WO2013163895A1 - Procédé et système de transmission de paquet de données, équipement utilisateur et enb - Google Patents

Procédé et système de transmission de paquet de données, équipement utilisateur et enb Download PDF

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Publication number
WO2013163895A1
WO2013163895A1 PCT/CN2013/070205 CN2013070205W WO2013163895A1 WO 2013163895 A1 WO2013163895 A1 WO 2013163895A1 CN 2013070205 W CN2013070205 W CN 2013070205W WO 2013163895 A1 WO2013163895 A1 WO 2013163895A1
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Prior art keywords
binding
message
data packet
user equipment
base station
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PCT/CN2013/070205
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English (en)
Chinese (zh)
Inventor
常俊仁
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华为技术有限公司
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Publication of WO2013163895A1 publication Critical patent/WO2013163895A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a data packet transmission method and system, a user equipment, and a base station. Background technique
  • LTE Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • TTI transmission time interval
  • VoIP Voice over Internet Protocol
  • the process is usually formed by 4 TTI bindings, and each TTI in the process corresponds to a subframe in the LTE system;
  • the User Equipment (UE) transmits VoIP packets to the base station (eNodeB; eNB) within the four consecutive TTIs, and can use different redundancy versions (Redundancy Version; RV) of the VoIP packets in four TTIs.
  • the main feature is that the UE does not wait for Hybrid Automatic Repeat Request (HQQ) feedback during the transmission of 4 TTIs; the HARQ feedback is not received until the last TTI transmission is completed.
  • HQQ Hybrid Automatic Repeat Request
  • one VoIP packet will be continuously transmitted in 4 TTIs, and the transmission is always transmitted regardless of whether the transmission of the first 3 TTIs is successful, and the UE receives the HARQ returned by the eNB until the transmission of the last TTI is completed. Feedback to determine if the eNB has received the correct VoIP packet.
  • the TTI binding technology of the prior art is used, and the TTI included in each bound process is limited, so that the error rate of the eNB receiving the data packet is relatively high, so it is urgent to provide an efficiency.
  • a higher transmission method to reduce the packet error rate of the UE transmitting data packets to the eNB Enhance uplink coverage.
  • Embodiments of the present invention provide a data packet transmission method and system, a user equipment, and a base station, which are used to improve an efficient data packet transmission method, and can further enhance uplink coverage.
  • an embodiment of the present invention provides a data packet transmission method, including:
  • the embodiment of the present invention further provides a data packet transmission method, including: generating a process configuration message for a first process of a user equipment;
  • the embodiment of the present invention further provides a user equipment, including:
  • a receiving module configured to receive a process configuration message of the first process sent by the base station
  • a binding module configured to bind the first process and the at least one second process to the process according to the process configuration message
  • a sending module configured to transmit the same data packet on the first process and the at least one second process.
  • an embodiment of the present invention further provides a base station, including:
  • a generating module configured to generate a process configuration message for the first process of the user equipment
  • a sending module configured to send the process configuration message to the user equipment, to indicate that the user equipment performs process binding on the first process and the at least one second process according to the process configuration message;
  • a receiving module configured to receive the same data packet that the user equipment transmits on the first process and the at least one second process respectively.
  • an embodiment of the present invention further provides a data packet transmission system, including the foregoing User equipment and base station as described above.
  • the data packet transmission method and system, the user equipment, and the base station in the embodiment of the present invention generate a process configuration message by using the base station as the first process of the user equipment, and send the process configuration message to the user equipment, and the user equipment configures the message according to the process. Binding the first process and the at least one second process to the process; and transmitting the same data packet on the first process and the at least one second process.
  • the foregoing technical solution of the embodiment of the present invention can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet. , can further enhance the uplink coverage.
  • FIG. 1 is a flowchart of a data packet transmission method according to an embodiment of the present invention.
  • FIG. 2 is a flowchart of a data packet transmission method according to another embodiment of the present invention.
  • FIG. 3 is a schematic diagram of data transmission in an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a UE according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of an eNB according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of an eNB according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a data packet transmission system according to an embodiment of the present invention. detailed description
  • FIG. 1 is a flowchart of a data packet transmission method according to an embodiment of the present invention.
  • the sequel to the data packet transmission method in this embodiment is a UE.
  • the data packet transmission method in this embodiment may include the following steps:
  • the UE receives a process configuration message of the first process sent by the eNB.
  • the process configuration message in this embodiment is generated by the eNB as the first process of the UE.
  • the UE binds the first process to the at least one second process according to the process configuration message.
  • the UE transmits the same data packet on the first process and the at least one second process.
  • FDD Frequency Division Duplex
  • FDD Time Division Duplex
  • the eNB configures the first process to generate a process configuration message for the UE, and sends the process configuration message to the UE, and the UE performs the eNB first process and the eNB at least one second according to the process configuration message.
  • the process performs process binding; and transmits the same data packet on the first process of the eNB and at least one second process of the eNB.
