WO2011113378A2 - 一种用户面缓冲器内存的恢复方法及装置 - Google Patents

一种用户面缓冲器内存的恢复方法及装置 Download PDF

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Publication number
WO2011113378A2
WO2011113378A2 PCT/CN2011/073300 CN2011073300W WO2011113378A2 WO 2011113378 A2 WO2011113378 A2 WO 2011113378A2 CN 2011073300 W CN2011073300 W CN 2011073300W WO 2011113378 A2 WO2011113378 A2 WO 2011113378A2
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Prior art keywords
buffer
memory
link layer
entry
data link
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PCT/CN2011/073300
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English (en)
French (fr)
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WO2011113378A3 (zh
Inventor
胡建波
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华为技术有限公司
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Priority to CN201180000390.7A priority Critical patent/CN102293029B/zh
Priority to PCT/CN2011/073300 priority patent/WO2011113378A2/zh
Publication of WO2011113378A2 publication Critical patent/WO2011113378A2/zh
Publication of WO2011113378A3 publication Critical patent/WO2011113378A3/zh
Priority to US14/061,839 priority patent/US9459830B2/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F5/00Methods or arrangements for data conversion without changing the order or content of the data handled
    • G06F5/06Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor
    • G06F5/10Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor having a sequence of storage locations each being individually accessible for both enqueue and dequeue operations, e.g. using random access memory
    • G06F5/12Means for monitoring the fill level; Means for resolving contention, i.e. conflicts between simultaneous enqueue and dequeue operations
    • G06F5/14Means for monitoring the fill level; Means for resolving contention, i.e. conflicts between simultaneous enqueue and dequeue operations for overflow or underflow handling, e.g. full or empty flags
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/10Flow control; Congestion control
    • H04L47/29Flow control; Congestion control using a combination of thresholds
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/04Arrangements for maintaining operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and apparatus for recovering user plane buffer memory.
  • LTE Long Term Evolution
  • BLER Block Error Ratio
  • air interface loss retransmission increase, etc.
  • UE User Equipment, user equipment
  • RLC Radio Link Control
  • PDCP Packet Data Convergence Protocol
  • L2 Layer 2 protocol
  • the receiving window and the reordering window buffer a large amount of data; in addition, different user plane memory management implementations, different Layer 2 protocols and external module interface implementations may also result in a further increase in buffer memory usage.
  • the amount of memory of the L2 buffer used by the LTE UE will be limited to a certain level.
  • the amount of L2 cache data may reach or The extreme scenario that exceeds the upper limit of the buffer memory, that is, the L2 buffer memory overflow.
  • the memory allocation failure will occur; in the event of memory allocation failure, the user plane number transmission will be abnormally interrupted, and may cause a more serious system abnormality.
  • the RLC PDU (in which the PDU is called a Protocol Data Unit, the protocol data unit) is retransmitted to the uplink.
  • the maximum number of times triggers the RRC (Radio Resource Control) re-establishment process; the re-establishment process fails, and the RRC releases all RB (Radio Bearer), which makes the L2 buffer memory recover.
  • RRC Radio Resource Control
  • the L2 MAC (Medium Access Control) cannot receive the PDU reported from the PHY (Physical Layer) because the L2 buffer overflows. That is, the RLC cannot receive the status PDU from the base station.
  • the RLC uplink PDU continues to retransmit after the t-PollRetmnsmit times out until the maximum number of retransmissions is reached;
  • the RRC initiates an RRC connection re-establishment procedure according to the provisions of Section 5.3.11 of the 36.331 protocol, and starts the T301 timer;
  • the L2 performs the re-establishment process. According to the 36.322 and 36.323 protocols, the L2 data continues to be cached in the PDCP. However, since the L2 buffer is not released, the L2 data transmission function is still unavailable, and the RRC connection re-establishment request fails to be sent.
  • the eNB actively releases the UE, and the UE status is inconsistent with the eNB, and finally triggers the UE RRC to release all RBs, so that the L2 buffer is enabled. Recovery.
  • the specific process is as follows:
  • the eNB detects that the UE status is abnormal, initiates an RRC connection release message, and actively releases the message.
  • the eNB Since the eNB has released the UE, the UE status is inconsistent with the eNB, and the PHY will detect Out of step, reported to the RRC; or, the MAC may have a TA timeout, and the TA timeout is reported to the RRC;
  • the RRC initiates a connection re-establishment procedure according to the provisions of Section 5.3.11 of the 36.331 protocol, and starts the T301 timer;
  • L2 performs the re-establishment process, the data should continue to be cached in the PDCP, but the PDCP cannot be released. At this time, the L2 data transmission function is still unavailable, and the RRC connection re-establishment request fails to be sent;
  • RRC T301 times out and releases all RBs in accordance with 5.3.7.7 and 5.3.12 of 36.331;
  • the method shown in FIG. 1 and FIG. 2 is a conventional memory recovery method used when the UE Layer 2 protocol buffer overflows, and the two methods mainly rely on the related protocol timer protection, and perform an abnormal release operation after the timeout. Because the length of the related timer and the exception handling process after the timeout are in compliance with the protocol, the entire recovery process may be complicated, resulting in a long memory recovery time, which may cause the UE to be in an abnormal state for a long time.
  • Embodiments of the present invention provide a method and apparatus for restoring a user plane buffer memory for recovering memory of a user plane buffer in a timely manner.
  • a method for recovering user plane buffer memory includes:
  • the memory usage of the buffer is greater than or equal to a preset threshold
  • the memory of the buffer is released; the preset threshold is less than the memory capacity of the buffer.
  • a recovery device for a user plane buffer memory comprising:
  • a monitoring unit for monitoring the memory usage of the buffer in real time
  • a determining unit configured to determine whether a memory usage of the buffer is greater than or equal to a preset threshold; the preset threshold is less than a memory capacity of the buffer;
  • a release unit configured to release the buffer if the judgment result of the determination unit is YES Memory.
  • the method and device for recovering the memory of the user plane buffer provided by the embodiment of the present invention, setting a threshold value for the memory usage of the buffer, and the threshold value is smaller than the memory capacity of the buffer, so that when buffering
  • the memory of the buffer is released when the memory usage of the device reaches or exceeds the threshold; in the prior art, when the buffer overflows and the related timer expires, the memory of the buffer is released.
