WO2011020329A1 - Processing method, base station and terminal for random access - Google Patents

Processing method, base station and terminal for random access Download PDF

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Publication number
WO2011020329A1
WO2011020329A1 PCT/CN2010/071743 CN2010071743W WO2011020329A1 WO 2011020329 A1 WO2011020329 A1 WO 2011020329A1 CN 2010071743 W CN2010071743 W CN 2010071743W WO 2011020329 A1 WO2011020329 A1 WO 2011020329A1
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Prior art keywords
preamble
random access
nodeb
value
fault tolerance
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PCT/CN2010/071743
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French (fr)
Chinese (zh)
Inventor
樊宇
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中兴通讯股份有限公司
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Publication of WO2011020329A1 publication Critical patent/WO2011020329A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a base station, and a terminal for processing random access in an LTE (Long Term Evolution) system.
  • LTE Long Term Evolution
  • the random access preamble is transmitted through the random access channel, and is used for base station (NodeB) estimation when the UE (User Equipment) has not obtained uplink time synchronization. Adjust the measurement process of the UE uplink transmission.
  • Step S101 A NodeB broadcasts a system broadcast message on a broadcast channel.
  • the system broadcast message includes configuration parameters of a current cell, specifically It may include bandwidth information, duplex mode, cell type, subframe configuration, random access format slot configuration, frequency domain resource RB (Resource Blocks), NCS (Number of cyclic shifts index) Configuration, root sequence logical index, cyclic shift selection, etc.;
  • Step S102 UE downlink synchronization, searching for a broadcast channel, obtaining a system broadcast message;
  • Step S103 The UE generates a parameter according to various parameters of the current cell included in the system broadcast message
  • the preamble sequence the preamble sequence is shown in Figure 2, including CP (Cyclic Prefix) and detection data sequence.
  • the relevant peak information of the preamble sequence is in the start position of the cyclic sequence shift region of the selected root sequence.
  • Step S104 The UE sends the generated preamble sequence to the NodeB through the antenna interface.
  • the random access response delay information T A value is the transmission time between the UE and the NodeB, and directly reflects the relative position of the UE and the NodeB receiving antenna.
  • Step S106 The NodeB feeds back the obtained random access response delay information value to the UE, and the UE determines the value. If not, the process proceeds to step S107. If it is 0, the process directly proceeds to step S108. Step S107: advance its own timing. Then, step S108 is performed; step S108: a subsequent processing flow is performed.
  • the UE performs random access in a place close to the receiving antenna of the NodeB, and there are different degrees of jitter and a slight advance in the timing of the UE, and the timing deviation of the jitter is greater than the signal transmission between the UE and the NodeB. In time, the preamble preamble sequence data interception error, the frequency domain autocorrelation peak information offset, the NodeB access detection error, the process cannot continue, and a new process needs to be re-initiated.
  • the technical problem to be solved by the present invention is to provide a random access processing method, a base station, and a terminal, which overcomes the misdetection of preamble data interception errors that may occur when the LTE system is short-range random access existing in the prior art. Problems and defects.
  • the present invention provides a random access processing method, including: a base station (NodeB) setting a terminal (UE) random access preamble fault tolerance parameter, adding it into
  • the NodeB system broadcasts a message, and then broadcasts the system broadcast message
  • the UE After receiving the system broadcast message, the UE generates a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message;
  • the UE calculates a product of the random access preamble fault tolerance parameter carried in the system broadcast message and the access detection precision value of the NodeB, and uses the product value to generate the last sample value of the preamble sequence as a tail sequence.
  • the tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is sent to the NodeB;
  • the NodeB receives the preamble sequence sent by the UE, periodically intercepts the data of the preamble sequence, detects the intercepted data, obtains a random access response delay information value, and sends the delay information value to the UE;
  • the UE After receiving the random access response delay information value, the UE compares the value with the random access preamble fault tolerance parameter, and performs timing adjustment according to the comparison result.
  • the step of performing timing adjustment by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter comprises: when the comparison result is T A > preamble offset, the UE advances its own timing access detection.
  • preamble _ offset parameter fault tolerant random access preamble, T a delay value random access response information preferably, In the step of the NodeB intercepting the data of the preamble sequence, the NodeB performs data interception according to a preset timing of the system according to the random access preamble fault tolerance parameter of 0.
  • the random access preamble fault tolerance parameter set by the NodeB is used.
  • the random access preamble fault tolerance parameter can satisfy all types of UEs.
  • the present invention provides a random access
  • the processing method includes: setting, by a base station (NodeB), a random access preamble fault tolerance parameter of the terminal (UE), adding the
  • the NodeB system broadcasts a message, and then broadcasts the system broadcast message
  • the UE After receiving the system broadcast message, the UE generates a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message, and sends the preamble sequence to the NodeB;
  • the NodeB adjusts the system based on the product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB to adjust the system timing to advance the preamble sent by the UE.
  • the data of the column, the data of the intercepted preamble sequence is detected to obtain a random access response delay information value, and the random access response delay information value is sent to the UE;
  • the UE After receiving the random access response delay information value, the UE compares the value with the random access preamble fault tolerance parameter, and performs timing adjustment according to the comparison result.
  • the step of performing timing adjustment by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter comprises: when the comparison result is T A > preamble offset, the UE advances its own timing access detection.
  • preamble _ offset parameter fault tolerant random access preamble, T a delay value random access response information preferably, The random access preamble fault tolerance parameter set by the NodeB is sufficient for all types
  • the present invention provides a base station (NodeB), including a broadcast module and a detection module, where the broadcast module is configured to: set a random access preamble fault tolerance parameter of the terminal (UE), and add it to the NodeB system broadcast.
  • the system broadcast message is then broadcasted; the detecting module is configured to: receive a preamble sequence sent by the UE, periodically intercept the data of the preamble sequence, and detect the intercepted data to obtain a random access response delay information value, And send it to the UE.
  • the detecting module is further configured to: calculate a product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB, and adjust the system timing according to the obtained product value to advance the product value of the sample point to intercept the UE.
  • the transmitted preamble sequence data is detected by the intercepted preamble sequence data.
  • the random access response delay information value is further configured to: set the random access preamble fault tolerance parameter to a random access preamble fault tolerance parameter that can satisfy all types of UEs.
  • the present invention provides a terminal (UE), including a preamble sequence generation module and a timing adjustment module, where the preamble sequence generation module is configured to: after receiving a system broadcast message sent by a base station (NodeB), according to the The parameter configuration of the current cell carried in the system broadcast message generates a preamble sequence, and sends the preamble sequence to the NodeB;
  • UE terminal
  • the preamble sequence generation module is configured to: after receiving a system broadcast message sent by a base station (NodeB), according to the The parameter configuration of the current cell carried in the system broadcast message generates a preamble sequence, and sends the preamble sequence to the NodeB;
  • the timing adjustment module is configured to: after receiving the random access response delay information value sent by the NodeB, compare the random access response delay information value with the random access preamble fault tolerance parameter, and perform timing adjustment according to the comparison result.
  • the preamble sequence generating module is further configured to: after generating a preamble sequence according to a parameter configuration of a current cell carried in the system broadcast message, calculate a random access preamble fault tolerance parameter and a NodeB access carried in the system broadcast message Detecting the product of the precision values, and using the obtained product value as the tail sequence of the last product value of the generated leader sequence, moving the tail sequence to the front of the cyclic prefix of the preamble sequence, and then processing the processed preamble sequence Sent to the NodeB.
  • the method for processing random access and the base station and the terminal provided by the present invention can flexibly configure the random access preamble fault tolerance parameter according to the situation of the terminal products of each vendor after the investigation to solve the preamble detection error caused by the terminal timing jitter of the short-range random access.
  • the problem that the process cannot be successful achieves the effect of preventing the detection error of the preamble sequence, saves the access waiting time, and improves the success rate of the random access process of the short-range terminal.
  • FIG. 1 is a flow chart of a random access process in the prior art
  • FIG. 2 is a schematic diagram of a preamble data format
  • FIG. 3 is a flow chart of a random access processing method according to a first embodiment of the present invention
  • FIG. 4B is a schematic diagram of a preamble sequence finally transmitted to a NodeB according to a first embodiment of the present invention
  • FIG. 5 is a flowchart of a method for random access according to a second embodiment of the present invention.
  • Step S301 NodeB is in When establishing a planned cell, according to the situation of the UE products of each vendor terminal after the investigation, the random access preamble fault tolerance parameter preamble _offset is reasonably set under the condition of ensuring that the UE short-distance access timing jitter access misdetection does not occur, and It is added to the NodeB system broadcast message;
  • Step S302 The NodeB broadcasts the system broadcast message on a broadcast channel.
  • the system broadcast message includes a random access preamble fault tolerance parameter preamble offset and various parameter configurations of the current cell, where: each parameter configuration of the current cell may include bandwidth information, and Work mode, cell type, subframe configuration, random access format slot configuration, frequency domain resource RB occupancy, NCS configuration, root sequence logical index, cyclic shift selection, etc.; random access preamble fault tolerance parameter prea ⁇ o fet can be According to the situation of the UE products of the vendors after the investigation, the random access preamble fault tolerance parameters of all types of UEs can be manually set in the case of ensuring that the UE short-range access timing jitter detection does not occur.