  • the process of transmitting the same data packet can be increased, that is, the TTI process is further bound, and the binding can be similar to the process of binding the TTI to form a process.
  • the eNB receives the error block rate of reducing the uplink data packet, especially in the edge region of the LTE system, and the uplink coverage can be further enhanced by reducing the packet error rate of the uplink data packet.
  • the process configuration message may specifically include the following three situations:
  • the process configuration message may specifically include an identifier of at least one second process that is bound to the process by the first process.
  • the identifier of the second process in this embodiment may be the ID of the second process, or may be the subframe identifier corresponding to the second process, or may be other symbols that can uniquely identify the second process.
  • the corresponding step 101 the UE binds the process to the first process and the at least one second process according to the process configuration message", which may include: the identifier of the at least one second process bound by the UE according to the process with the first process. , the first process and at least one second process are processed Bind.
  • the eNB has determined at least one second process bound to the first process.
  • the process configuration message may specifically include the number of at least one second process bound to the process of the first process.
  • the UE binds the first process to the at least one second process according to the process configuration message, and the method may include: the number of the at least one second process that the UE binds to the process by the first process, Selecting at least one second process; and binding the first process to the selected at least one second process.
  • the eNB does not select the second process bound to the first process, and only determines the number of second processes bound to the first process. And the UE selects the second process according to the second number.
  • the process configuration message may include indication information for indicating process binding to the first process; that is, the indication message is only used to indicate the UE, and the first process needs to perform process binding, specifically by The UE selects the second process and its number bound to the first process.
  • the corresponding step 101 the UE binds the process to the first process and the at least one second process according to the process configuration message", which may include: the UE selects according to the indication information used to indicate that the process is bound to the first process. At least one second process; and binding the first process to the selected at least one second process.
  • the method may further include: the UE feeding back the identifier of the selected at least one second process to the eNB, to notify The eNB first process and at least one second process perform process binding.
  • the first process is a binding process
  • the second process is a binding process or a single process.
  • the binding process includes four TTIs. The description of the binding process in the prior art is not described here. Only one TTI is included in a single process.
  • the ⁇ in the binding process is not limited to four, and may be any other than 4.
  • the UE transmits the same data packet on the first process and the at least one second process.
  • the four ⁇ s on the first process can be used to transmit different RV versions of the data packet, and the RV (redundant version) of the data packet transmitted on at least one second process can be
  • the RV version transmitted in a certain TTI of the first process is the same, and the RV version transmitted in each of the first processes may also be transmitted.
  • the first process is a binding process and the second process is a single process
  • a single process can be set.
  • the maximum number of retransmissions is less than the maximum number of retransmissions of the binding process. For example, you can set the maximum number of retransmissions of the binding process to 3, and set the maximum number of retransmissions for a single process to 6 times.
  • the maximum number of retransmissions of each second process may be the same or different.
  • the eNB may indicate, in the first process binding configuration message, a maximum number of transmissions or a maximum number of retransmissions of the second process that is bound to the process by the first process.
  • step 100 “the UE receives the process configuration message of the first process sent by the eNB”, step 102 “is in the first process and the at least one second process. Before you can transfer the same packet, you can also include the following steps:
  • the UE stores a process configuration message
  • the UE receives the process binding activation message sent by the eNB.
  • the process binding activation message may specifically be media access control (Media Access).
  • Control MAC
  • CE Control Element
  • PDCCH Physical Downlink Control Channel
  • the subset information of the at least one second process may be included, and the corresponding step 102: “the UE transmits the same data packet on the first process and the at least one second process”, Specifically, the UE may transmit the same data packet on at least one second process in the subset of the at least one second process indicated in the first process and the process binding activation message.
  • step 101 there is no order limitation between step 101 and step (1) and step (2) above.
  • the method may further include:
  • the UE freezes the process binding relationship of the first process and the at least one second process in response to the process binding deactivation message.
  • the freezing of this embodiment can be understood as the meaning of temporary suspension.
  • the UE is frozen. After the process binding relationship between the first process and the at least one second process is terminated, the same data can be temporarily stopped on the first process and the at least one second process.
  • the process binding activation message sent by the eNB is received again, the UE activates the process binding relationship of the first process and the at least one second process again, and transmits the same data on the first process and the at least one second process.
  • the UE receives the process binding deactivation sent by the eNB.
  • the message, the deactivation message can directly activate all the second processes in the subset of the at least one second process described in the activation message, and the indication of each second process does not need to be explicitly indicated in the deactivation message.
  • the information of the one or more second processes in the subset of the at least one second process in the process binding activation message may be included, that is, the at least one second of the first process and the process binding deactivation message is frozen.
  • One or more second process binding relationships in the subset of processes and temporarily stopping on the one or more second processes in the subset of the at least one second process in the first process and the process binding deactivation message
  • the same data packet is transmitted until the corresponding process binding activation message is received again.
  • the UE may receive the process configuration message sent by the eNB in advance, but does not immediately implement the same data packet transmission on the first process and the at least one second process, and is activated after receiving the process binding.
