CN2017109158W WO2018082620A1 WO 2018082620 A1 WO2018082620 A1 WO 2018082620A1 CN 2017109158 W CN2017109158 W CN 2017109158W WO 2018082620 A1 WO2018082620 A1 WO 2018082620A1
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Prior art keywords
subframe
subframes
type
configuration
basic
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PCT/CN2017/109158
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English (en)
French (fr)
Inventor
杨瑾
黄双红
卢有雄
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中兴通讯股份有限公司
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Priority to EP17867988.2A priority Critical patent/EP3537802B1/en
Priority to US16/347,351 priority patent/US10992527B2/en
Publication of WO2018082620A1 publication Critical patent/WO2018082620A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/161—Decentralised systems, e.g. inter-vehicle communication
    • G08G1/162—Decentralised systems, e.g. inter-vehicle communication event-triggered
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/16—Anti-collision systems
    • G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/50—Service provisioning or reconfiguring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to the field of communications, and in particular to a subframe configuration method and apparatus.
  • FIG. 1 is a schematic diagram of a D2D communication structure in the related art of the present disclosure. As shown in FIG. 1 , a radio link between D2D UEs is called a side link (Sidelink, referred to as SL), and the D2D communication mode is obvious.
  • SL side link
  • the vehicle networking system refers to providing vehicle information through sensors, vehicle terminals, and electronic tags mounted on the vehicle, and adopts various communication technologies to realize V2V (Vehicle to Vehicle), Vehicle to Person V2P (Vehicle to Person), The interconnection between the vehicle and the infrastructure V2I (Vehicle to Infrastructure), and the effective use of information extraction and sharing on the information network platform to effectively control the vehicle and provide comprehensive services.
  • Vehicle networking can realize communication-based vehicle information notification and collision hazard warning.
  • advanced wireless communication technology and next-generation information processing technology real-time information interaction between vehicle, vehicle, and roadside infrastructure can be realized, and each other can be informed.
  • Status including vehicle position, speed, acceleration, driving route
  • learned road environment information collaboratively aware of road hazard conditions, timely providing a variety of collision warning information to prevent road traffic safety accidents, and become the current solution to road traffic safety issues A new idea.
  • the short-distance communication between the vehicle and the vehicle can apply the D2D communication method as a special application of the D2D communication method.
  • the following problem occurs: when the subframes included in the resource pool are configured by repeated mapping of the specified bitmap sequence, the mapping of the bitmap may not match the system subframe in the LTE system.
  • the UE performs D2D/V2V information transmission in a subframe included in the resource pool, the delay is unstable.
  • the embodiment of the present disclosure provides a seed frame configuration method and apparatus, which can solve the problem of unstable delay in information transmission in a subframe included in a resource pool in the related art.
  • a seed frame configuration method including: determining a configuration of a second type of subframe according to a configuration of a first type of subframe and a subframe configuration bitmap sequence of a resource pool, wherein the second The sub-frame is a reserved sub-frame, and the reserved sub-frame does not perform mapping of the bitmap sequence; the sub-frame of the resource pool is performed according to the configuration of the first-type sub-frame and the configuration of the second-type sub-frame. Configure the mapping of the bitmap sequence.
  • a seed frame configuration apparatus including: a determining module, configured to determine a configuration of a second type of subframe according to a configuration of a first type of subframe and a subframe configuration bitmap sequence of a resource pool;
  • the second type of subframe is a reserved subframe, and the reserved subframe does not perform mapping of the bitmap bitmap sequence;
  • the mapping module is configured to be configured according to the first type of subframe and the second The configuration of the class subframe performs mapping of the subframe configuration bitmap sequence of the resource pool.
  • a storage medium is also provided.
  • the storage medium is arranged to store program code for performing the following steps:
  • the configuration of the second type of subframe is determined according to the configuration of the first type of subframe and the subframe configuration bitmap sequence of the resource pool, where the second type of subframe is a reserved subframe,
  • the reserved subframe does not perform the mapping of the bitmap sequence;
  • the mapping of the subframe configuration bitmap sequence of the resource pool is performed according to the configuration of the first type of subframe and the configuration of the second type of subframe, by setting In the second type of subframe, the number of subframes that can be used to map the resource pool subframe sequence is exactly an integer multiple of the bitmap length, and the continuous bitmap mapping indication is obtained, so that the subframe configuration in the resource pool is periodically repeated, which is beneficial to resources.
  • the UE using the subframe in the pool maintains a stable delay and guarantees the continuity of resource scheduling usage.
  • the problem of unstable delay in information transmission in a subframe included in a resource pool in the related art is solved.
  • FIG. 1 is a schematic diagram of a D2D communication structure in the related art of the present disclosure
  • FIG. 2 is a flowchart of a subframe configuration method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a frame structure of an LTE system in the related art of the present disclosure
  • FIG. 4 is a second schematic diagram of a frame structure of an LTE system in the related art of the present disclosure.
  • FIG. 5 is a structural block diagram of a subframe configuration apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of resource pool subframe bitmap mapping in an embodiment of the present disclosure.
  • FIG. 7 is a schematic diagram of resource pool subframe bitmap mapping on a basic subframe in an embodiment of the present disclosure
  • FIG. 8 is a second schematic diagram of mapping a resource pool subframe bitmap on a basic subframe according to an embodiment of the present disclosure
  • Example 9 is a schematic diagram of mapping of Example 2 of the present disclosure.
  • Example 10 is a schematic diagram of mapping of Example 3 of the present disclosure.
  • Example 11 is a schematic diagram of a mapping of Example 4 of the present disclosure.
  • FIG. 2 is a flowchart of a subframe configuration method according to an embodiment of the present disclosure. As shown in FIG. 2, the process includes the following steps. step:
  • Step S202 determining a configuration of a second type of subframe according to a configuration of a first type of subframe and a subframe configuration bitmap sequence of the resource pool, where the second type of subframe is a reserved subframe, as a preferred
  • the reserved subframe does not perform mapping of the bitmap sequence, that is, the second type of subframe may not perform bitmap sequence mapping;
  • Step S204 Perform mapping of a subframe configuration bitmap sequence of the resource pool according to the configuration of the first type of subframe and the configuration of the second type of subframe.
