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WO2021037069A1 - 传输控制方法及装置 - Google Patents

传输控制方法及装置 Download PDF

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Publication number
WO2021037069A1
WO2021037069A1 PCT/CN2020/111424 CN2020111424W WO2021037069A1 WO 2021037069 A1 WO2021037069 A1 WO 2021037069A1 CN 2020111424 W CN2020111424 W CN 2020111424W WO 2021037069 A1 WO2021037069 A1 WO 2021037069A1
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Prior art keywords
duration
control
pdcp
control signaling
terminal device
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PCT/CN2020/111424
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English (en)
French (fr)
Inventor
王婷婷
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition

Definitions

  • the embodiments of the present application relate to communication technologies, and in particular, to a transmission control method and device.
  • PDCP duplication transmission can effectively improve the high reliability and low latency communication in 5G (Ultra Reliable Low Latency Communication) , URLLC) service reliability and reduce transmission delay.
  • 5G Ultra Reliable Low Latency Communication
  • URLLC Ultra Reliable Low Latency Communication
  • control of PDCP repeated transmission in the prior art is mainly to send control signaling to the terminal device through the network device, where the control signaling is used to indicate which radio link control (Radio Link Control, RLC) entities in the terminal device can Data transmission is carried out, so as to realize the repeated transmission of PDCP according to the instructions of the control signaling.
  • RLC Radio Link Control
  • the first control command carried in the control signaling sent by the network device and the second control command generated by the terminal device according to the preset conditions will cover each other.
  • the first control command carried in the control signaling sent by the network device is very fast
  • the utilization efficiency of the system resources will decrease and the performance will decrease.
  • the embodiments of the present application provide a transmission control method and device to overcome the problems of reduced utilization efficiency of system resources and performance degradation.
  • an embodiment of the present application provides a transmission control method, including:
  • the packet data aggregation protocol PDCP repeated transmission of the terminal device is controlled according to the control signaling, and the first time length is the effective time length of the control signaling.
  • the method further includes:
  • control signaling includes the first duration
  • the obtaining the first duration includes:
  • the obtaining the first duration includes:
  • the obtaining the first duration includes:
  • the first time length is obtained from an agreed agreement, where the first time length is included in the agreed agreement.
  • the first duration is the duration corresponding to the terminal device.
  • the first duration is the duration corresponding to the radio bearer RB, where any one of the control signaling corresponds to at least one of the RBs;
  • the first duration is the duration corresponding to the control signaling.
  • the first duration is a duration in numerical form
  • the first duration is infinity
  • the first time length is a time length corresponding to a target index value, wherein the target index value is an index value selected from a plurality of indicator index values of preset time lengths.
  • control signaling is a media access control layer MAC control element CE.
  • the controlling the repeated transmission of the packet data aggregation protocol PDCP of the terminal device according to the control signaling includes:
  • the PDCP repeated transmission function status of the radio link control RLC entity corresponding to the target RB is updated to be activated or deactivated, wherein the target RB is configured in the terminal device At least one RB of the PDCP repeated transmission function, and the indication information is used to respectively indicate the PDCP repeated transmission function status of each RLC entity;
  • the target RBs For any one of the target RBs, copy the PDCP protocol data unit PDU to the target number of RLC entities and respectively deliver them to the RLC entities in the active state, where the target number is the number of the RLC entities in the active state;
  • Each of the RLC entities in the active state respectively transmits multiple copies of the PDCP PDU.
  • the method further includes:
  • the new control signaling is used to cover the current control signaling, and the PDCP repeated transmission of the terminal device is controlled according to the new control signaling within a second time period, where the second time period is the new The effective duration of the control signaling.
  • the method further includes:
  • control the PDCP repeated transmission of the packet data aggregation protocol of the terminal device according to the autonomous control command generated by the terminal device.
  • an embodiment of the present application provides a transmission control device, including:
  • the receiving module is used to receive the control signaling sent by the network device
  • the control module is configured to control the PDCP repeated transmission of the packet data aggregation protocol of the terminal device according to the control signaling within a first time period, and the first time period is the effective time period of the control signaling.
  • control module is also used to:
  • the first time period is acquired before the repeated transmission of the packet data aggregation protocol PDCP of the terminal device is controlled according to the control signaling.
  • control signaling includes the first duration
  • the control module is specifically used for:
  • control module is specifically used for:
  • control module is specifically used for:
  • the first time length is obtained from an agreed agreement, where the first time length is included in the agreed agreement.
  • the first duration is the duration corresponding to the terminal device.
  • the first duration is the duration corresponding to the radio bearer RB, where any one of the control signaling corresponds to at least one of the RBs;
  • the first duration is the duration corresponding to the control signaling.
  • the first duration is a duration in numerical form
  • the first duration is infinity
  • the first time length is a time length corresponding to a target index value, wherein the target index value is an index value selected from a plurality of indicator index values of preset time lengths.
  • control signaling is a media access control layer MAC control element CE.
  • control module is specifically used for:
  • the PDCP repeated transmission function status of the radio link control RLC entity corresponding to the target RB is updated to be activated or deactivated, wherein the target RB is configured in the terminal device At least one RB of the PDCP repeated transmission function, and the indication information is used to respectively indicate the PDCP repeated transmission function status of each RLC entity;
  • the target RBs For any one of the target RBs, copy the PDCP protocol data unit PDU to the target number of RLC entities and respectively deliver them to the RLC entities in the active state, where the target number is the number of the RLC entities in the active state;
  • Each of the RLC entities in the active state respectively transmits multiple copies of the PDCP PDU.
  • control module is also used to:
  • the new control signaling is used to cover the current control signaling, and the PDCP repeated transmission of the terminal device is controlled according to the new control signaling within a second time period, where the second time period is the new The effective duration of the control signaling.
  • control module is also used to:
  • the terminal device After the end of the first duration, if the current time is not within the time range of the effective duration of any control instruction, determining whether the terminal device generates an autonomous control instruction for controlling PDCP repeated transmission of the terminal device;
  • control the PDCP repeated transmission of the packet data aggregation protocol of the terminal device according to the autonomous control command generated by the terminal device.
  • an embodiment of the present application provides a transmission control device, including:
  • Memory used to store programs
  • the processor is configured to execute the program stored in the memory, and when the program is executed, the processor is configured to execute the method described in the above first aspect and any of the various possible designs of the first aspect.
  • embodiments of the present application provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute the above-mentioned first aspect and any of the various possible designs of the first aspect method.
  • the embodiments of the present application provide a transmission control method and device.
  • the method includes: receiving control signaling sent by a network device.
  • the packet data aggregation protocol PDCP repeated transmission of the terminal equipment is controlled according to the control signaling, and the first duration is the effective duration of the control signaling.
  • Figure 1 is a schematic diagram of interaction between terminal equipment and network equipment
  • Figure 2 is a schematic diagram of a PDCP repeated transmission model in a CA scenario
  • Figure 3 is a schematic diagram of a PDCP repeated transmission model in a DC scenario
  • Figure 4 is a schematic diagram of a PDCP repeated transmission model in a multi-connection scenario
  • FIG. 5 is a first flowchart of a transmission control method provided by an embodiment of this application.
  • FIG. 6 is a second flowchart of a transmission control method provided by an embodiment of this application.
  • FIG. 7 is a schematic diagram of the effect of the first duration of the action object provided by the embodiment of this application.
  • FIG. 8A is a schematic diagram of the realization combination of the first duration provided by an embodiment of the application.
  • FIG. 8B is a schematic diagram of the first combination of the first duration provided by an embodiment of the application.
  • FIG. 8C is a schematic diagram of a second combination of the first duration provided by an embodiment of the application.
  • FIG. 9 is a third flowchart of a transmission control method provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a transmission control device provided by an embodiment of the application.
  • FIG. 11 is a schematic diagram of the hardware structure of a transmission control device provided by an embodiment of the application.
  • the 5G NR next generation Radio
  • eMBB enhanced Mobile
  • mMTC massive MachineType Communications
  • URLLC Ultra-Reliable and Low Latency Communications, high reliability and low latency communications
  • a solution currently given by 3GPP is to introduce a PDCP duplication (PDCP repeated transmission) mechanism, that is, to transmit the same PDCP layer through multiple paths PDU (Protocol Data Unit) improves transmission reliability and reduces transmission delay through multiple transmission gains.
  • PDCP duplication PDCP repeated transmission
  • PDU Protocol Data Unit
  • a PDCP PDU can be copied into two identical copies and sent to two different RLC entities respectively, where different RLC entities can correspond to different
  • the original data and the copied data can be transmitted through different cells respectively. If the receiving end successfully receives the original data and the copied data, the PDCP layer at the receiving end will pair the same two successfully received One PDCP PDU, delete one of them and retain only one data, that is to say, copy the same data packet into the same two copies and transmit them through two different links, thereby improving the reliability of data transmission It is worth noting that the above-mentioned copying into the same two copies is only an exemplary description. In the specific implementation process, the specific number of copies of the data can be selected according to requirements.
  • FIG. 1 is a schematic diagram of the interaction between terminal equipment and network equipment, as shown in Figure 1. Shown:
  • the network device can send a radio resource control (Radio Resource Control, RRC) message to the terminal device.
  • the RRC message can contain the configuration information of the RB’s PDCP repeat transmission function. Specifically, the RRC message will indicate that a PDCP repeat transmission function is configured.
  • the RB establishes at least one additional additional RLC entity for repeated transmission, so that the original PDCP PDU and the copied PDCP PDU can be transmitted separately through different RLC entities.
  • the RRC message may also Indicate the cell group ID and logical channel ID (LCID) of the RLC entity; or, the RRC message can also set the initial state of the repeated transmission function (active or active) for each RB configured with the PDCP repeated transmission function. Not activated).
  • LCID logical channel ID
  • the duplication configuration information is contained in a large RRC message.
  • this RRC message can contain the configuration information of many RBs, or it may contain the current configuration information.
  • the configuration information of all RBs of the terminal equipment, and the configuration information of each RB contains many aspects of data, and the function information used for duplication is only one or two fields in the configuration information. When the field appears, it means that the RB is configured with duplication. If it does not appear, it means that the RB is not configured with duplication.