  • the solution flow chart provided by the invention can recover the memory of the user plane buffer in time and quickly.
  • FIG. 1 is a flow chart of a method for memory recovery of a user plane buffer in the prior art
  • FIG. 2 is a flow chart of another method for memory recovery of a user plane buffer in the prior art
  • FIG. 4 is a schematic diagram of another method for memory recovery of a user plane buffer according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for memory recovery of a user plane buffer according to an embodiment of the present invention
  • FIG. 6 is a flowchart of another method for memory recovery of a user plane buffer according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of still another method for memory recovery of a user plane buffer according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of a device for memory recovery of a user plane buffer according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a method for restoring the memory of the user plane buffer, and the execution body of the method may be a user equipment.
  • the function module of the User Equipment (called UE) may be a functional module of a evolved Node B (abbreviated as eNB).
  • UE User Equipment
  • eNB evolved Node B
  • the following embodiments are described by taking the recovery method of the user plane buffer memory of the LTE UE as an example.
  • the execution body of the method may be a function module of the UE.
  • the user plane buffer mainly includes a buffer of the data link layer. Therefore, in the embodiment of the present invention, the memory recovery method of the buffer of the data link layer is taken as an example for description.
  • the data link layer usually includes PDCP (Packet Data Convergence Protocol), RLC (Radio Link Control), and MAC (Medium Access Control Media Access Control).
  • PDCP Packet Data Convergence Protocol
  • RLC Radio Link Control
  • MAC Medium Access Control Media Access Control
  • the data link layer may also have multiple buffers.
  • the three protocols of the data link layer may have corresponding buffers, that is, PDCP buffers respectively. , RLC buffer, and MAC buffer.
  • the method specifically includes the following steps:
  • this step can monitor the memory usage of the data link layer buffer in real time at the upstream or downstream data entry or other entry of the data link layer.
  • the uplink data entry may be a PDCP entry, the downlink data entry may be a MAC entry, and the other entry may be an RLC entry.
  • a threshold value is set in advance for the buffer of the data link layer, which is smaller than the memory capacity of the buffer.
  • the memory capacity of the buffer is the maximum memory usage of the buffer. If the memory usage of the buffer is greater than the memory capacity of the buffer, the memory of the buffer overflows.
  • the memory usage of the buffer is determined according to the size of the preset threshold, regardless of whether the memory of the buffer overflows, as long as the memory usage of the buffer is greater than or equal to a preset ⁇ ! The limit, the conclusion that the buffer's memory is abnormal.
  • step 302 If the determination in step 302 is yes, release the memory of the buffer.
  • the memory of the buffer is released, that is, the memory of the buffer is restored.
  • step 301 can be:
  • the uplink data When the uplink data reaches the uplink data entry of the data link layer, check the memory usage of the buffer of the data link layer at the uplink data entry; that is, when the uplink data reaches the PDCP entry of the data link layer Check the memory usage of the buffer of the data link layer at the PDCP entry; or,
  • the uplink data/downlink data When the uplink data/downlink data reaches other entries of the data link layer, check the memory usage of the buffer of the data link layer at the other entry; that is, when the uplink data/downlink data reaches the data link layer At the time of the RLC entry, the memory of the buffer of the data link layer is checked at the RLC entry.
  • the method specifically includes the following steps:
  • Monitor in real time, a memory usage of a buffer of a data link layer, and determine whether a memory usage of the buffer is greater than or equal to a preset threshold;
  • each buffer Since the data link layer has three buffers, each buffer has its own memory capacity.
  • a threshold value is preset for each buffer, and for each buffer In this case, the preset threshold of the buffer is smaller than the memory capacity of the buffer.
  • This step may be: monitoring the memory usage of the PDCP buffer in real time at the PDCP entry, and determining whether the memory usage of the PDCP buffer is greater than or equal to a preset threshold of the PDCP buffer; or
  • the memory usage of the RLC buffer is monitored in real time at the RLC entry, and it is determined whether the memory usage of the RLC buffer is greater than or equal to the preset threshold of the RLC buffer.
  • this step can be:
  • the uplink data When the uplink data reaches the PDCP entry, check the memory usage of the PDCP buffer at the PDCP entry, and determine whether the memory usage of the PDCP buffer is greater than or equal to a preset threshold of the PDCP buffer; or
  • the memory usage of the RLC buffer is checked at the RLC entry, and it is determined whether the memory usage of the RLC buffer is greater than or equal to the preset threshold of the RLC buffer.
  • step 401 the memory of the buffer of the data link layer is released.
  • the method includes: if it is determined that the memory usage of the PDCP buffer is greater than or equal to a preset threshold of the PDCP buffer, releasing the memory of the PDCP buffer, or releasing all buffers of the data link layer (including: PDCP) The memory of the buffer, the MAC buffer, and the RLC buffer; if it is determined that the memory usage of the MAC buffer is greater than or equal to the preset threshold of the MAC buffer, the memory of the MAC buffer is released. Or release the memory of all buffers of the data link layer (including: PDCP buffer, MAC buffer, RLC buffer);
  • the memory of the RLC buffer is released, or all buffers of the data link layer are released (including: Memory of PDCP buffer, MAC buffer, RLC buffer).
  • the solution provided by the present invention can be applied to the memory recovery of the WCDMA and TD-SCDMA user plane buffers in addition to the LTE system.
  • the method for recovering the memory of the user plane buffer sets a threshold value for the memory usage of the buffer, and the threshold value is smaller than the memory capacity of the buffer, so that when the buffer The memory of the buffer is released when the memory usage reaches or exceeds the threshold; in the prior art, when the buffer overflows and the related timer expires, the memory of the buffer is released;
  • the solution provided by the present invention is simple in process, and the memory of the user plane buffer can be restored in time and quickly.
  • the method for restoring the data link layer buffer of the user equipment in the communication process between the user equipment and the base station will be described in detail below.
  • the present invention provides a specific user plane buffer memory recovery method for a user equipment to send uplink data to a base station, and in the method, the data link layer shares a buffer.
