WO2017133417A1 - 数据信道子帧的指示方法及装置 - Google Patents

数据信道子帧的指示方法及装置 Download PDF

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Publication number
WO2017133417A1
WO2017133417A1 PCT/CN2017/070969 CN2017070969W WO2017133417A1 WO 2017133417 A1 WO2017133417 A1 WO 2017133417A1 CN 2017070969 W CN2017070969 W CN 2017070969W WO 2017133417 A1 WO2017133417 A1 WO 2017133417A1
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Prior art keywords
subframe
determining
sequence
mapping
indication sequence
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PCT/CN2017/070969
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English (en)
French (fr)
Inventor
杨瑾
袁明
卢有雄
黄双红
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中兴通讯股份有限公司
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Publication of WO2017133417A1 publication Critical patent/WO2017133417A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for indicating a data channel subframe.
  • 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 Vehicle to Vehicle (V2V) and Vehicle to Person (Vehicle to Person). , referred to as V2P), the interconnection between vehicle and infrastructure (V2I), and the effective use of information extraction and sharing on the information network platform to effectively control and provide vehicles.
  • V2P Vehicle to Vehicle
  • V2I Vehicle to Person
  • Vehicle networking can realize communication-based vehicle information notification and collision hazard warning. By using 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.
  • FIG. 1 is a schematic diagram of a D2D communication structure according to the related art. As shown in FIG. 1, the communication mode is significantly different from the traditional cellular system communication mode.
  • the characteristics of the V2V communication for the Internet of Vehicles, the short-distance communication between the vehicle and the vehicle can apply the D2D communication mode, which saves the wireless spectrum resources, reduces the data transmission pressure of the core network, and can reduce the system resource occupation and increase Cellular communication system spectrum efficiency, reducing terminal transmission power consumption, and largely saving network operation costs and other effects.
  • the V2V communication system can be used as a special application of D2D communication mode.
  • V2V UE can use the direct communication method between D2D to transmit data.
  • the resource scheme in D2D communication mode is not fully applicable to V2V communication. Demand for business delay, capacity, etc.
  • the resource solution in the D2D communication mode is not applicable to the problem of delay, capacity, and the like of the V2V communication service, and there is currently no effective solution.
  • the embodiment of the present invention provides a method and a device for indicating a data channel subframe, so as to solve at least the problem that the resource scheme in the D2D communication mode is not applicable to the delay, capacity, and the like of the V2V communication service.
  • a method for indicating a data channel subframe including:
  • mappings of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe include:
  • a corresponding subframe indication sequence Determining, according to the time domain resource pattern index, a corresponding subframe indication sequence, where the subframe indication sequence is in a bitmap bitmap manner to indicate whether the N subframes are data channel subframes, wherein N is a bitmap sequence length, where The indication of the bitmap sequence to the N subframes is a primary mapping, and the number of mappings of the subframe indication sequence is the number of times the bitmap sequence indicates to the subframe;
  • the mapping start subframe of the subframe indication sequence is the first subframe indicated when the bitmap sequence is mapped to the subframe, where N is a positive integer.
  • the method further includes:
  • determining a number of times of mapping of the subframe indication sequence and/or a manner of mapping the start subframe, and/or a manner of determining the number of transmissions or the number of retransmissions of the data packet including at least one of the following:
  • the network side device is indicated by high layer signaling and/or physical layer signaling;
  • the user equipment is indicated by high layer signaling and/or physical layer signaling;
  • the number of mappings of the subframe indication sequence and/or the mapping start subframe is determined in a manner predefined by the system, and/or the number of transmissions of the data packet is determined by a manner predefined by the system.
  • the number of retransmissions including at least one of the following:
  • mapping start subframes of the subframe indication sequence Pre-defined fixed subframes by the system as mapping start subframes of the subframe indication sequence
  • a fixed value is predefined by the system as the number of times the packet is transmitted or the number of retransmissions.
  • the determining, according to the manner determined by the user equipment group, the mapping times of the subframe indication sequence and/or the mapping start subframe, and/or determining the data according to the manner determined by the user equipment group including at least one of the following:
  • the number of transmissions or retransmissions of the data packet used by the group is determined according to a group to which the user equipment belongs.
  • determining the number of mappings of the subframe indication sequence according to the manner determined by the used resource pool includes:
  • mapping start subframe of the subframe indication sequence includes:
  • the determining the number of transmissions or the number of retransmissions of the data packet according to the manner determined by the resource pool used includes:
  • the number of transmissions or retransmissions of the data packet is determined according to a control channel resource pool and/or a data channel resource pool used by the user equipment.
  • the network side device determines, by means of high layer signaling and/or physical layer signaling, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or according to the network.
  • the side device determines the number of transmissions or the number of retransmissions of the data packet by means of high layer signaling and/or physical layer signaling, and the indication manner includes at least one of the following:
  • the network side device When indicated by the high layer signaling, the network side device controls the RRC message indication by using a system broadcast message and/or a radio resource;
  • the network side device When indicated by the physical layer signaling, the network side device indicates by using downlink control information DCI signaling.
  • the user equipment determines, by means of higher layer signaling and/or physical layer signaling, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or according to the user equipment.
  • the manner of indicating the high-level signaling and/or the physical layer signaling indicates the number of transmissions or the number of retransmissions of the data packet, and the indication manner includes at least one of the following:
  • the user equipment When indicated by the high layer signaling, the user equipment indicates by using an RRC message
  • the user equipment When indicated by the physical layer signaling, the user equipment is indicated by the side link control information SCI signaling.
  • mapping start subframe of the subframe indication sequence indicating by the offset and/or the subframe number of the subframe
  • the subframe indicates a mapping start subframe of the sequence
  • the offset is a subframe offset of a mapping start subframe of the subframe indication sequence with respect to a resource period boundary;
  • the offset is a subframe offset between a mapping start subframe of the subframe indication sequence and a subframe where the control information is located;
  • the subframe number is a sequential subframe number in a period; or,
  • the subframe number is a physical subframe number
  • the subframe number is a logical sequence subframe number in the resource pool.
  • the determining, according to the service type of the data packet to be transmitted, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or determining the number of transmissions or the number of retransmissions of the data packet includes at least one of the following:
  • the service type of the data packet is determined according to an indication of the user equipment
  • the service type of the data packet is determined by the resource pool used by the user equipment.
  • determining a mapping start subframe of the subframe indication sequence is: determining a mapping start subframe of the subframe indication sequence according to a relationship between a control channel resource and a control channel resource, where the The relationship between control channel resources includes at least one of the following:
  • the subframe between the mapping start subframe of the subframe indication sequence and the subframe where the control information is located is a fixed subframe interval
  • the period of the subframe in which the control information is located is a current period, and the mapping start subframe of the subframe indication sequence is the first subframe in the next period after the current period;
  • the period of the subframe in which the control information is located is the current period, and the mapping start subframe of the subframe indication sequence is the same subframe number as the subframe in which the control information is located in the next period after the current period.
  • the manner of determining the mapping start subframe of the subframe indication sequence is: determining a mapping start subframe of the subframe indication sequence according to the identifier information, where the identifier information includes at least one of the following:
  • the user equipment identification ID the user equipment group identification ID, the service type serial number of the data packet, and the control channel resource index number
  • the method for determining a mapping start subframe of the subframe indication sequence according to the identifier information includes:
  • the obtained value is used as a subframe number of the mapping start subframe of the subframe indication sequence, or is used as the mapping start subframe and the control information.
  • determining the number of transmissions or the number of retransmissions of the data packet includes:
  • the number of transmissions of the data packet is:
  • X is the number of transmissions of the data packet
  • Y is the number of retransmissions.
  • X, Y, m, and t are all positive integers.
  • the network side device includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperative entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network, EUTRAN operation management, and maintenance OAM. Manager.
  • the data channel subframe is indicated by the subframe indication sequence, where the data channel subframe that can be indicated is an actual physical subframe, or is a dedicated data channel subframe, or is a logically continuous dedicated sub-frame. frame.
  • a device for indicating a data channel subframe including:
  • an indication module configured to indicate one or more data channel subframes by determining a mapping sequence of the subframe indication sequence corresponding to the time domain resource pattern index and/or mapping a starting subframe
  • a transmitting module is configured to transmit and/or retransmit one or more data packets on the data channel subframe.
  • mappings of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe include:
  • a corresponding subframe indication sequence Determining, according to the time domain resource pattern index, a corresponding subframe indication sequence, where the subframe indication sequence is in a bitmap bitmap manner to indicate whether the N subframes are data channel subframes, wherein N is a bitmap sequence length, where The indication of the bitmap sequence to the N subframes is a primary mapping, and the number of mappings of the subframe indication sequence is the number of times the bitmap sequence indicates to the subframe;
  • the mapping start subframe of the subframe indication sequence is the first subframe indicated when the bitmap sequence is mapped to the subframe, where N is a positive integer.
  • the method before transmitting or retransmitting one or more data packets on the data channel subframe, the method further includes:
  • determining a number of times of mapping of the subframe indication sequence and/or a manner of mapping the start subframe, and/or a manner of determining the number of transmissions or the number of retransmissions of the data packet including at least one of the following:
  • the network side device is indicated by high layer signaling and/or physical layer signaling;
  • the user equipment is indicated by high layer signaling and/or physical layer signaling;
  • the number of mappings of the subframe indication sequence and/or the mapping start subframe is determined in a manner predefined by the system, and/or the number of transmissions of the data packet is determined by a manner predefined by the system.
  • the number of retransmissions including at least one of the following:
  • mapping start subframes of the subframe indication sequence Pre-defined fixed subframes by the system as mapping start subframes of the subframe indication sequence
  • a fixed value is predefined by the system as the number of times the packet is transmitted or the number of retransmissions.
  • the determining, according to the manner determined by the user equipment group, the mapping times of the subframe indication sequence and/or the mapping start subframe, and/or determining the data according to the manner determined by the user equipment group including at least one of the following:
  • the number of transmissions or retransmissions of the data packet used by the group is determined according to a group to which the user equipment belongs.
  • determining the number of mappings of the subframe indication sequence according to the manner determined by the used resource pool includes:
  • mapping start subframe of the subframe indication sequence includes:
  • the determining the number of transmissions or the number of retransmissions of the data packet according to the manner determined by the resource pool used includes:
  • the number of transmissions or retransmissions of the data packet is determined according to a control channel resource pool and/or a data channel resource pool used by the user equipment.
  • the network side device determines, by means of high layer signaling and/or physical layer signaling, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or according to the network.
  • the side device determines the number of transmissions or the number of retransmissions of the data packet by means of high layer signaling and/or physical layer signaling, and the indication manner includes at least one of the following:
  • the network side device When indicated by the high layer signaling, the network side device controls the RRC message indication by using a system broadcast message and/or a radio resource;
  • the network side device When indicated by the physical layer signaling, the network side device indicates by using downlink control information DCI signaling.
  • the user equipment determines, by means of higher layer signaling and/or physical layer signaling, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or according to the user equipment.
  • the manner of indicating the high-level signaling and/or the physical layer signaling indicates the number of transmissions or the number of retransmissions of the data packet, and the indication manner includes at least one of the following:
  • the user equipment When indicated by the high layer signaling, the user equipment indicates by using an RRC message
  • the user equipment When indicated by the physical layer signaling, the user equipment is indicated by the side link control information SCI signaling.
  • mapping start subframe of the subframe indication sequence indicating by the offset and/or the subframe number of the subframe
  • the subframe indicates a mapping start subframe of the sequence
  • the offset is a subframe offset of a mapping start subframe of the subframe indication sequence with respect to a resource period boundary;
  • the offset is a subframe offset between a mapping start subframe of the subframe indication sequence and a subframe where the control information is located;
  • the subframe number is a sequential subframe number in a period; or,
  • the subframe number is a physical subframe number
  • the subframe number is a logical sequence subframe number in the resource pool.
  • the determining, according to the service type of the data packet to be transmitted, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or determining the number of transmissions or the number of retransmissions of the data packet includes at least one of the following:
  • the service type of the data packet is determined according to an indication of the user equipment
  • the service type of the data packet is determined by the resource pool used by the user equipment.
  • determining a mapping start subframe of the subframe indication sequence is: determining a mapping start subframe of the subframe indication sequence according to a relationship between a control channel resource and a control channel resource, where the The relationship between control channel resources includes at least one of the following:
  • the subframe between the mapping start subframe of the subframe indication sequence and the subframe where the control information is located is a fixed subframe interval
  • the period of the subframe in which the control information is located is a current period, and the mapping start subframe of the subframe indication sequence is the first subframe in the next period after the current period;
  • the period of the subframe in which the control information is located is a current period, and the mapping start subframe of the subframe indication sequence is the a subframe of the same subframe number as the subframe in which the control information is located in the next period after the previous period;
  • the manner of determining the mapping start subframe of the subframe indication sequence is to determine a mapping start subframe of the subframe indication sequence according to the identifier information, where the identifier information includes at least one of the following:
  • the user equipment identification ID the user equipment group identification ID, the service type serial number of the data packet, and the control channel resource index number
  • the method for determining a mapping start subframe of the subframe indication sequence according to the identifier information includes:
  • the obtained value is used as a subframe number of the mapping start subframe of the subframe indication sequence, or is used as the mapping start subframe and the control information.
  • determining the number of transmissions or the number of retransmissions of the data packet includes:
  • the number of transmissions of the data packet is:
  • X is the number of transmissions of the data packet
  • Y is the number of retransmissions.
  • X, Y, m, and t are all positive integers.
  • the network side device includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperative entity MCE, a gateway GW, a mobility management device MME, an evolved universal terrestrial radio access network, EUTRAN operation management, and maintenance OAM. Manager.
