WO2019214619A1 - 一种数据处理的方法及设备 - Google Patents

一种数据处理的方法及设备 Download PDF

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Publication number
WO2019214619A1
WO2019214619A1 PCT/CN2019/085868 CN2019085868W WO2019214619A1 WO 2019214619 A1 WO2019214619 A1 WO 2019214619A1 CN 2019085868 W CN2019085868 W CN 2019085868W WO 2019214619 A1 WO2019214619 A1 WO 2019214619A1
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WIPO (PCT)
Prior art keywords
communication device
relay node
data unit
message
information
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PCT/CN2019/085868
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English (en)
French (fr)
Inventor
姚楚婷
徐海博
朱元萍
刘亚林
王键
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19799452.8A priority Critical patent/EP3787336A4/en
Priority to US17/054,251 priority patent/US11665587B2/en
Publication of WO2019214619A1 publication Critical patent/WO2019214619A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations
    • H04B7/15507Relay station based processing for cell extension or control of coverage area
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • H04L1/1642Formats specially adapted for sequence numbers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/187Details of sliding window management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1887Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/32Flow control; Congestion control by discarding or delaying data units, e.g. packets or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/34Flow control; Congestion control ensuring sequence integrity, e.g. using sequence numbers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L2001/0092Error control systems characterised by the topology of the transmission link
    • H04L2001/0097Relays

Definitions

  • the present application relates to the field of communications and, more particularly, to a method and apparatus for data processing.
  • NR fifth generation
  • 5G 5G New Radio
  • NR New Radio
  • IAB Integrated Access and Backhaul
  • the donor base station Donor 5G NodeB, DgNB
  • DgNB can be directly connected to the core network, and can connect multiple relay nodes (Relay Nodes, RNs), and the relay nodes can connect to other relay nodes.
  • the link between the base stations (including the link between the donor base station and the relay node, and the link between the relay node and the relay node) is called a backhaul link.
  • the link between the user equipment and the base station (including the link between the donor base station and the user equipment, and the link between the relay node and the user equipment) is referred to as an access link.
  • a user equipment (UE) can be connected to a host base station or a relay node, and the user equipment is directly connected to the host base station, that is, a one-hop link.
  • the user equipment can also be connected to the host base station through one or more relay nodes, that is, a multi-hop link.
  • a user equipment may be directly connected to a base station, or a user equipment may be connected to a base station through a relay node.
  • the relay node is responsible for reordering the received out-of-order packets and submitting the radio link control (RLC) in the layer 3 protocol stack. Give it the upper layer Packet Data Convergence Protocol (PDCP) layer.
  • RLC radio link control
  • PDCP Packet Data Convergence Protocol
  • the relay node no longer has the reordering function for the RLC layer in the layer 2 protocol stack. Therefore, when the user equipment and the base station perform data processing in the multi-hop link of the 5G system, packet loss occurs, which seriously affects the accuracy of data transmission, reduces communication efficiency, and has a poor user experience.
  • the present invention provides a data processing method and device, which can solve the problem that packet loss occurs when data processing is performed by a user equipment and a host base station in a multi-hop link of a 5G system, and the accuracy of data transmission and data transmission are improved. Efficiency and improve the user experience.
  • a data processing method wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first device sends a first data unit group, where the first data unit group is in a first sequence range
  • the first device determines a second sequence range based on the first information.
  • the first device may send the data unit in the first sequence range, and the first device according to the data in the first data unit group that has been received and/or not received by the second device.
  • the first information of the unit determines the second sequence range, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, improving the accuracy of data transmission and the efficiency of data transmission.
  • the first device may be a terminal device, and the second device may be a base station. Transmitting, by the terminal device, a first data unit group, where the first data unit group is in a first sequence; the terminal device receives first information by using the at least one relay node, where the first information is used to indicate that the host base station has received / or a data unit in the first data unit group not received; the terminal device determines a second sequence range based on the first information.
  • the first device may be a host base station, and the second device may be a terminal device.
  • the host base station sends a first data unit group, where the first data unit group is in the first sequence; the host base station receives the first information by using the at least one relay node, where the first information is used to indicate that the terminal device has received the And/or a data unit in the first data unit group that is not received; the host base station determines a second sequence range based on the first information.
  • the first device determines the second sequence range according to the first information, including:
  • the first sequence range is extended by N sequences to obtain the second sequence range, where , N is a positive integer.
  • the first device by using the at least one relay node, receives the first information, including:
  • the first device receives a first message sent by the second device that is forwarded by the at least one relay node, where the first message includes first information.
  • the first message is a status report of the PDCP entity
  • the first message is a status report of the Radio Route Control Protocol RLC entity.
  • the first device by using the at least one relay node, receives the first information, including:
  • the first device receives a second message obtained by the at least one relay node according to the first message sent by the second device, where the second message includes the first information.
  • the second message is sent by the at least one relay node according to the first message and the at least one relay node Determined by the number mapping relationship with the receiving data unit.
  • the second message is a status report of the RLC entity.
  • the first message is a periodically sent message.
  • the stability of the communication system is ensured by periodically transmitting the first message.
  • the method before the first device receives the first message of the second device that is forwarded by the at least one relay node, the method is Also includes:
  • the first device sends a query request to the second device.
  • a second aspect provides a data processing method, wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first relay node Receiving, by the first relay node, the first information sent by the previous hop relay node or the second device of the first relay node, where the first information is used to indicate that the second device has received and/or received a data unit in the first data unit group, the first data unit group being within a first sequence range;
  • the first relay node forwards the first information.
  • the first device may send the data unit in the first sequence range, and the first device according to the data in the first data unit group that has been received and/or not received by the second device.
  • the first information of the unit determines a second sequence range, where the first information sent by the second device is forwarded to the first device by the first relay node, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving The accuracy of data transmission and the efficiency of data transmission.
  • a third aspect provides a data processing method, wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first relay node Receiving, by the first relay node, the first information sent by the second device, where the first information is used to indicate that the data unit in the first data unit group that the second device has received and/or received, the first data The unit group is within the first sequence range;
  • the first relay node sends the second information, where the second information is determined according to the number mapping relationship between the sending and receiving data units maintained by the first relay node and the first information.
  • the first device may send the data unit in the first sequence range, and the first device according to the data in the first data unit group that has been received and/or not received by the second device.
  • the first information of the unit determines a second sequence range, where the first relay node processes the first information sent by the second device to obtain the second information, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end.
  • a fourth aspect provides a data processing method, wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first relay node adds a number to the data unit in the first data unit group.
  • the first relay node can add a number to the data unit, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, improving the accuracy of data transmission and the efficiency of data transmission.
  • the first relay node may be a relay node that communicates directly with the first device.
  • the first relay node adds a number to the data unit in the first data unit group, including:
  • the first relay node adds a number to the data units in the first data unit group in the order of reception.
  • the method before the first relay node adds a number to the data unit in the first data unit group, the method also includes:
  • the first relay node sorts the data units in the first data unit group.
  • the adaptation layer of the first relay node has a sorting function
  • the radio path control protocol RLC entity of the first relay node has a sorting function
  • the adaptation layer of the first relay node has the function of adding the number.
  • the adaptation layer of the first relay node has a numbered function or a sorted function.
  • the adaptation layer of the first relay node has a numbered function and a sorted function.
  • the radio path control protocol RLC entity of the first relay node has a sorting function and the adaptation layer of the first relay node has the function of adding the number.
  • the radio path control protocol RLC entity of the first relay node has a sorting function or the adaptation layer of the first relay node has the function of adding the number.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a fifth aspect provides a data processing method, wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the second relay node receives a data unit sent by the relay node connected to the second relay node, where the data unit has a number;
  • the second relay node sorts the numbered data units.
  • the second relay node can sort the numbered data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the second relay node may be an intermediate relay node, that is, a relay node that does not directly communicate with the first device or the second device.
  • the number is added by the first relay node, where the first relay node is a relay node that directly communicates with the terminal device; or
  • the number is added by a relay node that is in direct communication with the second relay node.
  • the adaptation layer of the second relay node has a sorting function
  • the radio path control protocol RLC entity of the second relay node has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a data processing method wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first relay node receives the numbered data unit sent by the at least one relay node
  • the first relay node sorts the data unit according to the number
  • the first relay node sends the first data unit group to the first device in the numbered order, and the first data unit group is the sorted data unit.
  • the first relay node can add or number the data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the number is added to an adaptation layer of the second device.
  • the adaptation layer of the first relay node has a sorting function
  • the radio path control protocol RLC entity of the first relay node has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a data processing method wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the second relay node receives a data unit sent by the relay node connected to the second relay node, where the data unit has a number;
  • the second relay node sorts the numbered data units.
  • the second relay node can sort the numbered data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the number is added by an adaptation layer of the second device.
  • This number is added to the relay node that is in direct communication with the second relay node.
  • the adaptation layer of the second relay node has a sorting function
  • the radio path control protocol RLC entity of the second relay node has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a data processing method wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first device determines a first sequence range according to the hop count information, where the first sequence range is used to indicate a sequence number range allocated by the first device.
  • the first sequence range is less than or equal to the number of the allocated sequence numbers, and the number of the allocated sequence numbers is a sequence number space/hop count/2.
  • the third message is a broadcast message.
  • the third message is a message that is sent by using dedicated signaling.
  • the third message is sent by the second device.
  • the third message is sent by the at least one relay node.
  • a ninth aspect provides a data processing method, wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first relay node determines first hop count information, and the first relay node is a relay node that directly communicates with the first device;
  • the first relay node sends a third message to the first device, where the third message includes the first hop count information
  • the first hop count information is one of the number of the at least one relay node or the number of the at least one relay node.
  • the sending, by the first device, the third message includes:
  • the third message is sent to the first device by broadcast.
  • the sending, by the first device, the third message includes:
  • the third message is sent to the first device by dedicated signaling.
  • the first relay node determines the first hop count information, including:
  • the first relay node adds one second hop information broadcast by the previous hop relay node of the first relay node to obtain the first hop count information.
  • a tenth aspect provides a data processing method, wherein a first device communicates with a second device by using at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the method includes:
  • the first device processes the first data unit according to the count value carried by the first data unit.
  • the transmitting end has a maximum edge of the sending window, and the receiving end does not have a maximum edge of the receiving window, and the data unit is processed by transmitting the data unit carrying the count value, thereby avoiding the data unit exceeding
  • the packet loss problem caused by the receiving window of the receiving end improves the accuracy of data transmission and the efficiency of data transmission.
  • the processing, by the first device, the first data unit, according to the count value carried by the first data unit includes:
  • the first data unit is discarded.
  • the method further includes:
  • the first data unit is stored, and the first data unit is submitted to an upper layer of the PDCP entity in the order of the count value of the first data unit.
  • the first data unit is within the first sequence.
  • the first sequence range indicates that the second device allows the allocated range of count values, or the second device sends the first data The range of count values allowed for the unit.
  • the size of the first sequence range is a half of a sequence number space or less than a half of a sequence number space.
  • a data processing method wherein a first device communicates with a second device by at least one relay node, the at least one relay node does not have a packet data convergence protocol PDCP entity, the method comprising :
  • the first data unit belongs to a first sequence range, and the first sequence range is used to indicate a range of count values that the second device is allowed to allocate.
  • the size of the first sequence range is a half of a sequence number space or less than a half of a sequence number space.
  • a communication device communicating with a second device by at least one relay node, wherein the at least one relay node does not have a packet data convergence protocol PDCP entity, the communication device include:
  • a transceiver module configured to send a first data unit group, where the first data unit group is in a first sequence range
  • the transceiver module is further configured to receive, by the at least one relay node, first information, where the first information is used to indicate that the first data unit that the second device has received and/or received a unit of data in the group;
  • a processing module configured to determine a second sequence range according to the first information.
  • the processing module is further configured to:
  • the first sequence range is extended by N sequences to obtain the second Sequence range, where N is a positive integer.
  • the transceiver module is further configured to:
  • the first message is a status report of a PDCP entity
  • the first message is a status report of a Radio Route Control Protocol RLC entity.
  • the transceiver module is further configured to: receive the at least one relay node according to the second The second message obtained by the first message sent by the device, where the second message includes the first information.
  • the second message is that the at least one relay node is configured according to the first message and the at least one relay The number relationship between the transmission and reception data units maintained by the node is determined.
  • the second message is a status report of the RLC entity.
  • the first message is a periodically sent message.
  • the communications device further includes:
  • the query module is configured to send a query request to the second device.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver module configured to receive first information sent by a previous hop relay node or a second device of the first relay node, where the first information is used to indicate that the second device has received and/or not a data unit in the received first data unit group, the first data unit group being within a first sequence range;
  • the transceiver module is further configured to forward the first information.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver module configured to receive first information sent by the second device, where the first information is used to indicate a data unit in the first data unit group that has been received and/or not received by the second device, The first data unit group is within the first sequence range;
  • a processing module configured to generate a second message, where the second information is determined according to a number mapping relationship between the sending and receiving data units maintained by the communications device and the first information.
  • the transceiver module is further configured to send the second information.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver module configured to receive a first data unit group sent by the first device
  • a processing module configured to add a number to the data unit in the first data unit group.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • the processing module is further configured to add a number to the data units in the first data unit group in a receiving order.
  • the processing module is further configured to sort the data units in the first data unit group .
  • the adaptation layer of the communication device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function
  • the adaptation layer of the communication device has the function of adding the number.
  • the adaptation layer is located above a radio link control RLC entity.
  • the adaptation layer is located above a medium access control MAC entity.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver module configured to receive a data unit sent by a relay node connected to the communication device, where the data unit has a number
  • a processing module configured to sort the numbered data units.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the second relay node ie the communication device, can be an intermediate relay node.
  • the number is added by a first relay node, and the first relay node is a relay that directly communicates with the first device. Node; or
  • the number is added by a relay node that is in direct communication with the communication device.
  • the adaptation layer of the first relay node has a sorting function
  • the radio path control protocol RLC entity of the first relay node has a sorting function
  • the adaptation layer of the first relay node has the function of adding the number.
  • the adaptation layer of the communications device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function.
  • the adaptation layer is located above a radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a communication device wherein the first device communicates with the second device by the at least one communication device, the at least one relay node does not have a packet data convergence protocol PDCP entity, the communication device includes:
  • transceiver module configured to receive a numbered data unit sent by at least one relay node
  • a processing module configured to sort the data unit according to the number
  • the transceiver module is further configured to send the first data unit group to the first device in the numbered order, where the first data unit group is the sorted data unit.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • the first relay node can add or number the data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the number is added to an adaptation layer of the second device.
  • the adaptation layer of the communication device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • the eighteenth aspect provides a communication device, wherein the first device communicates with the second device by using at least one communication device, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the party communication device includes:
  • a transceiver module configured to receive a data unit sent by a relay node connected to the communication device, where the data unit has a number
  • a processing module for sorting the numbered data units for sorting the numbered data units.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the second relay node ie the communication device, can be an intermediate relay node.
  • the second relay node can sort the numbered data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the number is added to an adaptation layer of the second device.
  • This number is added to the relay node that is in direct communication with the second relay node.
  • the adaptation layer of the communication device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a communication device communicating with a second device by at least one relay node, the at least one relay node having no packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver module configured to receive a third message, where the third message includes hop count information that the first device communicates with the second device;
  • a processing module configured to determine, according to the hop count information, a first sequence range, where the first sequence range is used to indicate a sequence number range allocated by the first device.
  • the first sequence range is less than or equal to the number of the allocated sequence numbers, and the number of the allocated sequence numbers is a sequence number space/hop count/2 .
  • the third message is a broadcast message.
  • the third message is a message that is sent by dedicated signaling.
  • the third message is sent by the second device.
  • the third message is sent by the at least one relay node.
  • a communication device communicating with the second device by the at least one communication device, the at least one communication device having no packet data convergence protocol PDCP entity, the communication device comprising:
  • a processing module configured to determine first hop count information, where the communication module is a relay node that directly communicates with the first device;
  • a transceiver module configured to send a third message to the first device, where the third message includes the first hop count information
  • the first hop count information is one of the number of the at least one communication device or the number of the at least one communication device.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • the transceiver module is further configured to:
  • the third message is sent to the first device by broadcast.
  • the transceiver module is further configured to:
  • the third message is sent to the first device by dedicated signaling.
  • the processing module is further configured to:
  • the second hop information broadcasted by the previous hop relay node of the communication device is incremented by one to obtain the first hop count information.
  • a communication device communicating with a second device by at least one relay node, the at least one relay node having no packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver module configured to receive, by using at least one relay node, a first data unit that is sent by the second device, where the first data unit carries a count value
  • the processing module is configured to process the first data unit according to the count value carried by the first data unit.
  • the transmitting end has a maximum edge of the sending window, and the receiving end does not have a maximum edge of the receiving window, and the data unit is processed by transmitting the data unit carrying the count value, thereby avoiding the data unit exceeding
  • the packet loss problem caused by the receiving window of the receiving end improves the accuracy of data transmission and the efficiency of data transmission.
  • the processing module is further configured to:
  • the first data unit is discarded.
  • the communications device further includes:
  • a storage module configured to store the first data unit, and submit the first data unit to an upper layer of the PDCP entity in the order of the count value of the first data unit.
  • the first data unit is within the first sequence.
  • the first sequence range indicates a range of count values that the second device allows to be allocated, or the second device sends the The range of count values allowed for a data unit.
  • the size of the first sequence range is a half of a sequence number space or less than a half of a sequence number space.
  • a communication device communicating with the communication device by using at least one relay node, the at least one relay node having no packet data convergence protocol PDCP entity, the communication device comprising:
  • the transceiver module is configured to send, by the at least one relay node, the first data unit to the first device, where the first data unit carries a count value;
  • the first data unit belongs to a first sequence range, and the first sequence range is used to indicate a range of count values that the second device is allowed to allocate.
  • the size of the first sequence range is a half of a sequence number space or less than a half of a sequence number space.
  • a communication device wherein the communication device communicates with a second device through at least one relay node, wherein the at least one relay node does not have a packet data convergence protocol PDCP entity, the communication Equipment includes:
  • a transceiver configured to send a first data unit group, where the first data unit group is in a first sequence range
  • the transceiver is further configured to receive, by the at least one relay node, first information, where the first information is used to indicate that the first data unit that the second device has received and/or received a unit of data in the group;
  • a processor configured to determine a second sequence range according to the first information.
  • the processor is further configured to:
  • the first sequence range is extended by N sequences to obtain the second Sequence range, where N is a positive integer.
  • the transceiver is further configured to:
  • the first message is a status report of a PDCP entity
  • the first message is a status report of a Radio Route Control Protocol RLC entity.
  • the transceiver is further configured to: receive the at least one relay node according to the a second message obtained by the first message sent by the second device, where the second message includes the first information.
  • the second message is that the at least one relay node is configured according to the first message and the at least one Determined by the number mapping relationship between the transmit and receive data units maintained by the node.
  • the second message is a status report of the RLC entity.
  • the first message is a periodically sent message.
  • the transceiver is further configured to send a query request to the second device.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising :
  • a transceiver configured to receive first information sent by a previous hop relay node or a second device of the first relay node, where the first information is used to indicate that the second device has received and/or not a data unit in the received first data unit group, the first data unit group being within a first sequence range;
  • the transceiver is further configured to forward the first information.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising :
  • a transceiver configured to receive first information sent by the second device, where the first information is used to indicate that the second device has received and/or received a data unit in the first data unit group, The first data unit group is within the first sequence range;
  • a processor configured to generate a second message, where the second information is determined according to a number mapping relationship between the sending and receiving data units maintained by the communications device and the first information.
  • the transceiver is further configured to send the second information.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • a communication device communicating with the second device by the at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising :
  • a transceiver configured to receive a first data unit group sent by the first device
  • a processor configured to add a number to the data unit in the first data unit group.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • the processor is further configured to add a number to the data units in the first data unit group in a receiving order.
  • the processor is further configured to use the data unit in the first data unit group Sort.
  • the adaptation layer of the communication device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function
  • the adaptation layer of the communication device has the function of adding the number.
  • the adaptation layer is located above a radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a communication device communicating with a second device by at least one communication device, wherein the at least one communication device does not have a packet data convergence protocol PDCP entity, the communication device comprising :
  • a transceiver configured to receive a data unit sent by a relay node connected to the communication device, where the data unit has a number
  • a processor configured to sort the numbered data units.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the second relay node ie the communication device, can be an intermediate relay node.
  • the number is added by a first relay node, where the first relay node is in direct communication with the first device.
  • Relay node or
  • the number is added by a relay node that is in direct communication with the communication device.
  • the adaptation layer of the first relay node has a sorting function
  • the radio path control protocol RLC entity of the first relay node has a sorting function
  • the adaptation layer of the first relay node has the function of adding the number.
  • the adaptation layer of the communications device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function.
  • the adaptation layer is located above a radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a communication device communicating with a second device by at least one relay node, the at least one relay node having no packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver configured to receive a third message, where the third message includes hop count information that the first device communicates with the second device;
  • a processor configured to determine, according to the hop count information, a first sequence range, where the first sequence range is used to indicate a sequence number range allocated by the first device.
  • the first sequence range is less than or equal to the number of the allocated sequence numbers, and the number of the allocated sequence numbers is a sequence number space/hop count /2.
  • the third message is a broadcast message.
  • the third message is a message that is sent by using dedicated signaling.
  • the third message is sent by the second device.
  • the third message is sent by the at least one relay node of.
  • the twenty-seventh aspect provides a communication device, wherein the first device communicates with the second device by using at least one communication device, the at least one relay node does not have a packet data convergence protocol PDCP entity, and the communication device includes:
  • a transceiver configured to receive the numbered data unit sent by the at least one relay node
  • a processor configured to sort the data unit according to the number
  • the transceiver is further configured to send the first data unit group to the first device in the numbered order, where the first data unit group is the sorted data unit.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • the first relay node can add or number the data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the number is added to an adaptation layer of the second device.
  • the adaptation layer of the communication device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a communication device wherein the first device communicates with the second device through the at least one communication device, the at least one relay node does not have a packet data convergence protocol PDCP entity, the party communication device includes :
  • a transceiver configured to receive a data unit sent by a relay node connected to the communication device, where the data unit has a number
  • a processor for sorting the numbered data units is a processor for sorting the numbered data units.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the second relay node ie the communication device, can be an intermediate relay node.
  • the second relay node can sort the numbered data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • the number is added to an adaptation layer of the second device.
  • This number is added to the relay node that is in direct communication with the second relay node.
  • the adaptation layer of the communication device has a sorting function
  • the radio path control protocol RLC entity of the communication device has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • a communication device communicating with a second device by the at least one communication device, the at least one communication device having no packet data convergence protocol PDCP entity, the communication device comprising:
  • the communication device is a relay node that directly communicates with the first device
  • a transceiver module configured to send a third message to the first device, where the third message includes the first hop count information
  • the first hop count information is one of the number of the at least one communication device or the number of the at least one communication device.
  • the communication device in the embodiment of the present application may correspond to the relay node in the foregoing method.
  • the first relay node For example, the first relay node.
  • the transceiver is further configured to:
  • the third message is sent to the first device by broadcast.
  • the transceiver is further configured to:
  • the third message is sent to the first device by dedicated signaling.