  • the same data packet is transmitted on the first process and the at least one second process.
  • the process binding deactivation message is received, the process binding relationship between the first process and the at least one second process may be frozen.
  • the process of implementing the technology is more convenient, so that the eNB can quickly adjust the number of the second process according to the actual transmission condition of the UE, and can flexibly take care of the performance of other services while ensuring the packet error rate of the VoIP data.
  • step 102 is in the first process and at least one
  • the timing relationship of the HARQ of the first process and the timing relationship of the HARQ of the at least one second process are required, and the first process and the at least one second process are not bound by the process.
  • the timing relationship of the HARQ of the process and the timing relationship of the HARQ of at least one second process remain the same, respectively.
  • the timing relationship of the HARQ of the first process is required to remain the same as the timing relationship of the HARQ of the first process when the first process and the at least one second process are not bound by the process; and for each second of the at least one second process Process, the timing relationship of the HARQ of the second process with the first process and at least one second The timing relationship of the HARQ of the second process remains the same when the process is not bound by the process.
  • the timing relationship in the embodiment of the present invention can also be understood as a fixed timing relationship.
  • the timing relationship is that the UE first transmits at the n time, and then receives the HARQ of the eNB at the time n+4.
  • Feedback if the UE does not receive the HARQ feedback of the eNB or the HARQ feedback is NACK, that is, the eNB does not correctly receive the data packet sent by the UE at the time n, the UE retransmits the data packet sent at the time n at the time n+8.
  • the UE If the UE receives the HARQ feedback of the eNB as ACK feedback at time n+4, that is, the eNB correctly receives the data packet sent by the UE at time n, the UE performs new data packet transmission at time n+8.
  • the timing relationship is:
  • the UE continuously performs initial transmission of four identical data packets (or different RV versions of the same data packet) at times n to n+3,
  • the UE receives the HARQ feedback of the eNB at time n+7; if the UE does not receive the HARQ feedback of the eNB or the HARQ feedback is NACK, it means that the eNB does not correctly receive the retransmission of the UE to send different RV versions of the same data packet at time n) .
  • the UE receives the HARQ feedback of the eNB as ACK feedback at time n+7, that is, the eNB correctly receives one or more of the data packets continuously sent by the UE at the time n to n+3, the UE is at n+16 to n.
  • the transmission of the next new data packet is continuously performed at +19. This is to introduce the timing relationship by including four TTIs in the binding process. For other TTIs in the binding process, you can also use this reasoning.
  • the method may further include the following steps:
  • the UE receives the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process respectively sent by the eNB, where the HARQ feedback message of the first process is the receiving result of the data packet sent by the eNB according to the eNB.
  • the HARQ feedback message of each second process in the at least one second process is performed by the eNB according to the receiving result of the data packet sent on the second process; when the first process is a binding process, corresponding to The 4 TTIs in the first process need to feed back the HARQ feedback message of the data packets transmitted on the 4 TTIs on the subframe corresponding to the feedback.
  • the eNB when the eNB receives a data packet on a TTI in a certain process and successfully decodes the data packet, the eNB feeds back to the UE that the data packet is successfully received in the process, for example, the ACK message may be fed back, when the eNB does not receive the ACK message. All TTI packets in the process, Or, when receiving the data packet on some TTIs in the process, but failing to successfully decode the received data packet, the eNB feeds back to the UE that the receiving data on the TTI fails, for example, may feed back a NACK message.
  • the method may further include the following steps: (B) determining, by the UE, whether the eNB receives the data packet in the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process Confirmation message (such as ACK message); when included, execute (C); otherwise execute (D);
  • the eNB considers that the eNB receives the data successfully, and may continue to perform step (C). Otherwise, the ACK message is not included in the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process, that is, the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process are both NACK messages. At this time, it is considered that the eNB receives the data unsuccessfully, and the step (D) can be continued at this time.
  • the UE starts transmitting a new data packet on the last transmission opportunity of the first process and the at least one second process; after receiving the successful acknowledgement message, the last transmission opportunity may be the first process and at least one The earliest transmission opportunity among the multiple transmission opportunities existing in the second process;
  • the UE continues to retransmit the same data packet on the first process and the at least one second process until the number of retransmissions reaches the maximum number of retransmissions and ends.
  • the process configuration message sent by the UE to the eNB may be carried in a Radio Resource Control (RRC) reconfiguration message sent by the eNB to the UE.
  • RRC Radio Resource Control
  • the technical solution of the foregoing embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • the technical solution of the foregoing embodiment does not change the timing relationship of each process in the prior art, and the protocol modification is minimal, and the at least one second process can be flexibly configured for the first process according to different conditions of the UE.
  • Process binding, and with existing related technologies Very good compatibility, the implementation is very simple.
  • FIG. 2 is a flowchart of a data packet transmission method according to another embodiment of the present invention.
  • the execution body of the data packet transmission method of this embodiment is an eNB.