  • the configuration of the second type of subframe is determined according to the configuration of the first type of subframe and the subframe configuration bitmap bitmap sequence in the resource pool; wherein, the first type of subframe refers to not within the system subframe number range The subframe in which the bitmap sequence is mapped; the configuration of the second type of subframe refers to the number and/or position of the second type of subframes in the system subframe number range, and the second type of subframe is set to be used for mapping the resource pool.
  • the number of subframes of the frame sequence is exactly an integer multiple of the length of the bitmap, and the continuous bitmap mapping indication is obtained, so that the subframe configuration in the resource pool is periodically repeated, which is beneficial for the UE using the subframe in the resource pool to maintain a stable delay.
  • the problem of unstable delay in information transmission in a subframe included in a resource pool in the related art is solved.
  • the execution body of the foregoing steps may be a base station, a terminal, such as a D2D terminal, etc., but is not limited thereto.
  • each radio frame is 10 ms and includes 10 subframes.
  • One subframe is 1 ms, and is divided into two slots (time slots) of 0.5 ms.
  • FIG. 3 is one schematic diagram of a frame structure of an LTE system in the related art of the present disclosure, as shown in FIG. 3.
  • the sub-frames in the system are numbered sequentially from zero, and the subframe number range is 1024 radio frames, that is, the system subframe number range is [0, 10239], which includes 10240 subframes, and
  • FIG. 4 is an LTE system frame in the related art of the present disclosure.
  • the second schematic diagram of the structure is shown in Figure 4.
  • the data is directly transmitted between the UEs, and the transmitting end UE can obtain the physical side link control channel (PSCCH) and the physical side link shared channel (PSSCH) of the D2D communication according to the scheduling configuration of the network side.
  • PSCCH physical side link control channel
  • PSSCH physical side link shared channel
  • resources may also compete for selecting resources in a given PSCCH and PSSCH resource pool for D2D communication control and data information transmission.
  • the first type of subframe includes: an edge link SL synchronization subframe, and/or an offset subframe, where the SL synchronization subframe refers to a subframe used to transmit the SL synchronization signal, and the offset
  • the subframe refers to consecutive Ne subframes starting from the subframe with the smallest system subframe number, Ne is the subframe offset indication value, the subframe offset indication value is predefined by the network side or the system, and Ne is a non-negative integer.
  • the second type of subframes are based on the configuration of the first type of subframes. To ensure that the subframe configuration of the resource pool can maintain an integer number of repeated mappings within the system subframe number range, a certain number of subframes need to be reserved. As a reserved subframe, the mapping indication of the resource pool bitmap sequence is not performed on the second type of subframe.
  • the configuration of the second type of subframe refers to the number and/or location of the second type of subframes within the range of system subframe numbers.
  • determining, according to the configuration of the first type of subframes and the subframe configuration bitmap bitmap sequence of the resource pool, the configuration of the second type of subframes includes the following two methods:
  • Nr is equal to the number of basic subframes Ns modulo the length L of the bitmap sequence, and the basic subframe is a system
  • N 0 , Nr are non-negative integers, and L is a positive integer
  • the location of the second type of subframe is determined according to a predefined or network side configured rule.
  • the rule includes one or more of the following:
  • Nr subframes incremented by the subframe sequence number are the second type of subframes, and Nr is the number of the second type of subframes;
  • the consecutive Nr subframes decremented by the subframe number are the second type of subframes
  • consecutive Nr subframes that are incremented or decremented by the subframe sequence number are the second type of subframes from the first designated subframe, where the first designated subframe is predefined by the system or indicated by the network side configuration.
  • the first designated subframe may be a fixed subframe.
  • the basic subframes are sequentially numbered. Starting from the subframe with the smallest subframe number, the consecutive Nr subframes that are incremented by the subframe number are the second type of subframes, and the basic subframe is all the subsystems within the system subframe number range. The remaining subframes after the first type of subframe are removed from the frame;
  • the consecutive Nr subframes that are incremented or decremented by the subframe sequence number are the second type of subframes, wherein the second designated subframe is predefined by the system, or by The network side configuration indication; the second designated subframe may be a fixed subframe.
  • the subframe whose subframe number is a+b*L is used as the second type of subframe, where L is the length of the bitmap sequence;
  • the network side includes at least one of the following: an evolved base station eNB, and a relay station.
  • RN Multi-Core Coordination Entity (MCE), Gateway GW, Mobile Management Entity (MME), Evolved Universal Terrestrial Radio Access Network (Evolved Universal Terrestrial Radio Access Network, referred to as EUTRAN), Operation Administration and Maintenance (OAM) Manager.
  • MCE Multi-Core Coordination Entity
  • MME Mobile Management Entity
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • OAM Operation Administration and Maintenance
  • the first type of subframe may be an edge link synchronization subframe.
  • a seed frame configuration device is further provided, and the device is configured to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 5 is a structural block diagram of a subframe configuration apparatus according to an embodiment of the present disclosure. As shown in FIG. 5, the apparatus includes:
  • a determining module 50 configured to determine, according to the configuration of the first type of subframe and the subframe configuration bitmap bitmap sequence of the resource pool, the configuration of the second type of subframe; wherein the second type of subframe is a reserved subframe, In a preferred embodiment, the reserved subframe does not perform mapping of the bitmap sequence, that is, the second type of subframe may not perform bitmap sequence mapping;
  • the mapping module 52 is configured to perform according to the configuration of the first type of subframe and the configuration of the second type of subframe.
  • the subframe of the resource pool configures the mapping of the bitmap sequence.
  • the first type of subframe includes: an edge link SL synchronization subframe, and/or an offset subframe, where the SL synchronization subframe refers to a subframe used to send the SL synchronization signal, and the offset subframe It refers to consecutive Ne subframes starting from the subframe with the smallest system subframe number, Ne is the subframe offset indication value, the subframe offset indication value is predefined by the network side or the system, and Ne is a non-negative integer.
  • the configuration of the second type of subframe refers to the number and/or location of the second type of subframes within the system subframe number range.
  • the determining module includes: a first determining unit, configured to determine the number Nr of the second type of subframes according to the number N 0 of the first type of subframes and the length L of the bitmap sequence; wherein, Nr is equal to the number of basic subframes Ns modulates the length L of the bitmap sequence, where the basic subframe is the remaining subframe after removing the first type of subframes in all system subframes within the system subframe number range, N 0 , Nr are non-negative integers, and L is A positive integer; a second determining unit configured to determine a location of the second type of subframe according to a predefined or network side configured rule.
