WO2020088314A1 - 信息传输方法及节点设备 - Google Patents

信息传输方法及节点设备 Download PDF

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Publication number
WO2020088314A1
WO2020088314A1 PCT/CN2019/112674 CN2019112674W WO2020088314A1 WO 2020088314 A1 WO2020088314 A1 WO 2020088314A1 CN 2019112674 W CN2019112674 W CN 2019112674W WO 2020088314 A1 WO2020088314 A1 WO 2020088314A1
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Prior art keywords
unicast
transmission mode
multicast
transmission method
underlying
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PCT/CN2019/112674
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English (en)
French (fr)
Inventor
冯媛
郑方政
赵锐
李晨鑫
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电信科学技术研究院有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data

Definitions

  • the present disclosure relates to the technical field of communication applications, and in particular, to an information transmission method and node device.
  • V2X vehicle to everything
  • a PC5 interface also called a through link for transmitting data between the user equipment (User Equipment) and the UE , Described in the agreement as Sidelink
  • LTE Long Term Evolution
  • a PC5 interface also called a through link
  • SUBSCRIBER UNIT a PC5 interface for transmitting data between the user equipment (User Equipment) and the UE .
  • a PC5 interface also called a through link
  • SUBSC User Equipment
  • Sidelink the transmission reliability of required service packages within the prescribed coverage is greater than 95%.
  • the purpose of the present disclosure is to provide an information transmission method and node equipment to solve the problem of how to set a destination ID (destination ID) or a destination group ID (destination group ID) in a unicast or multicast scenario.
  • the present disclosure provides an information transmission method, which is applied to a sending node and includes:
  • the bottom layer ID is indicated to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • the acquiring high-level identification ID includes:
  • the group ID remains unchanged during unicast or multicast communication.
  • the acquiring high-level identification ID includes:
  • the UE ID when the receiving node establishes a connection with the sending node is determined as the high-level identification ID.
  • mapping the high-level ID to the bottom ID includes:
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • mapping of the high-level identification ID to the bottom-level ID, after the number of bits of the bottom-level ID is less than or equal to the number of bits of the high-level ID further includes:
  • PSSCH scrambling code to scramble the PSSCH, and indicate the scrambled PSSCH to the receiving node
  • the PSSCH scrambling code includes the target message or includes the target message and the content in the PSCCH;
  • the target message is a message that is not related to the content in the PSCCH.
  • an embodiment of the present disclosure also provides an information transmission method, which is applied to a receiving node and includes:
  • the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode
  • a corresponding reception processing method is used for receiving processing, wherein different transmission processing methods use different reception processing methods.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the corresponding receiving processing method is used for receiving processing, including:
  • receiving processing is performed according to corresponding quality of service QoS processing, and the quality of service QoS processing includes at least: resource preemption processing;
  • receiving processing is performed according to the corresponding hybrid automatic repeat request HARQ feedback, and the HARQ feedback includes at least whether feedback resources exist;
  • an embodiment of the present disclosure also provides a node device, which is a sending node, and includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor.
  • a node device which is a sending node, and includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor.
  • the bottom layer ID is indicated to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • the processor also implements the following steps when executing the program:
  • the group ID remains unchanged during unicast or multicast communication.
  • the processor also implements the following steps when executing the program:
  • the UE ID when the receiving node establishes a connection with the sending node is determined as the high-level identification ID.
  • the processor also implements the following steps when executing the program:
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the processor also implements the following steps when executing the program:
  • PSSCH scrambling code to scramble the PSSCH, and indicate the scrambled PSSCH to the receiving node
  • the PSSCH scrambling code includes the target message or includes the target message and the content in the PSCCH;
  • the target message is a message that is not related to the content in the PSCCH.
  • an embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps of the information transmission method applied to the sending node as described above.
  • an embodiment of the present disclosure also provides a node device, which is a receiving node, and includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor.
  • a node device which is a receiving node, and includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor.
  • the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode
  • a corresponding reception processing method is used for receiving processing, wherein different transmission processing methods use different reception processing methods.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the processor also implements the following steps when executing the program:
  • receiving processing is performed according to corresponding quality of service QoS processing, and the quality of service QoS processing includes at least: resource preemption processing;
  • receiving processing is performed according to the corresponding hybrid automatic repeat request HARQ feedback, and the HARQ feedback includes at least whether feedback resources exist;
  • an embodiment of the present disclosure also provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor implements the steps of the information transmission method applied to the receiving node as described above.
  • an embodiment of the present disclosure also provides a node device, where the node device is a sending node and includes:
  • the first obtaining module is used to obtain a high-level identification ID
  • a mapping module configured to map the high-level identification ID to the bottom-level ID, the number of bits of the bottom-level ID is less than or equal to the number of bits of the high-level ID;
  • the first indication module is used to indicate the bottom layer ID to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • the first obtaining module is used to determine the group ID generated by the application upper layer for the multicast or unicast sending node as the upper layer identification ID;
  • the group ID remains unchanged during unicast or multicast communication.
  • the first acquiring module is used to generate a new terminal UE ID for the unicast sending node, determine the new terminal UE ID as the high-level identification ID, and the new terminal UE ID is in unicast Keep the same during communication;
  • the UE ID when the receiving node establishes a connection with the sending node is determined as the high-level identification ID.
  • the mapping module is used to map the high-level identification ID through a predetermined mapping rule to obtain a bottom layer ID, and the bottom layer ID is an ID other than the predetermined ID specified by the broadcast;
  • it is used to map the high-level identification ID belonging to the unicast transmission mode to the first ID set through a predetermined mapping rule to obtain a bottom layer ID, and to map the high-level ID belonging to the multicast transmission mode to the second through a predetermined mapping rule ID collection, get the underlying ID.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the above node devices also include:
  • a second indicating module configured to scramble the PSSCH using the physical through shared channel PSSCH scrambling code, and indicate the scrambled PSSCH to the receiving node;
  • the PSSCH scrambling code includes the target message or includes the target message and the content in the PSCCH;
  • the target message is a message that is not related to the content in the PSCCH.
  • an embodiment of the present disclosure also provides a node device, where the node device is a receiving node and includes:
  • the second obtaining module is used to obtain the underlying ID indicated by the sending node through the physical direct control channel PSCCH scheduling control information SCI;
  • the determining module is used to determine the transmission mode of the message sent by the sending node according to the underlying ID and the predetermined mapping rule, and the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode;
  • the processing module is used for receiving processing according to the determined transmission mode and adopting a corresponding receiving processing method, wherein different receiving modes adopt different receiving processing methods.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the processing module is configured to perform receiving processing according to the corresponding quality of service QoS processing according to the determined transmission mode, and the quality of service QoS processing includes at least: resource preemption processing;
  • receiving processing is performed according to the corresponding hybrid automatic repeat request HARQ feedback, and the HARQ feedback includes at least whether feedback resources exist;
  • the above technical solution of the embodiment of the present disclosure obtains a high-level identification ID; maps the high-level identification ID to a low-level ID, and the number of bits of the low-level ID is less than or equal to the number of high-level IDs;
  • the scheduling control information SCI is indicated to the receiving node, so that the receiving node determines the transmission mode according to the underlying ID, and performs corresponding reception processing according to the transmission mode.