  • the processor is further configured to:
  • the second hop information broadcasted by the previous hop relay node of the communication device is incremented by one to obtain the first hop count information.
  • a communication device communicating with a second device by at least one relay node, the at least one relay node having no packet data convergence protocol PDCP entity, the communication device comprising:
  • a transceiver configured to receive, by using at least one relay node, a first data unit that is sent by the second device, where the first data unit carries a count value
  • the processor is configured to process the first data unit according to the count value carried by the first data unit.
  • the transmitting end has a maximum edge of the sending window, and the receiving end does not have a maximum edge of the receiving window, and the data unit is processed by transmitting the data unit carrying the count value, thereby avoiding the data unit exceeding
  • the packet loss problem caused by the receiving window of the receiving end improves the accuracy of data transmission and the efficiency of data transmission.
  • the processor is further configured to:
  • the first data unit is discarded.
  • the communications device further includes:
  • a memory for storing the first data unit, and submitting the first data unit to an upper layer of the PDCP entity in the order of the count value of the first data unit.
  • the first data unit is within the first sequence.
  • the first sequence range indicates a range of count values allowed by the second device, or the second device sends the first The range of count values allowed for data units.
  • the size of the first sequence range is a half of a sequence number space or less than a half of a sequence number space.
  • a communication device communicating with the communication device by using at least one relay node, the at least one relay node having no packet data convergence protocol PDCP entity, the communication device comprising:
  • the first data unit belongs to a first sequence range, and the first sequence range is used to indicate a range of count values that the second device is allowed to allocate.
  • the size of the first sequence range is a half of a sequence number space or less than a half of a sequence number space.
  • a chip system for use in a communication device, the chip system comprising: at least one processor, at least one memory, and an interface circuit, wherein the interface circuit is responsible for information interaction between the chip system and the outside world, At least one memory, the interface circuit, and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform the method of the communication device of the method of the various aspects described above operating.
  • a thirty-third aspect a communication system is provided, comprising: a communication device; wherein the communication device is the communication device of the above aspects.
  • a thirty-fourth aspect a computer program product for use in a communication device, the computer program product comprising a series of instructions, when the instruction is executed, to perform the method of the communication device in the method of the above aspects operating.
  • a computer readable storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the various aspects described above.
  • FIG. 1 is a schematic diagram of a communication system suitable for the method of data processing of the present application.
  • FIG. 2 is a schematic structural diagram of a scenario 200 of a method of data processing implemented in accordance with the present application.
  • COUNT count value
  • FIG. 4 is a schematic diagram of a method of data unit processing in accordance with an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a method of data unit processing according to an embodiment of the present application.
  • FIG. 6 is a schematic interaction flow diagram of a method of data unit processing in accordance with an embodiment of the present application.
  • FIG. 7 is a schematic interaction flow diagram of a method of data unit processing in another embodiment of the present application.
  • FIG. 8 is a schematic interaction flowchart of a method of data unit processing according to another embodiment of the present application.
  • FIG. 9 is a schematic diagram of a method of data unit processing in another embodiment of the present application.
  • FIG. 10 is a schematic diagram of a method of data unit processing according to still another embodiment of the present application.
  • FIG. 11 is a schematic diagram of a method of data unit processing in accordance with still another embodiment of the present application.
  • FIG. 12 is a schematic diagram of a method of data unit processing according to still another embodiment of the present application.
  • FIG. 13 is a schematic interaction flowchart of a method for data unit processing according to still another embodiment of the present application.
  • FIG. 14 is a schematic interaction flowchart of a method for data unit processing according to still another embodiment of the present application.
  • FIG. 15 is a schematic diagram of a method of data unit processing according to still another embodiment of the present application.
  • 16 is a schematic interaction flow diagram of a method of data unit processing in still another embodiment of the present application.
  • Figure 17 is a schematic block diagram of a communication device 1200 in accordance with one embodiment of the present application.
  • FIG. 18 is a schematic block diagram of a communication device 1300 according to an embodiment of the present application.
  • 19 is a schematic block diagram of a communication device 1400 in accordance with one embodiment of the present application.
  • 20 is a schematic block diagram of a communication device 1500 of one embodiment of the present application.
  • the relay node is a layer 2 relay, that is, does not include the PDCP layer
  • the RLC layer of the relay node since the RLC layer of the relay node does not have the reordering function, the transmission in the multi-hop link will be at each hop. Further disordered on the basis of the previous hop.
  • the problem may occur when the user equipment and the base station perform data processing in the multi-hop link of the 5G system, which seriously affects the accuracy of data transmission, reduces communication efficiency, and has poor user experience.
  • the solution proposed below can solve the problem of packet loss when the user equipment and the base station perform data processing in the multi-hop link of the 5G system, improve the accuracy of data transmission, the efficiency of data transmission, and improve the user experience.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the terminal device in the embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or User device.
  • the terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may be a Global System of Mobile communication (GSM) system or Code Division Multiple Access (CDMA).
  • Base Transceiver Station which may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, or an evolved base station in an LTE system (Evolutional The NodeB, eNB or eNodeB) may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and a future.
  • the network device in the 5G network or the network device in the PLMN network in the future is not limited in this embodiment.
  • the communication system 100 includes a network device 102 that can include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , encoder, demultiplexer or antenna, etc.).
  • a network device 102 can include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114.
  • network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , encoder, demultiplexer or antenna, etc.).
  • Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122. However, it will be appreciated that network device 102 can communicate with any number of terminal devices similar to terminal device 116 or 122.
  • Terminal devices 116 and 122 can be, for example, cellular telephones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other for communicating over wireless communication system 100. Suitable for equipment.
  • terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120.
  • terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
  • the forward link 118 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize a different frequency band than that used by the reverse link 126.
  • forward link 118 and reverse link 120 can use a common frequency band
  • forward link 124 and reverse link 126 can use a common frequency band
  • Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102.
  • the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area.
  • the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124.
  • the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.
  • network device 102, terminal device 116, or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device can encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
  • Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
  • the communication system 100 may be a PLMN network or a device-to-device (D2D) network or a machine to machine (M2M) network or other network.
  • D2D device-to-device
  • M2M machine to machine
  • FIG. 1 is only a simplified schematic diagram of an example in the network. Other network devices may also be included, which are not shown in FIG.
  • the system 200 includes an access network device including a donor base station (Donor 5G NodeB, DgNB) 210, one or more relay nodes (RNs), for example, a relay node 201, and a relay node 102. And the relay node 203.
  • the access network device can communicate with a plurality of terminal devices (e.g., terminal device 221 and terminal device 222).
  • the network structure of the IAB is supported by the 5G new air interface technology to support the combination of access and backhaul technologies.
  • the donor base station and the core network can be directly connected.
  • multiple relay nodes may be connected, and the relay node may be connected to other relay nodes, where the relay node may be a base station.
  • the path between the base stations for example, the path between the donor base station and the relay node, and the path between the relay node and the relay node may be referred to as a backhaul path.
  • the terminal device can be connected to the host base station or the relay node, and the terminal device is directly connected to the host base station, that is, a one-hop path.
  • the terminal device can also be connected to the host base station through one or more relay nodes, that is, a multi-hop path.
  • the path between the terminal device and the base station for example, the path between the host base station and the terminal device, and the path between the relay node and the terminal device are referred to as an access path.
  • the terminal device can communicate with the host base station through multiple relay nodes.
  • the relay node can provide a larger network coverage to reduce communication costs;
  • the relay node provides a communication method for wireless transmission.
  • FIG. 2 is only a simplified schematic diagram of an example, and other access network devices may also be included in the network, which are not shown in FIG. 2.
  • a data unit When a data unit is transmitted in an air interface of a 5G system, although the data unit (service data unit) is sequentially transmitted at the transmitting end (sending device), the receiving operation is received at the receiving end (receiving device) due to the parallel operation of the plurality of HARQ processes. The order is likely to be out of order.
  • the data unit is added with a sequence number (SN) at the PDCP layer of the transmitting end, and the receiving entity of the PDCP uses the SN for reordering and repeated detection to ensure sequential submission and detection of repeated units.
  • the transmitting end and the receiving end also need to maintain the same Hyper Frame Number (HFN).
  • the purpose of using the HFN is to reduce the number of bits transmitted on the air interface, that is, only the transmission sequence number.
  • the combination of SN and HFN constitutes the count (COUNT) value of the data unit.
  • COUNT count
  • Each data unit has a COUNT value
  • the transmitting end (transmitting device) air interface is sent in the order of the COUNT value of the data unit from small to large.
  • the transmitting end needs to maintain that the transmitted SN does not exceed half of the total SN number, so as to avoid confusion of the frame number.
  • the receiving end will also use the length of half of the SN number as the receiving window.
  • the received data unit may also be out of order, but since the transmitting end sends no more than half of the SN number of data units on the air interface, the received data unit is usually delivered to the PDCP layer in an out-of-order manner, but although The out-of-order will also be in the receiving window.
  • the PDCP layer will sort the data units in the receiving window by COUNT value and submit them to the upper layer in order according to the COUNT value.
  • COUNT count value
  • the COUNT value of the data unit is composed of an SN field and an HFN field, wherein the sum of the bit number (bit) of the HFN field portion and the bit number (bit) of the SN field portion is 32 bits, that is, data.
  • the COUNT field in the unit is 32 bits.
  • the PDCP entity of the receiving device reorders the received data units according to the COUNT value of the data unit (service data unit).
  • the sorting and delivery process is as follows:
  • COUNT value of the received data unit is within a valid receiving window: that is, whether it is greater than or equal to the next COUNT value to be submitted. If it is not in the valid receiving window, the received data unit will be discarded. If there is a valid receiving window, valid data units will be present in the PDCP layer and then delivered in order.
  • FIG. 4 is a schematic flow chart showing a method of data unit processing in the prior art.
  • the method of data unit processing in FIG. 3 can be used in the communication system shown in FIG. 2.
  • the transmission sequence number range is controlled by the feedback of the RLC layer, which is a relatively straightforward method for controlling data that does not transmit more than half of the SN;
  • the data (UM DRB) transmission can control the transmission sequence number range through feedback of the HARQ process of the MAC, so as to not transmit more than half of the SN data.
  • the terminal device sends a data unit with a sequence number of 1 to N in the sending window, where the sending window is a sequence number range that can be sent by the current sending end, and the first relay is caused by the out-of-order of the air interface.
  • An out-of-order data unit is received at the node.
  • the first relay node may successfully receive the N+1 data after receiving the data unit No. 1 sent by the sender.
  • Unit, and data units 2 to N are in retransmission state.
  • the data units received in the first hop order will continue to be sent out in the order received, for example, the out-of-order data unit received by the relay node 1 will continue to be sent to the relay node 2.
  • the transmitting end determines the range of the allocated sequence number or the “transmission window” according to the feedback of the received data unit of the first hop, that is, more data can be sent by the sending end to the node of the first hop, which will result in the air interface.
  • there are data units in the receiving window for example, data units having serial numbers 1 to N
  • data units outside the receiving window for example, data units having serial numbers 1 to N
  • the data in the receiving window may arrive at the receiving end before the data outside the receiving window, and the data unit received by the receiving end exceeds the receiving window, so that the receiving end performs the data unit. throw away.
  • the receiving end can only identify the data unit in the receiving window corresponding to the sending window of the sending end, and the receiving end of the data unit beyond the receiving window will recognize the expired data, and an error will occur. It is assumed that the data unit has been received and discarded. For example, if the serial number of the corresponding data unit in the transmission window is 1 to N, then the receiving window of the receiving end can identify the data unit with the serial number 1 to N, and the data unit other than the 1st to the Nth is The data unit has been received for discarding during the last round.
  • the uplink data transmission for Acknowledge Mode is shown in Figure 4.
  • N PDCP data units can be simultaneously transmitted on the air interface at the same time.
  • the first hop receiver does not have a packet over-window caused by the air interface out-of-order.
  • the transmitting end receives the feedback of the No. 1 data unit of the first hop receiving end, the N+1 data unit may be issued.
  • the receiving end of the first hop (relay node 1) first receives the N+1 data unit sent by the transmitting end, and then receives the No. 2 number. Data unit. Since the RLC layer no longer has the reordering function in the 5G system, and the PDCP layer in the layer 2 protocol stack is responsible for reordering the received out-of-order data units, the relay node does not have the PDCP layer and therefore cannot be reordered. .
  • the relay node 1 transmits (1, N+1, 2, N%) in the order of the currently received data unit, and when received at the receiving end (relay node 2) of the second hop, may be received first due to out-of-order It is the N+1 data unit of PDCP, and the receiving order may be (N+1, 1, N, 2). If transmitted to the host base station, the order of receiving data units may be (N+1, 1, N, 2). Since the current receiving window is 1 to N, the N+1 data unit will be directly considered to be out of reception. The window is discarded.
  • the uplink data transmission for Unacknowledged Mode is shown in Figure 5.
  • the RLC layer does not number the data units that are not split. Therefore, from the perspective of RLC, how many data units are given to the RLC by the upper layer, if the air interface resource allows, how many data units may be sent by the air interface, due to the out-of-order of the data unit on the air interface, and in the relay
  • the size of the transmission window on the air interface is not controlled, which may cause a large number of data units to be lost due to the super window when receiving.
  • Embodiments of the present application can ensure that the data unit of the receiving window does not exhibit packet loss behavior of the data unit due to exceeding the receiving window.
  • the embodiments of the present application will be described in detail below with reference to specific examples. It should be noted that this is only to help those skilled in the art to better understand the embodiments of the present application, and not to limit the scope of the embodiments of the present application.
  • the application scenario of the present application may be data processing performed between the terminal device and the host base station after the entire control plane between the terminal device and the host base station is established in the 5G system or in the future communication system.
  • FIG. 6 is a schematic flowchart of a communication method 500 according to an embodiment of the present application.
  • the communication method 500 can be applied to the scenario of uplink transmission in the scenario shown in FIG. 2, and can also be applied to other communication scenarios. The embodiment is not limited herein.
  • the communication method 500 includes:
  • the first device sends a first data unit group, where the first data unit group is in a first sequence range.
  • the first device may be a terminal device, and the second device may be a host base station.
  • the first sequence range is a range of data units that the terminal device can transmit.
  • the first device receives first information by using at least one relay node, where the first information is used to indicate that the second device has received and/or received the data unit in the first data unit group.
  • the terminal device receives the first information through the at least one relay node, the first information being used to indicate the data unit in the first group of data units that the host base station has received and/or not received.
  • the first device determines a second sequence range according to the first information. For example, the terminal device determines the second sequence range based on the first information.
  • the first device may send the data unit in the first sequence range, and the first device according to the data unit in the first data unit group that has been received and/or not received by the second device
  • the first information determines the second sequence range, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, improving the accuracy of data transmission and the efficiency of data transmission.
  • the first device determines the second sequence range according to the first information, including:
  • the first sequence range is extended by N sequences to obtain the second sequence range, where , N is a positive integer.
  • the first sequence range may be a transmission window of the terminal device, and the first sequence range is a data unit with sequence numbers 1 to 10.
  • the first data unit group may be the data unit No. 1 to No. 10, and when the first information includes the information that the second device successfully receives the data unit No. 1 and the data unit No. 2, the first sequence range is extended by two sequence determinations.
  • the second sequence ranges from 3 to 13.
  • the first sequence range is extended by one sequence to determine that the second sequence range is from 2 to 11. If the first information includes the host station successfully receiving the 2nd data packet and the 3rd data packet, the first sequence range is not extended. It should be understood that when the first information includes that the host base station successfully receives the information that the consecutive N data units are successfully received from the first data unit, that is, the reception of the consecutive N data units from the data unit No. 1 is successfully received. In the case of information, the first sequence range is extended by N sequences to determine the second sequence.
  • the first sequence range may be a transmission window of the terminal device, and the transmission window may be less than or equal to half of the SN space.
  • the first sequence range is the sequence number range of the data unit that can be transmitted by the terminal device, and the sequence number range sent by the terminal device should be within the first sequence range.
  • the sequence number sent by the terminal device should be within the second sequence range.
  • the first message received by the first device is a message sent by the second device, and the first device receives the first message of the second device that is forwarded by the at least one relay node.
  • the terminal device receives the first message sent by the host base station by forwarding by the at least one relay node, where the first message includes the first data unit group used to indicate that the host base station has received and/or received The first information of the data unit.
  • the first data unit group includes a data unit a, a data unit b, a data unit c, a data unit d, and a data unit e.
  • the sequence numbers of the five data units may be data units 1 to 5, and the terminal device passes at least A relay node sends the first data unit group to the host base station, the host base station receives the data unit No. 1 to No. 3, and does not receive the data unit No. 4 and No. 5, and the host base station sends the first information, in the first information.
  • the host base station receives the data units No. 1 to No. 3, and does not receive the information of the data units No. 4 and No. 5.
  • the host base station sends the first message to the at least one relay node, and the at least one relay node forwards the first message. Forwarding the first message to the terminal device, where the first message includes the first information.
  • At least one relay node forwards only the first message sent by the host base station, and finally sends the message to the terminal device, and the relay node does not process the first message.
  • the first relay node receives the first information sent by the previous hop relay node or the second device of the first relay node, where the first information is used to indicate the a data unit in the first set of data units that has been received and/or not received by the second device, the first set of data units being within the first sequence of ranges;
  • the first relay node forwards the first information.
  • the first message may be a status report of the PDCP entity sent by the host base station, or the first message may be a status report of the RLC entity sent by the host base station.
  • the first message may be a message that the host base station periodically sends to the terminal device.
  • the first message may be a message sent by the host base station to the terminal device when the terminal device sends a query request to the host base station, for example, when the host base station is configured to receive the first data unit group.
  • the terminal device receives a second message obtained by the at least one relay node according to the first message sent by the host base station, where the second message includes, to indicate that the host base station has received And/or first information of the data unit in the first set of data units not received.
  • the second message is determined by the at least one relay node according to the number mapping relationship between the first message and the transmit and receive data units maintained by the at least one relay node.
  • the terminal device communicates with the donor base station via the relay node 1, the relay node 2, ie, the terminal device-relay node 1 - the relay node 2 - the donor base station.
  • the terminal device sends five data units a, b, c, d, and e to the host base station, and the RLC entity of the terminal device adds a packet header to the five data units, and the packet header contains numbers: a-1, b-2, c- 3. d-4, e-5, the terminal device first transmits 5 data units to the relay node 1, and the relay node 1 maintains a number mapping relationship between the transmitting and receiving data units.
  • the mapping relationship maintained at the relay node 1 is 1-6, 2-7, 3-8, 4-9, 5-10, that is, at the relay node 1, a, b, c, d, e
  • the headers 1, 2, 3, 4, 5 of the five data units are removed, and then new headers a-6, b-7, c-8, d-9, e-10 are added to the data unit.
  • the relay node 1 then transmits five data units to the relay node 2, and the relay node 2 also maintains a number mapping relationship between the transmitting and receiving data units.
  • the mapping relationship maintained at the relay node 2 is 6-11, 7-12, 8-13, 9-14, 10-15, ie, a, b, c, d, e at the relay node 2.
  • the five data units are removed at the headers 6, 7, 8, 9, 10 added at the relay node 1, and then the new headers a-11, b-12, c-13, d-14 are added to the data unit. E-15.
  • the relay node 2 transmits the 5 data units to the host base station.
  • the data unit of the packet header of the data unit is successfully received at the host base station is 11, 12, 13, the data unit of the data unit whose header is not successfully received is 14, 15
  • the PDCP layer of the host base station can identify that the data unit of the packet header 11, 12, 13 is the data unit a, the data unit b, and the data unit c.
  • the host base station sends the first message, that is, the host base station receives the data unit a,
  • the data unit b, the data unit c does not receive the data unit with the packet headers 14, 15, that is, the host base station sends the first message to the relay node 2, and the data base unit successfully receives the data unit with the packet headers 11, 12, 13 and does not receive.
  • the relay node 2 transmits the processed first message to the relay node according to the number mapping relationship 6-11, 7-12, 8-13, 9-14, 10-15 of the transmitted and received data units, that is, to the relay node
  • the relay node 1 transmits the data unit successfully receiving the packet headers 6, 7, and 8 by the host base station, and does not receive the data unit with the packet headers of 9, 10, and the relay node 1 maps the number according to the number of the transmitted and received data units.
  • -6, 2-7, 3-8, 4-9, 5-10 send the second message obtained by processing the first message to the terminal, that is, the host base station successfully transmits the packet header to 1, 2, 3
  • the data unit does not receive the data unit with the packet headers 4 and 5.
  • the terminal device After receiving the second message, the terminal device can know that the host base station has successfully received the data unit a, the data unit b, and the data unit c, and has not successfully received the data units d and e.
  • the second message may be a status report of the RLC entity.
  • the first relay node receives the first information sent by the second device, where the first information is used to indicate that the second device has received and/or received the first information.
  • a data unit in a data unit group the first data unit group being within a first sequence range;
  • the first relay node sends the second information, where the second information is determined according to the number mapping relationship between the sending and receiving data units maintained by the first relay node and the first information, the second The information is used to indicate a data unit in the first set of data units that the second device has received and/or received.
  • the number mapping relationship maintained by the relay node 1 and the relay node 2 may be the number of the RLC entity of the data unit it receives and the RLC entity of the data unit sent by the relay node to the next hop relay node.
  • the mapping relationship of the number that is, the mapping relationship between the number of the data unit received by the relay node and the number of the transmitted data unit.
  • the description of the foregoing embodiment is that in the scenario of uplink transmission, the first device may be a terminal device, and the second device may be a host base station.
  • the first device In the scenario of the downlink transmission, the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • FIG. 7 is a schematic flowchart of a communication method 600 according to an embodiment of the present application.
  • the communication method 600 can be applied to the scenario of uplink transmission or downlink transmission in the scenario shown in FIG. 2, and can also be applied to other communication scenarios. This application does not limit this. Taking the above line transmission as an example, the communication method 600 includes:
  • the first relay node receives the first data unit group sent by the first device.
  • the first relay node receives the first data unit group sent by the terminal device.
  • the first relay node adds a number to the data unit in the first data unit group.
  • the first relay node adds a number to the data unit in the first data unit group, including:
  • the first relay node adds a number to the data units in the first data unit group in the order of reception.
  • the method before the first relay node adds a number to the data unit in the first data unit group, the method further includes:
  • the first relay node sorts data units in the first data unit group.
  • the first relay node can add a number to the data unit, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the data transmission. Accuracy and efficiency of data transfer.
  • the first relay node is a relay node that directly communicates with the first device.
  • the first relay node is a relay node that can directly communicate with the terminal device.
  • the first relay node may have a function of sorting functions and numbers; or, the first relay node may have a numbering function; or the first relay node has a sorting function. This application does not limit this.
  • FIG. 8 is a schematic flowchart of a communication method 400 according to an embodiment of the present application.
  • the communication method 400 can be applied to the scenario of uplink transmission or downlink transmission in the scenario shown in FIG. 2, and can also be applied to other communication scenarios. This application does not limit this. Taking the following line transmission as an example, the communication method 400 includes:
  • the first relay node receives the numbered data unit sent by the at least one relay node or the second device.
  • the first relay node sorts the data units according to the number.
