WO2012162984A1 - 一种降低随机接入检测总消耗的方法及装置 - Google Patents

一种降低随机接入检测总消耗的方法及装置 Download PDF

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Publication number
WO2012162984A1
WO2012162984A1 PCT/CN2011/079934 CN2011079934W WO2012162984A1 WO 2012162984 A1 WO2012162984 A1 WO 2012162984A1 CN 2011079934 W CN2011079934 W CN 2011079934W WO 2012162984 A1 WO2012162984 A1 WO 2012162984A1
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Prior art keywords
random access
symbol time
current symbol
allocated
signal
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PCT/CN2011/079934
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English (en)
French (fr)
Inventor
张运玑
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201180001799.0A priority Critical patent/CN103120013B/zh
Priority to PCT/CN2011/079934 priority patent/WO2012162984A1/zh
Publication of WO2012162984A1 publication Critical patent/WO2012162984A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present invention relate to the field of wireless mobile communications, and in particular, to a method and apparatus for reducing the total consumption of random access detection.
  • the RM Radio Resource Management
  • the RM allocates the air interface resources of the base station, and allocates a random access channel for transmitting the access data sent by the user terminal during random access, and is The accessed user terminal allocates a channel for transmitting service data. If a random access channel is allocated in the base station, the base station performs random access detection on the signal in the random access channel in real time. The inventor found that, because the access of the user terminal is random, there is a case where there is no access signal sent by the user terminal in the random access channel, so that the random access detection performed by the base station is only for the random access channel.
  • the noise signal at the same time, because the operation of random access detection is more complicated and occupies a large amount of computing resources, the random access detection of the noise signal will waste computing resources, and the detection of the noise signal is easy to generate virtual detection, resulting in The performance of the system is degraded.
  • the embodiment of the invention provides a method and a device for reducing the total consumption of random access detection, which is used by the base station to determine whether to perform random access detection on a signal in a random access channel, which can effectively reduce the base for random access detection.
  • the method for reducing the total consumption of the random access detection in the embodiment of the present invention includes: if the base station has allocated a random access channel in the current symbol time, and the subchannel for the user terminal uploading the service data is not allocated, acquiring the The total power of the received signal in the current symbol time; when the value of the total power is less than the preset power value, random access detection is not performed on the signal in the random access channel in the current symbol time.
  • the apparatus for reducing the total consumption of the random access detection in the embodiment of the present invention includes: allocating a subchannel for the user terminal to upload the service data, and acquiring the total function of the signal received in the current symbol time And a processing module, configured to: when the value of the total power is less than a preset power value, perform random access detection on the signal in the random access channel in the current symbol time.
  • the embodiments of the present invention have the following advantages:
  • the base station In the current symbol time, if the base station has allocated a random access channel and does not allocate a subchannel for the user terminal to upload service data, it is determined whether random access is required according to the total power of the received signal in the symbol time. Detection, when the value of the total power is less than the preset power value, random access detection is not performed on the signal in the random access channel, which can effectively prevent the base station from performing random access detection on the noise signal, thereby reducing random access. Detecting the total amount of computation and the resources used, reducing the total consumption, and at the same time, effectively avoiding false detection.
  • FIG. 1 is a schematic diagram of a method for reducing total consumption of random access detection according to an embodiment of the present invention
  • FIG. 2 is another schematic diagram of a method for reducing total consumption of random access detection according to an embodiment of the present invention
  • FIG. 4 is another schematic diagram of an apparatus for reducing the total consumption of random access detection in an embodiment of the present invention.
  • the embodiments of the present invention provide a method and a device for reducing the total consumption of random access detection, which are used to determine whether a random access detection is required for a signal in a random access channel during a current symbol time, which can effectively avoid
  • the calculation amount generated by the random access detection of the noise signal and the occupied computing resources reduce the total consumption of the random access detection, and at the same time, the virtual detection can be effectively avoided.
  • FIG. 1 is a method for reducing the total consumption of random access detection according to an embodiment of the present invention, including:
  • the base station has allocated a random access channel in the current symbol time, and does not allocate a subchannel for the user terminal to upload the service data, obtain the total power of the received signal in the current symbol time;
  • the communication between the user terminal and the base station can be divided into two phases, a random access phase and a traffic communication phase.