  • Figure 1 is a schematic diagram of SL-SCH
  • FIG. 2 is a schematic flowchart of an information transmission method according to an embodiment of the present disclosure
  • FIG. 3 is a second schematic flowchart of an information transmission method according to an embodiment of the present disclosure.
  • FIG. 4 is a structural block diagram of a node device according to an embodiment of the present disclosure.
  • FIG. 6 is a second schematic diagram of a module of a node device according to an embodiment of the present disclosure.
  • the MAC layer of the media access control embodiment of the present disclosure is divided into unicast, multicast and broadcast, but the physical layer PHY is all broadcast, and the bottom layer does not make a distinction.
  • the through logical channel (SL-SCH) header is composed of 7 fields V / R / R / R / R / SRC / DST, and the fixed length is 7 bytes.
  • the receiving terminal distinguishes different sending users through SRC. Among them, the meaning of each field is shown in Table 1.
  • SRC source layer 2 ID (source Layer-2ID), UE self-provisioned and generated ProSe (Proximity-based Services) UE ID.
  • the target ID is not included in the SCI.
  • the total length of the SA (SCI) is 48 bits (32 bits are left in addition to 16 bits and CRC).
  • the indicated fields and the corresponding number of bits are defined as follows:
  • Time interval between initial transmission and retransmission 4bits
  • Modulation and coding MCS 5bits
  • Retransmission indication 1bit, indicating whether it is initial transmission or retransmission at present;
  • the application layer identifier is the temporary ID in the msg message, that is, the change of the L2 ID is related to the following factors:
  • T5000 timer configurable value, 1-65535 seconds
  • Cirtical event flag it is related to the priority of the message, and it is not changed for high-priority service packages.
  • L2 ID is a variable of per-UE granularity.
  • an embodiment of the present disclosure provides an information transmission method, which is applied to a sending node.
  • the sending node may be specifically a terminal.
  • the method includes:
  • Step 201 Obtain a high-level identification ID.
  • the MAC layer of the media access control is divided into unicast, multicast and broadcast, but the physical layer PHY is all broadcast, and the bottom layer does not make a distinction.
  • the high-level ID includes a target ID in unicast or a target group ID (destination group ID) in multicast.
  • the acquiring a high-level identification ID includes:
  • the group ID generated by the application high layer is determined as the high layer identification ID.
  • the group ID remains unchanged during unicast or multicast communication.
  • the group ID generated by the upper layer (for the group head node, generated by the upper layer when grouping) is used as the upper layer ID; this group ID remains unchanged during this communication process, and the group ID can be multi-bit or can be the same as the bottom layer
  • the indication is the same, for example, 8 bits.
  • a new group ID (or connection ID) is generated; this group ID remains unchanged during this communication, which is equivalent to the node pair participating in unicast communication is associated with this ID, similar to the group Broadcast communication; for example, it is determined that the UE that initiated the connection establishment makes a decision, or the UE that responds to the connection establishment makes the decision; if the responding UE has maintained the same ID, it can be rejected, and the UE that initiates the connection establishment randomly selects a new one ID, the group ID can be multi-bit, or it can be the same as the bottom indication, for example, 8 bits.
  • the source UE and the target UE negotiate or interact during the connection establishment, and the high-level identification is determined by the group header; for the unicast node, the high-level identification can be sent by the sending node and the response that initiate the connection establishment request
  • the receiving nodes of the connection establishment request jointly negotiate interaction and confirmation.
  • the acquiring a high-level identification ID includes:
  • a new terminal UE ID is generated, and the new terminal UE ID is determined as the high-level identification ID, and the new terminal UE ID remains unchanged during the unicast communication process.
  • the new terminal UE ID may specifically be a new prose UE ID (near-end UE ID).
  • the high-level management processes the changes in accordance with relevant mechanisms.
  • a new prose UE ID is introduced. This prose UE ID remains unchanged during the unicast communication process, which is equivalent to each node participating in unicast communication has its own Prose UE ID, two unicast communication parties have two prose UE IDs, the prose UE ID can be multi-bit, or it can be the same as the underlying instructions, such as 8 bits.
  • the UE ID when the receiving node establishes a connection with the sending node is determined as the high-level identification ID.
  • the UE ID in the embodiment of the present disclosure is specifically a prose UE ID.
  • both communication parties only maintain the prose UE ID at the time of connection establishment. Once sent out, the entire communication process remains unchanged. That is, the actual high-level ID of the UE changes according to the relevant rules, but the SCI indicates the initial ID of the prose used for connection establishment.
  • the high-level ID information needs to interact during the connection establishment process. Such as through the following two ways to interact.
  • connection establishment physical layer message contains the high-level ID (layer two ID) information; for the receiving end, this information can be learned directly from the physical layer.
  • layer two ID layer two ID
  • the bottom layer directly maps and sends.
  • connection establishment process the pure physical layer information does not contain the high-level ID message, but the connection establishment process involves high-level information, and the MAC protocol data unit PDU header contains the prose UE (source L2 ID). That is, it needs to be learned through the interaction between layers after the high-level analysis of the receiving end. It is sent by the upper layer to the physical layer, and the physical layer does the storage after the mapping, or the upper layer directly does the storage after the mapping.
  • Step 202 Map the high-level identification ID to the bottom-level ID, and the number of bits of the bottom-level ID is less than or equal to the number of bits of the high-level ID.
  • a high-level ID with a large number of bits is mapped to a low-level ID with a small number of bits through a predetermined mapping rule, thereby reducing signaling overhead.
  • the predetermined mapping rule includes: the broadcast transmission mode corresponds to a predetermined underlying ID, the unicast transmission mode and the multicast transmission mode correspond to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission mode, the multicast transmission mode, and the broadcast transmission mode respectively correspond to an underlying ID or ID set.
  • the unicast ID set corresponding to the unicast transmission mode, the multicast ID set corresponding to the multicast transmission mode, and the ID corresponding to the broadcast transmission mode are orthogonal to each other. That is, the unicast ID set, the multicast ID set, and the broadcast ID are orthogonal to each other.
  • this step 202 includes:
  • the high-level identification ID is mapped by a predetermined mapping rule to obtain a bottom layer ID, and the bottom layer ID is an ID other than the predetermined ID specified by the broadcast.