  • the base station communicates with the terminal device through the third relay node, the second relay node, and the first relay node, where the third relay node directly communicates with the base station, and the third Receiving, by the node, the first data unit group sent by the base station, and adding the first data unit group according to the receiving sequence; the third relay node sends the numbered first data unit group to the second relay node, when the first After receiving the first data unit group with the number, the second relay node may sort the first data unit group for the first data unit group; or the second relay node may not sort the first data unit group, and directly have The numbered first data unit group is sent to the first relay node; the first relay node receives the numbered data unit and sorts the data units by number.
  • the first relay node sends, to the first device, the first data unit group in the numbered order, where the first data unit group is the sorted data unit.
  • the first relay node can add a number to the data unit, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the data transmission. Accuracy and efficiency of data transfer.
  • the base station communicates with the terminal device by using the third relay node, the second relay node, and the first relay node, and the first relay node, and the first relay node receives the numbered by the second relay node.
  • the first relay node sorts the data units according to the number, and sends the first data unit group to the terminal device in numerical order, the first data unit group being the sorted data unit.
  • FIG. 9 is a schematic diagram of a method of data processing according to an embodiment of the present application.
  • the first device communicates with the second device through the at least one relay node.
  • the first device may communicate with the second device through the first relay node, the second relay node, and the third relay node.
  • the first relay node is a relay node that is connected to the first device.
  • the first relay node has a function of numbering and sorting.
  • the terminal device sends the data unit whose serial number is No. 1 to No. 5 to the first relay node, and the sequence order of the data unit received by the first relay node is the data unit No. 2, the data unit No. 1, and the data unit No. 3 , data unit No. 4, data unit No. 5.
  • the first relay node may number the received data units, and the first relay node may be numbered according to the sequence of the received data units. For example, the first relay node numbers the data unit with the sequence number 2 as 1. , the data unit number of sequence 1 is 2, the data unit number of sequence 3 is 3, the data unit number of sequence 4 is 4, and the data unit number of sequence 5 is 5,
  • a relay node can hang the number of the data unit on the header of the data unit.
  • the serial number of the data unit is a number that the PDCP layer can recognize, and the relay node does not have the PDCP layer and thus cannot be identified.
  • the first relay node numbers the data unit 12345 in the order of receiving, and the number added by the first relay node is a number that the relay node can recognize.
  • the first relay node sends the numbered data unit to the second relay node
  • the second relay node may not sort according to the number added by the data unit, and the second relay node will data unit.
  • Sending to the third relay node the third relay node sends the data unit to the second device, and the second device sorts according to the newly added number, and then hands over to the PDCP layer of the second device, thereby ensuring the first
  • the data unit received by the PDCP layer of the second device does not exceed the receiving window, and the PDCP layer of the second device performs sorting according to the number of the PDCP layer to avoid packet loss caused by the second device exceeding the receiving window of the data unit.
  • the adaptation layer of the first relay node may have the function of sorting and numbering; or the adaptation layer of the first relay node may have a sorting function; or the adaptation layer of the first relay node Can have a numbered function. This application does not limit this.
  • the adaptation layer of the second relay node may have a sorting function; or the RLC entity of the second relay node has a sorting function. This application does not limit this.
  • the adaptation layer may be located above the RLC entity; or, the adaptation layer may be located above the MAC entity.
  • FIG. 10 is a schematic diagram of a method of data processing according to another embodiment of the present application.
  • the first device communicates with the second device through at least one relay node.
  • the first device may communicate with the second device through the first relay node, the second relay node, and the third relay node.
  • the first relay node is a relay node that is connected to the first device.
  • the first relay node has a numbered function.
  • the first relay node sends the numbered data unit to the second relay node
  • the second relay node may sort the data units by number
  • the second relay node may send the numbered data unit to the third a relay node
  • the third relay node may sort the data units according to the number
  • the third relay node sends the sorted data unit to the second device, thereby ensuring that the data unit received by the second device does not exceed the receiving window In order to avoid packet loss caused by the second device exceeding the receiving window of the data unit.
  • the second relay node receives a data unit sent by the relay node connected to the second relay node, the data unit has a number; the second relay node pairs the The data units with numbers are sorted.
  • FIG. 11 is a schematic diagram of a processing method in accordance with another embodiment of the present application.
  • the first device is a terminal device, and in an uplink transmission scenario, as shown in the figure, the RLC layer of the relay node has a sorting function.
  • FIG. 11 is a schematic diagram of a method of data processing according to another embodiment of the present application.
  • the first device may be a terminal device, and the second device may be a base station.
  • the RLC layer of the relay node has a sorting function, the first relay node transmits the numbered data unit to the second relay node; and the second relay node according to the number of the data unit Sorting is performed, and the sorted data unit is sent to the third relay node; the third relay node sorts the data units according to the number of the data unit, and sends the sorted data unit to the base station.
  • the sequence number of the data unit is a number that the PDCP layer can recognize, and the relay node does not have the PDCP layer and thus cannot identify the PDCP layer number.
  • the RLC receiving entity of the first relay node sorts the received data units according to the number of the RLC layer, and numbers them in the RLC layer according to the receiving order, and sends them to the second relay node, and the RLC receiving entity of the third relay node.
  • the received data units are sorted according to the number of the RLC layer, and are numbered in the RLC layer according to the receiving sequence, and sent to the second device.
  • the RLC layer of the second device is sorted according to the RLC layer number and then delivered to the PDCP layer.
  • the first device is a terminal device, and in a downlink transmission scenario, as shown in the figure, the RLC layer of the relay node has a sorting function.
  • FIG. 12 is a schematic diagram of a method of data processing according to another embodiment of the present application.
  • the first device may be a terminal device, and the second device may be a base station.
  • the RLC layer of the relay node has a sorting function
  • the third relay node receives the data unit transmitted by the base station, and numbers and sorts the data units; the third relay node points to The second relay node sends the sorted numbered data unit; the second relay node sorts according to the number of the data unit, and sends the sorted data unit to the first relay node; the first relay node according to the data unit
  • the numbering sorts the data units and sends the sorted data units to the terminal device.
  • the sequence number of the data unit is a number that the PDCP layer can recognize, and the relay node does not have the PDCP layer and thus cannot identify the PDCP layer number.
  • the RLC receiving entity of the third relay node sorts the received data units according to the number of the RLC layer, and sends the data unit to the second relay node after the RLC layer number according to the receiving sequence, and the RLC receiving entity of the first relay node
  • the received data units are sorted according to the number of the RLC layer, and are numbered in the RLC layer according to the receiving sequence, and sent to the first device.
  • the RLC layer of the first device is sorted according to the RLC layer number or submitted to the PDCP layer according to the receiving order.
  • the second relay node can sort the numbered data units, thereby avoiding the packet loss problem caused by the data unit exceeding the receiving window of the receiving end, and improving the accuracy and data of the data transmission. The efficiency of the transmission.
  • FIG. 13 is a schematic flowchart of a communication method 700 according to an embodiment of the present application.
  • the communication method 700 can be applied to the scenario of uplink transmission in the scenario shown in FIG. 2, and can also be applied to other communication scenarios. This is not limited.
  • the communication method 700 includes:
  • the first device receives a third message, where the third message includes hop count information that the first device communicates with the second device.
  • the terminal device receives the third message, and the third message includes hop count information. If the terminal device communicates with the host base station through a relay node, the hop count information is two hops; if the terminal device and the donor base station communicate through two relay nodes, the hop count information is three hops.
  • the third message may be a broadcast message; or the third message may be a message sent by dedicated signaling.
  • the third message may be that the host base station forwards the message sent to the terminal device by using the relay node; or the third message may be a message that the relay node sends to the terminal device.
  • the first device determines, according to the third message, a first sequence range, where the first sequence range is used to indicate a sequence number range allocated by the first device, or is used to indicate a maximum number of data units that are allowed to be sent.
  • the terminal device determines the first sequence range according to the hop count information included in the third message, where the first sequence range may be a sending window of the terminal device, and the terminal device may send the data unit included in the first sequence range.
  • the first sequence range is less than or equal to the assigned sequence number, and the assigned sequence number is the sequence number space/hop count/2.
  • the serial number space (SN space) is the total number of serial numbers. If the serial number is 12 bits, the serial number space is 2 12 .
  • FIG. 15 is a schematic diagram of a method of data processing according to an embodiment of the present application.
  • two hops are taken as an example for illustration.
  • the host base station sends a third message to the terminal device, where the third message may be a broadcast message or a dedicated message, and notify the terminal device of the hop count of the host base station.
  • the terminal device controls the number of allocated SNs not to exceed the sequence number space (SN space) / hop count (X)/2 according to the hop count X to the base station. It is also necessary to control the number of data units that are simultaneously transmitted on the air interface for the data unit of the bearer at each hop not exceeding SN space/X/2.
  • the number of SNs allocated for control does not exceed the sequence number space (SN space)/2 hops (X) /2.
  • the first device in the scenario of uplink transmission, the first device may be a terminal device, and the second device may be a host base station.
  • the first device In the scenario of the downlink transmission, the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • FIG. 14 is a schematic flowchart of a communication method 800 according to an embodiment of the present application.
  • the communication method 800 can be applied to the scenario of uplink transmission in the scenario shown in FIG. 2, and can also be applied to other communication scenarios. This is not limited.
  • the communication method 800 includes:
  • the first relay node determines first hop information, where the first relay node is a relay node that directly communicates with the first device.
  • the first device may be a terminal device
  • the second device may be a base station.
  • the terminal device receives the third message, and the third message includes hop count information. If the terminal device communicates with the host base station through a relay node, the hop count information is two hops; if the terminal device and the donor base station communicate through two relay nodes, the hop count information is three hops.
  • the hop count information is one hop; if the terminal device and the donor base station communicate through two relay nodes, the hop count information is two hops. .
  • the first relay node determines the first hop count information, including:
  • the first relay node adds one hop information broadcast by the previous hop relay node of the first relay node to obtain the number of the at least one relay node.
  • the first relay node is connected to the second relay node, and the first relay node receives the hop count information broadcast by the second relay node as the second relay node is two hops, and the first relay node is in the second
  • the hop count information broadcast by the relay node is incremented by one, that is, the first relay node is three hops.
  • the third message may be a broadcast message; or the third message may be a message sent by dedicated signaling.
  • the third message may be that the host base station forwards the message sent to the terminal device by using the relay node; or the third message may be a message that the relay node sends to the terminal device.
  • the first relay node sends a third message to the first device, where the third message includes the first hop count information, where the first hop count information is the at least one relay node The number or the number of the at least one relay node is increased by one.
  • the first relay node determines the first hop count information, including:
  • the first relay node adds one second hop information broadcasted by the previous hop relay node of the first relay node to obtain the first hop count information.
  • the terminal device determines the first sequence range according to the first hop information included in the third message, where the first sequence range may be a sending window of the terminal device, and the terminal device may send the data unit included in the first sequence range.
  • the first sequence range is less than or equal to the assigned sequence number, and the assigned sequence number is the sequence number space/hop count/2.
  • the serial number space (SN space) is the total number of serial numbers. For example, if the serial number is 12 bits, the serial number space is 2 12 .
  • FIG. 15 is a schematic diagram of a method of data processing according to an embodiment of the present application.
  • two hops are taken as an example for illustration.
  • the relay sends a third message to the terminal device, and the third message may be a broadcast message or a dedicated message, and notify the terminal device of the hop count to the host base station.
  • the terminal device controls the number of allocated SNs not to exceed SN space/X/2 according to the hop count X to the base station. It is also necessary to control the number of data units that are simultaneously transmitted on the air interface for the data unit of the bearer at each hop not exceeding SN space/X/2.
  • the first device may be a terminal device, and the second device may be a host base station.
  • the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • FIG. 16 is a schematic flowchart of a method 900 for data processing according to an embodiment of the present application.
  • the communication method 900 can be applied to a scenario of downlink transmission in the scenario shown in FIG. 2, and can also be applied to other communication scenarios. This application does not limit this.
  • the communication method 900 includes:
  • the first device receives, by the at least one relay node, a first data unit that is sent by the second device, where the first data unit carries a count value.
  • the first device communicates with the second device by using at least one relay node, where the at least one relay node does not have a packet data convergence protocol PDCP entity.
  • the terminal device receives the first data unit sent by the host base station, and the first data unit carries the count value.
  • Each data unit shown in FIG. 3 has a COUNT value, and the air interface of the transmitting end (sending device) is according to the data unit. COUNT values are sent in ascending order.
  • the first device may be a terminal device, and the data unit sent in the air interface carries the COUNT value, and the sending end (for example, the host base station) still has a sending window, that is, the sending COUNT is in a certain range.
  • the first data unit is within the first sequence. That is, the first data unit is within the transmission window of the transmitting end.
  • the first sequence range is used to indicate a range of count values that the second device allows to be allocated, or a count that is allowed to be allocated when the second device sends the first data unit. Range of values. That is, the second device needs to resend the first data unit transmitted within the range allowed by the window. The first data unit transmitted by the second device needs to be within the range allowed by the transmission window when transmitting.
  • the first sequence ranges from half of the serial number space or less than half of the serial number space. That is, the transmission window existing at the transmitting end allows the maximum number of data units to be transmitted to be half of the serial number space, and the host base station can transmit data units within the first sequence range.
  • the first device processes the first data unit according to the count value carried by the first data unit.
  • the terminal device processes the first data unit according to the COUNT value of the first data unit.
  • the first data unit is stored if the count value of the first data unit is greater than a next count value of the count value of the last data unit that has been submitted.
  • the COUNT value of the last data unit that has been submitted has a value of 10
  • the next COUNT value of the count value of the last data unit that has been submitted is 11
  • the COUNT value of the first data unit is 12, it is stored in the terminal device. The first data unit.
  • the terminal device when the COUNT value of the first data unit is greater than the next count value of the count value of the last data unit that has been submitted, the terminal device has not stored the first data unit, and the terminal device first stores the first data unit. Store and deliver to the upper layers of the PDCP entity in order.
  • the first data unit is submitted to the upper layer of the packet data convergence protocol PDCP entity.
  • the terminal device submits The first data unit is to an upper layer of the PDCP entity.
  • the first data unit is discarded.
  • the COUNT value of the last data unit that has been submitted has a value of 10
  • the next COUNT value of the count value of the last data unit that has been submitted is 11
  • the COUNT value of the first data unit is 9, the number is discarded.
  • the second device sends the first data unit to the first device by using the at least one relay node, where the first data unit carries a count value, where the first device passes At least one relay node is in communication with the second device, and the at least one relay node does not have a packet data convergence protocol PDCP entity.
  • the first data unit belongs to a first sequence range, where the first sequence range is used to indicate a range of count values that the second device allows to be allocated, or a count value that is allowed to be allocated when the second device sends the first data unit range.
  • the size of the first sequence range is half of a sequence number space or less than half of a sequence number space.
  • the first device may be a terminal device, and the second device may be a host base station.
  • the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • the transmitting end has a maximum edge of the sending window, and the receiving end does not have a maximum edge of the receiving window, and the data unit is processed by transmitting the data unit carrying the count value, thereby avoiding the data unit exceeding
  • the packet loss problem caused by the receiving window of the receiving end improves the accuracy of data transmission and the efficiency of data transmission.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application.
  • the implementation process constitutes any limitation.
  • the first device determines the second sequence range according to the first information. Specifically, the first device receives the first information by using at least one relay node. The first information is used to indicate that the second device has received and/or received the data unit in the first data unit group, thereby improving the accuracy of data transmission and the efficiency of data transmission.
  • the data processing device in the embodiment of the present application may perform the foregoing various methods in the embodiments of the present application, that is, the specific working processes of the following various products, and may refer to the corresponding processes in the foregoing method embodiments.
  • Embodiments of the communication device of the present application will be described in detail below with reference to FIGS. 17 through 20. It should be understood that the description of the method embodiments corresponds to the description of the communication device embodiments, and therefore, portions that are not described in detail may be referred to the foregoing method embodiments.
  • FIG. 17 is a schematic block diagram of a communication device 1200 for data processing according to an embodiment of the present application.
  • the communication device 1200 may correspond to the first device in each method embodiment, and may have any function of the first device in the method.
  • the communication device 1200 can include a transceiver module 1210 and a processing module 1220.
  • the transceiver module 1210 and the processing module 1220 communicate with each other through an internal connection path to transfer control and/or data signals.
  • the transceiver module 1210 and the processing module 1220 can be implemented by a chip to implement the corresponding functions of the terminal device in the embodiment of the present application.
  • the communication device 1200 communicates with the second device through at least one relay node, wherein the at least one relay node does not have a Packet Data Convergence Protocol (PDCP) entity.
  • PDCP Packet Data Convergence Protocol
  • the communication device 1200 can be a terminal device, and the second device can be a host base station.
  • the communication device 1200 includes a transceiver module 1210 and a processing module 1220.
  • the transceiver module 1210 is configured to send a first data unit group, where the first data unit group is in a first sequence range.
  • the transceiver module 1210 is further configured to receive, by the at least one relay node, first information, where the first information is used to indicate that the first data that the second device has received and/or received The unit of data in the unit group.
  • the processing module 1220 is configured to determine a second sequence range according to the first information.
  • the first sequence range may be a transmission window of the transmitting end, and the terminal device may transmit the data unit within the first sequence range.
  • processing module 1220 is further configured to:
  • the first sequence range is extended by N sequences to obtain the second Sequence range, where N is a positive integer.
  • the transceiver module 1210 is further configured to:
  • the first message is a status report of a PDCP entity; or the first message is a status report of a Radio Route Control Protocol (RLC) entity.
  • RLC Radio Route Control Protocol
  • the first message is a periodically sent message.
  • the transceiver module 1210 is further configured to:
  • the transceiver module 1210 is further configured to:
  • the second message is determined by the at least one relay node according to the number mapping relationship between the first message and the sending and receiving data units maintained by the at least one relay node.
  • the second message is a status report of the RLC entity.
  • the description of the foregoing embodiment is that in the scenario of uplink transmission, the first device may be a terminal device, and the second device may be a host base station.
  • the first device In the scenario of the downlink transmission, the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • the communication device 1200 communicates with the second device through at least one relay node, wherein the at least one relay node does not have a Packet Data Convergence Protocol (PDCP) entity.
  • PDCP Packet Data Convergence Protocol
  • the communication device 1200 can be a terminal device, and the second device can be a host base station.
  • the communication device 1200 includes a transceiver module 1210 and a processing module 1220.
  • the transceiver module 1210 is configured to receive a third message, where the third message includes hop count information that the first device communicates with the second device.
  • the processing module 1220 is configured to determine, according to the hop count information, a first sequence range, where the first sequence range is used to indicate a sequence number range allocated by the first device, or is used to indicate a data unit that is allowed to be sent. greatest amount. .
  • the terminal device receives the third message, and the third message includes hop count information. If the terminal device communicates with the host base station through a relay node, the hop count information is two hops; if the terminal device and the donor base station communicate through two relay nodes, the hop count information is three hops.
  • the first sequence range is less than or equal to the number of allocated sequence numbers, and the number of the allocated sequence numbers is a sequence number space/hop count/2.
  • the third message is a broadcast message.
  • the third message is a message sent by dedicated signaling.
  • the third message is sent by the second device.
  • the third message is a message sent by the host base station.
  • the third message is sent by the at least one relay node.
  • the first device may be a terminal device, and the second device may be a host base station.
  • the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • the communication device 1200 communicates with the second device through at least one relay node, wherein the at least one relay node does not have a Packet Data Convergence Protocol (PDCP) entity.
  • PDCP Packet Data Convergence Protocol
  • the communication device 1200 can be a terminal device, and the second device can be a host base station.
  • the communication device 1200 includes a transceiver module 1210 and a processing module 1220.
  • the transceiver module 1210 is configured to receive, by the at least one relay node, the second transmitted first data unit, where the first data unit carries a count value.
  • the processing module 1220 is configured to process the first data unit according to the count value carried by the first data unit.
  • the terminal device receives, by the at least one relay node, the first data unit sent by the host base station, where the first data unit carries a count value;
  • the terminal device processes the first data unit according to a count value carried by the first data unit.
  • processing unit 1220 is further configured to:
  • the first data unit is discarded.
  • processing unit 1220 is further configured to:
  • the COUNT value of the last data unit that has been submitted has a value of 10
  • the next COUNT value of the count value of the last data unit that has been submitted is 11
  • the COUNT value of the first data unit is 12, it is stored in the terminal device. The first data unit.
  • the terminal device when the COUNT value of the first data unit is greater than the next count value of the count value of the last data unit that has been submitted, the terminal device has not stored the first data unit, and the terminal device first stores the first data unit. Store and deliver to the upper layers of the PDCP entity in order.
  • the first data unit is submitted to the upper layer of the packet data convergence protocol PDCP entity.
  • the terminal device submits The first data unit is to an upper layer of the PDCP entity.
  • the first data unit is discarded.
  • the COUNT value of the last data unit that has been submitted has a value of 10
  • the next COUNT value of the count value of the last data unit that has been submitted is 11
  • the COUNT value of the first data unit is 9, the number is discarded.
  • the first data unit is within the first sequence range.
  • the first sequence range indicates a range of count values that the second device allows to be allocated.
  • the first sequence range indicates a range of count values allowed by the second device when the first data unit is sent.
  • the size of the first sequence range is half of a sequence number space or less than half of a sequence number space.
  • the first device may be a terminal device, and the second device may be a host base station.
  • the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • FIG. 18 is a schematic block diagram of a communication device 1300 for data processing according to an embodiment of the present application.
  • the communication device 1300 may correspond to a relay node in each method embodiment, and may have any function of a relay node in the method.
  • the first device communicates with the second device via at least one communication device 1300, wherein the at least one communication device 1300 does not have a Packet Data Convergence Protocol PDCP entity.
  • the communication device 1300 can include a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 and the processing module 13220 communicate with each other through an internal connection path to transfer control and/or data signals.
  • the transceiver module 13210 and the processing module 1320 can be implemented by a chip to implement the corresponding functions of the terminal device in the embodiment of the present application.
  • the communication device 1300 can include a transceiver module 1310 and a processing module 1320.
  • the communication device 1300 may be a first relay node directly connected to the first device, that is, an end relay node, or may be a second relay node connected to the first relay node, that is, in the middle. Following the node.
  • the communication device 1300 when the communication device 1300 is the first relay node; that is, the communication device 1300 is the first relay node directly connected to the first device.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 is configured to receive first information sent by a previous hop relay node or a second device of the first relay node, where the first information is used to indicate that the second device has received / or a data unit in the first data unit group that is not received, the first data unit group being within the first sequence of ranges.
  • the processing module 1320 is configured to forward, by the first relay node, the first information.
  • the communication device 1300 when the communication device 1300 is the first relay node; that is, the communication device 1300 is the first relay node directly connected to the first device.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 is configured to receive first information sent by the second device, where the first information is used to indicate that the second device has received and/or received a data unit in the first data unit group.
  • the first set of data units is within a first sequence range.
  • the processing module 1320 is configured to generate second information, where the second information is determined according to a number mapping relationship between the sending and receiving data units maintained by the first relay node and the first information.
  • the transceiver module 1310 is further configured to send the second information.