  • the random access phase the user terminal transmits the access signal by using the random access channel allocated by the base station.
  • the communication phase the user terminal uses the uplink subchannel allocated by the base station to transmit the service data.
  • the base station performs channel allocation.
  • the symbol time is the channel allocation minimum time unit.
  • the base station allocates channels in units of symbol time Resources, and the communication between the user terminal and the base station is also performed in units of symbol time.
  • the OFDM system can broadcast or control messages in the downlink.
  • a time-frequency two-dimensional resource block is defined for each user end of the service data transmission to allocate symbol time and sub-channel resources used by each user terminal, and each user terminal will also use the system-allocated in the allocated symbol time.
  • the subchannel resource transmits service data.
  • the system when the system allocates used symbol resources and subchannel resources to the user terminal, the system also allocates usable symbol time and random access channel for the user terminal that needs to access the network, so that the user terminal can be allocated.
  • the access time is transmitted by using the random access channel corresponding to the symbol time in the symbol time.
  • the base station acquires the total signal received in the symbol time.
  • the received signal refers to the general name of the signal in the random access channel and the signal in the subchannel in which the user terminal uploads the service data during the symbol time.
  • the base station performs automatic gain control on the received signal in the time domain or the frequency domain.
  • the base station will time for each symbol. Up, the signal transmitted in the uplink channel performs power statistics, and obtains the total power of the received signal, because the automatic gain control process is a process performed after the base station receives the signal, and whether or not it is required in the random access channel
  • the signal is subjected to random access detection, and the base station will perform the process. Therefore, the total power obtained in the automatic gain control process is used to determine whether random access detection is required for the signal in the random access channel, and the operation of the system is not increased. Volume and occupy additional resources.
  • the base station when the value of the total power obtained is less than the preset power value, the base station will not perform random access detection on the signal in the random access channel in the current current symbol time.
  • the value of the total power of the received signal that is calculated by the base station is too small, and therefore, according to the received signal.
  • the value of the total power value determines whether there is an access signal in the random access channel.
  • the base station will not perform random access detection on the signal in the random access channel, which can be effective. Save computing resources and avoid virtual detection.
  • the operator may set a power value that is compared with the total power of the received signal, or the base station flexibly sets the preset power value according to actual conditions. In actual applications, the specific setting of the power value The method can be determined according to the actual situation, and is not limited herein.
  • whether the random access detection of the signals in the random access channel is performed according to the allocation of the hollow port resources of the base station and the total power of the received signals in the current symbol time can effectively save Computing resources to avoid waste of resources and virtual detection.
  • FIG. 2 is an embodiment of a method for reducing total consumption of random access detection according to an embodiment of the present invention, including:
  • the base station acquires an allocation of air interface resources in a current symbol time.
  • the base station acquires the allocation of the air interface resources in the current symbol time, where the allocation of the air interface resources includes at least the random access channel allocated by the base station for transmitting the access data in the current symbol time. And whether a subchannel for the user terminal to upload service data has been allocated.
  • the base station acquires the received data in the process of performing automatic gain control on the received signal.
  • the total power of the signal
  • the base station determines, according to the obtained air interface resource allocation situation, if the base station has allocated a random access channel in the current symbol time, and does not allocate a subchannel for the user terminal to upload service data, the base station The total power of the received signal will be obtained during the automatic gain control of the received signal.
  • the automatic gain control may be time domain automatic gain control or frequency domain automatic gain control.
  • the base station determines whether the value of the total power is less than the preset power value, and if so, step 204 is performed, and if not, step 205 is performed;
  • the base station after obtaining the total power of the received signal in the current symbol time, the base station determines whether the value of the total power is less than a preset power value, and the base station determines, according to the determination result, whether the random access is performed.
  • the signals in the channel are subjected to random access detection.
  • the base station does not perform random access detection on the signal in the random access channel in the current symbol time. In the embodiment of the present invention, when the value of the total power is less than the preset power value, the base station does not match the current symbol. Random access detection is performed on the signal in the random access channel during the time.
  • the base station performs random access detection on the signal in the random access channel in the current symbol time.
  • the base station when the value of the total power is greater than or equal to the preset power value, the base station performs random access detection on the signal in the random access channel in the symbol time.
  • the base station if the base station has allocated a random access channel, and the sub-channel for transmitting the service data by the user user terminal is allocated, the base station will also perform random access on the signal in the random access channel. Detection.