  • the broadcast specifies a special ID, such as all 0s or all 1s, and other IDs are mapped by specific rules and mapped to other IDs than the broadcast ID. That is, there is no further distinction between unicast and multicast.
  • broadcast specifies a special ID, such as all 0s or all 1s. For other IDs, it is divided into two parts, unicast ID and multicast ID. For example, the broadcast ID is defined as 255, the unicast ID is defined as (0, 100), and the multicast ID is defined as (101, 254).
  • the above high-level IDs (target ID and multicast destination group ID) of the unicast pass a certain mapping The rule can be mapped to an 8-bit underlying ID.
  • Step 203 Indicate the bottom layer ID to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • mapping of the high-layer identification ID to the bottom layer ID, after the number of bits of the bottom layer ID is less than or equal to the number of bits of the high layer ID further includes:
  • PSSCH scrambling code to scramble the PSSCH, and indicate the scrambled PSSCH to the receiving node
  • the PSSCH scrambling code includes the target message or includes the target message and the content in the PSCCH;
  • the target message is a message that is not related to the content in the PSCCH.
  • the content of the target message is not specifically limited.
  • the PSCCH does not perform terminal-specific (ue-specific) scrambling.
  • the scrambling of the PSSCH is related to the cyclic redundancy check CRC of the PSCCH, and the CRC of the PSCCH is related to the content of the PSCCH. That is, if the PSCCH is parsed correctly, the PSSCH content can also be parsed correctly.
  • This kind of scrambling method has low privacy protection for PSSCH.
  • a message that is not related to the content in the PSCCH is used as the PSSCH scrambling code to scramble the PSSCH, or the target message and the content in the PSCCH are used to scramble the PSSCH, and the content in the PSCCH is added to the PSSCH
  • There is a mapping relationship between the scrambling codes and the mapping relationship is determined through negotiation between the sending node and the receiving node during the connection establishment process.
  • the PSSCH is directly scrambled without using the target ID or the target group ID, but the target message or the target message and the content in the PSCCH are used to scramble the PSSCH, thereby enhancing the privacy protection of the PSSCH.
  • the information transmission method of the embodiment of the present disclosure obtains a high-level identification ID; maps the high-level identification ID to a bottom-level ID, and the number of bits of the bottom-level ID is less than or equal to the number of bits of the high-level ID; and passes the bottom-level ID through a physical pass-through control channel PSCCH
  • the scheduling control information SCI is indicated to the receiving node, so that the receiving node determines the transmission mode according to the underlying ID, and performs corresponding reception processing according to the transmission mode.
  • Example 1 Both parties in communication only maintain the prose UE ID at the time of connection establishment.
  • a ’s prose UE ID is “11111111111100000000000”
  • B ’s prose UE ID is “000000000000111111111111”.
  • the node A ’s prose ID changes multiple times (11100000000000000000, 11111111000000000000000, etc.)
  • the node B ’s prose UE also changes multiple times (111111111111110000000, 000000000000000000001111, etc.); but as long as the nodes A and B unicast communication process
  • the IDs "11111111111100000000000” and "000000000000111111111111” at that time are always used as references.
  • the MAC ID can be changed along with the change, but the physical layer ID is not changed.
  • Example 2 For nodes participating in unicast, a new group ID is generated.
  • Node A initiates the connection establishment, and the upper layer or the bottom layer randomly chooses to generate a connection ID, "11111111111100000000000", and then do the mapping, or directly generate an 8-bit "11100011" directly for the physical layer ID.
  • the information transmission method of the embodiment of the present disclosure obtains a high-level identification ID; maps the high-level identification ID to a bottom-level ID, and the number of bits of the bottom-level ID is less than or equal to that of the high-level ID;
  • the scheduling control information SCI is indicated to the receiving node, so that the receiving node determines the transmission mode according to the underlying ID, and performs corresponding reception processing according to the transmission mode.
  • an embodiment of the present disclosure also provides an information transmission method, which is applied to a receiving node.
  • the receiving node may be specifically a terminal.
  • the method includes:
  • Step 301 Obtain the underlying ID indicated by the sending node through the physical direct control channel PSCCH scheduling control information SCI.
  • Step 302 Determine the transmission mode of the message sent by the sending node according to the underlying ID and the predetermined mapping rule, and the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode.
  • the predetermined mapping rule includes: the broadcast transmission mode corresponds to a predetermined underlying ID, the unicast transmission mode and the multicast transmission mode correspond to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID;
  • the unicast transmission mode, the multicast transmission mode, and the broadcast transmission mode respectively correspond to an underlying ID or ID set.
  • the unicast ID set corresponding to the unicast transmission mode, the multicast ID set corresponding to the multicast transmission mode, and the ID corresponding to the broadcast transmission mode are orthogonal to each other.
  • Step 303 According to the determined transmission mode, a corresponding reception processing method is used for receiving processing, wherein different transmission modes use different reception processing methods.
  • receiving processing is performed according to corresponding quality of service QoS processing, and the quality of service QoS processing includes at least: resource preemption processing;
  • receiving processing is performed according to the corresponding hybrid automatic repeat request HARQ feedback, and the HARQ feedback includes at least whether feedback resources exist;
  • resource preemption processing includes: setting the unicast priority to the highest, the multicast priority to be the second, the broadcast priority to the lowest, and the high priority to preempt the low priority resources.
  • resource exclusion processing different resource exclusion levels can be set for different transmission methods, such as setting the most strict resource exclusion for resources occupied by unicast, and setting higher and strict resource exclusion for resources occupied by multicast,
  • the resource with the lowest priority is set for the resources occupied by the broadcast; the strictness here can be expressed in the number of times the resource is occupied, it can be the threshold setting of the measured quantity, and so on.
  • the specific communication method can be determined by the ID category and ID value, that is, unicast multicast and broadcast; for different communication methods, different processing mechanisms can be adopted, for example, For unicast, there is a feedback resource by default; for multicast, there is no feedback resource; or, different processing procedures can be used in the resource elimination process.
  • the information transmission method of the embodiment of the present disclosure obtains the bottom layer ID indicated by the sending node through the scheduling control information SCI of the physical pass-through control channel PSCCH; according to the bottom layer ID and a predetermined mapping rule, determines the transmission mode of the sending node to send the message; according to the determined For the transmission mode, a corresponding reception processing method is used for receiving processing, wherein different transmission modes use different reception processing methods.
  • an embodiment of the present disclosure also provides a node device, where the node device is a sending node.
  • the node device is a terminal, including: a transceiver, a memory, a processor, and stored on the memory And a computer program that can run on a processor, and when the processor executes the computer program, the following steps are realized:
  • the bottom layer ID is indicated to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by the processor 400 and various circuits of the memory represented by the memory 420 are linked together.
  • the bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, etc., which are well known in the art, and therefore, they will not be further described in this article.
