WO2012083855A1 - 一种移动终端和上行增强随机接入信道接入的方法 - Google Patents

一种移动终端和上行增强随机接入信道接入的方法 Download PDF

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Publication number
WO2012083855A1
WO2012083855A1 PCT/CN2011/084378 CN2011084378W WO2012083855A1 WO 2012083855 A1 WO2012083855 A1 WO 2012083855A1 CN 2011084378 W CN2011084378 W CN 2011084378W WO 2012083855 A1 WO2012083855 A1 WO 2012083855A1
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Prior art keywords
data
logical channel
timer
module
access
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PCT/CN2011/084378
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English (en)
French (fr)
Inventor
刘宇
涂成林
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意法·爱立信半导体（北京）有限公司
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Priority to EP11850178.2A priority Critical patent/EP2658307A4/en
Priority to US13/993,367 priority patent/US9237586B2/en
Publication of WO2012083855A1 publication Critical patent/WO2012083855A1/zh

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1887—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0866—Non-scheduled access, e.g. ALOHA using a dedicated channel for access

Definitions

  • the present invention relates to the field of mobile communications, and in particular, to a method for accessing a mobile terminal and E-RUCCH. Background technique
  • the mobile communication technology is developed to the third generation (3G), and the high speed uplink packet access (HSUPA) technology provides the uplink direction, that is, the direction from the mobile terminal to the radio access network for the packet service.
  • HSUPA high speed uplink packet access
  • HSUPA technology the peak transmission rate of upstream users can be significantly improved compared to the second generation (2G).
  • HSUPA services are classified into scheduling services and non-scheduled services according to different scheduling modes.
  • the resources of the non-scheduled service are mainly used for data with high real-time requirements such as signaling between the transmission network and the terminal, and services with constant rate.
  • the scheduling service is performed by the Serving Radio Network Controller (SRNC) as the base station.
  • SRNC Serving Radio Network Controller
  • Node B allocates HSUPA resources (the service RNC is mainly for a specific terminal), and then the Node B allocates uplink resources to the terminal in the real-time data transmission process.
  • the Node B sends absolute authorization information to the terminal through an absolute grant channel (E-AGCH).
  • E-AGCH absolute grant channel
  • the authorization information on an E-AGCH is only used by one terminal at a time, and the duration of this authorization information is only one transmission interval.
  • the terminal when the terminal does not have the HSUPA resource (instead of the transmission of the calling service or the non-scheduled service), when the data needs to be uploaded, in order to realize the reasonable allocation of the wireless resources to the network,
  • the network needs to know the data transmission status of the terminal in real time. Therefore, the terminal needs to report the scheduling information (SI) to the Node B and request the authorization information to obtain the scheduling of the Node B.
  • SI scheduling information
  • the terminal side MAC layer notifies the physical layer to initiate an uplink enhanced random access channel (E-RUCCH) access; (2) the terminal is in the uplink peer time slot (UpPTS) Transmitting an uplink identical code (SYNC-UL) for the E-RUCCH procedure on the channel; (3) receiving the information on the fast physical access channel (FPACH) on the fixed frame; (4) the terminal is based on the FPACH
  • the received physical information, the E-RUCCH information is transmitted on the physical random access channel (PRACH), and the E-RUCCH information carries the SI; (5) the network is in the enhanced absolute grant channel according to the SI in the E-RUCCH information.
  • the terminal assigns authorization information, and the terminal completes the E-RUCCH access, and the normal HSUPA data transmission process can be started.
  • the terminal transmits uplink data on the enhanced physical uplink channel (E-PUCH) specified in the E-AGCH; (7) the terminal detects the E-PUCH on the enhanced hybrid automatic repeat indication channel (E-HICH) Whether the sent MAC-e PDU packet is correctly received by the network.
  • E-PUCH enhanced physical uplink channel specified in the E-AGCH
  • E-HICH enhanced hybrid automatic repeat indication channel
  • the terminal transmits the MAC-e PDU through the E-PUCH channel, and carries the SI, where the SI includes the number of the terminal buffer, the power headroom, and the path loss measurement information of the local cell and the neighboring cell.
  • the network side assigns a TTI authorization information to the terminal according to the status information carried in the SI.
  • the terminal will request the network to continue to assign authorization information in the data packet sent by each TTI, and the network will continue to assign authorization information to the terminal on the E-AGCH channel according to the SI.
  • the protocol In the process of HSUPA data transmission, in order to prevent the terminal from initiating some unnecessary E-RUCCH access, the protocol provides different protections for the following two situations:
  • the terminal may send authorization information to the terminal to send the cached data. If the network does not receive the authorization information until the T-WAIT times out, the terminal may initiate the E-RUCCH access to the network. Request authorization;
  • the network configures an optional extended estimation window for the terminal MAC layer (Extended Estimation Window): Using the extended estimation window, it can prevent users from triggering unnecessary E-RUCCH when there is a possible authorization available in the next short period of time. transmission. For example, in the case of hybrid automatic retransmission, whether the mobile terminal can obtain the authorization to transmit new data can be judged by viewing the extended estimation window.
  • the terminal since it is only an optional configuration, and the application of the extended estimation window increases the network processing load, from the current situation, no network equipment vendor will configure the terminal with an extended estimation window. Therefore, when the terminal has the authorization information in one frame on the terminal, the frame has no authorization information, and there is no cache data to be sent at present, when the cached data needs to be sent, the access request is sent through the E-RUCCH channel.
  • the network to request the network to assign authorization information.
  • the terminal In the case that the uplink transmission is not smooth, the terminal has data to be uploaded in a relatively short period of time after the data is sent, which will trigger the E-RUCCH access multiple times. Summary of the invention
  • E-RUCCH enhanced random access channel
  • Step 1 When the upload data authorization information expires, and the amount of buffered data in the logical channel of the mobile terminal is zero, the timer is started;
  • Step 2 Determine whether the timer expires. If the newly transmitted upload data authorization information is received before the timer expires, the timer is reset and the E-RUCCH access is initiated.
  • Step 3 If the current upload data authorization information is not received before the timer expires, reset the timer when the timer expires and determine whether there is cached data in the logical channel;
  • Step 4 Initiating the E-RUCCH access when the amount of data buffered in the logical channel exceeds a threshold of the logical channel buffer data.
