WO2015113259A1 - 一种数据处理方法、通信设备和系统 - Google Patents

一种数据处理方法、通信设备和系统 Download PDF

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Publication number
WO2015113259A1
WO2015113259A1 PCT/CN2014/071774 CN2014071774W WO2015113259A1 WO 2015113259 A1 WO2015113259 A1 WO 2015113259A1 CN 2014071774 W CN2014071774 W CN 2014071774W WO 2015113259 A1 WO2015113259 A1 WO 2015113259A1
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WO
WIPO (PCT)
Prior art keywords
communication device
data packet
data
unlicensed spectrum
unit
Prior art date
Application number
PCT/CN2014/071774
Other languages
English (en)
French (fr)
Inventor
黄曲芳
刘文济
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/071774 priority Critical patent/WO2015113259A1/zh
Priority to CN201480000814.3A priority patent/CN104981999B/zh
Priority to EP14881351.2A priority patent/EP3094032B1/en
Priority to ES14881351T priority patent/ES2773348T3/es
Publication of WO2015113259A1 publication Critical patent/WO2015113259A1/zh
Priority to US15/223,395 priority patent/US10154416B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1887Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1893Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/20Arrangements for detecting or preventing errors in the information received using signal quality detector
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/0252Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H04W28/0263Traffic management, e.g. flow control or congestion control per individual bearer or channel involving mapping traffic to individual bearers or channels, e.g. traffic flow template [TFT]

Definitions

  • the present invention relates to the field of communications, and in particular, to a data processing method, a communication device, and a system.
  • a fixed spectrum allocation policy is widely used. Spectrum allocation is carried out by relevant national agencies or standards organizations, and a part of the spectrum is divided into designated institutions for specific services. Among them, the spectrum assigned to be assigned is called the 4 iced spectrum (l icensed spec trum), and the spectrum not assigned is called unl icensed spec trum.
  • the communication device can communicate with the opposite device through the licensed spectrum and the unlicensed spectrum. Usually, the licensed spectrum is stable and sustainable. Unlicensed spectrum is relatively unstable and unsustainable. Currently, most WiFi (Wi les s Fide) devices operate on unlicensed spectrum.
  • unlicensed frequency includes bands such as 2. 4 _ 2. 4835 GHz and 5. 725 - 5. 850 GHz.
  • unlicensed spectrum resources may be larger than authorized frequency resources. Therefore, the application of Long Term Evolution (LTE) equipment to unlicensed spectrum can effectively utilize unlicensed spectrum resources and increase the amount of data transmission to meet the demand for mobile broadband services.
  • LTE Long Term Evolution
  • Embodiments of the present invention provide a data processing method, a communication device, and a system. When the currently used unlicensed spectrum resource is unavailable, the trigger retransmission can be performed in time.
  • the present invention provides a communication device, including: a sending unit 301 and a processing unit 307. among them,
  • the sending unit (301) is configured to use a non-authorized spectrum resource to transmit a data packet to the receiving node by using a hybrid automatic repeat (HARQ) process;
  • HARQ hybrid automatic repeat
  • the processing unit (307) is configured to determine that the unlicensed spectrum resource used by the sending unit is unavailable, and determine that there is a data packet that is not successfully sent in the HARQ process, and trigger an automatic retransmission for the unsuccessful data packet. (ARQ) retransmission.
  • ARQ automatic retransmission
  • a communication device provided by an embodiment of the present invention, wherein
  • the determining unit (3071) is further configured to determine, or include the RLC data of the AM mode in the unsuccessfully transmitted data packet;
  • the control unit (3075) is configured to determine, in the determining unit, that the unlicensed spectrum resource is unavailable, the data packet that is not successfully sent exists, and determine that the unsuccessfully transmitted data packet includes the AM mode RLC data, or includes After the important data, an ARQ retransmission is triggered for the unsuccessfully transmitted data packet.
  • the processing unit (307) is configured to trigger the ARQ retransmission for the unsuccessfully transmitted data packet, including: notifying the first MAC layer execution unit (500) to send the RLC layer execution unit to the And triggering, by the RLC layer, a first message that performs the ARQ retransmission, where the first message includes first information, where the first information is used to identify a first data packet, where the first data packet is the first MAC layer execution unit ( 500) using the unlicensed spectrum resource to send a successful data packet; the RLC layer execution unit (505) retransmits the first data packet according to the first information included in the first message; the second MAC layer execution unit (507) acquiring the first data packet from the RLC layer execution unit, and transmitting
  • the present invention provides a data processing method, including:
  • the communication device uses the unlicensed spectrum resource to transmit the data packet to the receiving node through the HARQ process; the communication device determines that the unlicensed spectrum resource is unavailable, and the data packet that is not successfully sent exists in the HARQ process; The communication device triggers an ARQ retransmission for the unsuccessfully transmitted data packet.
  • the embodiment of the present invention provides a data processing method, where the communications device triggers the ARQ retransmission for the unsuccessful data packet, and further includes:
  • the embodiment of the present invention provides a data processing method, where the communication device is a user equipment; after the communication device determines that the unlicensed spectrum resource is unavailable, the method further includes: generating a BSR; or, further comprising: determining, related to triggering generation of the BSR The timer is running and then the timer is set to timeout.
  • the embodiment of the present invention provides a data processing method. Before the generating the BSR, the method further includes: determining that the unsuccessful data packet includes a BSR.
  • An embodiment of the present invention provides a data processing method, where the communication device is a user equipment; after the communication device determines that the unlicensed spectrum resource is unavailable, the method further includes: determining that a PHR is included in a data packet that is not successfully sent, and generating a PHR;
  • An embodiment of the present invention provides a data processing method.
  • the communication device triggers the ARQ retransmission for the unsuccessfully transmitted data packet, including:
  • the MAC layer of the unlicensed spectrum resource is used by the communication device to send a first message for triggering the RLC layer to perform the ARQ retransmission to the RLC layer in the communication device, where the first message includes the first information, the first information And configured to identify a first data packet, where the first data packet is a data packet that is not successfully sent by the MAC layer by using the unlicensed spectrum resource;
  • the RLC layer retransmits the first data packet according to the first information included in the first message; the MAC layer that uses the available spectrum resource in the communications device acquires the first data packet from the RLC layer, and sends the first data packet to the pair The end device sends the first data packet.
  • the present invention provides a communication system comprising a base station and a user equipment, wherein the base station uses the communication device, and the user equipment can use the communication device.
  • the data delay problem caused by the unlicensed spectrum resource being unavailable is A corresponding solution is provided to ensure timely and stable data.
  • the communication device uses the unlicensed spectrum resource to transmit a data packet to the receiving node through the HARQ process; the communication device determines that the unlicensed spectrum resource is unavailable, and the HARQ process has a data packet that is not successfully transmitted;
  • the communication device triggers an ARQ retransmission for the unsent packet.
  • the present invention provides a communication system comprising a base station and a user equipment, wherein the base station uses the communication device, and the user equipment can use the communication device.
  • FIG. 1 is a schematic diagram of a data transmission process in the prior art
  • FIG. 2 is a schematic diagram of a data processing method according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a communication device in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a communication device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a communication device according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a communication system in accordance with an embodiment of the present invention.
  • GSM Global Mobile Communications
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the terminal device may also be referred to as a user equipment (User Equipment, referred to as "UE"), a mobile station (Mobile Station, referred to as "MS”), and a mobile terminal (Mobile Terminal).
  • UE User Equipment
  • MS Mobile Station
  • Mobile Terminal Mobile Terminal
  • the terminal device can communicate with one or more core networks via a Radio Access Network ("Radio Access Network"), for example, the terminal device can be a mobile phone (or "cellular" phone)
  • Radio Access Network for example, the terminal device can be a mobile phone (or "cellular" phone)
  • a computer having a mobile terminal, etc. for example, the terminal device may also be a portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile device that exchanges language and/or data with the wireless access network.
  • the base station may be a base station (Base Transceiver Station, referred to as "BTS”) in GSM or CDMA, or may be a base station (NodeB, referred to as "NB") in WCDMA, or may be in LTE.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • eNB Evolved Node B
  • the embodiments of the present invention are not limited to the base station and the user equipment.
  • FIG. 1 shows a transmitting node T, and a receiving node R.
  • Each node includes a Radio Link Control (RLC) entity and a Medium Access Control (MAC) entity.
  • the first RLC entity 101 is used to carry data services.
  • Each RLC entity 101 can schedule at least a first MAC entity 1031 and a second MAC entity 1032.
  • the first MAC entity 1031 is configured to transmit data packets on the licensed spectrum
  • the second MAC entity 1032 is configured to transmit data packets on the unlicensed spectrum.
  • the data packet may contain data and may also contain control information.
  • Each MAC entity in the transmitting node T transmits a data packet to the MAC entity in the receiving node R through a HARQ process.
  • the third MAC entity 2031 is configured to receive data packets on the licensed spectrum
  • the fourth MAC entity 2032 is configured to receive data packets on the unlicensed spectrum.
  • the third, fourth MAC entity sends the received data packet to the second RLC entity 201 in the receiving node R.
  • the RLC entity 201 performs data processing on the received data packet to recover the original data.
  • the receiving node may lose some data packets during the process of receiving the data packet. This requires the receiving node to notify the sending node to resend the data.
  • This process of retransmitting data is embodied in the HARQ process at the MAC layer and as an ARQ process at the RLC layer.
  • the ARQ process includes first transmission and ARQ retransmission.