  • the data packet transmission method in this embodiment may specifically include the following steps:
  • the eNB generates a process configuration message for the first process of the UE.
  • the eNB sends a process configuration message to the UE, to indicate that the UE binds the process to the first process and the at least one second process according to the process configuration message.
  • the eNB receives the same data packet that the UE transmits on the first process and the at least one second process, respectively.
  • the eNB has the operation of receiving the data packet, but whether the data packet is received or not is not limited herein.
  • the embodiment of the present invention is different from the foregoing embodiment shown in FIG. 1 in that: the foregoing embodiment shown in FIG. 1 describes the technical solution of the present invention on the UE side, and the present embodiment describes the technical solution of the present invention on the eNB side.
  • the foregoing embodiment shown in FIG. 1 describes the technical solution of the present invention on the UE side
  • the present embodiment describes the technical solution of the present invention on the eNB side.
  • the process configuration message is generated by the eNB as the first process of the UE, and the process configuration message is sent to the UE, and the eNB first process and the eNB are at least one second according to the process configuration message.
  • the process performs process binding; and receives the same data packet that the UE transmits on the first process and the at least one second process respectively.
  • the technical solution of the embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • the process configuration message may specifically include the following three cases.
  • the process configuration message may specifically include an identifier of at least one second process that is bound to the process by the first process.
  • the identifier of the second process in this embodiment may be the ID of the second process, or may be the subframe identifier corresponding to the second process, or may be other symbols that can uniquely identify the second process.
  • the method may further include: configuring, by the eNB, at least one second process for the first process of the UE. In this technical solution, the eNB has determined at least one second process bound to the first process.
  • the process configuration message may specifically include the number of at least one second process bound to the process of the first process.
  • the method may further include: the eNB configuring, for the first process of the UE, the number of the at least one second process that is bound to the process of the first process.
  • the eNB does not select the second process bound to the first process, and only determines the number of at least one second process.
  • the UE selects at least one second process according to the number of at least one second process.
  • the process configuration message may include indication information for indicating process binding to the first process; that is, the indication message is only used to indicate the UE, and the first process needs to perform process binding, specifically by The UE selects the second process and its number bound to the first process.
  • the method may further include: the eNB receiving the UE according to the process And configuring an identifier of the at least one second process selected by the message to determine that the first process and the at least one second process are process bound.
  • the first process is a binding process
  • the second process is a binding process or a single process.
  • the binding process includes four TTIs. Reference is made to the description of the binding process in the prior art, and details are not described herein again. Only one TTI is included in a single process.
  • the method may further include: the eNB sending a process binding activation message to the UE, to indicate that the UE is in accordance with the process.
  • the configuration message activates the process binding of the first process and the at least one second process, and transmits the same data packet on the first process and the at least one second process.
  • the process binding activation message may include at least one subset information of the second process to indicate at least one of the subset of the at least one second process indicated by the UE in the first process and the process binding activation message.
  • the same packet is transmitted on the second process.
  • the eNB may further include: the eNB sending a process binding deactivation message to the UE, to instruct the UE to freeze the first process and The process binding of one second process is stopped, and the same data packet is stopped on the first process and at least one second process.
  • the deactivation message may directly deactivate the at least one second process described in the activation message. All of the second processes in the subset, at which point it is not necessary to explicitly indicate the identity of each second process in the deactivation message.
  • the information of the one or more second processes in the subset of the at least one second process in the process binding activation message may be included to instruct the UE to freeze at least one of the first process and the process binding deactivation message.
  • First or more second process binding relationships in a subset of the second process and temporarily stopping one or more of the subset of the at least one second process in the first process and the process binding deactivation message
  • the same data packet is transmitted on the second process until the corresponding process binding activation message sent by the eNB is received again.
  • the UE may receive the process configuration message sent by the eNB in advance, but does not immediately implement the same data packet transmission on the first process and the at least one second process, when the activation command is received.
  • the same data packet is transmitted on the first process and the at least one second process.
  • the process binding relationship between the first process and the at least one second process may be frozen, which is more convenient for technical implementation. process.
  • step 202 “eNB receives the same data packet that the UE transmits on the first process and the at least one second process respectively”, Including the following steps:
  • the eNB decodes each data packet transmitted on the first process and the at least one second process according to the process binding relationship between the first process and the at least one second process; the step is based on receiving the data in step 202 above. The case of the package.
  • the eN B decodes the received data packet according to the process binding relationship between the first process and the at least one second process, and can know the same data packet received on the first process and the at least one second process.
  • the redundancy version of the packets received on each process may be different, which facilitates the decoding of the data packets.
  • the eNB sends the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process to the UE according to the decoding result, to instruct the UE to determine the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process.
  • the eNB receives the last time of the UE in the first process and the at least one second process respectively. A new packet that begins to transmit on the transmission opportunity.
  • the process configuration message sent by the eNB to the UE in step 201 may be specifically carried in the RRC reconfiguration message sent by the eNB to the UE, or may be other Dedicated messages, the invention is not limited.