  • a memory threshold is used for the data link layer buffer, and the threshold is less than the memory capacity of the data link layer buffer.
  • the APP Application Layer
  • the APP sends uplink data to the base station, and when the uplink data reaches the PDCP entry, checks the memory usage of the buffer of the data link layer.
  • the uplink data is normally submitted to the RLC for processing.
  • the PDCP immediately reports a memory abnormality message of the buffer to the RRC (Radio Resource Control).
  • RRC Radio Resource Control
  • the RRC After receiving the memory exception message of the buffer, the RRC issues all the releases by the RRC. Wireless resource instructions;
  • the data link layer releases all the radio resources of the data link layer according to the description in section 5.3.12 of the 36.331 protocol, including releasing the MAC configuration and releasing all the RLC entities of the established RB.
  • the PDCP entity that is, the radio resources occupied by the MAC configuration, the RLC entity, and the PDCP entity are released, including, of course, releasing the memory of the buffer of the data link layer occupied by the three, that is, the data link layer. The buffer's memory is restored.
  • the method may further include step 506 after completing the memory recovery of the data link layer.
  • the RRC re-initiates the establishment of the connection request, and restores the communication service.
  • the present invention provides a specific user plane buffer memory recovery method for a base station to send downlink data to a user equipment, and in the method, the data link layer shares a buffer.
  • a memory threshold is used for the data link layer buffer, and the threshold is less than the memory capacity of the data link layer buffer.
  • the base station sends downlink data to the user equipment, and when the downlink data reaches the MAC portal, checks a memory usage of a buffer of the data link layer.
  • the downlink data is normally submitted to the RLC for processing.
  • the MAC immediately reports the memory abnormality message of the buffer to the RRC.
  • the RRC After receiving the memory exception message of the buffer, the RRC sends an instruction to release all the radio resources by the RRC.
  • the data link layer After receiving the instruction sent in step 604, the data link layer initiates release of all radio resources of the data link layer according to the description in section 5.3.12 of the 36.331 protocol, including releasing the MAC configuration and releasing all RLC entities of the established RB. , PDCP entity, data link layer at this time The buffer's memory is restored.
  • the RRC re-initiates the establishment of the connection request, and restores the communication service.
  • the memory usage of the buffer of the data link layer can also be detected at the RLC entry.
  • the present invention provides a method for restoring the memory of the user plane buffer for this case, and in the method
  • the data link layer shares a buffer as an example, and presets a threshold value for the memory usage of the data link layer buffer, which is smaller than the memory capacity of the data link layer buffer.
  • the method provided in this embodiment includes the following steps:
  • step 702 If the determination is yes, proceed to step 702;
  • the uplink data is normally submitted to the MAC for processing
  • step 702 If the determination is yes, proceed to step 702;
  • the uplink data is normally submitted to the RRC processing.
  • the RLC immediately reports the memory exception message of the buffer to the RRC.
  • the RRC After receiving the memory exception message of the buffer, the RRC sends an instruction to release all radio resources.
  • the data link layer After receiving the instruction sent in step 703, the data link layer initiates release of all radio resources of the data link layer according to the description in section 5.3.12 of the 36.331 protocol, including releasing the MAC configuration and releasing all RLC entities of the established RB. , PDCP entity, memory recovery of the buffer of the data link layer at this time.
  • the RRC re-initiates the establishment of the connection request to resume the communication service.
  • the foregoing embodiments provide a method for checking a buffer memory usage of a data link layer at a PDCP entry and a MAC entry RLC entry of a data link layer, and determining a buffer by using a buffer.
  • the memory usage is greater than or equal to the preset threshold, the memory exception message of the buffer is reported to the RRC, so that the RRC control releases the buffer memory of the data link layer, that is, the buffer memory is quickly and timely. restore.
  • the embodiment of the present invention further provides a recovery device for the user plane buffer memory corresponding to the foregoing method, and the device may be a function module of the user equipment or a function module of the base station. As shown in Figure 8, the device includes:
  • the monitoring unit 81 is configured to monitor the memory usage of the buffer in real time
  • the determining unit 82 is configured to determine whether the memory usage of the buffer is greater than or equal to a preset threshold; the preset threshold is less than a memory capacity of the buffer;
  • the releasing unit 83 is configured to release the memory of the buffer if the judgment result of the determining unit is YES.
  • a recovery device for a user plane buffer memory sets a threshold value for a memory usage of a buffer, and the threshold value is smaller than a memory capacity of the buffer, so that when the buffer The memory of the buffer is released when the memory usage reaches or exceeds the threshold; in the prior art, when the buffer overflows and the related timer expires, the memory of the buffer is released; Compared with the prior art, the solution provided by the invention is simple, and the memory of the user plane buffer can be restored in time and quickly.
  • the monitoring unit 81 is specifically configured to monitor the memory usage of the buffer of the data link layer in real time at an uplink data entry or a downlink data entry or other entry of the data link layer.
  • the uplink data entry is a packet data convergence protocol PDCP entry; the downlink data entry is a media access control MAC entry; and the other entries include a radio link control RLC entry.
  • the monitoring unit 81 includes:
  • a first monitoring subunit configured to check, when the uplink data reaches an uplink data entry of the data link layer, a memory usage of a buffer of the data link layer at the uplink data entry; or, a second monitoring subunit For downlink data entry when downlink data arrives at the data link layer At the time of the port, checking the memory usage of the buffer of the data link layer at the downlink data entry; or, the third monitoring subunit, when the uplink data/downlink data reaches other entries of the data link layer, At this other entry, the memory usage of the buffer of the data link layer is checked.
  • the release unit 83 includes:
  • a reporting subunit configured to report, to the RRC, a memory abnormality message of the buffer if the determining result of the determining unit is YES;
  • the device provided by the embodiment of the present invention can monitor the buffer memory usage of the data link layer in real time at the PDCP entry or the MAC entry or the RLC entry of the data link layer, and determine whether the buffer memory usage is greater than or equal to the pre-determination.