  • the rules include one or more of the following:
  • Nr subframes incremented by the subframe sequence number are the second type of subframes, and Nr is the number of the second type of subframes;
  • the consecutive Nr subframes decremented by the subframe number are the second type of subframes
  • consecutive Nr subframes that are incremented or decremented by the subframe sequence number are the second type of subframes from the first designated subframe, where the first designated subframe is predefined by the system or indicated by the network side configuration. ;
  • the basic subframes are sequentially numbered. Starting from the subframe with the smallest subframe number, the consecutive Nr subframes that are incremented by the subframe number are the second type of subframes, and the basic subframe is all the subsystems within the system subframe number range. The remaining subframes after the first type of subframe are removed from the frame;
  • Nr subframes Numbered sequentially in the basic subframe, starting from the second designated subframe, incrementing or decrementing by subframe number
  • the reduced consecutive Nr subframes are the second type of subframes, where the second designated subframe is predefined by the system or indicated by the network side configuration;
  • the subframe whose subframe number is a+b*L is used as the second type of subframe, where L is the length of the bitmap sequence;
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination.
  • the forms are located in different processors.
  • This embodiment is an optional embodiment according to the present disclosure, which is described in detail with reference to an example:
  • the resource pool in the resource pool configuration of the side link Sidelink, includes one or more subframes, and the indication of the subframes included in the resource pool is implemented by a subframe bitmap sequence.
  • SFN System Frame Number
  • an indication of the sequence of the corresponding subframe configuration bitmap is performed. When the bit is "1", it indicates that this subframe is a subframe in the resource pool. When it is "0", it indicates that the subframe is not a subframe in the resource pool.
  • the bitmap sequence of the subframe configuration is repeatedly mapped within the range of the system subframe number to achieve the configuration indication of the subframe in the resource pool.
  • the first type of subframe for Sidelink, such as the synchronization subframe SLSS.
  • Sidelink such as the synchronization subframe SLSS.
  • a plurality of first-type subframes are configured in a range of system subframe numbers, and mapping of further resource pool subframe configuration bitmap sequences cannot be performed on the first type of subframes.
  • the remaining subframes of the first type of subframe are called basic subframes in the system subframe number range, and the basic subframes are sequentially numbered and are on the basic subframe.
  • Map the resource pool configuration bitmap sequence Map the resource pool configuration bitmap sequence.
  • FIG. 7 is a schematic diagram of resource pool subframe bitmap mapping in a basic subframe according to an embodiment of the present disclosure.
  • the subframe with the corresponding indication bit "1" is configured as a subframe in the resource pool, and the bitmap mapping is repeated in the SFN/DFN period. .
  • N 10240.
  • the number of configured first-type subframes is N 0
  • the number of basic subframes is the number of system subframes minus the number of first-type subframes, namely:
  • the length of the resource pool subframe configuration bitmap sequence is L
  • L is a system configurable value, such as 16, 20, 100, etc., so L may not be divisible by N or Ns, that is, the repetition of the bitmap sequence within the system subframe number range. Mapping does not guarantee integer integer mapping on basic subframes.
  • the second type of subframe needs to be set in the basic subframe, which may also be referred to as a reserved subframe, and the configuration of the reserved subframe is configured by the first type.
  • the configuration of the subframe and the subframe configuration bitmap sequence in the resource pool are determined.
  • the configuration of the reserved subframes includes the number and/or location of reserved subframes within the range of system subframe numbers.
  • the number of reserved subframes Nr is determined according to the number N 0 of the first type of subframes and the length L of the bitmap sequence:
  • the location of the reserved subframe is determined according to a predefined or network side configured rule.
  • Specific rules include at least one of the following:
  • Nr subframes incremented by the subframe sequence number are the second type of subframes, and Nr is the number of the second type of subframes;
  • the consecutive Nr subframes decremented by the subframe number are the second type of subframes
  • consecutive Nr subframes that are incremented or decremented by the subframe sequence number are the second type of subframes from the first designated subframe, where the first designated subframe is predefined by the system or indicated by the network side configuration. ;
  • the basic subframes are sequentially numbered. Starting from the subframe with the smallest subframe number, the consecutive Nr subframes that are incremented by the subframe number are the second type of subframes, and the basic subframe is all the subsystems within the system subframe number range. The remaining subframes after the first type of subframe are removed from the frame;
  • Nr subframes that are incremented or decremented by the subframe sequence number are the second type of subframes, wherein the second designated subframe is predefined by the system, or by Network side configuration indication;
  • the subframe whose subframe number is a+b*L is used as the second type of subframe, where L is the length of the bitmap sequence;
  • the network side includes one or more of the following entities: evolved base station (eNB), relay station (RN), cell cooperative entity (MCE), gateway (GW), mobility management device (MME), evolved universal terrestrial wireless An access network (EUTRAN) operation management and maintenance (OAM) manager is described below by taking an eNB as a network side entity as an example.
  • eNB evolved base station
  • RN relay station
  • MCE cell cooperative entity
  • GW gateway
  • MME mobility management device
  • EUTRAN operation management and maintenance
  • OAM operation management and maintenance
  • the second type of subframe that is, the reserved subframe, may be determined by combining the configuration of the first type of subframe and the length of the resource pool subframe configuration bitmap.
  • the number Nr is shown in Table 1.
  • the position determining rule of the system pre-defined reserved subframe is that, from the subframe with the smallest system subframe number, consecutive Nr subframes incremented by the subframe number are the reserved subframe.
  • FIG. 9 is A schematic diagram of mapping of Example 2 of the present disclosure is shown in FIG.
  • the number of subframes that can be used to map the bitmap sequence is exactly an integer multiple of the length of the bitmap, and the continuous bitmap mapping indication is reached, so that the subframe configuration in the resource pool is periodically repeated, which is beneficial for use in the resource pool.
  • the UE of the subframe maintains a stable delay and guarantees the continuity of resource scheduling usage.
  • the position determining rule of the system pre-defined reserved subframe is that, from the subframe with the largest subframe number, the consecutive Nr subframes decremented by the subframe number are the reserved subframe.
  • FIG. 10 is a schematic diagram of mapping of Example 3 of the present disclosure, as shown in FIG.