  • Step S303 The UE performs downlink synchronization, searches for a broadcast channel, and obtains the system broadcast message.
  • Step S304 The UE generates a preamble sequence according to the parameter configuration of the current cell included in the system broadcast message.
  • the UE When the UE generates the preamble sequence according to the parameter configuration of the current cell included in the broadcast message of the system, it is also necessary to select an appropriate cyclic shift Cv value according to the parameters, and then generate a corresponding preamble sequence to generate a preamble sequence. It can be done in the existing way, and will not be described here.
  • Step S305 The UE calculates a product of the random access preamble fault tolerance parameter carried in the system broadcast message and the access detection precision value of the NodeB, and uses the last product value of the generated preamble sequence as a sample point according to the obtained product value.
  • a tail sequence the tail sequence is moved to the front of the CP (Cyclic Prefix) of the preamble sequence, and then the processed preamble sequence is sent to the NodeB through the antenna interface;
  • FIG. 4A the figure shows the UE generated Schematic diagram of the preamble sequence;
  • Figure 4B shows a schematic diagram of the preamble sequence finally sent to the NodeB.
  • the access detection accuracy value of each system is planned when the system is established.
  • the access detection precision is 16, that is, in the LTE system, in this embodiment, after the UE generates the preamble sequence,
  • the last (16* preamble_offset) sample point of the preamble sequence may be used as a tail sequence, and the tail sequence is moved to the front of the CP of the preamble sequence, and then the preamble sequence after the data sequence is adjusted is sent to the NodeB.
  • Step S307 The UE obtains a random access response delay information value corresponding to itself, compares the value with a random access preamble fault tolerance parameter prea?_ofet corresponding to the UE, and performs timing adjustment according to the comparison result; the comparison result is The corresponding relationship of timing adjustment is as follows:
  • the UE When ⁇ ⁇ > preamble _off set , the UE needs to advance its timing into the detection precision value.
  • Step S308 The UE performs subsequent processes such as access competition resolution and resource allocation application according to the sequence after the adjustment.
  • the present invention also provides a system for implementing the foregoing method, including a base station (NodeB) and a terminal (UE), where: the NodeB is set to: set a random access preamble fault tolerance parameter of the UE, and add it to the NodeB system. Broadcasting the system broadcast message, and receiving the preamble ⁇
  • the UE is configured to: after receiving the system broadcast message, generate a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message, and calculate a random access preamble fault tolerance parameter carried in the system broadcast message and an access detection accuracy of the NodeB. a product of values, based on the obtained product value, the last sample of the generated preamble sequence as a tail sequence, the tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is Sending to the NodeB; and after receiving the random access response delay information value sent by the NodeB, comparing the value with the random access preamble fault tolerance parameter, and performing timing adjustment according to the comparison result. Further, the UE according to the random access response delay information value and the random access preamble fault tolerance parameter The timing adjustments for the results of the comparison include:
  • preamble _ offset parameter fault tolerant random access preamble
  • T A random access response delay information value.
  • the random access preamble fault tolerance parameter set by the NodeB is a random access preamble fault tolerance parameter that can satisfy all types of UEs.
  • Step S501 NodeB is establishing a plan
  • the random access preamble fault-predging parameter preamble _ offset may be reasonably set and ensured when the UE short-distance access timing jitter access misdetection does not occur.
  • Step S502 The NodeB broadcasts the system broadcast message on a broadcast channel.
  • the broadcast message of the system includes a random access preamble fault preamble offset and a parameter configuration of the current cell, where: the parameter configuration of the current cell may include bandwidth information, duplex mode, cell type, subframe configuration, and random access.
  • the parameter configuration of the current cell may include bandwidth information, duplex mode, cell type, subframe configuration, and random access.
  • random access preamble fault tolerance parameter prea ⁇ o fet may be based on the situation of each manufacturer terminal UE product after the investigation, It is guaranteed that the random access preamble fault tolerance parameter of all types of UEs can be set manually without the UE short-distance access timing jitter detection.
  • Step S503 The UE performs downlink synchronization, searches for a broadcast channel, and obtains a broadcast message of the system.
  • Step S504 The UE generates a preamble sequence according to each parameter configuration of the current cell included in the system broadcast message.
  • Step S501 to S504 are the same as the steps S301 to S304 in the first embodiment.
  • Step S505 The UE sends the preamble sequence generated in step S504 directly to the NodeB by the antenna interface.
  • Step S506 The NodeB calculates the random access preamble fault tolerance parameter.
  • the product of the access detection precision value of the NodeB according to the obtained product value adjustment system timing, the preamble sequence data sent by the UE is intercepted in advance of the product value, and the intercepted preamble sequence data is detected and randomly connected.
  • the access detection precision value of each system is planned when the system is established, and in the LTE system, the access detection precision value is 16, in the LTE system, in this embodiment, the NodeB adjusts the system timing, advances (16* prea ⁇ o fet ) samples to intercept the preamble sequence data for detection, and then measures the obtained random access response delay information.
  • Step S507 The UE obtains a random access response delay information value corresponding to itself, and the value is associated with the random access preamble fault tolerance parameter prea of the UE ? _o fet for comparison, based on the comparison results for timing adjustment;
  • the UE When ⁇ ⁇ > preamble _off set , the UE needs to advance its timing into the detection precision value.
  • Step S508 The UE performs subsequent processes such as access competition resolution and resource allocation application according to the sequence after the adjustment.
  • the present invention also provides a system for implementing the above method, including a base station (NodeB) and a terminal (UE), where:
  • the NodeB is configured to: set a random access preamble fault tolerance parameter of the UE, add it to the NodeB system broadcast message, and then broadcast the system broadcast message; and calculate the random access preamble fault tolerance parameter and the NodeB access detection precision value.
  • Product according to the obtained product value adjustment system timing, the data of the preamble sequence sent by the UE is intercepted in advance, and the data of the intercepted preamble sequence is detected to obtain the random access response delay information value, and Transmitting the random access response delay information value to the UE;
  • the UE is configured to: after receiving the broadcast message of the system, generate a preamble sequence according to a parameter configuration of the current cell carried in the system broadcast message, and send the preamble sequence to the NodeB; and after receiving the random access response delay information value, This value is compared with the random access preamble fault tolerance parameter, and the timing adjustment is performed according to the comparison result. Further, the timing adjustment performed by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter includes:
  • preamble _ offset fault tolerant random access preamble parameters T A delay information is a random access response value.
  • the random access preamble fault tolerance parameter set by the NodeB is a random access preamble fault tolerance parameter that can satisfy all types of UEs.
  • the NodeB of the embodiment of the present invention includes a broadcast module and a detection module, and the broadcast module is configured to: set a random access preamble fault tolerance parameter of the UE, add it to a broadcast message of the NodeB system, and then broadcast the system broadcast message. ;
  • the detecting module is configured to: receive a preamble sequence sent by the UE, periodically intercept the data of the preamble sequence, detect the intercepted data, obtain a random access response delay information value, and send the data to the UE.
  • the detecting module is further configured to: calculate a product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB, and adjust the system timing according to the obtained product value to advance the product value of the product value to intercept the UE.
  • the preamble sequence data is used to detect the intercepted preamble sequence data to obtain a random access response delay information value.
  • the broadcast module is further configured to: set the random access preamble fault tolerance parameter to a random access preamble fault tolerance parameter that satisfies all types of UEs.
  • the UE of the embodiment of the present invention includes a preamble sequence generating module and a timing adjustment module, where the preamble sequence generating module is configured to: after receiving a system broadcast message sent by a base station (NodeB), according to the current cell carried in the system broadcast message The parameter configuration generates a preamble sequence, and sends the preamble sequence to the NodeB.
  • the timing adjustment module is configured to: after receiving the random access response delay information value sent by the NodeB, the random access response delay information value and random access The leading fault tolerance parameters are compared, and the timing adjustment is performed based on the comparison result.
  • the preamble sequence generating module is further configured to: after generating a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message, calculate a random access preamble fault tolerance parameter carried in the system broadcast message and an access detection precision value of the NodeB The product, according to the obtained product value, the last sample of the generated preamble sequence as a tail sequence, the tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is sent to the sequence NodeB.
  • the present invention provides a method for processing random access and a base station and a terminal, which can solve the problem that the preamble detection error and the process cannot be successful by configuring the random access preamble fault tolerance parameter to solve the terminal timing jitter in the short-range random access.
  • the effect of preventing the detection error of the preamble sequence is prevented, the access waiting time is saved, and the success rate of the random access procedure of the short-distance terminal is improved.

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Abstract

The present invention provides a processing method, base station and terminal for random access. By configuring a random access preamble toleration parameter, it resolves the problems of the preamble detection error and unsuccessful flows caused by time sequence jitter of the terminal during random access in short distance, achieves the effect of preventing occurrence of preamble sequence detection error, saves the access wait time, and improves the success rate of the random access procedure of the terminal in short distance.

