WO2012010013A1 - 混合自动重传请求进程的分配方法及装置 - Google Patents

混合自动重传请求进程的分配方法及装置 Download PDF

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Publication number
WO2012010013A1
WO2012010013A1 PCT/CN2011/075003 CN2011075003W WO2012010013A1 WO 2012010013 A1 WO2012010013 A1 WO 2012010013A1 CN 2011075003 W CN2011075003 W CN 2011075003W WO 2012010013 A1 WO2012010013 A1 WO 2012010013A1
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Prior art keywords
node
harq process
notification message
rnc
harq
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PCT/CN2011/075003
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English (en)
French (fr)
Inventor
张海燕
柯雅珠
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP11809201.4A priority Critical patent/EP2597918B1/en
Priority to US13/811,274 priority patent/US20130170408A1/en
Publication of WO2012010013A1 publication Critical patent/WO2012010013A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • 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
    • H04L1/1822Automatic repetition systems, e.g. Van Duuren systems involving configuration of automatic repeat request [ARQ] with parallel processes
    • 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
    • H04L1/1825Adaptation of specific ARQ protocol parameters according to transmission conditions
    • 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
    • H04L1/1864ARQ related signaling
    • 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
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1896ARQ related signaling

Definitions

  • the present invention relates to the field of communications, and in particular to a hybrid automatic repeat request (HARQ) process allocation method, Node B (NodeB) ) and Radio Network Controller (RNC).
  • HARQ hybrid automatic repeat request
  • NodeB Node B
  • RNC Radio Network Controller
  • HARQ is one of the key technologies of HSDPA. It can match the number of output bits after channel coding with the total number of bits mapped into the HS-PDSCH physical channel set.
  • the HARQ function is defined by the Redundancy Version (RV) parameter. Control, the precise setting of the HARQ output bits depends on the number of input bits, the number of output bits, and the RV parameters.
  • the HARQ function includes two rate matching and one virtual incremental redundancy (IR) buffer, also called soft channel capacity, which determines the first rate matching of HARQ.
  • IR virtual incremental redundancy
  • the soft channel capacity affects the network side.
  • the redundancy version affects the transmission capability of the terminal to a certain extent. The larger the capacity, the larger the effective transmission information, and the higher the rate of the terminal.
  • the UE may have multiple HARQ processes at the same time, and the sum of the virtual IR buffers of multiple HARQ processes may not exceed the total number of soft channels of the UE capability class.
  • the transmitting side and the receiving side need to use the same number of HARQ processes and their virtual IR buffers, and use the same total number of soft channel bits.
  • Current number of HARQ processes and cache size of each HARQ process in the current protocol Process
  • Implicit At this time, the Node B only needs to return the number of allocated HARQ processes, and the Node B and the UE obtain each HARQ based on the total number of bits of the soft channel corresponding to the UE capability level divided by the number of HARQ processes.
  • the 3GPP definition can only pass the following enumeration values: Integer(800 .. 16000 by step of 800, 17600 .. 32000 By step of 1600, 36000 .. 80000 by step of 4000, 88000 .. 160000 by step of 8000, 176000 .. 304000 by step of 16000)
  • the 25.306 protocol specifies the corresponding total number of soft channel bits for each UE capability class.
  • the 25.331 protocol specifies, by CR3813, the capability class and corresponding soft channel total that the UE should use when configuring the Media Access Control-enhanced high speed (MAC-ehs) or dual carrier capability. The number of bits. In this way, the network side can perform the same processing as the UE when configuring the UE capability class and allocating the Process Memory Size.
  • the protocol does not stipulate that the RNC is for reasons other than CR3813 (for example, the operator limits the maximum bit rate to 7.2 Mbps due to market demand; or the network side uses the cache from the most economical point of view, for category 19,
  • the Node B cannot determine how much soft channel total bit number should be used to allocate the HARQ process to the UE.
  • the Process Memory Size allocated by the Node B is not.
  • a primary object of the present invention is to provide a method for allocating HARQ processes, a Node B, and an RNC to solve at least the above problems.
  • An aspect of the present invention provides a method for allocating a hybrid automatic repeat request process, including: the RNC carries the downgraded capability category of the UE in a notification message and sends it to the node B; and the node B uses the degraded capability category.
  • the total number of soft channel bits allocates a HARQ process for the UE.
  • the notification message further carries indication information for indicating whether the manner in which the Node B notifies the HARQ process is restricted to the explicit mode.
  • the method further includes: the node B will allocate The cache size of the HARQ process and the number of HARQ processes inform the UE.
  • the method before the RNC sends a notification message carrying the indication information indicating that the method of notifying the node B to notify the HARQ process to the explicit mode, the method further includes: the RNC determining that the reason for the degradation of the UE is not a predetermined reason, wherein the predetermined reason includes : Configure Media Access Control - Enhance high speed MAC-ehs or configure dual carrier capability.
  • the RNC determines that the reason for the degradation of the UE is a predetermined cause, and the RNC sends a notification message carrying indication information indicating that the manner in which the Node B is not notified to the HARQ process is restricted to the explicit mode, and the degraded capability category is used at the node B.
  • the method further includes: the Node B determining whether to notify the UE of the HARQ process by using the display mode or the implicit mode, and if the display mode is used, the Node B buffering the HARQ process.
  • the number and the number of HARQ processes inform the UE; if the implicit mode is used, the Node B notifies the UE of the number of HARQ processes.
  • the RNC carries the UE's degraded capability class in the notification message and sends the message to the Node B.
  • the SRNC sends a notification message carrying the UE's degraded capability class to the Node B.
  • the SRNC carries the UE's degraded capability class.
  • the notification message is sent to the DRNC, and the DRNC sends the received notification message to the Node B.
  • the indication information is limited to indicate whether the manner in which the Node B is notified to the HARQ process is restricted to an explicit manner by: indicating whether the manner in which the Node B is notified to the HARQ process is restricted to be displayed by whether the first indication cell is carried in the indication information. And indicating, by the value of the second indicator cell carried in the indication information, whether the manner in which the Node B is notified to the HARQ process is restricted to an explicit mode; wherein the indication information includes at least one of the following: a high speed downlink shared channel frequency The duplex information, the high-speed downlink shared channel information to be modified, and the high-speed downlink shared channel information to be asynchronously modified.
  • the notification message includes at least one of the following: a radio link setup request, a radio link reconfiguration preparation, and a radio link reconfiguration request.