  • the system predetermines the position determination rule of the reserved subframes, which are sequentially numbered in the basic subframe. a subframe whose frame number is a+b*T is used as the reserved subframe, where
  • Nr reserved subframes are evenly distributed in the basic subframe range, and the subframe interval between adjacent two reserved subframes is T, that is, subframe [#a, #a +T,...,#a+T*(Nr-1)]
  • T subframe [#a, #a +T,...,#a+T*(Nr-1)]
  • FIG. 11 is a schematic diagram of mapping of the fourth embodiment of the present disclosure, as shown in FIG.
  • the reserved subframes are set at equal intervals according to the length of the resource pool subframe bitmap, and the subframe interval between adjacent two reserved subframes is L, that is, the subframe [ #a,#a+L,...,#a+L*(Nr-1)] As the reserved subframe, the mapping of the resource pool subframe bitmap sequence is not performed.
  • Embodiments of the present disclosure also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • S1 Determine, according to the configuration of the first type of subframes and the subframe configuration bitmap bitmap sequence in the resource pool, the configuration of the second type of subframes, where the first type of subframes does not perform the bitmap within the system subframe number range.
  • the subframe of the sequence mapping; the configuration of the second type of subframe refers to the number and/or location within the range of system subframe numbers.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor executes according to the stored program code in the storage medium.
  • the row determines the configuration of the second type of subframe according to the configuration of the first type of subframe and the subframe configuration bitmap bitmap sequence in the resource pool; wherein the first type of subframe refers to not performing the bitmap sequence within the system subframe number range
  • the mapped subframes; the configuration of the second type of subframes refers to the number and/or location within the system subframe number range.
  • modules or steps of the present disclosure described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. As such, the disclosure is not limited to any specific combination of hardware and software.
  • the configuration of the second type of subframe is determined according to the configuration of the first type of subframe and the subframe configuration bitmap sequence of the resource pool, where the second type of subframe is a reserved subframe, and the reserved subframe is not Performing mapping of the bitmap sequence; performing mapping of a subframe configuration bitmap sequence of the resource pool according to the configuration of the first type of subframe and the configuration of the second type of subframe, by setting a second type of subframe,
  • the number of subframes that can be used to map the resource pool subframe sequence is exactly an integer multiple of the length of the bitmap, and the continuous bitmap mapping indication is obtained, so that the subframe configuration in the resource pool is periodically repeated, which is beneficial to using the subframe in the resource pool.
  • the UE maintains a stable delay and guarantees the continuity of resource scheduling usage.
  • the invention solves the problem of information transmission in a subframe included in a resource pool in related art Time delay and other issues.

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Abstract