Description

一种随机接入的处理方法及基站和终端  Random access processing method and base station and terminal
技术领域 本发明涉及通信领域， 尤其涉及一种 LTE ( Long Term Evolution, 长期 演进） 系统中随机接入的处理方法及基站和终端。 The present invention relates to the field of communications, and in particular, to a method, a base station, and a terminal for processing random access in an LTE (Long Term Evolution) system.
背景技术 Background technique
在 LTE ( Long Term Evolution, 长期演进） 系统当中， 随机接入前导信 号通过随机接入信道进行发送， 在 UE ( User Equipment, 用户设备）还未获 得上行时间同步时， 用于基站 （NodeB )估计、 调整 UE上行发射的度量过 程。  In the LTE (Long Term Evolution) system, the random access preamble is transmitted through the random access channel, and is used for base station (NodeB) estimation when the UE (User Equipment) has not obtained uplink time synchronization. Adjust the measurement process of the UE uplink transmission.
参考附图 1 , 该图示出了现有技术中随机接入流程， 包括步骤： 步骤 S101 : NodeB在广播信道上广播系统广播消息； 该系统广播消息中包含当前小区的各项参数配置， 具体可以包含带宽信 息、 双工方式、 小区类型、 子帧配置、 随机接入格式时隙配置、 频域资源 RB ( Resource Blocks, 资源块 ) 占用、 NCS ( Number of cyclic shifts index, 循 环移位数值索引 ) 配置、 根序列逻辑索引、 循环移位选取等； 步骤 S102: UE下行同步， 搜索广播信道， 获得系统广播消息； 步骤 S103: UE根据该系统广播消息中包含的当前小区的各项参数配置 生成前导序列； 前导序列如图 2所示， 包括 CP ( Cyclic Prefix, 循环前缀）和检测数据 序列 Sequence。 其中， 前导序列的相关峰值信息会在选定的根序列循环移位 区域的起始位置； 步骤 S104: UE将生成的前导序列通过天线接口发送给 NodeB; 步骤 S105: NodeB接收 UE发送来的前导序列， 定时截取该前导序列数 据， 然后对所截取的数据进行检测， 得到随机接入响应延迟信息 值； 随机接入响应延迟信息 TA值就是 UE与 NodeB之间的传输时间， 直接反 映出 UE 与 NodeB 接收天线的相对位置。 协议中随机接入 值的范围为 0-1282, = 0的时候即代表 UE与 NodeB之间没有需要克服的传输延迟， 两者的时序是对齐的。 步骤 S106: NodeB向 UE反馈该得到的随机接入响应延迟信息 值， UE 判断该 值，如果不为 0,则进入步骤 S107;如果为 0,则直接进入步骤 S108; 步骤 S107: 提前自身的时序， 然后执行步骤 S108; 步骤 S108: 执行后续处理流程。 但是， 在实际应用场景当中， UE在离 NodeB接收天线较近的地方进行 随机接入， 在 UE的时序会出现有不同程度的抖动、 稍稍提前， 抖动的时序 偏差大于 UE与 NodeB之间信号传输时间的时候，将造成 preamble前导序列 数据截取错误、 频域自相关峰值信息偏移， NodeB接入检测错误， 过程无法 继续进行， 而需要重新发起新的流程。 Referring to FIG. 1, the figure shows a random access procedure in the prior art, including the following steps: Step S101: A NodeB broadcasts a system broadcast message on a broadcast channel. The system broadcast message includes configuration parameters of a current cell, specifically It may include bandwidth information, duplex mode, cell type, subframe configuration, random access format slot configuration, frequency domain resource RB (Resource Blocks), NCS (Number of cyclic shifts index) Configuration, root sequence logical index, cyclic shift selection, etc.; Step S102: UE downlink synchronization, searching for a broadcast channel, obtaining a system broadcast message; Step S103: The UE generates a parameter according to various parameters of the current cell included in the system broadcast message The preamble sequence; the preamble sequence is shown in Figure 2, including CP (Cyclic Prefix) and detection data sequence. The relevant peak information of the preamble sequence is in the start position of the cyclic sequence shift region of the selected root sequence. Step S104: The UE sends the generated preamble sequence to the NodeB through the antenna interface. Step S105: The NodeB receives the preamble sent by the UE. Sequence, periodically intercepting the preamble sequence data, and then detecting the intercepted data to obtain a random access response delay information value; The random access response delay information T A value is the transmission time between the UE and the NodeB, and directly reflects the relative position of the UE and the NodeB receiving antenna. The random access value in the protocol ranges from 0-1282. When = 0, there is no transmission delay between the UE and the NodeB. The timing of the two is aligned. Step S106: The NodeB feeds back the obtained random access response delay information value to the UE, and the UE determines the value. If not, the process proceeds to step S107. If it is 0, the process directly proceeds to step S108. Step S107: advance its own timing. Then, step S108 is performed; step S108: a subsequent processing flow is performed. However, in the actual application scenario, the UE performs random access in a place close to the receiving antenna of the NodeB, and there are different degrees of jitter and a slight advance in the timing of the UE, and the timing deviation of the jitter is greater than the signal transmission between the UE and the NodeB. In time, the preamble preamble sequence data interception error, the frequency domain autocorrelation peak information offset, the NodeB access detection error, the process cannot continue, and a new process needs to be re-initiated.
发明内容 本发明要解决的技术问题是提供一种随机接入的处理方法及基站和终 端，克服现有技术中存在的 LTE系统近距离随机接入时可能出现的前导序列 数据截取错误造成误检的问题和缺陷。 为了解决上述技术问题， 本发明提供一种随机接入的处理方法， 包括： 基站（NodeB )设置终端 （UE )的随机接入前导容错参数， 将其添加进SUMMARY OF THE INVENTION The technical problem to be solved by the present invention is to provide a random access processing method, a base station, and a terminal, which overcomes the misdetection of preamble data interception errors that may occur when the LTE system is short-range random access existing in the prior art. Problems and defects. In order to solve the above technical problem, the present invention provides a random access processing method, including: a base station (NodeB) setting a terminal (UE) random access preamble fault tolerance parameter, adding it into
NodeB系统广播消息中， 然后广播该系统广播消息； The NodeB system broadcasts a message, and then broadcasts the system broadcast message;
UE在接收到该系统广播消息后， 根据该系统广播消息中携带的当前小 区的参数配置生成前导序列； After receiving the system broadcast message, the UE generates a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message;
UE计算该系统广播消息中携带的随机接入前导容错参数与 NodeB的接 入检测精度值之积， 根据得到的积值将生成的前导序列最后的该积值个釆样 点作为尾序列， 将该尾序列搬移至前导序列的循环前缀的前方， 然后将处理 后的前导序列发送给 NodeB； NodeB接收 UE发送来的前导序列， 定时截取该前导序列的数据， 对所 截取的数据进行检测， 得到随机接入响应延迟信息值， 并将其发送给 UE; The UE calculates a product of the random access preamble fault tolerance parameter carried in the system broadcast message and the access detection precision value of the NodeB, and uses the product value to generate the last sample value of the preamble sequence as a tail sequence. The tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is sent to the NodeB; The NodeB receives the preamble sequence sent by the UE, periodically intercepts the data of the preamble sequence, detects the intercepted data, obtains a random access response delay information value, and sends the delay information value to the UE;
UE接收到随机接入响应延迟信息值后， 将该值与随机接入前导容错参 数进行比较， 根据比较结果进行时序调整。 优选地， UE根据随机接入响应延迟信息值与随机接入前导容错参数进 行比较的结果进行时序调整的步骤包括： 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble— offset— TA、 ^ 、', 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； 其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 优选地， 在 NodeB截取前导序列的数据的步骤中， 所述 NodeB依照随 机接入前导容错参数为 0的情况， 按照系统预设的定时进行数据截取。 优选地， 所述 NodeB 设置的随机接入前导容错参数为可满足所有类型 UE的随机接入前导容错参数。 为了解决上述技术问题， 本发明提供一种随机接入的处理方法， 包括： 基站（NodeB )设置终端 （UE )的随机接入前导容错参数， 将其添加进After receiving the random access response delay information value, the UE compares the value with the random access preamble fault tolerance parameter, and performs timing adjustment according to the comparison result. Preferably, the step of performing timing adjustment by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter comprises: when the comparison result is T A > preamble offset, the UE advances its own timing access detection. precision value * (Τ Λ - preamble offset) th preclude samples; when the comparison is T a <when preamble offset, UE itself access timing lag detection accuracy value * (preamble- offset- T a, ^ , ', when the comparison result is = preamble _ offset, the timing of the UE and the NodeB has been aligned, no timing adjustment;. wherein, preamble _ offset parameter fault tolerant random access preamble, T a delay value random access response information preferably, In the step of the NodeB intercepting the data of the preamble sequence, the NodeB performs data interception according to a preset timing of the system according to the random access preamble fault tolerance parameter of 0. Preferably, the random access preamble fault tolerance parameter set by the NodeB is used. The random access preamble fault tolerance parameter can satisfy all types of UEs. To solve the above technical problem, the present invention provides a random access The processing method includes: setting, by a base station (NodeB), a random access preamble fault tolerance parameter of the terminal (UE), adding the
NodeB系统广播消息中， 然后广播该系统广播消息； The NodeB system broadcasts a message, and then broadcasts the system broadcast message;
UE在接收到该系统广播消息后， 根据该系统广播消息中携带的当前小 区的参数配置生成前导序列， 并将其发送给 NodeB; After receiving the system broadcast message, the UE generates a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message, and sends the preamble sequence to the NodeB;