  • the data channel subframe is indicated by the subframe indication sequence, where the data channel subframe that can be indicated is an actual physical subframe, or is a dedicated data channel subframe, or is a logically continuous dedicated sub-frame. frame.
  • a computer storage medium is further provided, and the computer storage medium may store an execution instruction for performing the implementation of the indication method of the data channel subframe in the foregoing embodiment.
  • one or more data channel subframes are indicated by determining the number of mapping times of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe, and the data channel subframe is One or more data packets are transmitted and/or retransmitted, which solves the problem that the resource scheme in the D2D communication mode is not suitable for the delay, capacity, and the like of the V2V communication service, and satisfies the requirements of the resource scheme in the V2V communication mode. .
  • FIG. 1 is a schematic diagram of a D2D communication structure according to the related art
  • FIG. 2 is a flowchart of a method for indicating a data channel subframe according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of a pointing device for a data channel subframe according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a frame structure of an LTE system according to the related art
  • FIG. 5 is a schematic diagram of an LTE system resource block RB structure according to related art
  • FIG. 6 is a schematic diagram showing a PSSCH subframe according to a TRP bitmap repetition mapping in an LTE D2D system in the related art
  • FIG. 7 is a schematic diagram of a TRP bitmap repetition mapping indication PSSCH subframe based on a PSSCH resource pool in an LTE D2D system according to the related art
  • FIG. 8 is a schematic diagram 1 of a data channel subframe indicated by a TRP bitmap sequence mapping number and a start position according to a preferred embodiment of the present invention
  • FIG. 9 is a second schematic diagram of a data channel subframe indicated by a TRP bitmap sequence mapping number and a starting position according to a preferred embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a data channel subframe configuration indicated by a TRP bitmap sequence mapping number, a starting position, and a number of data packet transmissions according to a preferred embodiment of the present invention
  • FIG. 11 is a third schematic diagram of a data channel subframe indicated by a TRP bitmap sequence mapping number and a start position according to a preferred embodiment of the present invention.
  • FIG. 2 is a flowchart of a method for indicating a data channel subframe according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps. :
  • Step S202 indicating one or more data channel subframes by determining a mapping number of subframe indication sequences corresponding to the time domain resource pattern index and/or mapping a starting subframe.
  • Step S204 transmitting and/or retransmitting one or more data packets on the one or more data channel subframes.
  • determining the number of mappings and/or mappings of the subframe indication sequence corresponding to the time domain resource pattern index The starting subframe, indicating one or more data channel subframes, transmitting and/or retransmitting one or more data packets on one or more data channel subframes, solving the resource scheme in the D2D communication mode.
  • the problem of delay, capacity, etc. for the V2V communication service satisfies the requirements of the resource plan in the V2V communication mode.
  • mapping times of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe include:
  • the subframe indication sequence is in a bit map manner to indicate whether the N subframes are data channel subframes, wherein N is a bitmap sequence length, and the bitmap sequence
  • the indication to the N subframes is a mapping, and the number of mappings of the subframe indication sequence is the number of times the bitmap sequence indicates to the subframe;
  • the mapping start subframe of the subframe indication sequence is the first subframe indicated when the bitmap sequence is mapped to the subframe, where N is a positive integer.
  • the method before transmitting or retransmitting one or more data packets on the data channel subframe, the method further includes:
  • determining the number of mappings of the subframe indication sequence and/or the manner of mapping the starting subframe, and/or determining the number of transmission times or the number of retransmissions of the data packet including at least the following One:
  • the network side device is indicated by high layer signaling and/or physical layer signaling;
  • the user equipment is indicated by high layer signaling and/or physical layer signaling;
  • the number of mappings of the subframe indication sequence and/or the mapping start subframe is determined in a manner predefined by the system, and/or the transmission of the data packet is determined by a manner predefined by the system.
  • the number of times or retransmissions including at least one of the following:
  • a fixed value is predefined by the system as the number of mappings of the subframe indication sequence
  • a fixed subframe is predefined by the system as a mapping start subframe of the subframe indication sequence
  • a fixed value is predefined by the system as the number of times the packet is transmitted or the number of retransmissions.
  • determining the number of mappings of the subframe indication sequence according to the manner determined by the user equipment group And/or mapping the starting subframe, and/or determining the number of transmissions or the number of retransmissions of the data packet according to the manner determined by the user equipment group including at least one of the following:
  • the number of transmissions or retransmissions of the data packet used by the group is determined according to the group to which the user equipment belongs.
  • determining the number of mappings of the subframe indication sequence according to the determined manner of the resource pool used includes:
  • determining, according to the determined resource pool, the mapping start subframe of the subframe indication sequence includes:
  • the number of transmissions or the number of retransmissions of the data packet is determined according to the manner determined by the resource pool used, including:
  • the number of transmissions or retransmissions of the data packet is determined according to a control channel resource pool and/or a data channel resource pool used by the user equipment.
  • the network side device determines, by means of high layer signaling and/or physical layer signaling, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or according to The network side device determines the number of transmissions or the number of retransmissions of the data packet by means of high layer signaling and/or physical layer signaling, and the indication manner includes at least one of the following:
  • the network side device When indicated by the high layer signaling, the network side device controls the RRC message indication by using a system broadcast message and/or a radio resource;
  • the network side device When indicated by the physical layer signaling, the network side device indicates by using downlink control information DCI signaling.
  • the user equipment determines the number of mappings of the subframe indication sequence and/or the mapping start subframe by means of high layer signaling and/or physical layer signaling indication, and/or according to the user.
  • the device determines the number of transmissions or the number of retransmissions of the data packet by means of high layer signaling and/or physical layer signaling, and the indication manner includes at least one of the following:
  • the user equipment When indicated by the high layer signaling, the user equipment indicates by using an RRC message
  • the user equipment When indicated by the physical layer signaling, the user equipment is indicated by the side link control information SCI signaling.
  • mapping start subframe of the subframe indication sequence when the mapping start subframe of the subframe indication sequence is determined by the high layer signaling and/or the physical layer signaling, by indicating an offset of the subframe and/or a subframe number indication
  • the subframe indicates a mapping start subframe of the sequence
  • the offset is a subframe offset of the mapping start subframe of the subframe indication sequence with respect to a resource period boundary;
  • the offset is a subframe offset between the mapping start subframe of the subframe indication sequence and the subframe where the control information is located;
  • the subframe number is a sequential subframe number in a period; or,
  • the subframe number is a physical subframe number
  • the subframe number is a logical sequence subframe number in the resource pool.
  • the number of mappings of the subframe indication sequence and/or the mapping start subframe is determined according to the service type of the data packet to be transmitted, and/or the number of transmissions or retransmission of the data packet is determined.
  • the number of times, wherein the manner in which the service type of the data packet is determined includes at least one of the following:
  • the service type of the data packet is determined according to the indication of the user equipment
  • the service type of the packet is determined by the resource pool used by the user equipment.
  • determining a mapping start subframe of the subframe indication sequence is: determining a mapping start subframe of the subframe indication sequence according to a relationship between a control channel resource and a control channel resource, where The relationship between the control channel resources includes at least one of the following:
  • the subframe between the mapping start subframe of the subframe indication sequence and the subframe where the control information is located is a fixed subframe interval
  • the period of the subframe in which the control information is located is a current period, and the mapping start subframe of the subframe indication sequence is the first subframe in the next period after the current period;
  • the period of the subframe in which the control information is located is a current period
  • the mapping start subframe of the subframe indication sequence is a subframe of the same subframe sequence number as the subframe in which the control information is located in the next period after the current period;
  • the manner of determining the mapping start subframe of the subframe indication sequence is: determining a mapping start subframe of the subframe indication sequence according to the identifier information, where the identifier information includes at least one of the following:
  • the user equipment identification ID the user equipment group identification ID, the service type serial number of the data packet, and the control channel resource index number
  • the method for determining a mapping start subframe of the subframe indication sequence according to the identifier information includes:
  • the obtained value is used as a subframe number of the mapping start subframe of the subframe indication sequence, or as a subframe of the mapping start subframe and the control information. Subframe interval between.
  • determining the number of transmissions or the number of retransmissions of the data packet includes:
  • the number of transmissions of the data packet is:
  • X is the number of transmissions of the packet
  • Y is the number of retransmissions.
  • X, Y, m, and t are all positive integers.
  • the network side device includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperation entity MCE, a gateway GW, a mobility management device MME, and an evolved universal terrestrial radio access network EUTRAN operation. Manage and maintain the OAM Manager.
  • a device for indicating a data channel is also provided, and the device is used 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. 3 is a structural block diagram of a pointing device for a data channel subframe according to an embodiment of the present invention. As shown in FIG. 3, the device includes:
  • the indicating module 32 is configured to indicate one or more data channel subframes by determining a mapping number of subframe indication sequences corresponding to the time domain resource pattern index and/or mapping a starting subframe,
  • the transmitting module 34, and the instructing module 32, are arranged to transmit and/or retransmit one or more data packets on the data channel subframe.
  • mapping times of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe include:
  • the subframe indication sequence is in a bit map manner to indicate whether the N subframes are data channel subframes, wherein N is a bitmap sequence length, and the bitmap sequence
  • the indication to the N subframes is a mapping, and the number of mappings of the subframe indication sequence is the number of times the bitmap sequence indicates to the subframe;
  • the mapping start subframe of the subframe indication sequence is the first subframe indicated when the bitmap sequence is mapped to the subframe, where N is a positive integer.
  • the method before transmitting or retransmitting one or more data packets on the data channel subframe, the method further includes:
  • determining the number of mappings of the subframe indication sequence and/or the manner of mapping the starting subframe, and/or determining the number of transmission times or the number of retransmissions of the data packet including at least the following One:
  • the network side device is indicated by high layer signaling and/or physical layer signaling;
  • the user equipment is indicated by high layer signaling and/or physical layer signaling;
  • the number of mappings of the subframe indication sequence and/or the mapping start subframe is determined in a manner predefined by the system, and/or the transmission of the data packet is determined by a manner predefined by the system.
  • the number of times or retransmissions including at least one of the following:
  • a fixed value is predefined by the system as the number of mappings of the subframe indication sequence
  • a fixed subframe is predefined by the system as a mapping start subframe of the subframe indication sequence
  • a fixed value is predefined by the system as the number of times the packet is transmitted or the number of retransmissions.
  • determining the number of mappings of the subframe indication sequence and/or the mapping start subframe according to the manner determined by the user equipment group and/or determining the manner according to the manner determined by the user equipment group.
  • the number of times the packet was transmitted or the number of retransmissions including at least one of the following:
  • the number of transmissions or retransmissions of the data packet used by the group is determined according to the group to which the user equipment belongs.
  • determining the number of mappings of the subframe indication sequence according to the determined manner of the resource pool used includes:
  • determining, according to the determined resource pool, the mapping start subframe of the subframe indication sequence includes:
  • the number of transmissions or the number of retransmissions of the data packet is determined according to the manner determined by the resource pool used, including:
  • the network side device determines, by means of high layer signaling and/or physical layer signaling, the number of mappings of the subframe indication sequence and/or the mapping start subframe, and/or according to The network side device determines the number of transmissions or the number of retransmissions of the data packet by means of high layer signaling and/or physical layer signaling, and the indication manner includes at least one of the following:
  • the network side device When indicated by the high layer signaling, the network side device controls the RRC message indication by using a system broadcast message and/or a radio resource;
  • the network side device When indicated by the physical layer signaling, the network side device indicates by using downlink control information DCI signaling.
  • the user equipment determines the number of mappings of the subframe indication sequence and/or the mapping start subframe by means of high layer signaling and/or physical layer signaling indication, and/or according to the user.
  • the device determines the number of transmissions or the number of retransmissions of the data packet by means of high layer signaling and/or physical layer signaling, and the indication manner includes at least one of the following:
  • the user equipment When indicated by the high layer signaling, the user equipment indicates by using an RRC message
  • the user equipment When indicated by the physical layer signaling, the user equipment is indicated by the side link control information SCI signaling.
  • mapping start subframe of the subframe indication sequence when the mapping start subframe of the subframe indication sequence is determined by the high layer signaling and/or the physical layer signaling, by indicating an offset of the subframe and/or a subframe number indication
  • the subframe indicates a mapping start subframe of the sequence
  • the offset is a subframe offset of the mapping start subframe of the subframe indication sequence with respect to a resource period boundary;
  • the offset is a subframe offset between the mapping start subframe of the subframe indication sequence and the subframe where the control information is located;
  • the subframe number is a sequential subframe number in a period; or,
  • the subframe number is a physical subframe number
  • the subframe number is a logical sequence subframe number in the resource pool.
  • the number of mappings of the subframe indication sequence and/or the mapping start subframe is determined according to the service type of the data packet to be transmitted, and/or the number of transmissions or retransmission of the data packet is determined.
  • the number of times, wherein the manner in which the service type of the data packet is determined includes at least one of the following:
  • the service type of the data packet is determined according to the indication of the user equipment
  • the service type of the packet is determined by the resource pool used by the user equipment.
  • determining a mapping start subframe of the subframe indication sequence is: determining a mapping start subframe of the subframe indication sequence according to a relationship between a control channel resource and a control channel resource, where The relationship between the control channel resources includes at least one of the following:
  • the subframe between the mapping start subframe of the subframe indication sequence and the subframe where the control information is located is a fixed subframe interval
  • the period of the subframe in which the control information is located is a current period, and the mapping start subframe of the subframe indication sequence is the first subframe in the next period after the current period;
  • the period of the subframe in which the control information is located is a current period
  • the mapping start subframe of the subframe indication sequence is a subframe of the same subframe sequence number as the subframe in which the control information is located in the next period after the current period;
  • the manner of determining the mapping start subframe of the subframe indication sequence is to determine a mapping start subframe of the subframe indication sequence according to the identifier information, where the identifier information includes at least one of the following:
  • the user equipment identification ID the user equipment group identification ID, the service type serial number of the data packet, and the control channel resource index number
  • the method for determining a mapping start subframe of the subframe indication sequence according to the identifier information includes:
  • the obtained value is used as a subframe number of the mapping start subframe of the subframe indication sequence, or as a subframe of the mapping start subframe and the control information. Subframe interval between.