  • the RB in this embodiment may be a data radio bearer (Date Radio Bearer, DRB) or a signaling radio bearer (Signalling Radio Bearer, SRB).
  • DRB is only used to transmit RRC messages and non- Non-Access Stratum (NAS) messages
  • DRB is used to carry user data.
  • One RB can correspond to one PDCP entity.
  • the data in the PDCP layer includes two types: PDCP Data PDU and PDCP Control PDU, where PDU represents a data unit, which can be understood as a data packet, and the data packet continuously enters the PDCP layer from the upper layer or the lower layer. Once the duplication function is activated, all entries will be blocked. The PDUs to the PDCP layer are copied and sent separately.
  • the RB described below can be a DRB, but the possibility that the RB can be an SRB is not ruled out in this application.
  • SRB transmission it is similar to DRB, so RB is used in the following. Introduction, covering both possibilities together.
  • Figure 2 is a schematic diagram of a PDCP repeated transmission model in a CA scenario
  • Figure 3 is a schematic diagram of a PDCP repeated transmission model in a DC scenario.
  • one RB in the PDCP layer corresponds to a PDCP entity, which is used to carry a PDCP PDU. It is assumed that the current RB corresponds to the PDCP of RLC entity 1 and RLC entity 2 If the transmission function is active, both RLC entity 1 and RLC entity 2 can be used to transmit data.
  • One RLC entity corresponds to a logical channel (Logical Channel, LCH), and it can be transmitted separately through multiple logical channels at the RLC layer. , Where each LCH corresponds to an RLC entity, as shown in Figure 2.
  • LCH Logical Channel
  • multiple RLC entities corresponding to the RB correspond to one MAC entity, and data from multiple different RLC entities are respectively mapped to different carriers for transmission.
  • the RLC entity 1 can correspond to cell 1 and cell 2
  • the RLC entity 2 can correspond to cell 3, cell 4, and cell 5.
  • the PDCP repeated transmission model in the DC scenario is similar to the PDCP repeated transmission model in the CA scenario.
  • the only difference is that the RB corresponds to more
  • each RLC entity is mapped to different MAC entities, it is natural to map data from multiple different RLC entities to different carriers for transmission.
  • the rest of the implementation manners are similar and will not be repeated here.
  • Figure 4 is a schematic diagram of a PDCP repeated transmission model in a multi-connection scenario, as shown in Figure 4:
  • the PDCP repeated transmission of the DC scene and the CA scene can be combined at the same time, so that one piece of data can be transmitted through more than two links for more than two copies.
  • each RLC entity of RB1 corresponds to the same MAC entity 1, so RB1 corresponds to the PDCP repeated transmission function configured in the CA scenario; and PDCP2 corresponds to RB2 ,
  • RLC7 and RLC8 of RB2 correspond to a MAC entity 1
  • RLC1 ⁇ , RLC2 ⁇ and RLC3 ⁇ correspond to a MAC entity 2, so if it is RLC7 and RLC8, or RLC1 ⁇ , RLC2 ⁇ and RLC3 ⁇
  • RB2 corresponds to the PDCP repetitive transmission function configured in the CA scenario
  • RLC8 and RLC1 ⁇ of RB2 correspond to two different MAC entities, so if you use RLC8 and RLC1 ⁇ to say (or RLC1 ⁇ and RLC7, etc.)
  • RB2 corresponds to the PDCP repeated transmission function configured in the DC scenario.
  • RLC1 and RLC shown in Figure 4 are completely different. Different RLC entities, as well as cell group 1 and cell group 1 ⁇ are also completely different cells, and the remaining RLC2 and RLC2 ⁇ etc. are also similar, and they are all completely different, and will not be repeated here.
  • each RLC entity of PDCP1 corresponds to a different cell group.
  • each RLC entity of PDCP2 corresponds to a different cell group, but the cells in the cell group corresponding to the RLC entity of PDCP1 and the RLC entity of PDCP2 can partially or completely overlap, that is, as long as it is ensured that the transmission for the same piece of data corresponds to Different cells are sufficient.
  • the cell groups corresponding to each RLC entity of PDCP1 are different, and the cell groups corresponding to each RLC entity of PDCP2 are also different, but the cell group 1 corresponding to RLC entity 1 of PDCP1
  • the cells in the cell group 7 corresponding to the RLC entity 7 of PDCP2 may partially overlap or completely overlap.
  • the state of the PDCP repeated transmission function of the RLC entity where the state can be activated or Inactive.
  • the PDCP repeat transmission function status of the RLC entity indicates that data can be transmitted through the current RLC entity.
  • the PDCP repeat transmission function status of the RLC entity is inactive, it indicates that data cannot be transmitted through the current RLC entity.
  • the current control mechanism for PDCP repeated transmission mainly includes the following two implementation methods:
  • the network device sends control signaling to the terminal device.
  • the control signaling includes a bitmap, which includes multiple bits, and each bit corresponds to an RB configured with the PDCP function.
  • the bit corresponding to a certain RB is indicated as 1, which means the RB is activated, and the corresponding bit is indicated as 0, which means the RB is deactivated; or, in another possible realization In the mode, 0 means deactivation, and 1 means deactivation.
  • all RLC entities corresponding to the RB configured with the PDCP function have their respective bits to indicate whether they are activated or deactivated.
  • 1 means activation and 0 means deactivation; or, it can Use at least one bit to indicate the RLC entity that needs to be activated.
  • the control signaling sent for RB1 includes: 001, 010, and 100, which means that the RLC entities that need to be activated currently are RLC1, RLC2, and RLC4, and other possible implementations
  • the method can also be selected according to actual requirements. For example, at least one bit can be used in the control signaling to indicate the RLC entity that needs to be deactivated, and the rest of the implementation methods will not be repeated here.
  • the PDCP layer will copy the data packet and send the same two PDCP PDUs to the two RLC entities corresponding to the RB. These two RLC entities The original PDCP PDU and the copied PDCP PDU will be sent separately.
  • the PDCP layer at the transmitting end will not copy the new data packet and transfer it to the original
  • the RLC entity sends new data instead of sending new data to the additional RLC entity.
  • the PDCP entity at the sending end will notify the additional RLC entity to cancel the buffered data in the additional LCH. It is understandable that it is also equivalent to the additional RLC entity being removed activation.
  • the network device provides the terminal device with a control threshold (or control condition) for controlling activation or deactivation.
  • the terminal device measures the variables corresponding to the control threshold. If the threshold configured by the network device is met, the terminal device will The corresponding RLC entity can be activated/deactivated by itself.
  • control threshold may include the following, for example:
  • MAC layer hybrid automatic repeat request Hybrid Automatic Repeat Request, HARQ
  • RLC automatic repeat request Automatic Repeat reQuest, ARQ
  • the packet loss rate detected by the current terminal device is greater than the preset packet loss rate
  • set the current RLC entity's PDCP repeated transmission status to deactivated then take the above control threshold A as an example for illustration.
  • the current channel status is the preset status
  • the current RLC logical channel can be determined It is suitable for data transmission, so as to set the PDCP repeated transmission status of the current RLC entity to active, where the preset status can be, for example, L1, or L3 filtered RSRP/RSRQ threshold, or path loss, etc.
  • control threshold is only an exemplary introduction and is not the only limitation.
  • the specific implementation of the control threshold can be set according to actual needs.
  • the control threshold can be selected from one of them, or any combination, etc., and this embodiment does not make this description. limited.
  • the network dynamic control mechanism is a necessary feature of the UE, that is, it can be realized without any configuration, but the autonomous control mechanism based on the threshold of the terminal device is supplementary and configurable Therefore, the network device can selectively configure the control mechanism for the terminal device, and the network device can also use the RRC message or other control signaling to make the control mechanism effective or invalid.
  • a DRB configured with the PDCP repeat transmission function is configured with an autonomous control mechanism based on the threshold of the terminal device, the control command issued by the network device and the control command independently generated by the terminal device will cover each other, because the terminal device autonomously generates
  • the control command may only take into account its own situation, but the control command issued by the network device may coordinate the entire network situation, so the network device will hope that the decision issued by the control signaling by itself will be effective within a certain period of time. To be covered or not to be covered quickly, and quickly covering the control commands issued by the network equipment will reduce the efficiency of resource utilization and the overall system performance.
  • this application provides a transmission control method to improve resource utilization efficiency and overall system performance.
  • the transmission control method provided by this application will be described in detail below with reference to FIG. 5, which is provided by an embodiment of this application.
  • Flowchart 1 of the transmission control method, as shown in Figure 5, the method includes:
  • S501 Receive control signaling sent by a network device.
  • the network device may include, but is not limited to, a remote node in the room, a wireless local area network access point (Wireless Local Area Networks Access Point, WLAN AP), a base station, etc.
  • WLAN AP Wireless Local Area Networks Access Point
  • the specific implementation of the network device can be based on actual conditions. The selection is required as long as the network equipment can be used for network transmission and can send control signaling.
  • control signaling sent by the network device is used to indicate the status of the PDCP repeated transmission function of the terminal device.
  • the control signaling may be, for example, a Medium Access Control (MAC) control element (CE). Or, it may also be any form of signaling message that can be used to indicate status, such as an RRC message, which is not particularly limited in this embodiment.
  • MAC Medium Access Control
  • CE Control element
  • the terminal device may be a computer device, a tablet computer, or a smart phone, etc., or it may also be a mobile terminal (Mobile Terminal) or a mobile terminal device, a mobile phone (or “cellular” phone), a vehicle-mounted processing device, or Mobile computers, such as portable computers, pocket computers, or handheld computers, etc., are not limited in this application.
  • control repeated transmission of the packet data aggregation protocol PDCP of the terminal device according to the control signaling and the first time period is the effective time period of the control signaling.
  • a first time length is set for the control signaling.
  • the PDCP packet data aggregation protocol that controls the terminal equipment according to the control signaling is repeatedly transmitted, that is to say, the terminal equipment will not be transmitted in the first time length.
  • the control instruction generated or the control instruction generated by the terminal device will not work. Therefore, the control information sent by the network device will not be overwritten during the first period of time.