  • the bus interface provides an interface.
  • the transceiver 410 may be a plurality of elements, including a transmitter and a transceiver, and provides a unit for communicating with various other devices on a transmission medium.
  • the user interface 430 may also be an interface that can be externally connected to the required equipment.
  • the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 when performing operations.
  • the processor 400 is also used to read the program in the memory 420 and perform the following steps:
  • the group ID remains unchanged during unicast or multicast communication.
  • the processor 400 is also used to read the program in the memory 420 and perform the following steps:
  • the UE ID when the receiving node establishes a connection with the sending node is determined as the high-level identification ID.
  • the processor 400 is also used to read the program in the memory 420 and perform the following steps:
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID ;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the processor 400 is also used to read the program in the memory 420 and perform the following steps:
  • PSSCH scrambling code to scramble the PSSCH, and indicate the scrambled PSSCH to the receiving node
  • the PSSCH scrambling code includes the target message or includes the target message and the content in the PSCCH;
  • the target message is a message that is not related to the content in the PSCCH.
  • the node device of the embodiment of the present disclosure obtains the high-level identification ID; maps the high-level identification ID to the bottom-level ID, and the number of bits of the bottom-level ID is less than or equal to the number of bits of the high-level ID;
  • the scheduling control information SCI indicates to the receiving node, so that the receiving node determines the transmission mode according to the underlying ID, and performs corresponding reception processing according to the transmission mode.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by the processor, the following steps are realized:
  • the bottom layer ID is indicated to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • the program When the program is executed by the processor, it can implement all the implementation manners in the foregoing method embodiments applied to the sending node. To avoid repetition, details are not described herein again.
  • an embodiment of the present disclosure also provides a node device.
  • the node device is a sending node, and includes:
  • the first obtaining module 501 is used to obtain a high-level identification ID
  • the mapping module 502 is configured to map the high-level identification ID to the bottom-level ID, and the number of bits of the bottom-level ID is less than or equal to the number of bits of the high-level ID;
  • the first indication module 503 is used to indicate the bottom layer ID to the receiving node through the scheduling control information SCI of the physical through control channel PSCCH.
  • the first obtaining module 501 is used to determine the group ID generated by applying a higher layer for the multicast or unicast sending node as the higher layer identification ID;
  • the group ID remains unchanged during unicast or multicast communication.
  • the first acquisition module 501 is used to generate a new terminal UE ID for a unicast sending node, and determine the new terminal UE ID as the high-level identification ID, the new The ID of the terminal UE remains unchanged during the unicast communication;
  • the UE ID when the receiving node establishes a connection with the sending node is determined as the high-level identification ID.
  • the mapping module 502 is configured to map the high-level identification ID through a predetermined mapping rule to obtain a bottom layer ID, where the bottom layer ID is an ID other than the predetermined ID specified by the broadcast;
  • it is used to map the high-level identification ID belonging to the unicast transmission mode to the first ID set through a predetermined mapping rule to obtain a bottom layer ID, and to map the high-level ID belonging to the multicast transmission mode to the second through a predetermined mapping rule ID collection, get the underlying ID.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set and the predetermined
  • the bottom layer ID is orthogonal;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • a second indicating module configured to scramble the PSSCH using the physical pass-through shared channel PSSCH scrambling code, and indicate the scrambled PSSCH to the receiving node;
  • the PSSCH scrambling code includes the target message or includes the target message and the content in the PSCCH;
  • the target message is a message that is not related to the content in the PSCCH.
  • the node device of the embodiment of the present disclosure obtains a high-level identification ID; maps the high-level identification ID to a low-level ID, and the number of bits of the low-level ID is less than or equal to the number of high-level IDs;
  • the scheduling control information SCI indicates to the receiving node, so that the receiving node determines the transmission mode according to the underlying ID, and performs corresponding reception processing according to the transmission mode.
  • An embodiment of the present disclosure also provides a node device, where the node device is a receiving node, and the communication device is specifically a terminal, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor
  • the structural block diagram of the receiving end is the same as the structural block diagram shown in FIG. 4, and the following steps are realized when the processor executes the program:
  • the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode
  • a corresponding reception processing method is used for receiving processing, wherein different transmission processing methods use different reception processing methods.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set is orthogonal to the predetermined underlying ID ;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the processor also implements the following steps when executing the program:
  • receiving processing is performed according to corresponding quality of service QoS processing, and the quality of service QoS processing includes at least: resource preemption processing;
  • receiving processing is performed according to the corresponding hybrid automatic repeat request HARQ feedback, and the HARQ feedback includes at least whether feedback resources exist;
  • the node device of the embodiment of the present disclosure obtains the bottom layer ID indicated by the sending node through the physical direct control channel PSCCH scheduling control information SCI; according to the bottom layer ID and a predetermined mapping rule, determines the transmission mode of the sending node to send the message; Mode, the corresponding receiving processing method is used for receiving processing, wherein different receiving modes use different receiving processing methods.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by the processor, the following steps are realized:
  • the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode
  • a corresponding reception processing method is used for receiving processing, wherein different transmission processing methods use different reception processing methods.
  • the program When the program is executed by the processor, it can implement all the implementation manners in the foregoing method embodiment applied to the receiving node. To avoid repetition, details are not described herein again.
  • an embodiment of the present disclosure also provides a node device.
  • the node device is a receiving node, including:
  • the second obtaining module 601 is used to obtain the underlying ID indicated by the sending node through the physical direct control channel PSCCH scheduling control information SCI;
  • the determining module 602 is configured to determine the transmission mode of the message sent by the sending node according to the underlying ID and a predetermined mapping rule, and the transmission mode includes a unicast mode, a multicast mode, or a broadcast mode;
  • the processing module 603 is configured to perform receiving processing using a corresponding receiving processing method according to the determined transmission mode, where different receiving modes use different receiving processing methods.
  • the predetermined mapping rule includes: a broadcast transmission mode corresponding to a predetermined underlying ID, a unicast transmission mode and a multicast transmission mode corresponding to a shared ID set, and the shared ID set and the predetermined
  • the bottom layer ID is orthogonal;
  • the unicast transmission method, the multicast transmission method, and the broadcast transmission method respectively correspond to an underlying ID or ID set, where the unicast ID method corresponding to the unicast transmission method, the multicast ID set corresponding to the multicast transmission method, and the broadcast transmission
  • the IDs corresponding to the modes are orthogonal to each other.
  • the processing module is configured to perform receiving processing according to the corresponding quality of service QoS processing according to the determined transmission mode.