  • determining the number of transmissions or the number of retransmissions of the data packet includes:
  • the number of transmissions of the data packet is:
  • X is the number of transmissions of the packet
  • Y is the number of retransmissions.
  • X, Y, m, and t are all positive integers.
  • the network side device includes at least one of the following: an evolved base station eNB, a relay station RN, a cell cooperation entity MCE, a gateway GW, a mobility management device MME, and an evolved universal terrestrial radio access network EUTRAN operation. Manage and maintain the OAM Manager.
  • the data channel subframe is indicated by the subframe indication sequence, where the data channel subframe that can be indicated is an actual physical subframe, or is a dedicated data channel subframe, or is logically continuous.
  • Dedicated sub-frame is indicated by the subframe indication sequence, where the data channel subframe that can be indicated is an actual physical subframe, or is a dedicated data channel subframe, or is logically continuous.
  • one or more data channel subframes are indicated by determining the number of mapping times of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe, and one or one of the data channel subframes Multiple data packets are transmitted and/or retransmitted, which solves the problem that the resource scheme in the D2D communication mode is not suitable for the delay, capacity, and the like of the V2V communication service, and satisfies the requirements of the resource scheme in the V2V communication mode.
  • a preferred embodiment of the present invention provides a method and apparatus for indicating a data channel subframe, by determining a mapping time of a time domain resource pattern, a starting subframe, indicating a used data channel subframe, and indicating
  • the method of transmitting data packets on a subframe achieves flexible indication of data channel subframes, adapts to service requirements, improves channel resource utilization, and improves data transmission. The effect of the rate.
  • the network side device includes one or more of the following entities: an evolved NodeB (abbreviated as eNB), a relay node (Relay Node, RN for short), and a multi-cell Coordination Entity (MCE). Gateway (GateWay, GW for short), Mobile Management Entity (MME), Evolved Universal Terrestrial Radio Access Network (EUTRAN), Operation Management and Maintenance (Operation Administration) And Maintenance (referred to as OAM) manager.
  • eNB evolved NodeB
  • Relay Node relay Node
  • MCE multi-cell Coordination Entity
  • Gateway Gateway
  • MME Mobile Management Entity
  • EUTRAN Evolved Universal Terrestrial Radio Access Network
  • OAM Operation Management and Maintenance
  • the following takes the eNB as the network side device entity as an example.
  • the radio resources of the UE are uniformly controlled by the evolved NodeB (eNB), and the eNB indicates the downlink or uplink resources configured by the UE, and the UE receives the eNB on the corresponding downlink resource according to the configuration indication of the eNB.
  • the transmitted data signal, or the signal is transmitted to the eNB on the uplink resource.
  • radio resources divide resources in units of radio frames in the time domain, each radio frame is 10 ms, and includes 10 subframes. Each sub-frame is 1 ms, divided into two slot slots of 0.5 ms, as shown in FIG. 4, which is a schematic diagram of a frame structure of an LTE system.
  • FIG. 5 is a schematic diagram of an LTE system resource block RB structure. The eNB can flexibly dynamically schedule the required time-frequency domain resources according to the UE requirements.
  • the system uplink subframe is used as a physical side link shared channel (PSSCH) subframe for transmitting D2D data, and the D2D transmitting UE with D2D data to be transmitted may be used.
  • PSSCH physical side link shared channel
  • the PSSCH subframe uses a time domain resource pattern TRP (Time Resource Pattern) to indicate one or more PSSCH subframes used.
  • TRP Time Resource Pattern
  • the eNB uses the Downlink Control Information (DCI) format 5 (D2D resource scheduling indication dedicated control information format) to indicate the TRP to the transmitting UE, and the transmitting UE controls the edge link (ie, the D2D link).
  • DCI Downlink Control Information
  • the TRP is indicated in the information (Sidelink Control Information, SCI for short).
  • SCI Servicelink Control Information
  • the indicated TRP is 7-bit information, indicating a TRP index, and each TRP index corresponds to a unique one-bit sequence.
  • the bitmap sequence indicated by the TRP index the corresponding subframe whose bit identifier is "1" is indicated as a PSSCH subframe, and the bitmap sequence is cyclically repeated in the D2D resource period, and the subframe configuration indication in the entire period is reached, as shown in the figure.
  • 6 is a schematic diagram of a TRP bitmap repetition mapping indicating a PSSCH subframe in an LTE D2D system.
  • the bitmap sequence indicated by the TRP performs a one-to-one correspondence indication on the logically consecutive subframes included in the resource pool.
  • the TRP bitmap repetition is performed based on the PSSCH resource pool in the LTE D2D system.
  • the mapping indicates a schematic diagram of a PSSCH subframe.
  • the mapping of the TRP bitmap sequence to the subframe also applies to the direct mapping indication to the actual physical subframe, and A mapping indication based on a logical subframe set, wherein the logical subframe is a dedicated subframe configured by the system for transmitting data information, or a dedicated subframe configured for a dedicated system, such as V2V Dedicated sub-frames, etc., will not be explained one by one below.
  • the PSSCH subframe is indicated by the TRP scheme in the D2D communication
  • the bitmap sequence corresponding to the TRP index is mapped to the corresponding subframe one-to-one from the initial mapping position, and the mapping is repeated in the resource pool period until the period.
  • one or more PSSCH subframes may be indicated for carrying D2D data information.
  • the data channel resource may adopt a configuration scheme of the PSSCH resource pool or adopt a newly defined resource pool scheme, but the TRP indicates that a new rule and method are needed for the indication method of the corresponding data channel subframe, and the present invention proposes a A method for indicating a data channel subframe by using a TRP in a V2V communication, and the specific method includes:
  • Method 1 Determine the number of bitmap sequence mappings corresponding to the TRP
  • the number of data subframes of the data channel can be flexibly controlled, and the number of data channel subframes indicated by the TRP can be adjusted according to the requirements of the service.
  • the problem of controlling the number of subframes indicated when the TRP scheme is applied to the V2X system is solved.
  • the manner of determining the number of mappings of the bitmap sequence corresponding to the TRP corresponding to the data channel subframe includes:
  • a certain fixed value is predefined by the system as the mapping number of the TRP bitmap sequence in the corresponding application scenario or system, and the value is a positive integer.
  • the scenarios or systems applied here include D2D or V2V application scenarios or systems.
  • the system-predefined fixed value is common D2D/V2V UE common information, and no signaling indication is required.
  • the D2D/V2V UE maps the TRP bitmap sequence according to a predefined value, and uses the indicated data subframe.
  • TRP mapping times can be defined for different application scenarios or systems.
  • the system is predefined in the V2V scenario, and is used to indicate that the TRP bitmap sequence of the data subframe is fixedly mapped t times, and the value of t is 1 or 2 or 3 or 4.
  • Different TRP mapping times values can be used according to different D2D/V2V UE groups.
  • the D2D/V2V UE group can be divided according to the service requirements of the UE, the UE attribute, the UE location, the UE capability, and the system setting. In different groups, the same or different TRP mapping times can be used to meet the actual requirements.
  • the corresponding TRP mapping times are determined according to the used control channel resource pool (such as PSCCH resource pool, SCI resource pool) or data channel resource pool (such as PSSCH resource pool).
  • Each resource pool has a unique value of the number of TRP mappings.
  • the number of TRP mappings used on each resource pool can be the same or different.
  • the number of TRP mappings used is indicated by the network side device through high layer signaling or physical layer signaling.
  • the network-side device may use a system broadcast message (System Information Block, SIB) or a Radio Resource Control (RRC) message to indicate the number of TRP mappings.
  • SIB System Information Block
  • RRC Radio Resource Control
  • the physical layer signaling indicates, the corresponding DCI signaling is used to indicate the number of TRP mappings used.
  • the number of TRP mappings used is indicated by the D2D/V2V UE through higher layer signaling or physical layer signaling.
  • the UE may use the RRC message to indicate the corresponding number of TRP mapping times to the receiving end UE.
  • the UE uses the corresponding control signaling (such as SCI) to indicate the number of TRP mappings used.
  • the number of TRP mappings used according to the service type of the data sent by the D2D/V2V UE For example, when the data sent by the UE is a periodic, common service type, the number of TRP mappings is s1, and the data sent by the UE is an event. In the case of trigger type, burst type, and emergency service type, the number of TRP mappings is s2.
  • the service type of the data may be determined according to the indication of the UE, the resource pool used, and the like.
  • the starting subframe of the bitmap sequence mapping corresponding to the TRP is determined:
  • the bit sequence corresponding to the TRP indicated by all the UEs uses the same subframe as the starting subframe of the mapping, the data channel subframes indicated by the TRPs of the UEs are relatively concentrated, so that the data channel subframe resources cannot reach the equalization. Use is not conducive to the fairness of resources. Therefore, for the bitmap sequence indicated by the TRP, a rule for mapping the starting subframe should be defined, so that the data channel subframe resources indicated by the TRP are used more uniformly and fairly, thereby avoiding resource conflicts, improving resource utilization, reducing interference, and the like. effect.
  • the specific manner of determining the starting subframe of the bitmap sequence mapping indicated by the TRP includes:
  • a certain fixed subframe is predefined by the system as a mapping start subframe of a TRP bitmap sequence in a corresponding application scenario or system.
  • the scenario or system applied here includes a D2D or V2V application scenario or system.
  • the system-predefined fixed start subframe is common known information for all D2D/V2V UEs and does not require signaling indication.
  • the D2D/V2V UE maps the TRP bitmap sequence from the start subframe subframe according to a predefined setting, and uses the indicated data subframe.
  • resources are divided according to a certain period in the time domain, and each period includes a certain number of subframes, and the system can pre-define the TRP bitmap mapping to the first of the period.
  • the subframe is used as a mapping start subframe, and the bitmap sequence determined according to the indicated TRP is mapped from the first subframe of the resource period.
  • the TRP mapping starts from this subframe; when the first physical subframe in the period cannot be used to transmit data information, the TRP bitmap The mapping starts from the first subframe in the period, where "first subframe” refers to the first subframe that can be used to transmit data, that is, the "first available subframe” in the logical period.
  • TRP mapping start subframes may be defined for different application scenarios or systems.
  • Different TRP mapping start subframes may be used according to different D2D/V2V UE groups.
  • the D2D/V2V UE group can be divided according to the UE's service requirements, UE attributes, UE location, UE capabilities, system settings, etc.
  • the same or different TRP mapping start subframes can be used to meet the actual situation. demand.
  • the TRP mapping start subframe used by the network side device indicates by high layer signaling or physical layer signaling.
  • the network side device may use the SIB or RRC message to indicate the corresponding TRP mapping start subframe, and when the physical layer signaling indicates, use the corresponding DCI signaling to indicate the adopted TRP mapping start subframe. .
  • the TRP mapping start subframe used by the D2D/V2V UE is indicated by higher layer signaling or physical layer signaling.
  • the UE may use the RRC message to indicate the corresponding TRP mapping start subframe to the receiving UE, and when the physical layer signaling indicates, the UE uses the corresponding control signaling (such as SCI) to indicate the adopted TRP. Map the starting subframe.
  • Determining the used TRP mapping start subframe according to the service type of the data sent by the D2D/V2V UE for example, when the data sent by the UE is a periodic, common service type, adopting a TRP mapping start subframe, and simultaneously when the UE When the transmitted data is an event-triggered, burst, or emergency service type, another TRP mapping start subframe is used.
  • the service type of the data may be determined according to the indication of the UE, the resource pool used, and the like.
  • the initiator of the TRP mapping may be indicated by indicating the offset offset, the subframe number, and the like. frame.
  • the offset may have multiple definition methods.
  • the offset is defined as an offset relative to the resource period boundary, that is, offset from the relative subframe of the first subframe in the period; or, the offset is defined as the corresponding control information.
  • the subframe offset between the subframes such as the offset offset subframes relative to the subframe in which the SCI information is located, is the mapping start subframe of the TRP, and the like.
  • Directly indicating the subframe number, indicating the starting subframe of the TRP mapping by using the subframe number, and the indicated subframe number may be a sequential subframe number, an actual physical subframe number, and a logical sequence in the resource pool. Frame number, etc.
  • the data channel resource is indicated by the control information.
  • the starting subframe of the TRP mapping may be determined by using a relative relationship with the control channel resource of the SCI, and carrying the control channel resource corresponding to the SCI information indicating the data channel resource. Can be called SCI resources.
  • the mapping start subframe of the TRP corresponding to the corresponding data channel subframe may be uniquely determined based on the SCI resource.
  • the TRP mapping start subframe is a subframe having a fixed subframe interval from the subframe in which the corresponding SCI information is located, for example, the first subframe after the SCI subframe starts to map the TRP, or the +n subframe after the SCI subframe.
  • TRP mapping start subframe As a TRP mapping start subframe;
  • the first subframe of the next period after the current period in which the SCI subframe is located is used as the TRP mapping start subframe.
  • the subframe with the same subframe number as the subframe in which the SCI is located is used as the TRP mapping start subframe, which is equivalent to the SCI subframe.
  • a subframe in which a fixed subframe interval is a period value is used as a TRP mapping start subframe;
  • Determining a TRP mapping start subframe according to a certain rule according to a SCI channel index for example, modulating a resource period for the SCI channel index, and determining the value as a subframe number of a TRP mapping start subframe, or The subframe interval between the subframe in which the SCI is located.