  • a timer can be set for the control signaling, where the timer carries a first duration, and the first duration is used to indicate the effective duration of the control signaling.
  • the terminal The threshold-based autonomous control mechanism of the device is invalid. Therefore, the terminal device will not automatically generate control commands within the first time period, and naturally it will not cover the control signaling decisions of the network device, thereby improving the efficiency of resource utilization and the overall System performance.
  • the transmission control method provided by the embodiment of the present application includes: receiving control signaling sent by a network device.
  • the packet data aggregation protocol PDCP repeated transmission of the terminal equipment is controlled according to the control signaling, and the first duration is the effective duration of the control signaling.
  • FIG. 6 is the second flow chart of the transmission control method provided by the embodiment of the application
  • FIG. 7 is the schematic diagram of the effect of the first duration provided by the embodiment of the application
  • FIG. 8A is the first duration provided by the embodiment of the application
  • FIG. 8B is a schematic diagram of the first combination of the first duration provided in an embodiment of this application
  • FIG. 8C is a schematic diagram of the second combination of the first duration provided in an embodiment of this application.
  • the method includes:
  • S601 is the same as that of S501, except that the control signaling in S601 is specifically MAC CE, so the detailed implementation of S601 will not be repeated here.
  • the acquisition of the first duration can be separately introduced in terms of acquisition methods, role objects, and implementation forms. It should be noted that in this embodiment, it is an implementation method "MAC CE" that specifically combines control signaling. In the introduction, the other possible implementations of the control signaling are similar, and will not be repeated in this article. Therefore, the MAC CE in the following is not the only restriction on the control signaling.
  • the first duration is acquired in the control signaling.
  • the first duration may be a field added to the MAC CE, or information carried by the MAC CE, and so on.
  • first signaling sent by a network device is received, where the first signaling includes the first duration, and the first duration is acquired in the first signaling.
  • the first signaling is a separate signaling independent of the MAC CE, that is, the network device sends a separate signaling message to indicate the effective duration of the MAC CE.
  • the first duration is obtained from the agreed agreement, where the agreed agreement includes the first duration.
  • the agreed protocol is a pre-arranged agreement between the network device and the terminal device, and the first duration is included in the agreed protocol.
  • the first duration is the duration corresponding to the terminal device, that is to say, the entire terminal device adopts the same first duration, which can be understood with reference to the leftmost part of FIG.
  • the included RBs and each RLC entity corresponding to each RB correspond to the same first duration, and the same first duration is indicated by gray shading in FIG. 7.
  • the first duration is the duration corresponding to the RB, where any one of the control signaling corresponds to at least one RB.
  • the MAC CE may, for example, The first N bits are used to indicate RB1, and the last M bits are used to indicate RB2.
  • N and M are integers
  • RB1 can use a first duration
  • RB2 can use another first duration.
  • the RB introduced here is an RB configured with a PDCP repeated transmission function.
  • the first duration is the duration corresponding to the control signaling.
  • the current MAC CE corresponds to two RBs, because in the current implementation, the first duration needs to be the control signaling.
  • the corresponding duration all the RBs indicated by the control signaling correspond to the same first duration. It can be understood with reference to the rightmost side of Figure 7 that RB1 and RB2 use the same first duration.
  • the RBs introduced here It is an RB configured with PDCP repeated transmission.
  • the first duration is a duration in numerical form, for example, a value of 90 directly, and the unit of the first duration may be a pre-appointed unit, or may be sent in real time, for example, 90 milliseconds.
  • the first duration is infinity.
  • the first duration is set to infinity, it indicates that the current MAC CE corresponding control command is permanently effective, that is to say, the terminal device corresponding to the current RB is based on the threshold
  • the autonomous control mechanism is permanently banned.
  • the first time length is the time length corresponding to the target index value, where the target index value is an index value selected from a plurality of preset time length indicator index values, for example, how many times can be preset There are two preset durations, such as 3 seconds, 90 milliseconds, 15 minutes, etc., where each preset duration corresponds to its own indicator index value. When needed, directly select the index value to obtain the target index value. When the duration is long, the content obtained is also the target index value, and then the duration corresponding to the target index value can be obtained.
  • the various possible implementations of the first time duration's acquisition path, action object, and implementation form can all be selected from each of the three parts and combined arbitrarily, and the combination can be seen in FIG. 8A.
  • the following three parts are combined together to explain several possible implementations of obtaining the first duration:
  • the first duration is the duration corresponding to the terminal device, which is the duration in numerical form.
  • the MAC CE includes the first duration, and the first duration is obtained from the MAC CE, indicating that the MAC CE carries the duration in numerical form Field, after receiving the MAC CE, the terminal device obtains the duration field in numerical form from the MAC CE, and makes the entire terminal device adopt the first duration;
  • the first duration is the duration corresponding to the control signaling, which is the duration corresponding to the target index value.
  • the terminal device receives the first signaling sent by the network device. If the first signaling includes the first duration, then the first signaling In this implementation mode, the content included in the first signaling sent by the network device is the target index value. After receiving the first signaling, the terminal device first obtains the target index value, and then according to The target index value is searched in the indicator index value of the preset duration, so as to obtain the first duration corresponding to the target index value. It can be understood that the preset duration is pre-appointed by the network device and the terminal device, so the terminal device can The first duration is determined according to the target index value, and at the same time, the first duration acts on all RBs corresponding to the control signaling.
  • the indication information included in the MAC CE update the PDCP repeated transmission function status of the radio link control RLC entity corresponding to the target RB to activated or deactivated, where the target RB is the terminal device configured with the PDCP repeated transmission function
  • the indication information is used to indicate the status of the PDCP repeated transmission function of each RLC entity.
  • the MAC CE contains indication information.
  • the indication information is used to indicate the status of the PDCP repeated transmission function of each RLC entity, where the status can be activated or inactive.
  • the indication information can be, for example, 1. Indicate the activation of the RLC entity, and use 0 to identify the deactivation of the RLC entity; alternatively, the decimal number corresponding to the binary coded 01 can also be used to indicate the activated or deactivated RLC entity. It should be emphasized that each RLC entity in this embodiment is Corresponding to have their own instructions.
  • At least one RB configured with the PDCP repetitive transmission function in the terminal device is determined as the target RB, so that the PDCP repetitive transmission function status of the RLC entity corresponding to the target RB can be updated to active according to the indication information included in the MAC CE Or deactivate for subsequent data transmission.
  • Each target RB corresponds to the transmission of a PDCP PDU.
  • the following describes any one of the target RBs.
  • the number of active RLC entities in the current target RB is the target number, and each RLC entity in the active state can be used For data transmission, the PDCP PDU is copied to the target number and delivered to the RLC entity in the active state.
  • each RLC entity in the active state transmits multiple PDCP PDUs respectively.
  • each RLC entity in the active state transmits multiple PDCP PDUs respectively, and the network device of the transmission control command is issued, so the effective duration is the first duration.
  • the transmission control method provided by the embodiment of the present application includes: receiving control signaling sent by the MAC CE. Get the first duration.
  • the indication information included in the MAC CE the PDCP repetitive transmission function status of the radio link control RLC entity corresponding to the target RB is updated to active or deactivated, where the target RB is at least one of the terminal equipment configured with the PDCP repetitive transmission function.
  • the indication information is used to respectively indicate the PDCP repeated transmission function status of each RLC entity.
  • the PDCP protocol data unit PDU is copied to the target quantity and respectively delivered to the RLC entity in the activated state, where the target quantity is the number of the RLC entity in the activated state.
  • each RLC entity in the active state transmits multiple PDCP PDUs respectively.
  • the resource utilization efficiency and overall system performance can be improved.
  • the first duration can be obtained through various combinations, thereby extending the first duration. The method of time length enhances its applicability and universality.
  • the network device may also generate new control signaling according to the current network status, device connection status, etc., so that the overall resource From the perspective of allocation, readjust the RLC entity activated by the RB.
  • FIG. 9 is the third flow chart of the transmission control method provided by the embodiment of this application.
  • the method includes:
  • S901 Within the time range of the first duration, determine in real time whether the terminal device receives a new control signaling sent by the network device, if yes, execute S902, and if not, execute S903.
  • the new control signaling is used to cover the current control signaling, and the PDCP repeated transmission of the terminal device is controlled according to the new control signaling within a second time period, where the second time period is the effective time period of the new control signaling.
  • the new control signaling is used to cover the current control signaling, and the PDCP repeated transmission of the terminal equipment is controlled according to the new control signaling within the second time period.
  • the second time period is the effective time period of the new control signaling.
  • new control signaling to cover the current control signaling class can be understood as when the new control command is received, the first duration of the original control command has ended, and the terminal is directly controlled according to the new control command.
  • the PDCP transmission of the device is repeated.
  • the new control signaling is used to cover the current control signaling
  • the PDCP repeated transmission of the terminal device is controlled according to the new control signaling, and the second time period is the effective time period of the new control signaling, so that the overall resource allocation situation is more reasonable and the transmission efficiency of the overall system is increased.
  • the terminal device equipped with the threshold-based autonomous control mechanism of the terminal device can automatically generate the control command. Specifically, if the current time is not in the effective duration of any control command Within the time range, it is determined whether the terminal device generates an autonomous control command for controlling the PDCP repeated transmission of the terminal device. If so, the terminal device's packet data aggregation protocol PDCP repeated transmission is controlled according to the autonomous control command generated by the terminal device.
  • the terminal device when the terminal device measures the variables corresponding to the control threshold and determines that the measured value meets the control threshold, it generates an autonomous control instruction for controlling the PDCP repeated transmission of the terminal device.
  • the network device does not control the terminal.
  • the terminal device adopts the threshold-based autonomous control mechanism to control the PDCP repeated transmission function, so as to realize the flexibility of PDCP repeated transmission.
  • FIG. 10 is a schematic structural diagram of a transmission control device provided by an embodiment of the application. As shown in FIG. 10, the device 100 includes: a receiving module 1001 and a control module 1003.
  • the receiving module 1001 is used to receive control signaling sent by a network device
  • the control module 1002 is configured to control the PDCP repeated transmission of the packet data aggregation protocol of the terminal device according to the control signaling within a first time period, where the first time period is the effective time period of the control signaling.