  • the HARQ process and the ARQ process are two independent retransmission processes. Both HARQ and ARQ processes are automatically retransmitted, with their own maximum number of retransmissions.
  • the receiving node feeds back to the sending node whether the data packet is correctly decoded, that is, an Acknowledgement (ACK) or a Negative Acknowledgement (NACK). If the feedback is NACK, the sending node will retransmit the data. The maximum number of retransmissions that can be made is predetermined, for example 5 times. If the data transmission is not successful when the maximum number of retransmissions is reached, the HARQ entity in the transmitting node stops transmitting the data packet at the MAC layer. Timer.
  • ACK Acknowledgement
  • NACK Negative Acknowledgement
  • the transmitting node When the timer expires, the transmitting node has not received a status report from the receiving node indicating that the data packet was sent successfully, triggering data retransmission at the RLC layer. Each time the RLC layer initiates a retransmission, it is called triggering an ARQ retransmission.
  • the above-mentioned data packet may be a data packet containing data in the AM mode.
  • the RLC entity and the MAC entity in the same node are cooperative relationships. Correspondence between the corresponding ARQ process and the HARQ process. Take the transmitting node T shown in FIG. 1 as an example. There are data packets 1, 2, 3 to be sent in the buffer. Assume that each packet is 100 bytes (Byte). When the second MAC entity 1032 notifies the first RLC entity 101, 150 bytes can be sent on the unlicensed spectrum. Thus, the RLC entity 101 transmits 100 bytes of the packet 1 and the first 50 bytes of the packet 1 to the second MAC entity 1032. The last 50 bytes of packet 2 are waiting for the next available transmission opportunity.
  • the second MAC entity 1032 receives the 150-byte data packet, starts the HARQ process, and sends the fourth packet to the receiving node R. MAC entity 2032.
  • the second RLC entity 201 may find that there is a packet loss when recovering the data packet. For example, the original packets 1, 2, and 3 only recover packets 2, 3, that is, packet 1 is lost.
  • the second RLC entity 201 triggers the ARQ retransmission by transmitting a status message 500 to the first RLC entity 101 to notify the first RLC entity 101 to retransmit the data packet 1.
  • the ARQ may also be triggered within the sending node. Specifically, the MAC layer in the sending node notifies the RLC layer of the sending node, and the data packet 1 is unsuccessful. send.
  • the RLC layer can determine whether there is a packet loss after obtaining the complete packet. For the case in Figure 1, the first 50 bytes of packet 2 have already passed the RLC entity of the receiving node, but it is still not possible to confirm whether packet 2 is lost. Only the last 50 bytes of packet 2 are correctly received before they can be acknowledged. This makes the timer in the ARQ retransmission need to be set longer to wait for all data that should be received. Therefore, the RLC entity contains more data transmission processes and waiting times than the HARQ process retransmission response.
  • the transmitting node requests the receiving node to confirm, and it is possible to trigger the ARQ retransmission. For example, after sending packets 1, 2, and 3, the receiving node finds that packet 3 is lost and then triggers a retransmission. Obviously, such a wait is even longer.
  • the above HARQ and/or ARQ retransmission is triggered whenever the unlicensed spectrum is unavailable. Therefore, the delay in data transmission is further enhanced. The required data cannot be transmitted in time, and even affects the validity of the data transmission.
  • the unlicensed spectrum becomes unavailable from available during packet transmission.
  • the following examples are given.
  • the communication device that has been using the unlicensed spectrum and the peer device have a good life cycle, The communication device no longer has the right to use the unlicensed spectrum, and the unlicensed spectrum is not available for the communication device. In short, as long as the communication device is unable to use an unlicensed spectrum, the unlicensed spectrum is not available to the communication device.
  • the following embodiments of the present invention provide a corresponding solution to the problem that the above unlicensed spectrum may be unavailable and cause data transmission delay.
  • a communication device according to an embodiment of the present invention is further provided below.
  • a communication device which may be a user equipment, or may be a network device such as a base station on a network side.
  • the communication device may include: a sending unit 301 and a processing unit 307, where
  • the sending unit 301 is configured to use a non-authorized spectrum resource to transmit a data packet to the receiving node by using a HARQ process;
  • the processing unit 307 is configured to determine that the unlicensed spectrum resource used by the sending unit is unavailable, and determine that there is a data packet that is not successfully sent in the HARQ process, and trigger an ARQ retransmission for the unsuccessful data packet.
  • the communication device when the unlicensed spectrum is unavailable, the communication device itself actively triggers the ARQ retransmission.
  • This has the following advantages: The communication device no longer passively waits for the acknowledgment message or status report sent by the receiving node, becomes passive and active, avoids the waiting time before the receiving node sends the acknowledgment message, and does not need to pass the HARQ of the MAC layer of the communication device itself.
  • the process timeout triggers the ARQ retransmission at the RLC layer, but selects the available spectrum resources for transmission directly in the initial stage of resource scheduling, thereby shortening the waiting time.
  • the processing unit 307 may further determine that the unsuccessfully transmitted data packet includes the AM mode RLC data or contains important data. .
  • the sending unit 301 transmits the first data packet to the receiving node by using the licensed spectrum resource, where the first data packet includes important data; wherein the important data is pre-defined, or
  • the side device is configured and notified to the communication device.
  • the important data may include at least one of the following data: Time Advance Command (TAC), SCel 1 active command, SCell deactive command, Discontinuous Reception (DRX) MAC vacant unit, Buffer Status Report (BSR) ), Power Headroom Report (PHR), RLC status report, UE Content Resolution Resolution, RRC message.
  • TAC Time Advance Command
  • SCel 1 active command SCell deactive command
  • DRX Discontinuous Reception
  • BSR Buffer Status Report
  • PHR Power Headroom Report
  • RLC status report UE Content Resolution Resolution
  • RRC message may include at least one of the following data: Time Advance Command (TAC), SCel 1 active command, SCell deactive command, Discontinuous Reception (DRX) MAC vacant unit, Buffer Status Report (BSR) ), Power Headroom Report (PHR), RLC status report, UE Content Resolution Resolution, RRC message.
  • the processing unit 307 may include a determining unit 3071 and a control unit 3075, wherein
  • the determining unit 3071 is configured to determine that the unlicensed spectrum resource used by the sending unit is unavailable, and determine that there is a data packet that is not successfully sent in the HARQ process;
  • the control unit 3075 is configured to: after the determining unit determines that the unlicensed spectrum resource is unavailable, and after the unsuccessfully transmitted data packet, triggering the ARQ retransmission for the unsuccessful data packet.
  • the determining unit 3071 is further configured to determine, or include the RLC data of the AM mode in the unsuccessfully transmitted data packet;
  • the control unit 3075 is configured to determine, in the determining unit, that the unlicensed spectrum resource is unavailable, the data packet that is not successfully sent exists, and determine that the unsuccessfully transmitted data packet includes the AM mode RLC data, or includes the important After the data, an ARQ retransmission is triggered for the unsuccessfully transmitted data packet.
  • the above-mentioned determination of the data type in the data packet, and determining the effect of triggering the ARQ retransmission according to the data type, is that when the important data is detected, the actively triggered ARQ transmission process enhances the timely response to the important data, thereby further enhancing the data transmission. Timeliness and stability.
  • a communication device when the communication device is a user equipment UE;
  • the control unit 3075 is further configured to generate a BSR; or, further, to set the timer to a timeout after determining that a timer related to triggering the generation of the BSR is running.
  • the control unit 3075 is further configured to generate a BSR after the determining unit 3071 determines that the unsuccessful data packet includes the BSR; or Further, after the determining unit 3071 determines that the unsuccessfully transmitted data packet includes the BSR, and determines that the timer related to triggering the generated BSR is running, the timer is used. Set to timeout.
  • a communication device when the communication device is a user equipment UE,
  • the control unit 3075 is further configured to: after the determining unit 3071 determines that the PHR is not successfully sent, the PHR is generated;
  • control unit 3075 is further configured to set the timer to stop after the determining unit 3071 determines that the timer associated with triggering the generation of the PHR is running.
  • the above-mentioned processing schemes for the BSR and the PHR can effectively prevent the BSR and PHR data from being retransmitted due to cancellation of the MAC PDU, thereby reducing the probability of BSR and PHR loss, and improving the stability of the system. .
  • the above-mentioned settings for the timer can create conditions for the triggering of the BSR and the PHR, further ensuring the timeliness and effectiveness of data transmission.
  • the communication device may further include:
  • a first MAC layer performing unit 500 configured to perform a HARQ process by using the unlicensed spectrum resource, and an RLC layer executing unit 505, configured to perform RLC retransmission;
  • the second MAC layer execution unit 507 is configured to perform the HARQ process by using the available spectrum resources.
  • the processing unit 307 is configured to trigger the ARQ retransmission for the unsuccessfully transmitted data packet, including: notifying the first MAC layer execution unit 500
  • the RLC layer execution unit sends a first message for triggering the RLC layer to perform the ARQ retransmission, where the first message includes first information, where the first information is used to identify the first data packet, where the first data packet is
  • the first MAC layer execution unit 500 uses the unlicensed spectrum resource to not send a successful data packet;
  • the RLC layer execution unit 505 retransmits the first data packet according to the first information included in the first message
  • the second MAC layer execution unit 507 acquires the first data packet from the RLC layer execution unit, and sends the first data packet to the receiving node through the sending unit 301.