本公开提供了一种子帧配置方法及装置。该方法包括：根据第一类子帧的配置和资源池的子帧配置位图序列确定第二类子帧的配置，其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述位图序列的映射；根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置序列的映射。通过本公开，解决了相关技术中在资源池包含的子帧中进行信息传输时时延不稳定等问题。

Description

子帧配置方法及装置 技术领域
本公开涉及通信领域，具体而言，涉及一种子帧配置方法及装置。
背景技术
在相关技术中的D2D通信***中，用户设备(User Equipment，简称为UE)之间有业务需要传输时，UE之间的业务数据不经过基站的转发，而是直接由数据源UE通过空中接口传输给目标UE，图1是本公开相关技术中D2D通信结构示意图，如图1所示，D2D UE之间的无线链路称为边链路(Sidelink，简称为SL)，D2D通信模式具有明显区别于传统蜂窝***通信模式的特征，对于能够应用D2D通信方式的近距离通信用户来说，D2D传输不但节省了无线频谱资源，而且降低了核心网的数据传输压力，能够减少***资源占用，增加蜂窝通信***频谱效率，降低终端发射功耗，并在很大程度上节省网络运营成本。车联网***是指通过装载在车辆上的传感器、车载终端及电子标签等设备提供车辆信息，采用各种通信技术实现车与车V2V(Vehicle to Vehicle)、车与人V2P(Vehicle to Person)、车与基础设施V2I(Vehicle to Infrastructure)之间的互连互通，并在信息网络平台上对信息进行提取、共享等有效利用，对车辆进行有效的管控和提供综合服务的***。车联网可以实现基于通信的车辆信息通知及碰撞危险预警，通过利用先进的无线通信技术和新一代信息处理技术，实现车与车、车与路侧基础设施间的实时信息交互，告知彼此目前的状态(包括车辆的位置、速度、加速度、行驶路径)及获知的道路环境信息，协作感知道路危险状况，及时提供多种碰撞预警信息，防止道路交通安全事故的发生，成为当前解决道路交通安全问题的一种新的思路。
近年来随着新的移动通信技术的发展，基于LTE***来解决车联网通信是热点研究之一。其中，车与车之间的近距离通信可以应用D2D通信方式，作为D2D通信方式的一种特殊应用。
但在上述D2D/V2V通信过程中存在以下问题：通过指定的位图(bitmap)序列的重复映射配置资源池中所含的子帧时，bitmap的映射可能与LTE***中的***子帧不匹配，导致UE在资源池包含的子帧中进行D2D/V2V信息传输时，时延不稳定等问题。
针对相关技术中存在的上述问题，目前尚未发现有效的解决方案。
发明内容
本公开实施例提供了一种子帧配置方法及装置，其能够解决相关技术中在资源池包含的子帧中进行信息传输时时延不稳定等问题。
根据本公开的一个实施例，提供了一种子帧配置方法，包括：根据第一类子帧的配置和资源池的子帧配置bitmap序列确定第二类子帧的配置，其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述bitmap序列的映射；根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置bitmap序列的映射。
根据本公开的另一个实施例，提供了一种子帧配置装置，包括：确定模块，设置为根据第一类子帧的配置和资源池的子帧配置bitmap序列确定第二类子帧的配置；其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述位图bitmap序列的映射；映射模块，设置为根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置bitmap序列的映射。
根据本公开的又一个实施例，还提供了一种存储介质。该存储介质设置为存储用于执行以下步骤的程序代码：
根据第一类子帧的配置和资源池的子帧配置bitmap序列确定第二类子帧的配置，其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述bitmap序列的映射；
根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置bitmap序列的映射。
通过本公开部分实施例中的方案，根据第一类子帧的配置和资源池的子帧配置bitmap序列确定第二类子帧的配置，其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述bitmap序列的映射；根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置bitmap序列的映射，通过设置第二类子帧，使可用于映射资源池子帧bitmap序列的子帧数恰好是bitmap长度的整数倍，达到连续的bitmap映射指示，使资源池中的子帧配置周期性重复，有利于在资源池中使用子帧的UE保持稳定的时延，保障资源调度使用的连续性。解决了相关技术中在资源池包含的子帧中进行信息传输时时延不稳定等问题。
附图说明
此处所说明的附图用来提供对本公开的进一步理解，构成本申请的一部分，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。在附图中：
图1是本公开相关技术中D2D通信结构示意图；
图2是根据本公开实施例的子帧配置方法的流程图；
图3是本公开相关技术中LTE***帧结构示意图之一；
图4是本公开相关技术中LTE***帧结构示意图之二；
图5是根据本公开实施例的子帧配置装置的结构框图；
图6是本公开实施例中资源池子帧bitmap映射示意图；
图7是本公开实施例中在基本子帧上进行资源池子帧bitmap映射示意图之一；
图8是本公开实施例中在基本子帧上进行资源池子帧bitmap映射示意图之二；
图9是本公开实例二的映射示意图；
图10是本公开实例三的映射示意图；
图11是本公开实例四的映射示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本公开。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本公开的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
在本实施例中提供了一种运行于图1所示网络架构的子帧配置方法，图2是根据本公开实施例的子帧配置方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202，根据第一类子帧的配置和资源池的子帧配置位图(bitmap)序列确定第二类子帧的配置，其中，第二类子帧是保留子帧，作为一种优选的实施方式，所述保留子帧不进行所述bitmap序列的映射，也就是说，第二类子帧可以不进行bitmap序列映射；
步骤S204，根据第一类子帧的配置和第二类子帧的配置进行资源池的子帧配置bitmap序列的映射。
通过上述步骤，根据第一类子帧的配置和资源池中的子帧配置位图bitmap序列确定第二类子帧的配置；其中，第一类子帧是指在***子帧序号范围内不进行bitmap序列映射的子帧；第二类子帧的配置是指在***子帧序号范围内第二类子帧的数量和/或位置，通过设置第二类子帧，使可用于映射资源池子帧bitmap序列的子帧数恰好是bitmap长度的整数倍，达到连续的bitmap映射指示，使资源池中的子帧配置周期性重复，有利于在资源池中使用子帧的UE保持稳定的时延，保障资源调度使用的连续性。解决了相关技术中在资源池包含的子帧中进行信息传输时时延不稳定等问题。
可选地，上述步骤的执行主体可以为基站、终端，如D2D终端等，但不限于此。
在相关技术中的长期演进***LTE(Long Term Evolution)***中，每个无线帧为10ms，包含10个子帧。1个子帧为1ms，分为0.5ms的2个slot(时隙)，图3是本公开相关技术中LTE***帧结构示意图之一，如图3所示。***中子帧从零开始依次编号，子帧编号范围为1024个无线帧，即***子帧序号范围为[0,10239],共包含10240个子帧，图4是本公开相关技术中LTE***帧结构示意图之二，如图4所示。
在D2D通信***中，UE之间直接进行数据的传输，发送端UE可以按照网络侧的调度配置获得D2D通信的物理边链路控制信道PSCCH(Physical Sidelink Control Channel)和物理边链路共享信道PSSCH(Physical Sidelink Shared Channel)资源，也可以在给定的PSCCH和PSSCH资源池中竞争选择资源进行D2D通信控制及数据信息的发射。