  • whether to perform random access detection on a signal in a random access channel according to an allocation of air interface resources of the base station and a total power of the received signal when the base station has been allocated in the current symbol time
  • the base station will not perform the signal in the random access channel. Random access detection can effectively save computational and computational resources and avoid virtual detection.
  • the method for reducing the total consumption of random access detection described in FIG. 1 and FIG. 2 may be specifically performed by a baseband processing unit in a base station, or by a newly added processing unit in the base station.
  • an embodiment of an apparatus for reducing total consumption of random access detection includes:
  • the first obtained module 301 is configured to: if the base station has allocated a random access channel in the current symbol time, and does not allocate a subchannel for the user terminal to upload the service data, acquire the signal received in the current symbol time.
  • the processing module 302 is configured to perform random access detection on the signal in the random access channel in the current symbol time when the value of the total power is less than the preset power value.
  • the first obtaining module 301 will acquire the current symbol time.
  • whether the random access detection of the signal in the random access channel needs to be performed is determined according to the usage of the uplink channel of the user terminal and the total power of the signal received by the base station according to the current symbol time. It avoids a large number of operations and a large amount of computing resources for random access detection of noise signals, reduces the total consumption of random access detection, and saves resources.
  • FIG. 4 is another embodiment of the device for reducing the total consumption of random access detection according to an embodiment of the present invention, including:
  • the first obtaining module 301, the processing module 302 in the embodiment shown in FIG. 3 is similar to the content described in the embodiment shown in FIG. 3, and details are not described herein again.
  • the device also includes:
  • the second obtaining unit 401 is configured to acquire an allocation of the air interface resource in the current symbol time, where the allocation of the air interface resource includes at least a random access channel allocated by the base station for transmitting the access data, and Whether the subchannel for the user terminal to upload the service data has been allocated; the determining unit 402 is configured to determine whether the value of the total power is less than a preset power value.
  • the processing unit 302 is further configured to: when a random access channel has been allocated in the base station, and the subchannel for the user terminal to upload the service data has been allocated, the random access channel in the current symbol time.
  • the signal in the random access detection is used, and when the value of the total power is greater than or equal to the preset power value, random access detection is performed on the signal in the random access channel in the current symbol time.
  • the second obtaining unit 401 acquires the allocation of the air interface resources in one symbol.
  • the base station has allocated a random access channel, and the user equipment for uploading the service data is not allocated.
  • the first obtaining unit 301 acquires the total power of the signal received in the current symbol time
  • the determining unit 402 determines the value of the total power of the received signal, and determines whether the value of the total power is less than the preset power. The value, if yes, the processing unit 302 will not perform random access detection on the signal in the random access channel in the current symbol time. If not, the processing unit 302 will randomly connect the signals in the random access channel in the current symbol time. Into the test.
  • the apparatus for reducing the total consumption of random access detection shown in FIG. 3 and FIG. 4 may be an existing component in the station, for example, a baseband processing unit in the base station, or a newly added component, for example, capable of executing
  • the newly added processing unit of the method shown in FIG. 1 and FIG. 2 can be determined as needed in practical applications, and is not limited herein.
  • whether to perform random access detection on a signal in a random access channel according to an allocation of air interface resources of the base station and a total power of the received signal when the base station has been allocated in the current symbol time
  • the base station will not perform the signal in the random access channel. Random access detection can effectively save computational and computational resources and avoid virtual detection.
  • the medium can be a read only memory, a magnetic disk or a compact disk or the like.