  • a Node B including: a receiving module, configured to receive a notification message from an RNC, where the notification message includes: a capability category after the UE is degraded; an allocation module, It is set to allocate the HARQ process to the UE by using the total number of soft channels corresponding to the degraded capability class.
  • the Node B further includes: a notification module, configured to notify the UE of the buffer size of the allocated HARQ process and the number of the HARQ process, if the manner in which the RNC indicates that the Node B is notified of the HARQ process is restricted to the explicit mode.
  • a radio network controller includes: a configuration module, configured to configure a capability category after the UE is degraded in a notification message; and a sending module configured to send a notification message to the Node B.
  • the radio network controller further includes: a determining module, configured to determine whether the degraded reason of the UE is configured to configure MAC-ehs or have dual carrier capability; and the configuration module is further configured to: if the judgment result of the determining module is yes, Configuring, in the notification message, indication information indicating that the manner in which the Node B is not notified to the HARQ process is restricted to the explicit mode; if the determination result of the determination module is negative, configuring the notification message to notify the node B The manner of the HARQ process is limited to the explicit mode indication information.
  • a determining module configured to determine whether the degraded reason of the UE is configured to configure MAC-ehs or have dual carrier capability
  • the configuration module is further configured to: if the judgment result of the determining module is yes, Configuring, in the notification message, indication information indicating that the manner in which the Node B is not notified to the HARQ process is restricted to the explicit mode; if the determination result of the determination module is negative, configuring the notification
  • the RNC is used to notify the Node B of the degraded capability class of the UE, and the Node B allocates the HARQ process according to the total number of soft channels corresponding to the capability category, thereby solving the inaccurate allocation of the Process Memory Size and causing system performance.
  • the problem of the drop causes the Node B to perform the HARQ process allocation according to the capability class after the current UE is degraded, thereby improving the accuracy of the allocation and improving the performance of the system.
  • FIG. 1 is a flow chart showing a method for allocating a HARQ process according to a first embodiment of the present invention
  • FIG. 2 is a block diagram showing a structure of a node B according to a first embodiment of the present invention
  • FIG. 2 is a block diagram showing a structure of a node B according to a first embodiment of the present invention
  • FIG. 4 is a structural block diagram of an RNC according to the first embodiment of the present invention
  • 5 is a detailed structural block diagram of an RNC according to Embodiment 1 of the present invention
  • FIG. 6 is a detailed flowchart of a method for allocating a HARQ process according to Embodiment 3 of the present invention
  • FIG. 7 is a flowchart according to an embodiment of the present invention. Detailed flowchart of the method for allocating the HARQ process of the fourth embodiment
  • FIG. 8 is a detailed flowchart of the method for allocating the HARQ process according to the fifth embodiment of the present invention
  • FIG. 9 is the allocation of the HARQ process according to the sixth embodiment of the present invention.
  • Step S102 A capability class after the RNC degrades the UE
  • the carrier is sent to the node B in the notification message.
  • step S104 the node B allocates the HARQ process to the UE by using the total number of soft channels corresponding to the degraded capability class.
  • the notification message may further include a method for indicating whether to notify the node B of the HARQ process.
  • the UE when the UE performs its own HARQ process allocation according to the HARQ process allocated by the Node B, the UE may not be able to accurately implement the allocation because the UE may not be able to know why it is currently downgraded, because the jt ⁇ , in order to prevent the UE and the node.
  • the process memory size of the two sides is inconsistent and the decoding error occurs.
  • the RNC may indicate that the manner in which the Node B notifies the HARQ process is restricted to an explicit mode; When the HARQ process is notified to the UE, the notification can be notified only by using the display mode.
  • the node notifies the UE of the buffer size of the allocated HARQ process and the number of the HARQ process.
  • the RNC may determine whether to carry the indication information by using the following judgment.
  • the following may also be adopted. The decision to decide whether to set the indication to an explicit mode:
  • the RNC determines whether the reason for the degradation of the UE is the predetermined reason (where the predetermined reason includes: configuring the MAC-ehs or having the dual-carrier capability), and if yes, determining that the indication information is not carried in the notification message, so as to reduce the overhead of the notification message, or Transmitting a notification message carrying indication information indicating that the Node B is not notified to the HARQ process in the explicit manner, so as to reduce the processing procedure of the Node B and the overhead of notifying the notification message of the allocated HARQ process; otherwise, sending Carrying a notification message indicating that the manner in which the Node B notifies the HARQ process is restricted to the explicit mode indication information, so that the UE correctly performs the assignment of the HARQ process without knowing the capability class of the current degraded.
  • the predetermined reason includes: configuring the MAC-ehs or having the dual-carrier capability
  • the Node B can also freely decide which way to notify the assigned HARQ process, that is, the Node B can judge by itself: the Node B determines The HARQ process is notified to the UE in the display mode or the implicit mode. If the display mode is used, the Node B notifies the UE of the cache size of the HARQ process and the number of the HARQ process; if the implicit mode is used, the Node B will process the HARQ process. The number informs the UE.
  • the RNC carries the UE's degraded capability class in the process of sending the notification message to the Node B, and the SRNC may send the notification message carrying the UE's degraded capability class to the Node B.
  • the RNC may also be the SRNC.
  • the notification message carrying the UE's degraded capability category is sent to the DRNC, and the DRNC sends the received notification message to the Node B. In this way, the transmission of the notification message between the RNC and the Node B is made more convenient.
  • only one bit may be used to indicate the notification mode.
  • the specific manner may be multiple, for example, whether the first indication cell is carried in the indication information (preferably, the length is 1 bit).
  • the indication information may include at least one of the following: high speed downlink shared channel frequency division duplex information, high speed downlink shared channel to be modified Information, high to be modified asynchronously Fast downlink shared channel information. ⁇ Use the existing information to carry the notification method, which is relatively simple to implement and the development cost is relatively low.
  • the notification message may include at least one of the following: a radio link setup request, a radio link reconfiguration preparation, and a radio link reconfiguration request.
  • 2 is a structural block diagram of a Node B according to Embodiment 1 of the present invention.
  • the Node B may include: a receiving module 22, configured to receive a notification message from the RNC, where the notification message includes: after the UE is downgraded The capability module; the allocating module 24 is coupled to the receiving module 22, and configured to allocate the HARQ process to the UE by using the total number of soft channels corresponding to the degraded capability class.