NodeB根据该随机接入前导容错参数与 NodeB 的接入检测精度值之积 得到的积值调整系统定时为提前该积值个釆样点来截取 UE发送来的前导序 列的数据， 对所截取的前导序列的数据进行检测得到随机接入响应延迟信息 值， 并将该随机接入响应延迟信息值发送给该 UE; The NodeB adjusts the system based on the product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB to adjust the system timing to advance the preamble sent by the UE. The data of the column, the data of the intercepted preamble sequence is detected to obtain a random access response delay information value, and the random access response delay information value is sent to the UE;
UE接收到随机接入响应延迟信息值后， 将该值与随机接入前导容错参 数进行比较， 根据比较结果进行时序调整。 优选地， UE根据随机接入响应延迟信息值与随机接入前导容错参数进 行比较的结果进行时序调整的步骤包括： 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble— offset— TA、 ^ 、', 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； 其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 优选地， 所述 NodeB 设置的随机接入前导容错参数为可满足所有类型After receiving the random access response delay information value, the UE compares the value with the random access preamble fault tolerance parameter, and performs timing adjustment according to the comparison result. Preferably, the step of performing timing adjustment by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter comprises: when the comparison result is T A > preamble offset, the UE advances its own timing access detection. precision value * (Τ Λ - preamble offset) th preclude samples; when the comparison is T a <when preamble offset, UE itself access timing lag detection accuracy value * (preamble- offset- T a, ^ , ', when the comparison result is = preamble _ offset, the timing of the UE and the NodeB has been aligned, no timing adjustment;. wherein, preamble _ offset parameter fault tolerant random access preamble, T a delay value random access response information preferably, The random access preamble fault tolerance parameter set by the NodeB is sufficient for all types
UE的随机接入前导容错参数。 为了解决上述技术问题， 本发明提供一种基站 （NodeB ) , 包括广播模 块和检测模块， 所述广播模块设置成： 设置终端（UE )的随机接入前导容错参数， 将其 添加进 NodeB系统广播消息中， 然后广播该系统广播消息； 所述检测模块设置成： 接收 UE发送来的前导序列， 定时截取该前导序 列的数据， 对所截取的数据进行检测， 得到随机接入响应延迟信息值， 并将 其发送给 UE。 优选地，所述检测模块还设置成：计算该随机接入前导容错参数与 NodeB 的接入检测精度值之积， 根据得到的积值调整系统定时为提前该积值个釆样 点来截取 UE发送来的前导序列数据， 对所截取的前导序列数据进行检测得 到随机接入响应延迟信息值。 优选地， 所述广播模块还设置成： 将随机接入前导容错参数设置为可满 足所有类型 UE的随机接入前导容错参数。 为了解决上述技术问题， 本发明提供一种终端（UE ) , 包括前导序列生 成模块和时序调整模块， 所述前导序列生成模块设置成： 接收到基站 （NodeB )发送的系统广播 消息后， 根据该系统广播消息中携带的当前小区的参数配置生成前导序列， 将前导序列发送给该 NodeB； The UE's random access preamble fault tolerance parameter. In order to solve the above technical problem, the present invention provides a base station (NodeB), including a broadcast module and a detection module, where the broadcast module is configured to: set a random access preamble fault tolerance parameter of the terminal (UE), and add it to the NodeB system broadcast. In the message, the system broadcast message is then broadcasted; the detecting module is configured to: receive a preamble sequence sent by the UE, periodically intercept the data of the preamble sequence, and detect the intercepted data to obtain a random access response delay information value, And send it to the UE. Preferably, the detecting module is further configured to: calculate a product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB, and adjust the system timing according to the obtained product value to advance the product value of the sample point to intercept the UE. The transmitted preamble sequence data is detected by the intercepted preamble sequence data. The random access response delay information value. Preferably, the broadcast module is further configured to: set the random access preamble fault tolerance parameter to a random access preamble fault tolerance parameter that can satisfy all types of UEs. In order to solve the above technical problem, the present invention provides a terminal (UE), including a preamble sequence generation module and a timing adjustment module, where the preamble sequence generation module is configured to: after receiving a system broadcast message sent by a base station (NodeB), according to the The parameter configuration of the current cell carried in the system broadcast message generates a preamble sequence, and sends the preamble sequence to the NodeB;
所述时序调整模块设置成：在接收到该 NodeB发送的随机接入响应延迟 信息值后， 将随机接入响应延迟信息值与随机接入前导容错参数进行比较， 根据比较结果进行时序调整。 优选地， 所述前导序列生成模块还设置成： 根据该系统广播消息中携带 的当前小区的参数配置生成前导序列后， 计算该系统广播消息中携带的随机 接入前导容错参数与 NodeB的接入检测精度值之积，根据得到的积值将生成 的前导序列最后的该积值个釆样点作为尾序列， 将该尾序列搬移至前导序列 的循环前缀的前方， 然后将处理后的前导序列发送给该 NodeB。 优选地， 所述时序调整模块还设置成： 根据随机接入响应延迟信息值与 随机接入前导容错参数进行比较的结果进行时序调整时， 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble _ offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble _ offset _ )个釆样点； 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； 其中， prea ^o fet为随机接入前导容错参数， 为随机接入响应延迟 信息值。 本发明提供的一种随机接入的处理方法及基站和终端， 可根据调研后各 厂商终端产品的情况， 灵活配置随机接入前导容错参数解决近距离随机接入 时终端时序抖动造成前导检测错误、 流程不能成功的问题， 达到了防止出现 前导序列检测错误的效果， 节省了接入等待时间， 提高了近距离终端随机接 入过程的成功率。 The timing adjustment module is configured to: after receiving the random access response delay information value sent by the NodeB, compare the random access response delay information value with the random access preamble fault tolerance parameter, and perform timing adjustment according to the comparison result. Preferably, the preamble sequence generating module is further configured to: after generating a preamble sequence according to a parameter configuration of a current cell carried in the system broadcast message, calculate a random access preamble fault tolerance parameter and a NodeB access carried in the system broadcast message Detecting the product of the precision values, and using the obtained product value as the tail sequence of the last product value of the generated leader sequence, moving the tail sequence to the front of the cyclic prefix of the preamble sequence, and then processing the processed preamble sequence Sent to the NodeB. Preferably, the timing adjustment module is further configured to: when the timing adjustment is performed according to a result of comparing the random access response delay information value with the random access preamble fault tolerance parameter, when the comparison result is T A > preamble offset, the UE will itself the detection accuracy of the access timing advance value * (Τ Λ - preamble _ offset ) th preclude samples; when the comparison is T a <when preamble offset, UE itself access timing lag detection accuracy value * (preamble _ offset _ When the comparison result is = preamble _ offset, the timing of the UE and the NodeB are aligned, and no timing adjustment is performed; wherein prea ^o fet is a random access preamble fault tolerance parameter, which is a random access response delay information. value. The method for processing random access and the base station and the terminal provided by the present invention can flexibly configure the random access preamble fault tolerance parameter according to the situation of the terminal products of each vendor after the investigation to solve the preamble detection error caused by the terminal timing jitter of the short-range random access. The problem that the process cannot be successful achieves the effect of preventing the detection error of the preamble sequence, saves the access waiting time, and improves the success rate of the random access process of the short-range terminal.
附图概述 图 1 是现有技术中随机接入处理流程图； 图 2 是前导序列数据格式示意图； 图 3是本发明第一实施例一种随机接入的处理方法流程图； 图 4A是本发明第一实施例 UE生成的前导序列示意图； 图 4B是本发明第一实施例最终发送给 NodeB的前导序列示意图； 图 5是本发明第二实施例一种随机接入的方法处理流程图。 1 is a flow chart of a random access process in the prior art; FIG. 2 is a schematic diagram of a preamble data format; FIG. 3 is a flow chart of a random access processing method according to a first embodiment of the present invention; FIG. 4B is a schematic diagram of a preamble sequence finally transmitted to a NodeB according to a first embodiment of the present invention; FIG. 5 is a flowchart of a method for random access according to a second embodiment of the present invention.
本发明的较佳实施方式 下面将结合附图详细介绍本发明的技术方案。 第一实施例： 参考图 3 , 该图示出了本发明实施例的一种随机接入的处理方法， 可解 决近距离终端时序抖动接入误检， 具体包含如下步骤： 步骤 S301 : NodeB在建立规划小区时， 可根据调研后各厂商终端 UE产 品的情况， 在保证不发生 UE近距离接入时序抖动接入误检的情况下， 合理 设置随机接入前导容错参数 preamble _ offset , 并将其添加进 NodeB 系统广播 消息中； BEST MODE FOR CARRYING OUT THE INVENTION The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. First Embodiment: Referring to FIG. 3, the figure shows a random access processing method according to an embodiment of the present invention, which can solve the short-distance terminal timing jitter access misdetection, and specifically includes the following steps: Step S301: NodeB is in When establishing a planned cell, according to the situation of the UE products of each vendor terminal after the investigation, the random access preamble fault tolerance parameter preamble _offset is reasonably set under the condition of ensuring that the UE short-distance access timing jitter access misdetection does not occur, and It is added to the NodeB system broadcast message;
步骤 S302: NodeB在广播信道上广播该系统广播消息；  Step S302: The NodeB broadcasts the system broadcast message on a broadcast channel.