  • the communication device 1300 when the communication device 1300 is the first relay node; that is, the communication device 1300 is the first relay node directly connected to the first device.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 is configured to receive a first data unit group sent by the first device.
  • the processing module 1320 is configured to add a number to the data units in the first data unit group according to the receiving order.
  • the number is added by the communication device 1300.
  • the communication device 1300 is a first relay node
  • the first relay node is a relay node that directly communicates with the terminal device.
  • the adaptation layer of the communication device 1300 has a sorting function
  • the adaptation layer of the communication device 1300 has the function of the numbering.
  • the adaptation layer of the first relay node has a sorting function
  • the adaptation layer of the first relay node has the function of the number.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • the communication device 1300 when the communication device 1300 is the first relay node; that is, the communication device 1300 is the first relay node directly connected to the first device.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 is configured to receive a numbered data unit sent by at least one relay node.
  • the processing module 1320 is configured to sort the data units according to the number
  • the transceiver module 1310 is further configured to send the first data unit group to the first device in the numbered order, where the first data unit group is the sorted data unit.
  • the adaptation layer has a sorting function
  • the Radio Path Control Protocol RLC entity has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • the communication device 1300 when the communication device 1300 is the first relay node; that is, the communication device 1300 is the first relay node directly connected to the first device.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the processing module 1320 is configured to determine first hop count information, where the first relay node is a relay node that directly communicates with the first device.
  • the transceiver module 1310 is configured to send a third message to the first device, where the third message includes the first hop count information, where the first hop count information is the at least one relay node The number or the number of the at least one relay node is increased by one.
  • the transceiver module 1310 is configured to send the third message to the first device by using a broadcast.
  • the transceiver module 1310 is configured to send the third message to the first device by using dedicated signaling.
  • the transceiver module 1310 is configured to add one second hop information broadcasted by the previous hop relay node of the first relay node to obtain the first hop count information.
  • the communication device 1300 when the communication device 1300 is a second relay node; that is, the communication device 1300 is a second relay node connected to the relay node.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 is configured to receive a data unit sent by a relay node connected to the second relay node, where the data unit has a number.
  • the processing module 1320 is configured to sort the numbered data units.
  • the number is added by the first relay node, and the first relay node is a relay node that directly communicates with the terminal device.
  • the adaptation layer of the first relay node has the ordering; and/or
  • the adaptation layer of the first relay node has the function of the number.
  • the adaptation layer of the communication device 1300 has a sorting function
  • the communication device 1300 Radio Path Control Protocol RLC entity has the sorting function.
  • the adaptation layer of the second relay node has a sorting function
  • the radio path control protocol RLC entity of the second relay node has the sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • the communication device 1300 when the communication device 1300 is a second relay node; that is, the communication device 1300 is a second relay node connected to the relay node.
  • the communication device 1300 includes a transceiver module 1310 and a processing module 1320.
  • the transceiver module 1310 is configured to receive a data unit sent by a relay node connected to the communication device 1300, where the data unit has a number.
  • the processing module 1320 is configured to sort the numbered data units.
  • the number is added by an adaptation layer of the second device.
  • the number is added by a relay node that is in direct communication with the communication device 1300.
  • the adaptation layer of the communication device 1300 has a sorting function
  • the Radio Path Control Protocol RLC entity has a sorting function.
  • the adaptation layer is located above the radio link control RLC entity.
  • the adaptation layer is located above the medium access control MAC entity.
  • the description of the foregoing embodiment is that in the scenario of uplink transmission, the first device may be a terminal device, and the second device may be a host base station.
  • the first device In the scenario of the downlink transmission, the first device may be the host base station, and the second device may be the terminal device, which is not limited in this application.
  • FIG. 19 is a schematic structural diagram of a communication device 1400 according to an embodiment of the present application.
  • the communication device 1400 includes one or more processors 1401, one or more memories 1402, and one or more transceivers 1403.
  • the processor 1401 is configured to control the transceiver 1403 to transmit and receive signals
  • the memory 1402 is configured to store a computer program
  • the processor 1401 is configured to call and run the computer program from the memory 1402, such that the communication device performs the transmission method implementation of the present application.
  • the processor 1401 can be used to perform corresponding operations and/or functions of the processing module 1220 in the communication device 1200.
  • the transceiver 1403 can be used to perform corresponding operations and/or functions of the transceiver module 1210 in the communication device 1200. , will not repeat them here.
  • FIG. 20 is a schematic structural diagram of a communication device 1500 according to an embodiment of the present application.
  • the communication device 1500 includes one or more processors 1501, one or more memories 1502, and one or more transceivers 1503.
  • the processor 1501 is configured to control the transceiver 1503 to transmit and receive signals
  • the memory 1502 is configured to store a computer program
  • the processor 1501 is configured to call and run the computer program from the memory 1502, so that the communication device performs the transmission method implementation of the present application.
  • the processor 1501 can be used to perform corresponding operations and/or functions of the processing module 1320 in the communication device 1300.
  • the transceiver 1503 can be used to perform corresponding operations and/or functions of the transceiver module 1310 in the communication device 1300. , will not repeat them here.
  • the embodiment of the present application further provides a chip system, which is applied to a communication device, where the chip system includes: at least one processor, at least one memory, and an interface circuit, where the interface circuit is responsible for information interaction between the chip system and the outside world.
  • the at least one memory, the interface circuit, and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform the various aspects described above The operation of the communication device in the method described.
  • the embodiment of the present application further provides a communication system, including: a communication device, and/or a network device; wherein the communication device is the communication device described in the foregoing aspects.
  • the embodiment of the present application further provides a computer program product, which is applied to a communication device, the computer program product comprising a series of instructions, when the instruction is executed, to perform the method described in the above aspects.
  • the operation of the communication device is not limited to a communication device.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may pass according to a signal having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Local and / or remote processes to communicate.
  • data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and / or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B from A does not mean that B is only determined based on A, and that B can also be determined based on A and/or other information.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)).
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium such as a digital video disc (DVD)
  • a semiconductor medium such as a solid state disk (SSD)
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

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Abstract

本申请提供了一种数据处理的方法及设备,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:第一设备发送第一数据单元组,该第一数据单元组在第一序列范围内;该第一设备通过该至少一个中继节点接收第一信息,该第一信息用于指示该第二设备已收到和/或未收到的该第一数据单元组中的数据单元;该第一设备根据所述第一信息确定第二序列范围。本申请实施例的技术方案能够提高了数据传输的准确性和数据传输的效率,提高用户体验。

Description

一种数据处理的方法及设备
本申请要求于2018年5月10日提交中国专利局、申请号为201810444917.9、申请名称为“数据处理的方法及设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域,并且更具体地,涉及一种数据处理的方法及设备。
背景技术
为了保证未来蜂窝网络的部署和应用,在第五代(5Generation,5G)新空口(New Radio,NR)技术中提供了一种支持无线回程和中继链路的技术,该技术即为结合的接入和回程(Integrated Access and Backhaul,IAB)技术,能够提供更加灵活和密集的NR小区的部署且不会大规模地增加传输网络。其中,在IAB的网络结构中,宿主基站(Donor 5G NodeB,DgNB)可以与核心网直接相连,并且可连接多个中继节点(Relay Node,RN),中继节点可连接其他的中继节点。基站之间的链路(包括宿主基站与中继节点之间的链路,以及,中继节点和中继节点之间的链路)称为回程(Backhaul)链路。用户设备与基站之间的链路(包括宿主基站与用户设备之间的链路,以及,中继节点和用户设备之间的链路)称为接入(Access)链路。用户设备(User Equipment,UE)可以与宿主基站或者中继节点连接,用户设备与宿主基站直接相连,即为一跳链路。用户设备还可以通过一个或多个中继节点与宿主基站相连,即为多跳链路。
在长期演进(Long Term Evolution,LTE)系统中,用户设备可以与基站直接连接,或者,用户设备可以通过一个中继节点与基站连接。在长期演进系统(Long Term Evolution,LTE)中,中继节点为层3协议栈中的无线链路控制(Radio Link Control,RLC)负责进行将接收到的乱序的数据包进行重排序,递交给其上层的分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层。在5G系统的NR中,中继节点为层2协议栈中的RLC层不再具有重排序功能。因此,在5G系统的多跳链路中用户设备与宿主基站进行数据处理时会产生丢包的问题,严重影响了数据传输的准确性,降低了通信效率,用户体验较差。
发明内容
本申请提供一种数据处理的方法及设备,可以解决在5G系统的多跳链路中用户设备与宿主基站进行数据处理时会产生丢包的问题,提高了数据传输的准确性和数据传输的效率,提高用户体验。
第一方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
该第一设备发送第一数据单元组,该第一数据单元组在第一序列范围内;
该第一设备通过该至少一个中继节点接收第一信息,该第一信息用于指示该第二设备已收到和/或未收到的该第一数据单元组中的数据单元;
该第一设备根据该第一信息确定第二序列范围。
在本申请实施例的技术方案中,第一设备可以发送第一序列范围中的数据单元,第一设备根据第二设备已收到和/或未收到的该第一数据单元组中的数据单元的第一信息确定第二序列范围,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
应理解,在上行传输场景下,第一设备可以为终端设备,第二设备可以为基站。终端设备发送第一数据单元组,该第一数据单元组在第一序列范围内;终端设备通过该至少一个中继节点接收第一信息,该第一信息用于指示该宿主基站已收到和/或未收到的该第一数据单元组中的数据单元;该终端设备根据该第一信息确定第二序列范围。
在下上行传输场景下,第一设备可以为宿主基站,第二设备可以为终端设备。宿主基站发送第一数据单元组,该第一数据单元组在第一序列范围内;宿主基站通过该至少一个中继节点接收第一信息,该第一信息用于指示该终端设备已收到和/或未收到的该第一数据单元组中的数据单元;该宿主基站根据该第一信息确定第二序列范围。
结合第一方面,在第一方面的第一种可能的实现方式中,该第一设备根据该第一信息确定第二序列范围,包括:
若该第一信息中包括该第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将该第一序列范围顺延N个序列得到该第二序列范围,其中,N为正整数。
结合第一方面或第一方面的第一种可能的实现方式,在第二种可能的实现方式中,该第一设备通过至少一个中继节点接收第一信息,包括:
该第一设备接收通过该至少一个中继节点转发的该第二设备发送的第一消息,该第一消息包括第一信息。
结合第一方面的第二种可能的实现方式,在第三种可能的实现方式中,该第一消息为PDCP实体的状态报告;或,
该第一消息为无线路径控制协议RLC实体的状态报告。
结合第一方面或第一方面的第一种可能的实现方式,在第四种可能的实现方式中,该第一设备通过至少一个中继节点接收第一信息,包括:
该第一设备接收该至少一个中继节点根据该第二设备发送的第一消息得到的第二消息,该第二消息包括该第一信息。
结合第一方面的第四种可能的实现方式,在第五种可能的实现方式中,该第二消息为所述至少一个中继节点根据该第一消息和该至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
结合第一方面的第五种可能的实现方式,在第六种可能的实现方式中,该第二消息为RLC实体的状态报告。
结合第一方面的第二种或第三种可能的实现方式,在第七种可能的实现方式中,该第一消息为周期性发送的消息。
在本申请实施例的技术方案中,通过周期性发送第一消息,从而保证了通信系统的稳定性。
结合第一方面的第二种可能的实现方式,在第八种可能的实现方式中,在该第一设备接收通过该至少一个中继节点转发的该第二设备的第一消息之前,该方法还包括:
该第一设备向该第二设备发送查询请求。
第二方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第一中继节点接收该第一中继节点的上一跳中继节点或第二设备发送的第一信息,该第一信息用于指示该第二设备已收到和/或未收到的第一数据单元组中的数据单元,该第一数据单元组在第一序列范围内;
该第一中继节点转发该第一信息。
在本申请实施例的技术方案中,第一设备可以发送第一序列范围中的数据单元,第一设备根据第二设备已收到和/或未收到的该第一数据单元组中的数据单元的第一信息确定第二序列范围,其中,第二设备发送的第一信息通过第一中继节点转发至第一设备,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
第三方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第一中继节点接收第二设备发送的第一信息,该第一信息用于指示该第二设备已收到和/或未收到的第一数据单元组中的数据单元,该第一数据单元组在第一序列范围内;
该第一中继节点发送第二信息,该第二信息为根据该第一中继节点维护的发送与接收数据单元的编号映射关系和该第一信息确定的。
在本申请实施例的技术方案中,第一设备可以发送第一序列范围中的数据单元,第一设备根据第二设备已收到和/或未收到的该第一数据单元组中的数据单元的第一信息确定第二序列范围,其中,第一中继节点将第二设备发送的第一信息进行处理得到第二信息,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
第四方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第一中继节点接收该第一设备发送的第一数据单元组;
该第一中继节点对该第一数据单元组中的数据单元添加编号。
在本申请实施例的技术方案中,第一中继节点能够对数据单元添加编号,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
应理解,第一中继节点可以为与第一设备直接进行通信的中继节点。
结合第四方面,在第四方面的第一种可能的实现方式中,该第一中继节点对该第一数据单元组中的数据单元添加编号,包括:
该第一中继节点对该第一数据单元组中的数据单元按照接收顺序添加编号。
结合第四方面或第四方面的第一种可能的实现方式,在第二种可能的实现方式中,该第一中继节点对该第一数据单元组中的数据单元添加编号之前,该方法还包括:
该第一中继节点对该第一数据单元组中的数据单元进行排序。
结合第四方面或第四方面的第一种或第二种可能的实现方式,在第三种可能的实现方式中,该第一中继节点的适配层具有排序的功能;或
该第一中继节点的无线路径控制协议RLC实体具有排序功能;和/或
该第一中继节点的适配层具有所述添加编号的功能。
例如,第一中继节点的适配层具有编号的功能或排序的功能。
例如,第一中继节点的适配层具有编号的功能和排序的功能。
例如,第一中继节点的无线路径控制协议RLC实体具有排序功能和第一中继节点的适配层具有所述添加编号的功能。
例如,第一中继节点的无线路径控制协议RLC实体具有排序功能或第一中继节点的适配层具有所述添加编号的功能。
结合第四方面的第三中可能的实现方式,在第四种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第四方面的第三种可能的实现方式,在第五种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第五方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第二中继节点接收与该第二中继节连接的中继节点发送的数据单元,该述数据单元具有编号;