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Abstract

一种降低随机接入检测总消耗的方法及装置，其中，该方法包括：若在当前符号时间内，基站已分配随机接入信道，且未分配用于用户终端上传业务数据的子信道，则获取所述当前符号时间内接收到的信号的总功率；当所述总功率的值小于预置的功率值时，不对所述当前符号时间内所述随机接入信道中的信号进行随机接入检测。该方法能够有效的避免基站对噪声信号进行随机接入检测，减小进行随机接入检测总得运算量及占用的资源，同时，能够有效避免虚检测。

Description

一种降低随机接入检测总消耗的方法及装置 技术领域
本发明实施例涉及无线移动通信领域，尤其涉及一种降低随机接入检测总 消耗的方法及装置。
背景技术 在基站侧， 射频空口资源管理（ R M, Radio Resource Management )对基 站的空口资源进行分配，将分配用于传输用户终端随机接入时发送的接入数据 的随机接入信道，及为已接入的用户终端分配传输业务数据的信道。若基站中 分配了随机接入信道，基站将实时的对随机接入信道中的信号进行随机接入检 测。 发明人在研究中发现， 由于用户终端的接入是随机的，会出现随机接入信 道中没有用户终端发送的接入信号的情况，使得基站进行的随机接入检测只是 针对随机接入信道中的噪声信号， 同时， 由于随机接入检测的运算较为复杂， 占据大量的运算资源， 因此对噪声信号的随机接入检测将浪费运算资源，且由 于对噪声信号进行检测， 易产生虚检测， 导致系统的性能下降。
发明内容
本发明实施例提供了一种降低随机接入检测总消耗的方法和装置，用于基 站判断是否对随机接入信道中的信号进行随机接入检测，能够有效的降低基进 行随机接入检测的总体运算量及占用的资源， 同时， 避免了虚检测， 提高系统 的性能。
本发明实施例中的降低随机接入检测总消耗的方法包括：若在当前符号时 间内，基站已分配随机接入信道，且未分配用于用户终端上传业务数据的子信 道， 则获取所述当前符号时间内接收到的信号的总功率； 当所述总功率的值小 于预置的功率值时，不对所述当前符号时间内所述随机接入信道中的信号进行 随机接入检测。
本发明实施例中的降低随机接入检测总消耗的装置包括：分配用于用户终 端上传业务数据的子信道， 则获取所述当前符号时间内接收到的信号的总功 率； 处理模块， 用于当所述总功率的值小于预置的功率值时， 不对所述当前符 号时间内所述随机接入信道中的信号进行随机接入检测。
从以上技术方案可以看出， 本发明实施例具有以下优点：
在当前符号时间内， 若基站已经分配随机接入信道，且未分配用于用户终 端上传业务数据的子信道时，则根据该符号时间内接收到的信号的总功率判断 是否需要进行随机接入检测， 当该总功率的值小于预置的功率值时， 不对随机 接入信道中的信号进行随机接入检测，能够有效的避免基站对噪声信号进行随 机接入检测， 减少了进行随机接入检测总的运算量及占用的资源， 减少了总消 耗， 同时， 能够有效的避免虚检测。
附图说明
图 1为本发明实施例中降低随机接入检测总消耗的方法的一个示意图； 图 2为本发明实施例中降低随机接入检测总消耗的方法的另一个示意图； 图 3为本发明实施例中降低随机接入检测总消耗的装置的一个示意图； 图 4为本发明实施例中降低随机接入检测总消耗的装置的另一个示意图。
具体实施方式
本发明实施例提供了一种降低随机接入检测总消耗的方法及装置，用于在 当前符号时间内，基站判断是否需要对随机接入信道中的信号进行随机接入检 测，能够有效的避免对噪声信号进行随机接入检测产生的运算量及占用的运算 资源， 减少进行随机接入检测的总消耗， 同时， 能够有效的避免虚检测。
为了更好的理解本发明的技术方案， 请参阅图 1 , 为本发明实施例中一种 降低随机接入检测总消耗的方法， 包括：
101、 若在当前符号时间内， 基站已分配随机接入信道， 且未分配用于用 户终端上传业务数据的子信道时，则获取当前符号时间内接收到的信号的总功 率；