  • the TRP mapping start subframe is determined according to a predetermined rule according to the specific identifier information such as the UE ID of the sender/receiver, the group ID, the service type sequence number, and the control channel resource index number.
  • the UE ID is modulo to a fixed value, and the obtained value is used as the subframe number of the TRP mapping start subframe, or as the subframe interval between the TRP mapping start subframe and the corresponding SCI subframe.
  • the indication information is included in the DCI of the data channel resource of the eNB scheduling indication transmitting UE, or the transmitting UE indicates the data channel to the receiving UE.
  • the resource's control indication information (such as SCI).
  • the data channel subframe indicates a subframe that can be used to transmit a data packet, and is not limited to transmitting other signals and information in the same subframe, that is, the data channel subframe can also be used as another channel resource subframe. .
  • a plurality of data channel subframes indicated according to the TRP may be used for transmission and/or retransmission of one or more data packets, and therefore, based on the TRP indicating the data channel subframe, further definitions are required
  • a scheme of data packet transmission on a data channel subframe may be used for transmission and/or retransmission of one or more data packets, and therefore, based on the TRP indicating the data channel subframe, further definitions are required.
  • the system pre-defined the number of fixed data packet transmissions or retransmissions.
  • the UE transmits the data packets to be transmitted in sequence according to the number of transmissions or retransmissions defined by the system in one or more data channel subframes indicated by the TRP.
  • the number of transmissions of each data packet is 2, initial transmission and one retransmission, and the UE sequentially transmits the first transmission of the data packet in sequence according to the subframe indicated by the TRP. Retransmission.
  • the same or different transmission or retransmission times can be defined for different application scenarios or systems.
  • the number of times of data packet transmission or retransmission is indicated by the network side device through high layer signaling or physical layer signaling.
  • the network side device may use the SIB or RRC message to indicate the corresponding number of data packet transmission or retransmission times.
  • the corresponding DCI signaling is used to indicate the data packet transmission or heavy use. Number of passes.
  • the number of data packet transmissions or retransmissions is indicated by the D2D/V2V UE through higher layer signaling or physical layer signaling.
  • the UE may use the RRC message to indicate the corresponding number of data packet transmission or retransmission times to the receiving end UE.
  • the UE uses the corresponding control signaling (such as SCI) to indicate the adopted The number of packet transmissions or retransmissions.
  • Determining the corresponding number of data packet transmissions or retransmissions according to the service type of the data sent by the D2D/V2V UE. For example, when the data sent by the UE is a periodic, common service type, the number of transmissions is k1, and the data sent by the UE is used. When it is an event-triggered, burst, or emergency service type, the number of transmissions is k2.
  • the service type of the data may be determined according to the indication of the UE, the resource pool used, and the like.
  • the number of transmissions or retransmissions of each data packet can be determined according to the number of subframes m indicated by the TRP mapping and the number of data packets to be transmitted t.
  • mapping the number of mappings of the TRP-compatible bitmap sequence and the mapping start position indicating the data channel subframe can be used arbitrarily in a non-conflicting condition, which will be further described below by way of specific examples.
  • the network side device configures the periodic resource pool through high-level signaling.
  • the fixed mapping number of the system predefined TRP bitmap sequence is 2 times, and the mapping start subframe of the predefined TRP is the first sub-period in the period.
  • the corresponding TRP bitmap sequence mapping indicates the effect of the data channel subframe.
  • FIG. 8 is a schematic diagram 1 of the data channel subframe indicated by the TRP bitmap sequence mapping number and the starting position according to a preferred embodiment of the present invention. As shown in FIG. 8, according to the indicated TRP index, it can be determined that the corresponding bitmap sequence is "1110 0000", and in a resource pool period, the bitmap sequence is mapped from the first subframe, and the mapping is indicated twice. Correspondingly, 6 subframes are indicated as data channel subframes. can watch By means of the predefined settings of the system, the effective mapping of the TRP indication can be realized without any signaling indication.
  • the network side device configures a periodic resource pool through high layer signaling.
  • the system sets different TRP bitmap sequence mapping times and mapping start subframes for different groups.
  • FIG. 9 is a schematic diagram 2 of a data channel subframe indicated by a TRP bitmap sequence mapping number and a start position according to a preferred embodiment of the present invention.
  • Group A uses 2 bitmap mapping times, and the mapped starting subframe is relative to the period.
  • the first subframe offset is equal to 4 subframes
  • the group B adopts 1 bitmap mapping
  • the mapped starting subframe is a subframe equal to 15 with respect to the first subframe of the period, and is in the same TRP bitmap.
  • the effect of the data channel subframe indicated by the TRP in the group A and the group B is different, as shown in FIG.
  • the network side device configures different control channel resource pools for different service types of information transmission through high layer signaling, and sets different TRP bitmap sequence mapping times and mapping start subframes for different resource pools. And the number of packet transmissions.
  • the resource pool A is used to carry control information of the periodic service, and the TRP corresponding to the data channel subframe is mapped once, and the initial subframe of the mapping is the first one in the next cycle after the period in which the corresponding SCI information is located.
  • the number of times of data packet transmission is 2;
  • the resource pool B is used to carry the control information of the triggered service, and the TRP corresponding to the data channel subframe is mapped twice, and the initial subframe of the mapping is where the corresponding SCI information is located.
  • the sub-frame is fixed with +4ms subframes, and the number of data packet transmissions is four.
  • FIG. 10 is a schematic diagram of a data channel subframe configuration indicated by a TRP bitmap sequence mapping number, a start position, and a data packet transmission number according to a preferred embodiment of the present invention.
  • the UE sends SCI information in the resource pool A, and the indicated TRP corresponds to the bitmap.
  • the sequence is "0010 0001”
  • the SCI information sent in the resource pool B indicates that the bitmap sequence corresponding to the TRP is "1100 0000”
  • the corresponding subframe indication and data transmission are as shown in FIG.
  • the system is configured to implicitly indicate the mapping start subframe of the corresponding TRP bitmap sequence according to the resource in which the SCI information is sent by the UE, and the implicitly indicated rule is to perform a modulo operation on the channel number of the resource where the SCI is located, and obtain the obtained value.
  • FIG. 11 is a schematic diagram 3 of a TRP bitmap sequence mapping number and a start position indication data channel subframe according to a preferred embodiment of the present invention.
  • the upper subframe number is the subframe of #5, that is, the sixth subframe in the period, as shown in FIG.