该系统广播消息中包含随机接入前导容错参数 preamble offset和当前小 区的各项参数配置， 其中： 当前小区的各项参数配置可以包含带宽信息、 双 工方式、 小区类型、 子帧配置、 随机接入格式时隙配置、 频域资源 RB占用、 NCS 配置、 根序列逻辑索引、 循环移位选取等； 随机接入前导容错参数 prea ^o fet可以是根据调研后各厂商终端 UE产品的情况， 在保证不发生 UE近距离接入时序抖动检测的情况下人为设置的可满足所有类型 UE的随 机接入前导容错参数。 步骤 S303: UE进行下行同步， 搜索广播信道， 获得该系统广播消息； 步骤 S304: UE根据该系统广播消息中包含的当前小区的各项参数配置 生成前导序列； The system broadcast message includes a random access preamble fault tolerance parameter preamble offset and various parameter configurations of the current cell, where: each parameter configuration of the current cell may include bandwidth information, and Work mode, cell type, subframe configuration, random access format slot configuration, frequency domain resource RB occupancy, NCS configuration, root sequence logical index, cyclic shift selection, etc.; random access preamble fault tolerance parameter prea ^o fet can be According to the situation of the UE products of the vendors after the investigation, the random access preamble fault tolerance parameters of all types of UEs can be manually set in the case of ensuring that the UE short-range access timing jitter detection does not occur. Step S303: The UE performs downlink synchronization, searches for a broadcast channel, and obtains the system broadcast message. Step S304: The UE generates a preamble sequence according to the parameter configuration of the current cell included in the system broadcast message.
UE根据该系统广播消息中包含的当前小区的各项参数配置生成前导序 列时， 还需要先根据这些参数选取合适的循环移位 Cv值， 然后再生成相应 的前导序列， 具体生成前导序列的方式可以按照现有方式进行， 这里不再赘 述。 When the UE generates the preamble sequence according to the parameter configuration of the current cell included in the broadcast message of the system, it is also necessary to select an appropriate cyclic shift Cv value according to the parameters, and then generate a corresponding preamble sequence to generate a preamble sequence. It can be done in the existing way, and will not be described here.
步骤 S305: UE计算该系统广播消息中携带的随机接入前导容错参数与 NodeB的接入检测精度值之积， 根据得到的积值将该生成的前导序列最后的 该积值个釆样点作为尾序列， 将该尾序列搬移至前导序列的 CP ( Cyclic Prefix, 循环前缀）的前方， 然后将该处理后的前导序列通过天线接口发送给 NodeB; 参考图 4A, 该图示出了 UE生成的前导序列示意图； 图 4B示出最终发 送给 NodeB的前导序列示意图。 每个系统的接入检测精度值是系统建立时规划好的， 在 LTE系统中， 该 接入检测精度值为 16, 即在 LTE系统中， 本实施例是， 令 UE在生成前导序 列后， 可以将该前导序列的最后（16* preamble _ offset )个釆样点作为尾序列， 并将该尾序列搬移至前导序列的 CP前方， 然后将调整完数据顺序后的前导 序列发送给 NodeB。 步骤 S306: NodeB接收 UE发送来的前导序列， 定时截取该前导序列数 据， 然后对所截取的数据进行检测， 得到随机接入响应延迟信息 值； 在本发明实施例的该步骤中， NodeB忽略 prea ?_o fet的配置数值， 始 终依照 preamble _ offset为 0的情况 , 按照系统定时截取数据进行检测 , 将测量 得到的随机接入 TA值反馈给 UE; 步骤 S307: UE获得与自身对应的随机接入响应延迟信息 值，将该 值 与该 UE对应的随机接入前导容错参数 prea ?_o fet进行比较， 根据比较结 果进行时序调整； 所述比较结果与时序调整的对应关系如下： Step S305: The UE calculates a product of the random access preamble fault tolerance parameter carried in the system broadcast message and the access detection precision value of the NodeB, and uses the last product value of the generated preamble sequence as a sample point according to the obtained product value. a tail sequence, the tail sequence is moved to the front of the CP (Cyclic Prefix) of the preamble sequence, and then the processed preamble sequence is sent to the NodeB through the antenna interface; referring to FIG. 4A, the figure shows the UE generated Schematic diagram of the preamble sequence; Figure 4B shows a schematic diagram of the preamble sequence finally sent to the NodeB. The access detection accuracy value of each system is planned when the system is established. In the LTE system, the access detection precision is 16, that is, in the LTE system, in this embodiment, after the UE generates the preamble sequence, The last (16* preamble_offset) sample point of the preamble sequence may be used as a tail sequence, and the tail sequence is moved to the front of the CP of the preamble sequence, and then the preamble sequence after the data sequence is adjusted is sent to the NodeB. Step S306: The NodeB receives the preamble sequence sent by the UE, periodically intercepts the preamble sequence data, and then detects the intercepted data to obtain a random access response delay information value. In this step of the embodiment of the present invention, the NodeB ignores the prea. _o fet configuration value, always according to the preamble _ offset is 0, according to the system timing intercept data for detection, the measured random access T A value is fed back to the UE; Step S307: The UE obtains a random access response delay information value corresponding to itself, compares the value with a random access preamble fault tolerance parameter prea?_ofet corresponding to the UE, and performs timing adjustment according to the comparison result; the comparison result is The corresponding relationship of timing adjustment is as follows:
当 ΓΑ > preamble _off set , UE 需要将自身的时序提前接入检测精度值When Γ Α > preamble _off set , the UE needs to advance its timing into the detection precision value.
* (ΤΛ - preamble offset)个釆样点； 当 T < preamble _ offset , UE 需要将自身的时序滞后接入检测精度值* (Τ Λ - preamble offset) th preclude samples; when T <preamble _ offset, UE needs to access its own timing lag detection accuracy value
* (preamble _ offset - ΤΛ )个釆样点； 当 = preamble offset , UE与 NodeB的时序已经对齐， 不需要进行调整。 步骤 S308: UE按照调整之后的时序进行接入竟争解决、 资源分配申请 等后续流程。 * (preamble _ offset - Τ Λ ) a sample point; when = preamble offset , the timing of the UE and NodeB are already aligned, no adjustment is needed. Step S308: The UE performs subsequent processes such as access competition resolution and resource allocation application according to the sequence after the adjustment.
相应地，本发明还提出一种系统，用以实现上述方法，包括基站（NodeB ) 和终端 （UE ) , 其中： NodeB设置成： 设置 UE的随机接入前导容错参数， 将其添加进 NodeB 系统广播消息中， 然后广播该系统广播消息； 以及接收 UE发送来的前导序 歹 |J , 定时截取该前导序列的数据， 对所截取的数据进行检测， 得到随机接入 响应延迟信息值， 并将其发送给 UE。 进一步地， NodeB设置成： 依照随机接入前导容错参数为 0的情况， 按 照系统预设的定时来对 UE发送来的前导序列定时进行数据截取。 Correspondingly, the present invention also provides a system for implementing the foregoing method, including a base station (NodeB) and a terminal (UE), where: the NodeB is set to: set a random access preamble fault tolerance parameter of the UE, and add it to the NodeB system. Broadcasting the system broadcast message, and receiving the preamble 歹|J sent by the UE, periodically intercepting the data of the preamble sequence, detecting the intercepted data, obtaining a random access response delay information value, and It is sent to the UE. Further, the NodeB is configured to: perform data interception on the preamble sequence sent by the UE according to the preset timing of the system according to the case where the random access preamble fault tolerance parameter is 0.
UE设置成： 在接收到系统广播消息后， 根据该系统广播消息中携带的 当前小区的参数配置生成前导序列， 计算该系统广播消息中携带的随机接入 前导容错参数与 NodeB的接入检测精度值之积，根据得到的积值将该生成的 前导序列最后的该积值个釆样点作为尾序列， 将该尾序列搬移至前导序列的 循环前缀的前方， 然后将该处理后的前导序列发送给 NodeB; 以及在接收到 NodeB发送来的随机接入响应延迟信息值后， 将该值与随机接入前导容错参 数进行比较， 根据比较结果进行时序调整。 进一步地， UE根据随机接入响应延迟信息值与随机接入前导容错参数 进行比较的结果进行时序调整包括： The UE is configured to: after receiving the system broadcast message, generate a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message, and calculate a random access preamble fault tolerance parameter carried in the system broadcast message and an access detection accuracy of the NodeB. a product of values, based on the obtained product value, the last sample of the generated preamble sequence as a tail sequence, the tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is Sending to the NodeB; and after receiving the random access response delay information value sent by the NodeB, comparing the value with the random access preamble fault tolerance parameter, and performing timing adjustment according to the comparison result. Further, the UE according to the random access response delay information value and the random access preamble fault tolerance parameter The timing adjustments for the results of the comparison include:
当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble _ offset - )个釆样点； 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； When the comparison is T A> when preamble offset, UE will access its detection precision timing advance value * (Τ Λ - preamble offset) th preclude samples; when the comparison result of T A <preamble offset, UE itself is Timing lag access detection accuracy value * (preamble _ offset - ) 釆 sample point; When the comparison result is = preamble _ offset, the timing of the UE and NodeB are aligned, no timing adjustment is performed;
其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 其中， 所述 NodeB设置的随机接入前导容错参数为可满足所有类型 UE 的随机接入前导容错参数。 Wherein, preamble _ offset parameter fault tolerant random access preamble, T A random access response delay information value. The random access preamble fault tolerance parameter set by the NodeB is a random access preamble fault tolerance parameter that can satisfy all types of UEs.