  • the processing unit 307 determines that the unlicensed spectrum resource is unavailable, and may include any one of the following:
  • the processing unit 307 determines that the unlicensed spectrum resource is occupied by other devices, and determines that the unlicensed spectrum resource is unavailable; The processing unit 307 detects that the available time of the unlicensed spectrum resource expires, and determines that the unlicensed spectrum resource is unavailable.
  • the processing unit 307 receives a message that the unlicensed spectrum resource is unavailable from the network node, and determines that the unlicensed spectrum resource is unavailable according to the message.
  • the transmitting unit 301 transmits the important data only in the authorized spectrum.
  • a data processing method including:
  • the communication device uses the unlicensed spectrum resource to transmit a data packet to the receiving node through the HARQ process; the communication device determines that the unlicensed spectrum resource is unavailable, and the HARQ process has a data packet that is not successfully transmitted;
  • the communication device triggers an ARQ retransmission for the unsent packet.
  • the data packets can be divided into important data and common data for the importance of the data.
  • the important data is pre-defined, for example, specifying a part of the data in the preset protocol is important data; optionally, the important data may be configured by the network side device and notified to the communication device, such as a base station device. A part of the data is specified as important data, and the user equipment UE is notified.
  • control signaling not limited to RRC, RLC, and MAC layers, as an example:
  • Time Advance Command (TAC)
  • SCel 1 active command SCell deactive command
  • DRX Discontinuous Reception
  • BSR Buffer Status Report
  • PHR Power Headroom Report
  • RLC status report UE Contention Resolution Identity
  • the communication device triggers ARQ retransmission for a data packet that is not successfully transmitted, and includes: sending, by using, the MAC layer of the unlicensed spectrum resource in the communication device to the RLC layer in the communication device a first message for triggering the RLC layer to perform the ARQ retransmission, where the first message includes first information, where the first information is used to identify a first data packet, where the first data packet is used by the MAC layer A data packet whose spectrum resource has not been successfully transmitted;
  • the RLC layer retransmits the first data packet according to the first information included in the first message; the MAC layer that uses the available spectrum resource in the communications device acquires the first data packet from the RLC layer, and sends the first data packet to the pair The end device sends the first data packet.
  • the communication device determines that the unlicensed spectrum resource is unavailable, and may include any one of the following:
  • the communication device determines that the unlicensed spectrum resource is unavailable by detecting that the unlicensed spectrum resource is occupied by another device. For example, the communication device finds that another interference source already exists in the corresponding frequency band; or the communication device determines that the unlicensed spectrum resource is unavailable after determining that the RSS I signal strength of the unlicensed spectrum resource exceeds a preset threshold.
  • the communication device detects that the available time of the unlicensed spectrum resource expires, and determines that the unlicensed spectrum resource is unavailable;
  • the communication device receives a message that the unlicensed spectrum resource is unavailable from the network node, and determines that the unlicensed frequency resource is unavailable according to the message. For example, when a Reque s t To Send (RTS) or C ea r to s end (CTS) is received, it is determined that the unlicensed spectrum resource is unavailable.
  • RTS Reque s t To Send
  • CTS C ea r to s end
  • the transmitting node When the unlicensed spectrum is unavailable, the transmitting node, that is, the above-mentioned communication device, actively triggers the ARQ retransmission.
  • the process timeout triggers the ARQ retransmission at the RLC layer, but selects the available spectrum resources for transmission directly in the initial stage of resource scheduling, thereby shortening the waiting time.
  • the transmitting node For the AM mode in the RLC layer data transmission mode, the transmitting node adds the necessary control protocol overhead to the upper layer data and transmits it, and guarantees delivery to the communication partner.
  • AM mode is a standard mode for packet data transmission, such as email download.
  • the present embodiment enhances the protection of important data with respect to the second embodiment. This embodiment is not described in detail in the same portions as the second embodiment.
  • the communications device before the RA2 retransmission is triggered by the unsuccessful data packet, the communications device further includes: determining to include the RLC data or the important data of the AM mode in the data packet to be sent.
  • the beneficial effect according to the above embodiment is that, when important data is detected, the actively triggered ARQ transmission process enhances the timely response to important data, thereby further enhancing the timeliness and stability of data transmission.
  • the communication device in this embodiment may be a User Equipment (UE).
  • UE User Equipment
  • BSR Buffer Status Report
  • PHR Power Headroom Report
  • the BSR For the BSR, when the generated BSR is prepared to be transmitted by the Protocol Data Unit (PDU) that constitutes the MAC layer, the BSR itself is cancelled. Therefore, if the HARQ process of the MAC PDU containing the BSR is not successful at all, the BSR cannot be retransmitted. For the same reason, PHR also has a situation in which it cannot be retransmitted again. Obviously, the higher the failure probability of the HARQ process, the greater the probability that the BSR and PHR will be lost. This loss of signaling can lead to system instability.
  • PDU Protocol Data Unit
  • the technical solution regarding the BSR is specifically described below.
  • the solution is basically the same as the second embodiment, and the difference is mainly: after the communication device determines that the unlicensed spectrum resource is unavailable, the method further includes: generating a BSR. If it is determined that the BSR is included in the packet that has not been successfully transmitted, the BSR is generated again.
  • the method for generating the BSR includes the following methods, which may be triggered by a clock, triggered by a specific channel buffer state, or may be filled with a trigger.
  • the communication device determines that the unlicensed spectrum resource is unavailable, and determines that the BSR is related to The timer is running and then the timer is set to timeout.
  • the BSR-related timer includes a retransmission BSR timer (re txBSR-Timer) and a periodic BSR timer (er iod i cBSR-T imer ).
  • the triggering condition of the BSR may be that the timer expires. Therefore, by setting the timer timeout, the BSR triggering condition may be generated, and the data buffering condition of the UE may be reported to the base station in time, so that the base station can timely perform resource scheduling and shorten data transmission. Delay.
  • the method further includes: generating a PHR; or further comprising: determining that a timer related to the PHR is running, and then setting the timer to stop.
  • the triggering PHR process may generate a PHR at the RRC layer.
  • the PHR related timers are not limited to the periodic PHR timer (per iod i cPHR-T imer ). Regenerate the PHR by stopping per iod i cPHR-Timer.
  • the triggering condition of the PHR can be the above two forms, the above process can effectively avoid the situation that the PHR data cannot be retransmitted because the MAC PDU is cancelled after being sent, thereby reducing the probability of PHR loss, and perfecting the system. Stability.
  • the above setting for the timer can create conditions for the triggering of the PHR, further ensuring the timeliness and effectiveness of data transmission.
  • the communication device uses an unlicensed spectrum resource to transmit a data packet to the receiving node through a HARQ process
  • the communication device determines that the unlicensed spectrum resource is unavailable, and there is a data packet in the HARQ process that is not successfully sent;
  • the unsuccessfully transmitted data packet is moved from the HARQ buffer of the unlicensed spectrum resource to the vacant HARQ buffer of the licensed spectrum resource.
  • the communication device can include a sending unit, a processing unit, and a HARQ buffer;
  • the HARQ buffer is configured to buffer a data packet to be sent, where the HARQ buffer includes a HARQ buffer for unlicensed spectrum resources and a HARQ buffer for granting spectrum resources; the sending unit is configured to use an unlicensed spectrum resource Source, transmitting a data packet to the receiving node by using a HARQ process; the processing unit is configured to determine that the unlicensed spectrum resource is unavailable, and the unsuccessful data packet exists in the HARQ process, and the unsuccessful data packet is not authorized.
  • the HARQ buffer of the spectrum resource moves to the vacant HARQ buffer of the licensed spectrum resource.
  • the unsuccessfully transmitted data packet is stored in a first buffer in the first MAC layer execution unit.
  • the so-called movement means that the data is not processed, and it is copied as it is. If there is data in the original buffer, the data in the original buffer is deleted.
  • the transmitting unit transmits the unsuccessfully transmitted data packet to the receiving node through the HARQ process.
  • the MAC layer transmits data through the HARQ entity within it.
  • the HARQ entity has a total of eight processes, and each process corresponds to one HARQ buffer.
  • An empty buffer is found in the HARQ buffer of the MAC entity corresponding to the selected spectrum resource.
  • the search process can be a loop process until an empty buffer is found. It should be noted that moving the data to the HARQ buffer of the licensed spectrum does not affect the operation of the RLC layer.
  • the RLC layer maintains its normal data transfer process.
  • the unsuccessfully transmitted data packet is moved from the HARQ buffer of the unlicensed spectrum resource to the vacant HARQ buffer of the licensed spectrum resource, and the data in the buffer is not processed, which reduces unnecessary duplication.
  • the processing process makes the low-level data unnecessary to go through the high-level processing again, further shortening the waiting time and enhancing the timeliness of data transmission.
  • the timely transmission of data can avoid possible data interruptions, thus enhancing the effectiveness of data transmission.
  • data packets can be divided into important data and common data.
  • the important data is pre-defined, for example, specifying a part of the data in the preset protocol is important data; optionally, the important data may be configured by the network side device and notified to the communication device, such as a base station device. A part of the data is specified as important data, and the user equipment UE is notified.
  • control signaling not limited to RRC, RLC, and MAC layers, as follows: Time Advance Command (TAC), SCe l 1 act ive command, SCe ll deact ive command, Di scont inuous Recept ion (DRX) MAC vacancy Unit, Buffer Status Report (BSR), Power Headroom Report (PHR), RLC Status Report (RLC s tus repor t ), UE Content Resolution Indicator (UE), RRC message (RRC mes) Sage ).