  • control module 1002 is also used to:
  • the first time period is acquired before repeated transmission of the packet data aggregation protocol PDCP of the terminal device is controlled according to the control signaling.
  • control signaling includes the first duration
  • the control module 1002 is specifically used for:
  • control module 1002 is specifically used for:
  • control module 1002 is specifically used for:
  • the first time length is obtained from an agreed agreement, where the first time length is included in the agreed agreement.
  • the first duration is the duration corresponding to the terminal device.
  • the first duration is the duration corresponding to the radio bearer RB, where any one of the control signaling corresponds to at least one of the RBs;
  • the first duration is the duration corresponding to the control signaling.
  • the first duration is a duration in numerical form
  • the first duration is infinity
  • the first time length is a time length corresponding to a target index value, wherein the target index value is an index value selected from a plurality of indicator index values of preset time lengths.
  • control signaling is a media access control layer MAC control element CE.
  • control module 1002 is specifically used for:
  • the PDCP repeated transmission function status of the radio link control RLC entity corresponding to the target RB is updated to be activated or deactivated, wherein the target RB is configured in the terminal device At least one RB of the PDCP repeated transmission function, and the indication information is used to respectively indicate the PDCP repeated transmission function status of each RLC entity;
  • the target RBs For any one of the target RBs, copy the PDCP protocol data unit PDU to the target number of RLC entities and respectively deliver them to the RLC entities in the active state, where the target number is the number of the RLC entities in the active state;
  • Each of the RLC entities in the active state respectively transmits multiple copies of the PDCP PDU.
  • control module 1002 is also used to:
  • the new control signaling is used to cover the current control signaling, and the PDCP repeated transmission of the terminal device is controlled according to the new control signaling within a second time period, where the second time period is the new The effective duration of the control signaling.
  • control module 1002 is also used to:
  • the terminal device After the end of the first duration, if the current time is not within the time range of the effective duration of any control instruction, determining whether the terminal device generates an autonomous control instruction for controlling PDCP repeated transmission of the terminal device;
  • control the PDCP repeated transmission of the packet data aggregation protocol of the terminal device according to the autonomous control command generated by the terminal device.
  • the device provided in this embodiment can be used to implement the technical solutions of the foregoing method embodiments, and its implementation principles and technical effects are similar, and will not be repeated here in this embodiment.
  • FIG. 11 is a schematic diagram of the hardware structure of a transmission control device provided by an embodiment of the application.
  • the transmission control device 110 of this embodiment includes a processor 1101 and a memory 1102;
  • the memory 1102 is used to store computer execution instructions
  • the processor 1101 is configured to execute computer-executable instructions stored in the memory to implement each step executed by the transmission control method in the foregoing embodiment. For details, refer to the relevant description in the foregoing method embodiment.
  • the memory 1102 may be independent or integrated with the processor 1101.
  • the transmission control device further includes a bus 1103 for connecting the memory 1102 and the processor 1101.
  • the embodiment of the present application also provides a computer-readable storage medium in which computer-executable instructions are stored.
  • the processor executes the computer-executed instructions, the transmission control method executed by the above transmission control device is implemented. .
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the modules is only a logical function division, and there may be other divisions in actual implementation, for example, multiple modules can be combined or integrated. To another system, or some features can be ignored, or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or modules, and may be in electrical, mechanical or other forms.
  • the above-mentioned integrated modules implemented in the form of software functional modules may be stored in a computer readable storage medium.
  • the above-mentioned software function module is stored in a storage medium and includes a number of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor (English: processor) execute the various embodiments of this application Part of the method.
  • processor may be a central processing unit (English: Central Processing Unit, abbreviated as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor, abbreviated as: DSP), and application-specific integrated circuits. (English: Application Specific Integrated Circuit, referred to as ASIC) etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in combination with the application can be directly embodied as being executed and completed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory may include a high-speed RAM memory, or may also include a non-volatile storage NVM, such as at least one disk storage, and may also be a U disk, a mobile hard disk, a read-only memory, a magnetic disk, or an optical disk.