第二实施例： 参考图 5 , 该图示出了本发明另一种随机接入的处理方法， 可解决近距 离终端时序抖动接入误检， 具体包含如下步骤： 步骤 S501 : NodeB在建立规划小区时， 可根据调研后各厂商终端 UE产 品的情况， 在保证不发生 UE近距离接入时序抖动接入误检的情况下， 合理 设置随机接入前导容错参数 preamble _ offset , 并将其添加进 NodeB 系统广播 消息中； Second Embodiment: Referring to FIG. 5, the figure shows another processing method for random access according to the present invention, which can solve the short-distance terminal timing jitter access misdetection, and specifically includes the following steps: Step S501: NodeB is establishing a plan In the case of a cell, according to the situation of the UE products of each vendor terminal after the investigation, the random access preamble fault-predging parameter preamble _ offset may be reasonably set and ensured when the UE short-distance access timing jitter access misdetection does not occur. Into the NodeB system broadcast message;
步骤 S502: NodeB在广播信道上广播该系统广播消息；  Step S502: The NodeB broadcasts the system broadcast message on a broadcast channel.
该系统广播消息中包含随机接入前导容错参数 preamble offset和当前小 区的各项参数配置， 其中： 当前小区的各项参数配置可以包含带宽信息、 双 工方式、 小区类型、 子帧配置、 随机接入格式时隙配置、 频域资源 RB占用、 NCS 配置、 根序列逻辑索引、 循环移位选取等； 随机接入前导容错参数 prea ^o fet可以是根据调研后各厂商终端 UE产品的情况， 在保证不发生 UE近距离接入时序抖动检测的情况下人为设置的可满足所有类型 UE的随 机接入前导容错参数。 步骤 S503: UE进行下行同步， 搜索广播信道， 获得该系统广播消息； 步骤 S504: UE根据该系统广播消息中包含的当前小区的各项参数配置 生成前导序列； The broadcast message of the system includes a random access preamble fault preamble offset and a parameter configuration of the current cell, where: the parameter configuration of the current cell may include bandwidth information, duplex mode, cell type, subframe configuration, and random access. Incoming format time slot configuration, frequency domain resource RB occupation, NCS configuration, root sequence logical index, cyclic shift selection, etc.; random access preamble fault tolerance parameter prea ^o fet may be based on the situation of each manufacturer terminal UE product after the investigation, It is guaranteed that the random access preamble fault tolerance parameter of all types of UEs can be set manually without the UE short-distance access timing jitter detection. Step S503: The UE performs downlink synchronization, searches for a broadcast channel, and obtains a broadcast message of the system. Step S504: The UE generates a preamble sequence according to each parameter configuration of the current cell included in the system broadcast message.
UE根据该系统广播消息中包含的当前小区的各项参数配置生成前导序 列时， 还需要先根据这些参数选取合适的循环移位 Cv值， 然后再生成相应 的前导序列， 具体生成前导序列的方式可以按照现有方式进行， 这里不再赘 述。 上述步骤 S501~S504与第一实施例中的步骤 S301~S304相同； 步骤 S505: UE将步骤 S504 中产生的前导序列直接由天线接口发送给 NodeB; 步骤 S506: NodeB计算该随机接入前导容错参数与 NodeB的接入检测 精度值之积，根据得到的积值调整系统定时为提前该积值个釆样点来截取 UE 发送来的前导序列数据， 对所截取的前导序列数据进行检测得到随机接入响 应延迟信息值， 并将该随机接入响应延迟信息值发送给该 UE; 每个系统的接入检测精度值是系统建立时规划好的， 在 LTE系统中， 该 接入检测精度值为 16, 即在 LTE系统中， 本实施例是， NodeB调整系统定 时， 提前（ 16* prea ^o fet )个釆样点来截取前导序列数据进行检测， 然 后将测量得到的随机接入响应延迟信息 TA值反馈给 UE侧； 步骤 S507: UE获得与自身对应的随机接入响应延迟信息 值，将该 值 与该 UE对应的随机接入前导容错参数 prea ? _o fet进行比较， 根据比较结 果进行时序调整； When the UE generates the preamble sequence according to the parameter configuration of the current cell included in the broadcast message of the system, it is also necessary to select an appropriate cyclic shift Cv value according to the parameters, and then generate a corresponding preamble sequence to generate a preamble sequence. It can be done in the existing way, and will not be described here. The steps S501 to S504 are the same as the steps S301 to S304 in the first embodiment. Step S505: The UE sends the preamble sequence generated in step S504 directly to the NodeB by the antenna interface. Step S506: The NodeB calculates the random access preamble fault tolerance parameter. And the product of the access detection precision value of the NodeB, according to the obtained product value adjustment system timing, the preamble sequence data sent by the UE is intercepted in advance of the product value, and the intercepted preamble sequence data is detected and randomly connected. In response to the delay information value, and sending the random access response delay information value to the UE; the access detection precision value of each system is planned when the system is established, and in the LTE system, the access detection precision value is 16, in the LTE system, in this embodiment, the NodeB adjusts the system timing, advances (16* prea ^o fet ) samples to intercept the preamble sequence data for detection, and then measures the obtained random access response delay information. The T A value is fed back to the UE side; Step S507: The UE obtains a random access response delay information value corresponding to itself, and the value is associated with the random access preamble fault tolerance parameter prea of the UE ? _o fet for comparison, based on the comparison results for timing adjustment;
当 ΓΑ > preamble _off set , UE 需要将自身的时序提前接入检测精度值When Γ Α > preamble _off set , the UE needs to advance its timing into the detection precision value.
* (ΤΛ - preamble offset)个釆样点； 当 T < preamble _ offset , UE 需要将自身的时序滞后接入检测精度值* (Τ Λ - preamble offset) th preclude samples; when T <preamble _ offset, UE needs to access its own timing lag detection accuracy value
* (preamble _ offset - ΤΛ )个釆样点； 当 = preamble offset , UE与 NodeB的时序已经对齐， 不需要进行调整。 步骤 S508: UE按照调整之后的时序进行接入竟争解决、 资源分配申请 等后续流程。 相应地，本发明还提出一种系统，用以实现上述方法，包括基站（NodeB ) 和终端 （UE ) , 其中： * (preamble _ offset - Τ Λ ) a sample point; when = preamble offset , the timing of the UE and NodeB are already aligned, no adjustment is needed. Step S508: The UE performs subsequent processes such as access competition resolution and resource allocation application according to the sequence after the adjustment. Correspondingly, the present invention also provides a system for implementing the above method, including a base station (NodeB) and a terminal (UE), where:
NodeB设置成：设置 UE的随机接入前导容错参数，并将其添加进 NodeB 系统广播消息中， 然后广播该系统广播消息； 以及计算该随机接入前导容错 参数与 NodeB的接入检测精度值之积，根据得到的积值调整系统定时为提前 该积值个釆样点来截取 UE发送来的前导序列的数据， 对所截取的前导序列 的数据进行检测得到随机接入响应延迟信息值， 并将该随机接入响应延迟信 息值发送给该 UE; The NodeB is configured to: set a random access preamble fault tolerance parameter of the UE, add it to the NodeB system broadcast message, and then broadcast the system broadcast message; and calculate the random access preamble fault tolerance parameter and the NodeB access detection precision value. Product, according to the obtained product value adjustment system timing, the data of the preamble sequence sent by the UE is intercepted in advance, and the data of the intercepted preamble sequence is detected to obtain the random access response delay information value, and Transmitting the random access response delay information value to the UE;
UE设置成： 接收到该系统广播消息后， 根据该系统广播消息中携带的 当前小区的参数配置生成前导序列， 并将其发送给 NodeB; 以及在接收到随 机接入响应延迟信息值后， 将该值与随机接入前导容错参数进行比较， 根据 比较结果进行时序调整。 进一步地， UE根据随机接入响应延迟信息值与随机接入前导容错参数 进行比较的结果进行时序调整包括： The UE is configured to: after receiving the broadcast message of the system, generate a preamble sequence according to a parameter configuration of the current cell carried in the system broadcast message, and send the preamble sequence to the NodeB; and after receiving the random access response delay information value, This value is compared with the random access preamble fault tolerance parameter, and the timing adjustment is performed according to the comparison result. Further, the timing adjustment performed by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter includes:
当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble _ offset _ )个釆样点； 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； When the comparison is T A> when preamble offset, UE will access its detection precision timing advance value * (Τ Λ - preamble offset) th preclude samples; when the comparison result of T A <preamble offset, UE itself is The timing lag access detection precision value * (preamble _ offset _ ) is sampled; when the comparison result is = preamble _ offset, the timing of the UE and the NodeB are aligned, and timing adjustment is not performed;
其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 其中， 所述 NodeB设置的随机接入前导容错参数为可满足所有类型 UE 的随机接入前导容错参数。 Wherein, preamble _ offset fault tolerant random access preamble parameters, T A delay information is a random access response value. The random access preamble fault tolerance parameter set by the NodeB is a random access preamble fault tolerance parameter that can satisfy all types of UEs.