  • TAC Time Advance Command
  • SCe l 1 act ive command SCe ll deact ive command
  • DRX Di scont inuous Recept ion
  • BSR Buffer Status Report
  • PHR Power Headroom Report
  • RLC Status Report RLC s tus repor t
  • UE Content Resolution Indicator UE
  • RRC mes Sage
  • the important data is only transmitted on the licensed spectrum resource, and the instability problem of the non-authorized spectrum resource can be completely avoided, thereby ensuring the timeliness and stability of the data transmission.
  • a communication system according to an embodiment of the present invention is further provided below.
  • the communication system includes a base station and user equipment. It will be appreciated that the base station can employ the communication device of any of the above embodiments. Likewise, the user equipment can employ the communication device of any of the above embodiments. It should be within the scope of the invention that at least one of the base station and the user equipment uses the method of the present invention.
  • the units and functional steps of the various embodiments described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for each particular application to implement the described functionality, but such implementation should not be considered to be beyond the scope of the present invention.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or communication connection may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the components displayed by the unit may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in combination with software functional units and hardware.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM, Random Acces s Memory), a magnetic disk or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

 本发明的实施例公开了一种数据处理方法、通信设备和系统。该方法包括通信设备使用非授权频谱资源,通过混合自动重传过程向接收节点传输数据包;该通信设备确定该非授权频谱资源不可用,且该混合自动重传过程中存在未发送成功的数据包;该通信设备为该未发送成功的数据包触发自动重传。本发明实施例的方法、通信设备和系统能够在非授权频谱资源不可用时,及时有效地传输数据。

Description

一种数据处理方法、 通信设备和系统
技术领域 本发明实施例涉及通信领域, 尤其涉及一种数据处理方法、 通信设备和系 统。
背景技术 在目前的无线网络系统中, 为了避免或是减轻不同无线技术之间的干扰, 广泛釆用固定的频谱分配政策。 由国家相关机构或者标准组织进行频谱分配, 将一部分频谱分别划分给指定的机构进行特定的服务。 其中, 被指定分配的频 谱称为 4受权频谱 ( l icensed spec trum ) , 未被指定分配的频谱称为未 4受权频谱 ( unl icensed spec trum ) 。 通信设备可以通过授权频谱与非授权频谱与对侧设 备进行通信。 通常, 授权频谱是稳定可持续的。 未授权频谱是相对不稳定, 不 可持续的。 当前, 大多数 WiFi (Wi re les s Fide l i ty)设备工作在非授权频谱上。 目前中国的非授权频语包括 2. 4 _ 2. 4835 GHz和 5. 725 - 5. 850GHz等频段。 根据美国联邦通信委员会(简称 FCC )最新发布的频谱白皮书, 未授权频谱资源 可能大于授权频语资源。 因此, 将长期演进(Long Term Evolut ion, LTE )设 备应用在非授权频谱, 可以有效利用非授权频谱资源, 增加了数据传输量, 满 足曰益增长的移动宽带服务需求。
但是, 非授权频谱并不像授权频谱那样可以长期稳定的使用, 可能出现在 一段时间内可用, 而接下来的一段时间内不可用的情况。 对于这种情况来说, 本来可用的非授权频谱变为不可用, 数据的重传过程却并没有终止, 会继续在 非授权频谱上等待合适的时机。 这样显然会导致数据无法及时发送出去, 甚至 因为超时而丟包, 因此会影响数据传输的及时性甚至稳定性。 发明内容 本发明实施例提供了一种数据处理方法、 通信设备和系统。 在当前所使用 的非授权频谱资源不可用时, 能够及时地进行触发重传。
一方面, 本发明提供一种通信设备, 包括: 发送单元 301和处理单元 307 , 其中,
该发送单元(301 ) , 用于使用非授权频谱资源, 通过混合自动重传(HARQ) 过程向接收节点传输数据包;
该处理单元( 307 ) ,用于确定该发送单元使用的该非授权频谱资源不可用, 且确定该 HARQ过程中存在未发送成功的数据包, 以及为该未发送成功的数据包 触发自动重传(ARQ )重传。
本发明实施例的提供的通信设备, 其中
该确定单元( 3071 ) , 进一步用于确定该未发送成功的数据包中包含 AM模 式的 RLC数据, 或者包含该重要数据;
该控制单元( 3075 ) , 用于在该确定单元确定该非授权频谱资源不可用, 存在该未发送成功的数据包,且确定该未发送成功的数据包中包含 AM模式的 RLC 数据, 或者包含该重要数据之后, 为该未发送成功的数据包触发 ARQ重传。
本发明实施例提供的通信设备, 进一步包括:
第一 MAC层执行单元( 500 ) , 用于使用该非授权频谱资源执行 HARQ过程; RLC层执行单元( 505 ) , 用于执行 RLC重传; 第二 MAC层执行单元( 507 ) , 用 于使用可用的频谱资源执行 HARQ过程; 该处理单元( 307 )用于为该未发送成 功的数据包触发 ARQ重传, 包括: 通知该第一 MAC层执行单元( 500 ) 向该 RLC 层执行单元发送用于触发该 RLC层执行该 ARQ重传的第一消息, 该第一消息包 含第一信息, 该第一信息用于标识第一数据包, 该第一数据包为该第一 MAC层 执行单元( 500 )使用该非授权频谱资源未发送成功的数据包; 该 RLC层执行单 元( 505 )根据该第一消息中包含的第一信息, 重传该第一数据包; 该第二 MAC 层执行单元( 507 )从该 RLC层执行单元获取该第一数据包, 并通过该发送单元 ( 301 ) 向该接收节点发送该第一数据包。
另一方面, 本发明提供一种数据处理方法, 包括:
通信设备使用非授权频谱资源, 通过 HARQ过程向接收节点传输数据包; 该通信设备确定该非授权频谱资源不可用,且该 HARQ过程中存在未发送成 功的数据包; 该通信设备为该未发送成功的数据包触发 ARQ重传。
本发明实施例提供一种数据处理方法中, 该通信设备为该未发送成功的数 据包触发 ARQ重传之前, 进一步包括:
确定该未发送成功的数据包中包含 AM模式的 RLC数据,或者包含重要数据。 本发明实施例提供一种数据处理方法中, 该通信设备为用户设备; 该通信设备确定该非授权频谱资源不可用之后, 进一步包括: 生成 BSR; 或 者, 进一步包括: 确定与触发生成 BSR相关的定时器正在运行, 之后将该定时 器设置为超时。
本发明实施例提供一种数据处理方法中, 该生成 BSR之前还包括: 确定该未发送成功的数据包中包含 BSR。
本发明实施例提供一种数据处理方法中, 该通信设备为用户设备; 该通信设备确定该非授权频谱资源不可用之后, 进一步包括: 确定未发送 成功的数据包中包含 PHR, 则生成 PHR;
或者, 进一步包括: 确定与触发生成 PHR相关的定时器正在运行之后, 将 该定时器设置为停止。
本发明实施例提供一种数据处理方法中,
该通信设备为该未发送成功的数据包触发 ARQ重传, 包括:
该通信设备中使用该非授权频谱资源的 MAC层向通信设备中的 RLC层发送 用于触发该 RLC层执行该 ARQ重传的第一消息, 该第一消息包含第一信息, 该 第一信息用于标识第一数据包, 该第一数据包为该 MAC层使用该非授权频谱资 源未发送成功的数据包;
该 RLC层根据该第一消息中包含的第一信息, 重传该第一数据包; 该通信设备中使用该可用频谱资源的 MAC层从该 RLC层获取该第一数据包, 并向该对端设备发送该第一数据包。