  • the threshold is set, the memory exception message of the buffer is reported to the RRC, so that the RRC control releases the buffer memory of the data link layer, that is, the buffer memory can be recovered quickly and timely.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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Abstract

本发明公开了一种用户面缓冲器内存的恢复方法及装置,涉及通信领域,用以及时快速地恢复用户面缓冲器的内存。所述用户面缓冲器内存的恢复方法,包括:实时监测缓冲器的内存使用量;当所述缓冲器的内存使用量大于或等于预设的门限值时,释放所述缓冲器的内存;所述预设的门限值小于所述缓冲器的内存容量。本发明提供的方案适用于任一需要恢复缓冲器内存的场景。

Description

一种用户面緩冲器内存的恢复方法及装置 技术领域
本发明涉及通信领域,尤其涉及一种用户面緩冲器内存的恢复方法及 装置。
背景技术
LTE ( Long Term Evolution , 长期演进) 网络在比较恶劣的无线环境 下, 会出现 BLER ( Block Error Ratio , 块误码率)升高、 空口丟包、 重传 增加等不良情况, 从而导致 UE ( User Equipment, 用户设备) 在二层协 议 (筒写为 L2 , 即数据链路层协议) 的 RLC ( Radio Link Control, 无线 链路控制) /PDCP ( Packet Data Convergence Protocol, 分组数据汇聚协议) 的发送窗、 接收窗、 重排序窗内緩存大量数据; 另外, 不同的用户面内存 管理实现、 不同的二层协议与外部模块接口实现也可能导致緩冲器 ( Buffer ) 内存使用量进一步增加。
然而出于降低成本、 体积、 功耗等方面的考虑, LTE UE所使用的 L2 緩冲器的内存量将被限定在一定水平, 在恶劣的无线环境下, 可能会出现 L2緩存数据量达到或超过緩冲器内存上限的极端场景,即 L2緩冲器内存 溢出。 此时, 当继续有上下行数据进入 L2时, 便会出现内存分配失败; 一旦出现内存分配失败, 用户面数传将会异常中断, 并有可能引发更为严 重的系统异常。
在现有技术中, 对于 L2緩冲器内存溢出而引起的用户面数传中断, 主要有以下两种恢复机制。
如图 1所示, UE与 eNB ( evolved NodeB , 演进型基站)通信的过程 中,当 L2緩冲器溢出后, RLC PDU (其中 PDU,全称为 Protocol Data Unit, 协议数据单元) 上行重传达到最大次数, 触发 RRC ( Radio Resource Control, 无线资源控制) 重建立流程; 重建立流程失败, RRC 释放所有 RB ( Radio Bearer, 无线承载), 使得 L2緩冲器内存恢复。 具体过程如下:
11、 L2緩冲器溢出时, 上行无法再接收新的上层数据;
12、 对于 RLC上行发送窗内的 PDU , 在 t-PollRetransmit ( RLC的定 时器) 超时后进行重传;
13、 由于 L2緩冲器溢出, L2 MAC ( Medium Access Control, 媒体 接入控制 ) 无法接收来自 PHY ( Physical Layer, 物理层 ) 上报的 PDU, 即 RLC也无法收到来自基站的状态 PDU;
14、 RLC上行 PDU在 t-PollRetmnsmit超时后继续进行重传,直到达 到最大重传次数;
15、 RLC向 RRC上 4艮无线链路失败信令 RLC_ERR_IND;
16、 RRC按 36.331协议 5.3.11节规定, 发起 RRC连接重建立流程, 启动 T301定时器;
17、 L2执行重建立流程, 按 36.322、 36.323协议, L2数据继续緩存 于 PDCP ,但由于 L2緩冲器得不到释放,此时 L2数传功能仍不可用, RRC 连接重建立请求发送失败;
18、 RRC T301超时, 按照 36.331协议 5.3.7.7节和 5.3.12节规定释 放所有 RB ;
19、 L2所有緩冲器内存得到释放, 即緩冲器内存恢复。
如图 2所示, UE与 eNB通信的过程中, L2緩冲器溢出后, L2数传 不可用, eNB主动释放 UE, UE状态与 eNB不一致, 最终触发 UE RRC 释放所有 RB, 使得 L2緩冲器恢复。 具体过程如下:
21、 L2緩冲器溢出时, 上下行无法再接收新的数据;
22、 eNB监测到 UE状态异常, 发起 RRC连接释放消息, 主动释放
UE;
23、 由于 L2内存溢出, 此时无法接收 RRC连接释放消息, UE仍处 于连接态;
24、 由于 eNB 已释放 UE, UE状态与 eNB 不一致, PHY将检测到 失步, 上报给 RRC; 或者, MAC可能出现 TA超时, 并将 TA超时上报 给 RRC;
25、 RRC按 36.331协议 5.3.11节规定, 发起连接重建立流程, 并且 启动 T301定时器;
26、 L2执行重建立流程, 数据应继续緩存于 PDCP , 但 PDCP得不 到释放, 此时 L2数传功能仍不可用, RRC连接重建立请求发送失败;
27、 RRC T301超时, 按照 36.331协议 5.3.7.7节和 5.3.12节规定释 放所有 RB ;
28、 L2所有緩冲器内存得到释放, 即緩冲器内存恢复。
图 1、 图 2所示的方法是针对 UE 二层协议緩冲器内存溢出时而采用 的常规内存恢复方法, 且两种方法主要是依赖相关协议定时器保护, 在其 超时后进行异常释放操作,由于相关定时器长度及其超时后的异常处理流 程均要遵从协议处理, 整个恢复的过程可能比较复杂, 从而导致内存恢复 时间长, 进而会造成 UE长时间处于异常状态。
发明内容
本发明的实施例提供一种用户面緩冲器内存的恢复方法及装置,用以 及时快速地恢复用户面緩冲器的内存。
为达到上述目的, 本发明的实施例采用如下技术方案:
一种用户面緩冲器内存的恢复方法, 包括:
实时监测缓沖器的内存使用量;
当所述緩冲器的内存使用量大于或等于预设的门限值时,释放所述緩 冲器的内存; 所述预设的门限值小于所述緩冲器的内存容量。
一种用户面緩冲器内存的恢复装置, 包括:
监测单元, 用于实时监测緩冲器的内存使用量;