  • one or more data channel subframes are indicated on the data channel subframe by determining the number of mapping times of the subframe indication sequence corresponding to the time domain resource pattern index and/or the mapping start subframe.
  • the transmission and/or retransmission of one or more data packets solves the problem that the resource scheme in the D2D communication mode is not suitable for the delay, capacity, and the like of the V2V communication service, and satisfies the resource scheme in the V2V communication mode. Claim.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method of various embodiments of the present invention.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be configured to store program code for performing the following steps:
  • S1 indicating one or more data channel subframes by determining a mapping sequence of a subframe indication sequence corresponding to a time domain resource pattern index and/or a mapping start subframe;
  • 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 performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.
  • modules or steps of the present invention 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.
  • the invention is not limited to any specific combination of hardware and software.
  • the foregoing technical solution provided by the embodiment of the present invention may be applied to the indication process of the data channel subframe, by determining the number of mapping times of the subframe indication sequence corresponding to the time domain resource pattern index and/or mapping the start subframe, indicating one Or a plurality of data channel subframes, wherein one or more data packets are transmitted and/or retransmitted on the data channel subframe, which solves the delay and capacity that the resource scheme in the D2D communication mode is not applicable to the V2V communication service.
  • the problem of demand meets the requirements of the resource plan in the V2V communication mode.

Abstract

本发明提供了一种数据信道子帧的指示方法及装置,该方法包括:通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,在该一个或多个数据信道子帧上对一个或多个数据包进行传输和/或重传。通过上述技术方案,解决了D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,满足了V2V通信方式中的资源方案的要求。

Description

数据信道子帧的指示方法及装置 技术领域
本发明涉及通信领域,具体而言,涉及一种数据信道子帧的指示方法及装置。
背景技术
随着经济社会高速发展,中国汽车保有量迅速增长,道路交通事故频繁发生,已成为近年来影响我国公众安全感的重要因素之一。提升车辆安全的技术主要分为被动安全技术和主动安全技术。被动安全技术用于在事故发生后,对车内、车外人员及物品的保护;主动安全技术用于防止和减少车辆发生事故,避免人员受到伤害。主动安全技术是现代车辆安全技术发展的重点和趋势。
车联网系统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(Vehicle to Vehicle,简称为V2V)、车与人(Vehicle to Person,简称为V2P)、车与基础设施(Vehicle to Infrastructure,简称为V2I)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系统。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,基于长期演进系统(Long Term Evolution,简称为LTE)技术来解决车联网通信是热点研究之一。其中,在LTE系统的设备到设备(Device to Device,简称为D2D)通信方式中,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是根据相关技术中的D2D通信结构的示意图,如图1所示,这种通信模式具有明显区别于传统蜂窝系统通信模式的特征,对于车联网的V2V通信来说,车与车之间的近距离通信可以应用D2D通信方式,达到节省了无线频谱资源,降低了核心网的数据传输压力,能够减少系统资源占用,增加蜂窝通信系统频谱效率,降低终端发射功耗,并在很大程度上节省网络运营成本等效果。
V2V通信系统一方面可以作为一种D2D通信方式的特殊应用,V2V UE可以采用D2D之间的直接通信方式进行数据的传输,但另一方面,D2D通信方式中的资源方案不完全适用于V2V通信业务的时延、容量等需求。
针对相关技术中,D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,目前还没有有效的解决方案。
发明内容
本发明实施例提供了一种数据信道子帧的指示方法及装置,以至少解决D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题。
根据本发明的一个实施例,提供了一种数据信道子帧的指示方法,包括:
通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,
在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
进一步地,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧包括:
根据所述时域资源图样索引确定对应的子帧指示序列,所述子帧指示序列以位图bitmap方式一一对应指示N个子帧是否为数据信道子帧,其中,N为bitmap序列长度,所述bitmap序列向所述N个子帧的指示为一次映射,所述子帧指示序列的映射次数为所述bitmap序列向所述子帧指示的次数;
所述子帧指示序列的映射起始子帧为所述bitmap序列向子帧进行映射指示时,指示的第一个子帧,其中,N为正整数。
进一步地,在所述数据信道子帧上对一个或多个数据包进行传输或者重传之前,所述方法还包括:
确定所述数据包的传输次数或重传次数,其中,依据所述传输次数或所述重传次数,在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
进一步地,确定所述子帧指示序列的映射次数和/或映射起始子帧的方式,和/或,确定所述数据包的传输次数或重传次数的方式,包括以下至少之一:
系统预定义;
根据用户设备群组确定;
根据所使用的资源池确定;
网络侧设备通过高层信令和/或物理层信令指示;
用户设备通过高层信令和/或物理层信令指示;
根据待传输的数据包的业务类型确定。
进一步地,由所述系统预定义的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,由所述系统预定义的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
由系统预定义固定数值作为所述子帧指示序列的映射次数;
由系统预定义固定子帧作为所述子帧指示序列的映射起始子帧;
由系统预定义固定数值作为所述数据包传输次数或重传次数。
进一步地,所述根据用户设备群组确定的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备群组确定的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射次数;
根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射起始子帧;
根据用户设备所属的群组确定所述群组使用的所述数据包的传输或重传次数。
进一步地,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射次数包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射次数;
进一步地,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射起始子帧包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射起始子帧;
进一步地,所述根据所使用的资源池确定的的方式确定所述数据包的传输次数或重传次数,包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述数据包的传输或重传次数。
进一步地,所述网络侧设备通过高层信令和/或物理层信令指示的方式,确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述网络侧设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示的方式包括以下至少之一:
通过所述高层信令指示时,所述网络侧设备通过系统广播消息和/或无线资源控制RRC消息指示;
通过所述物理层信令指示时,所述网络侧设备通过下行控制信息DCI信令指示。
进一步地,所述用户设备通过高层信令和/或物理层信令指示的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示方式包括以下至少之一:
通过所述高层信令指示时,所述用户设备通过RRC消息指示;
通过所述物理层信令指示时,所述用户设备通过边链路控制信息SCI信令指示。
进一步地,通过所述高层信令和/或所述物理层信令确定所述子帧指示序列的映射起始子帧时,通过指示子帧的偏移量和/或子帧号指示所述子帧指示序列的映射起始子帧,其中,
所述偏移量为所述子帧指示序列的映射起始子帧相对于资源周期边界的子帧偏移;或者,
所述偏移量为所述子帧指示序列的映射起始子帧与控制信息所在的子帧之间的子帧偏移;
所述子帧号为周期内的顺序子帧号;或者,
所述子帧号为物理子帧号;或者,
所述子帧号为资源池中的逻辑顺序子帧号。
进一步地,所述根据待传输的数据包的业务类型确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,确定所述数据包的传输次数或重传次数,其中,所述数据包的业务类型的确定方式包括以下至少之一:
所述数据包的业务类型根据所述用户设备的指示确定;
所述数据包的业务类型所述用户设备使用的资源池确定。
进一步地,确定所述子帧指示序列的映射起始子帧的方式为,根据与控制信息所在的控制信道资源之间的关系确定所述子帧指示序列的映射起始子帧,所述与控制信道资源之间的关系包括以下至少之一:
所述子帧指示序列的映射起始子帧与所述控制信息所在子帧之间为固定子帧间隔;
所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内的第一个子帧;
所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内,与所述控制信息所在子帧相同子帧序号的子帧;
根据所述控制信息所在的所述控制信道索引号,按预定的规则确定所述子帧指示序列的映射起始子帧。
进一步地,确定所述子帧指示序列的映射起始子帧的方式为,根据标识信息确定所述子帧指示序列的映射起始子帧,所述标识信息包括以下至少之一:
根据用户设备标识ID、用户设备群组标识ID、数据包的业务类型序号、控制信道资源索引号;
根据所述标识信息按照预定义规则确定所述子帧指示序列的映射起始子帧。
进一步地,根据所述标识信息确定所述子帧指示序列的映射起始子帧的方法包括:
将所述标识信息对固定数值取模或取余,所得数值作为所述子帧指示序列的映射起始子帧的子帧号,或者,作为所述映射起始子帧与所述控制信息所在的子帧之间的子帧间隔。
进一步地,确定所述数据包的传输次数或重传次数包括:
根据所述子帧指示序列指示出的子帧数量m以及待传输的数据包数量t确定每个数据包的传输或重传次数,所述数据包的传输次数为:
Figure PCTCN2017070969-appb-000001
X为所述数据包的传输次数,Y为重传次数,
Figure PCTCN2017070969-appb-000002
为向下取整,X、Y、m和t均为正整数。
进一步地,所述网络侧设备包括以下至少之一: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。
进一步地,通过所述子帧指示序列指示所述数据信道子帧,其中,可指示的所述数据信道子帧为实际物理子帧,或者为专用数据信道子帧,或者为逻辑连续的专用子帧。
根据本发明的另一个实施例,还提供了一种数据信道子帧的指示装置,包括:
指示模块,设置为通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,
发送模块,设置为在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
进一步地,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧包括:
根据所述时域资源图样索引确定对应的子帧指示序列,所述子帧指示序列以位图bitmap方式一一对应指示N个子帧是否为数据信道子帧,其中,N为bitmap序列长度,所述bitmap序列向所述N个子帧的指示为一次映射,所述子帧指示序列的映射次数为所述bitmap序列向所述子帧指示的次数;
所述子帧指示序列的映射起始子帧为所述bitmap序列向子帧进行映射指示时,指示的第一个子帧,其中,N为正整数。
进一步地,在所述数据信道子帧上对一个或多个数据包进行传输或者重传之前,还包括:
确定所述数据包的传输次数或重传次数,其中,依据所述传输次数或所述重传次数,在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
进一步地,确定所述子帧指示序列的映射次数和/或映射起始子帧的方式,和/或,确定所述数据包的传输次数或重传次数的方式,包括以下至少之一:
系统预定义;
根据用户设备群组确定;
根据所使用的资源池确定;
网络侧设备通过高层信令和/或物理层信令指示;
用户设备通过高层信令和/或物理层信令指示;
根据待传输的数据包的业务类型确定。
进一步地,由所述系统预定义的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,由所述系统预定义的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
由系统预定义固定数值作为所述子帧指示序列的映射次数;
由系统预定义固定子帧作为所述子帧指示序列的映射起始子帧;
由系统预定义固定数值作为所述数据包传输次数或重传次数。
进一步地,所述根据用户设备群组确定的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备群组确定的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射次数;
根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射起始子帧;
根据用户设备所属的群组确定所述群组使用的所述数据包的传输或重传次数。
进一步地,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射次数包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射次数;
进一步地,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射起始子帧包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射起始子帧;
进一步地,所述根据所使用的资源池确定的的方式确定所述数据包的传输次数或重传次数,包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述数据包的传输或重传次数。
进一步地,所述网络侧设备通过高层信令和/或物理层信令指示的方式,确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述网络侧设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示的方式包括以下至少之一:
通过所述高层信令指示时,所述网络侧设备通过系统广播消息和/或无线资源控制RRC消息指示;
通过所述物理层信令指示时,所述网络侧设备通过下行控制信息DCI信令指示。
进一步地,所述用户设备通过高层信令和/或物理层信令指示的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示方式包括以下至少之一:
通过所述高层信令指示时,所述用户设备通过RRC消息指示;
通过所述物理层信令指示时,所述用户设备通过边链路控制信息SCI信令指示。
进一步地,通过所述高层信令和/或所述物理层信令确定所述子帧指示序列的映射起始子帧时,通过指示子帧的偏移量和/或子帧号指示所述子帧指示序列的映射起始子帧,其中,