  • NVM non-volatile storage
  • the bus can be an Industry Standard Architecture (ISA) bus, Peripheral Component (PCI) bus, or Extended Industry Standard Architecture (EISA) bus, etc.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into address bus, data bus, control bus and so on.
  • the buses in the drawings of this application are not limited to only one bus or one type of bus.
  • the above-mentioned storage medium can be realized by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Except programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable except programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • optical disk any available medium that can be accessed by a general-purpose or special-purpose computer.
  • a person of ordinary skill in the art can understand that all or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware.
  • the aforementioned program can be stored in a computer readable storage medium. When the program is executed, it executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.

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Abstract

本申请实施例提供一种传输控制方法及装置，该方法包括：接收网络设备发送的控制信令。在第一时长内，根据控制信令控制终端设备的分组数据聚合协议PDCP重复传输，第一时长为控制信令的生效时长。通过在第一时长内根据控制信令控制终端设备的PDCP重复传输，从而使得在第一时长内网络设备下发的决定不会被覆盖，从而能够提高资源的利用效率以及总体的系统性能。

Description

传输控制方法及装置
本申请要求于2019年8月26日提交中国专利局、申请号为2019107889832、申请名称为“传输控制方法及装置”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
本申请实施例涉及通信技术，尤其涉及一种传输控制方法及装置。
背景技术
5G中引入了一种新技术——分组数据聚合协议(Packet Data Convergence Protocol，PDCP)重复(duplication)传输，其中PDCP重复传输能够有效提高5G中的高可靠低时延通信(Ultra Reliable Low Latency Communication，URLLC)业务的可靠性并减小传输时延。
目前，现有技术中对PDCP重复传输进行控制主要是通过网络设备向终端设备发送控制信令，其中控制信令用于指示终端设备中的哪些无线链路控制(Radio Link Control，RLC)实体能够进行数据传输，从而根据控制信令的指示实现对PDCP重复传输的实现。
然而，网络设备发送的控制信令所携带的第一控制指令和终端设备根据预设条件产生的第二控制指令会互相覆盖，当网络设备发送的控制信令所携带的第一控制指令很快被第二控制指令覆盖时，会导致系统资源的利用效率降低以及性能下降。
发明内容
本申请实施例提供一种传输控制方法及装置，以克服系统资源的利用效率降低以及性能下降的问题。
第一方面，本申请实施例提供一种传输控制方法，包括：
接收网络设备发送的控制信令；
在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，所述第一时长为所述控制信令的生效时长。
在一种可能的设计中，在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输之前，还包括：
获取所述第一时长。
在一种可能的设计中，所述控制信令中包括所述第一时长；
所述获取所述第一时长，包括：
在所述控制信令中获取所述第一时长。
在一种可能的设计中，所述获取所述第一时长，包括：
接收所述网络设备发送的第一信令，所述第一信令中包括所述第一时长；
在所述第一信令中获取所述第一时长。
在一种可能的设计中，所述获取所述第一时长，包括：
从约定协议中获取所述第一时长，其中，所述约定协议中包括所述第一时长。
在一种可能的设计中，所述第一时长为所述终端设备对应的时长；或者
所述第一时长为无线承载RB所对应的时长，其中，任一个所述控制信令对应至少一个所述RB；或者
所述第一时长为所述控制信令对应的时长。
在一种可能的设计中，所述第一时长为数值形式的时长；或者
所述第一时长为无穷大；或者
所述第一时长为目标索引值所对应的时长，其中，所述目标索引值为在多个预设时长的指示索引值中选择的索引值。
在一种可能的设计中，所述控制信令为媒体接入控制层MAC控制元素CE。
在一种可能的设计中，所述根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，包括：
根据所述MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体的PDCP重复传输功能状态更新为激活或者去激活，其中，所述目标RB为所述终端设备中配置了所述PDCP重复传输功能的至少一个RB，所述指示信息用于分别指示各所述RLC实体的PDCP重复传输功能状态；
针对任一个所述目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的所述RLC实体，其中，所述目标数量为处于激活状态的所述RLC实体的数量；
所述处于激活状态的各所述RLC实体分别对多份所述PDCP PDU进行传输。
在一种可能的设计中，所述方法还包括：
在所述第一时长的时间范围内，实时判断所述终端设备是否接收到网络设备发送的新的控制信令；
若是，则采用所述新的控制信令覆盖当前的控制信令，并在第二时长内，根据所述新的控制信令控制终端设备的PDCP重复传输，所述第二时长为所述新的控制信令的生效时长。
在一种可能的设计中，当第一时长结束之后，所述方法还包括：
若当前时刻不在任何控制指令的生效时长的时间范围内，则判断所述终端设备是否产生有用于控制所述终端设备的PDCP重复传输的自主控制指令；
若是，则根据所述终端设备产生的自主控制指令控制终端设备的分组数据聚合协议PDCP重复传输。
第二方面，本申请实施例提供一种传输控制装置，包括：
接收模块，用于接收网络设备发送的控制信令；
控制模块，用于在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，所述第一时长为所述控制信令的生效时长。
在一种可能的设计中，所述控制模块还用于：
在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传 输之前，获取所述第一时长。
在一种可能的设计中，所述控制信令中包括所述第一时长；
所述控制模块具体用于：
在所述控制信令中获取所述第一时长。
在一种可能的设计中，所述控制模块具体用于：
接收所述网络设备发送的第一信令，所述第一信令中包括所述第一时长；
在所述第一信令中获取所述第一时长。
在一种可能的设计中，所述控制模块具体用于：
从约定协议中获取所述第一时长，其中，所述约定协议中包括所述第一时长。
在一种可能的设计中，
所述第一时长为所述终端设备对应的时长；或者
所述第一时长为无线承载RB所对应的时长，其中，任一个所述控制信令对应至少一个所述RB；或者
所述第一时长为所述控制信令对应的时长。
在一种可能的设计中，
所述第一时长为数值形式的时长；或者
所述第一时长为无穷大；或者
所述第一时长为目标索引值所对应的时长，其中，所述目标索引值为在多个预设时长的指示索引值中选择的索引值。
在一种可能的设计中，所述控制信令为媒体接入控制层MAC控制元素CE。
在一种可能的设计中，所述控制模块具体用于：
根据所述MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体的PDCP重复传输功能状态更新为激活或者去激活，其中，所述目标RB为所述终端设备中配置了所述PDCP重复传输功能的至少一个RB，所述指示信息用于分别指示各所述RLC实体的PDCP重复传输功能状态；
针对任一个所述目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的所述RLC实体，其中，所述目标数量为处于激活状态的所述RLC实体的数量；
所述处于激活状态的各所述RLC实体分别对多份所述PDCP PDU进行传输。
在一种可能的设计中，所述控制模块还用于：
在所述第一时长的时间范围内，实时判断所述终端设备是否接收到网络设备发送的新的控制信令；
若是，则采用所述新的控制信令覆盖当前的控制信令，并在第二时长内，根据所述新的控制信令控制终端设备的PDCP重复传输，所述第二时长为所述新的控制信令的生效时长。
在一种可能的设计中，所述控制模块还用于：
在所述第一时长结束之后，若当前时刻不在任何控制指令的生效时长的时间范围内，则判断所述终端设备是否产生有用于控制所述终端设备的PDCP重复传输的自主控制指令；
若是，则根据所述终端设备产生的自主控制指令控制终端设备的分组数据聚合协议PDCP重复传输。
第三方面，本申请实施例提供一种传输控制设备，包括：
存储器，用于存储程序；
处理器，用于执行所述存储器存储的所述程序，当所述程序被执行时，所述处理器用于执行如上第一方面以及第一方面各种可能的设计中任一所述的方法。
第四方面，本申请实施例提供一种计算机可读存储介质，包括指令，当其在计算机上运行时，使得计算机执行如上第一方面以及第一方面各种可能的设计中任一所述的方法。
本申请实施例提供一种传输控制方法及装置，该方法包括：接收网络设备发送的控制信令。在第一时长内，根据控制信令控制终端设备的分组数据聚合协议PDCP重复传输，第一时长为控制信令的生效时长。通过在第一时长内根据控制信令控制终端设备的PDCP重复传输，从而使得在第一时长内网络设备下发的决定不会被覆盖，从而能够提高资源的利用效率以及总体的系统性能。
附图说明
图1为终端设备和网络设备的交互示意图；
图2为CA场景下的PDCP重复传输模型示意图；
图3为DC场景下的PDCP重复传输模型示意图；
图4为多连接场景下的PDCP重复传输模型示意图；
图5为本申请实施例提供的传输控制方法的流程图一；
图6为本申请实施例提供的传输控制方法的流程图二；
图7为本申请实施例提供的第一时长的作用对象的效果示意图；
图8A为本申请实施例提供的第一时长的实现组合示意图；
图8B为本申请实施例提供的第一时长的第一组合的示意图；
图8C为本申请实施例提供的第一时长的第二组合的示意图；
图9为本申请实施例提供的传输控制方法的流程图三；
图10为本申请实施例提供的传输控制装置的结构示意图；
图11为本申请实施例提供的传输控制设备的硬件结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在介绍本申请提供的传输控制方法之前，首先对PDCP重复传输(PDCP duplication)进行详细介绍，具体的，5G NR(next generation Radio，下一代无线)系统主要支持以下三类业务：eMBB(enhanced Mobile Broadband，增强型宽带通信)、mMTC(massive  MachineType Communications，大量机器类型通信)、URLLC(Ultra-Reliable and Low LatencyCommunications，高可靠低时延通信)。