  • the technical solution of the foregoing embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • the technical solution of the foregoing embodiment does not change the timing relationship of each process in the prior art, and the protocol modification is minimal, and the at least one second process can be flexibly configured for the first process according to different conditions of the UE.
  • the binding of the process, and has good compatibility with the existing related technology, the implementation is very simple.
  • the bundling process can also be referred to as a 4TTI bundling process in the following embodiments.
  • the eNB may configure a single TTI process for the 4TTI bundling process, or explicitly specify a single TTI process #j with a certain 4 TTI bundling process #i based on certain rules, where #i is 4 TTI bundling process
  • #i is 4 TTI bundling process
  • the identifier, #j is the identifier of the single TTI process.
  • the eNB may select a single TTI process corresponding to the subframe in which the 4 TTI bundling process is separated by K, as a configuration process of the 4 TTI bundling process, and is used for the 4 TTI bundling process. Line process binding.
  • the eNB may only configure the number of single TTI processes that need to be bound to the process of the 4 TTI bundling process of the UE. For example, the eNB may only notify the UE that the m single TTI processes need to be bound to the 4-TTI bundling process. Then, the UE selects m single TTI processes to perform binding with the 4-TTI bundling process according to certain regulations.
  • the specific selection rule may be a single TTI process corresponding to the subframe that is separated from the process of the 4 TTI bundling process, or other selection methods, which are not limited in the embodiment of the present invention.
  • FIG. 3 is a schematic diagram of data transmission in an embodiment of the present invention.
  • the binding of a 4TTI bundling process to two single TTI processes is used as an example.
  • Table 1 shows a 4TTI bundling process and two single TTI processes.
  • subframes 0 _ 3, 16 _ 19, 32 - 35 are 4TTI bundling processes, respectively, recorded as process #1, subframes 0 - 3 are initial transmission times, and the remaining subframes are retransmitted. time.
  • Subframes 6, 14, 22, 30, 38, and 46 correspond to a single TTI process, which we record as process #j, where 6 is the initial transmission time, and the other subframes are the time when the retransmission occurs.
  • Sub-frames 7, 15, 23, 31, 39, and 47 correspond to a single TTI process.
  • the calculation of the time of the HARQ feedback corresponding to each subframe can be referred to the prior art, and details are not described herein again.
  • the UE will be at the n+4th, that is, the 7th.
  • the 10, 11 subframe receives the ACK/NAK information fed back by the eNB.
  • the UE receives the NAK feedback in the 7th, 10th and 11th subframes, it means that the previous transmission has failed, so the UE needs to retransmit the subsequent processes, ie, subframes 14, 15 and ( 16, 17, 18, 19) Retransmit.
  • the UE will receive the ACK/NAK information fed back by the eNB. If the UE receives ACK feedback in the 18th or 19th subframe, it indicates that the eNB has received correctly, so the UE can stop retransmission of the data packet. And the transmission of the new data packet is performed at the transmission moment of each process to which the subsequent process is bound. If the UE receives the ACK feedback in the 23 subframes, the UE also performs the transmission of the new data packet in each of the subsequent processes bound by the process.
  • the UE performs a new time at the time when the bound processes of the ACK feedback can be transmitted. The transmission of data. Otherwise, if no ACK feedback is received, the UE continues to perform retransmission of the previous data at the retransmission of the subsequent bound processes until the maximum number of transmissions is reached.
  • the UE may have multiple services at the same time, when selecting a single process for binding to the currently bound process (such as the 4 TTI bundling process), it is possible to keep away from the currently bound process (such as 4).
  • the TTI bundling process selects the corresponding bound single process on the TTI, so that the transmission delay requirements of other services can be taken care of.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the above-described method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • FIG. 4 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in FIG. 4, the UE in this embodiment may specifically include: a receiving module 10, a binding module 11, and a sending module 12.
  • the receiving module 10 is configured to receive a process configuration message of the first process sent by the eNB; the binding module 11 is connected to the receiving module 10, and the binding module 11 sends the first process and the at least one second according to the process configuration message received by the receiving module 10.
  • the process is bound to the process; the sending module 12 is connected to the binding module 11, and the sending module is configured to transmit the same data packet on the first process bound by the binding module 11 and the at least one second process.
  • the UE in this embodiment implements the data packet transmission by using the foregoing module, and the implementation mechanism of the foregoing related method embodiment is the same.
  • the receiving module 10, the binding module 11 and the sending module 12 may specifically include a In a hardware processor.
  • the UE in this embodiment implements a process configuration message of the first process that is sent by the eNB by using the foregoing module, and performs process binding on the eNB first process and the at least one second process of the eNB according to the process configuration message;
  • the eNB first process and the eNB transmit the same data packet on at least one second process.
  • the technical solution of the embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • FIG. 5 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 5, the UE in this embodiment may further include the following technical solutions on the basis of the foregoing embodiment shown in FIG.