  • the method further includes: determining whether an extended estimation window is configured or whether a resource continuous indication RDI is received;
  • the startup timer is started if the result of the determination is that the extended estimation window is not configured, or the resource persistent indication RDI is not received.
  • the timer is reset and the E-RUCCH access is initiated.
  • a threshold value of the buffered data volume of the logical channel is zero.
  • the threshold value of the cached data volume of the highest priority logical channel carrying the service data is zero, and the bearer service is The threshold value of the buffered data volume of the secondary priority logical channel of the data is greater than zero; or the threshold value of the cached data volume of the highest priority logical channel carrying the service data is greater than zero, and is smaller than the bearer service data.
  • An embodiment of the present invention further provides a mobile terminal, including an upload data authorization information receiving module,
  • E-RUCCH access modules timers, and:
  • a logical channel data buffering module configured to cache data to be uploaded in the logical channel of the mobile terminal
  • a timer starting module configured to: when it is determined that the authorization information of the upload data authorization information receiving module is not valid, and the amount of buffered data in the logical channel data buffer module is zero, notify the timer to start;
  • a timer resetting module configured to determine whether the timer expires, and when the timer is timed out before receiving the valid authorization information notification of the upload data authorization information receiving module, resetting the timer, and notifying the E-
  • the RUCCH access module initiates an E-RUCCH access; and is configured to reset the timer when the timer expires, and notify the cached data volume threshold module; the cached data volume threshold module, And storing the logical channel buffer data amount threshold table, and after receiving the notification of the timer reset module, determining whether the amount of data buffered in the logical channel data buffer module exceeds a logical channel buffer data amount gate
  • the corresponding threshold value in the limit table, and when the threshold is exceeded, the E-RUCCH access module is notified to initiate E-RUCCH access.
  • the mobile terminal further includes: an extended estimation window/resource persistent indication determining module, configured to determine whether an extended estimation window is configured or whether a resource persistent indication is received;
  • the timer starting module is specifically configured to: when it is determined that the upload data authorization information receiving module does not have the authorization information in the validity period, and the cached data amount in the logical channel data cache module is zero, notify the extended estimation window/resource persistent indication
  • the judging module notifies the timer to start when the judgment result of the extended estimation window/resource continuation indication judging module is that the extended estimation window is not configured or the resource continuation indication is not received.
  • the logical channel data buffer module is further used to: when carrying signaling logic When the amount of buffer signaling data in the channel is greater than zero, the timer reset module is notified;
  • the timer reset module is further configured to: when the notification that the signaling data amount is greater than zero is received before the timer expires, reset the timer, and notify the E-RUCCH access module to initiate E -RUCCH access.
  • the buffered data volume threshold of the logical channel carrying the signaling data is zero.
  • the threshold value of the cached data amount of the highest priority logical channel carrying the service data is Zero
  • the threshold value of the buffered data volume of the secondary priority logical channel carrying the service data is greater than zero
  • a threshold value of the cached data amount of the highest priority logical channel carrying the service data is greater than zero, and is smaller than a cache of the secondary priority logical channel carrying the service data.
  • the threshold for the amount of data is greater than zero, and is smaller than a cache of the secondary priority logical channel carrying the service data.
  • the E-RUCCH access timing of the mobile terminal is controlled by the custom timer, the logical channel priority, and the logical channel buffer data amount, so as to prevent the mobile terminal from initiating unnecessary frequent access, thereby saving network resources. And the consumption of mobile terminal power.
  • FIG. 1 is a flow chart showing the signaling of E-RUCCH access of a mobile terminal in the existing TD-SCDMA.
  • 2 is a flow chart showing an embodiment of a method of the present invention.
  • Figure 3 is a schematic illustration of an embodiment of a method of the present invention.
  • FIG. 4 is a block diagram showing an embodiment of an apparatus of the present invention. detailed description
  • the method for implementing uplink enhanced random access channel access of a mobile terminal includes:
  • Step 1 When the upload data authorization information expires, and the amount of data buffered in the logical channel of the mobile terminal When it is zero, the timer is started;
  • Step 2 Determine whether the timer expires. If the newly transmitted upload data authorization information is received before the timer expires, the timer is reset and the E-RUCCH access is initiated.
  • Step 3 If the current upload data authorization information is not received before the timer expires, reset the timer when the timer expires and determine whether there is cached data in the logical channel;
  • Step 4 Initiating the E-RUCCH access when the amount of data buffered in the logical channel exceeds a threshold of the logical channel buffer data.
  • Step S1 The terminal sends data according to the authorization information of the Node B. After the data of the last TTI applied by the latest E-AGCH authorization is sent, it is determined whether the buffer amount in the logical channel is 0. If the buffer volume is greater than 0, the terminal starts.
  • the timer T_WAIT which implements the scheme of controlling access by T_WAIT, waits for the authorization information that the network may assign to the terminal in the next time; if the buffer amount is equal to 0, the process proceeds to step S2.
  • Step S2 determining whether the network is configured with an extended estimation window for the terminal. If the network configures the extended estimation window for the terminal, it is determined whether the RDI is configured in the extended estimation window. If the previously configured RDI is included, the E- is not immediately initiated.
  • the RUCCH access uses an extended estimation window and RDI to control the E-RUCCH access timing.
  • the extended estimation window is typically in the order of milliseconds. If the configured extended estimation window is 5 TTIs in length, when the TTI is defined as 5 milliseconds, it is checked whether there is a pre-configured RDI authorization within the next 25 milliseconds. If the extended estimation window is configured but there is no RDI, or if the extended estimation window is not configured, then step S3 is entered.
  • Step S3 Start the terminal customized timer T_DELAY, and wait for the scheduling authorization information that the network may allocate.
  • the length of T_DELAY is preferably 2 to 5 TTIs, and it is recommended to set it to 5 TTIs.
  • the terminal stops the timer T_DELAY and performs HSUPA data transmission according to the authorization information. Otherwise, the timer 1_0£1 ⁇ does not time out. Then, it continues to wait for receiving the E-AGCH scheduling authorization information; after the timer expires, the process proceeds to step S4.
  • T_DELAY There are two main functions for setting T_DELAY: First, wait for the network to have scheduling resources allocated before T_DELAY expires, and avoid initiating invalid E-RUCCH access in advance; After the timeout expires, the device does not receive the authorization information from the network. It can also accumulate data on the terminal side and initiate E-RUCCH access at one time instead of initiating access once the cached data is available.
  • Step S4 After the timer T_DELAY times out, stop and reset the timer T_DELAY.