其中，对于URLLC，由于其对时延和可靠性都有比较高的要求，目前3GPP给出的一种解决方案是引入PDCP duplication(PDCP重复传输)机制，即通过多个路径传输相同的PDCP层PDU(Protocol Data Unit，协议数据单元)，通过多路传输增益提升传输可靠性，并降低传输时延。
在PDCP重复传输的一次具体的实现过程中，在发送端的PDCP层，例如可以将一个PDCP PDU复制成相同的两份并分别下发给两个不同的RLC实体，其中不同的RLC实体可以对应不同的小区(cell)，进而可以分别通过不同的小区进行原始数据的传输和复制数据的传输，如果接收端成功收到原始数据和复制数据，则在接收端的PDCP层对成功收到的相同的两个PDCP PDU，删除其中的一份而只保留一份数据，也就是说，将同一份数据包复制成相同的两份并通过两条不同的链路进行传输，从而提高了数据传输的可靠性，值得说明的是，上述介绍的复制成相同的两份只是示例性的说明，在具体的实现过程中，具体将数据复制多少份可以根据需求进行选择。
具体的，在使用PDCP重复传输提高数据传输的可靠性时，需要首先对RB配置PDCP重复传输功能，其中一个RB对应一个PDCP实体，只有RB配置了PDCP重复传输功能，才能够通过RB对应的多个RLC实体分别对原始的PDCP PDU和复制的PDCP PDU进行传输，下面结合图1对对RB配置PDCP重复传输功能的实现过程进行说明，图1为终端设备和网络设备的交互示意图，如图1所示：
网络设备可以向终端设备发送无线资源控制(Radio Resource Control，RRC)消息，RRC消息可包含RB的PDCP重复传输功能的配置信息，具体的，RRC消息会指示为某个配置了PDCP重复传输功能的RB建立至少一个额外附加的用于重复传输的RLC实体，以使得后续可以分别通过不同的RLC实体对原始的PDCP PDU和复制的PDCP PDU进行传输，在可选的实施例中，RRC消息还会指示RLC实体的小区分组标识(cell group ID)和逻辑通道标识(Logical Channel ID，LCID)；或者，RRC消息还可以为各配置了PDCP重复传输功能的RB设置重复传输功能的初始态(激活或者不激活)。
这里再对RRC消息中包含的配置信息进行简单的介绍，其中duplication的配置信息包含在一条大的RRC消息中，具体的，这个RRC消息可以包含很多个RB的配置信息，也有可能包含了当前的终端设备的所有RB的配置信息，而每一个RB的配置信息包含了很多方面的数据，而用于duplication的功能信息只是配置信息中的一两个字段，当字段出现时代表该RB配置了duplication，不出现则代表该RB没有配置duplication。
另外，参见图1可知，本实施例中的RB可以为数据无线承载(Date Radio Bearer，DRB)或信令无线承载(Signalling Radio Bearer，SRB)，具体的，SRB仅用来传输RRC消息和非接入层(Non-Access Stratum，NAS)消息，而DRB用于承载用户数据，其中，一个RB可以对应一个PDCP实体，其中，无论是SRB还是DRB，PDCP层里的数据都包含两种类型：PDCP Data PDU和PDCP Control PDU，其中PDU代表一个数据单元，其可以理解为一个数据包，而数据包是从上层或下层源源不断地进入到PDCP层的，一旦duplication功能激活，将对所有的进入到PDCP层的PDU进行复制以及分别发送 操作。
因此基于上述介绍，可以理解的是，下文中所介绍的RB可以为DRB，但是本申请中不排除RB可以为SRB的可能性，根据SRB传输的实现方式与DRB类似，因此下文中采用RB进行介绍，共同涵盖两种可能性。
在简单介绍了对RB配置PDCP重复传输功能实现机制之后，下面结合图2和图3对PDCP重复传输的两种不同的应用场景进行说明，具体的，PDCP重复传输对应有两种应用场景，分别是载波聚合(Carrier Aggregation，CA)和双连接(Dual Connectivity，DC)。
图2为CA场景下的PDCP重复传输模型示意图，图3为DC场景下的PDCP重复传输模型示意图。
对于CA场景下的PDCP重复传输模型，如图1所示，PDCP层的一个RB对应一个PDCP实体，用于承载一份PDCP PDU，假设当前的RB对应的RLC实体1和RLC实体2的PDCP重复传输功能都处于激活状态，则RLC实体1和RLC实体2都可以用来传输数据，其中一个RLC实体对应一个逻辑信道(Logical Channel，LCH)，则可以在RLC层通过多个逻辑信道分别进行传输，其中每个LCH对应一个RLC实体，如图2。
对于CA场景下的PDCP重复传输模型，RB对应的多个RLC实体与一个MAC实体相对应，将来自多个不同RLC实体的数据分别映射到不同的载波上进行传输。
值得说明的是，不同的RLC实体对应不同的小区，因为PDCP重复传输的目的是为了多路传输从而提升数据传输的可靠性，因此不同的RLC实体在传输数据时对应的通信小区一定要保证是不同的，参照图2，其中RLC实体1可以对应小区1、小区2，而RLC实体2可以对应小区3、小区4和小区5。
对于DC场景下的PDCP重复传输模型，如图2所示，可以确定的是，DC场景下的PDCP重复传输模型与CA场景下的PDCP重复传输模型类似，唯一不同之处在于，RB对应的多个RLC实体分别映射到不同的MAC实体上，自然可以将来自多个不同RLC实体的数据分别映射到不同载波上进行传输，其余实现方式均类似，此处不再赘述。
在上述图2和图3所介绍的使用场景的基础上，目前还存在一种对PDCP重复传输功能的增强的多连接(Multi-connectivity)的实现方式，下面结合图4对多连接的实现方式进行说明，图4为多连接场景下的PDCP重复传输模型示意图，如图4所示：
在经过至多两个网络节点进行数据传输的前提下，可以同时结合DC场景和CA场景的PDCP重复传输，使得一份数据可以通过多于两条链路进行多于两份复制的传输。
具体的，参见图4，其中PDCP1对应RB1，可以看到RB1的各RLC实体对应于同一个MAC实体1，因此RB1对应的是配置在CA场景下的PDCP重复传输功能；而其中的PDCP2对应RB2，可以看到RB2的RLC7和RLC8对应于一个MAC实体1，RLC1～、RLC2～和RLC3～对应于一个MAC实体2，因此如果是以RLC7和RLC8，或者是以RLC1～、RLC2～和RLC3～来说的话，RB2对应的是配置在CA场景下的PDCP重复传输功能，但是RB2的RLC8和RLC1～对应于两个不同的MAC实体，因此如果是以RLC8和RLC1～来说(或者RLC1～和RLC7等等)，RB2对应的是配置在DC场景下的PDCP重复传输功能。
需要说明的是，不同的MAC实体下对应的小区一定是不同的，同样的，不同的MAC实体所对应的RLC实体也一定是不同的，因此，图4中示出的RLC1和RLC～是完全不 同的RLC实体，以及小区组1和小区组1～也是完全不同的小区，其余的RLC2与RLC2～等也是类似，均是完全不同的，此处不再赘述。
在进行数据传输时，一份数据就可以通过多于两条逻辑信道进行多于两份复制的传输，值得说明的是，结合上述介绍我们可以知道，PDCP1的各RLC实体对应不同的小区组，同时PDCP2的各RLC实体对应不同的小区组，但是PDCP1的RLC实体和PDCP2的RLC实体所对应的小区组中的小区可以部分重合或完全重合，即只要保证针对同一份数据进行传输是对应的是不同的小区即可，参照图4，PDCP1的各RLC实体对应的小区组都是不同的，PDCP2的各RLC实体对应的小区组也都是不同的，但是PDCP1的RLC实体1对应的小区组1和PDCP2的RLC实体7对应的小区组7中的小区可以部分重合或完全重合。
在通过上述实施例中对PDCP重复传输的作用机制和使用场景进行介绍之后，需要说明的是，要实现PDCP重复传输，还需要控制RLC实体的PDCP重复传输功能的状态，其中状态可以为激活或者未激活，当RLC实体的PDCP重复传输功能状态为激活时，表明可以通过当前的RLC实体传输数据，当RLC实体的PDCP重复传输功能状态为未激活时，表明不可以通过当前的RLC实体传输数据。
具体的，目前对PDCP重复传输的控制机制主要存在以下两种实现方式：
1)网络动态控制机制
网络设备向终端设备发送控制信令，在控制信令中包含一个位图(bitmap)，位图中包括多个位(bit)，每一个bit分别对应配置了PDCP功能的一个RB，在一种可能的实现方式中，其中某个RB所对应的bit位指示为1，则代表激活该RB，所对应的bit位指示为0，则代表去激活该RB；或者，在另一种可能的实现方式中，0表示去激活，1表示去激活。
同时，配置了PDCP功能的RB所对应的所有RLC实体都有对应的各自bit来指示其激活还是去激活，在一种可能的实现方式中，1表示激活，0表示去激活；或者，还可以采用至少一个bit指示需要激活的RLC实体，例如针对RB1下发的控制信令中包括：001、010以及100，则表示当前需要激活的RLC实体是RLC1、RLC2以及RLC4，其余各种可能的实现方式还可以根据实际需求进行选择，例如还可以在控制信令中采用至少一个bit指示需要去激活的RLC实体，其余的实现方式此处不再赘述。
其中，某个配置了PDCP重复传输功能RB激活之后，PDCP层会对数据包进行复制操作，并将相同的两份PDCP PDU分别发送给这个RB所对应的两个RLC实体，这两个RLC实体将会分别对原始的PDCP PDU和复制的PDCP PDU进行发送。
另外，某个RB被去激活之后，其所对应的逻辑信道(Logical Channel，LCH)与载波之间的对应限制就被取消，发送端PDCP层不会对新数据包进行复制操作，并且向原始的RLC实体发送新数据，而不向附加的RLC实体发送新数据，发送端PDCP实体会通知附加的RLC实体取消掉附加LCH中的缓存数据，可以理解的是，也相当于附加RLC实体被去激活。
2)终端设备基于门限的自主控制机制
网络设备向终端设备提供用于控制激活或者去激活的控制门限(或者控制条件)，终端设备对控制门限所对应的各变量进行测量，如果网络设备配置的门限值被满足， 则终端设备就可以自行对相应的RLC实体进行激活/去激活操作。
其中，控制门限例如可以包括以下几种:
A、信道状态
B、MAC层混合式自动重传请求(Hybrid Automatic Repeat Request，HARQ)，或者RLC自动重传请求(AutomaticRepeatreQuest，ARQ)反馈
C、丢包率
D、包传输延时
以上述的控制门限B为例进行说明，假设当前终端设备检测到的丢包率大于预设丢包率，则可以确定当前RLC逻辑信道频繁发生丢包事件，则表明当前的RLC实体不适合进行数据传输，则将当前的RLC实体的PDCP重复传输的状态设置为去激活；再以上述的控制门限A为例进行说明，假设当前的信道状态为预设状态，则可以确定当前的RLC逻辑信道适合进行数据的传输，从而将当前RLC实体的PDCP重复传输的状态设置为激活，其中预设状态例如可以为L1、或者L3 filtered RSRP/RSRQ threshold、或者path loss等，可以理解的是，上述的控制门限只是示例性的介绍，并非唯一限定，控制门限的具体实现方式可以根据实际需求进行设定，同时控制门限可以选择其中的一种，或者任意种的组合等，本实施例对此均不作限定。
基于上述两种控制机制的介绍，需要说明的是，网络动态控制机制是UE的必要特征，即其不需要经过任何配置就是可以实现的，但是终端设备基于门限的自主控制机制是补充的可配置的机制，因此网络设备可以为终端设备选择性的配置该控制机制，同时网络设备还可以通过RRC消息或者其他控制信令来使得该控制机制有效或者无效。
若某个配置了PDCP重复传输功能的DRB配置了终端设备基于门限的自主控制机制，则网络设备下发的控制指令和终端设备自主产生的控制指令是会互相覆盖的，因为终端设备自主产生的控制指令可能只考虑到了自身的情况，但是网络设备下发的控制指令可能统筹了整个网络的情况，则网络设备会希望自己通过控制信令下发的决定在一定的时间内是有效的，不要被覆盖或者不要很快地被覆盖，很快地覆盖网络设备下发的控制指令会降低资源的利用效率以及总体的系统性能。
基于上述问题，本申请提供了一种传输控制方法，以提高资源的利用效率以及总体的系统性能，下面结合图5对本申请提供的传输控制方法进行详细介绍，图5为本申请实施例提供的传输控制方法的流程图一，如图5所示，该方法包括：
S501、接收网络设备发送的控制信令。
在本实施例中，网络设备可以包括但不限于室分远端节点、无线局域网络接入点(Wireless Local Area Networks Access Point，WLAN AP)、基站等，其中网络设备的具体实现方式可以根据实际需求进行选择，只要网络设备可以用于进行网络传输，并且能够发送控制信令即可。
同时，网络设备发送的控制信令用于指示终端设备的PDCP重复传输功能的状态，其中控制信令例如可以为媒体接入控制层(Medium Access Control，MAC)控制元素(Control Element，CE)，或者还可以为RRC消息等任意形式的可以用于指示状态的信令消息，本实施例对此不做特别限制。