  • the binding module 11 is configured to: according to the identifier of the at least one second process, when the process configuration message received by the receiving module 10 includes the identifier of the at least one second process that is bound to the process by the first process. The process is bound to the first process and the at least one second process.
  • the process configuration message received by the receiving module 10 when the process configuration message received by the receiving module 10 includes the number of at least one second process bound to the process of the first process, the process is performed according to the process with the first process. Binding the number of at least one second process, selecting at least one second process; and binding the first process to the selected at least one second process.
  • the binding module 11 is specifically configured to: when the process configuration message received by the receiving module 10 includes indication information for indicating process binding to the first process, according to the indication for the first process Performing process binding indication information, selecting at least one second process; and binding the first process and the selected at least one second process to the process.
  • the process configuration message received by the receiving module 10 includes the number of the second process in the at least one second process that is bound to the process of the first process or is used to indicate the first
  • the sending module 12 is further configured to feed back, to the base station, the identifier of the at least one second process selected by the selected binding module, to notify the base station that the first process and the at least one second process are bound by the process. set.
  • the first process may be a binding process
  • the second process may be a binding process or a single process.
  • the binding process includes four TTIs.
  • the first process is a binding process and the second process is a single process
  • the sending module 12 in the foregoing embodiment transmitting the same data packet on the first process and the at least one second process
  • the first process is performed.
  • the four TTIs may be used to transmit different RV versions of the data packet, and the RV version of the data packet transmitted on at least one second process may be the same as the RV version transmitted in a certain TTI of the first process, or may be transmitted differently.
  • the RV version transmitted in each TTI in the first process may be a binding process
  • the second process may be a binding process or a single process.
  • the binding process includes four TTIs.
  • the four TTIs may be used to transmit different RV versions of the data packet
  • the RV version of the data packet transmitted on at least one second process may be the same as the RV version transmitted in a certain TTI of the
  • the first process is a binding process and the second process is a single process
  • a single process can be set.
  • the maximum number of retransmissions is less than the maximum number of retransmissions of the binding process. For example, you can set the maximum number of retransmissions of the binding process to 3, and set the maximum number of retransmissions for a single process to 6 times.
  • the maximum number of retransmissions of each second process may be the same or different.
  • the UE in this embodiment may further include a storage module 13.
  • the storage module 13 is connected to the receiving module 10, and is configured to: after the receiving module 10 receives the process configuration message sent by the eNB, before the sending module 12 transmits the same data packet on the first process and the at least one second process, the storage receiving module 10: Received process binding configuration information;
  • the receiving module 10 is further configured to receive a process binding activation message sent by the eNB, and send the binding activation message to the binding module 11 for instructing to start binding.
  • the sending module 12 is configured to, when the process binding activation message includes the subset information of the at least one second process, at least one second in the subset of the at least one second process indicated in the first process and the process binding activation message.
  • the same packet is transmitted on the process.
  • the UE in this embodiment may further include a freezing module 14 hinder wherein the receiving module 10 further transmits the same data as the transmitting module 12 on the first process and the at least one second process.
  • the process binding deactivation message sent by the eNB is received; at this time, the freezing module 14 is connected to the receiving module 10, and the freezing module 14 is configured to freeze the first process and at least in response to the process binding deactivation message received by the receiving module 10.
  • a process binding of a second process wherein the process binding deactivation message received by the receiving module 10 may also include at least one subset information of the second process, and the freezing module 14 is configured to respond to the process received by the receiving module 10.
  • Binding the deactivation message freezing at least one second of the subset of the at least one second process indicated by the subset information of the at least one second process in the first process and the process binding deactivation message
  • the process is bound by the process.
  • the sending module 12 stops transmitting the same data packet on at least one second process in the subset of the at least one second process indicated by the first process and the subset information of the at least one second process.
  • the sending module 12 is in the UE in the embodiment.
  • the timing relationship of the HARQ of the first process and the timing relationship of the HARQ of the at least one second process, and the process of the first process and the at least one second process are not performed.
  • the timing relationship of the HARQ of the first process and the timing relationship of the HARQ of at least one second process remain the same when bound.
  • the UE in this embodiment may further include a determining module 15.
  • the receiving module 10 is further configured to: after the transmitting module 12 transmits the same data packet on the first process and the at least one second process, receive the HARQ feedback message of the first process and the HARQ feedback of the at least one second process respectively sent by the eNB.
  • the HARQ feedback message of the first process is performed by the eN B according to the receiving result of the data packet sent on the first process, and the HARQ feedback message of each second process in the at least one second process is the eNB according to the second The result of receiving the packet sent on the process.
  • the determining module 15 is connected to the receiving module 10, and the determining module 15 is configured to determine the HARQ feedback message of the first process according to the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process respectively sent by the eNB received by the receiving module 10. And an acknowledgment message that the eNB receives the success of the data packet is included in the HARQ feedback message of the at least one second process.
  • the sending module 12 is further connected to the determining module 15, and the sending module 12 is further configured to: when the determining module 15 determines that the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process include the acknowledgment message that the eNB receives the data packet success.