  • the terminal When the network initially establishes the HSUPA transmission, the terminal is configured with the number of logical channels for the transmission and the priority of each logical channel. There are up to 15 logical channels and 8 priority levels (0 to 7), of which 4 logical channels are used to carry signaling data, and the priorities of these channels are also different. In general, the priority of the logical channel carrying the signaling plane will be higher than the priority of the logical channel carrying the traffic data.
  • the MAC layer immediately initiates E-RUCCH access, which generally ensures timely transmission of high priority signaling data; if the highest priority logical channel is not buffered, The number of RLC PDUs of the logical channel buffer of other priority levels (collectively referred to as sub-priority) is greater than the threshold K, and the MAC layer also immediately initiates E-RUCCH access, otherwise it continues to wait for application layer data until these logics The access is initiated when the number of RLC PDUs in the channel buffer is greater than the threshold K. Alternatively, the priority between logical channels carrying signaling data is ignored. Once there is buffered data on the signaling channel, the MAC initiates E-RUCCH access to ensure timely upload of signaling data.
  • the E-RUCCH access timing is controlled from the logical channel priority and the buffered data amount, which can prevent the mobile terminal from frequently initiating E-RUCCH access, avoiding waste of network resources and waste of terminal power consumption.
  • the custom timer T_DELAY it is avoided that the terminal immediately initiates E-RUCCH access if there is data transmission in a short time after the data is sent.
  • the allocation strategy of some networks on the E-AGCH is The E-AGCH authorization is periodically rotated for multiple users in the current cell.
  • the advantage of the timer T_DELAY in this network is more obvious, because the terminal may receive the E-AGCH authorization of the network before the T_DELAY times out. And send data according to this authorization, to prevent the terminal from initiating invalid E-RUCCH access in advance.
  • the timer T_DELAY stops before the timeout or stops after the timeout. Only in the following case, the timer T_DELAY will be started again: the terminal starts the E-RUCCH access and starts transmitting data until the last time. After the data of the last TTI applied by the E-AGCH authorization is sent, the buffer amount in the logical channel is 0, and the network does not configure the extended estimation window and the RDI, that is, returns to step S3.
  • a better solution is to select different threshold values Ki according to the priority level, for example
  • the cache data threshold K1 of the logical channel with priority 1 (the highest priority is 0)
  • the cache data threshold for the logical channel with priority 2 is K2, and so on.
  • K1 is less than ⁇ 2, and the more the logical channel behind the priority, the more cached data it accumulates is allowed to initiate access. If there is no cached data on the channel with priority 0 and 1, or the amount of buffered data on the channel with priority 1 is lower than K1, if the number of PDUs buffered on the channel with priority 2 is greater than ⁇ 2, the mobile terminal only E-RUCCH access will be triggered. Naturally, only a small number of threshold gradients may be limited.
  • the threshold value of the buffered data of the logical channel having the priority of 1 to 3 is K1
  • the threshold of the buffered data of the logical channel having the lower priority is For ⁇ 2.
  • a more preferred solution is to use a buffered data threshold of zero for the signaling channel and a threshold for setting the threshold for the traffic channel.
  • the PDU When the number of buffers is less than the threshold, for example, only one RLC PDU, the PDU is likely to be a periodic state packet generated by the RLC layer on the terminal side. Of course, it is not necessary to specifically initiate E-RUCCH access for the status packet. Generally speaking, if the data of the application layer needs to be sent, the amount of data is relatively large, and multiple RLC PDUs are needed to accommodate, so this threshold can be set to control the access timing.
  • the present invention provides a more optimal solution:
  • step S3 specifically includes:
  • Step S31 If the network has E-AGCH scheduling authorization information allocated to the terminal before the timer T_DELAY times out, the terminal stops the timer T_DELAY, and performs HSUPA data transmission according to the authorization information. Otherwise, the timer T_DELAY does not time out. Then, the process proceeds to step S32; after the timer expires, the process proceeds to step S4.
  • Step S32 If the signaling plane data needs to be sent before the timer T_DELAY times out, the timer T_DELAY is stopped, and the E-RUCCH access is immediately initiated. If no signaling plane data needs to be sent before the timer T_DELAY expires, it continues to wait for receiving E-AGCH scheduling authorization information.
  • the delay of the E-RUCCH access is stopped when there is signaling plane data to be transmitted, and the transmission of the signaling plane data is not affected.
  • the access timing can be controlled through three aspects: T_DELAY, logical channel priority, and logical channel buffer data volume, which achieves the control of not only affecting the transmission of high priority data, but also controlling the access timing. purpose.
  • the presence of the cached data on the highest priority logical channel triggers the E-RUCCH access of the mobile terminal, or the presence of the cached data on the signaling channel triggers the MAC layer.
  • E-RUCCH access to ensure the timely upload of signaling data, or to set the E-RUCCH access of the mobile terminal immediately if there is cached data on the logical channel with the highest priority among the logical channels transmitting the service data.
  • the threshold value of the buffered data volume of the logical channel carrying the service plane data may be set according to the number of logical channels, for example, there are three logical channels carrying the service plane, and the threshold of the highest priority logical channel.
  • the secondary priority logical channel threshold K2 is set to 1 RLC PDU
  • the lowest priority logical channel threshold is set to 2 RLC PDUs.
  • the recommended solution is that if more than 3 logical channels carry service data, the upper limit of the threshold is limited to 2 RLC PDUs. Because the application layer always has a timer to periodically generate new data transmissions, setting the threshold is only temporary delay access, which will not cause the consequences of being inaccessible.
  • the mobile terminal does not frequently initiate E-RUCCH access due to the need for minimal, unnecessary or non-critical data uploading.
  • the E-RUCCH access needs to undergo a complex uplink peer-to-peer process, and the E-RUCCH channel is a common channel, and there is a possibility of contention conflict. Therefore, the mobile terminal is prevented from initiating E-RUCCH access multiple times. It can avoid the waste of network resources, and also avoid unnecessary power consumption of the terminal.
  • a terminal device implementation provided by the present invention is shown in Fig. 4, for example.