在本实施例中，第一类子帧包括：边链路SL同步子帧，和/或，偏移子帧，其中，SL同步子帧是指用于发送SL同步信号的子帧，偏移子帧是指从***子帧序号最小的子帧开始的连续Ne个子帧，Ne为子帧偏移指示值，子帧偏移指示值由网络侧配置或者***预定义,Ne为非负整数。第二类子帧是指在第一类子帧配置的基础上，为了保障资源池的子帧配置bitmap能够在***子帧序号范围内保持整数次重复映射，而需要保留一定数量的子帧，作为保留子帧，第二类子帧上不进行资源池bitmap序列的映射指示。第二类子帧的配置是指在***子帧序号范围内的第二类子帧的数量和/或位置。
可选的，根据第一类子帧的配置和资源池的子帧配置位图bitmap序列确定第二类子帧的配置包括以下两种方式：
根据第一类子帧的数量N0，以及bitmap序列的长度L确定第二类子帧的数量Nr；其中，Nr等于基本子帧数量Ns对bitmap序列的长度L取模，基本子帧为***子帧序号范围内所有***子帧中去除第一类子帧后的 剩余子帧，N0，Nr为非负整数，L为正整数；
根据预定义的或网络侧配置的规则确定第二类子帧的位置。可选的，规则包括以下一项或多项：
从***子帧中序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为第二类子帧，Nr为第二类子帧的数量；
从***子帧中序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为第二类子帧；
在***子帧中，从第一指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为第二类子帧，其中，第一指定子帧由***预定义或者由网络侧配置指示；第一指定子帧可以是某个固定子帧。
在基本子帧中顺次编号，从基本子帧序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为第二类子帧，基本子帧为***子帧序号范围内所有***子帧中去除第一类子帧后的剩余子帧；
在基本子帧中顺次编号，从基本子帧序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为第二类子帧；
在基本子帧中顺次编号，从第二指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为第二类子帧，其中，第二指定子帧由***预定义，或者由网络侧配置指示；第二指定子帧可以是某个固定子帧。
在基本子帧中顺次编号，子帧序号为a+b*T的子帧作为第二类子帧，其中，T等于Ns除以Nr向下取整，其中，a为非负整数，b＝[0，1,2…,Nr-1]，或者b＝[1,2,3…,Nr]；
在基本子帧中顺次编号，子帧序号为a+b*L的子帧作为第二类子帧,其中，L为bitmap序列的长度；
预定义***子帧序号为Si的子帧作为第二类子帧，其中，i＝[0，1,…,Nr-1]。
在本实施例中，网络侧包括以下至少之一：演进型基站eNB、中继站 RN、小区协作实体MCE(Multicell Coordination Entity，简称为MCE)、网关GW、移动性管理设备(Mobile Management Entity，简称MME)、演进型通用陆地无线接入网(Evolved Universal Terrestrial Radio Access Network，简称为EUTRAN)、操作管理及维护(Operation Administration and Maintenance，简称为OAM)管理器。
可选的，第一类子帧具体可以是边链路同步子帧。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本公开的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本公开各个实施例的方法。
实施例2
在本实施例中还提供了一种子帧配置装置，该装置设置为实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图5是根据本公开实施例的子帧配置装置的结构框图，如图5所示，该装置包括：
确定模块50，确定模块，设置为根据第一类子帧的配置和资源池的子帧配置位图bitmap序列确定第二类子帧的配置；其中，第二类子帧是保留子帧，作为一种优选的实施方式，所述保留子帧不进行所述bitmap序列的映射，也就是说，第二类子帧可以不进行bitmap序列映射；
映射模块52，设置为根据第一类子帧的配置和第二类子帧的配置进行 资源池的子帧配置bitmap序列的映射。
可选的，第一类子帧包括：边链路SL同步子帧，和/或，偏移子帧，其中，SL同步子帧是指用于发送SL同步信号的子帧，偏移子帧是指从***子帧序号最小的子帧开始的连续Ne个子帧，Ne为子帧偏移指示值，子帧偏移指示值由网络侧配置或者***预定义,Ne为非负整数。第二类子帧的配置是指在***子帧序号范围内第二类子帧的数量和/或位置。
可选的，确定模块包括：第一确定单元，设置为根据第一类子帧的数量N0，以及bitmap序列的长度L确定第二类子帧的数量Nr；其中，Nr等于基本子帧数量Ns对bitmap序列的长度L取模，其中，基本子帧为***子帧序号范围内所有***子帧中去除第一类子帧后的剩余子帧，N0，Nr为非负整数，L为正整数；第二确定单元，设置为根据预定义的或网络侧配置的规则确定第二类子帧的位置。
具体的，规则包括以下一项或多项：
从***子帧中序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为第二类子帧，Nr为第二类子帧的数量；
从***子帧中序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为第二类子帧；
在***子帧中，从第一指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为第二类子帧，其中，第一指定子帧由***预定义或者由网络侧配置指示；
在基本子帧中顺次编号，从基本子帧序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为第二类子帧，基本子帧为***子帧序号范围内所有***子帧中去除第一类子帧后的剩余子帧；
在基本子帧中顺次编号，从基本子帧序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为第二类子帧；
在基本子帧中顺次编号，从第二指定子帧开始，按子帧序号递增或递 减的连续Nr个子帧为第二类子帧，其中，第二指定子帧由***预定义，或者由网络侧配置指示；
在基本子帧中顺次编号，子帧序号为a+b*T的子帧作为第二类子帧，其中，T等于Ns除以Nr向下取整，其中，a为非负整数，b＝[0，1,2…,Nr-1]，或者b＝[1,2,3…,Nr]；
在基本子帧中顺次编号，子帧序号为a+b*L的子帧作为第二类子帧,其中，L为bitmap序列的长度；
预定义***子帧序号为Si的子帧作为第二类子帧，其中，i＝[0，1,…,Nr-1]。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例3
本实施例是根据本公开的可选实施例，用于结合实例对本申请进行详细说明：
本实施例在边链路Sidelink的资源池配置中，资源池中包含一个或多个子帧，对资源池中包含的子帧的指示通过子帧位图序列(bitmap)实现。根据基站指示的或***预配置的比特位图序列，从***子帧序号SFN(System Frame Number)为#0的子帧位置开始映射比特位图序列，通常，相应子帧配置位图序列的指示位为“1”时，表示此子帧为资源池中的子帧，为“0”时表示此子帧不作为资源池中的子帧。子帧配置的bitmap序列在***子帧序号范围内重复映射，达到对资源池中子帧的配置指示。图6是本公开实施例中资源池子帧bitmap映射示意图，如图6所示，采用40bits长度的bitmap序列指示资源池中的子帧配置，从SFN(或DFN，Direct Frame Number)＝0开始，按配置的bitmap序列进行映射，相应指示位为“1”的子帧配置为资源池中的子帧，bitmap映射在SFN/DFN周期内重复映射。