所述偏移量为所述子帧指示序列的映射起始子帧相对于资源周期边界的子帧偏移;或者,
所述偏移量为所述子帧指示序列的映射起始子帧与控制信息所在的子帧之间的子帧偏移;
所述子帧号为周期内的顺序子帧号;或者,
所述子帧号为物理子帧号;或者,
所述子帧号为资源池中的逻辑顺序子帧号。
进一步地,所述根据待传输的数据包的业务类型确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,确定所述数据包的传输次数或重传次数,其中,所述数据包的业务类型的确定方式包括以下至少之一:
所述数据包的业务类型根据所述用户设备的指示确定;
所述数据包的业务类型所述用户设备使用的资源池确定。
进一步地,确定所述子帧指示序列的映射起始子帧的方式为,根据与控制信息所在的控制信道资源之间的关系确定所述子帧指示序列的映射起始子帧,所述与控制信道资源之间的关系包括以下至少之一:
所述子帧指示序列的映射起始子帧与所述控制信息所在子帧之间为固定子帧间隔;
所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内的第一个子帧;
所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当 前周期之后的下一个周期内,与所述控制信息所在子帧相同子帧序号的子帧;
根据所述控制信息所在的所述控制信道索引号,按预定的规则确定所述子帧指示序列的映射起始子帧。
进一步地,确定所述子帧指示序列的映射起始子帧的方式为根据标识信息确定所述子帧指示序列的映射起始子帧,所述标识信息包括以下至少之一:
根据用户设备标识ID、用户设备群组标识ID、数据包的业务类型序号、控制信道资源索引号;
根据所述标识信息按照预定义规则确定所述子帧指示序列的映射起始子帧。
进一步地,根据所述标识信息确定所述子帧指示序列的映射起始子帧的方法包括:
将所述标识信息对固定数值取模或取余,所得数值作为所述子帧指示序列的映射起始子帧的子帧号,或者,作为所述映射起始子帧与所述控制信息所在的子帧之间的子帧间隔。
进一步地,确定所述数据包的传输次数或重传次数包括:
根据所述子帧指示序列指示出的子帧数量m以及待传输的数据包数量t确定每个数据包的传输或重传次数,所述数据包的传输次数为:
Figure PCTCN2017070969-appb-000003
X为所述数据包的传输次数,Y为重传次数,
Figure PCTCN2017070969-appb-000004
为向下取整,X、Y、m和t均为正整数。
进一步地,所述网络侧设备包括以下至少之一: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。
进一步地,通过所述子帧指示序列指示所述数据信道子帧,其中,可指示的所述数据信道子帧为实际物理子帧,或者为专用数据信道子帧,或者为逻辑连续的专用子帧。
在本发明实施例中,还提供了一种计算机存储介质,该计算机存储介质可以存储有执行指令,该执行指令用于执行上述实施例中的数据信道子帧的指示方法的实现。
通过本发明实施例,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,在该数据信道子帧上对一个或多个数据包进行传输和/或重传,解决了D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,满足了V2V通信方式中的资源方案的要求。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示 意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是根据相关技术中的D2D通信结构的示意图;
图2是根据本发明实施例的一种数据信道子帧的指示方法的流程图;
图3是根据本发明实施例的一种数据信道子帧的指示装置的结构框图;
图4是根据相关技术中的LTE系统帧结构的示意图;
图5是根据相关技术中的LTE系统资源块RB结构的示意图;
图6是根据相关技术中的LTE D2D系统中TRP bitmap重复映射指示PSSCH子帧的示意图;
图7是根据相关技术中的LTE D2D系统中基于PSSCH资源池进行TRP bitmap重复映射指示PSSCH子帧的示意图;
图8是根据本发明优选实施例的通过TRP bitmap序列映射次数及起始位置指示数据信道子帧的示意图一;
图9是根据本发明优选实施例的通过TRP bitmap序列映射次数及起始位置指示数据信道子帧的示意图二;
图10是根据本发明优选实施例的通过TRP bitmap序列映射次数、起始位置、数据包传输次数指示数据信道子帧配置的示意图;
图11是根据本发明优选实施例的通过TRP bitmap序列映射次数及起始位置指示数据信道子帧的示意图三。
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发明。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,本发明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。
在本实施例中提供了一种数据信道子帧的指示方法,图2是根据本发明实施例的一种数据信道子帧的指示方法的流程图,如图2所示,该流程包括如下步骤:
步骤S202,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧;
步骤S204,在该一个或多个数据信道子帧上对一个或多个数据包进行传输和/或重传。
通过上述步骤,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射 起始子帧,指示一个或多个数据信道子帧,在一个或多个数据信道子帧上对一个或多个数据包进行传输和/或重传,解决了D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,满足了V2V通信方式中的资源方案的要求。
在本发明的实施例中,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧包括:
根据该时域资源图样索引确定对应的子帧指示序列,该子帧指示序列以位图bitmap方式一一对应指示N个子帧是否为数据信道子帧,其中,N为bitmap序列长度,该bitmap序列向该N个子帧的指示为一次映射,该子帧指示序列的映射次数为该bitmap序列向该子帧指示的次数;
该子帧指示序列的映射起始子帧为该bitmap序列向子帧进行映射指示时,指示的第一个子帧,其中,N为正整数。
在本发明的实施例中,在该数据信道子帧上对一个或多个数据包进行传输或者重传之前,该方法还包括:
确定该数据包的传输次数或重传次数,其中,依据该传输次数或该重传次数,在该数据信道子帧上对一个或多个数据包进行传输和/或重传。
在本发明的实施例中,确定该子帧指示序列的映射次数和/或映射起始子帧的方式,和/或,确定该数据包的传输次数或重传次数的方式,包括以下至少之一:
系统预定义;
根据用户设备群组确定;
根据所使用的资源池确定;
网络侧设备通过高层信令和/或物理层信令指示;
用户设备通过高层信令和/或物理层信令指示;
根据待传输的数据包的业务类型确定。
在本发明的实施例中,由该系统预定义的方式确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,由该系统预定义的方式确定该数据包的传输次数或重传次数,包括以下至少之一:
由系统预定义固定数值作为该子帧指示序列的映射次数;
由系统预定义固定子帧作为该子帧指示序列的映射起始子帧;
由系统预定义固定数值作为该数据包传输次数或重传次数。
在本发明的实施例中,该根据用户设备群组确定的方式确定该子帧指示序列的映射次数 和/或映射起始子帧,和/或,根据该用户设备群组确定的方式确定该数据包的传输次数或重传次数,包括以下至少之一:
根据用户设备所属的群组确定该群组使用的该子帧指示序列的映射次数;
根据用户设备所属的群组确定该群组使用的该子帧指示序列的映射起始子帧;
根据用户设备所属的群组确定该群组使用的该数据包的传输或重传次数。
在本发明的实施例中,该根据所使用的资源池确定的方式确定该子帧指示序列的映射次数包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定该子帧指示序列的映射次数;
在本发明的实施例中,该根据所使用的资源池确定的方式确定该子帧指示序列的映射起始子帧包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定该子帧指示序列的映射起始子帧;
在本发明的实施例中,该根据所使用的资源池确定的的方式确定该数据包的传输次数或重传次数,包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定该数据包的传输或重传次数。
在本发明的实施例中,该网络侧设备通过高层信令和/或物理层信令指示的方式,确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,根据该网络侧设备通过高层信令和/或物理层信令指示的方式确定该数据包的传输次数或重传次数,该指示的方式包括以下至少之一:
通过该高层信令指示时,该网络侧设备通过系统广播消息和/或无线资源控制RRC消息指示;
通过该物理层信令指示时,该网络侧设备通过下行控制信息DCI信令指示。
在本发明的实施例中,该用户设备通过高层信令和/或物理层信令指示的方式确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,根据该用户设备通过高层信令和/或物理层信令指示的方式确定该数据包的传输次数或重传次数,该指示方式包括以下至少之一:
通过该高层信令指示时,该用户设备通过RRC消息指示;
通过该物理层信令指示时,该用户设备通过边链路控制信息SCI信令指示。
在本发明的实施例中,通过该高层信令和/或该物理层信令确定该子帧指示序列的映射起始子帧时,通过指示子帧的偏移量和/或子帧号指示该子帧指示序列的映射起始子帧,其中,
该偏移量为该子帧指示序列的映射起始子帧相对于资源周期边界的子帧偏移;或者,
该偏移量为该子帧指示序列的映射起始子帧与控制信息所在的子帧之间的子帧偏移;
该子帧号为周期内的顺序子帧号;或者,
该子帧号为物理子帧号;或者,
该子帧号为资源池中的逻辑顺序子帧号。
在本发明的实施例中,该根据待传输的数据包的业务类型确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,确定该数据包的传输次数或重传次数,其中,该数据包的业务类型的确定方式包括以下至少之一:
该数据包的业务类型根据该用户设备的指示确定;
该数据包的业务类型该用户设备使用的资源池确定。
在本发明的实施例中,确定该子帧指示序列的映射起始子帧的方式为,根据与控制信息所在的控制信道资源之间的关系确定该子帧指示序列的映射起始子帧,该与控制信道资源之间的关系包括以下至少之一:
该子帧指示序列的映射起始子帧与该控制信息所在子帧之间为固定子帧间隔;
该控制信息所在子帧的周期为当前周期,该子帧指示序列的映射起始子帧为该当前周期之后的下一个周期内的第一个子帧;
该控制信息所在子帧的周期为当前周期,该子帧指示序列的映射起始子帧为该当前周期之后的下一个周期内,与该控制信息所在子帧相同子帧序号的子帧;
根据该控制信息所在的该控制信道索引号,按预定的规则确定该子帧指示序列的映射起始子帧。
在本发明的实施例中,确定该子帧指示序列的映射起始子帧的方式为,根据标识信息确定该子帧指示序列的映射起始子帧,该标识信息包括以下至少之一:
根据用户设备标识ID、用户设备群组标识ID、数据包的业务类型序号、控制信道资源索引号;
根据该标识信息按照预定义规则确定该子帧指示序列的映射起始子帧。
在本发明的实施例中,根据该标识信息确定该子帧指示序列的映射起始子帧的方法包括:
将该标识信息对固定数值取模或取余,所得数值作为该子帧指示序列的映射起始子帧的子帧号,或者,作为该映射起始子帧与该控制信息所在的子帧之间的子帧间隔。
在本发明的实施例中,确定该数据包的传输次数或重传次数包括:
根据该子帧指示序列指示出的子帧数量m以及待传输的数据包数量t确定每个数据包的传输或重传次数,该数据包的传输次数为:
Figure PCTCN2017070969-appb-000005
X为该数据包的传输次数,Y为重传次数,
Figure PCTCN2017070969-appb-000006
为向下取整,X、Y、m和t均为正整数。
在本发明的实施例中,该网络侧设备包括以下至少之一: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。
在本实施例中还提供了一种数据信道子帧的指示装置,该装置用于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3是根据本发明实施例的一种数据信道子帧的指示装置的结构框图,如图3所示,该装置包括:
指示模块32,设置为通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,
发送模块34,与指示模块32设置为在该数据信道子帧上对一个或多个数据包进行传输和/或重传。
在本发明的实施例中,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧包括:
根据该时域资源图样索引确定对应的子帧指示序列,该子帧指示序列以位图bitmap方式一一对应指示N个子帧是否为数据信道子帧,其中,N为bitmap序列长度,该bitmap序列向该N个子帧的指示为一次映射,该子帧指示序列的映射次数为该bitmap序列向该子帧指示的次数;
该子帧指示序列的映射起始子帧为该bitmap序列向子帧进行映射指示时,指示的第一个子帧,其中,N为正整数。
在本发明的实施例中,在该数据信道子帧上对一个或多个数据包进行传输或者重传之前,还包括:
确定该数据包的传输次数或重传次数,其中,依据该传输次数或该重传次数,在该数据信道子帧上对一个或多个数据包进行传输和/或重传。
在本发明的实施例中,确定该子帧指示序列的映射次数和/或映射起始子帧的方式,和/或,确定该数据包的传输次数或重传次数的方式,包括以下至少之一:
系统预定义;
根据用户设备群组确定;
根据所使用的资源池确定;
网络侧设备通过高层信令和/或物理层信令指示;
用户设备通过高层信令和/或物理层信令指示;
根据待传输的数据包的业务类型确定。
在本发明的实施例中,由该系统预定义的方式确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,由该系统预定义的方式确定该数据包的传输次数或重传次数,包括以下至少之一:
由系统预定义固定数值作为该子帧指示序列的映射次数;
由系统预定义固定子帧作为该子帧指示序列的映射起始子帧;
由系统预定义固定数值作为该数据包传输次数或重传次数。
在本发明的实施例中,该根据用户设备群组确定的方式确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,根据该用户设备群组确定的方式确定该数据包的传输次数或重传次数,包括以下至少之一:
根据用户设备所属的群组确定该群组使用的该子帧指示序列的映射次数;
根据用户设备所属的群组确定该群组使用的该子帧指示序列的映射起始子帧;
根据用户设备所属的群组确定该群组使用的该数据包的传输或重传次数。
在本发明的实施例中,该根据所使用的资源池确定的方式确定该子帧指示序列的映射次数包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定该子帧指示序列的映射次数;
在本发明的实施例中,该根据所使用的资源池确定的方式确定该子帧指示序列的映射起始子帧包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定该子帧指示序列的映射起始子帧;
在本发明的实施例中,该根据所使用的资源池确定的的方式确定该数据包的传输次数或重传次数,包括:
根据用户设备使用的控制信道资源池和/或数据信道资源池,确定该数据包的传输或重传 次数。
在本发明的实施例中,该网络侧设备通过高层信令和/或物理层信令指示的方式,确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,根据该网络侧设备通过高层信令和/或物理层信令指示的方式确定该数据包的传输次数或重传次数,该指示的方式包括以下至少之一:
通过该高层信令指示时,该网络侧设备通过系统广播消息和/或无线资源控制RRC消息指示;
通过该物理层信令指示时,该网络侧设备通过下行控制信息DCI信令指示。
在本发明的实施例中,该用户设备通过高层信令和/或物理层信令指示的方式确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,根据该用户设备通过高层信令和/或物理层信令指示的方式确定该数据包的传输次数或重传次数,该指示方式包括以下至少之一:
通过该高层信令指示时,该用户设备通过RRC消息指示;
通过该物理层信令指示时,该用户设备通过边链路控制信息SCI信令指示。
在本发明的实施例中,通过该高层信令和/或该物理层信令确定该子帧指示序列的映射起始子帧时,通过指示子帧的偏移量和/或子帧号指示该子帧指示序列的映射起始子帧,其中,
该偏移量为该子帧指示序列的映射起始子帧相对于资源周期边界的子帧偏移;或者,
该偏移量为该子帧指示序列的映射起始子帧与控制信息所在的子帧之间的子帧偏移;
该子帧号为周期内的顺序子帧号;或者,
该子帧号为物理子帧号;或者,
该子帧号为资源池中的逻辑顺序子帧号。
在本发明的实施例中,该根据待传输的数据包的业务类型确定该子帧指示序列的映射次数和/或映射起始子帧,和/或,确定该数据包的传输次数或重传次数,其中,该数据包的业务类型的确定方式包括以下至少之一:
该数据包的业务类型根据该用户设备的指示确定;
该数据包的业务类型该用户设备使用的资源池确定。
在本发明的实施例中,确定该子帧指示序列的映射起始子帧的方式为,根据与控制信息所在的控制信道资源之间的关系确定该子帧指示序列的映射起始子帧,该与控制信道资源之间的关系包括以下至少之一:
该子帧指示序列的映射起始子帧与该控制信息所在子帧之间为固定子帧间隔;
该控制信息所在子帧的周期为当前周期,该子帧指示序列的映射起始子帧为该当前周期之后的下一个周期内的第一个子帧;
该控制信息所在子帧的周期为当前周期,该子帧指示序列的映射起始子帧为该当前周期之后的下一个周期内,与该控制信息所在子帧相同子帧序号的子帧;
根据该控制信息所在的该控制信道索引号,按预定的规则确定该子帧指示序列的映射起始子帧。
在本发明的实施例中,确定该子帧指示序列的映射起始子帧的方式为根据标识信息确定该子帧指示序列的映射起始子帧,该标识信息包括以下至少之一:
根据用户设备标识ID、用户设备群组标识ID、数据包的业务类型序号、控制信道资源索引号;
根据该标识信息按照预定义规则确定该子帧指示序列的映射起始子帧。
在本发明的实施例中,根据该标识信息确定该子帧指示序列的映射起始子帧的方法包括:
将该标识信息对固定数值取模或取余,所得数值作为该子帧指示序列的映射起始子帧的子帧号,或者,作为该映射起始子帧与该控制信息所在的子帧之间的子帧间隔。
在本发明的实施例中,确定该数据包的传输次数或重传次数包括:
根据该子帧指示序列指示出的子帧数量m以及待传输的数据包数量t确定每个数据包的传输或重传次数,该数据包的传输次数为:
Figure PCTCN2017070969-appb-000007
X为该数据包的传输次数,Y为重传次数,