判断单元,用于判断所述緩冲器的内存使用量是否大于或等于预设的 门限值; 所述预设的门限值小于所述緩冲器的内存容量;
释放单元, 用于在判断单元的判断结果为是的情况下, 释放所述缓沖 器的内存。
本发明实施例提供的一种用户面緩冲器内存的恢复方法及装置,对緩 沖器的内存使用量设定门限值, 且该门限值小于緩冲器的内存容量, 使得 当緩冲器的内存使用量达到或超过该门限值时就释放緩冲器的内存;而现 有技术中, 当緩冲器溢出并且在相关定时器超时的情况下, 才释放该缓沖 器的内存; 与现有技术相比, 本发明提供的方案流程筒单, 可以及时快速 地恢复用户面緩冲器的内存。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员 来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的 附图。
图 1为现有技术中的一种用户面緩冲器的内存恢复的方法流程图; 图 2为现有技术中的另一种用户面緩冲器的内存恢复的方法流程图; 图 3 为本发明实施例提供的一种用户面緩冲器的内存恢复的方法示 意图;
图 4 为本发明实施例提供的另一种用户面緩冲器的内存恢复的方法 示意图;
图 5 为本发明实施例提供的一种用户面緩冲器的内存恢复的方法流 程图;
图 6 为本发明实施例提供的另一种用户面緩冲器的内存恢复的方法 流程图;
图 7 为本发明实施例提供的又一种用户面緩冲器的内存恢复的方法 流程图;
图 8 为本发明实施例提供的一种用户面緩冲器的内存恢复的装置框 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,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 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,都属于本发明保护的 范围。
在用户设备和基站进行通信的过程中,为了及时快速地恢复用户面緩 沖器的内存, 本发明实施例提供了一种用户面緩冲器内存的恢复方法, 该 方法的执行主体可以为用户设备 ( User Equipment , 筒称为 UE ) 的功能 模块, 当然也可以为基站 ( evolved Node B , 简称为 eNB ) 的功能模块。 下面的各个实施例以 LTE UE的用户面緩冲器内存的恢复方法为例进行说 明, 此时, 该方法的执行主体可以为 UE的功能模块。
由于用户面緩冲器主要包括数据链路层的緩冲器,故在本发明实施例 中以数据链路层的緩冲器的内存恢复方法为例进行说明。在数据链路层通 常包括 PDCP ( Packet Data Convergence Protocol, 分组数据汇聚协议)、 RLC ( Radio Link Control, 无线链路控制)、 MAC ( Medium Access Control 媒体接入控制)。 对于数据链路层可以只有一个緩冲器, 当然数据链路层 也可以有多个緩冲器,例如数据链路层的三个协议可以有各自对应的緩冲 器, 即分别为 PDCP緩冲器、 RLC緩冲器以及 MAC緩冲器。
若 LTE UE的数据链路层只有一个緩冲器, 则如图 3所示, 该方法具 体包括以下步骤:
301、 实时监测緩冲器的内存使用量;
例如,本步骤可以为在数据链路层的上行数据入口或下行数据入口或 其他入口实时监测数据链路层的緩冲器的内存使用量。
所述上行数据入口可以为 PDCP入口,所述下行数据入口可以为 MAC 入口, 所述其他入口可以为 RLC入口。
302、 判断緩冲器的内存使用量是否大于或等于预设的门限值; 预先对数据链路层的緩冲器设定一个门限值,该门限值要小于该緩冲 器的内存容量。 所述緩冲器的内存容量即该緩冲器的最大内存使用量, 若 緩沖器的内存使用量大于该緩冲器的内存容量, 则该緩冲器的内存溢出。
本发明实施例中判断緩冲器的内存使用量和预设的门限值的大小关 系, 无论该緩冲器的内存是否溢出, 只要緩沖器的内存使用量大于或等于 预设的 ί!限值, 就得出该緩冲器的内存异常的结论。
303、 若步骤 302判断为是, 则释放所述緩冲器的内存。
释放所述緩冲器的内存, 即该緩冲器的内存恢复。
优选地, 步骤 301可以为:
当上行数据到达所述数据链路层的上行数据入口时,在该上行数据入 口检查数据链路层的緩冲器的内存使用量; 也就是说, 当上行数据到达数 据链路层的 PDCP入口时,在 PDCP入口检查数据链路层的緩冲器的内存 使用量; 或者,
当下行数据到达所述数据链路层的下行数据入口时,在该下行数据入 口检查数据链路层的緩冲器的内存使用量; 也就是说, 当下行数据到达数 据链路层的 MAC入口时, 在 MAC入口检查数据链路层的緩冲器的内存 使用量; 或者,
当上行数据 /下行数据到达所述数据链路层的其他入口时, 在该其他 入口检查数据链路层的緩沖器的内存使用量; 也就是说, 当上行数据 /下 行数据到达数据链路层的 RLC入口时, 在 RLC入口检查数据链路层的緩 沖器的内存。
若 LTE UE的数据链路层有三个緩冲器, 分别为 PDCP緩冲器、 RLC 緩冲器以及 MAC緩冲器, 则如图 4所示, 该方法具体包括以下步骤:
401、 实时监测数据链路层的緩冲器的内存使用量, 并判断该緩冲器 的内存使用量是否大于或等于预设的门限值;
由于数据链路层有三个緩沖器, 则每个緩冲器都有各自的内存容量。 在本发明实施例中对每个緩冲器都预先设置一门限值,且对于每个緩冲器 而言, 该緩冲器预设的门限值小于该緩冲器的内存容量。
本步驟可以为: 在 PDCP入口实时监测 PDCP緩冲器的内存使用量, 并判断 PDCP緩冲器的内存使用量是否大于或等于 PDCP緩冲器预设的门 限值; 或,
在 MAC入口实时监测 MAC緩沖器的内存使用量 , 并判断 MAC緩 冲器的内存使用量是否大于或等于 MAC緩冲器预设的门限值; 或,
在 RLC入口实时监测 RLC緩冲器的内存使用量, 并判断 RLC緩冲 器的内存使用量是否大于或等于 RLC緩冲器预设的门限值。
优选地, 本步骤可以为:
当上行数据到达 PDCP入口时,在 PDCP入口检查 PDCP緩冲器的内 存使用量,并判断 PDCP緩冲器的内存使用量是否大于或等于 PDCP緩冲 器预设的门限值; 或,
当下行数据到达 MAC入口时, 在 MAC入口检查 MAC緩冲器的内 存使用量, 并判断 MAC緩冲器的内存使用量是否大于或等于 MAC緩冲 器预设的门限值; 或,
当上行数据 /下行数据到达 RLC入口时, 在 RLC入口检查 RLC緩冲 器的内存使用量, 并判断 RLC緩冲器的内存使用量是否大于或等于 RLC 緩冲器预设的门限值。