在***中，还可能对Sidelink配置第一类子帧，如同步子帧SLSS (Sidelink Synchronization Subframe)。在一个***子帧序号范围内，配置若干个第一类子帧，进一步的资源池子帧配置bitmap序列的映射指示不能在第一类子帧上进行。当***中配置了第一类子帧时，在***子帧序号范围内，除去第一类子帧的剩余子帧称为基本子帧，对基本子帧进行顺序编号，并在基本子帧上对资源池配置bitmap序列进行映射。图7是本公开实施例中在基本子帧上进行资源池子帧bitmap映射示意图之一，如图7所示，采用40bits长度的bitmap序列指示资源池中的子帧配置，从SFN(或DFN，Direct Frame Number)＝0开始，在基本子帧上按配置的bitmap序列进行映射，相应指示位为“1”的子帧配置为资源池中的子帧，bitmap映射在SFN/DFN周期内重复映射。
在上述资源池子帧映射的过程中，***子帧序号范围内共有N个子帧，N＝10240。配置的第一类子帧的数量为N0，则基本子帧的数量为***子帧数量减去第一类子帧的数量，即：
Ns＝N-N0
而资源池子帧配置bitmap序列的长度为L，L为***可配置值，如16，20，100等，因此L不一定能被N或Ns整除，即bitmap序列在***子帧序号范围内的重复映射，不能保障在基本子帧上进行整数次完整映射。图8是本公开实施例中在基本子帧上进行资源池子帧bitmap映射示意图之二，如图8所示，当不配置第一类子帧时，即N0＝0，则Ns＝N＝10240，且***采用L＝100的bitmap序列时，10240不能整除100，则bitmap序列不能在基本子帧上进行整数倍映射。
为使资源池子帧配置的bitmap序列能够在基本子帧上进行整数倍映射，需要在基本子帧中设置第二类子帧，也可以称为保留子帧，保留子帧的配置由第一类子帧的配置和资源池中子帧配置bitmap序列来确定。
保留子帧的配置包括在***子帧序号范围内，保留子帧的数量和/或位置。
首先，确定保留子帧的数量：
根据第一类子帧的数量N0，以及bitmap序列的长度L确定保留子帧 的数量Nr：
Nr＝Ns mod L
其次，确定保留子帧的位置：
根据预定义的或网络侧配置的规则，确定保留子帧的位置。具体的规则包括以下至少之一：
从***子帧中序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为第二类子帧，Nr为第二类子帧的数量；
从***子帧中序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为第二类子帧；
在***子帧中，从第一指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为第二类子帧，其中，第一指定子帧由***预定义或者由网络侧配置指示；
在基本子帧中顺次编号，从基本子帧序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为第二类子帧，基本子帧为***子帧序号范围内所有***子帧中去除第一类子帧后的剩余子帧；
在基本子帧中顺次编号，从基本子帧序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为第二类子帧；
在基本子帧中顺次编号，从第二指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为第二类子帧，其中，第二指定子帧由***预定义，或者由网络侧配置指示；
在基本子帧中顺次编号，子帧序号为a+b*T的子帧作为第二类子帧，其中，T等于Ns除以Nr向下取整，其中，a为非负整数，b＝[0，1,2…,Nr-1]，或者b＝[1,2,3…,Nr]；
在基本子帧中顺次编号，子帧序号为a+b*L的子帧作为第二类子帧,其中，L为bitmap序列的长度；
预定义***子帧序号为Si的子帧作为第二类子帧，其中，i＝ [0，1,…,Nr-1]。
上述方法在不冲突的条件下可以任意组合使用，下面通过具体实例来进一步说明。
网络侧包括以下实体中的一种或多种：演进型基站(eNB)、中继站(RN)、小区协作实体(MCE)、网关(GW)、移动性管理设备(MME)、演进型通用陆地无线接入网(EUTRAN)操作管理及维护(OAM)管理器，下面以eNB作为网络侧实体为例进行说明。
实例一
在V2X***中，eNB通过高层信令配置不设置SLSS子帧，则***中的所有上行子帧都可以进行V2X资源池子帧的映射指示，即Ns＝N＝10240。
当eNB通过高层信令配置SLSS子帧，且SLSS子帧数量N0＝64。则***中可以进行V2X资源池子帧的映射指示的基本子帧Ns＝N-N0＝10176。
当eNB通过高层信令配置SLSS子帧，且SLSS子帧数量N0＝128。则***中可以进行V2X资源池子帧的映射指示的基本子帧Ns＝N-N0＝10112。
当V2X资源池子帧配置bitmap的长度L可配置为16，20，100bits时，结合第一类子帧的配置和资源池子帧配置bitmap的长度，可以确定第二类子帧，即保留子帧的数量Nr，如表1所示。
表1
Figure PCTCN2017109158-appb-000001
当eNB通过高层信令配置SLSS子帧，SLSS子帧数量N0＝64，且配置资源池的bitmap映射有起始映射偏移时，子帧偏移量Ne＝20。则***中可以进行V2X资源池子帧的映射指示的基本子帧Ns＝N-N0–Ne＝10156，则相应的不同bitmap长度下的保留子帧数量如表2所示。
表2
Bitmap长度 保留子帧数Nr
16 12
20 16
100 56
实例二
***预定义保留子帧的位置确定规则为，从***子帧序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为所述保留子帧。
根据保留子帧的数量Nr，从***子帧序号#0开始的连续Nr个子帧[#0,…,#Nr-1]作为保留子帧，不进行资源池子帧bitmap序列的映射，图9是本公开实例二的映射示意图，如图9所示。
通过设置保留子帧，使可用于映射bitmap序列的子帧数恰好是bitmap长度的整数倍，达到连续的bitmap映射指示，使资源池中的子帧配置周期性重复，有利于在资源池中使用子帧的UE保持稳定的时延，保障资源调度使用的连续性。
实例三
***预定义保留子帧的位置确定规则为，从基本子帧序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为所述保留子帧。
根据保留子帧的数量Nr，从基本子帧序号#Ns-1开始向前的连续Nr个子帧[#Ns-Nr,…,#Ns-1]作为保留子帧，不进行资源池子帧bitmap序列的映射，图10是本公开实例三的映射示意图，如图10所示。
实例四
***预定义保留子帧的位置确定规则为，在基本子帧中顺次编号，子 帧序号为a+b*T的子帧作为所述保留子帧，其中，
Figure PCTCN2017109158-appb-000002
其中，a＝0，b＝[0,1,…,Nr-1]。
根据保留子帧的数量Nr，在基本子帧范围内，将Nr个保留子帧均匀的分布，相邻的两个保留子帧之间子帧间隔为T，即子帧[#a,#a+T，…,#a+T*(Nr-1)]作为保留子帧，不进行资源池子帧bitmap序列的映射，图11是本公开实例四的映射示意图，如图11所示。
实例五
eNB配置指示保留子帧的位置确定规则为，子帧序号为a+b*L的子帧作为所述保留子帧,其中，0≤a≤Ns-1，b＝[0,1,…,Nr-1]。
根据保留子帧的数量Nr，在基本子帧范围内，按资源池子帧bitmap的长度，等间隔设置保留子帧，相邻的两个保留子帧之间子帧间隔为L，即子帧[#a,#a+L，…,#a+L*(Nr-1)]作为保留子帧，不进行资源池子帧bitmap序列的映射。
实施例4
本公开的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的程序代码：
S1，根据第一类子帧的配置和资源池中的子帧配置位图bitmap序列确定第二类子帧的配置；其中，第一类子帧是指在***子帧序号范围内不进行bitmap序列映射的子帧；第二类子帧的配置是指在***子帧序号范围内的数量和/或位置。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执 行根据第一类子帧的配置和资源池中的子帧配置位图bitmap序列确定第二类子帧的配置；其中，第一类子帧是指在***子帧序号范围内不进行bitmap序列映射的子帧；第二类子帧的配置是指在***子帧序号范围内的数量和/或位置。