另一方面, 本发明提供一种通信系统, 包括基站和用户设备, 其中该基站 釆用上述通信设备, 用户设备可以釆用上述通信设备。
本发明各实施例中, 针对非授权频谱资源不可用所导致的数据延迟问题, 提供了对应的解决方案, 保证了数据的及时和稳定。
通信设备使用非授权频谱资源, 通过 HARQ过程向接收节点传输数据包; 该通信设备确定该非授权频谱资源不可用,且该 HARQ过程中存在未发送成 功的数据包;
该通信设备为该未发送成功的数据包触发 ARQ重传。
另一方面, 本发明提供一种通信系统, 包括基站和用户设备, 其中该基站 釆用上述通信设备, 用户设备可以釆用上述通信设备。
本发明各实施例中, 针对非授权频谱资源不可用所导致的数据延迟问题, 提供了对应的解决方案,通过在确定 HARQ过程中使用的该非授权频谱资源不可 用, 且确定该 HARQ过程中存在未发送成功的数据包后,为该未发送成功的数据 包触发自动重传 RQ ) 重传,从而使得通信设备直接在资源调度的初期即选择 可用的频谱资源进行传输, 从而缩短了等待时间, 保证了数据的及时和稳定。 附图说明 图 1 为现有技术中的数据传输过程的示意图;
图 2为根据本发明实施例的数据处理方法的示意图;
图 3为根据本发明实施例的通信设备的示意图;
图 4为根据本发明实施例的通信设备的示意图;
图 5为根据本发明实施例的通信设备的示意图;
图 6为根据本发明实施例的通信系统的示意图。
具体实施方式 下面将结合本发明实施例中的附图, 对本发明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发明的一部分实施例, 而不是全 部实施例。 基于本发明中的实施例, 本领域普通技术人员在没有做出创造性劳 动的前提下所获得的所有其他实施例, 都应属于本发明保护的范围。
应理解, 本发明的技术方案可以应用于各种通信系统, 例如: 全球移动通 讯 ( Globa l Sys tem of Mob i le communi ca t ion, 简称为 "GSM" ) 系统、 码分 多址( Code Divi s ion Mul t iple Acces s , 简称为 "CDMA" ) 系统、 宽带码分 多址 (Wideband Code Division Multiple Access, 简称为 "WCDMA" ) 系统、 通用分组无线业务 ( General Packet Radio Service, 简称为 "GPRS" ) 、 长 期演进( Long Term Evolution, 简称为 "LTE" )系统、 E频分双工( Frequency Division Duplex, 简称为 "FDD" ) 系统、 LTE时分双工( Time Divis ion Duplex, 简称为 "TDD" ) 、 通用移动通信系统 ( Universal Mobile Telecommunication system, 简称为 "UMTS" ) 等。
还应理解, 在本发明实施例中, 终端设备也可称之为用户设备 ( User Equipment, 简称为 "UE" ) 、 移动台 (Mobile Station, 简称为 "MS" ) 、 移 动终端 (Mobile Terminal ) 等, 该终端设备可以经无线接入网 ( Radio Acces s Network, 简称为 "RAN" ) 与一个或多个核心网进行通信, 例如, 终端设备可 以是移动电话( 或称为 "蜂窝" 电话) 、 具有移动终端的计算机等, 例如, 终 端设备还可以是便携式、 袖珍式、 手持式、 计算机内置的或者车载的移动装置, 它们与无线接入网交换语言和 /或数据。
在本发明实施例中, 基站可以是 GSM或 CDMA中的基站 (Base Transceiver Station, 简称为 "BTS" ) , 也可以是 WCDMA中的基站( NodeB, 简称为 "NB" ) , 还可以是 LTE中的演进型基站(Evolved Node B, 简称为 "eNB或 e_NodeB" ;) 。 本发明实施例对基站和用户设备并不限定。
图 1示出了发送节点 T,和接收节点 R。每个节点包含无线链接控制(Radio Link Control , RLC ) 实体和媒体接入控制 (Medium Access Control , MAC )实 体。 在发送节点 T中, 第一 RLC实体 101用于承载数据业务。 每个 RLC实体 101 至少可以调度第一 MAC实体 1031和第二 MAC实体 1032。 该发送节点 T中, 第一 MAC实体 1031被配置为在授权频谱上发送数据包,第二 MAC实体 1032则被配置 为在非授权频谱上发送数据包。 所述数据包, 可以包含数据, 也可以包含控制 信息。 发送节点 T中的各个 MAC实体通过 HARQ过程向接收节点 R中的 MAC实体 发送数据包。 在接收节点 R中, 第三 MAC实体 2031被配置为在授权频谱上接收 数据包, 第四 MAC实体 2032则被配置为在非授权频谱上接收数据包。 第三、 第 四 MAC实体将接收到的数据包发送给接收节点 R中的第二 RLC实体 201。 第二 RLC实体 201将收到的数据包进行数据处理, 从而恢复出原始的数据。
在现实环境中, 由于信道条件恶化或者其他原因, 接收节点在接收数据包 的过程中存在丟失某些数据包的情况。 这就需要接收节点通知发送节点重新发 送数据。 这种重传数据的过程在 MAC层体现为 HARQ过程, 在 RLC层体现为 ARQ 过程。 ARQ过程包括首次传输和 ARQ重传。 HARQ过程和 ARQ过程是两个独立的 重传过程。 HARQ和 ARQ的过程都是自动重新传送的过程, 有各自的最大重传次 数。
在 HARQ过程中, 发送节点中的数据包发送后, 接收节点向发送节点反馈该 数据包是否正确解码, 即发送确认 ( Acknowledgement , ACK ) 或否定确认 (Negative Acknowledgement, NACK ) 。 如果反馈为 NACK, 那么发送节点就会 将数据重传。 可以进行的最大重传次数是事先规定好的, 比如 5 次。 如果达到 最大重传次数时数据发送还是没有成功, 发送节点中的 HARQ实体就停止对该数 据包在 MAC层的发送。 动定时器。 当定时器超时, 发送节点还没有收到来自接收节点的表示数据包发 送成功的状态报告时, 触发 RLC层的数据重传。 每次 RLC层启动重新发送, 被 称为触发 ARQ 重传。 RLC 层的数据传输存在 3 种模式, 分别为应答模式 ( Acknowledged Mode, AM模式) , 透传模式 ( Transparent Mode, TM模式) 和非应答模式(Unacknowledged Mode, UM模式) 。 上述发送的数据包可以是包 含 AM模式的数据的数据包。
同一节点内的 RLC实体和 MAC实体是协作关系。对应的 ARQ过程和 HARQ过 程存在关联性。 以图 1所示的发送节点 T为例。 在緩存器中存在待发送的数据 包 1、 2、 3。 假设每个数据包都是 100个字节 (Byte ) 。 当第二 MAC实体 1032 通知第一 RLC实体 101, 可以在非授权频谱上发送 150个字节。 于是, RLC实体 101将数据包 1的 100个字节, 以及数据包 1的前 50个字节, 发送给第二 MAC 实体 1032。 数据包 2的后 50个字节等待下次可用的发送时机。 第二 MAC实体 1032, 收到 150个字节的数据包, 启动 HARQ过程, 发送给接收节点 R中的第四 MAC实体 2032。 第二 RLC实体 201在恢复数据包时可能会发现存在数据包丟失 的情况。 举例而言, 原来的数据包 1、 2、 3仅恢复出数据包 2、 3 , 即数据包 1 丟失了。 第二 RLC实体 201通过向第一 RLC实体 1 01发送状态 ^艮告 500来触发 ARQ重传, 以通知第一 RLC实体 1 01重新发送数据包 1。 此外当发送节点中 MAC 层的 HARQ超过最大重传次数时, 在发送节点内部也可以触发 ARQ重传, 具体可 以是发送节点中的 MAC层通知该发送节点的 RLC层, 数据包 1未被成功发送。
因为实际过程中, 各个数据包不会顺序到达, 所以 RLC层在获得完整的数 据包之后才能确定是否存在丟包情况。 对于图 1 中的情况而言, 数据包 2的前 50个字节已经道道接收节点的 RLC实体, 但是依旧不能确认是数据包 2是否丟 失。 只有数据包 2的后 50个字节被正确接收后才能确认。 这就使得 ARQ重传中 的定时器需要设定更长的时间, 来等待所有应当被收到的数据。 所以, 相对于 HARQ过程的重传响应, RLC实体包含了更多的数据传输过程及等待时间。
另外, 在图 1的情况中,假设数据包 1和数据包 1都丟失了, 但是第二 RLC 实体 201无法知晓。 只有通过更长时间的等待, 第二 RLC实体 201接收到数据 包 3之后才知晓数据包 1和 2都已经丟失, 再触发重传过程。 如果连续丟失的 包更多, 则等待的时间更长。
另外, 在所有要发送的数据, 即数据包 1到数据包 3都被发送后, 发送节 点才请求接收节点确认, 才有可能触发 ARQ重传。 比如, 发送完数据包 1、 2和 3之后,接收节点发现数据包 3丟失,再触发重传。显然,这样的等待更加漫长。
显然, 上述技术方案中, 存在不必要的等待时间, 延长了数据传输的重传 过程, 影响了数据传输的及时性。
因为非授权频谱的不稳定性, 所以经常会出现不可用的情况。 在数据包通 过非授权频语传输的情况下, 每当该非授权频谱不可用, 就会触发上述的 HARQ 和 /或 ARQ重传。 所以数据传输中的延时情况被进一步强化。 需要的数据不能被 及时传送, 甚至会影响到数据传输的有效性。
数据包传输过程中非授权频谱由可用变为不可用的情况有很多, 以下举例 说明。 一直使用非授权频谱的通信设备与对端设备约定好的使用周期到期时, 该通信设备不再具有使用该非授权频谱的权限, 则对于该通信设备而言, 该非 授权频谱不可用。 简而言之, 只要通信设备不能够使用某个非授权频谱, 就说 明该非授权频谱对于该通信设备来说不可用。