  • the determining module 15 determines that the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process are included
  • the eNB receives the acknowledgment message of the success of the data packet, the same data packet is retransmitted on the first process and the at least one second process until the number of retransmissions reaches the maximum number of retransmissions, and ends.
  • the UE in the embodiment shown in FIG. 5 introduces the technical solution of the present invention by using all the optional technical solutions described above. In practical applications, all the foregoing optional technical solutions may be configured in any combination. An alternative embodiment of the invention is not repeated here.
  • the UE in this embodiment implements the data packet transmission by using the foregoing module, and the implementation mechanism of the foregoing related method embodiment is the same. For details, refer to the description of the foregoing related method embodiments, and details are not described herein again.
  • the UE in this embodiment can increase the process of transmitting the same data packet by using the foregoing module, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet. , can further enhance the uplink coverage.
  • FIG. 6 is a schematic structural diagram of an eNB according to an embodiment of the present invention. As shown in FIG. 6, the eNB of this embodiment may specifically include: a generating module 20, a sending module 21, and a receiving module 22.
  • the generating module 20 is configured to generate a process configuration message for the first process of the UE; the sending module 21 is connected to the generating module 20, and the sending module 21 is configured to send the process configuration message generated by the generating module 20 to the UE, to instruct the UE to configure the message according to the process.
  • the first process and the at least one second process are bound to the process; the receiving module 22 is configured to receive the same data packet that the UE transmits on the first process and the at least one second process respectively.
  • the eNB of the present embodiment implements the transmission of the data packet by using the above-mentioned module, and the implementation mechanism of the foregoing related method embodiment is the same. For details, reference may be made to the description of the related method embodiment, and details are not described herein again.
  • the generating module 20, the transmitting module 21, and the receiving module 22 may specifically be included in a hardware processor.
  • the eNB of this embodiment generates a process configuration message for the first process of the UE by using the foregoing module, and sends the generated process configuration message to the UE, to instruct the UE to process the first process and the at least one second process according to the process configuration message. Perform process binding, and receive the same data packet that the UE transmits on the first process and the at least one second process respectively.
  • the technical solution of the embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • FIG. 7 is a schematic structural diagram of an eNB according to another embodiment of the present invention. As shown in FIG. 7, the UE in this embodiment may further include the following technical solutions on the basis of the foregoing embodiment shown in FIG. 6.
  • the generating process 20 for the first process of the UE may include the identifier of the at least one second process that is bound to the process of the first process;
  • the eNB of this embodiment further includes a configuration module 23.
  • the configuration module 23 is configured to configure at least one second process for the first process of the UE before the generating module 20 generates a process configuration message for the first process of the UE. That is, the generating module 20 is connected to the configuration module 23, and the generating module 20 generates at least one second process for the first process of the UE according to the at least one second process configured by the configuration module 23 for the first process of the UE.
  • the identified process configuration message is configured to the generating module 20 generates at least one second process for the first process of the UE according to the at least one second process configured by the configuration module 23 for the first process of the UE.
  • the generating process 20, the generating process configuration message of the first process of the UE may also include the number of at least one second process that is bound to the process of the first process;
  • the configuration module 23 in the eNB of the embodiment is configured to configure, for the first process of the UE, at least one second process that is bound to the process of the first process, before the generating module 20 generates the process configuration message for the first process of the UE. quantity. That is, the generation module 20 generates at least one second for the first process of the UE according to the number of at least one second process that is configured by the configuration module 23 for the first process of the UE to be bound to the first process.
  • the process configuration message for the number of processes.
  • the generating process 20, the generating process configuration message of the first process of the UE may also include indication information for indicating that the process is bound to the first process, where the eNB is not the UE.
  • the information of any process that is bound to the first process is configured by the UE itself.
  • the eNB in this embodiment may further include a receiving module 22.
  • the receiving module 22 is configured to: when the process configuration message includes the number of the second process in the at least one second process that is bound to the process by the first process, or the indication information used to indicate process binding to the first process, The UE determines, according to the identifier of the at least one second process selected by the process configuration message, that the first process and the at least one second process are bound by the process.
  • the sending module 21 is further configured to: after sending the process configuration message to the UE, send a process binding activation message to the UE, to indicate that the UE is to be first according to the process configuration message.
  • the process and the at least one second process perform process binding, and the same data packet is transmitted on the first process and the at least one second process.
  • the sending module 21 sends, to the UE, the subset binding information that the process binding activation message may include at least one second process, to indicate that the UE is in the subset of the at least one second process indicated in the first process and the process binding activation message.
  • the same packet is transmitted on a second process.
  • the sending module 21 is further configured to send a process binding activation message to the UE, Sending a process binding deactivation message to the UE, to instruct the UE to freeze the process binding of the first process and the at least one second process, and stop transmitting the same data packet on the first process and the at least one second process.