综上， 本发明实施例的 NodeB, 包括广播模块和检测模块， 所述广播模块设置成： 设置 UE的随机接入前导容错参数， 将其添加进 NodeB系统广播消息中， 然后广播该系统广播消息； 所述检测模块设置成： 接收 UE发送来的前导序列， 定时截取该前导序 列的数据， 对所截取的数据进行检测， 得到随机接入响应延迟信息值， 并将 其发送给 UE。 所述检测模块还设置成：计算该随机接入前导容错参数与 NodeB的接入 检测精度值之积， 根据得到的积值调整系统定时为提前该积值个釆样点来截 取 UE发送来的前导序列数据， 对所截取的前导序列数据进行检测得到随机 接入响应延迟信息值。 所述广播模块还设置成： 将随机接入前导容错参数设置为可满足所有类 型 UE的随机接入前导容错参数。 本发明实施例的 UE, 包括前导序列生成模块和时序调整模块， 所述前导序列生成模块设置成： 接收到基站 （NodeB )发送的系统广播 消息后， 根据该系统广播消息中携带的当前小区的参数配置生成前导序列， 将前导序列发送给该 NodeB； 所述时序调整模块设置成：在接收到该 NodeB发送的随机接入响应延迟 信息值后， 将随机接入响应延迟信息值与随机接入前导容错参数进行比较， 根据比较结果进行时序调整。 所述前导序列生成模块还设置成： 根据该系统广播消息中携带的当前小 区的参数配置生成前导序列后， 计算该系统广播消息中携带的随机接入前导 容错参数与 NodeB的接入检测精度值之积，根据得到的积值将生成的前导序 列最后的该积值个釆样点作为尾序列， 将该尾序列搬移至前导序列的循环前 缀的前方， 然后将处理后的前导序列发送给该 NodeB。 所述时序调整模块还设置成： 根据随机接入响应延迟信息值与随机接入 前导容错参数进行比较的结果进行时序调整时， 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble _ offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble _ offset _ )个釆样点； 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐 , 不 进行时序调整； 其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 In summary, the NodeB of the embodiment of the present invention includes a broadcast module and a detection module, and the broadcast module is configured to: set a random access preamble fault tolerance parameter of the UE, add it to a broadcast message of the NodeB system, and then broadcast the system broadcast message. ; The detecting module is configured to: receive a preamble sequence sent by the UE, periodically intercept the data of the preamble sequence, detect the intercepted data, obtain a random access response delay information value, and send the data to the UE. The detecting module is further configured to: calculate a product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB, and adjust the system timing according to the obtained product value to advance the product value of the product value to intercept the UE. The preamble sequence data is used to detect the intercepted preamble sequence data to obtain a random access response delay information value. The broadcast module is further configured to: set the random access preamble fault tolerance parameter to a random access preamble fault tolerance parameter that satisfies all types of UEs. The UE of the embodiment of the present invention includes a preamble sequence generating module and a timing adjustment module, where the preamble sequence generating module is configured to: after receiving a system broadcast message sent by a base station (NodeB), according to the current cell carried in the system broadcast message The parameter configuration generates a preamble sequence, and sends the preamble sequence to the NodeB. The timing adjustment module is configured to: after receiving the random access response delay information value sent by the NodeB, the random access response delay information value and random access The leading fault tolerance parameters are compared, and the timing adjustment is performed based on the comparison result. The preamble sequence generating module is further configured to: after generating a preamble sequence according to the parameter configuration of the current cell carried in the system broadcast message, calculate a random access preamble fault tolerance parameter carried in the system broadcast message and an access detection precision value of the NodeB The product, according to the obtained product value, the last sample of the generated preamble sequence as a tail sequence, the tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is sent to the sequence NodeB. The timing adjustment module is further configured to: when the timing adjustment is performed according to a result of comparing the random access response delay information value with the random access preamble fault tolerance parameter, when the comparison result is T A > preamble offset, the UE advances its own timing access detection precision value * (Τ Λ - preamble _ offset ) th preclude samples; when the comparison is T a <when preamble offset, UE itself access timing lag detection accuracy value * (preamble _ offset _) preclude th Sample point When the comparison result is = preamble _ offset, the timing of the UE and the NodeB has been aligned, timing adjustment is not performed; wherein, preamble _ offset parameter fault tolerant random access preamble, T A delay value random access response information.
尽管本发明结合特定实施例进行了描述， 但是对于本领域的技术人员来 说， 可以在不背离本发明的精神或范围的情况下进行修改和变化。 这样的修 改和变化被视作在本发明的范围和附加的权利要求书范围之内。 While the invention has been described in connection with the specific embodiments, the modifications and variations may be Such modifications and variations are considered to be within the scope of the invention and the scope of the appended claims.
工业实用性 本发明提供一种随机接入的处理方法及基站和终端， 可通过配置随机接 入前导容错参数解决近距离随机接入时终端时序抖动造成前导检测错误、 流 程不能成功的问题， 达到了防止出现前导序列检测错误的效果， 节省了接入 等待时间， 提高了近距离终端随机接入过程的成功率。 INDUSTRIAL APPLICABILITY The present invention provides a method for processing random access and a base station and a terminal, which can solve the problem that the preamble detection error and the process cannot be successful by configuring the random access preamble fault tolerance parameter to solve the terminal timing jitter in the short-range random access. The effect of preventing the detection error of the preamble sequence is prevented, the access waiting time is saved, and the success rate of the random access procedure of the short-distance terminal is improved.

Claims

权 利 要 求 书 Claim
1、 一种随机接入的处理方法， 包括： 基站（NodeB )设置终端 （UE )的随机接入前导容错参数， 将其添加进 NodeB系统广播消息中， 然后广播该系统广播消息； UE在接收到该系统广播消息后， 根据该系统广播消息中携带的当前小 区的参数配置生成前导序列； A random access processing method, comprising: a base station (NodeB) setting a random access preamble fault tolerance parameter of a terminal (UE), adding it to a NodeB system broadcast message, and then broadcasting the system broadcast message; the UE receiving After the system broadcasts the message, the preamble sequence is generated according to the parameter configuration of the current cell carried in the system broadcast message;
UE计算该系统广播消息中携带的随机接入前导容错参数与 NodeB的接 入检测精度值之积， 根据得到的积值将生成的前导序列最后的该积值个釆样 点作为尾序列， 将该尾序列搬移至前导序列的循环前缀的前方， 然后将处理 后的前导序列发送给 NodeB； The UE calculates a product of the random access preamble fault tolerance parameter carried in the system broadcast message and the access detection precision value of the NodeB, and uses the product value to generate the last sample value of the preamble sequence as a tail sequence. The tail sequence is moved to the front of the cyclic prefix of the preamble sequence, and then the processed preamble sequence is sent to the NodeB;
NodeB接收 UE发送来的前导序列， 定时截取该前导序列的数据， 对所 截取的数据进行检测， 得到随机接入响应延迟信息值， 并将其发送给 UE; The NodeB receives the preamble sequence sent by the UE, periodically intercepts the data of the preamble sequence, detects the intercepted data, obtains a random access response delay information value, and sends the result to the UE;
UE接收到随机接入响应延迟信息值后， 将该值与随机接入前导容错参 数进行比较， 根据比较结果进行时序调整。 After receiving the random access response delay information value, the UE compares the value with the random access preamble fault tolerance parameter, and performs timing adjustment according to the comparison result.
2、 如权利要求 1所述的方法， 其中， UE根据随机接入响应延迟信息值 与随机接入前导容错参数进行比较的结果进行时序调整的步骤包括： 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (ΤΛ - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble— offset— TA、 ^ 、', 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； 其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 2. The method as claimed in claim 1, wherein, the UE access preamble parameters fault tolerant result of comparing comprises the step of adjusting the timing delay information in response to the random access random value: When the comparison is T A> preamble offset time , UE will access its detection precision timing advance value * (Τ Λ - preamble offset) th preclude samples; when the comparison is T a <when preamble offset, UE itself access timing lag detection accuracy value * (preamble —offset — T A , ^ , ', when the comparison result is = preamble _ offset, the timing of the UE and the NodeB are aligned, and timing adjustment is not performed; wherein preamble _offset is a random access preamble fault tolerance parameter, and T A is random Access response delay information value.
3、 如权利要求 2所述的方法， 其中： 在 NodeB截取前导序列的数据的步骤中， 所述 NodeB依照随机接入前 导容错参数为 0的情况， 按照系统预设的定时进行数据截取。 3. The method according to claim 2, wherein: in the step of intercepting the data of the preamble sequence by the NodeB, the NodeB performs data interception according to a preset timing of the system according to a case where the random access preamble fault tolerance parameter is 0.