402、 若步骤 401的判断为是, 则释放数据链路层的緩沖器的内存。 本步骤包括: 若判断 PDCP緩冲器的内存使用量大于或等于 PDCP緩 沖器预设的门限值, 则释放 PDCP緩沖器的内存, 或释放数据链路层的所 有緩冲器 (包括: PDCP緩冲器、 MAC緩冲器、 RLC緩冲器) 的内存; 若判断 MAC緩冲器的内存使用量大于或等于 MAC緩冲器预设的门 限值, 则释放 MAC緩冲器的内存, 或释放数据链路层的所有緩冲器 (包 括: PDCP緩冲器、 MAC緩冲器、 RLC緩冲器) 的内存;
若判断 RLC緩冲器的内存使用量大于或等于 RLC緩沖器预设的门限 值, 则释放 RLC緩冲器的内存, 或释放数据链路层的所有緩冲器(包括: PDCP緩冲器、 MAC緩冲器、 RLC緩冲器) 的内存。
本发明提供的方案,除了应用于 LTE系统中,还可以适用于 WCDMA 及 TD-SCDMA用户面緩冲器的内存恢复。
本发明实施例提供的一种用户面緩冲器内存的恢复方法,对緩冲器的 内存使用量设定门限值, 且该门限值小于緩冲器的内存容量, 使得当缓沖 器的内存使用量达到或超过该门限值时就释放緩冲器的内存;而现有技术 中, 当緩沖器溢出并且在相关定时器超时的情况下, 才释放该緩冲器的内 存; 与现有技术相比, 本发明提供的方案流程简单, 可以及时快速地恢复 用户面緩冲器的内存。 下面将针对用户设备和基站通信过程中,用户设备的数据链路层緩冲 器的恢复方法进行详细说明。
如图 5所示, 本发明针对用户设备向基站发送上行数据的过程, 提供 一种具体的用户面緩冲器内存的恢复方法,且在该方法中以数据链路层共 用一个緩冲器为例, 并对该数据链路层緩冲器的内存使用量预设一门限 值, 该门限值小于该数据链路层緩冲器的内存容量。 本实施例提供的方法 包括以下步骤:
501、 用户设备的 APP ( Application Layer, 应用层) 向基站发送上行 数据, 当上行数据到达 PDCP入口时, 检查数据链路层的緩冲器的内存使 用量;
502、 判断数据链路层的緩沖器的内存使用量是否大于或者等于预设 的门限值;
若判断为是, 则进行步骤 503 ;
若判断为否, 则将上行数据正常递交给 RLC处理。
503、 PDCP立即向 RRC ( Radio Resource Control, 无线资源控制) 上报緩冲器的内存异常消息;
504、 RRC接收到緩冲器的内存异常消息后, 由 RRC发出释放所有 无线资源的指令;
505、 数据链路层接收到步骤 504 中发出的指令后, 按 36.331 协议 5.3.12节的描述释放数据链路层的所有无线资源 , 具体包括释放 MAC配 置以及释放所有已建立 RB的 RLC实体、 PDCP实体; 也就是说, 将 MAC 配置、 RLC实体、 PDCP实体所占用的无线资源释放掉, 当然包括将三者 所占用的数据链路层的緩冲器的内存释放掉,即数据链路层的緩冲器的内 存恢复。
由于释放无线资源的过程, 会出现短暂的数据交互中断, 故本方法在 完成数据链路层的内存恢复后, 还可以包括步骤 506。
506、 RRC重新发起建立连接请求, 恢复通信业务。
如图 6所示, 本发明针对基站向用户设备发送下行数据的过程, 提供 一种具体的用户面緩冲器内存的恢复方法,且在该方法中以数据链路层共 用一个緩冲器为例, 并对该数据链路层緩冲器的内存使用量预设一门限 值, 该门限值小于该数据链路层緩沖器的内存容量。 本实施例提供的方法 包括以下步骤:
601、 基站向用户设备发送下行数据, 当下行数据到达 MAC入口时, 检查数据链路层的緩冲器的内存使用量;
602、 判断数据链路层的緩冲器的内存使用量是否大于或者等于预设 的门限值;
若判断为是, 则进行步骤 603 ;
若判断为否, 则将下行数据正常递交给 RLC处理。
603、 MAC立即向 RRC上报緩冲器的内存异常消息;
604、 RRC接收到緩冲器的内存异常消息后, 由 RRC发出释放所有 无线资源的指令;
605、 数据链路层接收到步骤 604 中发出的指令后, 按 36.331 协议 5.3.12节的描述发起释放数据链路层的所有无线资源,具体包括释放 MAC 配置以及释放所有已建立 RB的 RLC实体、 PDCP实体, 此时数据链路层 的緩冲器的内存恢复。
606、 RRC重新发起建立连接请求, 恢复通信业务。
如图 7所示, 还可以在 RLC入口检测数据链路层的緩冲器的内存使 用量, 本发明针对这一情况提供一种用户面緩冲器内存的恢复方法, 且在 该方法中以数据链路层共用一个緩冲器为例,并对该数据链路层緩冲器的 内存使用量预设一门限值, 该门限值小于该数据链路层緩冲器的内存容 量。 本实施例提供的方法包括以下步骤:
701、 当上行数据到达 RLC入口时, 检查数据链路层的緩冲器的内存 使用量,并判断数据链路层的緩冲器的内存使用量是否大于或者等于预设 的门限值;
若判断为是, 则进行步骤 702;
若判断为否, 则将上行数据正常递交给 MAC处理;
或者, 当下行数据到达 RLC入口时, 检查数据链路层的緩冲器的内 存使用量,并判断数据链路层的緩冲器的内存使用量是否大于或者等于预 设的门限值;
若判断为是, 则进行步骤 702;
若判断为否, 则将上行数据正常递交给 RRC处理。
702、 RLC立即向 RRC上报緩冲器的内存异常消息;
703、 RRC接收到緩冲器的内存异常消息后, 发出释放所有无线资源 的指令;
704、 数据链路层接收到步骤 703 中发出的指令后, 按 36.331 协议 5.3.12节的描述发起释放数据链路层的所有无线资源,具体包括释放 MAC 配置以及释放所有已建立 RB的 RLC实体、 PDCP实体, 此时数据链路层 的緩冲器的内存恢复。
705、 RRC重新发起建立连接请求, 恢复通信业务。
上述各实施例提供的方法, 分别在数据链路层的 PDCP 入口、 MAC 入口 RLC入口检查数据链路层的緩冲器内存使用量, 并通过判断緩冲器 内存使用量大于或等于预设的门限值时, 就向 RRC上报緩冲器的内存异 常消息, 从而使得 RRC控制释放数据链路层的緩冲器内存, 即緩冲器内 存得以及时快速地恢复。 本发明实施例还提供与上述方法相对应的用户面緩冲器内存的恢复 装置, 该装置可以是用户设备的功能模块, 也可以是基站的功能模块。 如 图 8所示, 该装置包括:
监测单元 81 , 用于实时监测緩冲器的内存使用量;
判断单元 82, 用于判断所述緩冲器的内存使用量是否大于或等于预 设的门限值; 所述预设的门限值小于所述緩冲器的内存容量;
释放单元 83, 用于在判断单元的判断结果为是的情况下, 释放所述 緩沖器的内存。