  • the quality of service QoS processing includes at least: resource preemption processing;
  • receiving processing is performed according to the corresponding hybrid automatic repeat request HARQ feedback, and the HARQ feedback includes at least whether feedback resources exist;
  • the node device of the embodiment of the present disclosure obtains the bottom layer ID indicated by the sending node through the physical direct control channel PSCCH scheduling control information SCI; according to the bottom layer ID and a predetermined mapping rule, determines the transmission mode of the sending node to send the message; Mode, the corresponding receiving processing method is used for receiving processing, wherein different receiving modes use different receiving processing methods.
  • the embodiments described in the embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof.
  • the processing unit can be implemented in one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processor (Digital Signal Processing, DSP), digital signal processing device (DSP Device, DSPD), programmable Logic device (Programmable Logic Device, PLD), field programmable gate array (Field-Programmable Gate Array, FPGA), general-purpose processor, controller, microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processing
  • DSP Device digital signal processing device
  • DPD digital signal processing device
  • PLD programmable Logic Device
  • FPGA field programmable gate array
  • controller microcontroller, microprocessor, others for performing the functions described in this disclosure Electronic unit or its combination.
  • the technology described in the embodiments of the present disclosure may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • the software codes can be stored in the memory and executed by the processor.
  • the memory may be implemented in the processor or external to the processor.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
  • the technical solution of the present disclosure essentially or part of the contribution to the related technology or part of the technical solution can be embodied in the form of a software product, the computer software product is stored in a storage medium, including several
  • the instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本公开提供了一种信息传输方法及节点设备。本公开的方法包括：获取高层标识ID；将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点，使得接收节点根据该底层ID，确定传输模式，并根据传输模式进行相应的接收处理。

Description

信息传输方法及节点设备
相关申请的交叉引用
本申请主张在2018年11月2日在中国提交的中国专利申请号No.201811302705.3的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及通信应用的技术领域，尤其涉及一种信息传输方法及节点设备。
背景技术
车对外界的信息交换(vehicle to everything，V2X)技术借助车与车，车与路测基础设施、车与路人之间的无线通信，可实时感知车辆周边状况、共享道路信息并进行及时预警，已成为当前世界各国解决道路安全问题的一个研究热点。
在相关的长期演进(Long Term Volution，LTE)V2X技术中(Rel-14 LTE V2X技术)，在用户设备(User Equipment，UE)与UE之间传输数据的PC5接口(也称之为直通链路，协议上描述为Side link)已经可以支持基本的基于道路安全的业务的传输。其中，主要面向的是数据包大小为50-1200bytes之间的业务包，要求的业务包在规定的覆盖内其传输的可靠性大于95％。
随着车联网技术的进一步发展，新的一些应用场景的出现，例如：车辆编队、高级驾驶、传感器信息共享、以及远程控制等应用。这些应用中有些要求的是一个组内的UE之间的组播通信，或者两个UE之间的单播的通信。因此，V2X系统需要考虑单播以及组播等场景。单播或组播场景中如何设置目标标识(destination ID)或者目标组标识(destination group ID)还没有相关方案。
发明内容
本公开的目的在于提供一种信息传输方法及节点设备，用以解决单播或 组播场景中如何设置目标标识(destination ID)或者目标组标识(destination group ID)目前还没有相关方案的问题。
为了实现上述目的，本公开提供了一种信息传输方法，应用于发送节点，包括：
获取高层标识ID；
将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
其中，对于组播或单播的发送节点，所述获取高层标识ID，包括：
将应用高层产生的组ID，确定为所述高层标识ID；
其中，所述组ID在单播或组播通信过程中保持不变。
其中，对于单播的发送节点，所述获取高层标识ID，包括：
生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID，所述新的终端UE ID在单播通信过程中保持不变；
或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
其中，将高层标识ID映射成底层ID，包括：
将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
或者，将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
其中，所述将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数之后，还包括：
利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
其中，所述目标消息为与PSCCH中的内容不相关的消息。
为了实现上述目的，本公开实施例还提供了一种信息传输方法，应用于接收节点，包括：
获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
其中，根据确定的传输模式，采用相应的接收处理方法进行接收处理，包括：
根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
为了实现上述目的，本公开实施例还提供了一种节点设备，所述节点设 备为发送节点，包括：收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现以下步骤：
获取高层标识ID；
将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
其中，对于组播或单播的发送节点，所述处理器执行所述程序时还实现以下步骤：
将应用高层产生的组ID，确定为所述高层标识ID；
其中，所述组ID在单播或组播通信过程中保持不变。
其中，对于单播的发送节点，所述处理器执行所述程序时还实现以下步骤：
生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID，所述新的终端UE ID在单播通信过程中保持不变；
或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
其中，所述处理器执行所述程序时还实现以下步骤：
将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
或者，将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
其中，所述处理器执行所述程序时还实现以下步骤：
利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
其中，所述目标消息为与PSCCH中的内容不相关的消息。
为了实现上述目的，本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现如上所述应用于发送节点的信息传输方法的步骤。
为了实现上述目的，本公开实施例还提供了一种节点设备，所述节点设备为接收节点，包括：收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序，所述处理器执行所述程序时实现以下步骤：
获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
其中，所述处理器执行所述程序时还实现以下步骤：
根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
为了实现上述目的，本公开实施例还提供了一种计算机可读存储介质，其上存储有计算机程序，该计算机程序被处理器执行时实现如上所述应用于接收节点的信息传输方法的步骤。
为了实现上述目的，本公开实施例还提供了一种节点设备，所述节点设备为发送节点，包括：
第一获取模块，用于获取高层标识ID；