  • the process binding deactivation message sent by the sending module 21 may also include at least one subset information of the second process, to instruct the UE to freeze the first process and the at least one second process indicated in the process binding deactivation message. a binding relationship of at least one second process in the subset, and temporarily stopping transmitting the same data on at least one second process in the subset of the at least one second process indicated in the first process and the process binding deactivation message package.
  • the eNB in this embodiment further includes a decoding module 24.
  • the receiving module 22 is further configured to: after the sending module 21 sends the process configuration message to the UE, receive the data packet that the UE transmits on the first process and the at least one second process respectively; the decoding module 24 is connected to the receiving module 22, and the decoding module 24 For receiving, by the receiving module 22, the data packet transmitted on the first process and the at least one second process, according to the process binding relationship of the first process and the at least one second process, the received first process and at least one Each packet transmitted on the second process is decoded.
  • the sending module 21 is further connected to the decoding module 24.
  • the sending module 21 is further configured to send, according to the decoding result of the decoding module 24, the HARQ feedback message of the first process and the HARQ feedback message of the at least one second process to the UE, respectively, to instruct the UE to determine Whether the HARQ feedback message of the process and the HARQ feedback message of the at least one second process include an acknowledgement message for receiving the data packet success; the receiving module 22 is further configured to: when the HARQ feedback message of the first process and the HARQ of the at least one second process The feedback message includes a new data packet that the UE starts to transmit on the last transmission opportunity of the first process and the at least one second process, respectively, when the acknowledgment message for receiving the data packet is successful.
  • the eNB of the present embodiment implements the data packet transmission by using the above-mentioned module, and the implementation mechanism of the foregoing related method embodiment is the same. For details, refer to the description of the related method embodiment, and details are not described herein again.
  • the eNB in this embodiment generates a process configuration message for the first process of the UE by using the foregoing module, and sends the generated process configuration message to the UE, to instruct the UE to process the first process and the at least one second process according to the process configuration message.
  • Process binding, and in the first process and at least The same packet is transmitted on a second process.
  • the technical solution of the embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • FIG. 8 is a schematic structural diagram of a data packet transmission system according to an embodiment of the present invention.
  • the data packet transmission system of this embodiment includes a UE 30 and an eNB 40.
  • the UE 30 and the eNB 40 are in communication with each other.
  • the eNB 40 is configured to generate a process configuration message for the first process of the UE 30, and send the generated process configuration message to the U30.
  • the UE 30 is configured to receive a process configuration message of the first process sent by the eNB 40, and bind the process to the first process and the at least one second process according to the process configuration message; and transmit the same on the first process of the binding and the at least one second process. Packet.
  • the UE 30 in this embodiment may specifically use the UE shown in FIG. 4 above.
  • the eNB 40 of this embodiment may specifically use the eNB shown in FIG. 6 above.
  • the UE 30 in this embodiment may also use the UE shown in FIG. 5 above.
  • the eNB 40 of this embodiment can also use the eNB shown in the above figure.
  • the implementation mechanism of the data packet transmission by the UE 30 and the eNB 40 in this embodiment may also refer to the descriptions of the foregoing embodiments of the present invention and the technical solutions of the corresponding optional implementation examples, and details are not described herein again.
  • the data packet transmission system of this embodiment generates a process configuration message by using the UE and the eNB to generate a process configuration message by using the eNB as the first process of the UE, and sends the process configuration message to the UE, and the UE firstly performs the eNB according to the process configuration message.
  • the process and the at least one second process of the eNB perform process binding; and transmit the same data packet on the first process of the eNB and the at least one second process of the eNB.
  • the technical solution of the embodiment can increase the process of transmitting the same data packet, and further reduce the error block rate of the eNB receiving the uplink data packet, especially in the edge region of the LTE system, by reducing the error block rate of the uplink data packet, Further enhance the uplink coverage.
  • the device embodiments described above are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, ie may be located in one place. , or it can be distributed to at least two network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. A person of ordinary skill in the art does not pay for creative labor. Underneath, it can be understood and implemented.

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Abstract

Un mode de réalisation de la présente invention porte sur un procédé et un système de transmission de paquet de données, un équipement utilisateur (UE) et un nœud B évolué (eNB), le procédé comprenant les opérations suivantes : l'UE reçoit le message de configuration de processus d'un premier processus transmis par l'eNB ; conformément au message de configuration de processus, regroupement du premier processus avec au moins un second processus ; et transmission du même paquet de données sur le premier processus et ledit au moins un second processus. La solution technique utilisée dans le mode de réalisation de la présente invention augmente les processus transmettant le même paquet de données, réduit le taux d'erreur sur les blocs d'un eNB durant une réception de paquet de données de liaison montante, et améliore en outre la couverture de liaison montante en particulier dans la zone de bordure d'un système LTE par réduction du taux d'erreur sur les blocs du paquet de données de liaison montante.
PCT/CN2013/070205 2012-05-02 2013-01-08 Procédé et système de transmission de paquet de données, équipement utilisateur et enb WO2013163895A1 (fr)

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