作为示例，终端设备可以是计算机设备、平板电脑或智能手机等，或者还可以是 移动终端(Mobile Terminal)或移动终端设备、移动电话(或称为“蜂窝”电话)、车载处理装置或具有可移动性的计算机等，可移动性的计算机例如，便携式计算机、袖珍式计算机或手持式计算机等，对此，本申请不作限制。
S502、在第一时长内，根据控制信令控制终端设备的分组数据聚合协议PDCP重复传输，第一时长为控制信令的生效时长。
在本实施例中，针对控制信令设置有第一时长，在第一时长内，根据控制信令控制终端设备的分组数据聚合协议PDCP重复传输，也就是说在第一时长内终端设备不会产生控制指令，或者终端设备产生的控制指令并不会起作用，因此在第一时长内，网络设备发送的控制信息时不会被覆盖的。
在一种可能的实现方式中，可以为控制信令设置计时器，其中计时器携带有第一时长，第一时长用于指示控制信令的生效时长，在控制信令的生效时长内，终端设备基于门限的自主控制机制被无效，因此在第一时长内，终端设备不会自主产生控制指令，自然也不会覆盖网络设备的控制信令的决定，从而能够提高资源的利用效率以及总体的系统性能。
本申请实施例提供的传输控制方法，包括：接收网络设备发送的控制信令。在第一时长内，根据控制信令控制终端设备的分组数据聚合协议PDCP重复传输，第一时长为控制信令的生效时长。通过在第一时长内根据控制信令控制终端设备的PDCP重复传输，从而使得在第一时长内网络设备下发的决定不会被覆盖，从而能够提高资源的利用效率以及总体的系统性能。
在上述实施例的基础上，本申请中的控制信令可以为MAC CE，则下面以控制信令具体为MAC CE，再结合图6至图8对本申请提供的传输控制方法再进行进一步地详细介绍，图6为本申请实施例提供的传输控制方法的流程图二，图7为本申请实施例提供的第一时长的作用对象的效果示意图，图8A为本申请实施例提供的第一时长的实现组合示意图，图8B为本申请实施例提供的第一时长的第一组合的示意图，图8C为本申请实施例提供的第一时长的第二组合的示意图。
如图6所示，该方法包括：
S601、接收MAC CE。
其中，S601的实现方式与S501相同，只是S601中的控制信令具体为MAC CE，因此此处对S601的详细实现方式不再进行赘述。
S602、获取第一时长。
在本实施例中，第一时长的获取可用从获取途径、作用对象以及实现形式上分别进行介绍，需要说明的是，本实施例中是具体结合控制信令的一种实现方式“MAC CE”进行的介绍，控制信令的其余各种可能的实现方式类似，本文不再赘述，因此下文中的MAC CE并不是对控制信令的唯一限定。
首先对第一时长的获取途径进行说明：
在一种可能的实现方式中，MAC CE中包括第一时长，则在控制信令中获取第一时长。具体的，第一时长可以是添加在MAC CE中的字段，或者是MAC CE携带的信息等。
在另一种可能的实现方式中，接收网络设备发送的第一信令，第一信令中包括所述第一时长，在第一信令中获取所述第一时长。具体的，第一信令是独立于MAC CE 的单独的信令，也就是说网络设备发送了单独的信令消息指示MAC CE的生效时长。
在又一种可能的实现方式中，从约定协议中获取第一时长，其中，约定协议中包括第一时长。具体的，约定协议是网络设备和终端设备预先约定好的协议，在约定协议中包括了第一时长。
在介绍完第一时长的获取途径之后，接下来结合图7对第一时长的作用对象进行介绍：
在一种可能的实现方式中，第一时长为所述终端设备对应的时长，也就是说整个终端设备采用相同的第一时长，可参照图7最左侧的进行理解，其中终端设备中所包括的RB、每一个RB对应的各个RLC实体均对应相同的第一时长，在图7中用灰色阴影标识相同的第一时长。
在另一种可能的实现方式中，第一时长为RB所对应的时长，其中，任一个所述控制信令对应至少一个RB，假设当前的MAC CE对应两个RB，则MAC CE中例如可以采用前N个bit指示RB1,采用后M个bit指示RB2，其中N和M是整数，则RB1可以采用一个第一时长，RB2可以采用另一个第一时长，可以参照图7中间理解只要保证一个RB是的第一时长是相同的即可，值得说明的是，此处所介绍的RB是配置了PDCP重复传输功能的RB。
在又一种可能的实现方式中，第一时长为控制信令对应的时长，同样的，假设当前的MAC CE对应两个RB，因为在当前的实现方式中，需要使得第一时长为控制信令对应的时长，控制信令所指示的所有的RB都对应相同的第一时长，可以参照图7最右侧理解，则RB1和RB2采用同一个第一时长，同样的，此处所介绍的RB是配置了PDCP重复传输功能的RB。
在介绍完第一时长的获取途径之后，接下来对第一时长的实现形式进行介绍：
在一种可能的实现方式中，第一时长为数值形式的时长，例如直接为数值90，第一时长的单位可以为预先约定好的，也可以为实时发送的，例如90毫秒。
在另一种可能的实现方式中，第一时长为无穷大，当设置第一时长为无穷大时，则表明当前的MAC CE所对应的控制指令永久生效，也就是说当前RB对应的终端设备基于门限的自主控制机制被永久禁止了。
在又一种可能的实现方式中，第一时长为目标索引值所对应的时长，其中，目标索引值为在多个预设时长的指示索引值中选择的索引值，例如可以预先设置有多个预设时长，如3秒、90毫秒、15分钟等，其中每个预设时长均对应各自的指示索引值，则在需要的时候，直接选择索引值以得到目标索引值，在获取第一时长时，获取到的内容也是目标索引值，其次再获取目标索引值对应的时长即可。
本领域技术人员可以理解，上述对第一时长的获取途径、作用对象以及实现形式所进行的介绍均为示例性的说明，获取途径、作用对象以及实现形式的具体实现方式并非只有上述所介绍的几种，其中各种可能的实现方式均可以根据实际需求进行选择，本实施例不再赘述。
值得说明的是，本实施例中的第一时长的获取途径、作用对象以及实现形式的各种可能的实现方式均可以三个部分中各选择一个进行任意组合，其中组合的方式可以参见图8A，下面将三个部分结合在一起对获取第一时长的几种可能的实现方式进行说 明：
1)如图8B所示
第一时长为终端设备对应的时长，其是数值形式的时长，同时MAC CE中包括第一时长，则获取第一时长时从MAC CE中获取，则表明在MAC CE中携带有数值形式的时长字段，终端设备在接收到MAC CE后，从MAC CE中获取数值形式的时长字段，并使得整个终端设备均采用该第一时长；
2)如图8C所示
第一时长为控制信令对应的时长，其是目标索引值所对应的时长，同时终端设备接收网络设备发送的第一信令，第一信令中包括第一时长，则在第一信令中获取第一时长，在这种实现方式中，网络设备发送的第一信令所包括的内容是目标索引值，终端设备在接收到第一信令之后，首先获取到目标索引值，其次根据目标索引值在预设时长的指示索引值中进行查找，从而获取到目标索引值对应的第一时长，可以理解的是，预设时长是网络设备和终端设备预先约定好的，因此终端设备可以根据目标索引值确定第一时长，同时该第一时长作用于控制信令所对应的所有RB。
其余各种可能的实现方式都可根据图8左侧的组合得到，本实施例对此不做限定，若第一时长的三个部分还扩展出其余的实现方式，则可以对应扩展出更多的组合。
S603、根据MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体的PDCP重复传输功能状态更新为激活或者去激活，其中，目标RB为终端设备中配置了PDCP重复传输功能的至少一个RB，指示信息用于分别指示各RLC实体的PDCP重复传输功能状态。
其中，MAC CE中包指示信息，指示信息用于分别指示各RLC实体的PDCP重复传输功能状态，其中状态可以为激活或者未激活，参照上述实施例中所进行的介绍，指示信息中例如可用1指示激活RLC实体，用0标识去激活RLC实体；或者，还可以采用01编码的二进制所对应的十进制数字指示激活或者去激活的RLC实体，需要强调的是，本实施例中每一个RLC实体都对应有各自的指示信息。
具体的，将终端设备中配置了PDCP重复传输功能的至少一个RB确定为目标RB，从而能够根据MAC CE所包括的指示信息，将目标RB所对应的RLC实体的PDCP重复传输功能状态更新为激活或者去激活，以便后续进行数据传输。
S604、针对任一个目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的RLC实体，其中，目标数量为处于激活状态的RLC实体的数量。
每一个目标RB对应传输一份PDCP PDU，下面针对其中任一个目标RB进行说明，当前目标RB中处于激活状态的RLC实体的数量为目标数量，其中处于激活状态的每一个RLC实体都可以用来进行数据传输，则将PDCP PDU复制目标数量份，并分别下发给处于激活状态的RLC实体。
S605、在第一时长内，处于激活状态的各RLC实体分别对多份PDCP PDU进行传输。
具体的，处于激活状态的各RLC实体分别对多份PDCP PDU进行传输，该传输的控制指令的网络设备下发的，因此其生效时长是第一时长。
本申请实施例提供的传输控制方法，包括：接收MAC CE发送的控制信令。获取第一时长。根据MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体 的PDCP重复传输功能状态更新为激活或者去激活，其中，目标RB为终端设备中配置了PDCP重复传输功能的至少一个RB，指示信息用于分别指示各RLC实体的PDCP重复传输功能状态。针对任一个目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的RLC实体，其中，目标数量为处于激活状态的RLC实体的数量。在第一时长内，处于激活状态的各RLC实体分别对多份PDCP PDU进行传输。通过在第一时长范围内根据MAC CE控制终端设备的PDCP重复传输，从而能够提高资源的利用效率以及总体的系统性能，同时通过根据各种不同的组合实现获取第一时长，从而扩展了第一时长的方式，增强其适用性和普遍性。
在上述实施例的基础上，当控制信令在第一时长的时间范围内生效时，网络设备根据当前的网络状态、设备连接状态等还可能产生新的控制信令，以使得从总体的资源分配的角度，重新调整RB激活的RLC实体，下面结合图9对这种情况进行说明，图9为本申请实施例提供的传输控制方法的流程图三。
如图9所示，该方法包括：
S901、在第一时长的时间范围内，实时判断终端设备是否接收到网络设备发送的新的控制信令，若是，则执行S902，若否，则执行S903。
在本实施例中，仅考虑在第一时长的时间范围内是否接收到新的控制指令，因为在第一时长的时间范围之外所接收到的控制指令实质上和步骤501中的控制信令是一样的，其都可直接指示。
S902、采用新的控制信令覆盖当前的控制信令，并在第二时长内，根据新的控制信令控制终端设备的PDCP重复传输，第二时长为新的控制信令的生效时长。
具体的，若是确定接收到网络设备发送的新的控制信令，因为新的控制指令是根据当前的网络状态最新确定的，网络设备下发的新的控制指令必定是更加符合当前的资源分配情况的，因此采用新的控制信令覆盖当前的控制信令，并在第二时长内，根据新的控制信令控制终端设备的PDCP重复传输，第二时长为新的控制信令的生效时长，其中新的控制指令与原始的控制指令的实现方式类似，此处不再赘述。
其中，采用新的控制信令覆盖当前的控制信令课可以理解为在接收到新的控制指令时，原始的控制指令的第一时长就已经结束了，此时直接根据新的控制指令控制终端设备的PDCP重复传输。
S903、继续根据原始的控制信令控制终端设备的PDCP重复传输。
本申请实施例提供的传输控制方法，在第一时长的时间范围内，确定终端设备接收到网络设备发送的新的控制信令时，采用新的控制信令覆盖当前的控制信令，并在第二时长内，根据新的控制信令控制终端设备的PDCP重复传输，第二时长为新的控制信令的生效时长，以使得整体的资源分配情况更加合理，增加整体系统的传输效率。
在上述实施例的基础上，在第一时长结束之后，配置有终端设备基于门限的自主控制机制的终端设备就可以自主产生控制指令了，具体的，若当前时刻不在任何控制指令的生效时长的时间范围内，则判断终端设备是否产生有用于控制终端设备的PDCP重复传输的自主控制指令，若是，则根据终端设备产生的自主控制指令控制终端设备的分组数据聚合协议PDCP重复传输。
具体的，当终端设备对控制门限所对应的各变量进行测量，确定测量值满足控制 门限时，则产生用于控制终端设备的PDCP重复传输的自主控制指令，本实施例在网络设备没有控制终端设备的PDCP重复传输时，采用终端设备基于门限的自主控制机制对PDCP重复传输功能进行控制，从而能够实现PDCP重复传输的灵活性。
图10为本申请实施例提供的传输控制装置的结构示意图。如图10所示，该装置100包括：接收模块1001以及控制模块1003。
接收模块1001，用于接收网络设备发送的控制信令；
控制模块1002，用于在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，所述第一时长为所述控制信令的生效时长。
在一种可能的设计中，所述控制模块1002还用于：
在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输之前，获取所述第一时长。
在一种可能的设计中，所述控制信令中包括所述第一时长；
所述控制模块1002具体用于：