  • the mobile terminal of FIG. 4 includes an upload data authorization information receiving module, an E-RUCCH access module, a timer T_DELAY, a logical channel data buffer module, a timer starting module, a timer reset module, and a buffer data amount threshold module. among them:
  • a logical channel data buffering module configured to cache data to be uploaded in a logical channel of the mobile terminal
  • a timer startup module configured to: when it is determined that the authorization information of the upload data authorization information receiving module is not valid, and the amount of buffered data in the logical channel data buffer module is zero, the notification timer T DELAY is started;
  • a timer reset module configured to determine whether the timer T DELAY times out, and in the timer
  • the timer T_DELAY receives the valid authorization information notification of the upload data authorization information receiving module before the timeout
  • the timer T_DELAY is reset, and the E-RUCCH access module is notified to initiate the E-RUCCH access; and is used for the timer T_DELAY. Timing, resetting the timer 1_0£1 ⁇ , and notifying the cached data amount threshold module;
  • a buffered data volume threshold module configured to store the logical channel buffer data amount threshold table, and after receiving the notification of the timer reset module, determine whether the amount of data buffered in the logical channel data cache module exceeds The logical channel buffers the corresponding threshold value in the data volume threshold table, and when the corresponding threshold is exceeded, notifies the E-RUCCH access module to initiate E-RUCCH access.
  • the mobile terminal further includes an extended estimation window/resource persistent indication determining module, configured to determine whether an extended estimation window is configured or whether a resource persistent indication is received; correspondingly, a timer in the mobile terminal a startup module, configured to: when the authorization data of the upload data authorization information receiving module has no validity period, and the amount of cached data in the logical channel data cache module is zero, notify the extended estimation window/resource persistent indication judging module, in the extension The notification timer T_DELAY is started when the estimation result of the estimation window/resource continuation indication judging module is that the extended estimation window is not configured or the resource continuation indication is not received.
  • the logical channel data buffer module is further configured to notify the timer reset module when the amount of buffered signaling data in the logical channel carrying the signaling data is greater than zero;
  • the timer reset module is further configured to reset the timer T_DELAY when the notification of the signaling data amount is greater than zero before the timer T_DELAY times out, and notify the E-RUCCH access module to initiate the E- RUCCH access.
  • the buffered data threshold of the logical channel carrying the signaling data is zero, so that the mobile terminal can generate The signaling data is uploaded to the network in time.