该第二中继节点对该具有编号的该数据单元进行排序。
在本申请实施例的技术方案中,第二中继节点能够将具有编号的数据单元进行排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
应理解,第二中继节点可以为中间中继节点,即为不与第一设备或第二设备直接进行通信的中继节点。
结合第五方面,在第五方面的第一种可能的实现方式中,该编号为第一中继节点添加的,该第一中继节点为与该终端设备直接进行通信的中继节点;或
所述编号为与该第二中继节点直接通信的中继节点添加的。
结合第五方面或第五方面的第一种可能的实现方式,在第二种可能的实现方式中,该第二中继节点的适配层具有排序的功能;或,
该第二中继节点的无线路径控制协议RLC实体具有排序的功能。
第五方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
第五方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第六方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第一中继节点接收至少一个中继节点发送的具有编号的数据单元;
该第一中继节点根据该编号对该数据单元进行排序;
该第一中继节点向该第一设备按所述编号顺序发送第一数据单元组,该第一数据单元组为排序后的所述数据单元。
在本申请实施例的技术方案中,第一中继节点能够将数据单元进行添加编号或排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第六方面,在第六方面的第一种可能的实现方式中,该编号为该第二设备的适配层添加的。
结合第六方面,在第六方面的第二种可能的实现方式中,该第一中继节点的适配层具有排序的功能;或
该第一中继节点的无线路径控制协议RLC实体具有排序功能。
结合第六方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第六方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第七方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第二中继节点接收与该第二中继节连接的中继节点发送的数据单元,该数据单元具有编号;
该第二中继节点对该具有编号的数据单元进行排序。
在本申请实施例的技术方案中,第二中继节点能够将具有编号的数据单元进行排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第七方面,在第七方面的第一种可能的实现方式中,该编号为该第二设备的适配层添加的;或
该编号为与第二中继节点直接通信的中继节点添加。
结合第七方面的第一种可能的实现方式,在第二种可能的实现方式中,该第二中继节点的适配层具有排序的功能;或,
该第二中继节点的无线路径控制协议RLC实体具有排序功能。
结合第七方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第七方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第八方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
该第一设备接收第三消息,该第三消息包括该第一设备与该第二设备进行通信的跳数信息;
该第一设备根据该跳数信息确定第一序列范围,该第一序列范围用于指示该第一 设备分配的序列号范围。
在本申请实施例的技术方案中,通过控制发送端允许发送的数据单元的最大数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第八方面,在第八方面的第一种可能的实现方式中,该第一序列范围小于或等于分配序列号的数量,该分配序列号的数量为序列号空间/跳数/2。
结合第八方面或第八方面的第一种可能的实现方式,在第二种可能的实现方式中,该第三消息为广播的消息。
结合第八方面或第八方面的第一种可能的实现方式,在第三种可能的实现方式中,该第三消息为通过专用信令发送的消息。
结合第八方面或第八方面的第一种至第三种任一种可能的实现方式,在第四种可能的实现方式中,该第三消息为该第二设备发送的。
结合第八方面或第八方面的第一种至第三种任一种可能的实现方式,在第五种可能的实现方式中,该第三消息为该至少一个中继节点发送的。
第九方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
第一中继节点确定第一跳数信息,该第一中继节点为与该第一设备直接进行通信的中继节点;
该第一中继节点向该第一设备发送第三消息,该第三消息包括该第一跳数信息;
其中,该第一跳数信息为该至少一个中继节点的数量或该至少一个中继节点的数量加一。
在本申请实施例的技术方案中,通过控制发送端的数据单元的数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第九方面,在第九方面的第一种可能的实现方式中,向该第一设备发送第三消息,包括:
通过广播向该第一设备发送该第三消息。
结合第九方面,在第九方面的第二种可能的实现方式中,向该第一设备发送第三消息,包括:
通过专用信令向该第一设备发送该第三消息。
结合第九方面,在第九方面的第三种可能的实现方式中,该第一中继节点确定该第一跳数信息,包括:
该第一中继节点将该第一中继节点的上一跳中继节点广播的第二跳数信息加一,得到该第一跳数信息。
第十方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
该第一设备通过至少一个中继节点接收该第二设备发送的第一数据单元,该第一数据单元携带计数值;
该第一设备根据该第一数据单元携带的计数值处理该第一数据单元。
在本申请实施例的技术方案中,发送端存在发送窗口的最大边沿,接收端不存在接收窗口的最大边沿,通过发送携带计数值的数据单元,从而对数据单元进行处理,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第十方面,在第十方面的第一种可能的实现方式中,该第一设备根据该第一数据单元携带的计数值处理该第一数据单元,包括:
若该第一数据单元的计数值大于当前已递交的最后一个数据单元的计数值的下一个计数值,则存储该第一数据单元;或
若该第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交该第一数据单元至分组数据汇聚协议PDCP实体的上层;或
若该第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃该第一数据单元。
结合第十方面的第一种可能的实现方式,在第二种可能的实现方式中,该方法还包括:
存储该第一数据单元,按照该第一数据单元的计数值的顺序递交该第一数据单元至PDCP实体的上层。
结合第十方面或第十方面的第一种可能或第二种可能的实现方式,在第三种可能的实现方式中,该第一数据单元在该第一序列范围内。
结合第十方面的第三种可能的实现方式,在第四种可能的实现方式中,该第一序列范围指示该第二设备允许分配的计数值范围,或该第二设备发送该第一数据单元时允许分配的计数值范围。
结合第十方面的第三种或第四种可能的实现方式,在第五种可能的实现方式中,该第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
第十一方面,提供了一种数据处理的方法,其中,第一设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方法包括:
该第二设备通过至少一个中继节点向该第一设备发送的第一数据单元,该第一数据单元携带计数值;
该第一数据单元属于第一序列范围,该第一序列范围用于指示该第二设备允许分配的计数值范围。
结合第十一方面,在第十一方面的第一种可能的实现方式中,该第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
第十二方面,提供一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发模块,用于发送第一数据单元组,所述第一数据单元组在第一序列范围内;
所述收发模块,还用于通过所述至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元;
处理模块,用于根据所述第一信息确定第二序列范围。
结合第十二方面,在第十二方面的第一种可能的实现方式中,所述处理模块还用于:
若所述第一信息中包括所述第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
结合第十二方面或第十二方面的第一种可能的实现方式,在第二种可能的实现方式中,所述收发模块还用于:
接收通过所述至少一个中继节点转发的所述第二设备发送的第一消息,所述第一消息包括所述第一信息。
结合第十二方面的第二种可能的实现方式,在第三种可能的实现方式中,所述第一消息为PDCP实体的状态报告;或,
所述第一消息为无线路径控制协议RLC实体的状态报告。
结合第十二方面或第十二方面的第一种可能的实现方式,在第四种可能的实现方式中,所述收发模块还用于:接收所述至少一个中继节点根据所述第二设备发送的第一消息得到的第二消息,所述第二消息包括所述第一信息。
结合第十二方面的第四种可能的实现方式,在第五种可能的实现方式中,所述第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
结合第十二方面的第五种可能的实现方式,在第六种可能的实现方式中,所述第二消息为RLC实体的状态报告。
结合第十二方面的第二种或第三种可能的实现方式,在第七种可能的实现方式中,所述第一消息为周期性发送的消息。
结合第十二方面的第二种可能的实现方式,在第八种可能的实现方式中,所述通信设备还包括:
查询模块,用于向所述第二设备发送查询请求。
第十三方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发模块,用于接收所述第一中继节点的上一跳中继节点或第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
所述收发模块,还用于转发所述第一信息。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
第十四方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发模块,用于接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
处理模块,用于生成第二消息,所述第二信息为根据所述通信设备维护的发送与接收数据单元的编号映射关系和所述第一信息确定的。
收发模块,还用于发送第二信息。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
第十五方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发模块,用于接收所述第一设备发送的第一数据单元组;
处理模块,用于对所述第一数据单元组中的数据单元添加编号。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
结合第十五方面,在第十五方面的第一种可能的实现方式中,所述处理模块还用于对所述第一数据单元组中的数据单元按照接收顺序添加编号。
结合第十五方面或第十五方面的第一种可能的实现方式,在第二种可能的实现方式中,所述处理模块还用于对所述第一数据单元组中的数据单元进行排序。
结合第十五方面或第十五方面的第一种或第二种可能的实现方式,在第三种可能的实现方式中,所述通信设备的适配层具有排序的功能;或
所述通信设备的无线路径控制协议RLC实体具有排序功能;和/或
所述通信设备的适配层具有所述添加编号的功能。
结合第十五方面的第三种可能的实现方式,在第四种可能的实现方式中,所述适配层位于无线链路控制RLC实体的上方。
结合第十五方面的第三种可能的实现方式,在第五种可能的实现方式中,所述适配层位于介质访问控制MAC实体的上方。
第十六方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发模块,用于接收与所述通信设备连接的中继节点发送的数据单元,所述数据单元具有编号;
处理模块,用于对所述具有编号的所述数据单元进行排序。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第二中继节点,即通信设备可以为中间的中继节点。
结合第十六方面,在第十六方面的第一种可能的实现方式中,所述编号为第一中继节点添加的,所述第一中继节点为与第一设备直接通信的中继节点;或
所述编号为与所述通信设备直接通信的中继节点添加的。
结合第十六方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一中继节点的适配层具有排序的功能;或
所述第一中继节点的无线路径控制协议RLC实体具有排序功能;和/或
所述第一中继节点的适配层具有所述添加编号的功能。
结合第十六方面或第十六方面的第一种可能的实现方式中,在第三种可能的实现 方式中,所述通信设备的适配层具有排序的功能;或,
所述通信设备的无线路径控制协议RLC实体具有排序功能。
结合第十六方面的第二种或第三种可能的实现方式中,在第四种可能的实现方式中,所述适配层位于无线链路控制RLC实体的上方。
结合第十六方面的第二种或第三种可能的实现方式中,在第五种可能的实现方式中,所述适配层位于介质访问控制MAC实体的上方。
第十七方面,提供了一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发模块,用于接收至少一个中继节点发送的具有编号的数据单元;
处理模块,用于根据该编号对该数据单元进行排序;
收发模块,还用于向该第一设备按所述编号顺序发送第一数据单元组,该第一数据单元组为排序后的所述数据单元。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
在本申请实施例的技术方案中,第一中继节点能够将数据单元进行添加编号或排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第十七方面,在第十七方面的第一种可能的实现方式中,该编号为该第二设备的适配层添加的。
结合第十七方面,在第十七方面的第二种可能的实现方式中,该通信设备的适配层具有排序的功能;或
该通信设备的无线路径控制协议RLC实体具有排序功能。
结合第十七方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第十七方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第十八方面,提供了一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方通信设备包括:
收发模块,用于接收与该通信设备连接的中继节点发送的数据单元,该数据单元具有编号;
处理模块,用于对该具有编号的数据单元进行排序。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第二中继节点,即通信设备可以为中间的中继节点。
在本申请实施例的技术方案中,第二中继节点能够将具有编号的数据单元进行排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第十八方面,在第十八方面的第一种可能的实现方式中,该编号为该第二设备的适配层添加的;或
该编号为与第二中继节点直接通信的中继节点添加。
结合第十八方面的第一种可能的实现方式,在第二种可能的实现方式中,该通信设备的适配层具有排序的功能;或,
该通信设备的无线路径控制协议RLC实体具有排序功能。
结合第十八方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第十八方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第十九方面,提供了一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发模块,用于接收第三消息,该第三消息包括该第一设备与该第二设备进行通信的跳数信息;
处理模块,用于根据该跳数信息确定第一序列范围,该第一序列范围用于指示该第一设备分配的序列号范围。
在本申请实施例的技术方案中,通过控制发送端允许发送的数据单元的最大数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第十九方面,在第十九方面的第一种可能的实现方式中,该第一序列范围小于或等于分配序列号的数量,该分配序列号的数量为序列号空间/跳数/2。
结合第十九方面或第十九方面的第一种可能的实现方式,在第二种可能的实现方式中,该第三消息为广播的消息。
结合第十九方面或第十九方面的第一种可能的实现方式,在第三种可能的实现方式中,该第三消息为通过专用信令发送的消息。
结合第十九方面或第十九方面的第一种至第三种任一种可能的实现方式,在第四种可能的实现方式中,该第三消息为该第二设备发送的。
结合第十九方面或第十九方面的第一种至第三种任一种可能的实现方式,在第五种可能的实现方式中,该第三消息为该至少一个中继节点发送的。
第二十方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,该至少一个通信设备不具有分组数据汇聚协议PDCP实体,该通信设备包括:
处理模块,用于确定第一跳数信息,该通信模块为与该第一设备直接进行通信的中继节点;
收发模块,用于向该第一设备发送第三消息,该第三消息包括该第一跳数信息;
其中,该第一跳数信息为该至少一个通信设备的数量或该至少一个通信设备的数量加一。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
在本申请实施例的技术方案中,通过控制发送端的数据单元的数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传 输的效率。
结合第二十方面,在第二十方面的第一种可能的实现方式中,收发模块还用于:
通过广播向该第一设备发送该第三消息。
结合第二十方面,在第二十方面的第二种可能的实现方式中,收发模块还用于:
通过专用信令向该第一设备发送该第三消息。
结合第二十方面,在第二十方面的第三种可能的实现方式中,处理模块还用于:
将该通信设备的上一跳中继节点广播的第二跳数信息加一,得到该第一跳数信息。
第二十一方面,提供了一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发模块,用于通过至少一个中继节点接收该第二设备发送的第一数据单元,该第一数据单元携带计数值;
处理模块,用于根据该第一数据单元携带的计数值处理该第一数据单元。
在本申请实施例的技术方案中,发送端存在发送窗口的最大边沿,接收端不存在接收窗口的最大边沿,通过发送携带计数值的数据单元,从而对数据单元进行处理,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第二十一方面,在第二十一方面的第一种可能的实现方式中,处理模块还用于:
若该第一数据单元的计数值大于当前已递交的最后一个数据单元的计数值的下一个计数值,则存储该第一数据单元;或
若该第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交该第一数据单元至分组数据汇聚协议PDCP实体的上层;或
若该第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃该第一数据单元。
结合第二十一方面的第一种可能的实现方式,在第二种可能的实现方式中,该通信设备还包括:
存储模块,用于存储该第一数据单元,按照该第一数据单元的计数值的顺序递交该第一数据单元至PDCP实体的上层。
结合第二十一方面或第二十一方面的第一种可能或第二种可能的实现方式,在第三种可能的实现方式中,该第一数据单元在该第一序列范围内。
结合第二十一方面的第三种可能的实现方式,在第四种可能的实现方式中,该第一序列范围指示该第二设备允许分配的计数值范围,或该第二设备发送该第一数据单元时允许分配的计数值范围。
结合第二十一方面的第三种或第四种可能的实现方式,在第五种可能的实现方式中,该第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
第二十二方面,提供了一种通信设备,第一设备通过至少一个中继节点与所述通信设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发模块,通过至少一个中继节点向该第一设备发送的第一数据单元,该第一数 据单元携带计数值;
该第一数据单元属于第一序列范围,该第一序列范围用于指示该第二设备允许分配的计数值范围。
结合第二十二方面,在第二十二方面的第一种可能的实现方式中,该第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
第二十三方面,提供一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发器,用于发送第一数据单元组,所述第一数据单元组在第一序列范围内;
所述收发器,还用于通过所述至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元;
处理器,用于根据所述第一信息确定第二序列范围。
结合第二十三方面,在第二十三方面的第一种可能的实现方式中,所述处理器还用于:
若所述第一信息中包括所述第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
结合第二十三方面或第二十三方面的第一种可能的实现方式,在第二种可能的实现方式中,所述收发器还用于:
接收通过所述至少一个中继节点转发的所述第二设备发送的第一消息,所述第一消息包括所述第一信息。
结合第二十三方面的第二种可能的实现方式,在第三种可能的实现方式中,所述第一消息为PDCP实体的状态报告;或,
所述第一消息为无线路径控制协议RLC实体的状态报告。
结合第二十三方面或第二十三方面的第一种可能的实现方式,在第四种可能的实现方式中,所述收发器还用于:接收所述至少一个中继节点根据所述第二设备发送的第一消息得到的第二消息,所述第二消息包括所述第一信息。
结合第二十三方面的第四种可能的实现方式,在第五种可能的实现方式中,所述第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
结合第二十三方面的第五种可能的实现方式,在第六种可能的实现方式中,所述第二消息为RLC实体的状态报告。
结合第二十三方面的第二种或第三种可能的实现方式,在第七种可能的实现方式中,所述第一消息为周期性发送的消息。
结合第二十三方面的第二种可能的实现方式,在第八种可能的实现方式中,所述收发器还用于向所述第二设备发送查询请求。
第二十四方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发器,用于接收所述第一中继节点的上一跳中继节点或第二设备发送的第一信 息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
所述收发器,还用于转发所述第一信息。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
第二十四方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发器,用于接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
处理器,用于生成第二消息,所述第二信息为根据所述通信设备维护的发送与接收数据单元的编号映射关系和所述第一信息确定的。
收发器,还用于发送第二信息。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
第二十四方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发器,用于接收所述第一设备发送的第一数据单元组;
处理器,用于对所述第一数据单元组中的数据单元添加编号。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
结合第二十四方面,在第二十四方面的第一种可能的实现方式中,所述处理器还用于对所述第一数据单元组中的数据单元按照接收顺序添加编号。
结合第二十四方面或第二十四方面的第一种可能的实现方式,在第二种可能的实现方式中,所述处理器还用于对所述第一数据单元组中的数据单元进行排序。
结合第二十四方面或第二十四方面的第一种或第二种可能的实现方式,在第三种可能的实现方式中,所述通信设备的适配层具有排序的功能;或
所述通信设备的无线路径控制协议RLC实体具有排序功能;和/或
所述通信设备的适配层具有所述添加编号的功能。
结合第二十四方面的第三种可能的实现方式,在第四种可能的实现方式中,所述适配层位于无线链路控制RLC实体的上方。
结合第二十四方面的第三种可能的实现方式,在第五种可能的实现方式中,所述适配层位于介质访问控制MAC实体的上方。
第二十五方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
收发器,用于接收与所述通信设备连接的中继节点发送的数据单元,所述数据单元具有编号;
处理器,用于对所述具有编号的所述数据单元进行排序。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第二中继节点,即通信设备可以为中间的中继节点。
结合第二十五方面,在第二十五方面的第一种可能的实现方式中,所述编号为第一中继节点添加的,所述第一中继节点为与第一设备直接通信的中继节点;或
所述编号为与所述通信设备直接通信的中继节点添加的。
结合第二十五方面的第一种可能的实现方式,在第二种可能的实现方式中,所述第一中继节点的适配层具有排序的功能;或
所述第一中继节点的无线路径控制协议RLC实体具有排序功能;和/或
所述第一中继节点的适配层具有所述添加编号的功能。
结合第二十五方面或第二十五方面的第一种可能的实现方式中,在第三种可能的实现方式中,所述通信设备的适配层具有排序的功能;或,
所述通信设备的无线路径控制协议RLC实体具有排序功能。
结合第二十五方面的第二种或第三种可能的实现方式中,在第四种可能的实现方式中,所述适配层位于无线链路控制RLC实体的上方。
结合第二十五方面的第二种或第三种可能的实现方式中,在第五种可能的实现方式中,所述适配层位于介质访问控制MAC实体的上方。
第二十六方面,提供了一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发器,用于接收第三消息,该第三消息包括该第一设备与该第二设备进行通信的跳数信息;
处理器,用于根据该跳数信息确定第一序列范围,该第一序列范围用于指示该第一设备分配的序列号范围。
在本申请实施例的技术方案中,通过控制发送端允许发送的数据单元的最大数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第二十六方面,在第二十六方面的第一种可能的实现方式中,该第一序列范围小于或等于分配序列号的数量,该分配序列号的数量为序列号空间/跳数/2。
结合第二十六方面或第二十六方面的第一种可能的实现方式,在第二种可能的实现方式中,该第三消息为广播的消息。
结合第二十六方面或第二十六方面的第一种可能的实现方式,在第三种可能的实现方式中,该第三消息为通过专用信令发送的消息。
结合第二十六方面或第二十六方面的第一种至第三种任一种可能的实现方式,在第四种可能的实现方式中,该第三消息为该第二设备发送的。
结合第二十六方面或第二十六方面的第一种至第三种任一种可能的实现方式,在第五种可能的实现方式中,该第三消息为该至少一个中继节点发送的。
第二十七方面,提供了一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发器,用于接收至少一个中继节点发送的具有编号的数据单元;
处理器,用于根据该编号对该数据单元进行排序;
收发器,还用于向该第一设备按所述编号顺序发送第一数据单元组,该第一数据单元组为排序后的所述数据单元。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
在本申请实施例的技术方案中,第一中继节点能够将数据单元进行添加编号或排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第二十七方面,在第二十七方面的第一种可能的实现方式中,该编号为该第二设备的适配层添加的。
结合第二十七方面,在第二十七方面的第二种可能的实现方式中,该通信设备的适配层具有排序的功能;或
该通信设备的无线路径控制协议RLC实体具有排序功能。
结合第二十七方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第二十七方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第二十八方面,提供了一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该方通信设备包括:
收发器,用于接收与该通信设备连接的中继节点发送的数据单元,该数据单元具有编号;
处理器,用于对该具有编号的数据单元进行排序。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第二中继节点,即通信设备可以为中间的中继节点。
在本申请实施例的技术方案中,第二中继节点能够将具有编号的数据单元进行排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第二十八方面,在第二十八方面的第一种可能的实现方式中,该编号为该第二设备的适配层添加的;或
该编号为与第二中继节点直接通信的中继节点添加。
结合第二十八方面的第一种可能的实现方式,在第二种可能的实现方式中,该通信设备的适配层具有排序的功能;或,
该通信设备的无线路径控制协议RLC实体具有排序功能。
结合第二十八方面的第二种可能的实现方式,在第三种可能的实现方式中,该适配层位于无线链路控制RLC实体的上方。
结合第二十八方面的第二种可能的实现方式,在第四种可能的实现方式中,该适配层位于介质访问控制MAC实体的上方。
第二十九方面,提供了一种通信设备,第一设备通过至少一个通信设备与第二设 备进行通信,该至少一个通信设备不具有分组数据汇聚协议PDCP实体,该通信设备包括:
处理模器,用于确定第一跳数信息,该通信设备为与该第一设备直接进行通信的中继节点;
收发模器,用于向该第一设备发送第三消息,该第三消息包括该第一跳数信息;
其中,该第一跳数信息为该至少一个通信设备的数量或该至少一个通信设备的数量加一。
需要说明的是,本申请实施例的通信设备可以对应于上述方法中的中继节点。例如,第一中继节点。
在本申请实施例的技术方案中,通过控制发送端的数据单元的数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第二十九方面,在第二十九方面的第一种可能的实现方式中,收发器还用于:
通过广播向该第一设备发送该第三消息。
结合第二十九面,在第二十九方面的第二种可能的实现方式中,收发器还用于:
通过专用信令向该第一设备发送该第三消息。
结合第二十九方面,在第二十九方面的第三种可能的实现方式中,处理器还用于:
将该通信设备的上一跳中继节点广播的第二跳数信息加一,得到该第一跳数信息。
第三十方面,提供了一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发器,用于通过至少一个中继节点接收该第二设备发送的第一数据单元,该第一数据单元携带计数值;
处理器,用于根据该第一数据单元携带的计数值处理该第一数据单元。
在本申请实施例的技术方案中,发送端存在发送窗口的最大边沿,接收端不存在接收窗口的最大边沿,通过发送携带计数值的数据单元,从而对数据单元进行处理,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
结合第三十方面,在第三十方面的第一种可能的实现方式中,处理器还用于:
若该第一数据单元的计数值大于当前已递交的最后一个数据单元的计数值的下一个计数值,则存储该第一数据单元;或
若该第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交该第一数据单元至分组数据汇聚协议PDCP实体的上层;或
若该第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃该第一数据单元。
结合第三十方面的第一种可能的实现方式,在第二种可能的实现方式中,该通信设备还包括:
存储器,用于存储该第一数据单元,按照该第一数据单元的计数值的顺序递交该第一数据单元至PDCP实体的上层。
结合第三十方面或第三十方面的第一种可能或第二种可能的实现方式,在第三种 可能的实现方式中,该第一数据单元在该第一序列范围内。
结合第三十方面的第三种可能的实现方式,在第四种可能的实现方式中,该第一序列范围指示该第二设备允许分配的计数值范围,或该第二设备发送该第一数据单元时允许分配的计数值范围。
结合第三十方面的第三种或第四种可能的实现方式,在第五种可能的实现方式中,该第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
第三十一方面,提供了一种通信设备,第一设备通过至少一个中继节点与所述通信设备进行通信,该至少一个中继节点不具有分组数据汇聚协议PDCP实体,该通信设备包括:
收发器,通过至少一个中继节点向该第一设备发送的第一数据单元,该第一数据单元携带计数值;
该第一数据单元属于第一序列范围,该第一序列范围用于指示该第二设备允许分配的计数值范围。
结合第三十一方面,在第三十一方面的第一种可能的实现方式中,该第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
第三十二方面,提供了一种芯片系统,应用于通信设备中,该芯片系统包括:至少一个处理器、至少一个存储器和接口电路,该接口电路负责该芯片系统与外界的信息交互,该至少一个存储器、该接口电路和该至少一个处理器通过线路互联,该至少一个存储器中存储有指令;该指令被该至少一个处理器执行,以进行上述各个方面的该的方法中该通信设备的操作。
第三十三方面,提供了一种通信系统,包括:通信设备;其中,该通信设备为上述各个方面该的通信设备。
第三十四方面,提供了一种计算机程序产品,应用于通信设备中,该计算机程序产品包括一系列指令,当该指令被运行时,以进行上述各个方面的该的方法中该通信设备的操作。
第三十五方面,提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行上述各个方面的该的方法。
附图说明
图1是适用于本申请的数据处理的方法的通信系统的示意图。
图2是根据本申请实施的数据处理的方法的场景200的示意性结构图。
图3是本申请一个实施例的数据单元的计数值(COUNT)结构的示意性结构图。
图4是本申请一个实施例的数据单元处理的方法的示意图。
图5是本申请一个实施例的数据单元处理的方法的示意图。
图6是本申请一个实施例的数据单元处理的方法的示意性交互流程图。
图7是本申请另一个实施例的数据单元处理的方法的示意性交互流程图。
图8是本申请另一个实施例的数据单元处理的方法的示意性交互流程图。
图9是本申请另一个实施例的数据单元处理的方法的示意图。
图10是本申请又一个实施例的数据单元处理的方法的示意图。
图11是本申请又一个实施例的数据单元处理的方法的示意图。
图12是本申请又一个实施例的数据单元处理的方法的示意图。
图13是本申请又一个实施例的数据单元处理的方法的示意性交互流程图。
图14是本申请又一个实施例的数据单元处理的方法的示意性交互流程图。
图15是本申请又一个实施例的数据单元处理的方法的示意图。
图16是本申请又一个实施例的数据单元处理的方法的示意性交互流程图。
图17是本申请一个实施例的通信设备1200的示意性框图。
图18是本申请一个实施例的通信设备1300的示意性框图。
图19是本申请一个实施例的通信设备1400的示意性框图。
图20是本申请一个实施例的通信设备1500的示意性框图。
具体实施方式
在5G系统的NR中,申请人发现中继节点为层2中继即不包含PDCP层时,由于中继节点的RLC层不具有重排序功能,多跳链路中的传输在每一跳都会在前一跳的基础上进一步乱序。可能导致在5G系统的多跳链路中用户设备与宿主基站进行数据处理时会产生丢包的问题,严重影响了数据传输的准确性,降低了通信效率,用户体验较差。以下提出的方案可以解决在5G系统的多跳链路中用户设备与宿主基站进行数据处理时会产生丢包的问题,提高了数据传输的准确性和数据传输的效率,提高用户体验。
下面将结合附图,对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、未来的第五代(5th Generation,5G)系统或新无线(New Radio,NR)等。
本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备,未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network,PLMN)中的终端设备等,本申请实施例对此并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备,该网络设备可以是全球移动通讯(Global System of Mobile communication,GSM)系统或码分多址(Code Division Multiple Access,CDMA)中的基站(Base Transceiver Station,BTS),也可以是宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统中的基站(NodeB,NB),还可以是LTE系统中的演进型基站(Evolutional NodeB,eNB或eNodeB),还可以是云无线接入网络(Cloud Radio Access Network,CRAN)场景下的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未 来演进的PLMN网络中的网络设备等,本申请实施例并不限定。
图1是适用于本申请的通信方法的通信系统的示意图。如图1所示,该通信系统100包括网络设备102,网络设备102可包括多个天线例如,天线104、106、108、110、112和114。另外,网络设备102可附加地包括发射机链和接收机链,本领域普通技术人员可以理解,它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、编码器、解复用器或天线等)。
网络设备102可以与多个终端设备(例如终端设备116和终端设备122)通信。然而,可以理解,网络设备102可以与类似于终端设备116或122的任意数目的终端设备通信。终端设备116和122可以是,例如蜂窝电话、智能电话、便携式电脑、手持通信设备、手持计算设备、卫星无线电装置、全球定位系统、PDA和/或用于在无线通信系统100上通信的任意其它适合设备。
如图1所示,终端设备116与天线112和114通信,其中天线112和114通过前向链路118向终端设备116发送信息,并通过反向链路120从终端设备116接收信息。此外,终端设备122与天线104和106通信,其中天线104和106通过前向链路124向终端设备122发送信息,并通过反向链路126从终端设备122接收信息。
例如,在FDD系统中,例如,前向链路118可利用与反向链路120所使用的不同频带,前向链路124可利用与反向链路126所使用的不同频带。
再例如,在TDD系统和全双工(full duplex)系统中,前向链路118和反向链路120可使用共同频带,前向链路124和反向链路126可使用共同频带。
被设计用于通信的每个天线(或者由多个天线组成的天线组)和/或区域称为网络设备102的扇区。例如,可将天线组设计为与网络设备102覆盖区域的扇区中的终端设备通信。在网络设备102通过前向链路118和124分别与终端设备116和122进行通信的过程中,网络设备102的发射天线可利用波束成形来改善前向链路118和124的信噪比。此外,与网络设备通过单个天线向它所有的终端设备发送信号的方式相比,在网络设备102利用波束成形向相关覆盖区域中随机分散的终端设备116和122发送信号时,相邻小区中的移动设备会受到较少的干扰。
在给定时间,网络设备102、终端设备116或终端设备122可以是无线通信发送装置和/或无线通信接收装置。当发送数据时,无线通信发送装置可对数据进行编码以用于传输。具体地,无线通信发送装置可获取(例如生成、从其它通信装置接收、或在存储器中保存等)要通过信道发送至无线通信接收装置的一定数目的数据比特。这种数据比特可包含在数据的传输块(或多个传输块)中,传输块可被分段以产生多个码块。
此外,该通信系统100可以是PLMN网络或者设备与设备(device-to-device,D2D)网络或者机器与机器(machine to machine,M2M)网络或者其他网络,图1只是举例的简化示意图,网络中还可以包括其他网络设备,图1中未予以画出。
图2是能够适用本申请实施例通信方法的系统200的示意图。如图2所示,为5G中一种可能的IAB的网络结构图。该系统200包括接入网设备,接入网设备包括宿主基站(Donor 5G NodeB,DgNB)210,一个或多个中继节点(Relay Node,RN),例如,中继节点201、中继节点102、和中继节点203。接入网设备可以与多个终端设备(例如,终端设备221和终端设备222)通信。
如图2所示的IAB的网络结构图,该网络结构由于5G的新空口技术支持结合的接入 和回程技术。在图2中,宿主基站与核心网可以直接相连。例如,可以连接多个中继节点,中继节点可连接其他的中继节点,此处的中继节点可以为基站。在基站之间的路径,例如,宿主基站与中继节点之间的路径,以及,中继节点和中继节点之间的路径均可以称为回程路径。终端设备可以与宿主基站或者中继节点连接,终端设备与宿主基站直接相连,即为一跳路径。终端设备还可以通过一个或多个中继节点与宿主基站连接,即为多跳路径。终端设备与基站之间的路径,例如,宿主基站与终端设备之间的路径,以及,中继节点和终端设备之间的路径均称为接入路径。
需要说明的是,图2所示的应用场景中,终端设备可以通过多个中继节点与宿主基站进行通信,一方面中继节点可以提供较大的网络覆盖面降低通信成本;另一方面,通过中继节点提供了一种无线传输的通信方法。
应理解,图2只是举例的简化示意图,网络中还可以包括其他接入网设备,图2中未予以画出。
在5G系统的空口中传输数据单元时,虽然数据单元(服务数据单元)在发射端(发送设备)空口是按序发出,但由于多个HARQ进程的并行运行,在接收端(接收设备)接收的顺序很有可能是乱序的。数据单元在发射端的PDCP层加上序列号(Sequence Number,SN),PDCP的接收实体会利用SN进行重排序和重复检测,保证顺序提交以及检测重复的单元。发射端与接收端同时还需要维护着相同的超帧号(Hyper Frame Number,HFN),使用HFN目的是为了降低空口上传输的比特数,即只用传输序列号。SN和HFN和起来组成了数据单元的计数(COUNT)值。每一个数据单元都有一个COUNT值,发射端(发送设备)空口就是按照数据单元的COUNT值从小到大的顺序进行发送的。发射端需要维护发送的SN不超过总SN数的一半,以免造成帧号混乱。同样的,接收端也将以SN数一半的长度为接收窗。在接收端,收到的数据单元也可能是乱序的,但是由于发送端在空口发送不超过一半SN数的数据单元,因此,接收的数据单元递交到PDCP层通常是乱序的,但是虽然乱序也将在接收窗内,PDCP层将把在接收窗内的数据单元按COUNT值排序,按照COUNT值的顺序按序递交给上层。
图3是数据单元的计数值(COUNT)结构的示意性结构图。从图3中可以看出,数据单元的COUNT值由SN字段和HFN字段组成,其中,HFN字段部分的比特数(bit)和SN字段部分的比特数(bit)之和为32比特,即数据单元中COUNT字段为32比特。
在5G NR中,接收设备的PDCP实体依据数据单元(服务数据单元)的COUNT值对接收到的数据单元进行重排序。其排序及递交过程如下:
接收到一个数据单元后,首先根据其SN号及维护的HFN,推断出当前接收到的COUNT值。
判断接收到的数据单元的COUNT值是否在有效的接收窗内:即是否大于等于下一个将要递交的COUNT值。若不在有效的接收窗内,就会丢掉接收到的数据单元。若在有效的接收窗内,会将有效的数据单元存在PDCP层,然后按序递交。
图4是示出了现有技术中数据单元处理的方法的示意性流程图。图3中的数据单元处理的方法可以用于图2所示的通信系统中。
需要说明的是,针对确认模式的数据(AM DRB)传输,通过RLC层的反馈来控制发送序列号范围,是一种比较直观的方法来控制不发送多于一半SN的数据;针对非确认模式的数据(UM DRB)传输,可以通过MAC的HARQ进程反馈,控制发送序列号范围, 来实现不发送多于一半SN的数据。
在IAB的多跳链路的场景下,由于存在多跳链路因此会出现数据单元的乱序传输。如图4所示,终端设备发送在发送窗口内序列号为1至N号的数据单元,,该发送窗口为当前发送端可以发送的序列号范围,由于空口的乱序,导致第一中继节点处接收到乱序的数据单元,例如图4中所示,一种可能的情况,第一中继节点可能会接收到发送端发出的1号数据单元后,成功接收到了N+1号数据单元,而2号至N号数据单元均处于重传状态。
第一跳乱序接收的数据单元会以接收到的顺序即乱序继续发出,例如,中继节点1收到的乱序数据单元会继续向中继节点2发送。而发送端根据第一跳的接收数据单元的反馈确定分配序列号的范围或称之为“发送窗口”,即更多的数据可以被发送端发送给第一跳的节点,将导致在空口上同时有接收窗内的数据单元(例如,序列号为1至N号数据单元)和接收窗外的数据单元(例如,序列号为1至N号之外的数据单元)在同时传输。由于第二跳的空口传输仍然是乱序的,可能导致接收窗内的数据先于接收窗外的数据到达接收端,将造成接收端接收到的数据单元超出接收窗口,从而接收端进行了数据单元丢弃。
需要说明的是,在数据单元传输的过程中,接收端仅能识别与发送端发送窗口相对应的接收窗口内的数据单元,超出接收窗口的数据单元接收端会识别成过期数据,将出现误以为已经接收过该数据单元从而进行丢弃的情况。例如,若发送窗口内对应的数据单元的序列号为1至N号,则此时接收端的接收窗口可以识别序列号为1至N号的数据单元,1号至N号之外的数据单元被当做上一轮已经接收过该数据单元进行丢弃。
对于确认模式(Acknowledge Mode,AM)的上行数据传输如图4所示。假设发送的所有PDCP的SN为2N个数值,则一次可以同时在空口发送N个PDCP数据单元,此时第一跳接收端不会出现由于空口乱序导致的数据包超窗的情况。当发送端收到第一跳接收端的第1号数据单元的反馈时,可以发出N+1号数据单元。
考虑一种可能的接收状况,第一跳的接收端(中继节点1)接收到1号数据单元后,先接到了发射端又发出的N+1号数据单元后,然后才接到了2号数据单元。由于在5G系统中RLC层不再具有重排序功能,而由层2协议栈中的PDCP层负责对接收到的乱序的数据单元进行重排序,中继节点不具有PDCP层因此无法进行重排序。中继节点1按照当前接收数据单元的顺序进行发送(1,N+1,2,N…),在第二跳的接收端(中继节点2)接收时,由于乱序可能导致先接收到的是PDCP的N+1号数据单元,接收顺序可能为(N+1,1,N,2…)。若传输到宿主基站时,接收数据单元的顺序可能为(N+1,1,N,2…),由于当前的接收窗为1到N号,N+1号数据单元将直接被认为超出接收窗口被丢弃。
对于非确认模式(Unacknowledged Mode,UM)的上行数据传输如图5所示。在UM模式下,RLC层对于不进行分割的数据单元不进行编号。因此,从RLC的角度,上层给RLC多少数据单元,若空口资源允许的条件下,则空口可能就会有多少数据单元发出多少数据单元,由于数据单元在空口上的乱序,并且在中继间空口上的发送窗口大小不受控,可能导致接收端接收时有大量的数据单元由于超窗造成丢失。
本申请的实施例能够保证接收窗口的数据单元不会出现由于超出接收窗口而造成的数据单元的丢包行为。下面将结合具体的例子详细描述本申请实施例。应注意,这只是为了帮助本领域技术人员更好地理解本申请实施例,而非限制本申请实施例的范围。
应理解,本申请的应用场景可以为在5G系统中或未来通信系统中,终端设备与宿主基站之间整个控制面建立完成之后,终端设备与宿主基站之间进行的数据处理。
图6是本申请一个实施例的通信方法500的示意性流程图,该通信方法500可以应用在图2所示的场景中的上行传输的场景,当然也可以应用在其他通信场景中,本申请实施例在此不作限制。该通信方法500包括:
S510,第一设备发送第一数据单元组,所述第一数据单元组在第一序列范围内。此处以上行传输场景为例,例如,第一设备可以为终端设备,第二设备可以为宿主基站。
需要说明的是,第一序列范围为终端设备可以发送的数据单元的范围。
S520,第一设备通过至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元。例如,终端设备通过至少一个中继节点接收第一信息,所述第一信息用于指示宿主基站已收到和/或未收到的所述第一数据单元组中的数据单元。
S530,第一设备根据所述第一信息确定第二序列范围。例如,终端设备根据第一信息确定第二序列范围。
在本申请的实施例中,第一设备可以发送第一序列范围中的数据单元,第一设备根据第二设备已收到和/或未收到的该第一数据单元组中的数据单元的第一信息确定第二序列范围,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
可选地,在本申请的一个实施例中,第一设备根据所述第一信息确定第二序列范围,包括:
若第一信息中包括第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
例如,第一序列范围可以为终端设备的发送窗口,第一序列范围为序列号为1号至10号数据单元。第一数据单元组可以为1号至10号数据单元,当第一信息中包括第二设备接成功接收1号数据单元和2号数据单元的信息时,则第一序列范围顺延2个序列确定第二序列范围为3号至13号。
需要说明的是,当第一信息中包括宿主基站成功接收1号数据单元和5号数据单元时,则第一序列范围顺延1个序列确定第二序列范围为2号至11号。若第一信息中包括宿主基站成功接收2号数据包和3号数据包时,则第一序列范围不顺延。应理解,当第一信息中包括宿主基站成功接收到从首个数据单元开始的连续的N个数据单元接收成功的信息时,即接收到从1号数据单元开始连续N个数据单元接收成功的信息时,第一序列范围顺延N个序列确定第二序列。
应理解,第一序列范围可以为终端设备的发送窗口,发送窗口可以小于或等于一半的SN空间。
应理解,第一序列范围为终端设备的可以发送的数据单元的序列号范围,终端设备发送的序列号范围应该在第一序列范围内。确定了第二序列范围后,终端设备发送的序列号应该在第二序列范围内。可选地,在本申请的一个实施例中,第一设备接收的第一消息为第二设备发送的消息,第一设备接收通过至少一个中继节点转发的第二设备的第一消息。
例如,终端设备通过至少一个中继节点的转发从而接收宿主基站发送的第一消息,其中第一消息包括用于指示宿主基站已收到和/或未收到的所述第一数据单元组中的数据单元的第一信息。
例如,第一数据单元组包括数据单元a、数据单元b、数据单元c、数据单元d、数据单元e,这5个数据单元的序列号可以为1号至5号数据单元,终端设备通过至少一个中继节点将第一数据单元组发送至宿主基站,宿主基站接收到了1号至3号数据单元,未接收到4号和5号数据单元,宿主基站会发送第一信息,第一信息中包括宿主基站接收到1号至3号数据单元,未接收到4号和5号数据单元的信息,宿主基站向至少一个中继节点发送第一消息,至少一个中继节点转发该第一消息,将该第一消息中转发至终端设备,其中,第一消息中包括第一信息。
应理解,在本实施例中,至少一个中继节点只对宿主基站发送的第一消息进行转发,最终发送至终端设备,中继节点并不对该第一消息进行处理。
可选地,在一个实施例中,第一中继节点接收所述第一中继节点的上一跳中继节点或第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
所述第一中继节点转发所述第一信息。
可选地,第一消息可以为宿主基站发送的PDCP实体的状态报告,或者,第一消息可以为宿主基站发送的RLC实体的状态报告。
在本申请的一个实施例中,第一消息可以为宿主基站周期性向终端设备发送的消息。
在本申请的一个实施例中,第一消息可以为在终端设备向宿主基站发送查询请求,例如查询宿主基站对于第一数据单元组的接收情况时,宿主基站向终端设备发送的消息。
可选地,在本申请的一个实施例中,终端设备接收至少一个中继节点根据宿主基站发送的第一消息得到的第二消息,第二消息中包括用于指示所述宿主基站已收到和/或未收到的所述第一数据单元组中的数据单元的第一信息。第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
在一个示例中,假设终端设备与宿主基站通过中继节点1、中继节点2进行通信,即终端设备-中继节点1-中继节点2-宿主基站。终端设备向宿主基站发送a、b、c、d、e这5个数据单元,终端设备的RLC实体对这5个数据单元分别加包头,包头含有编号:a-1、b-2、c-3、d-4、e-5,终端设备首先向中继节点1发送5个数据单元,中继节点1维护一个发送与接收数据单元的编号映射关系。
例如,在中继节点1处维护的映射关系为1-6、2-7、3-8、4-9、5-10,即在中继节点1处将a、b、c、d、e这5个数据单元的包头1、2、3、4、5去掉,然后给数据单元重新添加新的包头a-6、b-7、c-8、d-9、e-10。接着中继节点1向中继节点2发送5个数据单元,中继节点2也会维护一个发送与接收数据单元的编号映射关系。
例如,在中继节点2处维护的映射关系为6-11、7-12、8-13、9-14、10-15,即在中继节点2处将a、b、c、d、e这5个数据单元在中继节点1处添加的包头6、7、8、9、10去掉,然后给数据单元重新添加新的包头a-11、b-12、c-13、d-14、e-15。中继节点2向宿主基站发送这5个数据单元,例如,若宿主基站处成功接收数据单元的包头为11、12、13的数据单元,未成功接收数据单元的包头为14、15的数据单元,宿主基站的PDCP层能够识别去掉包头的11、12、13的数据单元为数据单元a、数据单元b、数据单元c,此时宿主基站发送第一消息,即宿主基站接收到了数据单元a、数据单元b、数据单元c,未接收到包头为14、15的数据单元,即宿主基站向中继节点2发送第一消息宿主基站成功接 收到了包头为11、12、13的数据单元,未接收到包头为14、15的数据单元。中继节点2根据维护的发送与接收数据单元的编号映射关系6-11、7-12、8-13、9-14、10-15,向中继节点发送处理过的第一消息,即向中继节点1发送宿主基站成功接收到了包头为6、7、8的数据单元,未接收到包头为9、10的数据单元,中继节点1根据维护的发送与接收数据单元的编号映射关系1-6、2-7、3-8、4-9、5-10向终端发送处理过第一消息得到的第二消息,即向终端设备发送宿主基站成功接收到了包头为1、2、3的数据单元,未接收到包头为4、5的数据单元,终端设备接收到第二消息后可知宿主基站已成功接收数据单元a、数据单元b、数据单元c,未成功接收数据单元d、e。其中,第二消息可以为RLC实体的状态报告。
可选地,在一个实施例中,第一中继节点接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
所述第一中继节点发送第二信息,所述第二信息为根据所述第一中继节点维护的发送与接收数据单元的编号映射关系和所述第一信息确定的,所述第二信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元。
需要说明的是,中继节点1和中继节点2维护的编号映射关系可以为其接收到的数据单元的RLC实体的编号和中继节点向下一跳中继节点发送的数据单元的RLC实体的编号的映射关系,即中继节点接收到的数据单元的编号与发送出去的数据单元的编号的映射关系。
应理解,上述实施例的描述为在上行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在下行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
图7是本申请一个实施例的通信方法600的示意性流程图,该通信方法600可以应用在图2所示的场景中的上行传输或下行传输的场景,当然也可以应用在其他通信场景中,本申请对此不作限定。以上行传输为例,该通信方法600包括:
S610,第一中继节点接收所述第一设备发送的第一数据单元组。
例如,在上行传输的场景中,第一中继节点接收终端设备发送的第一数据单元组。
S620,第一中继节点对所述第一数据单元组中的数据单元添加编号。
可选地,在本申请的一个实施例中,第一中继节点对所述第一数据单元组中的数据单元添加编号,包括:
第一中继节点对所述第一数据单元组中的数据单元按照接收顺序添加编号。
可选地,在本申请的一个实施例中,第一中继节点对所述第一数据单元组中的数据单元添加编号之前,所述方法还包括:
所述第一中继节点对所述第一数据单元组中的数据单元进行排序。
在本申请的实施例中,在本申请实施例的技术方案中,第一中继节点能够对数据单元添加编号,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
需要说明的是,第一中继节点为与所述第一设备直接通信的中继节点。例如,在上行传输场景下第一中继节点为可以为与终端设备直接进行通信的中继节点。
可选地,在一个实施例中,第一中继节点可以具有排序的功能和编号的功能;或者, 第一中继节点可以具有编号功能;或者,第一中继节点具有排序功能。本申请对此不作限定。
图8是本申请一个实施例的通信方法400的示意性流程图,该通信方法400可以应用在图2所示的场景中的上行传输或下行传输的场景,当然也可以应用在其他通信场景中,本申请对此不作限定。以下行传输为例,该通信方法400包括:
S410,第一中继节点接收至少一个中继节点或第二设备发送的具有编号的数据单元。
S420,第一中继节点根据所述编号对所述数据单元进行排序。
例如,在下行传输的场景中,基站通过第三中继节点、第二中继节点、第一中继节点与终端设备进行通信,其中,第三中继节点与基站直接进行通信,第三中继节点接收基站发送的第一数据单元组,并按照接收顺序将第一数据单元组进行添加编号;第三中继节点将具有编号的第一数据单元组向第二中继节点发送,当第二中继节点接收到具有编号的第一数据单元组后可以对第一数据单元组可以对第一数据单元组进行排序;或者第二中继节点可以不对第一数据单元组排序,直接将具有编号的第一数据单元组发送至第一中继节点;第一中继节点接收具有编号的数据单元,并按照编号对数据单元进行排序。
S430,第一中继节点向所述第一设备按所述编号顺序发送第一数据单元组,所述第一数据单元组为排序后的所述数据单元。
在本申请的实施例中,在本申请实施例的技术方案中,第一中继节点能够对数据单元添加编号,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
例如,在下行传输的场景下,基站通过第三中继节点、第二中继节点、第一中继节点与终端设备进行通信,第一中继节点接收第二中继节点发送的具有编号的数据单元,第一中继节点根据编号对数据单元进行排序,并向终端设备按编号顺序发送第一数据单元组,第一数据单元组为排序后的数据单元。
在本申请的一个实施例中,如图9所示,图9为根据本申请的实施例的数据处理的方法的示意图。
第一设备通过至少一个中继节点与第二设备进行通信。例如,第一设备可以通过第一中继节点、第二中继节点、第三中继节点与第二设备进行通信。其中,第一中继节点为与第一设备连接的中继节点,在本申请的实施例中第一中继节点具有加编号和排序的功能。
例如,终端设备向第一中继节点发送序列号为1号至5号数据单元,第一中继节点接收到的数据单元的序列顺序为2号数据单元、1号数据单元、3号数据单元、4号数据单元、5号数据单元。第一中继节点可以对接收到的数据单元进行加编号,第一中继节点可以根据接收数据单元的序列顺序进行编号,例如,第一中继节点将序列为2号的数据单元编号为①,将序列为1号的数据单元编号为②、将序列为3号的数据单元编号为③、将序列为4号的数据单元编号为④、将序列为5号的数据单元编号为⑤,第一中继节点可以将数据单元的编号挂在数据单元的包头上。
应理解,数据单元的序列号为PDCP层可以识别的编号,中继节点不具有PDCP层因此无法识别。第一中继节点按接收顺序将数据单元进行编号①②③④⑤,第一中继节点增加的编号为中继节点可以识别的编号。
如图9所示,第一中继节点将具有编号的数据单元发送至第二中继节点,第二中继节点可以不按照数据单元新增的编号进行排序,第二中继节点将数据单元发送至第三中继节 点,第三中继节点将数据单元发送至第二设备,所述第二设备按照新增的编号进行排序后,再上交给第二设备的PDCP层,从而确保第二设备的PDCP层接收到的数据单元不会超出接收窗口,第二设备的PDCP层再根据PDCP层的编号进行排序,避免第二设备由于数据单元的超出接收窗口而造成的丢包现象。
根据图9所示,第一中继节点的适配层可以具有排序和编号的功能;或者,第一中继节点的适配层可以具有排序的功能;或者第一中继节点的适配层可以具有编号的功能。本申请对此不作限定。
可选地,第二中继节点的适配层可以具有排序的功能;或者,第二中继节点的RLC实体具有排序功能。本申请对此不作限定。
可选地,在本申请的实施例中,适配层可以位于RLC实体的上方;或者,适配层可以位于MAC实体的上方。
图10为根据本申请的另一个实施例的数据处理的方法的示意图。如图10所示第一设备通过至少一个中继节点与第二设备进行通信。例如,第一设备可以通过第一中继节点、第二中继节点、第三中继节点与第二设备进行通信。其中,第一中继节点为与第一设备连接的中继节点,在本申请的实施例中第一中继节点具有加编号的功能。
第一中继节点将具有编号的数据单元发送至第二中继节点,第二中继节点可以将数据单元按照编号进行排序,然后第二中继节点可以将具有编号的数据单元发送至第三中继节点,第三中继节点可以将数据单元按照编号进行排序,第三中继节点将排序后的数据单元发送至第二设备,从而确保第二设备接收到的数据单元不会超出接收窗口,从而避免第二设备由于数据单元的超出接收窗口而造成的丢包现象。