在所述控制信令中获取所述第一时长。
在一种可能的设计中，所述控制模块1002具体用于：
接收所述网络设备发送的第一信令，所述第一信令中包括所述第一时长；
在所述第一信令中获取所述第一时长。
在一种可能的设计中，所述控制模块1002具体用于：
从约定协议中获取所述第一时长，其中，所述约定协议中包括所述第一时长。
在一种可能的设计中，
所述第一时长为所述终端设备对应的时长；或者
所述第一时长为无线承载RB所对应的时长，其中，任一个所述控制信令对应至少一个所述RB；或者
所述第一时长为所述控制信令对应的时长。
在一种可能的设计中，
所述第一时长为数值形式的时长；或者
所述第一时长为无穷大；或者
所述第一时长为目标索引值所对应的时长，其中，所述目标索引值为在多个预设时长的指示索引值中选择的索引值。
在一种可能的设计中，所述控制信令为媒体接入控制层MAC控制元素CE。
在一种可能的设计中，所述控制模块1002具体用于：
根据所述MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体的PDCP重复传输功能状态更新为激活或者去激活，其中，所述目标RB为所述终端设备中配置了所述PDCP重复传输功能的至少一个RB，所述指示信息用于分别指示各所述RLC实体的PDCP重复传输功能状态；
针对任一个所述目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的所述RLC实体，其中，所述目标数量为处于激活状态的所述RLC实体的数量；
所述处于激活状态的各所述RLC实体分别对多份所述PDCP PDU进行传输。
在一种可能的设计中，所述控制模块1002还用于：
在所述第一时长的时间范围内，实时判断所述终端设备是否接收到网络设备发送的新的控制信令；
若是，则采用所述新的控制信令覆盖当前的控制信令，并在第二时长内，根据所述新的控制信令控制终端设备的PDCP重复传输，所述第二时长为所述新的控制信令的生效时长。
在一种可能的设计中，所述控制模块1002还用于：
在所述第一时长结束之后，若当前时刻不在任何控制指令的生效时长的时间范围内，则判断所述终端设备是否产生有用于控制所述终端设备的PDCP重复传输的自主控制指令；
若是，则根据所述终端设备产生的自主控制指令控制终端设备的分组数据聚合协议PDCP重复传输。
本实施例提供的装置，可用于执行上述方法实施例的技术方案，其实现原理和技术效果类似，本实施例此处不再赘述。
图11为本申请实施例提供的传输控制设备的硬件结构示意图，如图11所示，本实施例的传输控制设备110包括：处理器1101以及存储器1102；其中
存储器1102，用于存储计算机执行指令；
处理器1101，用于执行存储器存储的计算机执行指令，以实现上述实施例中传输控制方法所执行的各个步骤。具体可以参见前述方法实施例中的相关描述。
可选地，存储器1102既可以是独立的，也可以跟处理器1101集成在一起。
当存储器1102独立设置时，该传输控制设备还包括总线1103，用于连接所述存储器1102和处理器1101。
本申请实施例还提供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计算机执行指令，当处理器执行所述计算机执行指令时，实现如上传输控制设备所执行的传输控制方法。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，所述模块的划分，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，例如多个模块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，装置或模块的间接耦合或通信连接，可以是电性，机械或其它的形式。
上述以软件功能模块的形式实现的集成的模块，可以存储在一个计算机可读取存储介质中。上述软件功能模块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)或处理器(英文：processor)执行本申请各个实施例所述方法的部分步骤。
应理解，上述处理器可以是中央处理单元(英文：Central Processing Unit，简称：CPU)，还可以是其他通用处理器、数字信号处理器(英文：Digital Signal Processor，简称：DSP)、专用集成电路(英文：Application Specific Integrated Circuit，简称：ASIC)等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理 器等。结合申请所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
存储器可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如至少一个磁盘存储器，还可以为U盘、移动硬盘、只读存储器、磁盘或光盘等。
总线可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示，本申请附图中的总线并不限定仅有一根总线或一种类型的总线。
上述存储介质可以是由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。存储介质可以是通用或专用计算机能够存取的任何可用介质。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (24)

  1. 一种传输控制方法，其特征在于，包括：
    接收网络设备发送的控制信令；
    在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，所述第一时长为所述控制信令的生效时长。
  2. 根据权利要求1所述的方法，其特征在于，在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输之前，还包括：
    获取所述第一时长。
  3. 根据权利要求2所述的方法，其特征在于，所述控制信令中包括所述第一时长；
    所述获取所述第一时长，包括：
    在所述控制信令中获取所述第一时长。
  4. 根据权利要求2所述的方法，其特征在于，所述获取所述第一时长，包括：
    接收所述网络设备发送的第一信令，所述第一信令中包括所述第一时长；
    在所述第一信令中获取所述第一时长。
  5. 根据权利要求2所述的方法，其特征在于，所述获取所述第一时长，包括：
    从约定协议中获取所述第一时长，其中，所述约定协议中包括所述第一时长。
  6. 根据权利要求1-5任一项所述的方法，其特征在于，
    所述第一时长为所述终端设备对应的时长；或者
    所述第一时长为无线承载RB所对应的时长，其中，任一个所述控制信令对应至少一个所述RB；或者
    所述第一时长为所述控制信令对应的时长。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，
    所述第一时长为数值形式的时长；或者
    所述第一时长为无穷大；或者
    所述第一时长为目标索引值所对应的时长，其中，所述目标索引值为在多个预设时长的指示索引值中选择的索引值。
  8. 根据权利要求1所述的方法，其特征在于，所述控制信令为媒体接入控制层MAC控制元素CE。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，包括：
    根据所述MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体的PDCP重复传输功能状态更新为激活或者去激活，其中，所述目标RB为所述终端设备中配置了所述PDCP重复传输功能的至少一个RB，所述指示信息用于分别指示各所述RLC实体的PDCP重复传输功能状态；
    针对任一个所述目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的所述RLC实体，其中，所述目标数量为处于激活状态的所述RLC实体的数量；
    所述处于激活状态的各所述RLC实体分别对多份所述PDCP PDU进行传输。
  10. 根据权利要求1-9任一项所述的方法，其特征在于，所述方法还包括：
    在所述第一时长的时间范围内，实时判断所述终端设备是否接收到网络设备发送的新的控制信令；
    若是，则采用所述新的控制信令覆盖当前的控制信令，并在第二时长内，根据所述新的控制信令控制终端设备的PDCP重复传输，所述第二时长为所述新的控制信令的 生效时长。
  11. 根据权利要求1所述的方法，其特征在于，当第一时长结束之后，所述方法还包括：
    若当前时刻不在任何控制指令的生效时长的时间范围内，则判断所述终端设备是否产生有用于控制所述终端设备的PDCP重复传输的自主控制指令；
    若是，则根据所述终端设备产生的自主控制指令控制终端设备的分组数据聚合协议PDCP重复传输。
  12. 一种传输控制装置，其特征在于，包括：
    接收模块，用于接收网络设备发送的控制信令；
    控制模块，用于在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输，所述第一时长为所述控制信令的生效时长。
  13. 根据权利要求12所述的装置，其特征在于，所述控制模块还用于：
    在第一时长内，根据所述控制信令控制终端设备的分组数据聚合协议PDCP重复传输之前，获取所述第一时长。
  14. 根据权利要求13所述的装置，其特征在于，所述控制信令中包括所述第一时长；
    所述控制模块具体用于：
    在所述控制信令中获取所述第一时长。
  15. 根据权利要求13所述的装置，其特征在于，所述控制模块具体用于：
    接收所述网络设备发送的第一信令，所述第一信令中包括所述第一时长；
    在所述第一信令中获取所述第一时长。
  16. 根据权利要求13所述的装置，其特征在于，所述控制模块具体用于：
    从约定协议中获取所述第一时长，其中，所述约定协议中包括所述第一时长。
  17. 根据权利要求12-16任一项所述的装置，其特征在于，
    所述第一时长为所述终端设备对应的时长；或者
    所述第一时长为无线承载RB所对应的时长，其中，任一个所述控制信令对应至少一个所述RB；或者
    所述第一时长为所述控制信令对应的时长。
  18. 根据权利要求12-17任一项所述的装置，其特征在于，
    所述第一时长为数值形式的时长；或者
    所述第一时长为无穷大；或者
    所述第一时长为目标索引值所对应的时长，其中，所述目标索引值为在多个预设时长的指示索引值中选择的索引值。
  19. 根据权利要求12所述的装置，其特征在于，所述控制信令为媒体接入控制层MAC控制元素CE。
  20. 根据权利要求19所述的装置，其特征在于，所述控制模块具体用于：
    根据所述MAC CE所包括的指示信息，将目标RB所对应的无线链路控制RLC实体的PDCP重复传输功能状态更新为激活或者去激活，其中，所述目标RB为所述终端设备中配置了所述PDCP重复传输功能的至少一个RB，所述指示信息用于分别指示各所述RLC实体的PDCP重复传输功能状态；
    针对任一个所述目标RB，将PDCP协议数据单元PDU复制目标数量份并分别下发给处于激活状态的所述RLC实体，其中，所述目标数量为处于激活状态的所述RLC实体的数量；
    所述处于激活状态的各所述RLC实体分别对多份所述PDCP PDU进行传输。
  21. 根据权利要求12-20任一项所述的装置，其特征在于，所述控制模块还用于：
    在所述第一时长的时间范围内，实时判断所述终端设备是否接收到网络设备发送的新的控制信令；
    若是，则采用所述新的控制信令覆盖当前的控制信令，并在第二时长内，根据所述新的控制信令控制终端设备的PDCP重复传输，所述第二时长为所述新的控制信令的生效时长。
  22. 根据权利要求12所述的装置，其特征在于，所述控制模块还用于：
    在所述第一时长结束之后，若当前时刻不在任何控制指令的生效时长的时间范围内，则判断所述终端设备是否产生有用于控制所述终端设备的PDCP重复传输的自主控制指令；
    若是，则根据所述终端设备产生的自主控制指令控制终端设备的分组数据聚合协议PDCP重复传输。
  23. 一种传输控制设备，其特征在于，包括：
    存储器，用于存储程序；
    处理器，用于执行所述存储器存储的所述程序，当所述程序被执行时，所述处理器用于执行如权利要求1至11中任一所述的方法。
  24. 一种计算机可读存储介质，其特征在于，包括指令，当其在计算机上运行时，使得计算机执行如权利要求1至14中任一所述的方法。
PCT/CN2020/111424 2019-08-26 2020-08-26 传输控制方法及装置 Ceased WO2021037069A1 (zh)

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