  • This structure improves the accuracy of the distribution and thus the performance of the system.
  • FIG. 3 is a block diagram showing the detailed structure of a node B according to the first embodiment of the present invention.
  • the node B further includes: a notification module 32 coupled to the distribution module 24, configured to notify the node B of the HARQ at the RNC. If the mode of the process is limited to the explicit mode, the UE is notified of the buffer size of the allocated HARQ process and the number of HARQ processes. By the processing of the notification module 32, the decoding error caused by the inconsistent Process Memory Size of both the UE and the Node B is prevented.
  • 4 is a structural block diagram of an RNC according to Embodiment 1 of the present invention. As shown in FIG.
  • the RNC includes: a configuration module 42 configured to configure a capability category after degrading a UE in a notification message; and a sending module 44 coupled to The configuration module 42 is configured to send the notification message to the node B.
  • the Node B can learn the current UE's degraded capability category, thereby facilitating the Node B to perform subsequent processing.
  • 5 is a block diagram of a detailed structure of an RNC according to the first embodiment of the present invention. As shown in FIG.
  • the RNC may further include: a determining module 52 coupled to the configuration module 42 and configured to determine whether the reason for the degradation of the UE is a configured MAC- Ehs or dual-carrier capability; the configuration module 42 is further configured to, when the determination result of the determination module 52 is YES, configure the notification message to limit the manner in which the Node B notifies the HARQ process to the explicit mode. If the determination result of the determination module 52 is negative, the notification message is configured to instruct the instruction to limit the manner in which the Node B notifies the HARQ process to the explicit mode.
  • Embodiment 2 This embodiment describes the detailed processing procedure of the HARQ process allocation method, so as to achieve the purpose of using a consistent Process Memory Size for both the transmitting and receiving parties.
  • the method includes the following operations in the RNC, the Node B, and the UE side, and the following steps are specifically included: Step 1: The RNC determines the degraded capability category, and configures the configuration to the Node B (if the Iur interface exists, the DRB is configured to the Node B), and Signaling (which can be any of the following messages: radio link setup request, radio link reconfiguration preparation, radio link reconfiguration request) indicates whether to restrict the use of explicit mode (in a broad sense, it can also be called For the explicit allocation method, in a broad sense, the allocation process may include a port processing memory size, and the specific indication method may be: (1) "high-speed downlink shared channel frequency in the existing cell" Split duplex information (HS-DSCH FDD
  • Step 2 The Node B receives the signaling from the RNC, parses the degraded UE capability class, and limits whether to use the explicit mode indication. And allocating a Process Memory Size according to the number of soft channel bits corresponding to the UE capability category indicated in the signaling.
  • Step 3 Node B notifies the RNC of the number of assigned HARQ processes and Process Memory Size.
  • Step 4 The RNC receives the signaling from the Node B (if there is an Iur interface, it receives the signaling from the DRNC) hail and then according to the notification in the signaling, the number of 4 BAR HARQ processes and the Process Memory Size allocation are transmitted to the UE.
  • Step 5 The UE receives the RNC from the RNC. Signaling, and according to the notification in the RNC signaling, allocate the number of HARQ processes and the Process Memory Size.
  • the third embodiment to the sixth embodiment described below combine the technical solutions of the foregoing multiple preferred embodiments. For example, the detailed processing procedure of the allocation method of the HARQ process is described by using a specific example.
  • the terminal capability category 10 is taken as an example: the total number of soft channels corresponding to the capability category 10 is 172800 bits.
  • Step 4 610: The RNC determines to downgrade the capability category 10 to the capability category 8, in the wireless
  • the UE category 8 is configured to the Node B in the Path Setup Request or Radio Link Reconfiguration Preparation or Radio Link Reconfiguration Request message, and the process is to allocate the Process Memory Size using the explicit allocation method.
  • Step 620 The Node B receives the RNC from the RNC.
  • Embodiment 4 This embodiment describes the detailed processing procedure of the allocation method of the HARQ process by a specific example.
  • the terminal capability category 20 is taken as an example:
  • the total number of soft channels corresponding to capability category 20 is 518400 bits.
  • FIG. 7 is a detailed flowchart of a method for allocating a HARQ process according to Embodiment 4 of the present invention. As shown in FIG. 7, the method includes the following steps: Step 4: 710:
  • the RNC determines to downgrade the capability category 20 to the capability category 14.
  • Step 750: The UE receives the signaling from the RNC, and allocates 6 HARQ processes according to the notification in the RNC signaling, and each process Process Memory Size 40000 bits.
  • Embodiment 5 This embodiment describes a detailed processing procedure of the allocation method of the HARQ process by a specific example.
  • the terminal capability category 10 is taken as an example: The total number of soft channels corresponding to capability category 10 is 172800 bits.
  • FIG. 8 is a detailed flowchart of a method for allocating a HARQ process according to Embodiment 5 of the present invention.
  • the method includes the following steps: Step 4: 810: The SRNC determines to downgrade the capability category 10 to the capability category 8.
  • the UE class 8 is configured to the DRNC in the radio link setup request or the radio link reconfiguration preparation or the radio link reconfiguration request message, and 4 is intended to allocate the Process Memory Size using the explicit allocation method.
  • Step 870: The UE receives the signaling from the RNC, and allocates 7 HARQ processes according to the notification in the RNC signaling, and each process Process Memory Size 19200 bits.
  • Embodiment 6 This embodiment describes a detailed processing procedure of the allocation method of the HARQ process by a specific example.
  • the terminal capability category 20 is taken as an example: The total number of soft channels corresponding to capability category 20 is 518400 bits.
  • FIG. 9 is a detailed flowchart of a method for allocating a HARQ process according to Embodiment 6 of the present invention.
  • Step 910 The SRNC determines to downgrade the capability category 20 to the capability category 14.
  • the UE class 14 is configured to the DRNC in a radio link setup request or radio link reconfiguration preparation or radio link reconfiguration request message, and indicates that the Process Memory Size is allocated using an explicit allocation method.
  • Step 940 The Node B notifies the DRNC of the number of allocated HARQ processes and the Process Memory Size.
  • Step 970: The UE receives the signaling from the RNC, and allocates 6 HARQ processes according to the notification in the RNC signaling, and each process Process Memory Size 40000 bits. From the above description, it can be seen that the solution provided by the embodiment of the present invention improves the accuracy of the allocation, thereby improving the performance of the system. The solution provided by the embodiment of the present invention enables the Node B to perform HARQ process allocation according to the capability class after the current UE is degraded, thereby improving the accuracy of the allocation, thereby improving the performance of the system.