映射模块，用于将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
第一指示模块，用于将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
其中，所述第一获取模块用于对于组播或单播的发送节点，将应用高层产生的组ID，确定为所述高层标识ID；
其中，所述组ID在单播或组播通信过程中保持不变。
其中，所述第一获取模块用于对于单播的发送节点，生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID，所述新的终端UE ID在单播通信过程中保持不变；
或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
其中，所述映射模块用于将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
或者，用于将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应 的组播ID集合以及广播传输方式对应的ID相互正交。
其中，上述节点设备，还包括：
第二指示模块，用于利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
其中，所述目标消息为与PSCCH中的内容不相关的消息。
为了实现上述目的，本公开实施例还提供了一种节点设备，所述节点设备为接收节点，包括：
第二获取模块，用于获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
确定模块，用于根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
处理模块，用于根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
其中，所述处理模块用于根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
本公开实施例具有以下有益效果：
本公开实施例的上述技术方案，获取高层标识ID；将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；将所述底层 ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点，使得接收节点根据该底层ID，确定传输模式，并根据传输模式进行相应的接收处理。
附图说明
图1为SL-SCH的示意图；
图2本公开实施例的信息传输方法的流程示意图之一；
图3本公开实施例的信息传输方法的流程示意图之二；
图4为本公开实施例的节点设备的结构框图；
图5为本公开实施例的节点设备的模块示意图之一；
图6为本公开实施例的节点设备的模块示意图之二。
具体实施方式
为使本公开要解决的技术问题、技术方案和优点更加清楚，下面将结合具体实施例及附图进行详细描述。
为使本领域技术人员能够更好地理解本公开实施例的信息传输方法，先进行如下说明。
本公开实施例媒体接入控制MAC层有单播、组播和广播之分，但是物理层PHY是全部广播的，底层不做区分。
如图1所示，直通逻辑信道(SL-SCH)字头由7个字段组成V/R/R/R/R/SRC/DST，固定长度为7字节。接收终端通过SRC来区分不同的发送用户。其中，每个字段代表的含义如表1所示。
字段 大小 含义以及赋值
V 4bits “0011”，代表广播
R 1bit 预留比特，0
R 1bit 预留比特，0
R 1bit 预留比特，0
R 1bit 预留比特，0
DST 24bit 目标ID
SRC 24bit ProSe UE ID
表1
其中，SRC：源层二ID(source Layer-2ID)，UE自分配自产生的ProSe(Proximity-based Services)UE ID。
另外，SCI中不包含目标ID，SA(SCI)总长度为48bits(除16bit CRC之外还剩余32bit)，指示的域及对应的bit数定义如下：
优先级：3bits；
资源预约：4bits；
初传与重传的频域资源位置；
初传与重传之间的时间间隔：4bits；
调制与编码MCS：5bits；
重传指示：1bit，表示当前是初传还是重传；
预留比特。
另外，application layer identifier即msg消息中的临时ID，也即L2 ID的变化与以下几个因素相关：
1)T5000定时器：取值可配置，1-65535秒；
2)地理位置变化：5min内地理位置变化小于2km，则证书certificate可以不变；
3)Cirtical event flag：即跟消息的优先级相关，对于高优先级的业务包不换。
即，L2 ID是一个per UE粒度的变量。
如图2所示，本公开实施例提供一种信息传输方法，应用于发送节点，该发送节点可具体为终端，该方法包括：
步骤201：获取高层标识ID。
本公开实施例中，媒体接入控制MAC层有单播、组播和广播之分，但是物理层PHY是全部广播的，底层不做区分。该高层ID包括单播中的目标ID或组播中的目标组ID(destination group ID)。
作为一种可选的实现方式，对于组播或单播的发送节点，所述获取高层标识ID，包括：
将应用高层产生的组ID，确定为所述高层标识ID。
其中，所述组ID在单播或组播通信过程中保持不变。
这里，应用高层产生的group ID(针对组头节点，成组的时候高层产生)作为高层ID；这个group ID在此次通信过程中保持不变，该组ID可以是多比特，也可以跟底层指示一样，比如为8比特。
对于参与单播的节点，新产生一个组ID(或连接connection ID)；这个group ID在此次通信过程中保持不变，等效于参与单播通信的节点对通过这个ID关联起来，类似组播通信；比如确定由发起连接建立的UE来决策，或者由响应连接建立的UE来决策；如果响应UE已维护相同的ID了，则可以拒绝，由发起连接建立的UE重新随机选择一个新的ID，该组ID可以是多比特，也可以跟底层指示一样，比如为8比特。
该实现方式中，对于组播节点，在连接建立过程中源UE和目标UE做协商或者交互，高层标识由组头来确定；对于单播节点，高层标识可由发起连接建立请求的发送节点和响应连接建立请求的接收节点共同协商交互和确认。
作为另一种可选的实现方式，对于单播的发送节点，所述获取高层标识ID，包括：
生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID，所述新的终端UE ID在单播通信过程中保持不变。
该新的终端UE ID可具体为新的prose UE ID(近端UE ID)。对于广播，高层按照相关的机制作变更处理，对于单播，引入新的prose UE ID，这个prose UE id在单播通信过程中保持不变，等效于参与单播通信的节点各自有各自的prose UE ID,一个单播通信双方有两个prose UE ID，对于该prose UE ID可以是多比特，也可以跟底层指示一样，比如为8比特。
或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
本公开实施例中的UE ID具体为prose UE ID。这里，通信双方都只维护连接建立当时的prose UE ID，一旦发送出去了，则整个通信过程中保持不变。即UE实际的高层ID按照相关规则做变化，但是SCI指示的为连接建立初始使用的prose UE ID。
需要说明的是，无论是单播还是组播，该高层ID信息都需要在连接建 立的过程中做交互。如通过以下两种方式进行交互。
1)连接建立物理层消息中包含该高层ID(层二ID)信息；对于接收端而言，直接由物理层可以获知这个信息。发送单播消息时，由底层直接做映射后发送。
2)连接建立过程，纯物理层信息不包含该高层ID消息，但连接建立过程涉及高层信息，MAC协议数据单元PDU头中包含prose UE(source L2 ID)。即需要接收端高层解析后通过层间交互得知。由高层发送给物理层，物理层做映射后存储，或者高层直接做映射后存储。
步骤202：将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数。
本公开实施例中通过预定映射规则将比特数较大的高层ID映射成比特数较小的底层ID，减少了信令开销。该预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合。其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。即单播ID集合、组播ID集合以及广播ID之间两两相互正交。
具体的，该步骤202包括：
将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID。
例如，广播规定一个特殊的ID，比如全0或者全1，其他ID通过特定的规则做映射，映射为除了广播ID外的其他ID。即单播和组播并不做进一步的区分。
或者，将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
例如，广播规定一个特殊的ID，比如全0或者全1，对于其他ID分为两部分，单播ID和组播ID。比如广播ID定义为255，单播ID定义为(0， 100)，组播ID定义为(101，254)，单播的上述高层ID(目标ID和组播的destination group ID)通过某种映射规则可以映射到8比特的底层ID。
步骤203：将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
进一步地，所述将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数之后，还包括：
利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
其中，所述目标消息为与PSCCH中的内容不相关的消息。
该目标消息的内容不做具体限定。
目前在进行扰码设计时，PSCCH不做终端特定(ue-specific)的加扰，PSSCH的加扰与PSCCH的循环冗余校验CRC相关，PSCCH的CRC与PSCCH的内容相关。即如果PSCCH正确解析，则PSSCH内容也可以正确解析。该种加扰方式对PSSCH的隐私保护度较低。本公开实施例中采用与PSCCH中的内容不相关的消息作为PSSCH加扰码对PSSCH进行加扰，或者，采用目标消息以及PSCCH中的内容对PSSCH进行加扰，该PSCCH中的内容与PSSCH加扰码存在映射关系，该映射关系是发送节点和接收节点在连接建立过程中协商确定的。
本公开实施例中，不用目标ID或目标组ID直接对PSSCH进行加扰，而是用目标消息或者目标消息和PSCCH中的内容对PSSCH进行加扰，增强了对PSSCH的隐私保护。
本公开实施例的信息传输方法，获取高层标识ID；将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点，使得接收节点根据该底层ID，确定传输模式，并根据传输模式进行相应的接收处理。
下面结合具体的实例来对本公开的信息传输方法进行说明。
实例一：通信双方都只维护连接建立当时的prose UE ID。
A和B两节点建立单播通信，A当时的prose UE ID(source L2 ID)为“11111111111100000000000”，B当时的prose UE ID(source L2 ID)为“000000000000111111111111”。单播通信过程中，A节点的prose UE ID变更多次(111000000000000000000000，11111111000000000000000等)，B节点的prose UE也变更多次(111111111111111110000000，000000000000000000001111等)；但只要A，B节点单播通信过程中，A，B节点SCI中指示物理层ID时，一直将当时的ID“11111111111100000000000”，“000000000000111111111111”作为参考，MAC ID可以跟着变化而变化，但物理层ID不做变更。