用户终端与基站之间的通信可分为两个阶段，分别是随机接入阶段和话务 通信阶段，在随机接入阶段， 用户终端使用基站分配的随机接入信道传送接入 信号， 在话务通信阶段， 用户终端使用基站分配的上行子信道传输业务数据， 为了实现用户终端与基站之间的通信过程，基站将进行信道分配，在本发明实 施例中，符号时间是信道分配最小时间单元，基站以符号时间为单位分配信道 资源，且用户终端与基站之间的通信也是以符号时间为单位来进行的， 以正交 频分复用 ( OFDM, Orthogonal Frequency Division Multiplexing ) 系统为例： OFDM 系统可通过在下行广播或控制消息中为每个有业务数据传输的用户端 定义时间一频率二维资源块来分配每个用户终端使用的符号时间及子信道资 源，每个用户终端也将在分配的符号时间内使用系统分配的子信道资源传输业 务数据。且在本发明实施例中， 系统在给用户终端分配使用的符号资源及子信 道资源时， 也将为需要入网的用户终端分配可使用的符号时间及随机接入信 道，使得用户终端可在分配的符号时间内利用该符号时间对应的随机接入信道 传输接入信号。
在本发明实施例中， 若在当前符号时间内， 基站已分配随机接入信道， 且 未分配用于用户终端上传业务数据的子信道时，基站将获取该符号时间内接收 到的信号的总功率，接收到的信号是指在该符号时间内， 随机接入信道中的信 号及各用户终端上传业务数据的子信道中的信号的总称。
需要说明的是， 在基站侧， 基站为了保持一定的处理信噪比， 将对接收到 的信号进行时域或频域的自动增益控制，在自动增益控制过程中，基站将对每 一个符号时间上，上行信道中所传输的信号进行功率统计， 获得接收到的信号 的总功率， 由于该自动增益控制过程是基站接收到信号之后执行的一个过程， 且无论是否需要对随机接入信道中的信号进行随机接入检测，基站都将会执行 该过程， 因此， 利用自动增益控制过程中得到的总功率判断是否需要对随机接 入信道中的信号进行随机接入检测， 不会增加系统的运算量及占用额外资源。
102、 当总功率的值小于预置的功率值时， 不对当前当前符号时间内随机 接入信道中的信号进行随机接入检测。
在本发明实施例中， 当获取到的总功率的值小于预置的功率值时，基站将 不对当前当前符号时间内随机接入信道中的信号进行随机接入检测。
在本发明实施例中，当随机接入信道中没有传输用户终端发送的接入信号 时， 基站统计得到的接收到的信号的总功率的值将偏小， 因此， 可根据接收到 的信号的总功率的值的大小判断随机接入信道中是否有接入信号，当总功率的 值小于预置的功率值时， 基站将不对随机接入信道中的信号进行随机接入检 测， 能够有效的节约运算资源， 避免虚检测。 在本发明实施例中，操作人员可设置与接收到的信号的总功率进行比较的 功率值， 或者由基站根据实际情况灵活设置该预置的功率值， 在实际应用中， 功率值的具体设置方法可根据实际情况而定， 此处不做限定。
在本发明实时例中，在当前符号时间内，通过根据基站中空口资源的分配 情况及接收到的信号的总功率确定是否对随机接入信道中的信号进行随机接 入检测， 能够有效的节约运算资源， 避免资源浪费及虚检测的产生。
为了更好的理解本发明的技术方案， 请参阅图 2, 为本发明实施例中， 一 种降低随机接入检测总消耗的方法的实施例， 包括：
201、 基站获取当前符号时间内空口资源的分配情况；
在本发明实施例中，基站将获取当前符号时间内空口资源的分配情况， 其 中， 空口资源的分配情况至少包括在当前符号时间内，基站是否已分配用于传 输接入数据的随机接入信道，及是否已分配用于用户终端上传业务数据的子信 道。
202、 若在当前符号时间内， 基站已分配随机接入信道， 且未分配用于用 户终端业务数据的信道，基站获取在对接收到的信号进行自动增益控制的过程 中， 统计得到的接收到的信号的总功率；
在本发明实施例中，基站将根据获取到的空口资源分配情况进行判断， 若 在当前符号时间内，基站已分配随机接入信道，且未分配用于用户终端上传业 务数据的子信道， 基站将获取在对接收到的信号进行自动增益控制的过程中 , 统计得到的接收到的信号的总功率。
在本发明实施例中， 自动增益控制可以是时域自动增益控制，也可以是频 域自动增益控制。
203、基站判断总功率的值是否小于预置的功率值，若是，则执行步骤 204, 若否， 则执行步骤 205;
在本发明实施例中，基站获得该当前符号时间内，接收到的信号的总功率 之后，将判断总功率的值是否小于预置的功率值，且基站将根据判断结果确定 是否对随机接入信道中的信号进行随机接入检测。