  • the solution can be realized only by a small amount of software update on the processing mode of the RNC and the node B. It is easy to implement without changing the hardware architecture of the system, and has strong industrial applicability.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

本发明公开了一种混合自动重传请求进程的分配方法及装置,该方法包括:RNC将UE降级后的能力类别携带在通知消息中发送给节点B;节点B采用降级后的能力类别所对应的软信道总比特数为UE分配HARQ进程。本发明提高了分配的准确性,从而提高了系统的性能。

Description

混合自动重传请求进程的分配方法^置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种混合自动重传请求 ( Hybrid Automatic Repeat Request, 简称为 HARQ )进程的分配方法、 节点 B ( NodeB ) 及无线网络控制器 ( Radio Network Controller, 简称为 RNC )。 背景技术 在系统技术优化中, 为了提高用户体-险质量和系统吞吐量, 高速下行分组 接入 ( High Speed Downlink Packet Access, 简称为 HSDPA )技术在不断的演 进, 目前下行方向已引入比 16 次积分调幅调制 ( 16 Quadrature Amplitude Modulation, 简称为 16QAM ) 更高阶的调制方式 64QAM、 多输入多输出 ( Multiple Input Multiple Output, 简称为 MIMO ) 的发射和接收分集技术、 多 载频 HSDPA 技术。 随着具有更高吞吐量的技术的演进, 用户设备 (User Equipment, 简称为 UE ) 的能力也进一步提高。
HARQ是 HSDPA的关键技术之一, 它能够使得信道编码后的输出比特数 与映射进 HS-PDSCH物理信道集合的总比特数相匹配, HARQ功能由冗余版 本 (Redundancy Version, 简称为 RV)参数控制, HARQ输出比特的精确设置依 赖于输入比特数、 输出比特数和 RV参数。 HARQ功能包括 2次速率匹配和一 个虚拟增量冗余(Incremental Redundancy, 简称为 IR )緩存, 也称为软信道容 量, 决定了 HARQ的第一次速率匹配, 软信道容量会影响网络侧使用的冗余版 本, 并在一定程度上影响终端的传输能力, 该容量越大所对应有效的传输信息 量越大, 终端的速率会越高。 UE可以同时有多个 HARQ进程, 多个 HARQ进 程的虚拟 IR緩存的总和不能超过该 UE能力类别的软信道总比特数。为保证成 功解码, 需要发送侧和接收侧使用相同的 HARQ进程个数及其虚拟 IR緩存, 并使用相同的软信道总比特数。 目前协议中, HARQ 进程个数及每个 HARQ 进程的緩存大小 ( Process
Memory Size ) 由服务节点 B分配, 并由服务节点 B通知到服务无线网络控制 器 ( Serving Radio Network Control, 简称为 SRNC )„ 如果存在 Iur接口, 则由 服务节点 B通知到漂移无线网络控制器( Drifting Radio Network Control, 简称 为 DRNC;), 再由 DRNC通知到 SRNC, 最后由 SRNC通知到终端。 节点 B通^ Process Memory Size的过程主要通过两种方式实现:
( 1 ) 隐式: 此时节点 B只要返回分配的 HARQ进程个数即可, 节点 B和 UE基于 UE能力等级所对应的软信道的总比特数除以 HARQ进程个数, 就得 到每个 HARQ进程所使用的緩存尺寸 ( Process Memory Size )„ ( 2 )显式:此时节点 B要返回其所分配的 HARQ进程个数以及每个 HARQ 进程所需要的緩存尺寸 (Process Memory Size )。 并且显式分配时, Iub 口和 Uu (;空口)的消息流程中为了减小信息传递的数据流量, 3GPP 定义只能传递如 下枚举值: Integer(800 .. 16000 by step of 800, 17600 .. 32000 by step of 1600, 36000 .. 80000 by step of 4000, 88000 .. 160000 by step of 8000, 176000 .. 304000 by step of 16000)„
25.306协议针对每个 UE能力类别规定了相应的软信道总比特数。 25.331 协议通过 CR3813 明确规定 UE 在是否配置媒体接入控制-增强高速 (Media Access Control-enhanced high speed, 简称为 MAC-ehs )或双载波能力时 4目应使 用的能力类别和对应的软信道总比特数。 这样网络侧就可以在配置 UE能力类 别和分配 Process Memory Size时和 UE进行一致的处理。 发明人发现, 由于协议并没有规定 RNC 出于除了 CR3813 中以外的其它 原因 (比如, 运营商由于市场需要限定最高比特速率为 7.2Mbps; 或者网络侧 从最经济使用緩存的角度, 对于类别 19, 当不使用 MIMO只使用 64QAM时 或者当不使用 64QAM只使用 MIMO时, 决定分别降级成类别 13或 15 , 以使 用更少的软信道总比特数等等) 而需要主动对 UE能力类别降级时, 节点 B该 使用多大的 UE能力类别, 因此, 在这种情况下, 节点 B无法确定应该使用多 大的软信道总比特数为 UE分配 HARQ进程, 此时, 节点 B所分配的 Process Memory Size是不准确的, 导致系统性能下降。 发明内容 本发明的主要目的在于提供一种 HARQ进程的分配方法、节点 B及 RNC , 以至少解决上述的问题。 本发明的一个方面提供了一种混合自动重传请求进程的分配方法, 包括: RNC将 UE降级后的能力类别携带在通知消息中发送给节点 B;节点 B釆用降 级后的能力类别所对应的软信道总比特数为 UE分配 HARQ进程。 优选地, 通知消息中还携带有用于指示是否将节点 B通知 HARQ进程的 方式限制为显式方式的指示信息。 优选地, 在指示信息指示限制为显式方式的情况下, 在节点 B釆用降级后 的能力类别所对应的软信道总比特数为 UE分配 HARQ进程之后,该方法还包 括: 节点 B将分配的 HARQ进程的緩存大小和 HARQ进程的个数通知 UE。 