针对上述非授权频谱可能出现不可用而导致数据传输延迟的问题, 本发明 下述各实施例提供了相应的解决方案。
第一实施例
以下进一步提供根据本发明实施例的通信设备。
根据本发明实施例, 提供一种通信设备, 该通信设备可以是用户设备, 也 可以是网络侧诸如基站之类的网络设备。
该通信设备可以包括: 发送单元 301和处理单元 307 , 其中,
该发送单元 301 , 用于使用非授权频谱资源, 通过 HARQ过程向接收节点传 输数据包;
该处理单元 307 ,用于确定该发送单元使用的该非授权频谱资源不可用,且 确定该 HARQ过程中存在未发送成功的数据包, 以及为该未发送成功的数据包触 发 ARQ重传。
本实施例在非授权频谱不可用的时刻, 即由通信设备本身主动触发 ARQ重 传。 这样做有如下好处: 通信设备不再被动地等待接收节点发送的确认消息或 者状态报告, 变被动为主动, 避免了接收节点发送确认消息之前的等待时间,也 不用通过通信设备本身 MAC层的 HARQ过程超时来触发 RLC层的 ARQ重传, 而是 直接在资源调度的初期即选择可用的频谱资源进行传输, 从而缩短了等待时间。
根据本发明实施例的通信设备, 该处理单元 307在为该未发送成功的数据 包触发 ARQ重传之前, 进一步可以确定该未发送成功的数据包中包含 AM模式的 RLC数据, 或者包含重要数据。
根据本发明实施例的通信设备, 该发送单元 301使用授权频谱资源向接收 节点传输第一数据包, 该第一数据包中包括重要数据; 其中, 该重要数据是预 先规定的, 或者, 由网络侧设备配置并通知给该通信设备。
根据本发明实施例, 其中该重要数据可以包括下列至少一种数据: 时间提前量(Time Advance Command, TAC )、辅小区激活命令( SCel 1 active command ) 、 辅小区去激活命令 ( SCell deactive command ) 、 连续接收 ( Discontinuous Reception, DRX) MAC 空置单元、 緩存状态报告( BSR ) 、 功 率余量报告(PHR) 、 RLC状态报告 (RLC status report ) 、 UE 竟争解决指示 ( UE Content ion Resolution Identity) 、 RRC消息 ( RRC message ) 。
根据本发明实施例的通信设备, 该处理单元 307可以包括确定单元 3071、 控制单元 3075, 其中
该确定单元 3071, 用于确定该发送单元使用的该非授权频谱资源不可用, 且确定该 HARQ过程中存在未发送成功的数据包;
该控制单元 3075, 用于在该确定单元确定该非授权频谱资源不可用, 且存 在该未发送成功的数据包之后, 为该未发送成功的数据包触发 ARQ重传。
根据本发明实施例的通信设备,
该确定单元 3071,进一步用于确定该未发送成功的数据包中包含 AM模式的 RLC数据, 或者包含该重要数据;
该控制单元 3075, 用于在该确定单元确定该非授权频谱资源不可用, 存在 该未发送成功的数据包, 且确定该未发送成功的数据包中包含 AM模式的 RLC数 据, 或者包含该重要数据之后, 为该未发送成功的数据包触发 ARQ重传。
上述确定数据包中数据类型, 且根据数据类型确定触发 ARQ重传的有益效 果是, 在检测到重要数据时, 主动触发的 ARQ传输过程加强了对重要数据的及 时响应, 从而进一步增强了数据传输的及时性和稳定性。
根据本发明实施例的通信设备, 该通信设备为用户设备 UE时;
该控制单元 3075, 进一步用于生成 BSR; 或者, 进一步用于在确定与触发 生成 BSR相关的定时器正在运行之后, 将该定时器设置为超时。
根据本发明实施例的通信设备, 所述通信设备为用户设备 UE时, 该控制单 元 3075, 进一步用于在该确定单元 3071确定该未发送成功的数据包中包含 BSR 后, 生成 BSR; 或者, 进一步用于在该确定单元 3071确定该未发送成功的数据 包中包含 BSR, 且确定与触发生成 BSR相关的定时器正在运行之后, 将该定时器 设置为超时。
根据本发明实施例的通信设备, 该通信设备为用户设备 UE时,
该控制单元 3075 ,进一步用于在该确定单元 3071确定未发送成功的数据包 中包含 PHR之后, 生成 PHR;
或者,该控制单元 3075进一步用于在该确定单元 3071确定与触发生成 PHR 相关的定时器正在运行之后, 将该定时器设置为停止。
上述针对 BSR及 PHR的处理方案,可以有效地避免 BSR及 PHR数据因在 MAC PDU发送后即被取消而导致无法重传的情况,因而降低了 BSR及 PHR丟失的概率, 完善了系统的稳定性。 并且, 通过上述针对定时器的设置可以为 BSR及 PHR的 触发创造条件, 进一步保证了数据传输的及时性和有效性 。
根据本发明实施例的通信设备, 该通信设备进一步可以包括:
第一 MAC层执行单元 500, 用于使用该非授权频谱资源执行 HARQ过程; RLC层执行单元 505 , 用于执行 RLC重传;
第二 MAC层执行单元 507 , 用于使用可用的频谱资源执行 HARQ过程; 该处理单元 307用于为该未发送成功的数据包触发 ARQ重传, 包括: 通知 该第一 MAC层执行单元 500向该 RLC层执行单元发送用于触发该 RLC层执行该 ARQ重传的第一消息, 该第一消息包含第一信息, 该第一信息用于标识第一数据 包, 该第一数据包为该第一 MAC层执行单元 500使用该非授权频谱资源未发送 成功的数据包;
该 RLC层执行单元 505根据该第一消息中包含的第一信息, 重传该第一数 据包;
该第二 MAC层执行单元 507从该 RLC层执行单元获取该第一数据包, 并通 过该发送单元 301向该接收节点发送该第一数据包。
根据本发明实施例的通信设备, 该处理单元 307确定该非授权频谱资源不 可用, 可以包括以下任意一种:
该处理单元 307通过检测到该非授权频谱资源被其他设备占用, 确定该非 授权频谱资源不可用; 该处理单元 307检测到该非授权频谱资源的可用时间超时, 确定该非授权 频谱资源不可用;
该处理单元 307接收网络节点发送的该非授权频谱资源不可用的消息, 并 根据该消息确定该非授权频谱资源不可用。
根据本发明实施例的通信设备,发送单元 301,将该重要数据只在授权频谱 发送。
通过只在授权频谱上发送重要数据, 可以使得重要数据的成功发送更有保 障。
第二实施例
根据本发明实施例, 提供一种数据处理方法, 包括:
通信设备使用非授权频谱资源, 通过 HARQ过程向接收节点传输数据包; 该通信设备确定该非授权频谱资源不可用,且该 HARQ过程中存在未发送成 功的数据包;
该通信设备为该未发送成功的数据包触发 ARQ重传。
在数据包的传输过程中, 针对数据的重要性, 可以将数据包分为重要数据 和普通数据。 可选地, 该重要数据是预先规定的, 比如在预设的协议中规定好 一部分数据是重要数据; 可选地, 该重要数据可以由网络侧设备配置并通知给 该通信设备, 比如基站设备规定一部分数据是重要数据, 并通知用户设备 UE。
可以理解的, 该重要数据包括并不限于 RRC, RLC, MAC层的控制信令, 举 例 ^下:
时间提前量(Time Advance Command, TAC )、辅小区激活命令( SCel 1 active command ) 、 辅小区去激活命令 ( SCell deactive command ) 、 连续接收 ( Discontinuous Reception, DRX) MAC 空置单元、 緩存状态报告( BSR ) 、 功 率余量报告(PHR) 、 RLC状态报告 (RLC status report ) 、 UE 竟争解决指示 ( UE Contention Resolution Identity ) 、 RRC消息 ( RRC message ) 。
下面介绍, 该通信设备为未发送成功的数据包触发 ARQ重传, 包括: 该通信设备中使用该非授权频谱资源的 MAC层向通信设备中的 RLC层发送 用于触发该 RLC层执行该 ARQ重传的第一消息, 该第一消息包含第一信息, 该 第一信息用于标识第一数据包, 该第一数据包为该 MAC层使用该非授权频谱资 源未发送成功的数据包;
该 RLC层根据该第一消息中包含的第一信息, 重传该第一数据包; 该通信设备中使用该可用频谱资源的 MAC层从该 RLC层获取该第一数据包, 并向该对端设备发送该第一数据包。
根据本发明实施例, 该通信设备确定该非授权频谱资源不可用的方式, 可 以包括以下任意一种:
该通信设备通过检测到该非授权频谱资源被其他设备占用, 确定该非授权 频谱资源不可用。 比如, 该通信设备发现相应频段上已经存在其他干扰源; 或 者该通信设备通过检测确定该非授权频谱资源的 RSS I信号强度超过预设的阔值 时, 确定该非授权频谱资源不可用。
该通信设备检测到该非授权频谱资源的可用时间超时, 确定该非授权频谱 资源不可用;
该通信设备接收网络节点发送的该非授权频谱资源不可用的消息, 并根据 该消息确定该非授权频语资源不可用。 比如收到发送请求(Reque s t To Send , RTS )或者发送清除(C l ea r to s end , CTS ) 时, 确定该非授权频谱资源不可用。
在非授权频谱不可用的时刻, 即由发送节点,即上述的通信设备,主动触发 ARQ重传。 这样做有如下好处: 发送节点不再被动地等待接收节点发送的确认消 息或者状态报告, 变被动为主动, 避免了接收节点发送确认消息之前的等待时 间,也不用通过发送节点本身 MAC层的 HARQ过程超时来触发 RLC层的 ARQ重传, 而是直接在资源调度的初期即选择可用的频谱资源进行传输, 从而缩短了等待 时间。
第三实施例
针对 RLC层数据发送模式中的 AM模式,发送节点在高层数据上添加必要的 控制协议开销后进行传送, 并保证传递到通信对方。 AM模式是分组数据传输的 标准模式, 比如电子邮件下载。 为了加强数据的有效性, 本实施例相对于第二实施例加强了对重要数据的 保护。 本实施例与第二实施例相同部分不再赘述。