实例二：对于参与单播的节点，新产生一个group ID。
A节点发起连接建立，高层或者底层随机选择生成一个connection ID，“11111111111100000000000”，且后续做映射，或者直接产生一个8比特的“11100011”直接用于物理层ID。
新产生一个prose UE ID，也是同理。只是由用户各自的高层生成。
本公开实施例的信息传输方法，获取高层标识ID；将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点，使得接收节点根据该底层ID，确定传输模式，并根据传输模式进行相应的接收处理。
如图3所示，本公开实施例还提供了一种信息传输方法，应用于接收节点，该接收节点可具体为终端，该方法包括：
步骤301：获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID。
步骤302：根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式。
所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合。其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
步骤303：根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
具体的，根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
其中，资源抢占处理包括：设置单播优先级最高，组播优先级次之，广播优先级最低，高优先级可以抢占低优先级资源。
这里，对于资源排除的处理，可以是对不同的传输方式设置不同的资源排除级别，比如对单播占用的资源设置最高严格的资源排除，对组播占用的资源设置较高严格的资源排除，对广播占用的资源设置最低优先级的资源排除；这里严格与否可以表现在资源占用的次数，可以是测量量的门限设置等等。
本公开实施例中，对于接收节点而言，可以通过ID范畴和ID值来判定是具体的通信方式，即单播组播和广播；对于不同的通信方式，可以采用不同的处理机制，例如，对于单播，默认有反馈资源；对于组播，不存在反馈资源；或者，资源排除过程中可以采用不同的处理过程。
本公开实施例的信息传输方法，获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式；根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
如图4所示，本公开的实施例还提供了一种节点设备，所述节点设备为发送节点，具体的，该节点设备为终端，包括：收发机、存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，所述处理器执行所述计 算机程序时实现以下步骤：
获取高层标识ID；
将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
其中，在图4中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器400代表的一个或多个处理器和存储器420代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机410可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口430还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器400负责管理总线架构和通常的处理，存储器420可以存储处理器400在执行操作时所使用的数据。
可选的，对于组播或单播的发送节点，处理器400还用于读取存储器420中的程序，执行如下步骤：
将应用高层产生的组ID，确定为所述高层标识ID；
其中，所述组ID在单播或组播通信过程中保持不变。
可选的，对于单播的发送节点，处理器400还用于读取存储器420中的程序，执行如下步骤：
生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID，所述新的终端UE ID在单播通信过程中保持不变；
或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
可选的，处理器400还用于读取存储器420中的程序，执行如下步骤：
将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
或者，将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
可选的，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
处理器400还用于读取存储器420中的程序，执行如下步骤：
利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
其中，所述目标消息为与PSCCH中的内容不相关的消息。
本公开实施例的节点设备，获取高层标识ID；将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点，使得接收节点根据该底层ID，确定传输模式，并根据传输模式进行相应的接收处理。
在本公开的一些实施例中，还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现以下步骤：
获取高层标识ID；
将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
该程序被处理器执行时能实现上述应用于发送节点的方法实施例中的所有实现方式，为避免重复，此处不再赘述。
如图5所示，本公开实施例还提供了一种节点设备，所述节点设备为发送节点，包括：
第一获取模块501，用于获取高层标识ID；
映射模块502，用于将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
第一指示模块503，用于将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
本公开实施例的节点设备，所述第一获取模块501用于对于组播或单播的发送节点，将应用高层产生的组ID，确定为所述高层标识ID；
其中，所述组ID在单播或组播通信过程中保持不变。
本公开实施例的节点设备，所述第一获取模块501用于对于单播的发送节点，生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID，所述新的终端UE ID在单播通信过程中保持不变；
或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
本公开实施例的节点设备，所述映射模块502用于将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
或者，用于将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
本公开实施例的节点设备，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
本公开实施例的节点设备，还包括：
第二指示模块，用于利用物理直通共享信道PSSCH加扰码对PSSCH加 扰，将加扰后的PSSCH指示给接收节点；
其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
其中，所述目标消息为与PSCCH中的内容不相关的消息。
本公开实施例的节点设备，获取高层标识ID；将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点，使得接收节点根据该底层ID，确定传输模式，并根据传输模式进行相应的接收处理。
本公开实施例还提供了一种节点设备，所述节点设备为接收节点，该通信设备具体为终端，包括：收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序，该接收端的结构框图与图4所示的结构框图相同，所述处理器执行所述程序时实现以下步骤：
获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
可选的，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID相互正交。
可选的，所述处理器执行所述程序时还实现以下步骤：
根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接 收处理，所述HARQ反馈至少包括反馈资源是否存在；
和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
本公开实施例的节点设备，获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式；根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
在本公开的一些实施例中，还提供了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现以下步骤：
获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
该程序被处理器执行时能实现上述应用于接收节点的方法实施例中的所有实现方式，为避免重复，此处不再赘述。
如图6所示，本公开实施例还提供了一种节点设备，所述节点设备为接收节点，包括：
第二获取模块601，用于获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
确定模块602，用于根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
处理模块603，用于根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
本公开实施例的节点设备，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应 的组播ID集合以及广播传输方式对应的ID相互正交。
本公开实施例的节点设备，所述处理模块用于根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
本公开实施例的节点设备，获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式；根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
可以理解的是，本公开实施例描述的这些实施例可以用硬件、软件、固件、中间件、微码或其组合来实现。对于硬件实现，处理单元可以实现在一个或多个专用集成电路(Application Specific Integrated Circuits，ASIC)、数字信号处理器(Digital Signal Processing，DSP)、数字信号处理设备(DSP Device，DSPD)、可编程逻辑设备(Programmable Logic Device，PLD)、现场可编程门阵列(Field-Programmable Gate Array，FPGA)、通用处理器、控制器、微控制器、微处理器、用于执行本公开所述功能的其它电子单元或其组合中。
对于软件实现，可通过执行本公开实施例所述功能的模块(例如过程、函数等)来实现本公开实施例所述的技术。软件代码可存储在存储器中并通过处理器执行。存储器可以在处理器中或在处理器外部实现。