  • the preferred solution is that when the logical channels carrying the service data have different priorities, in the cached data amount threshold table, the threshold value of the cached data amount of the highest priority logical channel carrying the service data is Zero, the threshold value of the buffered data volume of the secondary priority logical channel carrying the service data is greater than zero; SP, so that the service data belonging to the highest priority can also be uploaded to the network in time without delay of the timer T_DELAY.
  • the threshold value of the buffered data amount of the highest priority logical channel carrying the service data is greater than zero, and is larger than the buffered data volume of the secondary priority logical channel (the logical channel carrying the service data referred to as the traffic channel) carrying the service data.
  • Threshold; SP set different buffer data threshold according to different traffic channel priorities, wherein the highest priority traffic channel also needs to cache data exceeding its threshold to enable the mobile terminal to initiate E- RUCCH access.
  • the E-RUCCH access timing of the mobile terminal can be controlled by the custom timer, the logical channel priority, and the logical channel buffer data amount, thereby avoiding unnecessary E-RUCCH frequent access, thereby saving the network. Resources and the power consumption of the mobile terminal itself.

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本发明提供了一种移动终端和上行增强随机接入信道接入的方法，其中方法包括：当上传数据授权信息到期，且终端缓存数据量为零时，启动定时器；判断定时器是否超时，如果在定时器超时之前收到上传数据授权信息，复位定时器并发起所述E-RUCCH接入；如果在所述定时器超时之前未收到所述上传数据授权信息，在定时器超时时复位定时器并判断逻辑信道中是否有缓存数据；当逻辑信道中缓存的数据量超过逻辑信道缓存数据的门限值时，发起所述E-RUCCH接入。通过上述方法或使用上述终端，可控制移动终端的E-RUCCH接入时机，避免发起不必要的频繁接入。

Description

一种移动终端和上行增强随机接入信道接入的方法 技术领域
本发明涉及移动通信领域， 尤其涉及一种移动终端和 E-RUCCH接入的 方法。 背景技术
移动通信技术发展到第三代 （3G) , 高速上行链路分组接入 (high speed uplink packet access, HSUPA)技术提供了上行链路方向， 即从移动终端到无 线接入网络的方向针对分组业务的优化和演进。利用 HSUPA技术，上行用户 的峰值传输速率可以较第二代（2G)有大幅提高。 HSUPA业务按调度方式的 不同分为调度业务和非调度业务。 其中， 非调度业务的资源主要用于传输网 络和终端之间的信令、 速率恒定的业务等实时性要求比较高的数据。 调度业 务由服务无线网络控制器（Serving Radio Network Controller, SRNC)为基站
(Node B)分配 HSUPA资源（服务 RNC主要针对具体终端而言），再由 Node B在实时的数据传输过程中为终端分配上行资源。 Node B通过绝对授权信道 (E-AGCH)向终端发送绝对授权信息。 一条 E-AGCH上的授权信息一次只给 一个终端使用， 并且此授权信息的持续时间只有一个传输时间间隔
(Transmission Time Interval, ΤΉ)。 ΤΤΙ在 WCDMA 99中有 2ms短帧传输， 也有 10ms或更长的情况； 在 TD-HSUPA中是固定值 5ms， 在 3GPP LTE和 LTE-A中一般为 lms。 由于每次授权只分配一个 TTI内的时隙和码道资源， 当移动终端缓冲区域内数据量较大无法一次传完时， 只一个 TTI资源的分配 必然会增大调度的时延， 同时增加系统信令开销。 所以在 TD-SCDMA协议 中规定了可选的资源持续指示 （RDI) , 通过无线资源控制 （Radio Resource Control, RRC) 配置， 在信道上携带 RDI参数来提前为以后几帧分配授权， 比如指示终端在接下来的 4个 TTI继续使用该授权信息。 通过 RDI配置可减 少移动终端搜索 E-AGCH的工作量， 也减少 NodeB下发 E-AGCH的频率。
在调度业务中，终端没有 HSUPA资源（而不是正在进行调用业务或非调 度业务的传输时）、 需要上传数据时， 为了实现网络对无线资源的合理分配使 用， 网络需要实时了解终端的数据传输情况，所以终端需要向 Node B上报调 度信息（Scheduling Information, SI) ,请求授权信息， 来获得 Node B的调度。
以 TD_SCDMA标准为例， 过程如图 1所示： （ 1 )终端侧 MAC层通知物 理层发起上行增强随机接入信道（E-RUCCH)接入； （2 )终端在上行同歩时 隙（UpPTS )信道上发送用于 E-RUCCH过程的上行同歩码（SYNC-UL); (3 ) 终端在固定的帧上接收快速物理接入信道 （FPACH) 上的信息； （4) 终端根 据在 FPACH上接收到的物理信息， 在物理随机接入信道 （PRACH) 上发送 E-RUCCH信息， E-RUCCH信息里携带 SI; ( 5 ) 网络根据 E-RUCCH信息里 的 SI, 在增强的绝对授权信道 （E-AGCH) 中为终端分配授权信息， 终端完 成了 E-RUCCH接入， 即可开始正常的 HSUPA数据传输过程。 （6) 终端在 E-AGCH中指定的增强型物理上行信道（E-PUCH)上发送上行数据； （7)终 端在增强的混合自动重传指示信道 （E-HICH) 上检测 E-PUCH 上发送的 MAC-e PDU包是否被网络正确接收。