4、 如权利要求 1 ~ 3中任意一项所述的方法， 其中： 所述 NodeB设置的随机接入前导容错参数为可满足所有类型 UE的随机 接入前导容错参数。 The method according to any one of claims 1 to 3, wherein: the random access preamble fault tolerance parameter set by the NodeB is a random access preamble fault tolerance parameter that satisfies all types of UEs.
5、 一种随机接入的处理方法， 包括： 基站（NodeB )设置终端 （UE )的随机接入前导容错参数， 将其添加进 NodeB系统广播消息中， 然后广播该系统广播消息； UE在接收到该系统广播消息后， 根据该系统广播消息中携带的当前小 区的参数配置生成前导序列， 并将其发送给 NodeB; 5. A random access processing method, comprising: a base station (NodeB) setting a random access preamble fault tolerance parameter of a terminal (UE), adding it to a NodeB system broadcast message, and then broadcasting the system broadcast message; the UE receiving After the system broadcasts the message, the preamble sequence is generated according to the parameter configuration of the current cell carried in the system broadcast message, and is sent to the NodeB;
NodeB根据该随机接入前导容错参数与 NodeB 的接入检测精度值之积 得到的积值调整系统定时为提前该积值个釆样点来截取 UE发送来的前导序 列的数据， 对所截取的前导序列的数据进行检测得到随机接入响应延迟信息 值， 并将该随机接入响应延迟信息值发送给该 UE; The NodeB adjusts the system according to the product of the random access preamble fault tolerance parameter and the access detection precision value of the NodeB to adjust the system timing to advance the data of the preamble sequence sent by the UE, and the intercepted The data of the preamble sequence is detected to obtain a random access response delay information value, and the random access response delay information value is sent to the UE;
UE接收到随机接入响应延迟信息值后， 将该值与随机接入前导容错参 数进行比较， 根据比较结果进行时序调整。 After receiving the random access response delay information value, the UE compares the value with the random access preamble fault tolerance parameter, and performs timing adjustment according to the comparison result.
6、 如权利要求 5所述的方法， 其中， UE根据随机接入响应延迟信息值 与随机接入前导容错参数进行比较的结果进行时序调整的步骤包括： 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (TA - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble _ offset _ )个釆样点； 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； 其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 The method according to claim 5, wherein the step of performing timing adjustment by the UE according to the result of comparing the random access response delay information value with the random access preamble fault tolerance parameter comprises: when the comparison result is T A > preamble offset The UE advances its own timing into the detection precision value* (T A - preamble offset) samples; when the comparison result is T A < preamble offset, the UE lags its own timing into the detection precision value* (preamble) _ offset _ ) a sample point; when the comparison result is = preamble _ offset, the timing of the UE and the NodeB are already aligned, and no timing adjustment is performed; Wherein, preamble _ offset parameter fault tolerant random access preamble, T A random access response delay information value.
7、 如权利要求 5或 6所述的方法， 其中： 所述 NodeB设置的随机接入前导容错参数为可满足所有类型 UE的随机 接入前导容错参数。 The method according to claim 5 or 6, wherein: the random access preamble fault tolerance parameter set by the NodeB is a random access preamble fault tolerance parameter that satisfies all types of UEs.
8、 一种基站（NodeB ) ， 包括广播模块和检测模块， 所述广播模块设置成： 设置终端（UE )的随机接入前导容错参数， 将其 添加进 NodeB系统广播消息中， 然后广播该系统广播消息； 所述检测模块设置成： 接收 UE发送来的前导序列， 定时截取该前导序 列的数据， 对所截取的数据进行检测， 得到随机接入响应延迟信息值， 并将 其发送给 UE。 A base station (NodeB), comprising a broadcast module and a detection module, wherein the broadcast module is configured to: set a random access preamble fault tolerance parameter of the terminal (UE), add it to a NodeB system broadcast message, and then broadcast the system. The detecting module is configured to: receive a preamble sequence sent by the UE, periodically intercept the data of the preamble sequence, detect the intercepted data, obtain a random access response delay information value, and send the data to the UE.
9、 如权利要求 8所述的 NodeB, 其中： 所述检测模块还设置成：计算该随机接入前导容错参数与 NodeB的接入 检测精度值之积， 根据得到的积值调整系统定时为提前该积值个釆样点来截 取 UE发送来的前导序列数据， 对所截取的前导序列数据进行检测得到随机 接入响应延迟信息值。 The NodeB according to claim 8, wherein: the detecting module is further configured to: calculate a product of the random access preamble fault tolerance parameter and an access detection precision value of the NodeB, and adjust the system timing according to the obtained product value. The product value is used to intercept the preamble sequence data sent by the UE, and the intercepted preamble sequence data is detected to obtain a random access response delay information value.
10、 如权利要求 8所述的 NodeB, 其中： 所述广播模块还设置成： 将随机接入前导容错参数设置为可满足所有类 型 UE的随机接入前导容错参数。 10. The NodeB of claim 8, wherein: the broadcast module is further configured to: set the random access preamble fault tolerance parameter to a random access preamble fault tolerance parameter that satisfies all types of UEs.
11、 一种终端 （UE ) ， 包括前导序列生成模块和时序调整模块， 所述前导序列生成模块设置成： 接收到基站 （NodeB )发送的系统广播 消息后， 根据该系统广播消息中携带的当前小区的参数配置生成前导序列， 将前导序列发送给该 NodeB； 所述时序调整模块设置成：在接收到该 NodeB发送的随机接入响应延迟 信息值后， 将随机接入响应延迟信息值与随机接入前导容错参数进行比较， 根据比较结果进行时序调整。 A terminal (UE), comprising a preamble sequence generation module and a timing adjustment module, wherein the preamble sequence generation module is configured to: after receiving a system broadcast message sent by a base station (NodeB), according to a current carried in the system broadcast message The parameter configuration of the cell generates a preamble sequence, and sends the preamble sequence to the NodeB. The timing adjustment module is configured to: after receiving the random access response delay information value sent by the NodeB, the random access response delay information value and the random The access preamble fault tolerance parameters are compared, and the timing adjustment is performed according to the comparison result.
12、 如权利要求 11所述的 UE, 其中： 所述前导序列生成模块还设置成： 根据该系统广播消息中携带的当前小 区的参数配置生成前导序列后， 计算该系统广播消息中携带的随机接入前导 容错参数与 NodeB的接入检测精度值之积，根据得到的积值将生成的前导序 列最后的该积值个釆样点作为尾序列， 将该尾序列搬移至前导序列的循环前 缀的前方， 然后将处理后的前导序列发送给该 NodeB。 The UE according to claim 11, wherein: the preamble sequence generating module is further configured to: after generating a preamble sequence according to a parameter configuration of a current cell carried in the system broadcast message, calculate a random carried in the system broadcast message The product of the access preamble fault tolerance parameter and the access detection precision value of the NodeB, and the last product value of the generated preamble sequence is used as the tail sequence according to the obtained product value, and the tail sequence is moved to the cyclic prefix of the preamble sequence. In front of it, the processed preamble sequence is then sent to the NodeB.
13、 如权利要求 11或 12所述的 UE, 其中： 所述时序调整模块还设置成： 根据随机接入响应延迟信息值与随机接入 前导容错参数进行比较的结果进行时序调整时， 当比较结果为 TA > preamble offset时， UE将自身的时序提前接入检测精 度值 * (TA - preamble offset)个釆样点； 当比较结果为 TA < preamble offset时， UE将自身的时序滞后接入检测精度 值 * (preamble _ offset _ )个釆样点； 当比较结果为 = preamble _ offset时， UE与 NodeB的时序已经对齐， 不 进行时序调整； 其中， preamble _ offset为随机接入前导容错参数， TA为随机接入响应延迟 信息值。 The UE according to claim 11 or 12, wherein: the timing adjustment module is further configured to: when timing adjustment is performed according to a result of comparing a random access response delay information value with a random access preamble fault tolerance parameter, when comparing When the result is T A > preamble offset, the UE advances its own timing into the detection precision value * (T A - preamble offset) samples; when the comparison result is T A < preamble offset, the UE lags its own timing. The access detection precision value * (preamble _ offset _ ) is sampled; when the comparison result is = preamble _ offset, the timing of the UE and the NodeB are aligned, and timing adjustment is not performed; wherein preamble_offset is a random access preamble The fault tolerance parameter, T A is the random access response delay information value.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1466285A (en) * 2002-06-06 2004-01-07 华为技术有限公司 Method for ralizing synchronization in TDD radio communication system
US20060126570A1 (en) * 2004-12-13 2006-06-15 Jung-Im Kim Random access apparatus and method
CN101198151A (en) * 2006-12-04 2008-06-11 华为技术有限公司 Random access method and mobile station

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1466285A (en) * 2002-06-06 2004-01-07 华为技术有限公司 Method for ralizing synchronization in TDD radio communication system
US20060126570A1 (en) * 2004-12-13 2006-06-15 Jung-Im Kim Random access apparatus and method
CN101198151A (en) * 2006-12-04 2008-06-11 华为技术有限公司 Random access method and mobile station

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