Figure PCTCN2017070969-appb-000008
为向下取整,X、Y、m和t均为正整数。
在本发明的实施例中,该网络侧设备包括以下至少之一: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。
在本发明的实施例中,通过该子帧指示序列指示该数据信道子帧,其中,可指示的该数据信道子帧为实际物理子帧,或者为专用数据信道子帧,或者为逻辑连续的专用子帧。
通过本发明,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,在该数据信道子帧上对一个或多个数据包进行传输和/或重传,解决了D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,满足了V2V通信方式中的资源方案的要求。
下面结合优选实施例和实施方式对本发明进行详细说明。
本发明的优选实施例提出了一种数据信道子帧的指示方法及设备,通过确定时域资源图样的映射次数、起始子帧,指示所使用的数据信道子帧,以及在所指示出的子帧上发送数据包的方式,达到灵活指示数据信道子帧,适应业务需求,提高信道资源利用率以及数据传输 速率的效果。
网络侧设备包括以下实体中的一种或多种:演进型基站(evolved NodeB,简称为eNB)、中继站(Relay Node,简称为RN)、小区协作实体(Multi-cell Coordination Entity,简称为MCE)、网关(GateWay,简称为GW)、移动性管理实体(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,下面以eNB作为网络侧设备实体为例进行说明。
在传统的蜂窝通信系统中,UE的无线资源由演进型基站eNB(evolved NodeB)统一控制调度,eNB指示UE所配置的下行或上行资源,UE按照eNB的配置指示在相应的下行资源上接收eNB发射的数据信号,或者在上行资源上向eNB发射信号。在LTE系统中,无线资源在时域上以无线帧为单位划分资源,每个无线帧为10ms,包含10个子帧。每个子帧为1ms,分为0.5ms的2个时隙slot,如图4所示,是LTE系统帧结构的示意图。在频域上,以子载波为单位划分资源,每个子载波包含15kHz或7.5kHz资源。按照上述时域和频域资源单位,eNB为UE调度时频资源的最小单位为资源块(Resource Block,简称为RB),RB定义为在时域上为1个slot,在频域上为连续的
Figure PCTCN2017070969-appb-000009
个子载波,
Figure PCTCN2017070969-appb-000010
如图5所示,图5是LTE系统资源块RB结构的示意图。eNB可以灵活地根据UE需求动态调度配置所需的时频域资源。
基于LTE的D2D通信系统中,使用系统上行子帧作为物理边链路共享信道(Physical Sidelink Shared Channel,简称为PSSCH)子帧,用于传输D2D数据,有D2D数据待发送的D2D发送端UE可以从eNB获得PSSCH子帧配置,或者在系统预定义的资源池中选择一定的子帧作为PSSCH子帧,eNB向发送端UE配置指示PSSCH子帧,或者发送端UE向接收端UE指示所使用的PSSCH子帧,采用时域资源图样TRP(Time Resource Pattern)指示所使用的一个或多个PSSCH子帧。
eNB使用下行控制信息(Downlink Control Information,简称为DCI)格式(format)5(D2D资源调度指示专用控制信息格式)向发送端UE指示TRP,发送端UE在边链路(即D2D链路)控制信息(Sidelink Control Information,简称为SCI)中指示TRP。指示的TRP为7bit信息,表示一个TRP index,每个TRP index对应于唯一的一个bitmap序列,bitmap序列的长度为N,N=6,7,8,其中有效指示位数k,即bitmap序列中标识为“1”的位数,例如“1111 0000”即为一个N=8,k=4的bitmap序列。根据TRP index所指示的bitmap序列,bit位标识为“1”的对应子帧即指示为PSSCH子帧,bitmap序列在D2D资源周期内循环重复,达到对整个周期内的子帧配置指示,如图6所示,是LTE D2D系统中TRP bitmap重复映射指示PSSCH子帧的示意图。当存在PSSCH资源池配置时,TRP指示出的bitmap序列在资源池包含的逻辑连续的子帧上进行一一对应指示,如图7所示,是LTE D2D系统中基于PSSCH资源池进行TRP bitmap重复映射指示PSSCH子帧的示意图。在本发明的实施例中,通过确定TRP映射次数及映射起始子帧指示数据信道子帧时,对TRP bitmap序列向子帧的映射也同样适用于对实际物理子帧的直接映射指示,以及基于逻辑子帧集合的映射指示,其中,逻辑子帧为系统配置的用于传输数据信息的专用子帧,或者为专用系统配置的专用子帧,例如V2V 专用子帧等,下面不再一一说明。
可以看到,通过D2D通信中的TRP方案指示PSSCH子帧时,TRP index对应的bitmap序列从起始映射位置开始与相应的子帧一一对应映射,并在资源池周期内重复映射,直到周期结束,可以指示出一个或多个PSSCH子帧,用于承载D2D数据信息。
对于V2V通信,数据信道资源可以采用PSSCH资源池的配置方案,或者采用新定义的资源池方案,但TRP指示对相应的数据信道子帧的指示方法需要新的规则及方法,本发明提出了一种V2V通信中通过TRP指示数据信道子帧的方法,具体方法包括:
方法一:确定TRP对应的bitmap序列映射次数
通过确定TRP index对应的bitmap序列在可用子帧上的映射次数,可以实现对数据信道子帧data subframe数量的灵活控制,达到根据业务的需求相应调整TRP指示出的数据信道子帧数量的作用,解决TRP方案应用于V2X系统中时指示的子帧数量控制的问题。
确定TRP对应的bitmap序列对应于数据信道子帧的映射次数的方式包括:
1、系统预定义值:
由系统预定义某固定值,作为对应的应用场景或系统中TRP bitmap序列的映射次数,取值正整数。这里应用的场景或系统包括D2D或V2V应用场景或系统。系统预定义的固定值为所有D2D/V2V UE公共已知信息,不需要信令指示,由D2D/V2V UE根据预定义值,对TRP bitmap序列进行映射指示,使用所指示出的数据子帧。
另外,针对不同的应用场景或系统可定义相同或不同的TRP映射次数。
例如,系统预定义在V2V场景中,用于指示数据子帧的TRP bitmap序列固定映射t次,t取值为1或2或3或4。
2、根据群组确定:
根据不同的D2D/V2V UE群组,可以使用不同的TRP映射次数值。D2D/V2V UE群组可根据UE的业务需求、UE属性、UE位置、UE能力、系统设置等因素划分,在不同的群组,可采用相同或不同的TRP映射次数,以满足实际需求。
3、根据资源池确定:
根据采用的控制信道资源池(如PSCCH资源池,SCI资源池),或者数据信道资源池(如PSSCH资源池)确定相应的TRP映射次数。每个资源池有唯一对应的TRP映射次数取值。
当系统中存在多个资源池配置时,各个资源池上使用的TRP映射次数可以相同或不同。
4、由网络侧设备指示:
由网络侧设备通过高层信令或物理层信令指示所使用的TRP映射次数。
通过高层信令指示时,网络侧设备可采用系统广播消息(系统信息块,System Information Block,简称为SIB)或无线资源控制(Radio Resource Control,简称为RRC)消息指示相应的TRP映射次数,通过物理层信令指示时,采用相应的DCI信令指示所采用的TRP映射次数。
5、由UE指示:
由D2D/V2V UE通过高层信令或物理层信令指示所使用的TRP映射次数。
通过高层信令指示时,UE可采用RRC消息向接收端UE指示相应的TRP映射次数,通过物理层信令指示时,UE采用相应的控制信令(如SCI)指示所采用的TRP映射次数。
6、根据业务类型确定:
根据D2D/V2V UE发送的数据的业务类型确定所使用的TRP映射次数,例如,当UE发送的数据为周期性、普通业务类型时,采用TRP映射次数为s1,同时当UE发送的数据为事件触发型、突发型、紧急业务类型时,采用TRP映射次数为s2。数据的业务类型可根据UE的指示、使用的资源池等确定。
方法二,确定TRP对应的bitmap序列映射的起始子帧:
当所有UE指示的TRP对应的bitmap序列都以同一个的子帧作为映射的起始子帧时,则各个UE TRP指示出的数据信道子帧会比较集中,使数据信道子帧资源不能达到均衡使用,不利于资源的公平性。因此,对于TRP指示出的bitmap序列应定义映射起始子帧的规则,使TRP指示出的数据信道子帧资源得到更均匀、公平的使用,达到避免资源冲突,提高资源利用率,降低干扰等效果。
确定TRP指示出的bitmap序列映射的起始子帧的具体方式包括:
1、系统预定义:
由系统预定义某固定子帧,作为对应的应用场景或系统中TRP bitmap序列的映射起始子帧,这里应用的场景或系统包括D2D或V2V应用场景或系统。系统预定义的固定起始子帧为所有D2D/V2V UE公共已知信息,不需要信令指示。由D2D/V2V UE根据预定义设置,从起始子帧子帧开始对TRP bitmap序列进行映射指示,使用所指示出的数据子帧。
例如,当相应的应用场景或系统中定义了资源周期时,从时域上按一定周期划分资源,每个周期内包含一定数量的子帧,则系统可预定义TRP bitmap映射以周期的第一个子帧作为映射起始子帧,则根据指示的TRP确定的bitmap序列从资源周期的第一个子帧开始映射。这里,需要注意的是,当周期内第一个实际物理子帧可用于数据传输时,TRP映射从此子帧开始;当周期内的第一个物理子帧不能用于传输数据信息,则TRP bitmap从周期内的第一个子帧开始映射,这里的“第一个子帧”是指可用于传输数据的第一个子帧,即逻辑上的周期内“第一个可用子帧”。
另外,针对不同的应用场景或系统可定义相同或不同的TRP映射起始子帧。
2、根据群组确定:
根据不同的D2D/V2V UE群组,可以使用不同的TRP映射起始子帧。D2D/V2V UE群组可根据UE的业务需求、UE属性、UE位置、UE能力、系统设置等因素划分,在不同的群组,可采用相同或不同的TRP映射起始子帧,以满足实际需求。
3、由网络侧设备指示:
由网络侧设备通过高层信令或物理层信令指示所使用的TRP映射起始子帧。
通过高层信令指示时,网络侧设备可采用SIB或RRC消息指示相应的TRP映射起始子帧,通过物理层信令指示时,采用相应的DCI信令指示所采用的TRP映射起始子帧。
4、由UE指示:
由D2D/V2V UE通过高层信令或物理层信令指示所使用的TRP映射起始子帧。
通过高层信令指示时,UE可采用RRC消息向接收端UE指示相应的TRP映射起始子帧,通过物理层信令指示时,UE采用相应的控制信令(如SCI)指示所采用的TRP映射起始子帧。
5、根据业务类型确定:
根据D2D/V2V UE发送的数据的业务类型确定所使用的TRP映射起始子帧,例如,当UE发送的数据为周期性、普通业务类型时,采用某TRP映射起始子帧,同时当UE发送的数据为事件触发型、突发型、紧急业务类型时,采用另一TRP映射起始子帧。数据的业务类型可根据UE的指示、使用的资源池等确定。
6、信令指示参数确定:
通过高层信令(包括SIB、RRC)或物理层信令(包括DCI、SCI)指示TRP映射起始子帧时,可通过指示偏移量offset、子帧号等参数指示TRP映射的起始子帧。
其中,offset可以有多种定义方法,例如,offset定义为相对于资源周期边界的offset,即与周期内第一个子帧的相对子帧偏移;或者,offset定义为与相应的控制信息所在的子帧之间的子帧偏移量,如相对于SCI信息所在的子帧的偏移offset个子帧后,作为TRP的映射起始子帧等。
直接指示子帧号,通过子帧号指示出TRP映射的起始子帧,所指示的子帧号可以为周期内的顺次子帧号、实际物理子帧号、资源池中的逻辑顺序子帧号等。
7、与相应的控制信道资源之间的关系确定:
数据信道资源由控制信息指示,以SCI作为控制信息为例,对TRP映射的起始子帧可以采用与SCI所在控制信道资源的相对关系确定,承载相应指示数据信道资源的SCI信息的控制信道资源可称为SCI资源。通过预定的规则,可以基于SCI资源唯一确定相应的数据信道子帧指示TRP的映射起始子帧。
具体方法包括:
TRP映射起始子帧为与相应SCI信息所在的子帧有固定子帧间隔的子帧,如SCI子帧之后的第一个子帧开始映射TRP,或者从SCI子帧之后的+n子帧作为TRP映射起始子帧;
在周期性资源池配置下,采用SCI子帧所在的当前周期之后的下一个周期的第一个子帧作为TRP映射起始子帧;
在周期性资源池配置下,采用SCI子帧所在的当前周期之后的下一个周期内,与SCI所在子帧相同的子帧号的子帧作为TRP映射起始子帧,相当于与SCI子帧固定子帧间隔为周期值的子帧作为TRP映射起始子帧;
根据SCI资源信道号(SCI channel index)按一定规则计算确定TRP映射起始子帧,例如,对SCI channel index对资源周期取模,确定的值作为TRP映射起始子帧的子帧号,或者与SCI所在子帧之间的子帧间隔。
8、根据标识性信息确定:
根据发送端/接收端UE ID,群组ID,业务类型序号,控制信道资源索引号等特殊标识性信息,按照预定的规则确定TRP映射起始子帧。
例如,将UE ID对某固定数值取模,所得值作为TRP映射起始子帧的子帧号,或者作为TRP映射起始子帧与相应SCI子帧之间的子帧间隔等。
需要说明的是,上述方法采用信令指示TRP映射起始子帧的信息时,指示信息包含在eNB调度指示发送端UE的数据信道资源的DCI中,或者发送端UE向接收端UE指示数据信道资源的控制指示信息(如SCI)中。
另外,上述说明中数据信道子帧表示可用于传输数据包的子帧,同时并不限制在同一子帧上不可以传输其他信号及信息,即数据信道子帧同时也可以作为其他信道资源子帧。
方法三,数据包传输/重传次数:
根据TRP指示出的多个数据信道子帧可用于一个或多个数据包的传输和/或重传,因此在通过TRP指示出数据信道子帧的基础上,还需要进一步定义在所指示出的数据信道子帧上数据包传输的方案。
基于TRP指示出的多个数据信道子帧,定义数据包的重传规则:
1、系统预定义传输或重传次数:
由系统预定义固定的数据包传输或重传次数,UE将待发送的数据包按系统定义的传输或重传次数,在TRP指示出的一个或多个数据信道子帧上,依次进行传输。
例如,系统预定义V2V资源上,每个数据包的传输次数为2,初始传输及一次重传,则UE根据TRP指示出的子帧,按顺序在子帧上依次传输数据包的首传及重传。
另外,针对不同的应用场景或系统可定义相同或不同的传输或重传次数。
2、根据群组确定:
根据不同的D2D/V2V UE群组,可以使用不同的数据包传输或重传次数,以满足实际需求。
3、由网络侧设备指示:
由网络侧设备通过高层信令或物理层信令指示数据包传输或重传次数。
通过高层信令指示时,网络侧设备可采用SIB或RRC消息指示相应的数据包传输或重传次数,通过物理层信令指示时,采用相应的DCI信令指示所采用的数据包传输或重传次数。
4、由UE指示:
由D2D/V2V UE通过高层信令或物理层信令指示数据包传输或重传次数。
通过高层信令指示时,UE可采用RRC消息向接收端UE指示相应的数据包传输或重传次数,通过物理层信令指示时,UE采用相应的控制信令(如SCI)指示所采用的数据包传输或重传次数。
5、根据业务类型确定:
根据D2D/V2V UE发送的数据的业务类型确定相应的数据包传输或重传次数,例如,当UE发送的数据为周期性、普通业务类型时,采用传输次数为k1,同时当UE发送的数据为事件触发型、突发型、紧急业务类型时,采用传输次数为k2。数据的业务类型可根据UE的指示、使用的资源池等确定。
6、根据TRP指示出的子帧数量及待传输的数据包数量确定:
根据TRP映射指示出的子帧数量m以及待传输的数据包数量t可确定每个数据包的传输或重传次数,
Figure PCTCN2017070969-appb-000011
上述通过TRP对应bitmap序列的映射次数及映射起始位置指示数据信道子帧的各种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。
实例一
V2V通信系统中,网络侧设备通过高层信令配置了周期性资源池,系统预定义TRP bitmap序列的固定映射次数为2次,预定义TRP的映射起始子帧为周期内的第一个子帧,则相应的TRP bitmap序列映射指示数据信道子帧的效果,图8是根据本发明优选实施例的通过TRP bitmap序列映射次数及起始位置指示数据信道子帧的示意图一。如图8所示,根据所指示的TRP index,可确定相应的bitmap序列为“1110 0000”,则在一个资源池周期内,此bitmap序列从第一个子帧开始映射,共映射指示2次,相应指示出6个子帧为数据信道子帧。可以看 到,通过系统预定义的设置,可以在不需任何信令指示的条件下,实现TRP指示的有效映射。
实例二
D2D通信系统中,网络侧设备通过高层信令配置了周期性资源池,根据UE的群组划分,系统为不同的群组设置了不同的TRP bitmap序列映射次数及映射起始子帧。
图9是根据本发明优选实施例的通过TRP bitmap序列映射次数及起始位置指示数据信道子帧的示意图二,群组A采用2次bitmap映射次数,且映射的起始子帧为相对于周期第一个子帧offset等于4的子帧,群组B采用1次bitmap映射,且映射的起始子帧为相对于周期第一个子帧offset等于15的子帧,则在同样的TRP bitmap序列“1010 1000”的指示下,群组A与群组B中UE采用TRP指示出的数据信道子帧效果不同,如图9所示。可以看到由于映射次数及起始子帧的不同,不同的群组可以通过TRP达到不同的数据信道子帧配置效果,包括不同数量、不同子帧位置的资源,达到了灵活调度使用子帧,避免冲突,降低干扰等有益效果。
实例三
V2V通信系统中,网络侧设备通过高层信令为不同业务类型的信息传输配置了不同的控制信道资源池,并且为不同的资源池设置了不同的TRP bitmap序列映射次数及映射起始子帧,以及数据包传输次数。
资源池A用于承载周期性业务的控制信息,相应指示数据信道子帧的TRP采用1次映射,且映射的起始子帧为相应SCI信息所在的周期之后的下一个周期内的第一个子帧,数据包传输次数为2次;资源池B用于承载触发型业务的控制信息,相应指示数据信道子帧的TRP采用2次映射,且映射的起始子帧为相应SCI信息所在的子帧之后固定+4ms子帧,数据包传输次数为4次。
图10是根据本发明优选实施例的通过TRP bitmap序列映射次数、起始位置、数据包传输次数指示数据信道子帧配置的示意图,UE在资源池A中发送SCI信息,指示的TRP对应的bitmap序列为“0010 0001”,在资源池B中发送的SCI信息,指示TRP对应的bitmap序列为“1100 0000”,则相应的子帧指示及数据传输,如图10所示。
实例四
系统设置为根据UE发送SCI信息所在的资源隐式指示相应的TRP bitmap序列的映射起始子帧,隐式指示的规则为对SCI所在资源的信道号对资源周期进行取模运算,得到的数值作为在下一个周期内的映射起始子帧的子帧序号。
图11是根据本发明优选实施例的通过TRP bitmap序列映射次数及起始位置指示数据信道子帧的示意图三,UE A在SCI channel index=25上发送SCI信息,指示TRP对应的bitmap序列为“0110 0001”,映射次数由系统预定义固定为1次,资源池周期为20ms,则用SCI channel index对资源池周期取模=25mod 20=5,则TRP映射的起始子帧为SCI发送后的下一个周期 上的子帧序号为#5的子帧,即周期内的第6个子帧,如图11所示。