根据本实施例, 该通信设备为该未发送成功的数据包触发 ARQ重传之前, 进一步包括: 确定在待发送的数据包中包含 AM模式的 RLC数据或者重要数据。
根据上述实施例的有益效果是, 在检测到重要数据时, 主动触发的 ARQ传 输过程加强了对重要数据的及时响应, 从而进一步增强了数据传输的及时性和 稳定性。
第四实施例
本实施例加强了对上行传输中的及时性和稳定性。 本实施例中的通信设备 可以为用户设备 ( User Equi pment , UE ) 。
在 MAC层的数据发送过程中, MAC层发送的数据的另一部分是由 MAC层自己 生成的。比如緩存状态报告(Buffer S ta tus Repor t , BSR )与功率余量报告( Power Headroom Repor t , PHR ) 。 BSR是用户设备用来向基站 (Evo lved NodeB, eNB ) 报告本 UE緩存中的数据情况的状态报告, eNB根据 BSR来对 UE进行调度。 PHR 是为了向服务 eNB提供 UE的最大传输功率与当前上行共享信道( Up l ink Shared Channe l , UL-SCH )传输功率估计值之间的差异信息。
对 BSR而言, 当生成的 BSR被组成 MAC层的协议数据单元( PDU )准备发送 时, 该 BSR本身就被取消了。 因此, 如果包含该 BSR的 MAC PDU的 HARQ过程最 终没有成功, 那么该 BSR也无法被重传。 基于相同的原因 PHR也有无法被再次 重传的情况。 显然, HARQ过程失败概率越高, BSR和 PHR丟失的概率就越大。 这种信令的丟失会导致系统的不稳定。
以下具体描述关于 BSR的技术方案。 该方案与第二实施例基本相同, 区别 主要在于: 该通信设备确定该非授权频谱资源不可用之后, 进一步包括: 生成 BSR。 确定在未发送成功的数据包中包含 BSR, 则再次生成 BSR。
BSR的生成方式包括并不限于以下方式,可以由时钟触发,也可以由具体的 信道緩存状态触发, 还可以填充触发。 作为生成 BSR 的替换方案, 还可以有如 下技术方案: 该通信设备确定该非授权频谱资源不可用之后, 确定与 BSR相关 的定时器正在运行, 之后将该定时器设置为超时。 具体的, 该与 BSR相关的定 时器包括并不局限于重传 BSR 定时器 ( re txBSR-Timer ) 、 周期 BSR 定时器 ( er iod i cBSR-T imer ) 。
因为 BSR的触发条件可以是上述定时器超时, 所以通过设置上述定时器超 时, 可以为 BSR的触发创造条件, 可以及时向基站报告 UE的数据緩存情况, 便 于基站及时进行资源调度, 缩短数据发送时延。
以下具体描述关于 PHR的技术方案。 该方案与第二实施例基本相同, 区别 主要在于:
该通信设备确定该非授权频谱资源不可用之后, 进一步包括: 生成 PHR; 或 者, 进一步包括: 确定与 PHR相关的定时器正在运行, 之后将该定时器设置为 停止。 具体地, 触发 PHR过程可以为在 RRC层生成 PHR。 该与 PHR相关的定时器 包括并不局限于周期 PHR 定时器 ( per iod i cPHR-T imer ) 。 通过停止 per iod i cPHR-Timer来触发重新生成 PHR。
因为 PHR的触发条件可以是上述两种形式, 通过上述过程, 可以有效地避 免 PHR数据因在 MAC PDU发送后即被取消而导致无法重传的情况, 因而降低了 PHR丟失的概率, 完善了系统的稳定性。 并且, 通过上述针对定时器的设置可以 为 PHR的触发创造条件, 进一步保证了数据传输的及时性和有效性 。
第五实施例
根据本发明实施例, 该通信设备使用非授权频谱资源, 通过 HARQ过程向接 收节点传输数据包;
该通信设备确定该非授权频谱资源不可用,且该 HARQ过程中存在未发送成 功的数据包;
将未发送成功的数据包从非授权频谱资源的 HARQ緩存器移动到授权频谱资 源的空置的 HARQ緩存器。
相应地, 该通信设备可以包括发送单元、 处理单元及 HARQ緩存器; 其中,
HARQ緩存器用于緩存待发送的数据包, 该 HARQ緩存器包括非授权频谱资源的 HARQ緩存器及授权频谱资源的 HARQ緩存器;该发送单元用于使用非授权频谱资 源, 通过 HARQ过程向接收节点传输数据包; 该处理单元用于确定该非授权频谱 资源不可用, 且该 HARQ过程中存在未发送成功的数据包, 以及将未发送成功的 数据包从非授权频谱资源的 HARQ緩存器移动到授权频谱资源的空置的 HARQ緩 存器。
可选地, 未发送成功的数据包存储在第一 MAC层执行单元中的第一緩存器 中。 所谓的移动, 是指不对数据进行加工处理, 原样复制过去, 如果原緩存器 中存有数据, 删除原緩存器中的数据。 该发送单元通过 HARQ过程向接收节点发 送移动后的该未发送成功的数据包。
MAC层通过其内的 HARQ实体发送数据。 HARQ实体共有 8个进程, 每个进程 对应一个 HARQ緩存器。 在所选择的频谱资源所对应的 MAC实体的 HARQ緩存器 中寻找空緩存器。 寻找过程可以为循环过程, 直到找到空的緩存器为止。 需要 注意的是,将数据移动到授权频谱的 HARQ緩存器, 并不影响 RLC层的工作。 RLC 层维持其正常的数据传输过程。
本实施例中,将未成功发送的数据包从非授权频谱资源的 HARQ緩存器移动 到授权频谱资源的空置的 HARQ緩存器,不需要对緩存器中的数据进行加工处理, 减少了重复不必要的处理过程, 使得低层的数据不必要经历再次的高层处理过 程, 进一步缩短了等待时间, 增强了数据传输的及时性。 数据的及时传输, 可 以避免可能出现的数据中断情况, 从而增强了数据传输的有效性。
第六实施例
本实施例相对于第二实施例的不同之处为: 重要数据不在非授权频谱资源 上发送, 只在授权频谱资源上发送。
针对数据的重要性, 可以将数据包分为重要数据和普通数据。 可选地, 该 重要数据是预先规定的, 比如在预设的协议中规定好一部分数据是重要数据; 可选地, 该重要数据可以由网络侧设备配置并通知给该通信设备, 比如基站设 备规定一部分数据是重要数据, 并通知用户设备 UE。
可以理解的, 该重要数据包括并不限于 RRC, RLC , MAC层的控制信令, 举 例如下: 时间提前量(Time Advance Command , TAC )、辅小区激活命令( SCe l 1 act ive command ) 、 辅小区去激活命令 ( SCe l l deact ive command ) 、 连续接收 ( Di scont inuous Recept ion, DRX) MAC 空置单元、 緩存状态报告( BSR ) 、 功 率余量报告(PHR ) 、 RLC状态报告 ( RLC s ta tus repor t ) 、 UE 竟争解决指示 ( UE Content ion Resolut ion Ident i ty ) 、 RRC消息 ( RRC mes sage ) 。
根据本实施例, 将重要数据仅在授权频谱资源上发送, 可以完全避免非授 权频谱资源的不稳定性问题, 从而保证了数据发送的及时性和稳定性。
第七实施例
以下进一步提供根据本发明实施例的通信系统。
该通信系统包括基站和用户设备。 可以理解, 基站可以釆用上述任一实施 例中的通信设备。 同样, 用户设备可以釆用上述任一实施例中的通信设备。 只 要该基站和用户设备中的至少一个使用了本发明的方法都应当在本发明的范围 之内。 本领域普通技术人员可以意识到, 结合本文中所公开的实施例描述的各示 例的单元及功能步骤, 能够以电子硬件、 或者计算机软件和电子硬件的结合来 实现。 这些功能究竟以硬件还是软件方式来执行, 取决于技术方案的特定应用 和设计约束条件。 专业技术人员可以对每个特定的应用使用不同方法来实现所 描述的功能, 但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到, 为了描述的方便和简洁, 上述描 述的系统、 设备和单元的具体工作过程, 可以参考前述方法实施例中的对应过 程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统、 装置和方 法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性 的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以有另 外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个系统, 或 一些特征可以忽略, 或不执行。 另外, 所显示或讨论的相互之间的耦合或直接 耦合或通信连接可以是通过一些接口、 装置或单元的间接耦合或通信连接, 也 可以是电的, 机械的或其它的形式连接。 单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地方, 或者 也可以分布到多个网络单元上。 可以根据实际的需要选择其中的部分或者全部 单元来实现本发明实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元中, 也可以是各个单元单独物理存在, 也可以是两个或两个以上单元集成在一个单 元中。 上述集成的单元既可以釆用硬件的形式实现, 也可以釆用软件功能单元 和硬件相结合的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或 使用时, 可以存储在一个计算机可读取存储介质中。 基于这样的理解, 本发明 的技术方案本质上或者说对现有技术做出贡献的部分, 或者该技术方案的全部 或部分可以以软件产品的形式体现出来, 该计算机软件产品存储在一个存储介 质中, 包括若干指令用以使得一台计算机设备( 可以是个人计算机, 服务器, 或者网络设备等) 执行本发明各个实施例所述方法的全部或部分步骤。 而前述 的存储介质包括: U盘、 移动硬盘、 只读存储器(ROM, Read-On ly Memory) , 随 机存取存储器(RAM, Random Acces s Memory) , 磁碟或者光盘等各种可以存储程 序代码的介质。