在上述（6)中， 终端通过 E-PUCH信道发送 MAC-e PDU， 里面携带 SI, SI包括终端缓存数量、 功率余量、 本小区和邻小区的路损测量信息等。 网络 侧根据 SI里携带的这些状态信息给终端分配一个 TTI的授权信息。在一次数 据的上传过程中， 如果有需要的话， 终端在每一个 TTI里发送的数据包里都 会要求网络继续分配授权信息，网络会根据这个 SI继续在 E-AGCH信道上给 终端分配授权信息。
在进行 HSUPA 数据传输过程中， 为了避免终端发起一些不必要的 E-RUCCH接入， 协议对以下两种情况做出了不同的保护：
1.如果终端上一帧有授权信息， 本帧没有授权信息， 但有缓存数据需要 发送， 终端会启动一个定时器 T_WAIT。 在定时器 T-WAIT超时前， 网络可 能会给终端下发授权信息来发送这些缓存数据， 如果直到 T-WAIT超时仍然 收不到网络的授权信息， 终端可通过发起 E-RUCCH接入向网络请求授权；
2.如果终端上一帧有授权信息， 本帧没有授权信息时， 而且终端目前没 有缓存数据需要发送， 有一个可选方案是， 网络会给终端 MAC层配置一个 可选的扩展估计窗（Extended Estimation Window): 使用扩展估计窗， 可以预 防用户在未来一小段时间内可能有可用的授权时候，触发不必要的 E-RUCCH 传输。 比如在遇到混合自动重传的情况时， 移动终端能否会获得传输新数据 的授权， 可通过查看扩展估计窗来判断。
然而， 由于只是可选配置， 且应用扩展估计窗会增加网络处理负担， 所 以从目前的情况来看， 并没有网络设备商会给终端配置扩展估计窗。 所以， 当终端在终端上一帧有授权信息， 本帧没有授权信息且目前没有缓存数据需 要发送的情况下， 待到有缓存数据需要发送时， 会立即通过 E-RUCCH信道 发送接入请求给网络， 以请求网络分配授权信息。 在上行传输不流畅的情况 下， 即终端在发完一段数据后在一个比较短的时间内又有数据要上传， 这样 会多次触发 E-RUCCH接入。 发明内容
为了避免移动终端不必要的频繁 E-RUCCH接入， 本发明提供了一种移 动终端上行增强随机接入信道 （E-RUCCH) 接入的方法， 包括：
歩骤 1， 当上传数据授权信息到期， 且移动终端逻辑信道中缓存数据量 为零时， 启动定时器；
歩骤 2， 判断所述定时器是否超时， 如果在定时器超时之前收到新下发 的上传数据授权信息， 复位定时器并发起所述 E-RUCCH接入；
歩骤 3， 如果在所述定时器超时之前未收到所述本次上传数据授权信息， 在定时器超时时复位所述定时器并判断逻辑信道中是否有缓存数据；
歩骤 4， 当逻辑信道中缓存的数据量超过逻辑信道缓存数据的门限值时， 发起所述 E-RUCCH接入。
进一歩的， 在所述启动定时器之前进一歩包括： 判断是否配置有扩展估 计窗或者是否收到资源持续指示 RDI;
所述启动定时器是在所述判断结果为未配置所述扩展估计窗， 或者未收 到所述资源持续指示 RDI的情况下启动。
较优的， 在所述定时器超时之前， 如果所述逻辑信道中， 承载信令数据 的逻辑信道有缓存数据， 复位所述定时器并发起所述 E-RUCCH接入。
更优的， 当所述逻辑信道为承载信令数据的逻辑信道时， 所述逻辑信道 的缓存数据量的门限值为零。 进一歩优化的， 当所述逻辑信道为承载业务数据的逻辑信道， 且具有不 同的优先级时， 所述承载业务数据的最高优先级逻辑信道的缓存数据量的门 限值为零，承载业务数据的次优先级逻辑信道的缓存数据量的门限值大于零; 或者， 所述承载业务数据的最高优先级逻辑信道的缓存数据量的门限值 大于零， 并且小于所述承载业务数据的次优先级逻辑信道的缓存数据量的门 限值。
本发明实施例还提供一种移动终端， 包含上传数据授权信息接收模块、
E-RUCCH接入模块、 定时器， 以及：
逻辑信道数据缓存模块， 用于对所述移动终端逻辑信道中待上传的数据 进行缓存；
定时器启动模块， 用于在判断所述上传数据授权信息接收模块中没有有 效期内的授权信息， 且逻辑信道数据缓存模块中缓存数据量为零时， 通知所 述定时器启动；
定时器复位模块， 用于判断定时器是否超时， 并在定时器超时前收到所 述上传数据授权信息接收模块的有效授权信息通知时， 对所述定时器进行复 位， 并通知所述 E-RUCCH接入模块发起 E-RUCCH接入； 并且用于在定时 器超时时， 对所述定时器进行复位， 并通知所述缓存数据量门限值模块； 所述缓存数据量门限值模块， 用于存储所述逻辑信道缓存数据量门限值 表， 并在收到所述定时器复位模块的通知后， 判断所述逻辑信道数据缓存模 块中缓存的数据量是否超过逻辑信道缓存数据量门限值表中相应的门限值， 并在超过所述门限值时， 通知所述 E-RUCCH接入模块发起 E-RUCCH接入。
进一歩的， 所述移动终端还包括： 扩展估计窗 /资源持续指示判断模块， 用于判断是否配置有扩展估计窗或是否收到资源持续指示；
所述定时器启动模块， 具体用于在判断所述上传数据授权信息接收模块 中没有有效期内的授权信息，且逻辑信道数据缓存模块中缓存数据量为零时， 通知扩展估计窗 /资源持续指示判断模块，在所述扩展估计窗 /资源持续指示判 断模块的判断结果为未配置扩展估计窗或未收到资源持续指示时， 通知所述 定时器启动。
较优的， 所述逻辑信道数据缓存模块进一歩用于， 当承载信令数据的逻 辑信道中缓存信令数据量大于零时， 通知定时器复位模块；
所述定时器复位模块进一歩用于， 在定时器超时前收到所述信令数据量 大于零的通知时， 对所述定时器进行复位， 并通知所述 E-RUCCH接入模块 发起 E-RUCCH接入。
更优的， 所述逻辑信道缓存数据量门限值模块存储的缓存数据量门限值 表中， 承载信令数据的逻辑信道的缓存数据量门限值为零。
更进一歩的， 当承载业务数据的逻辑信道具有不同的优先级时， 所述缓 存数据量门限值表中， 所述承载业务数据的最高优先级逻辑信道的缓存数据 量的门限值为零， 承载业务数据的次优先级逻辑信道的缓存数据量的门限值 大于零；
或者， 所述缓存数据量门限值表中， 所述承载业务数据的最高优先级逻 辑信道的缓存数据量的门限值大于零， 并且小于所述承载业务数据的次优先 级逻辑信道的缓存数据量的门限值。
使用上述方法或移动终端， 通过自定义定时器、 逻辑信道优先级和逻辑 信道缓存数据量来控制移动终端的 E-RUCCH接入时机， 避免移动终端发起 不必要的频繁接入， 可节省网络资源和移动终端功率的消耗。 附图说明
图 1表示现有 TD-SCDMA下移动终端 E-RUCCH接入的信令流程图。 图 2表示本发明一方法实施例流程图。
图 3表示本发明一方法实施例示意图。
图 4表示本发明一装置实施例结构图。 具体实施方式
为使本发明的目的、 歩骤和优点更加清楚， 下面通过实施例， 结合附图 对本发明进行进一歩具体描述。
本发明提供的移动终端上行增强随机接入信道接入的方法实施方式包 含：
歩骤 1， 当上传数据授权信息到期， 且移动终端逻辑信道中缓存数据量 为零时， 启动定时器；