另外，在本公开各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本公开的技术方案本质上或者说对相关技术做出贡献的部分或者该技术方案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中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者 网络设备等)执行本公开各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
在本公开的各种实施例中，应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本公开实施例的实施过程构成任何限定。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (29)

  1. 一种信息传输方法，应用于发送节点，包括：
    获取高层标识ID；
    将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
    将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
  2. 根据权利要求1所述的信息传输方法，其中，对于组播或单播的发送节点，所述获取高层标识ID，包括：
    将应用高层产生的组ID，确定为所述高层标识ID。
  3. 根据权利要求1所述的信息传输方法，其中，对于单播的发送节点，所述获取高层标识ID，包括：
    生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID；
    或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
  4. 根据权利要求1所述的信息传输方法，其中，将高层标识ID映射成底层ID，包括：
    将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
    或者，将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
  5. 根据权利要求4所述的信息传输方法，其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
    或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID两两相互正交。
  6. 根据权利要求1所述的信息传输方法，其中，所述将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数之后，还包括：
    利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
    其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
    其中，所述目标消息为与PSCCH中的内容不相关的消息。
  7. 一种信息传输方法，应用于接收节点，包括：
    获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
    根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
    根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
  8. 根据权利要求7所述的信息传输方法，其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
    或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID两两相互正交。
  9. 根据权利要求7所述的信息传输方法，其中，根据确定的传输模式，采用相应的接收处理方法进行接收处理，包括：
    根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
    根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
    和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
  10. 一种节点设备，所述节点设备为发送节点，包括：收发机、存储器、 处理器及存储在存储器上并可在处理器上运行的程序，其中，所述处理器执行所述程序时实现以下步骤：
    获取高层标识ID；
    将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
    将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
  11. 根据权利要求10所述的节点设备，其中，对于组播或单播的发送节点，所述处理器执行所述程序时还实现以下步骤：
    将应用高层产生的组ID，确定为所述高层标识ID。
  12. 根据权利要求10所述的节点设备，其中，对于单播的发送节点，所述处理器执行所述程序时还实现以下步骤：
    生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID；
    或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
  13. 根据权利要求10所述的节点设备，其中，所述处理器执行所述程序时还实现以下步骤：
    将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
    或者，将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
  14. 根据权利要求13所述的节点设备，其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
    或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID两两相互正交。
  15. 根据权利要求10所述的节点设备，其中，所述处理器执行所述程序 时还实现以下步骤：
    利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
    其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
    其中，所述目标消息为与PSCCH中的内容不相关的消息。
  16. 一种计算机可读存储介质，其上存储有计算机程序，其中，该计算机程序被处理器执行时实现如权利要求1至6中任一项所述信息传输方法的步骤。
  17. 一种节点设备，所述节点设备为接收节点，包括：收发机、存储器、处理器及存储在存储器上并可在处理器上运行的程序，其中，所述处理器执行所述程序时实现以下步骤：
    获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
    根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
    根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
  18. 根据权利要求17所述的节点设备，其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
    或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID两两相互正交。
  19. 根据权利要求17所述的节点设备，其中，所述处理器执行所述程序时还实现以下步骤：
    根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
    根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接 收处理，所述HARQ反馈至少包括反馈资源是否存在；
    和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
  20. 一种计算机可读存储介质，其上存储有计算机程序，其中，该计算机程序被处理器执行时实现如权利要求7至9中任一项所述信息传输方法的步骤。
  21. 一种节点设备，所述节点设备为发送节点，包括：
    第一获取模块，用于获取高层标识ID；
    映射模块，用于将高层标识ID映射成底层ID，所述底层ID的比特数小于或等于高层ID的比特数；
    第一指示模块，用于将所述底层ID通过物理直通控制信道PSCCH的调度控制信息SCI指示给接收节点。
  22. 根据权利要求21所述的节点设备，其中，所述第一获取模块用于对于组播或单播的发送节点，将应用高层产生的组ID，确定为所述高层标识ID。
  23. 根据权利要求21所述的节点设备，其中，所述第一获取模块用于对于单播的发送节点，生成新的终端UE ID，将所述新的终端UE ID确定为所述高层标识ID；
    或者，将接收节点与发送节点建立连接时的UE ID确定为所述高层标识ID。
  24. 根据权利要求21所述的节点设备，其中，所述映射模块用于将所述高层标识ID通过预定映射规则进行映射，得到底层ID，所述底层ID为广播规定的预定ID之外的ID；
    或者，用于将属于单播传输方式的所述高层标识ID通过预定映射规则映射到第一ID集合，得到底层ID，将属于组播传输方式的所述高层ID通过预定映射规则映射到第二ID集合，得到底层ID。
  25. 根据权利要求24所述的节点设备，其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
    或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应 的组播ID集合以及广播传输方式对应的ID两两相互正交。
  26. 根据权利要求21所述的节点设备，还包括：
    第二指示模块，用于利用物理直通共享信道PSSCH加扰码对PSSCH加扰，将加扰后的PSSCH指示给接收节点；
    其中，所述PSSCH加扰码包括目标消息或者包括目标消息和PSCCH中的内容；
    其中，所述目标消息为与PSCCH中的内容不相关的消息。
  27. 一种节点设备，所述节点设备为接收节点，包括：
    第二获取模块，用于获取发送节点通过物理直通控制信道PSCCH的调度控制信息SCI指示的底层ID；
    确定模块，用于根据所述底层ID以及预定映射规则，确定发送节点发送消息的传输模式，所述传输模式包括单播模式、组播模式或广播模式；
    处理模块，用于根据确定的传输模式，采用相应的接收处理方法进行接收处理，其中，不同的传输模式采用不同的接收处理方法。
  28. 根据权利要求27所述的节点设备，其中，所述预定映射规则包括：广播传输方式对应一个预定的底层ID，单播传输方式和组播传输方式对应共享ID集合，且所述共享ID集合与所述预定的底层ID正交；
    或者，单播传输方式、组播传输方式及广播传输方式分别对应一个底层ID或ID集合，其中，单播传输方式对应的单播ID集合、组播传输方式对应的组播ID集合以及广播传输方式对应的ID两两相互正交。
  29. 根据权利要求27所述的节点设备，其中，所述处理模块用于根据确定的传输模式，按照相应的服务质量QoS处理进行接收处理，所述服务质量QoS处理至少包括：资源抢占处理；
    根据确定的传输模式，按照相应的混合自动重传请求HARQ反馈进行接收处理，所述HARQ反馈至少包括反馈资源是否存在；
    和/或，根据确定的传输模式，按照相应的资源排除机制进行接收处理。
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