本发明实施例提供的一种用户面緩冲器内存的恢复装置,对緩冲器的 内存使用量设定门限值, 且该门限值小于緩冲器的内存容量, 使得当緩冲 器的内存使用量达到或超过该门限值时就释放緩冲器的内存;而现有技术 中, 当緩冲器溢出并且在相关定时器超时的情况下, 才释放该緩冲器的内 存; 与现有技术相比, 本发明提供的方案流程简单, 可以及时快速地恢复 用户面緩冲器的内存。
优选地, 监测单元 81具体用于在数据链路层的上行数据入口或下行 数据入口或其他入口实时监测数据链路层的緩冲器的内存使用量。
所述上行数据入口为分组数据汇聚协议 PDCP入口;所述下行数据入 口为媒体接入控制 MAC入口; 所述其他入口包括无线链路控制 RLC入 口 。
优选地, 所述监测单元 81 包括:
第一监测子单元,用于当上行数据到达所述数据链路层的上行数据入 口时, 在该上行数据入口检查数据链路层的緩冲器的内存使用量; 或者, 第二监测子单元,用于当下行数据到达所述数据链路层的下行数据入 口时, 在该下行数据入口检查数据链路层的緩冲器的内存使用量; 或者, 第三监测子单元, 用于当上行数据 /下行数据到达所述数据链路层的 其他入口时, 在该其他入口检查数据链路层的緩冲器的内存使用量。
优选地, 所述释放单元 83包括:
上报子单元, 用于在判断单元的判断结果为是的情况下, 向 RRC上 报所述緩冲器的内存异常消息;
发出子单元, 用于在 RRC接收到所述緩冲器的内存异常消息后, 由 RRC发出释放所有无线资源的指令;
释放子单元, 用于在数据链路层接收到所述指令的情况下, 释放数据 链路层所有无线资源,包括释放 MAC配置以及释放所有已建立 RB的 RLC 实体、 PDCP实体。
本发明实施例提供的装置, 可以在数据链路层的 PDCP入口或 MAC 入口或 RLC入口实时监测数据链路层的緩冲器内存使用量, 并通过判断 緩冲器内存使用量大于或等于预设的门限值时, 就向 RRC上报緩冲器的 内存异常消息, 从而使得 RRC控制释放数据链路层的緩冲器内存, 即緩 冲器内存得以及时快速地恢复。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到 本发明可借助软件加必需的通用硬件的方式来实现, 当然也可以通过硬 件, 但很多情况下前者是更佳的实施方式。 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可读取的存储介质中, 如计算机的软 盘, 硬盘或光盘等, 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的方法。 以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局限于 此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可轻易 想到的变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明的 保护范围应以所述权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种用户面緩冲器内存的恢复方法, 其特征在于, 包括: 实时监测緩冲器的内存使用量;
当所述緩冲器的内存使用量大于或等于预设的门限值时, 释放所述緩 冲器的内存; 所述预设的门限值小于所述緩冲器的内存容量。
2、 根据权利要求 1所述的方法, 其特征在于, 所述实时监测緩沖器的 内存使用量包括:
在数据链路层的上行数据入口或下行数据入口或其他入口实时监测数 据链路层的緩冲器的内存使用量。
3、 根据权利要求 2所述的方法, 其特征在于, 所述在数据链路层的上 行数据入口或下行数据入口实时监测数据链路层的緩冲器的内存使用量包 括:
当上行数据到达所述数据链路层的上行数据入口时, 在该上行数据入 口检查数据链路层的緩冲器的内存使用量; 或者,
当下行数据到达所述数据链路层的下行数据入口时, 在该下行数据入 口检查数据链路层的緩冲器的内存使用量; 或者,
当上行数据 /下行数据到达所述数据链路层的其他入口时, 在该其他入 口检查数据链路层的緩冲器的内存使用量。
4、 根据权利要求 2或 3所述的方法, 其特征在于, 所述上行数据入口 为分组数据汇聚协议 PDCP入口; 所述下行数据入口为媒体接入控制 MAC 入口; 所述其他入口包括无线链路控制 RLC入口。
5、 根据权利要求 1所述的方法, 其特征在于, 所述当所述緩沖器的内 存使用量大于或等于预设的门限值时, 释放所述緩冲器的内存包括:
当所述緩冲器的内存使用量大于或等于预设的门限值时, 向无线资源 控制 RRC上报所述緩冲器的内存异常消息;
RRC接收到所述緩冲器的内存异常消息后, 由 RRC发出释放所有无 线资源的指令; 数据链路层接收到该指令后, 释放数据链路层的所有无线资源, 包括 释放 MAC配置以及释放所有已建立无线承载 RB的 RLC实体、 PDCP实体。
6、 一种用户面緩冲器内存的恢复装置, 其特征在于, 包括:
监测单元, 用于实时监测緩冲器的内存使用量;
判断单元, 用于判断所述緩冲器的内存使用量是否大于或等于预设的 门限值; 所述预设的门限值小于所述緩冲器的内存容量;
释放单元, 用于在判断单元的判断结果为是的情况下, 释放所述緩冲 器的内存。
7、 根据权利要求 6所述的装置, 其特征在于, 所述监测单元具体用于 在数据链路层的上行数据入口或下行数据入口或其他入口实时监测数据链 路层的緩冲器的内存使用量。
8、 根据权利要求 7所述的装置, 其特征在于, 所述监测单元包括: 第一监测子单元, 用于当上行数据到达所述数据链路层的上行数据入 口时, 在该上行数据入口检查数据链路层的緩冲器的内存使用量; 或者, 第二监测子单元, 用于当下行数据到达所述数据链路层的下行数据入 口时, 在该下行数据入口检查数据链路层的緩冲器的内存使用量; 或者, 第三监测子单元, 用于当上行数据 /下行数据到达所述数据链路层的其 他入口时, 在该其他入口检查数据链路层的緩冲器的内存使用量。
9、 根据权利要求 7或 8所述的装置, 其特征在于, 所述上行数据入口 为分组数据汇聚协议 PDCP入口; 所述下行数据入口为媒体接入控制 MAC 入口; 所述其他入口包括无线链路控制 RLC入口。
10、 根据权利要求 6所述的装置, 其特征在于, 所述释放单元包括: 上报子单元, 用于在判断单元的判断结果为是的情况下, 向 RRC上报 所述緩冲器的内存异常消息;
发出子单元, 用于在 RRC 接收到所述緩冲器的内存异常消息后, 由 RRC发出释放所有无线资源的指令;
释放子单元, 用于在数据链路层接收到所述指令的情况下, 释放数据 链路层所有无线资源,包括释放 MAC配置以及释放所有已建立 RB的 RLC 实体、 PDCP实体。