优选地, 在 RNC发送携带有指示将节点 B通知 HARQ进程的方式限制为 显式方式的指示信息的通知消息之前, 该方法还包括: RNC判断 UE的降级原 因不是预定原因, 其中, 预定原因包括: 配置媒体接入控制-增强高速 MAC-ehs 或配置双载波能力。 优选地, RNC判断 UE的降级原因是预定原因, 则 RNC发送携带有指示 不将节点 B通知 HARQ进程的方式限制为显式方式的指示信息的通知消息, 在节点 B釆用降级后的能力类别所对应的软信道总比特数为 UE分配 HARQ进 程之后, 该方法还包括: 节点 B确定釆用显示方式还是隐式方式将 HARQ进 程通知 UE, 若釆用显示方式, 节点 B将 HARQ进程的緩存大小和 HARQ进 程的个数通知 UE; 若釆用隐式方式, 节点 B将 HARQ进程的个数通知 UE。 优选地, RNC将 UE降级后的能力类别携带在通知消息中发送给节点 B包 括: SRNC将携带 UE降级后的能力类别的通知消息发送至节点 B;或者, SRNC 将携带 UE降级后的能力类别的通知消息发送至 DRNC , DRNC将接收到的通 知消息发送至节点 B。 优选地, 指示信息通过以下方式指示是否将节点 B通知 HARQ进程的方 式限制为显式方式: 在指示信息中通过是否携带第一指示信元来指示是否将节 点 B通知 HARQ进程的方式限制为显式方式; 在指示信息中通过携带的第二 指示信元的取值来指示是否将节点 B通知 HARQ进程的方式限制为显式方式; 其中, 指示信息包括以下至少之一: 高速下行共享信道频分双工信息、 待修改 的高速下行共享信道信息、 待非同步修改的高速下行共享信道信息。 优选地, 通知消息包括以下至少之一: 无线链路建立请求、 无线链路重配 置准备、 无线链路重配置请求。 本发明的另一个方面提供了一种节点 B, 包括: 接收模块, 设置为接收来 自 RNC的通知消息, 其中, 通知消息包括: UE降级后的能力类别; 分配模块, 设置为釆用降级后的能力类别所对应的软信道总比特数为 UE分配 HARQ进 程。 优选地, 该节点 B还包括: 通知模块, 设置为在 RNC指示将节点 B通知 HARQ进程的方式限制为显式方式的情况下, 将分配的 HARQ进程的緩存大 小和 HARQ进程的个数通知 UE。 本发明的再一个方面一种无线网络控制器, 包括: 配置模块, 设置为将 UE 降级后的能力类别配置在通知消息中; 发送模块, 设置为发送通知消息到 节点 B。 优选地, 该无线网络控制器还包括: 判断模块, 设置为判断 UE的降级原 因是否是配置 MAC-ehs 或具备双载波能力; 配置模块还设置为在判断模块的 判断结果为是的情况下, 在通知消息中配置用于指示不将节点 B 通知 HARQ 进程的方式限制为显式方式的指示信息; 在判断模块的判断结果为否的情况 下, 在通知消息中配置用于指示将节点 B通知 HARQ进程的方式限制为显式 方式的指示信息。 通过本发明, 釆用 RNC将 UE降级后的能力类别通知给节点 B, 节点 B 才艮据该能力类别所对应的软信道总比特数分配 HARQ 进程, 解决了 Process Memory Size分配不准确导致系统性能下降的问题, 使得节点 B根据当前 UE 降级后的能力类别来进行 HARQ进程分配,提高了分配的准确性, 从而提高了 系统的性能。 附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的不 当限定。 在附图中: 图 1是才艮据本发明实施例一的 HARQ进程的分配方法的流程图; 图 2是 居本发明实施例一的节点 B的结构框图; 图 3是 居本发明实施例一的节点 B的详细结构框图; 图 4是才艮据本发明实施例一的 RNC的结构框图; 图 5是才艮据本发明实施例一的 RNC的详细结构框图; 图 6是才艮据本发明实施例三的 HARQ进程的分配方法的详细流程图; 图 7是才艮据本发明实施例四的 HARQ进程的分配方法的详细流程图; 图 8是才艮据本发明实施例五的 HARQ进程的分配方法的详细流程图; 图 9是才艮据本发明实施例六的 HARQ进程的分配方法的详细流程图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在不 冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。 实施例一 图 1 是才艮据本发明实施例一的 HARQ进程的分配方法的流程图, 如图 1 所示, 该实施例提供的方法包括: 步骤 S 102 , RNC将 UE降级后的能力类别携带在通知消息中发送给节点 B; 步骤 S 104, 节点 B 釆用该降级后的能力类别所对应的软信道总比特数为 该 UE分配 HARQ进程。 该方法中, 由于 RNC能够知道当前 UE降级后的能力类别, 因此, 节点 B 从 RNC接收到的能力类别是准确且实时的, 根据该能力类别所进行的 HARQ 进程的分配也是准确的, 从而提高了分配的准确度, 进而提高了系统的性能。 为了提高 RNC对节点 B通知 UE的过程的可控度, 以及便于节点 B对通 知方式进行决策, 在上述通知消息中, 还可以携带有用于指示是否将节点 B通 知上述 HARQ进程的方式限制为显式方式的指示信息。 另外, 在 UE根据节点 B分配的 HARQ进程进行自身的 HARQ进程分配 时, 由于 UE可能无法知道自身现在被降级为什么能力类别, 可能 UE也无法 准确地实现分配, 因 jt匕, 为了防止 UE和节点 B双方的 Process Memory Size 不一致而导致解码出错, 作为一种优选的方案, 在指示信息中, RNC可以指示 将节点 B 通知上述 HARQ 进程的方式限制为显式方式; 则节点 B 将分配的 HARQ进程通知给 UE时, 只能釆用显示方式进行通知, 具体地, 节点 Β将分 配的 HARQ进程的緩存大小和 HARQ进程的个数通知 UE。 优选地, 为了减少通知消息的开销, RNC可以通过以下的判断来决定是否 携带指示信息, 另外, 为了减少节点 B 的处理过程及用于通知分配的 HARQ 进程的通知消息的开销, 也可以通过以下的判断来决定是否将指示信息设置为 显式方式:
RNC 判断 UE 的降级原因是否是预定原因 (其中, 预定原因包括: 配置 MAC-ehs或具备双载波能力), 若是, 则确定在通知消息中不携带指示信息, 以便减少通知消息的开销, 或者, 发送携带有指示不将节点 B通知上述 HARQ 进程的方式限制为显式方式的指示信息的通知消息, 以便减少节点 B的处理过 程及用于通知分配的 HARQ进程的通知消息的开销; 否则, 发送携带有指示将 所述节点 B通知所述 HARQ进程的方式限制为显式方式的指示信息的通知消 息, 以便 UE在不知道自身当前降级的能力类别的情况下, 正确地进行 HARQ 进程的分配, 防止解码错误。 在指示信息指示不限制为显式方式时, 为了提高处理的灵活性, 节点 B也 可以自由决定釆用何种方式通知分配的 HARQ进程, 也就是说, 节点 B可以 自身进行判断:节点 B确定釆用显示方式还是隐式方式将 HARQ进程通知 UE , 若釆用显示方式, 节点 B将 HARQ进程的緩存大小和 HARQ进程的个数通知 UE; 若釆用隐式方式, 节点 B将 HARQ进程的个数通知 UE。 优选地, RNC将 UE降级后的能力类别携带在通知消息中发送给节点 B的 过程中,可以是 SRNC将携带 UE降级后的能力类别的通知消息发送至节点 B; 或者,也可以是 SRNC将携带 UE降级后的能力类别的通知消息发送至 DRNC , DRNC将接收到的通知消息发送至节点 B。通过这种方式,使得 RNC和节点 B 之间的通知消息的传输更加方便。 为了减少通知消息的开销, 可以只釆用 1个比特来指示通知方式, 具体方 式可以有多种, 例如, 在指示信息中通过是否携带第一指示信元 (优选地, 长 度为 1 比特即可) 来指示是否将节点 B通知上述 HARQ进程的方式限制为显 式方式; 或者, 在指示信息中通过携带的第二指示信元 (若需要指示的方式为 两种, 则长度为 1比特即可) 的取值来指示是否将节点 B通知上述 HARQ进 程的方式限制为显式方式; 其中, 指示信息可以包括以下至少之一: 高速下行 共享信道频分双工信息、 待修改的高速下行共享信道信息、 待非同步修改的高 速下行共享信道信息。 釆用现有的信息中携带通知方式, 实现起来比较简单, 且开发成本较氐。 考虑到简化实现及降低开发成本, 通知消息可以包括以下至少之一: 无线 链路建立请求、 无线链路重配置准备、 无线链路重配置请求。 图 2是 居本发明实施例一的节点 B的结构框图, 如图 2所示, 该节点 B 可以包括: 接收模块 22 , 设置为接收来自 RNC的通知消息, 其中, 通知消息 包括: UE降级后的能力类别; 分配模块 24 , 耦合至接收模块 22 , 设置为釆用 该降级后的能力类别所对应的软信道总比特数为该 UE分配 HARQ进程。该结 构提高了分配的准确度, 进而提高了系统的性能。 图 3是 居本发明实施例一的节点 B的详细结构框图, 如图 3所示, 该节 点 B还包括: 通知模块 32 , 耦合至分配模块 24 , 设置为在 RNC指示将节点 B 通知上述 HARQ进程的方式限制为显式方式的情况下, 将分配的 HARQ进程 的緩存大小和 HARQ进程的个数通知 UE。 通过通知模块 32的处理, 防止了 UE和节点 B双方的 Process Memory Size不一致而导致的解码出错。 图 4是根据本发明实施例一的 RNC的结构框图, 如图 4所示, 该 RNC包 括: 配置模块 42 , 设置为将 UE降级后的能力类别配置在通知消息中; 发送模 块 44 , 耦合至配置模块 42 , 设置为发送该通知消息到节点 B。 通过该结构, 使得节点 B能够获知当前的 UE降级后的能力类别,从而便于节点 B进行后续 的处理。 图 5是根据本发明实施例一的 RNC的详细结构框图,如图 5所示,该 RNC 还可以包括: 判断模块 52 , 耦合至配置模块 42 , 设置为判断 UE的降级原因是 否是配置 MAC-ehs或具备双载波能力; 配置模块 42还设置为在判断模块 52 的判断结果为是的情况下, 在通知消息中配置用于指示不将节点 B 通知上述 HARQ进程的方式限制为显式方式的指示信息; 在判断模块 52的判断结果为 否的情况下, 在通知消息中配置用于指示将节点 B通知 HARQ进程的方式限 制为显式方式的指示信息。 通过判断模块 52的处理, 提高了 RNC对节点 B通 知 UE的过程的可控度, 并且便于节点 B对通知方式进行决策。 实施例二 该实施例描述了 HARQ进程的分配方法的详细处理过程,以达到收发双方 使用一致的 Process Memory Size的目的。 该方法包括 RNC、 节点 B和 UE侧 的处理, 具体包括以下步骤: 步骤 1 : RNC确定降级后的能力类别, 配置给节点 B (如果存在 Iur接口, 则经由 DRNC配置给节点 B ) , 并在信令 (可以为下述消息的任何一种: 无线 链路建立请求、 无线链路重配置准备、 无线链路重配置请求) 中指示是否限制 使用显式方式 (从广义上来讲, 也可以称为显式分配方式, 因为广义上来说, 分配的过程可以包括通 口 )通 口 Process Memory Size , 具体的指示方法例 ^口可 以是: ( 1 ) 在现有信元的 "高速下行共享信道频分双工信息 (HS-DSCH FDD
Information ) ,,、 "待 4爹改的高速下行共享信道信息 (HS-DSCH Information To Modify ) "或"待非同步修改的高速下行共享信道信息( HS-DSCH Information To Modify Unsynchronised ) "中增加是否使用显式方式的指示, 为可选信元。 如果 该信元存在, 表示限定节点 B只能使用显式方式通知, 不存在表示无此限定。 ( 2 ) 在现有信元的 "高速下行共享信道频分双工信息 (HS-DSCH FDD
Information ) ,,、 "待 4爹改的高速下行共享信道信息 (HS-DSCH Information To Modify ) "或"待非同步修改的高速下行共享信道信息( HS-DSCH Information To Modify Unsynchronised ) "中增加是否使用显式方式的指示, 为必选信元。 取值
"真"表示限定节点 B只能使用显式方式通知, 取值"假"表示无此限定。 具体地, 对于 CR3813的范围之外的 UE能力类别转换, 可以限定节点 B 只能釆用显式方式通^ Process Memory Size。 步骤 2: 节点 B接收来自 RNC的信令, 解析降级后的 UE能力类别, 以及 是否限制使用显式方式的指示。 并根据信令中指示的 UE能力类别对应的软信 道比特数分配 Process Memory Size。 更进一步的, 如果指示为限制使用显式方 式则节点 B只能使用显式方式通知分配的 HARQ进程, 进入步骤 3 , 否则由节 点 B 自行决定使用隐式还是显式方式通 口 Process Memory Size。 步骤 3: 节点 B将分配的 HARQ进程个数和 Process Memory Size通知到 RNC。 步骤 4: RNC接收来自节点 B的信令(如果存在 Iur接口,则接收来自 DRNC 的信令 )„ 并才艮据信令中的通知, 4巴 HARQ进程个数和 Process Memory Size分 配传递给 UE。 