204、基站不对当前符号时间内随机接入信道中的信号进行随机接入检测； 在本发明实施例中， 当总功率的值小于预置的功率值时，基站不对当前符 号时间内随机接入信道中的信号进行随机接入检测。
205、 基站对当前符号时间内随机接入信道中的信号进行随机接入检测。 在本发明实施例中， 当总功率的值大于或等于预置的功率值时，基站将对 该符号时间内随机接入信道中的信号进行随机接入检测。
需要说明的是， 在本发明实施例中， 若基站已分配随机接入信道， 且已分 配用户用户终端上传业务数据的子信道，基站也将对该随机接入信道中的信号 进行随机接入检测。
在本发明实施例中，通过根据基站的空口资源的分配情况及接收到的信号 的总功率确定是否对随机接入信道中的信号进行随机接入检测，在当前符号时 间内， 当基站已分配随机接入信道，且未分配用于用户终端上传业务数据的子 信道，且基站接收到的信号的总功率的值小于预置的功率值时，基站将不对该 随机接入信道中的信号进行随机接入检测， 能够有效的节约运算量及运算资 源， 避免虚检测。
需要说明的是，在本发明实施例中， 图 1及图 2所述的降低随机接入检测 总消耗的方法具体可由基站中的基带处理单元执行，或者由基站中新增加的处 理单元执行。
图 1及图 2所示的实施例描述了降低随机接入检测总消耗的方法，下面将 详细介绍可用于执行上述方法的装置的实施例。
请参阅图 3 , 为本发明实施例中降低随机接入检测总消耗的装置的实施 例， 包括：
第一获耳 莫块 301 ,用于若在当前符号时间内，基站已分配随机接入信道， 且未分配用于用户终端上传业务数据的子信道，则获取当前符号时间内接收到 的信号的总功率；
处理模块 302, 用于当总功率的值小于预置的功率值时， 不对当前符号时 间内随机接入信道中的信号进行随机接入检测。
在本发明实施例中， 若在当前符号时间内， 基站已分配随机接入信道， 且 未分配用于用户终端上传业务数据的子信道，则第一获取模块 301将获取当前 符号时间内接收到的信号的总功率， 并当该总功率的值小于预置的功率值时， 处理模块 302将不对当前符号时间内随机接入信道中的信号的进行随机接入 检测。
在本发明实施例中，通过根据当前符号时间内， 用户终端的上行信道的使 用情况及基站接收到的信号的总功率确定是否需要对随机接入信道中的信号 进行随机接入检测，能够有效的避免对噪声信号进行随机接入检测而进行的大 量运算及占用的大量运算资源， 减少随机接入检测的总消耗， 节约资源。
为了更好的理解本发明中的装置， 请参阅图 4, 为本发明实施例中降低随 机接入检测总消耗的装置的另一实施例， 包括：
如图 3所示实施例中的第一获取模块 301 , 处理模块 302, 且与图 3所示 的实施例描述的内容相似， 此处不再赘述。
此外， 装置还包括：
第二获取单元 401 , 用于获取当前符号时间内空口资源的分配情况， 该空 口资源的分配情况至少包括在当前符号时间内，基站是否已分配用于传输接入 数据的随机接入信道， 及是否已分配用于用户终端上传业务数据的子信道； 判断单元 402, 用于判断总功率的值是否小于预置的功率值。
优选的，在本发明实施例中， 处理单元 302还用于当基站中已分配随机接 入信道，且已分配用于用户终端上传业务数据的子信道时，对当前符号时间内 随机接入信道中的信号进行随机接入检测，及用于当总功率的值大于或等于预 置的功率值时， 对当前符号时间内随机接入信道中的信号进行随机接入检测。
在本发明实施例中，第二获取单元 401将获取一个符号内空口资源的分配 情况， 当在当前符号时间内， 基站已分配随机接入信道， 且未分配用于用户终 端上传业务数据的子信道时，第一获取单元 301获取当前符号时间内接收到的 信号的总功率， 判断单元 402将对该接收到的信号的总功率的值进行判断， 判 断总功率的值是否小于预置的功率值， 若是， 处理单元 302将不对该当前符号 时间内随机接入信道中的信号进行随机接入检测， 若否，处理单元 302将对该 当前符号时间内随机接入信道中的信号进行随机接入检测。