在本申请的一个实施例中,第二中继节点接收与所述第二中继节连接的中继节点发送的数据单元,所述数据单元具有编号;所述第二中继节点对所述具有编号的所述数据单元进行排序。
图11为根据本申请的另一个实施例的处理方法示意图。在一个实施例中,第一设备为终端设备,上行传输场景下,如图所示,中继节点的RLC层的具有排序功能。如图11所示,图11为根据本申请的另一个实施例的数据处理的方法的示意图。在图11中第一设备可以为终端设备,第二设备可以为基站。
根据图11所示的数据的处理方法,中继节点的RLC层具有排序的功能,第一中继节点向第二中继节点发送具有编号的数据单元;第二中继节点根据数据单元的编号进行排序,并将排序后的数据单元发送至第三中继节点;第三中继节点根据数据单元的编号将数据单元进行排序,向基站发送具有排序后的数据单元。
应理解,数据单元的序列号为PDCP层可以识别的编号,中继节点不具有PDCP层因此无法识别PDCP层编号。第一中继节点的RLC接收实体根据RLC层的编号,对接收的数据单元进行排序,并按照接收顺序,在RLC层编号,发送给第二中继节点,第三中继节点的RLC接收实体根据RLC层的编号,对接收的数据单元进行排序,并按照接收顺序,在RLC层编号,发送给第二设备,第二设备的RLC层根据RLC层编号排序后递交给PDCP层。
可选地,在一个实施例中,第一设备为终端设备,下行传输场景下,如图所示,中继节点的RLC层的具有排序功能。如图12所示,图12为根据本申请的另一个实施例的数据处理的方法的示意图。在图12中第一设备可以为终端设备,第二设备可以为基站。
根据图12所示的数据的处理方法,中继节点的RLC层具有排序的功能,第三中继节点接收基站发送的数据单元,并将数据单元进行编号和排序;第三中继节点向第二中继节点发送排序后的具有编号的数据单元;第二中继节点根据数据单元的编号进行排序,并将排序后的数据单元发送至第一中继节点;第一中继节点根据数据单元的编号将数据单元进行排序,向终端设备发送具有排序后的数据单元。
应理解,数据单元的序列号为PDCP层可以识别的编号,中继节点不具有PDCP层因此无法识别PDCP层编号。第三中继节点的RLC接收实体根据RLC层的编号,对接收的数据单元进行排序,并按照接收顺序,在RLC层编号后发送给第二中继节点,第一中继节点的RLC接收实体根据RLC层的编号,对接收的数据单元进行排序,并按照接收顺序,在RLC层编号,发送给第一设备,第一设备的RLC层根据RLC层编号排序或按照接收顺序递交给PDCP层。
在本申请实施例的技术方案中,第二中继节点能够将具有编号的数据单元进行排序,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
图13是本申请一个实施例的通信方法700的示意性流程图,该通信方法700可以应用在图2所示的场景中的上行传输的场景,当然也可以应用在其他通信场景中,本申请对此不作限定。该通信方法700包括:
S710,所述第一设备接收第三消息,所述第三消息包括所述第一设备与所述第二设备进行通信的跳数信息。
例如,终端设备接收第三消息,第三消息包括跳数信息。若终端设备和宿主基站之间通过一个中继节点进行通信,则跳数信息为两跳;若终端设备和宿主基站之间通过两个中继节点进行通信,则跳数信息为三跳。
可选地,第三消息可以为广播的消息;或者,第三消息可以为通过专用信令发送的消息。
可选地,第三消息可以为宿主基站通过中继节点转发向终端设备发送的消息;或者,第三消息可以为中继节点向终端设备发送的消息。
S720,第一设备根据所述第三消息确定第一序列范围,所述第一序列范围用于指示所述第一设备分配的序列号范围,或用于指示允许发送的数据单元的最大数量。
例如,终端设备根据第三消息包括的跳数信息确定第一序列范围,第一序列范围可以为终端设备的发送窗口,终端设备可以发送第一序列范围包括的数据单元。第一序列范围小于或等于分配序列号,所述分配的序列号为序列号空间/跳数/2。所述序列号空间(SN space)为序列号的总数,如序列号为12比特,则序列号空间为2 12
例如,图15所示,图15为根据本申请的实施例的数据处理的方法的示意图。图15中以两跳为例进行举例说明。
宿主基站向终端设备发送第三消息,第三消息可以为广播消息或专用消息,通知终端设备到宿主基站的跳数。终端设备根据到宿主基站的跳数X,控制分配的SN数不超过序列号空间(SN space)/跳数(X)/2。也需要在每一跳控制针对该承载的数据单元同时在空口发送的数据单元数量不超过SN space/X/2。
以两跳为例,宿主基站的接收窗口长度为2N,应理解接收窗口的长度为SN space/2,则发送端终端设备控制分配数据单元的SN数量不超过2N/2=N个。如图15所示,即可保 证接收端宿主基站的PDCP接收到的数据单元不会超出接收窗口,从而避免宿主基站由于数据单元的超出接收窗口而造成的丢包现象。
在一种实现的可能中,控制分配的SN数不超过序列号空间(SN space)/2 跳数(X)/2。需要说明的是,上述实施例的描述为在上行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在下行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
在本申请实施例的技术方案中,通过控制发送端允许发送的数据单元的最大数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
图14是本申请一个实施例的通信方法800的示意性流程图,该通信方法800可以应用在图2所示的场景中的上行传输的场景,当然也可以应用在其他通信场景中,本申请对此不作限定。该通信方法800包括:
S810,第一中继节点确定第一跳数信息,所述第一中继节点为与所述第一设备直接进行通信的中继节点。
例如,第一设备可以为终端设备,第二设备可以为基站。
例如,终端设备接收第三消息,第三消息包括跳数信息。若终端设备和宿主基站之间通过一个中继节点进行通信,则跳数信息为两跳;若终端设备和宿主基站之间通过两个中继节点进行通信,则跳数信息为三跳。
或者,若终端设备和宿主基站之间通过一个中继节点进行通信,则跳数信息为一跳;若终端设备和宿主基站之间通过两个中继节点进行通信,则跳数信息为两跳。
可选地,第一中继节点确定第一跳数信息,包括:
第一中继节点将所述第一中继节点的上一跳中继节点广播的跳数信息加一,得到所述至少一个中继节点的数量。
例如,第一中继节点连接第二中继节点,第一中继节点接收到第二中继节点广播的跳数信息为第二中继节点为两跳,则第一中继节点在第二中继节点广播的跳数信息上加一,即第一中继节点处为三跳。
可选地,第三消息可以为广播的消息;或者,第三消息可以为通过专用信令发送的消息。
可选地,第三消息可以为宿主基站通过中继节点转发向终端设备发送的消息;或者,第三消息可以为中继节点向终端设备发送的消息。
S820,第一中继节点向所述第一设备发送第三消息,所述第三消息包括所述第一跳数信息;其中,所述第一跳数信息为所述至少一个中继节点的数量或所述至少一个中继节点的数量加一。
可选地,所述第一中继节点确定所述第一跳数信息,包括:
所述第一中继节点将所述第一中继节点的上一跳中继节点广播的第二跳数信息加一,得到所述第一跳数信息。
例如,终端设备根据第三消息包括的第一跳数信息确定第一序列范围,第一序列范围可以为终端设备的发送窗口,终端设备可以发送第一序列范围包括的数据单元。
第一序列范围小于或等于分配序列号,所述分配的序列号为序列号空间/跳数/2。所述序列号空间(SN space)为序列号的总数。例如,序列号为12比特,则序列号空间为2 12
例如,图15所示,图15为根据本申请的实施例的数据处理的方法的示意图。图15中以两跳为例进行举例说明。
中继通过向终端设备发送第三消息,第三消息可以为广播消息或专用消息,通知终端设备到宿主基站的跳数。终端设备根据到宿主基站的跳数X,控制分配的SN数不超过SN space/X/2。也需要在每一跳控制针对该承载的数据单元同时在空口发送的数据单元数量不超过SN space/X/2。
以两跳为例,宿主基站的接收窗口长度为2N,应理解接收窗口的长度为SN space/2,则发送端终端设备控制分配数据单元的SN数量不超过2N/2=N个。如图13所示,即可保证接收端宿主基站的PDCP接收到的数据单元不会超出接收窗口,从而避免宿主基站由于数据单元的超出接收窗口而造成的丢包现象。
需要说明的是,上述实施例的描述为在上行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在下行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
在本申请实施例的技术方案中,通过控制发送端允许发送的数据单元的最大数量,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
图16是本申请一个实施例的数据处理的方法900的示意性流程图,该通信方法900可以应用在图2所示的场景中的下行传输的场景,当然也可以应用在其他通信场景中,本申请对此不作限定。该通信方法900包括:
S910,第一设备通过至少一个中继节点接收所述第二设备发送的第一数据单元,所述第一数据单元携带计数值。其中,第一设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体。例如,终端设备接收宿主基站发送的第一数据单元,第一数据单元携带计数值,如图3所示的每一个数据单元都有一个COUNT值,发射端(发送设备)空口就是按照数据单元的COUNT值从小到大的顺序进行发送的。
需要说明的是,在本申请的实施例中第一设备可以为终端设备,在空口中发送的数据单元携带COUNT值,并且发送端(例如,宿主基站)仍存在发送窗口即发送COUNT在一定范围内的数据包,但接收端(例如,终端设备)无接收窗口的最大边沿。
可选地,在本申请的一个实施例中,第一数据单元在第一序列范围内。即第一数据单元在发送端的发送窗口内。
可选地,在本申请的一个实施例中,第一序列范围用于指示所述第二设备允许分配的计数值范围,或所述第二设备发送所述第一数据单元时允许分配的计数值范围。即第二设备需要再发送窗口允许的范围内发送的第一数据单元。第二设备发送的第一数据单元需要在发送时位于发送窗口允许的范围内。
可选地,在本申请的一个实施例中,第一序列范围为一半的序列号空间或者小于一半的序列号空间。即发送端存在的发送窗口允许发送的数据单元的最大数量为一半的序列号空间,宿主基站可以发送第一序列范围内的数据单元。
S920,第一设备根据所述第一数据单元携带的计数值处理所述第一数据单元。
例如,终端设备根据第一数据单元的COUNT值处理第一数据单元。
可选地,在一个实施例中,若所述第一数据单元的计数值大于当前已递交的最后一个 数据单元的计数值的下一个计数值,则存储所述第一数据单元。
例如,已经递交的最后一个数据单元的COUNT值为10,则已递交的最后一个数据单元的计数值的下一个COUNT值为11,若第一数据单元的COUNT值为12,则在终端设备存储第一数据单元。
应理解,当第一数据单元的COUNT值大于当前已递交的最后一个数据单元的计数值的下一个计数值时,说明终端设备还未存储该第一数据单元,终端设备将第一数据单元先进行存储并按序递交至PDCP实体的上层。
若所述第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交所述第一数据单元至分组数据汇聚协议PDCP实体的上层。
例如,已经递交的最后一个数据单元的COUNT值为10,则已递交的最后一个数据单元的计数值的下一个COUNT值为11,若第一数据单元的COUNT值为11,则在终端设备递交该第一数据单元至PDCP实体的上层。
若所述第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃所述第一数据单元。
例如,已经递交的最后一个数据单元的COUNT值为10,则已递交的最后一个数据单元的计数值的下一个COUNT值为11,若第一数据单元的COUNT值为9,则丢弃所述第一数据单元。
应理解,当第一数据单元的COUNT值小于当前已递交的最后一个数据单元的计数值的下一个计数值时,说明终端设备已经存储了该第一数据单元,则当再次收到该数据单元时,丢弃该数据单元。
在本申请的一个实施例中,在上行传输场景下,第二设备通过至少一个中继节点向第一设备发送第一数据单元,所述第一数据单元携带计数值,其中,第一设备通过至少一个中继节点与第二设备进行通信,至少一个中继节点不具有分组数据汇聚协议PDCP实体。第一数据单元属于第一序列范围,所述第一序列范围用于指示所述第二设备允许分配的计数值范围,或所述第二设备发送所述第一数据单元时允许分配的计数值范围。
可选地,所述第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
需要说明的是,上述实施例的描述为在下行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在上行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
在本申请实施例的技术方案中,发送端存在发送窗口的最大边沿,接收端不存在接收窗口的最大边沿,通过发送携带计数值的数据单元,从而对数据单元进行处理,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
应理解,在本申请的各种实施例中,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,而不应对本申请实施例的实施过程构成任何限定。
上文详细描述了根据本申请实施例的数据处理的方法,在本申请中第一设备根据第一信息确定第二序列范围,具体地,第一设备通过至少一个中继节点接收第一信息,该第一信息用于指示该第二设备已收到和/或未收到的该第一数据单元组中的数据单元,从而提高了数据传输的准确性和数据传输的效率。应理解,本申请实施例的数据处理的设备可以执 行前述本申请实施例的各种方法,即以下各种产品的具体工作过程,可以参考前述方法实施例中的对应过程。
下面将结合图17至图20,详细描述本申请的通信设备实施例。应理解,方法实施例的描述与通信设备实施例的描述相互对应,因此,未详细描述的部分可以参见前面方法实施例。
图17是本申请实施例提供的数据处理的通信设备1200的示意性框图。在上行传输场景下,该通信设备1200可以对应于各方法实施例中的第一设备,可以具有方法中的第一设备的任意功能。
如图17所示,该通信设备1200可以包括:收发模块1210和处理模块1220。
收发模块1210和处理模块1220之间通过内部连接通路互相通信,传递控制和/或数据信号。在一个可能的设计中,收发模块1210和处理模块1220可以通过芯片实现,以实现在本申请实施例中终端设备的相应功能。
在本申请的一个实施例中通信设备1200通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体。在上行传输场景下,通信设备1200可以为终端设备,第二设备可以为宿主基站。通信设备1200包括收发模块1210和处理模块1220。
所述收发模块1210,用于发送第一数据单元组,该第一数据单元组在第一序列范围内。
所述收发模块1210,还用于通过所述至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元。
所述处理模块1220,用于根据所述第一信息确定第二序列范围。
应理解,第一序列范围可以为发送端的发送窗口,终端设备可以发送第一序列范围内的数据单元。
可选地,处理模块1220还用于:
若所述第一信息中包括所述第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
可选地,收发模块1210还用于:
接收通过所述至少一个中继节点转发的所述第二设备发送的第一消息,所述第一消息包括所述第一信息。
可选地,所述第一消息为PDCP实体的状态报告;或,所述第一消息为无线路径控制协议RLC实体的状态报告。
可选地,所述第一消息为周期性发送的消息。
可选地,收发模块1210还用于:
向所述第二设备发送查询请求。
可选地,收发模块1210还用于:
接收所述至少一个中继节点根据所述第二设备发送的第一消息得到的第二消息,所述第二消息包括所述第一信息。
可选地,所述第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
可选地,所述第二消息为RLC实体的状态报告。
应理解,上述实施例的描述为在上行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在下行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
在本申请的一个实施例中通信设备1200通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体。在上行传输场景下,通信设备1200可以为终端设备,第二设备可以为宿主基站。通信设备1200包括收发模块1210和处理模块1220。
所述收发模块1210,用于接收第三消息,所述第三消息包括所述第一设备与所述第二设备进行通信的跳数信息。
所述处理模块1220,用于根据所述跳数信息确定第一序列范围,所述第一序列范围用于指示所述第一设备分配的序列号范围,或用于指示允许发送的数据单元的最大数量。。
例如,终端设备接收第三消息,第三消息包括跳数信息。若终端设备和宿主基站之间通过一个中继节点进行通信,则跳数信息为两跳;若终端设备和宿主基站之间通过两个中继节点进行通信,则跳数信息为三跳。
可选地,所述第一序列范围小于或等于分配序列号的数量,所述分配序列号的数量为序列号空间/跳数/2。
可选地,所述第三消息为广播的消息。
可选地,所述第三消息为通过专用信令发送的消息。
可选地,所述第三消息为所述第二设备发送的。
例如,所述第三消息为宿主基站发送的消息。
可选地,所述第三消息为所述至少一个中继节点发送的。
应理解,上述实施例的描述为在下行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在上行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
在本申请的一个实施例中通信设备1200通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体。在上行传输场景下,通信设备1200可以为终端设备,第二设备可以为宿主基站。通信设备1200包括收发模块1210和处理模块1220。
所述收发模块1210,用于通过至少一个中继节点接收所述第二发送的第一数据单元,所述第一数据单元携带计数值。
所述处理模块1220,用于根据所述第一数据单元携带的计数值处理所述第一数据单元。
例如,终端设备通过至少一个中继节点接收宿主基站发送的第一数据单元,所述第一数据单元携带计数值;
所述终端设备根据所述第一数据单元携带的计数值处理所述第一数据单元。
可选地,处理单元1220,还用于:
若所述第一数据单元的计数值大于当前已递交的最后一个数据单元的计数值的下一个计数值,则存储所述第一数据单元;或
若所述第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交所述第一数据单元至分组数据汇聚协议PDCP实体的上层;或
若所述第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃所述第一数据单元。
可选地,处理单元1220还用于:
存储所述第一数据单元,按照所述第一数据单元的计数值的顺序递交所述第一数据单元至PDCP实体的上层。
例如,已经递交的最后一个数据单元的COUNT值为10,则已递交的最后一个数据单元的计数值的下一个COUNT值为11,若第一数据单元的COUNT值为12,则在终端设备存储第一数据单元。
应理解,当第一数据单元的COUNT值大于当前已递交的最后一个数据单元的计数值的下一个计数值时,说明终端设备还未存储该第一数据单元,终端设备将第一数据单元先进行存储并按序递交至PDCP实体的上层。
若所述第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交所述第一数据单元至分组数据汇聚协议PDCP实体的上层。
例如,已经递交的最后一个数据单元的COUNT值为10,则已递交的最后一个数据单元的计数值的下一个COUNT值为11,若第一数据单元的COUNT值为11,则在终端设备递交该第一数据单元至PDCP实体的上层。
若所述第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃所述第一数据单元。
例如,已经递交的最后一个数据单元的COUNT值为10,则已递交的最后一个数据单元的计数值的下一个COUNT值为11,若第一数据单元的COUNT值为9,则丢弃所述第一数据单元。
应理解,当第一数据单元的COUNT值小于当前已递交的最后一个数据单元的计数值的下一个计数值时,说明终端设备已经存储了该第一数据单元,则当再次收到该数据单元时,丢弃该数据单元。
可选地,所述第一数据单元在所述第一序列范围内。
可选地,所述第一序列范围指示所述第二设备允许分配的计数值范围。
可选地,所述第一序列范围指示所述第一数据单元发送时,所述第二设备允许分配的计数值范围。
可选地,所述第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
需要补充第二设备的发送部分。
需要说明的是,上述实施例的描述为在下行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在上行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
图18是本申请实施例提供的数据处理的通信设备1300的示意性框图。该通信设备1300可以对应于各方法实施例中的中继节点,可以具有方法中的中继节点的任意功能。
在本申请的一个实施例中第一设备通过至少一个通信设备1300与第二设备进行通信,其中,所述至少一个通信设备1300不具有分组数据汇聚协议PDCP实体。
如图13所示,该通信设备1300可以包括:收发模块1310和处理模块1320。
收发模块1310和处理模块13220之间通过内部连接通路互相通信,传递控制和/或数据信号。在一个可能的设计中,收发模块13210和处理模块1320可以通过芯片实现,以 实现在本申请实施例中终端设备的相应功能。
如图18所示,该通信设备1300可以包括:收发模块1310和处理模块1320。
需要说明的是,该通信设备1300可以为与第一设备直接相连的第一中继节点,即端中继节点,也可以为与第一中继节点相连的第二中继节点,即中间中继节点。
在本申请的一个实施例中,该通信设备1300为第一中继节点时;即通信设备1300为与第一设备直接相连的第一中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述收发模块1310,用于接收所述第一中继节点的上一跳中继节点或第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内。
所述处理模块1320,用于第一中继节点转发所述第一信息。
在本申请的一个实施例中,该通信设备1300为第一中继节点时;即通信设备1300为与第一设备直接相连的第一中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述收发模块1310,用于接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内。
所述处理模块1320,用于生成第二信息所述第二信息为根据所述第一中继节点维护的发送与接收数据单元的编号映射关系和所述第一信息确定的。
所述收发模块1310,还用于发送第二信息。
在本申请的一个实施例中,该通信设备1300为第一中继节点时;即通信设备1300为与第一设备直接相连的第一中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述收发模块1310,用于接收所述第一设备发送的第一数据单元组。
所述处理模块1320,用于对所述第一数据单元组中的数据单元按照接收顺序添加编号。
可选地,编号为通信设备1300添加的,例如,该通信设备1300为第一中继节点,所述第一中继节点为与所述终端设备直接进行通信的中继节点。
可选地,通信设备1300的适配层具有排序的功能;和/或
所述通信设备1300的适配层具有所述编号的功能。
例如,第一中继节点的适配层具有排序的功能;和/或
第一中继节点的适配层具有所述编号的功能。
可选地,适配层位于无线链路控制RLC实体的上方。
可选地,适配层位于介质访问控制MAC实体的上方。
在本申请的一个实施例中,该通信设备1300为第一中继节点时;即通信设备1300为与第一设备直接相连的第一中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述收发模块1310,用于接收至少一个中继节点发送的具有编号的数据单元。
所述处理模块1320,用于根据所述编号对所述数据单元进行排序;
所述收发模块1310,还用于向所述第一设备按所述编号顺序发送第一数据单元组,所 述第一数据单元组为排序后的所述数据单元。
可选地,适配层具有排序的功能;或
无线路径控制协议RLC实体具有排序功能。
可选地,适配层位于无线链路控制RLC实体的上方。
可选地,适配层位于介质访问控制MAC实体的上方。
在本申请的一个实施例中,该通信设备1300为第一中继节点时;即通信设备1300为与第一设备直接相连的第一中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述处理模块1320,用于确定第一跳数信息,所述第一中继节点为与所述第一设备直接进行通信的中继节点。
所述收发模块1310,用于向所述第一设备发送第三消息,所述第三消息包括所述第一跳数信息;其中,所述第一跳数信息为所述至少一个中继节点的数量或所述至少一个中继节点的数量加一。
可选地,所述收发模块1310,用于通过广播向所述第一设备发送所述第三消息。
可选地,所述收发模块1310,用于通过专用信令向所述第一设备发送所述第三消息。
可选地,所述收发模块1310,用于将所述第一中继节点的上一跳中继节点广播的第二跳数信息加一,得到所述第一跳数信息。
在本申请的一个实施例中,该通信设备1300为第二中继节点时;即通信设备1300为与中继节点相连的第二中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述收发模块1310,用于接收与所述第二中继节连接的中继节点发送的数据单元,所述数据单元具有编号。
所述处理模块1320,用于对所述具有编号的所述数据单元进行排序。
可选地,所述编号为第一中继节点添加的,所述第一中继节点为与所述终端设备直接进行通信的中继节点。
可选地,所述第一中继节点的适配层具有所述排序;和/或
所述第一中继节点的适配层具有所述编号的功能。
可选地,通信设备1300的适配层具有排序的功能;或,
所述通信设备1300无线路径控制协议RLC实体具有所述排序功能。
例如,第二中继节点的适配层具有排序的功能;或,
所述第二中继节点的无线路径控制协议RLC实体具有所述排序功能。
可选地,适配层位于无线链路控制RLC实体的上方。
可选地,适配层位于介质访问控制MAC实体的上方。
在本申请的一个实施例中,该通信设备1300为第二中继节点时;即通信设备1300为与中继节点相连的第二中继节点。该通信设备1300包括收发模块1310和处理模块1320。
所述收发模块1310,用于接收与所述通信设备1300连接的中继节点发送的数据单元,所述数据单元具有编号。
所述处理模块1320,用于对所述具有编号的所述数据单元进行排序。
可选地,所述编号为所述第二设备的适配层添加的;或
所述编号为与所述通信设备1300直接通信的中继节点添加。
可选地,通信设备1300的适配层具有排序的功能;或,
无线路径控制协议RLC实体具有排序功能。
可选地,所述适配层位于无线链路控制RLC实体的上方。
可选地,所述适配层位于介质访问控制MAC实体的上方。
应理解,上述实施例的描述为在上行传输的场景下,第一设备可以为终端设备,第二设备可以为宿主基站。在下行传输的场景下,第一设备可以为宿主基站,第二设备可以为终端设备,本申请对此不作限定。
图19为本申请实施例提供的通信设备1400的示意性结构图。如图19所示,该通信设备1400包括:一个或多个处理器1401,一个或多个存储器1402,一个或多个收发器1403。该处理器1401用于控制收发器1403收发信号,该存储器1402用于存储计算机程序,该处理器1401用于从存储器1402中调用并运行该计算机程序,使得该通信设备执行本申请的传输方法实施例中由所述通信设备执行的相应流程和/或操作。
其中,该处理器1401可以用于执行通信设备1200中处理模块1220相应的操作和/或功能,该收发器1403可以用于执行通信设备1200中收发模块1210相应的操作和/或功能,为了简洁,此处不再赘述。
图20为本申请实施例提供的通信设备1500的示意性结构图。如图20所示,该通信设备1500包括:一个或多个处理器1501,一个或多个存储器1502,一个或多个收发器1503。该处理器1501用于控制收发器1503收发信号,该存储器1502用于存储计算机程序,该处理器1501用于从存储器1502中调用并运行该计算机程序,使得该通信设备执行本申请的传输方法实施例中由所述通信设备执行的相应流程和/或操作。
其中,该处理器1501可以用于执行通信设备1300中处理模块1320相应的操作和/或功能,该收发器1503可以用于执行通信设备1300中收发模块1310相应的操作和/或功能,为了简洁,此处不再赘述。
本申请实施例还提供了一种芯片系统,应用于通信设备中,该芯片系统包括:至少一个处理器、至少一个存储器和接口电路,所述接口电路负责所述芯片系统与外界的信息交互,所述至少一个存储器、所述接口电路和所述至少一个处理器通过线路互联,所述至少一个存储器中存储有指令;所述指令被所述至少一个处理器执行,以进行上述各个方面的所述的方法中所述通信设备的操作。
本申请实施例还提供了一种通信系统,包括:通信设备,和/或,网络设备;其中,所述通信设备为上述各个方面所述的通信设备。
本申请实施例还提供了一种计算机程序产品,应用于通信设备中,所述计算机程序产品包括一系列指令,当所述指令被运行时,以进行上述各个方面的所述的方法中所述通信设备的操作。
在本申请中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如,部件可以是但不限于,在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示,在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中,部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外,这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据,例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通 信。
应理解,本申请实施例中的方式、情况、类别以及实施例的划分仅是为了描述的方便,不应构成特别的限定,各种方式、类别、情况以及实施例中的特征在不矛盾的情况下可以相结合。
还应理解,在本申请的各实施例中,“第一”、“第二”、“第三”等仅是为了指代不同的对象,并不表示对指代的对象有其它限定。
另外,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