总之, 以上所述仅为本发明技术方案的较佳实施例而已, 并非用于限定本 发明的保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权 利 要 求
1、 一种通信设备, 其特征在于, 所述通信设备包括: 发送单元(301 )和 处理单元( 307 ) , 其中,
所述发送单元( 301 ),用于使用非授权频谱资源,通过混合自动重传(HARQ) 过程向接收节点传输数据包;
所述处理单元( 307 ) , 用于确定所述发送单元使用的所述非授权频谱资 源不可用,且确定所述 HARQ过程中存在未发送成功的数据包, 以及为所述未发 送成功的数据包触发自动重传 RQ) 重传。
2、 根据权利要求 1所述的通信设备, 其特征在于,
所述处理单元( 307 )在为所述未发送成功的数据包触发 ARQ 重传之前, 进一步确定所述未发送成功的数据包中包含应答模式(AM)的无线链路控制 (RLC)数据, 或者包含重要数据。
3、 根据权利要求 1或 2所述的通信设备, 其特征在于,
所述发送单元 ( 301 )使用授权频谱资源向接收节点传输第一数据包, 所 述第一数据包中包括重要数据; 其中, 所述重要数据是预先规定的, 或者, 由 网络侧设备配置并通知给所述通信设备。
4、 根据权利要求 2或 3所述的通信设备, 其中所述重要数据包括下列至 少一种数据:
时间提前量 (TAC) 、 辅小区激活命令(SCell active command ) 、 辅小 区去激活命令 ( SCell deactive command ) 、 连续接收 (Di scont inuous Reception, DRX)媒体接入控制 (MAC) 空置单元、 緩存状态报告 ( BSR ) 、 功率 余量报告 (PHR) 、 RLC 状态报告、 用户设备竟争解决指示 (UE Contention Resolution Identity ) 、 无线资源控制消息 ( RRC message ) 。
5、 根据权利要求 1至 4 中任一所述的通信设备, 其特征在于, 所述处理 单元(307 ) 包括确定单元 o )、 控制单元(3075 ) , 其中
所述确定单元( 3071 ) , 用于确定所述发送单元使用的所述非授权频谱资 源不可用, 且确定所述 HARQ过程中存在未发送成功的数据包;
所述控制单元( 3075 ) , 用于在所述确定单元确定所述非授权频谱资源不 可用, 且存在所述未发送成功的数据包之后, 为所述未发送成功的数据包触发 ARQ重传。
6、 根据权利要求 5所述的通信设备, 其特征在于,
所述确定单元( 3071 ) , 进一步用于确定所述未发送成功的数据包中包含 AM模式的 RLC数据, 或者包含重要数据;
所述控制单元( 3075 ) , 用于在所述确定单元确定所述非授权频谱资源不 可用, 存在所述未发送成功的数据包, 且确定所述未发送成功的数据包中包含 AM模式的 RLC数据, 或者包含所述重要数据之后, 为所述未发送成功的数据包 触发 ARQ重传。
7、 根据权利要求 5或 6所述的通信设备, 其特征在于, 所述通信设备为 用户设备;
所述控制单元( 3075 ) , 进一步用于生成 BSR; 或者, 进一步用于在确定 与触发生成 BSR相关的定时器正在运行之后, 将所述定时器设置为超时。
8、 根据权利要求 5或 6所述的通信设备, 所述通信设备为用户设备; 所述控制单元( 3075 ) , 进一步用于在所述确定单元( 3071 )确定所述未 发送成功的数据包中包含 BSR后, 生成 BSR; 或者, 进一步用于在所述确定单 元( 3071 )确定所述未发送成功的数据包中包含 BSR, 且确定与触发生成 BSR 相关的定时器正在运行之后, 将所述定时器设置为超时。
9、 根据权利要求 5或 6所述的通信设备, 其特征在于, 所述通信设备为 用户设备;
所述控制单元( 3075 ) , 进一步用于在所述确定单元( 3071 )确定未发送 成功的数据包中包含 PHR之后, 生成 PHR;
或者, 所述控制单元( 3075 )进一步用于在所述确定单元( 3071 )确定与 触发生成 PHR相关的定时器正在运行之后, 将所述定时器设置为停止。
10、 根据权利要求 1至 9中任一所述的通信设备, 其特征在于, 所述通信 设备进一步包括:
第一 MAC层执行单元( 500 ) , 用于通过所述发送单元(301 )使用所述非 授权频谱资源执行 HARQ过程;
RLC层执行单元( 505 ) , 用于执行 RLC重传;
第二 MAC层执行单元( 507 ) , 用于使用可用的频谱资源执行 HARQ过程; 所述处理单元( 307 )用于为所述未发送成功的数据包触发 ARQ 重传, 包 括: 通知所述第一 MAC层执行单元( 500 )向所述 RLC层执行单元发送用于触发 所述 RLC层执行单元执行所述 ARQ重传的第一消息, 所述第一消息包含第一信 息, 所述第一信息用于标识第一数据包, 所述第一数据包为所述第一 MAC层执 行单元( 500 )使用所述非授权频谱资源未发送成功的数据包;
所述 RLC层执行单元( 505 )根据所述第一消息中包含的第一信息, 重传 所述第一数据包;
所述第二 MAC层执行单元( 507 )从所述 RLC层执行单元获取所述第一数 据包, 并通过所述发送单元(301 ) 向所述接收节点发送所述第一数据包。
1 1、 根据权利要求 1至 1 0中任一所述的通信设备, 其特征在于, 所述处 理单元( 307 )确定所述非授权频谱资源不可用, 包括以下任意一种:
所述处理单元( 307 )通过检测到所述非授权频谱资源被其他设备占用, 确定所述非授权频谱资源不可用;
所述处理单元( 307 )检测到所述非授权频谱资源的可用时间超时, 确定 所述非授权频谱资源不可用;
所述处理单元( 307 )接收网络节点发送的所述非授权频谱资源不可用的 消息, 并根据所述消息确定所述非授权频谱资源不可用。
12、 根据权利要求 1至 1 1中任一所述的通信设备, 其特征在于, 所述发送单元(301 ) , 将所述通信设备的重要数据只在授权频语发送。
1 3、 一种通信系统, 包括基站和用户设备, 其中所述基站为权利要求 1至
6、 1 0至 12中任一所述的通信设备, 和 /或, 所述用户设备为权利要求 1至 12 中任一所述的通信设备。
14、 一种数据处理方法, 其特征在于, 包括:
通信设备使用非授权频谱资源, 通过 HARQ过程向接收节点传输数据包; 所述通信设备确定所述非授权频谱资源不可用, 且所述 HARQ 过程中存在 未发送成功的数据包;
所述通信设备为所述未发送成功的数据包触发 ARQ重传。
15、 根据权利要求 14 所述的方法, 其特征在于, 所述通信设备为所述未 发送成功的数据包触发 ARQ重传之前, 进一步包括:
确定所述未发送成功的数据包中包含 AM模式的 RLC数据, 或者包含重要 数据。
16、 根据权利要求 14或 15所述的方法, 其特征在于, 进一步包括: 所述 通信设备使用授权频谱资源向接收节点传输第一数据包, 所述第一数据包中包 括重要数据; 其中, 所述重要数据是预先规定的, 或者, 由网络侧设备配置并 通知给所述通信设备。
17、 根据权利要求 15或 16所述的方法, 其中所述重要数据包括下列至少 —种数据:
时间提前量 (TAC ) 、 辅小区激活命令(SCe l l act ive command ) 、 辅小 区去激活命令 ( SCe l l deact ive command ) 、 连续接收( Di scont inuous Recept ion, DRX)媒体接入控制 (MAC ) 空置单元、 緩存状态报告 ( BSR ) 、 功率 余量报告 (PHR ) 、 RLC 状态报告、 用户设备竟争解决指示 (UE Content ion Resolut ion Ident i ty ) 、 无线资源控制消息 ( RRC mes sage ) 。
18、 根据权利要求 14至 17任一所述的方法, 其特征在于, 所述通信设备 为用户设备;
所述通信设备确定所述非授权频谱资源不可用之后, 进一步包括: 生成 BSR; 或者, 进一步包括: 确定与触发生成 BSR相关的定时器正在运行, 之后将 所述定时器设置为超时。
19、 根据权利要求 18所述的方法, 所述生成 BSR之前, 或确定与触发生 成 BSR相关的定时器正在运行之前, 还包括: 确定所述未发送成功的数据包中包含 BSR。
20、 根据权利要求 14 所述的方法, 其特征在于, 所述通信设备为用户设 备;
所述通信设备确定所述非授权频谱资源不可用之后, 进一步包括: 确定未 发送成功的数据包中包含 PHR , 则生成 PHR;
或者, 进一步包括: 确定与触发生成 PHR相关的定时器正在运行之后, 将 所述定时器设置为停止。
21、 根据权利要求 14至 20中任一所述的方法, 其特征在于,
所述通信设备为所述未发送成功的数据包触发 ARQ重传, 包括: 所述通信设备中使用所述非授权频谱资源的 MAC层向通信设备中的 RLC层 发送用于触发所述 RLC层执行所述 ARQ重传的第一消息, 所述第一消息包含第 一信息, 所述第一信息用于标识第一数据包, 所述第一数据包为所述 MAC层使 用所述非授权频谱资源未发送成功的数据包;
所述 RLC层根据所述第一消息中包含的第一信息, 重传所述第一数据包; 所述通信设备中使用所述可用频谱资源的 MAC层从所述 RLC层获取所述第 一数据包, 并向所述对端设备发送所述第一数据包。
22、 根据权利要求 14至 21中任一所述的方法, 其特征在于, 所述通信设 备确定所述非授权频谱资源不可用, 包括以下任意一种:
所述通信设备通过检测到所述非授权频谱资源被其他设备占用, 确定所述 非授权频谱资源不可用;
所述通信设备检测到所述非授权频谱资源的可用时间超时, 确定所述非授 权频谱资源不可用;
所述通信设备接收网络节点发送的所述非授权频谱资源不可用的消息, 并 根据所述消息确定所述非授权频谱资源不可用。
23、 根据权利要求 14至 22中任一所述的方法, 其特征在于,
所述通信设备的重要数据只在授权频谱发送。
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