需要说明的是，图 3及图 4所示的降低随机接入检测总消耗的装置可 站中已有的部件，例如，基站中的基带处理单元，或者是新增加的部件，例如， 能够执行图 1及图 2所示的方法的新增加的处理单元，在实际应用中， 可根据 需要而定， 此处不 ^故限定。 在本发明实施例中，通过根据基站的空口资源的分配情况及接收到的信号 的总功率确定是否对随机接入信道中的信号进行随机接入检测，在当前符号时 间内， 当基站已分配随机接入信道，且未分配用于用户终端上传业务数据的子 信道，且基站接收到的信号的总功率的值小于预置的功率值时，基站将不对该 随机接入信道中的信号进行随机接入检测， 能够有效的节约运算量及运算资 源， 避免虚检测。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可 读存储介质中， 上述提到的存储介质可以是只读存储器， 磁盘或光盘等。
以上对本发明所提供的一种降低随机接入检测总消耗的方法及装置，进行 了详细介绍， 对于本领域的一般技术人员， 依据本发明实施例的思想， 在具体 实施方式及应用范围上均会有改变之处， 综上所述， 本说明书内容不应理解为 对本发明的限制。

Claims

权 利 要 求
1、 一种降低随机接入检测总消耗的方法， 其特征在于， 包括：
若在当前符号时间内，基站已分配随机接入信道，且未分配用于用户终端 上传业务数据的子信道， 则获取所述当前符号时间内接收到的信号的总功率； 当所述总功率的值小于预置的功率值时，不对所述当前符号时间内所述随 机接入信道中的信号进行随机接入检测。
2、 根据权利要求 1所述的方法， 其特征在于， 所述若在当前符号时间内， 基站已分配随机接入信道， 且未分配用于用户终端上传业务数据的子信道时 , 获取所述当前符号时间内接收到的信号的总功率的步骤之前还包括：
获取所述当前符号时间内空口资源的分配情况，所述空口资源的分配情况 至少包括在所述当前符号时间内，基站是否已分配用于传输接入数据的随机接 入信道， 及是否已分配用于用户终端上传业务数据的子信道。
3、 根据权利要求 1或 2所述的方法， 其特征在于， 所述获取所述当前符 号时间内接收到的信号的总功率包括：
获取在对所述接收到的信号进行自动增益控制的过程中，统计得到的所述 接收到的信号的总功率。
4、 根据权利要求 1至 3任一项所述的方法， 其特征在于， 所述当所述总 功率的值小于预置的功率值时，不对所述当前符号时间内所述随机接入信道中 的信号进行随机接入检测的过程， 具体包括：
判断所述总功率的值是否小于预置的功率值；
若是，则不对所述当前符号时间内所述随机接入信道中的信号进行随机接 入 4佥测；
若否，则对所述当前符号时间内所述随机接入信道中的信号进行随机接入 检测。
5、 根据权利要求 1至 4任一项所述的方法， 其特征在于， 所述方法还包 括：
当在所述当前符号时间内，基站中已分配所述随机接入信道，且已分配所 述用于传输业务数据的信道时，则对所述当前当前符号时间内所述随机接入信 道中的信号进行随机接入检测。
6、 一种降低随机接入检测总消耗的装置， 其特征在于， 包括： 第一获耳 莫块， 用于若在当前符号时间内， 基站已分配随机接入信道， 且 未分配用于用户终端上传业务数据的子信道，则获取所述当前符号时间内接收 到的信号的总功率；
处理模块， 用于当所述总功率的值小于预置的功率值时， 不对所述当前符 号时间内所述随机接入信道中的信号进行随机接入检测。
7、 根据权利要求 6所述的装置， 其特征在于， 所述装置还包括： 第二获耳 莫块， 用于获取所述当前符号时间内空口资源的分配情况， 所述 空口资源的分配情况至少包括在当前符号时间内，基站是否已分配用于传输接 入数据的随机接入信道， 及是否已分配用于用户终端上传业务数据的子信道； 判断单元， 用于判断所述总功率的值是否小于预置的功率值。
8、 根据权利要求 6或 7所述的装置， 其特征在于， 所述处理模块还用于 当基站中已分配所述随机接入信道，且已分配所述用于用户终端上传业务数据 的子信道时，则对所述当前符号时间内所述随机接入信道中的信号进行随机接 入检测； 及用于当所述总功率的值大于或等于预置的功率值时， 则对所述当前 符号时间内所述随机接入信道中的信号进行随机接入检测。
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