应理解,在本申请实施例中,“与A相应的B”表示B与A相关联,根据A可以确定B。但还应理解,根据A确定B并不意味着仅仅根据A确定B,还可以根据A和/或其它信息确定B。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其他任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本发明实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带)、光介质(例如数字视频光盘(digital video disc,DVD))、或者半导体介质(例如固态硬盘(solid state disk,SSD))等。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的 部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请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,本申请的技术方案本质上或者说对现有技术做出贡献的部分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)执行本申请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。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (126)

  1. 一种数据处理的方法,其特征在于,第一设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述方法包括:
    所述第一设备发送第一数据单元组,所述第一数据单元组在第一序列范围内;
    所述第一设备通过所述至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元;
    所述第一设备根据所述第一信息确定第二序列范围。
  2. 根据权利要求1所述的方法,其特征在于,所述第一设备根据所述第一信息确定第二序列范围,包括:
    若所述第一信息中包括所述第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
  3. 根据权利要求1或2所述的方法,其特征在于,所述第一设备通过至少一个中继节点接收第一信息,包括:
    所述第一设备接收通过所述至少一个中继节点转发的所述第二设备发送的第一消息,所述第一消息包括所述第一信息。
  4. 根据权利要求3所述的方法,其特征在于,所述第一消息为PDCP实体的状态报告;或,
    所述第一消息为无线路径控制协议RLC实体的状态报告。
  5. 根据权利要求1或2所述的方法,其特征在于,所述第一设备通过至少一个中继节点接收第一信息,包括:
    所述第一设备接收所述至少一个中继节点根据所述第二设备发送的第一消息得到的第二消息,所述第二消息包括所述第一信息。
  6. 根据权利要求5所述的方法,其特征在于,所述第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
  7. 根据权利要求6所述的方法,其特征在于,所述第二消息为RLC实体的状态报告。
  8. 一种通信方法,其特征在于,第一设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述方法包括:
    第一中继节点接收所述第一中继节点的上一跳中继节点或第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
    所述第一中继节点转发所述第一信息。
  9. 一种通信方法,其特征在于,第一设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述方法包括:
    第一中继节点接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
    所述第一中继节点发送第二信息,所述第二信息为根据所述第一中继节点维护的发送与接收数据单元的编号映射关系和所述第一信息确定的。
  10. 一种数据处理的方法,其特征在于,第一设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述方法包括:
    第一中继节点接收所述第一设备发送的第一数据单元组;
    所述第一中继节点对所述第一数据单元组中的数据单元添加编号。
  11. 根据权利要求10所述的方法,其特征在于,所述第一中继节点对所述第一数据单元组中的数据单元添加编号,包括:
    所述第一中继节点对所述第一数据单元组中的数据单元按照接收顺序添加编号。
  12. 根据权利要求10或11所述的方法,其特征在于,所述第一中继节点对所述第一数据单元组中的数据单元添加编号之前,所述方法还包括:
    所述第一中继节点对所述第一数据单元组中的数据单元进行排序。
  13. 一种数据处理的方法,其特征在于,第一设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具PDCP实体,所述方法包括:
    第二中继节点接收与所述第二中继节连接的中继节点发送的数据单元,所述数据单元具有编号;
    所述第二中继节点对所述具有编号的所述数据单元进行排序。
  14. 根据权利要求13所述的方法,其特征在于,所述编号为第一中继节点添加的,所述第一中继节点为与第一设备直接通信的中继节点;或
    所述编号为与所述第二中继节点直接通信的中继节点添加的。
  15. 根据权利要求10至12或14中任一种所述的方法,其特征在于,所述第一中继节点的适配层具有排序的功能;或
    所述第一中继节点的无线路径控制协议RLC实体具有排序功能;和/或
    所述第一中继节点的适配层具有所述添加编号的功能。
  16. 根据权利要求13或14所述的方法,其特征在于,所述第二中继节点的适配层具有排序的功能;或,
    所述第二中继节点的无线路径控制协议RLC实体具有排序功能。
  17. 根据权利要求15或16所述的方法,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  18. 根据权利要求15或16所述的方法,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  19. 一种通信设备,其特征在于,所述通信设备包括:至少一个处理器和通信接口,所述通信接口用于所述通信设备与其他通信设备进行信息交互,当程序指令在所述至少一个处理器中执行时,使得所述通信设备实现根据权利要求1-18中任一所述的方法中在所述通信设备上的功能。
  20. 一种计算机程序存储介质,其特征在于,所述计算机程序存储介质具有程序指令,当所述程序指令被直接或者间接执行时,使得根据权利要求1-18中任一所述的方法中在所述通信设备上的功能得以实现。
  21. 一种通信设备,其特征在于,所述通信设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
    收发模块,用于发送第一数据单元组,所述第一数据单元组在第一序列范围内;
    所述收发模块,还用于通过所述至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元;
    处理模块,用于根据所述第一信息确定第二序列范围。
  22. 根据权利要求21所述的通信设备,其特征在于,所述处理模块还用于:
    若所述第一信息中包括所述第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
  23. 根据权利要求21或22所述的通信设备,其特征在于,所述收发模块还用于:
    接收通过所述至少一个中继节点转发的所述第二设备发送的第一消息,所述第一消息包括所述第一信息。
  24. 根据权利要求23所述的通信设备,其特征在于,所述第一消息为PDCP实体的状态报告;或,
    所述第一消息为无线路径控制协议RLC实体的状态报告。
  25. 根据权利要求21或22所述的通信设备,其特征在于,所述收发模块还用于:接收所述至少一个中继节点根据所述第二设备发送的第一消息得到的第二消息,所述第二消息包括所述第一信息。
  26. 根据权利要求25所述的通信设备,其特征在于,所述第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
  27. 根据权利要求26所述的通信设备,其特征在于,所述第二消息为RLC实体的状态报告。
  28. [根据细则91更正 25.06.2019] 
    [已删除]
  29. [根据细则91更正 25.06.2019] 
    [已删除]
  30. [根据细则91更正 25.06.2019] 
    [已删除]
  31. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包 括:
    收发模块,用于接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
    处理模块,用于生成第二消息,所述第二信息为根据所述通信设备维护的发送与接收数据单元的编号映射关系和所述第一信息确定的。
    收发模块,还用于发送第二信息。
  32. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发模块,用于接收所述第一设备发送的第一数据单元组;
    处理模块,用于对所述第一数据单元组中的数据单元添加编号。
  33. 根据权利要求29所述的通信设备,其特征在于,所述处理模块还用于对所述第一数据单元组中的数据单元按照接收顺序添加编号。
  34. 根据权利要求30所述的通信设备,其特征在于,所述处理模块还用于对所述第一数据单元组中的数据单元进行排序。
  35. 根据权利要求30或31所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或
    所述通信设备的无线路径控制协议RLC实体具有排序功能;和/或
    所述通信设备的适配层具有所述添加编号的功能。
  36. 根据权利要求32所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  37. 根据权利要求32所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  38. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
    收发模块,用于接收与所述通信设备连接的中继节点发送的数据单元,所述数据单元具有编号;
    处理模块,用于对所述具有编号的所述数据单元进行排序。
  39. 根据权利要求35所述的通信设备,其特征在于,所述编号为第一中继节点添加的,所述第一中继节点为与第一设备直接通信的中继节点;或
    所述编号为与所述通信设备直接通信的中继节点添加的。
  40. 根据权利要求36所述的通信设备,其特征在于,所述第一中继节点的适配层具有排序的功能;或
    所述第一中继节点的无线路径控制协议RLC实体具有排序功能;和/或
    所述第一中继节点的适配层具有所述添加编号的功能。
  41. 根据权利要求36所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或,
    所述通信设备的无线路径控制协议RLC实体具有排序功能。
  42. 根据权利要求38所述的通信设备,其特征在于,所述适配层位于无线链路控制 RLC实体的上方。
  43. 根据权利要求37或38所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  44. 一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发模块,用于接收至少一个中继节点发送的具有编号的数据单元;
    处理模块,用于根据所述编号对所述数据单元进行排序;
    收发模块,还用于向所述第一设备按所述编号顺序发送第一数据单元组,所述第一数据单元组为排序后的所述数据单元。
  45. 根据权利要求41所述的通信设备,其特征在于,所述编号为所述第二设备的适配层添加的。
  46. 根据权利要求41所述的通信设备,其特征在于,通信设备的适配层具有排序的功能;或
    所述通信设备的无线路径控制协议RLC实体具有排序功能。
  47. 根据权利要求43所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  48. 根据权利要求43所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  49. 一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发模块,用于接收与所述通信设备连接的中继节点发送的数据单元,所述数据单元具有编号;
    处理模块,用于对所述具有编号的数据单元进行排序。
  50. 根据权利要求46所述的通信设备,其特征在于,所述编号为所述第二设备的适配层添加的;或
    所述编号为与第二中继节点直接通信的中继节点添加。
  51. 根据权利要求46所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或,
    所述通信设备的无线路径控制协议RLC实体具有排序功能。
  52. 根据权利要求48所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  53. 根据权利要求48所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  54. 一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发模块,用于接收第三消息,所述第三消息包括所述第一设备与所述第二设备进行通信的跳数信息;
    处理模块,用于根据所述跳数信息确定第一序列范围,所述第一序列范围用于指示所述第一设备分配的序列号范围。
  55. 根据权利要求51所述的通信设备,其特征在于,所述第一序列范围小于或等于 分配序列号的数量,所述分配序列号的数量为序列号空间/跳数/2。
  56. 根据权利要求52所述的通信设备,其特征在于,所述第三消息为广播的消息。
  57. 根据权利要求52所述的通信设备,其特征在于,所述第三消息为通过专用信令发送的消息。
  58. 根据权利要求51-53任一项所述的通信设备,其特征在于,所述第三消息为所述第二设备发送的。
  59. 根据权利要求51-53任一项所述的通信设备,其特征在于,所述第三消息为所述至少一个中继节点发送的。
  60. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    处理模块,用于确定第一跳数信息,所述通信模块为与所述第一设备直接进行通信的中继节点;
    收发模块,用于向所述第一设备发送第三消息,所述第三消息包括所述第一跳数信息;
    其中,所述第一跳数信息为所述至少一个通信设备的数量或所述至少一个通信设备的数量加一。
  61. 根据权利要求57所述的通信设备,其特征在于,所述收发模块还用于:
    通过广播向所述第一设备发送所述第三消息。
  62. 根据权利要求57所述的通信设备,其特征在于,所述收发模块还用于:
    通过专用信令向所述第一设备发送所述第三消息。
  63. 根据权利要求59所述的通信设备,其特征在于,所述处理模块还用于:
    将所述通信设备的上一跳中继节点广播的第二跳数信息加一,得到所述第一跳数信息。
  64. 一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发模块,用于通过至少一个中继节点接收所述第二设备发送的第一数据单元,所第一数据单元携带计数值;
    处理模块,用于根据所述第一数据单元携带的计数值处理所述第一数据单元。
  65. 根据权利要求61所述的通信设备,其特征在于,所述处理模块还用于:
    若所述第一数据单元的计数值大于当前已递交的最后一个数据单元的计数值的下一个计数值,则存储所述第一数据单元;或
    若所述第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交所述第一数据单元至分组数据汇聚协议PDCP实体的上层;或
    若所述第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃所述第一数据单元。
  66. 根据权利要求62所述的通信设备,其特征在于,所述通信设备还包括:
    存储模块,用于存储所述第一数据单元,按照所述第一数据单元的计数值的顺序递交所述第一数据单元至PDCP实体的上层。
  67. 根据权利要求62或63所述的通信设备,其特征在于,所述第一数据单元在所述第一序列范围内。
  68. 根据权利要求64所述的通信设备,其特征在于,所述第一序列范围指示所述第 二设备允许分配的计数值范围,或所述第二设备发送所述第一数据单元时允许分配的计数值范围。
  69. 根据权利要求64或65所述的通信设备,其特征在于,所述第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
  70. 一种通信设备,第一设备通过至少一个中继节点与所述通信设备进行通信,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发模块,通过至少一个中继节点向所述第一设备发送的第一数据单元,所述第一数据单元携带计数值;
    所述第一数据单元属于第一序列范围,所述第一序列范围用于指示所述第二设备允许分配的计数值范围。
  71. 根据权利要求67所述的通信设备,其特征在于,所述第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
  72. 一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,其中,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于发送第一数据单元组,所述第一数据单元组在第一序列范围内;
    所述收发器,还用于通过所述至少一个中继节点接收第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的所述第一数据单元组中的数据单元;
    处理器,用于根据所述第一信息确定第二序列范围。
  73. 根据权利要求69所述的通信设备,其特征在于,所述处理器还用于:
    若所述第一信息中包括所述第一序列范围内从首个数据单元开始的连续的N个数据单元接收成功的信息时,将所述第一序列范围顺延N个序列得到所述第二序列范围,其中,N为正整数。
  74. 根据权利要求70所述的通信设备,其特征在于,所述收发器还用于:
    接收通过所述至少一个中继节点转发的所述第二设备发送的第一消息,所述第一消息包括所述第一信息。
  75. 根据权利要求71所述的通信设备,其特征在于,所述第一消息为PDCP实体的状态报告;或,
    所述第一消息为无线路径控制协议RLC实体的状态报告。
  76. 根据权利要求69或70所述的通信设备,其特征在于,,所述收发器还用于:接收所述至少一个中继节点根据所述第二设备发送的第一消息得到的第二消息,所述第二消息包括所述第一信息。
  77. 根据权利要求73所述的通信设备,其特征在于,所述第二消息为所述至少一个中继节点根据所述第一消息和所述至少一个中继节点维护的发送与接收数据单元的编号映射关系确定的。
  78. 根据权利要求74所述的通信设备,其特征在于,所述第二消息为RLC实体的状态报告。
  79. 根据权利要求72或73所述的通信设备,其特征在于,所述第一消息为周期性发送的消息。
  80. 根据权利要求71所述的通信设备,其特征在于,所述收发器还用于向所述第二 设备发送查询请求。
  81. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于接收第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
    处理器,用于生成第二消息,所述第二信息为根据所述通信设备维护的发送与接收数据单元的编号映射关系和所述第一信息确定的。
    收发器,还用于发送第二信息。
  82. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于接收所述第一设备发送的第一数据单元组;
    处理器,用于对所述第一数据单元组中的数据单元添加编号。
  83. 根据权利要求79所述的通信设备,其特征在于,所述处理器还用于对所述第一数据单元组中的数据单元按照接收顺序添加编号。
  84. 根据权利要求80所述的通信设备,其特征在于,,所述处理器还用于对所述第一数据单元组中的数据单元进行排序。
  85. 根据权利要求80或81所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或
    所述通信设备的无线路径控制协议RLC实体具有排序功能;和/或
    所述通信设备的适配层具有所述添加编号的功能。
  86. 根据权利要求82所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  87. 根据权利要求82所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  88. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于接收与所述通信设备连接的中继节点发送的数据单元,所述数据单元具有编号;
    处理器,用于对所述具有编号的所述数据单元进行排序。
  89. 根据权利要求85所述的通信设备,其特征在于,所述编号为第一中继节点添加的,所述第一中继节点为与第一设备直接通信的中继节点;或
    所述编号为与所述通信设备直接通信的中继节点添加的。
  90. 根据权利要求86所述的通信设备,其特征在于,所述第一中继节点的适配层具有排序的功能;或
    所述第一中继节点的无线路径控制协议RLC实体具有排序功能;和/或
    所述第一中继节点的适配层具有所述添加编号的功能。
  91. 根据权利要求86所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或,
    所述通信设备的无线路径控制协议RLC实体具有排序功能。
  92. 根据权利要求87或88所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  93. 根据权利要求87或88所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  94. 一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于接收第三消息,所述第三消息包括所述第一设备与所述第二设备进行通信的跳数信息;
    处理器,用于根据所述跳数信息确定第一序列范围,所述第一序列范围用于指示所述第一设备分配的序列号范围。
  95. 根据权利要求91所述的通信设备,其特征在于,所述第一序列范围小于或等于分配序列号的数量,所述分配序列号的数量为序列号空间/跳数/2。
  96. 根据权利要求91或92所述的通信设备,其特征在于,在第二种可能的实现方式中,所述第三消息为广播的消息。
  97. 根据权利要求91或92所述的通信设备,其特征在于,,所述第三消息为通过专用信令发送的消息。
  98. 根据权利要求92-94任一项所述的通信设备,其特征在于,所述第三消息为所述第二设备发送的。
  99. 根据权利要求92-94任一项所述的通信设备,其特征在于,在第五种可能的实现方式中,所述第三消息为所述至少一个中继节点发送的。
  100. 一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于接收至少一个中继节点发送的具有编号的数据单元;
    处理器,用于根据所述编号对所述数据单元进行排序;
    收发器,还用于向所述第一设备按所述编号顺序发送第一数据单元组,所述第一数据单元组为排序后的所述数据单元。
  101. 根据权利要求97所述的通信设备,其特征在于,所述编号为所述第二设备的适配层添加的。
  102. 根据权利要求97所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或
    所述通信设备的无线路径控制协议RLC实体具有排序功能。
  103. 根据权利要求99所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  104. 根据权利要求99所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  105. 一种通信设备,其中,第一设备通过至少一个通信设备与第二设备进行通信, 所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述方通信设备包括:
    收发器,用于接收与所述通信设备连接的中继节点发送的数据单元,所述数据单元具有编号;
    处理器,用于对所述具有编号的数据单元进行排序。
  106. 根据权利要求102所述的通信设备,其特征在于,所述编号为所述第二设备的适配层添加的;或
    所述编号为与第二中继节点直接通信的中继节点添加。
  107. 根据权利要求103所述的通信设备,其特征在于,所述通信设备的适配层具有排序的功能;或,
    所述通信设备的无线路径控制协议RLC实体具有排序功能。
  108. 根据权利要求104所述的通信设备,其特征在于,所述适配层位于无线链路控制RLC实体的上方。
  109. 根据权利要求104所述的通信设备,其特征在于,所述适配层位于介质访问控制MAC实体的上方。
  110. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    处理模器,用于确定第一跳数信息,所述通信设备为与所述第一设备直接进行通信的中继节点;
    收发模器,用于向所述第一设备发送第三消息,所述第三消息包括所述第一跳数信息;
    其中,所述第一跳数信息为所述至少一个通信设备的数量或所述至少一个通信设备的数量加一。
  111. 根据权利要求107所述的通信设备,其特征在于,收发器还用于:
    通过广播向所述第一设备发送所述第三消息。
  112. 根据权利要求107所述的通信设备,其特征在于,收发器还用于:
    通过专用信令向所述第一设备发送所述第三消息。
  113. 根据权利要求107所述的通信设备,其特征在于,处理器还用于:
    将所述通信设备的上一跳中继节点广播的第二跳数信息加一,得到所述第一跳数信息。
  114. 一种通信设备,所述通信设备通过至少一个中继节点与第二设备进行通信,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,用于通过至少一个中继节点接收所述第二设备发送的第一数据单元,所述第一数据单元携带计数值;
    处理器,用于根据所述第一数据单元携带的计数值处理所述第一数据单元。
    在本申请实施例的技术方案中,发送端存在发送窗口的最大边沿,接收端不存在接收窗口的最大边沿,通过发送携带计数值的数据单元,从而对数据单元进行处理,从而避免数据单元超出接收端的接收窗口而产生的丢包问题,提高了数据传输的准确性和数据传输的效率。
  115. 根据权利要求111所述的通信设备,其特征在于,处理器还用于:
    若所述第一数据单元的计数值大于当前已递交的最后一个数据单元的计数值的下一 个计数值,则存储所述第一数据单元;或
    若所述第一数据单元的计数值等于当前已递交的最后一个数据单元的计数值的下一个计数值,则递交所述第一数据单元至分组数据汇聚协议PDCP实体的上层;或
    若所述第一数据单元的计数值小于当前已递交的最后一个数据单元的计数值的下一个计数值,则丢弃所述第一数据单元。
  116. 根据权利要求112所述的通信设备,其特征在于,所述通信设备还包括:
    存储器,用于存储所述第一数据单元,按照所述第一数据单元的计数值的顺序递交所述第一数据单元至PDCP实体的上层。
  117. 根据权利要求112或113所述的通信设备,其特征在于,所述第一数据单元在所述第一序列范围内。
  118. 根据权利要求114所述的通信设备,其特征在于,所述第一序列范围指示所述第二设备允许分配的计数值范围,或所述第二设备发送所述第一数据单元时允许分配的计数值范围。
  119. 根据权利要求114或115所述的通信设备,其特征在于,所述第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
  120. 一种通信设备,第一设备通过至少一个中继节点与所述通信设备进行通信,所述至少一个中继节点不具有分组数据汇聚协议PDCP实体,其特征在于,所述通信设备包括:
    收发器,通过至少一个中继节点向所述第一设备发送的第一数据单元,所述第一数据单元携带计数值;
    所述第一数据单元属于第一序列范围,所述第一序列范围用于指示所述第二设备允许分配的计数值范围。
  121. 根据权利要求117所述的通信设备,其特征在于,所述第一序列范围的大小为一半的序列号空间或者小于一半的序列号空间。
  122. 一种通信设备,第一设备通过至少一个通信设备与第二设备进行通信,其中,所述至少一个通信设备不具有分组数据汇聚协议PDCP实体,所述通信设备包括:
    收发器,用于接收所述第一中继节点的上一跳中继节点或第二设备发送的第一信息,所述第一信息用于指示所述第二设备已收到和/或未收到的第一数据单元组中的数据单元,所述第一数据单元组在第一序列范围内;
    所述收发器,还用于转发所述第一信息。
  123. 一种芯片系统,应用于通信设备中,其特征在于,所述芯片系统包括:至少一个处理器、至少一个存储器和接口电路,所述接口电路负责所述芯片系统与外界的信息交互,所述至少一个存储器、所述接口电路和所述至少一个处理器通过线路互联,所述至少一个存储器中存储有指令;所述指令被所述至少一个处理器执行,以进行上述各个方面的所述的方法中所述通信设备的操作。
  124. 一种通信系统,其特征在于,包括:通信设备;其中,所述通信设备为上述各个方面所述的通信设备。
  125. 一种计算机程序产品,应用于通信设备中,其特征在于,所述计算机程序产品包括一系列指令,当所述指令被运行时,以进行上述各个方面的所述的方法中所述通信设备的操作。
  126. 一种计算机可读存储介质,所述计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机执行权利要求1-18所述的方法。
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