通过本发明的实施例,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,在该数据信道子帧上对一个或多个数据包进行传输和/或重传,解决了D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,满足了V2V通信方式中的资源方案的要求。
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,本发明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)执行本发明各个实施例该的方法。
本发明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,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧;
S2,在该数据信道子帧上对一个或多个数据包进行传输和/或重传。
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上述实施例的方法步骤。
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,上述的本发明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,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
工业实用性
本发明实施例提供的上述技术方案,可以应用于数据信道子帧的指示过程中,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,在该数据信道子帧上对一个或多个数据包进行传输和/或重传,解决了D2D通信方式中的资源方案不适用于V2V通信业务的时延、容量等需求的问题,满足了V2V通信方式中的资源方案的要求。

Claims (38)

  1. 一种数据信道子帧的指示方法,包括:
    通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,
    在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
  2. 根据权利要求1所述的方法,其中,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧包括:
    根据所述时域资源图样索引确定对应的子帧指示序列,所述子帧指示序列以位图bitmap方式一一对应指示N个子帧是否为数据信道子帧,其中,N为bitmap序列长度,所述bitmap序列向所述N个子帧的指示为一次映射,所述子帧指示序列的映射次数为所述bitmap序列向所述子帧指示的次数;
    所述子帧指示序列的映射起始子帧为所述bitmap序列向子帧进行映射指示时,指示的第一个子帧,其中,N为正整数。
  3. 根据权利要求1所述的方法,其中,在所述数据信道子帧上对一个或多个数据包进行传输或者重传之前,所述方法还包括:
    确定所述数据包的传输次数或重传次数,其中,依据所述传输次数或所述重传次数,在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
  4. 根据权利要求1所述的方法,其中,确定所述子帧指示序列的映射次数和/或映射起始子帧的方式,和/或,确定所述数据包的传输次数或重传次数的方式,包括以下至少之一:
    系统预定义;
    根据用户设备群组确定;
    根据所使用的资源池确定;
    网络侧设备通过高层信令和/或物理层信令指示;
    用户设备通过高层信令和/或物理层信令指示;
    根据待传输的数据包的业务类型确定。
  5. 根据权利要求4所述的方法,其中,由所述系统预定义的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,由所述系统预定义的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
    由系统预定义固定数值作为所述子帧指示序列的映射次数;
    由系统预定义固定子帧作为所述子帧指示序列的映射起始子帧;
    由系统预定义固定数值作为所述数据包传输次数或重传次数。
  6. 根据权利要求4所述的方法,其中,所述根据用户设备群组确定的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备群组确定的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
    根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射次数;
    根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射起始子帧;
    根据用户设备所属的群组确定所述群组使用的所述数据包的传输或重传次数。
  7. 根据权利要求4所述的方法,其中,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射次数包括:
    根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射次数。
  8. 根据权利要求4所述的方法,其中,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射起始子帧包括:
    根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射起始子帧。
  9. 根据权利要求4所述的方法,其中,所述根据所使用的资源池确定的的方式确定所述数据包的传输次数或重传次数,包括:
    根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述数据包的传输或重传次数。
  10. 根据权利要求4所述的方法,其中,所述网络侧设备通过高层信令和/或物理层信令指示的方式,确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述网络侧设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示的方式包括以下至少之一:
    通过所述高层信令指示时,所述网络侧设备通过系统广播消息和/或无线资源控制RRC消息指示;
    通过所述物理层信令指示时,所述网络侧设备通过下行控制信息DCI信令指示。
  11. 根据权利要求4所述的方法,其中,所述用户设备通过高层信令和/或物理层信令指示的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示方式包括以下至少之一:
    通过所述高层信令指示时,所述用户设备通过RRC消息指示;
    通过所述物理层信令指示时,所述用户设备通过边链路控制信息SCI信令指示。
  12. 根据权利要求10或者11所述的方法,其中,
    通过所述高层信令和/或所述物理层信令确定所述子帧指示序列的映射起始子帧时,通过指示子帧的偏移量和/或子帧号指示所述子帧指示序列的映射起始子帧,其中,
    所述偏移量为所述子帧指示序列的映射起始子帧相对于资源周期边界的子帧偏移;或者,
    所述偏移量为所述子帧指示序列的映射起始子帧与控制信息所在的子帧之间的子帧偏移;
    所述子帧号为周期内的顺序子帧号;或者,
    所述子帧号为物理子帧号;或者,
    所述子帧号为资源池中的逻辑顺序子帧号。
  13. 根据权利要求4所述的方法,其中,所述根据待传输的数据包的业务类型确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,确定所述数据包的传输次数或重传次数,其中,所述数据包的业务类型的确定方式包括以下至少之一:
    所述数据包的业务类型根据所述用户设备的指示确定;
    所述数据包的业务类型所述用户设备使用的资源池确定。
  14. 根据权利要求1所述的方法,其中,确定所述子帧指示序列的映射起始子帧的方式为,根据与控制信息所在的控制信道资源之间的关系确定所述子帧指示序列的映射起始子帧,所述与控制信道资源之间的关系包括以下至少之一:
    所述子帧指示序列的映射起始子帧与所述控制信息所在子帧之间为固定子帧间隔;
    所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内的第一个子帧;
    所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内,与所述控制信息所在子帧相同子帧序号的子帧;
    根据所述控制信息所在的所述控制信道索引号,按预定的规则确定所述子帧指示序列的映射起始子帧。
  15. 根据权利要求1所述的方法,其中,确定所述子帧指示序列的映射起始子帧的方式为,根据标识信息确定所述子帧指示序列的映射起始子帧,所述标识信息包括以下至少之一:
    根据用户设备标识ID、用户设备群组标识ID、数据包的业务类型序号、控制信道资源索引号;
    根据所述标识信息按照预定义规则确定所述子帧指示序列的映射起始子帧。
  16. 根据权利要求15所述的方法,其中,根据所述标识信息确定所述子帧指示序列的映射起始子帧的方法包括:
    将所述标识信息对固定数值取模或取余,所得数值作为所述子帧指示序列的映射起始子帧的子帧号,或者,作为所述映射起始子帧与所述控制信息所在的子帧之间的子帧间隔。
  17. 根据权利要求3所述的方法,其中,确定所述数据包的传输次数或重传次数包括:
    根据所述子帧指示序列指示出的子帧数量m以及待传输的数据包数量t确定每个数据包的传输或重传次数,所述数据包的传输次数为:
    Figure PCTCN2017070969-appb-100001
    X为所述数据包的传输次数,Y为重传次数,
    Figure PCTCN2017070969-appb-100002
    为向下取整,X、Y、m和t均为正整数。
  18. 根据权利要求4所述的方法,其中,
    所述网络侧设备包括以下至少之一: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。
  19. 根据权利要求1所述的方法,其中,通过所述子帧指示序列指示所述数据信道子帧,其中,可指示的所述数据信道子帧为实际物理子帧,或者为专用数据信道子帧,或者为逻辑连续的专用子帧。
  20. 一种数据信道子帧的指示装置,包括:
    指示模块,设置为通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧,
    发送模块,设置为在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
  21. 根据权利要求20所述的装置,其中,通过确定与时域资源图样索引对应的子帧指示序列的映射次数和/或映射起始子帧,指示一个或多个数据信道子帧包括:
    根据所述时域资源图样索引确定对应的子帧指示序列,所述子帧指示序列以位图bitmap方式一一对应指示N个子帧是否为数据信道子帧,其中,N为bitmap序列长度,所述bitmap序列向所述N个子帧的指示为一次映射,所述子帧指示序列的映射次数为所述bitmap序列向所述子帧指示的次数;
    所述子帧指示序列的映射起始子帧为所述bitmap序列向子帧进行映射指示时,指示 的第一个子帧,其中,N为正整数。
  22. 根据权利要求20所述的装置,其中,在所述数据信道子帧上对一个或多个数据包进行传输或者重传之前,还包括:
    确定所述数据包的传输次数或重传次数,其中,依据所述传输次数或所述重传次数,在所述数据信道子帧上对一个或多个数据包进行传输和/或重传。
  23. 根据权利要求20所述的装置,其中,确定所述子帧指示序列的映射次数和/或映射起始子帧的方式,和/或,确定所述数据包的传输次数或重传次数的方式,包括以下至少之一:
    系统预定义;
    根据用户设备群组确定;
    根据所使用的资源池确定;
    网络侧设备通过高层信令和/或物理层信令指示;
    用户设备通过高层信令和/或物理层信令指示;
    根据待传输的数据包的业务类型确定。
  24. 根据权利要求23所述的装置,其中,由所述系统预定义的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,由所述系统预定义的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
    由系统预定义固定数值作为所述子帧指示序列的映射次数;
    由系统预定义固定子帧作为所述子帧指示序列的映射起始子帧;
    由系统预定义固定数值作为所述数据包传输次数或重传次数。
  25. 根据权利要求23所述的装置,其中,所述根据用户设备群组确定的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备群组确定的方式确定所述数据包的传输次数或重传次数,包括以下至少之一:
    根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射次数;
    根据用户设备所属的群组确定所述群组使用的所述子帧指示序列的映射起始子帧;
    根据用户设备所属的群组确定所述群组使用的所述数据包的传输或重传次数。
  26. 根据权利要求23所述的装置,其中,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射次数包括:
    根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射次数。
  27. 根据权利要求23所述的装置,其中,所述根据所使用的资源池确定的方式确定所述子帧指示序列的映射起始子帧包括:
    根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述子帧指示序列的映射起始子帧。
  28. 根据权利要求23所述的装置,其中,所述根据所使用的资源池确定的的方式确定所述数据包的传输次数或重传次数,包括:
    根据用户设备使用的控制信道资源池和/或数据信道资源池,确定所述数据包的传输或重传次数。
  29. 根据权利要求23所述的装置,其中,所述网络侧设备通过高层信令和/或物理层信令指示的方式,确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述网络侧设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示的方式包括以下至少之一:
    通过所述高层信令指示时,所述网络侧设备通过系统广播消息和/或无线资源控制RRC消息指示;
    通过所述物理层信令指示时,所述网络侧设备通过下行控制信息DCI信令指示。
  30. 根据权利要求23所述的装置,其中,所述用户设备通过高层信令和/或物理层信令指示的方式确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,根据所述用户设备通过高层信令和/或物理层信令指示的方式确定所述数据包的传输次数或重传次数,所述指示方式包括以下至少之一:
    通过所述高层信令指示时,所述用户设备通过RRC消息指示;
    通过所述物理层信令指示时,所述用户设备通过边链路控制信息SCI信令指示。
  31. 根据权利要求29或者30所述的装置,其中,
    通过所述高层信令和/或所述物理层信令确定所述子帧指示序列的映射起始子帧时,通过指示子帧的偏移量和/或子帧号指示所述子帧指示序列的映射起始子帧,其中,
    所述偏移量为所述子帧指示序列的映射起始子帧相对于资源周期边界的子帧偏移;或者,
    所述偏移量为所述子帧指示序列的映射起始子帧与控制信息所在的子帧之间的子帧偏移;
    所述子帧号为周期内的顺序子帧号;或者,
    所述子帧号为物理子帧号;或者,
    所述子帧号为资源池中的逻辑顺序子帧号。
  32. 根据权利要求23所述的装置,其中,所述根据待传输的数据包的业务类型确定所述子帧指示序列的映射次数和/或映射起始子帧,和/或,确定所述数据包的传输次数或重传次数,其中,所述数据包的业务类型的确定方式包括以下至少之一:
    所述数据包的业务类型根据所述用户设备的指示确定;
    所述数据包的业务类型所述用户设备使用的资源池确定。
  33. 根据权利要求20所述的装置,其中,确定所述子帧指示序列的映射起始子帧的方式为,根据与控制信息所在的控制信道资源之间的关系确定所述子帧指示序列的映射起始子帧,所述与控制信道资源之间的关系包括以下至少之一:
    所述子帧指示序列的映射起始子帧与所述控制信息所在子帧之间为固定子帧间隔;
    所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内的第一个子帧;
    所述控制信息所在子帧的周期为当前周期,所述子帧指示序列的映射起始子帧为所述当前周期之后的下一个周期内,与所述控制信息所在子帧相同子帧序号的子帧;
    根据所述控制信息所在的所述控制信道索引号,按预定的规则确定所述子帧指示序列的映射起始子帧。
  34. 根据权利要求20所述的装置,其中,确定所述子帧指示序列的映射起始子帧的方式为根据标识信息确定所述子帧指示序列的映射起始子帧,所述标识信息包括以下至少之一:
    根据用户设备标识ID、用户设备群组标识ID、数据包的业务类型序号、控制信道资源索引号;
    根据所述标识信息按照预定义规则确定所述子帧指示序列的映射起始子帧。
  35. 根据权利要求34所述的装置,其中,根据所述标识信息确定所述子帧指示序列的映射起始子帧的方法包括:
    将所述标识信息对固定数值取模或取余,所得数值作为所述子帧指示序列的映射起始子帧的子帧号,或者,作为所述映射起始子帧与所述控制信息所在的子帧之间的子帧间隔。
  36. 根据权利要求22所述的装置,其中,确定所述数据包的传输次数或重传次数包括:
    根据所述子帧指示序列指示出的子帧数量m以及待传输的数据包数量t确定每个数据包的传输或重传次数,所述数据包的传输次数为:
    Figure PCTCN2017070969-appb-100003
    X为所述数据包的传输次数,Y为重传次数,
    Figure PCTCN2017070969-appb-100004
    为向下取整,X、Y、m和t均为正整数。
  37. 根据权利要求23所述的装置,其中,
    所述网络侧设备包括以下至少之一: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。
  38. 根据权利要求20所述的装置,其中,通过所述子帧指示序列指示所述数据信道子帧,其中,可指示的所述数据信道子帧为实际物理子帧,或者为专用数据信道子帧,或者为逻辑连续的专用子帧。
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