更进一步的, 如果 RNC限定节点 B或 DRNC只能釆用显式方式, 则 RNC 将节点 B或 DRNC返回的 HARQ进程个数和 Process Memory Size透传给 UE。 步骤 5 : UE接收来自 RNC的信令,并按照 RNC信令中的通知,分配 HARQ 进程个数和 Process Memory Size。 以下描述的实施例三至实施例六, 结合了上述多个优选实施例的技术方 案。 实施例三 该实施例通过具体的实例, 描述了 HARQ 进程的分配方法的详细处理过 程。 这里以终端能力类别 10 为例: 能力类别 10 对应的软信道总比特数为 172800bit。 图 6是才艮据本发明实施例三的 HARQ进程的分配方法的详细流程 图, 如图 6所示, 该方法包括以下步 4聚: 步 4聚 610: RNC确定将能力类别 10降级为能力类别 8, 在无线链路建立请 求或无线链路重配置准备或无线链路重配置请求消息中将 UE类别 8配置给节 点 B, 且旨示使用显式分配方式分配 Process Memory Size。 步骤 620: 节点 B接收来自 RNC的信令, 并根据信令中指示的 UE能力类 另' J 8对应的软信道比特数 134400比特分配 Process Memory Size, 且使用显式 分配方法, 分配 7 个 HARQ 进程, 每个进程的 Process Memory Size= 134400/7= 19200比特。 步骤 630: 节点 B将分配的 HARQ进程个数和 Process Memory Size通知 到 RNC。 步骤 640: RNC接收来自节点 B的响应消息。 并根据信令中的通知, 把 7 个 HARQ进程和每个进程 Process Memory Size= 19200比特传递给 UE。 步骤 650: UE接收来自 RNC的信令, 并按照 RNC信令中的通知, 分配 7 个 HARQ进程且每个进程 Process Memory Size= 19200比特。 实施例四 该实施例通过具体的实例, 描述了 HARQ 进程的分配方法的详细处理过 程。 这里以终端能力类别 20 为例: 能力类别 20 对应的软信道总比特数为 518400bit。 图 7是才艮据本发明实施例四的 HARQ进程的分配方法的详细流程 图, 如图 7所示, 该方法包括以下步骤: 步 4聚 710: RNC确定将能力类别 20降级为能力类别 14, 在无线链路建立 请求或无线链路重配置准备或无线链路重配置请求消息中将 UE类别 14配置给 节点 B, 且指示使用显式分配方式分配 Process Memory Size。 步骤 720: 节点 B接收来自 RNC的信令, 并根据信令中指示的 UE能力类 另' J 14对应的软信道比特数 259200比特分配 Process Memory Size, 且使用显式 分配方法, 分配 6 个 HARQ 进程, 每个进程的 Process Memory Size=259200/6=43200比特并下调到协议规定的最接近的 Process Memory Size 离散值 40000比特。 步骤 730: 节点 B将分配的 HARQ进程个数和 Process Memory Size通知 到 RNC。 步骤 740: RNC接收来自节点 B的响应消息。 并根据信令中的通知, 把 6 个 HARQ进程和每个进程 Process Memory Size=40000比特传递给 UE。 步骤 750: UE接收来自 RNC的信令, 并按照 RNC信令中的通知, 分配 6 个 HARQ进程且每个进程 Process Memory Size=40000比特。 实施例五 该实施例通过具体的实例, 描述了 HARQ 进程的分配方法的详细处理过 程。 这里以终端能力类别 10 为例: 能力类别 10 对应的软信道总比特数为 172800bit。 图 8是才艮据本发明实施例五的 HARQ进程的分配方法的详细流程 图, 如图 8所示, 该方法包括以下步骤: 步 4聚 810: SRNC确定将能力类别 10降级为能力类别 8, 在无线链路建立 请求或无线链路重配置准备或无线链路重配置请求消息中将 UE类别 8配置给 DRNC, 且4旨示使用显式分配方式分配 Process Memory Size。 步骤 820: DRNC接收来自 SRNC的信令, 并将信令中指示的 UE能力类 别 8以及显式分配方式指示透传给节点 B。 步骤 830: 节点 B接收来自 DRNC的信令, 并根据信令中指示的 UE能力 类别 8对应的软信道比特数 134400比特分配 Process Memory Size, 且使用显 式分配方法, 分配 7 个 HARQ 进程, 每个进程的 Process Memory Size= 134400/7= 19200比特。 步 4聚 840: 节点 B将分配的 HARQ进程个数和 Process Memory Size通知 到 DRNC。 步骤 850: DRNC接收来自节点 B的响应消息。 并根据信令中的通知, 4巴 HARQ个数 =7, 每个进程 Process Memory Size= 19200比特透传给 SRNC。 步骤 860: SRNC接收来自 DRNC的响应消息。 并将 HARQ个数 =7, 每个 进程 Process Memory Size= 19200比特透传给 UE。 步骤 870: UE接收来自 RNC的信令, 并按照 RNC信令中的通知, 分配 7 个 HARQ进程且每个进程 Process Memory Size= 19200比特。 实施例六 该实施例通过具体的实例, 描述了 HARQ 进程的分配方法的详细处理过 程。 这里以终端能力类别 20 为例: 能力类别 20 对应的软信道总比特数为 518400bit。 图 9是才艮据本发明实施例六的 HARQ进程的分配方法的详细流程 图, 如图 9所示, 该方法包括以下步 4聚: 步骤 910: SRNC确定将能力类别 20降级为能力类别 14, 在无线链路建立 请求或无线链路重配置准备或无线链路重配置请求消息中将 UE类别 14配置给 DRNC, 且指示使用显式分配方式分配 Process Memory Size。 步骤 920: DRNC接收来自 SRNC的信令, 并将信令中指示的 UE能力类 别 14以及显式分配方式指示透传给节点 B。 步骤 930: 节点 B接收来自 DRNC的信令, 并根据信令中指示的 UE能力 类另' J 14对应的软信道比特数 259200比特分配 Process Memory Size, 且使用显 式分配方法, 分配 6 个 HARQ 进程, 每个进程的 Process Memory Size=259200/6=43200比特并下调到协议规定的最接近的 Process Memory Size 离散值 40000比特。 步骤 940: 节点 B将分配的 HARQ进程个数和 Process Memory Size通知 到 DRNC。 