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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103813366B (zh) * 2012-11-07 2017-12-08 锐迪科(重庆)微电子科技有限公司 一种处理器异常的恢复方法和移动终端
CN103345447B (zh) * 2013-06-21 2016-06-08 大唐移动通信设备有限公司 内存管理方法及系统
CN104572448A (zh) * 2014-12-23 2015-04-29 大唐移动通信设备有限公司 一种线程堆栈的使用情况的实现方法和装置
US9921994B1 (en) * 2015-02-26 2018-03-20 Marvell International Ltd. Dynamic credit control in multi-traffic class communication system
CN106161676B (zh) * 2015-03-27 2019-05-17 瑞昱半导体股份有限公司 无线用户设备的控制电路
CN108605257B (zh) * 2016-12-14 2020-12-04 华为技术有限公司 网络故障处理方法及设备
CN106776360B (zh) * 2017-02-28 2018-04-17 建荣半导体(深圳)有限公司 一种芯片及电子设备
US10237784B2 (en) * 2017-03-24 2019-03-19 Motorola Mobility Llc Split bearer packet data converge protocol protocol data unit routing
CN108934044B (zh) * 2017-05-27 2020-10-09 华为技术有限公司 数据包传输方法及设备
US11941445B2 (en) * 2021-09-13 2024-03-26 International Business Machines Corporation RLC channel management for low memory 5G devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005006195A2 (en) * 2003-06-30 2005-01-20 Raytheon Company System and method for selectively affecting data flow to or from a memory device
CN1761356A (zh) * 2004-10-11 2006-04-19 中兴通讯股份有限公司 一种码分多址系统中公共信道向专用信道的类型转换方法
CN1936859A (zh) * 2005-09-30 2007-03-28 康佳集团股份有限公司 一种内存监控方法
CN101833512A (zh) * 2010-04-22 2010-09-15 中兴通讯股份有限公司 一种内存回收方法及其装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002082763A2 (en) * 2001-02-20 2002-10-17 Innomedia Pte Ltd. System and method for establishing channels for a real time media streaming communication
EP1659729B1 (en) * 2003-09-02 2010-05-26 Huawei Technologies Co Ltd A method for choosing the transmission path of the real-time traffic data
KR100564610B1 (ko) * 2004-02-04 2006-03-28 삼성전자주식회사 다중 방송 채널 신호를 디멀티플렉싱하는 디지털 방송수신기의 디멀티플렉서 및 디멀티플렉싱 방법
JP4379800B2 (ja) * 2004-07-12 2009-12-09 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 受信装置およびそのメモリ解放方法
JP4373887B2 (ja) * 2004-09-30 2009-11-25 Okiセミコンダクタ株式会社 パケット処理方法
US20100302919A1 (en) * 2005-10-27 2010-12-02 Mediatek Inc. Optical Recording Method and Apparatus
JP4757109B2 (ja) * 2006-06-23 2011-08-24 富士通株式会社 データ通信プログラム
CN101132308B (zh) * 2006-08-22 2010-04-14 华为技术有限公司 无线通信网络的数据传输方法、节点及系统
KR101178263B1 (ko) * 2007-12-20 2012-08-30 가부시키가이샤 엔티티 도코모 이동국, 기지국장치, 통신제어방법 및 이동통신시스템
TWI407441B (zh) * 2009-03-20 2013-09-01 Phison Electronics Corp 快閃記憶體寫入方法及使用此方法的儲存系統與控制器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005006195A2 (en) * 2003-06-30 2005-01-20 Raytheon Company System and method for selectively affecting data flow to or from a memory device
CN1761356A (zh) * 2004-10-11 2006-04-19 中兴通讯股份有限公司 一种码分多址系统中公共信道向专用信道的类型转换方法
CN1936859A (zh) * 2005-09-30 2007-03-28 康佳集团股份有限公司 一种内存监控方法
CN101833512A (zh) * 2010-04-22 2010-09-15 中兴通讯股份有限公司 一种内存回收方法及其装置

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