歩骤 2， 判断所述定时器是否超时， 如果在定时器超时之前收到新下发 的上传数据授权信息， 复位定时器并发起所述 E-RUCCH接入；
歩骤 3， 如果在所述定时器超时之前未收到所述本次上传数据授权信息， 在定时器超时时复位所述定时器并判断逻辑信道中是否有缓存数据；
歩骤 4， 当逻辑信道中缓存的数据量超过逻辑信道缓存数据的门限值时， 发起所述 E-RUCCH接入。
图 2所示的方法实施例的歩骤如下：
歩骤 S1 : 终端根据 Node B的授权信息发送数据， 在最近一次 E-AGCH 授权适用的最后一个 TTI的数据发送后， 判断逻辑信道内的缓存量是否为 0， 如果缓存量大于 0， 则启动定时器 T_WAIT， 执行用 T_WAIT控制接入的方 案， 等待网络在接下来的时间里可能会给终端分配的授权信息； 如果缓存量 等于 0， 进入歩骤 S2。
歩骤 S2: 判断网络是否给终端配置了扩展估计窗， 如果网络给终端配置 了扩展估计窗， 则判断扩展估计窗内是否配置有 RDI, 如果含有之前配置的 RDI, 则不会立即发起 E-RUCCH接入， 而是使用扩展估计窗和 RDI来控制 E-RUCCH接入时机。扩展估计窗一般是毫秒级，如果配置的扩展估计窗长度 为 5个 TTI, 当 TTI被定义为 5毫秒时， 即检查接下来的 25毫秒内有没有预 先配置的 RDI授权。 如果配置了扩展估计窗却没有 RDI, 或是没有配置扩展 估计窗， 则进入歩骤 S3。
歩骤 S3 : 启动终端自定义的定时器 T_DELAY， 等待网络可能分配的调 度授权信息。 T_DELAY的长度较佳采用 2到 5个 TTI, 此处推荐设置为 5个 TTI。
在定时器 T_DELAY超时前如果网络有 E-AGCH调度授权信息分配给终 端，则终端停止定时器 T_DELAY，并根据此授权信息进行 HSUPA数据传输， 否则， 在定时器1_0£1^¥未超时的情况下， 继续等待接收 E-AGCH调度授 权信息； 在定时器超时后， 进入歩骤 S4。
设置 T_DELAY的作用主要有两个： 一是在 T_DELAY未超时前等待网 络是否有调度资源配下来，避免提前发起无效的 E-RUCCH接入； 2.即使此定 时器超时后未收到来自网络的授权信息， 也可在终端侧多积累数据， 再一次 性发起 E-RUCCH接入， 而不是一旦有了缓存数据就发起接入。
歩骤 S4: 定时器 T_DELAY超时后， 停止并复位定时器 T_DELAY。 网络在最开始建立 HSUPA传输的时候，就给终端配置了此次传输的逻辑 信道的个数， 以及每个逻辑信道的优先级。最多有 15个逻辑信道和 8个优先 级（0〜7)， 其中 4条逻辑信道用来承载信令数据， 且这些信道的优先级也不 同。 一般来说， 承载信令面的逻辑信道的优先级会高于承载业务数据的逻辑 信道的优先级。此时，如果具有最高优先级的逻辑信道中有缓存数据，则 MAC 层立刻发起 E-RUCCH接入， 这样一般能保证高优先级信令数据的及时传输； 如果最高优先级逻辑信道没有缓存， 而其他优先级别 （可统称为次优先级） 的逻辑信道缓存的 RLC PDU个数大于门限值 K， 则 MAC层也会立刻发起 E-RUCCH接入， 否则继续等待应用层数据， 直到这些逻辑信道缓存的 RLC PDU个数大于门限值 K时才会发起接入。或者， 忽略承载信令数据的逻辑信 道之间的优先级，一旦信令信道上有缓存数据， MAC即发起 E-RUCCH接入， 以保证信令数据的及时上传。
通过这种方法， 从逻辑信道优先级和缓存数据量上来控制 E-RUCCH接 入时机， 能够避免移动终端频繁发起 E-RUCCH接入， 避免网络资源的浪费 和终端功耗的浪费。 通过自定义定时器 T_DELAY的控制， 避免终端在发完 数据后较短时间内如果又有数据发送的情况下立即发起 E-RUCCH接入， 尤 其是某些网络在 E-AGCH上的分配策略是对当前小区内的多个用户周期性地 轮流给 E-AGCH授权，在这种网络下定时器 T_DELAY的优点更能体现出来， 因为终端在 T_DELAY超时前可能就收到网络的 E-AGCH授权， 并根据此授 权发送数据， 避免终端提前发起无效 E-RUCCH接入。
在上述整个过程中， 定时器 T_DELAY无论在超时前停止还是在超时后 停止， 只在下面的情况下， 定时器 T_DELAY 才会再次启动： 终端发起 E-RUCCH接入后开始传输数据， 直到最近一次 E-AGCH授权适用的最后一 个 TTI的数据发送后， 逻辑信道内的缓存量为 0， 且网络没有配置扩展估计 窗和 RDI的情况， 即回到歩骤 S3。
对歩骤 S4， 更优的方案是根据优先级的级别选择不同的门限值 Ki， 比如 优先级为 1 (最高优先级为 0) 的逻辑信道的缓存数据门限值 K1 , 优先级为 2的逻辑信道的缓存数据门限值为 K2， 以此类推。 K1小于 Κ2 , 越是优先级 靠后的逻辑信道， 其积累越多的缓存数据才被允许发起接入。 当优先级为 0 和 1的信道上皆没有缓存数据，或者优先级为 1的信道上缓存数据量低于 K1 时， 如果优先级为 2的信道上缓存的 PDU个数大于 Κ2， 移动终端才会触发 E-RUCCH接入。自然的，也可以只限定少量的门限值梯度，比如优先级为 1〜 3的逻辑信道的缓存数据的门限值皆为 K1 , 优先级更低的逻辑信道的缓存数 据的门限值皆为 Κ2。更推荐的方案是， 对信令信道采用的缓存数据量门限值 为零， 对业务信道采用上述分优先级设置门限值的方式。
在缓存数量小于门限值， 比如只有 1个 RLC PDU时， 这种 PDU很可能 是终端侧 RLC 层周期性生成的状态包， 当然不必要专门为这个状态包发起 E-RUCCH接入。一般说来，若是应用层的数据需要发送，数据量是比较大的， 需要多个 RLC PDU来容纳， 所以可以设定这个门槛来控制接入时机。
较上述的方法实施例， 本发明提供更优的方案：
如图 3所示， 上述歩骤 S3具体包括：
歩骤 S31 : 在定时器 T_DELAY超时前如果网络有 E-AGCH调度授权信 息分配给终端，则终端停止定时器 T_DELAY，并根据此授权信息进行 HSUPA 数据传输， 否则， 在定时器 T_DELAY未超时的情况下， 转入歩骤 S32; 在 定时器超时后， 进入歩骤 S4。
歩骤 S32: 在定时器 T_DELAY超时前若有信令面数据需要发送， 则停 止定时器 T_DELAY， 同时立即发起 E-RUCCH接入。 若定时器 T_DELAY超 时前无信令面数据需要发送， 继续等待接收 E-AGCH调度授权信息。
通过检测有否信令面数据需要发送， 在有信令面数据需发送时即停止对 E-RUCCH接入的延迟的方式，不会影响信令面数据的发送。对业务面数据则 可以通过 T_DELAY、逻辑信道优先级、逻辑信道缓存数据量 3个方面来控制 接入时机， 达到了既不影响高优先级数据的发送， 又对接入时机做出了控制 的目的。
所以对应歩骤 S4， 除了在最高优先级逻辑信道上存在缓存数据即触发移 动终端的 E-RUCCH接入， 或者信令信道上存在缓存数据即触发 MAC层的 E-RUCCH接入， 以保证信令数据的及时上传，亦可设置传输业务数据的逻辑 信道中拥有最高优先级的逻辑信道上一旦有缓存数据， 也会立即触发移动终 端的 E-RUCCH接入。 而其他承载业务面数据的逻辑信道的缓存数据量的门 限值， 可以根据逻辑信道个数来设置， 比如承载业务面的逻辑信道一共有 3 个， 则其中最高优先级逻辑信道的门限值 K1设为 0， 次优先级逻辑信道门限 值 K2设为 1个 RLC PDU, 最低优先级逻辑信道门限值设为 2个 RLC PDU。 推荐的方案是， 如果超过 3个逻辑信道承载业务数据， 则门限值的上限限制 为 2个 RLC PDU。 因为应用层总会有定时器周期性来新生成数据传输， 所以 设置门限只是暂时延迟接入， 不会造成一直无法接入的后果。