步骤 950: DRNC接收来自节点 B的响应消息。 并根据信令中的通知, 4巴 HARQ个数 =6, 每个进程 Process Memory Size=40000比特透传给 SRNC。 步骤 960: SRNC接收来自 DRNC的响应消息。 并将 HARQ个数 =6, 每个 进程 Process Memory Size=40000比特透传给 UE。 步骤 970: UE接收来自 RNC的信令, 并按照 RNC信令中的通知, 分配 6 个 HARQ进程且每个进程 Process Memory Size=40000比特。 从以上的描述中, 可以看出, 本发明实施例提供的方案提高了分配的准确 性, 从而提高了系统的性能。 工业实用 生 通过本发明实施例提供的方案, 使得节点 B根据当前 UE降级后的能力类 别来进行 HARQ进程分配, 提高了分配的准确性, 从而提高了系统的性能。 另 夕卜, 本方案仅通过对 RNC和节点 B的处理方式进行软件上的少量更新即可实 现, 无需对系统的硬件构架进行改变, 容易实现, 具备较强的工业实用性。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可以 用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多 个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程序代码 来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 并且在某些 情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者将它们分别 制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作成单个集成电 路模块来实现。 这样, 本发明不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本领 域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"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 书
1. 一种混合自动重传请求 HARQ进程的分配方法, 包括:
无线网络控制器 RNC将用户设备 UE降级后的能力类别携带在通知 消息中发送给节点 B;
所述节点 B釆用所述降级后的能力类别所对应的软信道总比特数为 所述 UE分配 HARQ进程。
2. 根据权利要求 1所述的方法, 其中, 所述通知消息中还携带有用于指示 是否将所述节点 B通知所述 HARQ进程的方式限制为显式方式的指示信 息。
3. 根据权利要求 2所述的方法, 其中, 在所述指示信息指示限制为显式方 式的情况下, 在所述节点 B釆用所述降级后的能力类别所对应的软信道 总比特数为所述 UE分配 HARQ进程之后, 还包括:
所述节点 B将分配的所述 HARQ进程的緩存大小和所述 HARQ进 程的个数通知所述 UE。
4. 根据权利要求 3所述的方法, 其中, 在所述 RNC发送携带有指示将所述 节点 B通知所述 HARQ进程的方式限制为显式方式的指示信息的通知消 息之前, 还包括:
所述 RNC判断所述 UE的降级原因不是预定原因, 其中, 所述预定 原因包括: 配置媒体接入控制 -增强高速 MAC-ehs或配置双载波能力。
5. 根据权利要求 4所述的方法, 其中, 所述 RNC判断所述 UE的降级原因 是所述预定原因, 则所述 RNC发送携带有指示不将所述节点 B通知所 述 HARQ进程的方式限制为显式方式的指示信息的通知消息, 在所述节 点 B釆用所述降级后的能力类别所对应的软信道总比特数为所述 UE分 配 HARQ进程之后, 还包括:
所述节点 B确定釆用显示方式还是隐式方式将所述 HARQ进程通知 所述 UE, 若釆用所述显示方式, 所述节点 B将所述 HARQ进程的緩存 大小和所述 HARQ进程的个数通知所述 UE; 若釆用所述隐式方式, 所 述节点 B将所述 HARQ进程的个数通知所述 UE。
6. 根据权利要求 1所述的方法, 其中, RNC将 UE降级后的能力类别携带 在通知消息中发送给节点 B包括:
服务无线网络控制器 SRNC将携带所述 UE降级后的能力类别的所 述通知消息发送至所述节点 B; 或者,
所述 SRNC将携带所述 UE降级后的能力类别的通知消息发送至漂 移无线网络控制器 DRNC , 所述 DRNC将接收到的所述通知消息发送至 所述节点 B。
7. 根据权利要求 2所述的方法, 其中, 所述指示信息通过以下方式指示是 否将所述节点 B通知所述 HARQ进程的方式限制为显式方式:
在所述指示信息中通过是否携带第一指示信元来指示是否将所述节 点 B通知所述 HARQ进程的方式限制为显式方式;
在所述指示信息中通过携带的第二指示信元的取值来指示是否将所 述节点 B通知所述 HARQ进程的方式限制为显式方式;
其中, 所述指示信息包括以下至少之一: 高速下行共享信道频分双 工信息、 待修改的高速下行共享信道信息、 待非同步修改的高速下行共 享信道信息。
8. 根据权利要求 1至 7中任一项所述的方法, 其中, 所述通知消息包括以 下至少之一: 无线链路建立请求、 无线链路重配置准备、 无线链路重配 置请求。
9. 一种节点 B , 包括:
接收模块, 设置为接收来自 RNC的通知消息, 其中, 所述通知消息 包括: 用户设备 UE降级后的能力类别;
分配模块, 设置为釆用所述降级后的能力类别所对应的软信道总比 特数为所述 UE分配 HARQ进程。
10. 根据权利要求 9所述的节点 B, 其中, 还包括:
通知模块, 设置为在所述 RNC指示将所述节点 B通知所述 HARQ 进程的方式限制为显式方式的情况下,将分配的所述 HARQ进程的緩存 大小和所述 HARQ进程的个数通知所述 UE。
11. 一种无线网络控制器 RNC, 包括: 配置模块, 设置为将用户设备 UE降级后的能力类别配置在通知消 息中;
发送模块, 设置为发送所述通知消息到节点 B。 根据权利要求 11所述的 RNC, 其中, 还包括:
判断模块, 设置为判断所述 UE的降级原因是否是配置 MAC-ehs或 具备双载波能力; 所述配置模块还设置为在所述判断模块的判断结果为是的情况下, 在所述通知消息中配置用于指示不将所述节点 B通知所述 HARQ进程的 方式限制为显式方式的指示信息; 在所述判断模块的判断结果为否的情 况下,在所述通知消息中配置用于指示将所述节点 B通知所述 HARQ进 程的方式限制为显式方式的指示信息。
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