可选地，本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本公开的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本公开不限制于任何特定的硬件和软件结合。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
工业实用性
通过本公开，根据第一类子帧的配置和资源池的子帧配置bitmap序列确定第二类子帧的配置，其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述bitmap序列的映射；根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置bitmap序列的映射，通过设置第二类子帧，使可用于映射资源池子帧bitmap序列的子帧数恰好是bitmap长度的整数倍，达到连续的bitmap映射指示，使资源池中的子帧配置周期性重复，有利于在资源池中使用子帧的UE保持稳定的时延，保障资源调度使用的连续性。解决了相关技术中在资源池包含的子帧中进行信息传输 时时延不稳定等问题。

Claims (13)

  1. 一种子帧配置方法，包括：
    根据第一类子帧的配置和资源池的子帧配置位图序列确定第二类子帧的配置，其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述位图序列的映射；
    根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置位图序列的映射。
  2. 根据权利要求1所述的方法，其中，所述第一类子帧包括：
    边链路同步子帧，和/或，偏移子帧，其中，所述边链路同步子帧是指用于发送边链路同步信号的子帧，所述偏移子帧是指从***子帧序号最小的子帧开始的连续Ne个子帧，Ne为子帧偏移指示值，所述子帧偏移指示值由网络侧配置或者***预定义,Ne为非负整数。
  3. 根据权利要求1所述的方法，其中，所述第二类子帧的配置是指在***子帧序号范围内所述第二类子帧的数量和/或位置。
  4. 根据权利要求1所述的方法，其中，根据第一类子帧的配置和资源池的子帧配置位图序列确定第二类子帧的配置包括：
    根据所述第一类子帧的数量N0，以及所述位图序列的长度L确定所述第二类子帧的数量Nr；
    其中，Nr等于基本子帧数量Ns对所述位图序列的长度L取模，所述基本子帧为***子帧序号范围内所有***子帧中去除所述第一类子帧后的剩余子帧，N0，Nr为非负整数，L为正整数。
  5. 根据权利要求1所述的方法，其中，根据第一类子帧的配置和资源池的子帧配置位图序列确定第二类子帧的配置包括：
    根据预定义的或网络侧配置的规则确定所述第二类子帧的位置。
  6. 根据权利要求5所述的方法，其中，所述规则包括以下一项或多项：
    从***子帧中序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为所述第二类子帧，Nr为所述第二类子帧的数量；
    从所述***子帧中序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为所述第二类子帧；
    在所述***子帧中，从第一指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为所述第二类子帧，其中，所述第一指定子帧由***预定义或者由网络侧配置指示；
    在基本子帧中顺次编号，从所述基本子帧序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为所述第二类子帧，所述基本子帧为所述***子帧序号范围内所有***子帧中去除所述第一类子帧后的剩余子帧；
    在所述基本子帧中顺次编号，从所述基本子帧序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为所述第二类子帧；
    在所述基本子帧中顺次编号，从第二指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为所述第二类子帧，其中，所述第二指定子帧由***预定义，或者由网络侧配置指示；
    在所述基本子帧中顺次编号，子帧序号为a+b*T的子帧作为所述第二类子帧，其中，T等于Ns除以Nr向下取整，其中，a为非负整数，b＝[0，1，2…,Nr-1]，或者b＝[1,2,3…,Nr]；
    在所述基本子帧中顺次编号，子帧序号为a+b*L的子帧作为所述第二类子帧,其中，L为所述位图序列的长度；
    预定义***子帧序号为Si的子帧作为所述第二类子帧，其中，i＝[0，1,2,…,Nr-1]。
  7. 根据权利要求5所述的方法，其中，所述网络侧包括以下至少之一：
    演进型基站eNB、中继站RN、小区协作实体MCE、网关GW、 移动性管理设备MME、演进型通用陆地无线接入网EUTRAN、操作管理及维护OAM管理器。
  8. 一种子帧配置装置，包括：
    确定模块，设置为根据第一类子帧的配置和资源池的子帧配置位图序列确定第二类子帧的配置；其中，所述第二类子帧是保留子帧，所述保留子帧不进行所述位图序列的映射；
    映射模块，设置为根据所述第一类子帧的配置和所述第二类子帧的配置进行所述资源池的子帧配置位图序列的映射。
  9. 根据权利要求8所述的装置，其中，所述第一类子帧包括：
    边链路同步子帧，和/或，偏移子帧，其中，所述边链路同步子帧是指用于发送边链路同步信号的子帧，所述偏移子帧是指从***子帧序号最小的子帧开始的连续Ne个子帧，Ne为子帧偏移指示值，所述子帧偏移指示值由网络侧配置或者***预定义,Ne为非负整数。
  10. 根据权利要求8所述的装置，其中，所述第二类子帧的配置是指在***子帧序号范围内所述第二类子帧的数量和/或位置。
  11. 根据权利要求8所述的装置，其中，所述确定模块包括：
    第一确定单元，设置为根据所述第一类子帧的数量N0，以及所述位图序列的长度L确定所述第二类子帧的数量Nr；
    其中，Nr等于基本子帧数量Ns对所述位图序列的长度L取模，其中，所述基本子帧为***子帧序号范围内所有***子帧中去除所述第一类子帧后的剩余子帧，N0，Nr为非负整数，L为正整数。
  12. 根据权利要求8所述的装置，其中，所述确定模块包括：
    第二确定单元，设置为根据预定义的或网络侧配置的规则确定所述第二类子帧的位置。
  13. 根据权利要求12所述的装置，其中，所述规则包括以下一项或多项：
    从***子帧中序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为所述第二类子帧，Nr为所述第二类子帧的数量；
    从所述***子帧中序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为所述第二类子帧；
    在所述***子帧中，从第一指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为所述第二类子帧，其中，所述第一指定子帧由***预定义或者由网络侧配置指示；
    在基本子帧中顺次编号，从所述基本子帧序号最小的子帧开始，按子帧序号递增的连续Nr个子帧为所述第二类子帧，所述基本子帧为所述***子帧序号范围内所有***子帧中去除所述第一类子帧后的剩余子帧；
    在所述基本子帧中顺次编号，从所述基本子帧序号最大的子帧开始，按子帧序号递减的连续Nr个子帧为所述第二类子帧；
    在所述基本子帧中顺次编号，从第二指定子帧开始，按子帧序号递增或递减的连续Nr个子帧为所述第二类子帧，其中，所述第二指定子帧由***预定义，或者由网络侧配置指示；
    在所述基本子帧中顺次编号，子帧序号为a+b*T的子帧作为所述第二类子帧，其中，T等于Ns除以Nr向下取整，其中，a为非负整数，b＝[0，1,2…,Nr-1]，或者b＝[1,2,3…,Nr]；
    在所述基本子帧中顺次编号，子帧序号为a+b*L的子帧作为所述第二类子帧,其中，L为所述位图序列的长度；
    预定义***子帧序号为Si的子帧作为所述第二类子帧，其中，i＝[0，1,…,Nr-1]。
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