本发明提供的另一实施例中， 如前面描述的那样， 由于使用扩展估计窗 的不便， 目前为止并极少有网络设备商会给终端配置扩展估计窗。 由于 RDI 也属于可选配置， 且因 RDI算法的复杂性， 更为极少的网络会提供 RDI, 所 以上述歩骤 S2也可直接省去。如图 3所示， 在判断终端缓存数据量为 0的情 况下， 直接启动定时器1_0 1^¥。
通过上述的实施例， 移动终端不用因极少、 不必要或非紧迫的数据上传 的需求而频繁的发起 E-RUCCH接入。 且如图 1所示， 进行 E-RUCCH接入 需要经复杂的上行同歩过程， 且 E-RUCCH信道是公共信道， 存在竞争冲突 可能， 所以， 避免移动终端多次发起 E-RUCCH接入， 可避免网络资源的浪 费， 而且也会避免终端增加不必要的功耗。
本发明提供的一个终端装置实施例如图 4所示。
图 4的移动终端包含上传数据授权信息接收模块、 E-RUCCH接入模块、 定时器 T_DELAY、逻辑信道数据缓存模块、定时器启动模块、定时器复位模 块和缓存数据量门限值模块。 其中：
逻辑信道数据缓存模块， 用于对移动终端逻辑信道中待上传的数据进行 缓存；
定时器启动模块， 用于在判断上传数据授权信息接收模块中没有有效期 内的授权信息， 且逻辑信道数据缓存模块中缓存数据量为零时， 通知定时器 T DELAY启动；
定时器复位模块， 用于判断定时器 T DELAY 是否超时， 并在定时器 T_DELAY超时前收到所述上传数据授权信息接收模块的有效授权信息通知 时，对定时器 T_DELAY进行复位，并通知 E-RUCCH接入模块发起 E-RUCCH 接入； 并且用于在定时器 T_DELAY超时时， 对定时器1_0£1^¥进行复位， 并通知所述缓存数据量门限值模块；
缓存数据量门限值模块， 用于存储所述逻辑信道缓存数据量门限值表， 并在收到所述定时器复位模块的通知后， 判断逻辑信道数据缓存模块中缓存 的数据量是否超过逻辑信道缓存数据量门限值表中相应的门限值， 并在超过 相应门限值时， 通知 E-RUCCH接入模块发起 E-RUCCH接入。
在另一个移动终端装置实施例中， 移动终端还包含扩展估计窗 /资源持续 指示判断模块， 用于判断是否配置有扩展估计窗或是否收到资源持续指示； 对应的， 移动终端中的定时器启动模块， 用于在判断上传数据授权信息 接收模块中没有有效期内的授权信息， 且逻辑信道数据缓存模块中缓存数据 量为零时， 通知扩展估计窗 /资源持续指示判断模块， 在所述扩展估计窗 /资源 持续指示判断模块的判断结果为未配置扩展估计窗或未收到资源持续指示 时， 通知定时器 T_DELAY启动。
优选的装置实施例中， 逻辑信道数据缓存模块进一歩用于， 当承载信令 数据的逻辑信道中缓存信令数据量大于零时， 通知定时器复位模块；
对应的， 定时器复位模块进一歩用于， 在定时器 T_DELAY超时前收到 所述信令数据量大于零的通知时， 对定时器 T_DELAY进行复位， 并通知 E-RUCCH接入模块发起 E-RUCCH接入。
更优的方案是， 逻辑信道缓存数据量门限值模块中存储的缓存数据量门 限值表中， 承载信令数据的逻辑信道的缓存数据量门限值为零， 这样可使移 动终端产生的信令数据及时上传至网络。
进一歩优选的方案是，当承载业务数据的逻辑信道具有不同的优先级时， 缓存数据量门限值表中， 所述承载业务数据的最高优先级逻辑信道的缓存数 据量的门限值为零， 承载业务数据的次优先级逻辑信道的缓存数据量的门限 值大于零； SP， 使属于最高优先级的业务数据， 也能不经定时器 T_DELAY 延时而及时向网络上传。
上述进一歩优选方案的另一个可替代的方案是，缓存数据量门限值表中， 所述承载业务数据的最高优先级逻辑信道的缓存数据量的门限值大于零， 并 且大于所述承载业务数据的次优先级逻辑信道 （承载业务数据的逻辑信道简 称业务信道） 的缓存数据量的门限值； SP， 按照业务信道优先级的不同设置 不同的缓存数据量门限值， 其中最高优先级的业务信道也需缓存超过其门限 值的数据量方可使移动终端发起 E-RUCCH接入。
使用这样的移动终端， 可通过自定义定时器、 逻辑信道优先级和逻辑信 道缓存数据量来控制移动终端的 E-RUCCH接入时机， 避免发起不必要的 E-RUCCH频繁接入， 可节省网络资源和移动终端自身的功率消耗。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领域的普 通技术人员来说， 在不脱离本发明原理的前提下， 还可以作出若干改进和润 饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

权 利 要 求 书
1、 一种移动终端上行增强随机接入信道 E-RUCCH接入的方法， 其特征 在于包括：
歩骤 1， 当上传数据授权信息到期， 且移动终端逻辑信道中缓存数据量 为零时， 启动定时器；
歩骤 2， 判断所述定时器是否超时， 如果在定时器超时之前收到新下发 的上传数据授权信息， 复位定时器并发起所述 E-RUCCH接入；
歩骤 3， 如果在所述定时器超时之前未收到所述本次上传数据授权信息， 在定时器超时时复位所述定时器并判断逻辑信道中是否有缓存数据；
歩骤 4， 当逻辑信道中缓存的数据量超过逻辑信道缓存数据的门限值时， 发起所述 E-RUCCH接入。
2、 根据权利要求 1所述 E-RUCCH接入的方法， 其特征在于：
在所述启动定时器之前进一歩包括： 判断是否配置有扩展估计窗或者是 否收到资源持续指示 RDI;
所述启动定时器是在所述判断结果为未配置所述扩展估计窗， 或者未收 到所述资源持续指示 RDI的情况下启动。
3、 根据权利要求 1所述 E-RUCCH接入的方法， 其特征在于：
在所述定时器超时之前， 如果所述逻辑信道中， 承载信令数据的逻辑信 道有缓存数据， 复位所述定时器并发起所述 E-RUCCH接入。
4、 根据权利要求 1至 3任一项所述的 E-RUCCH接入的方法， 其特征在 于：
当所述逻辑信道为承载信令数据的逻辑信道时， 所述逻辑信道的缓存数 据量的门限值为零。
5、 根据权利要求 4所述的 E-RUCCH接入的方法， 其特征在于： 当所述逻辑信道为承载业务数据的逻辑信道， 且具有不同的优先级时， 所述承载业务数据的最高优先级逻辑信道的缓存数据量的门限值为零， 承载 业务数据的次优先级逻辑信道的缓存数据量的门限值大于零；
或者， 所述承载业务数据的最高优先级逻辑信道的缓存数据量的门限值 大于零， 并且小于所述承载业务数据的次优先级逻辑信道的缓存数据量的门 限值。
6、 一种移动终端， 包含上传数据授权信息接收模块和 E-RUCCH接入模 块， 其特征在于， 还包括： 定时器， 以及：
逻辑信道数据缓存模块， 用于对所述移动终端逻辑信道中待上传的数据 进行缓存；
定时器启动模块， 用于在判断所述上传数据授权信息接收模块中没有有 效期内的授权信息， 且逻辑信道数据缓存模块中缓存数据量为零时， 通知所 述定时器启动；
定时器复位模块， 用于判断定时器是否超时， 并在定时器超时前收到所 述上传数据授权信息接收模块的有效授权信息通知时， 对所述定时器进行复 位， 并通知所述 E-RUCCH接入模块发起 E-RUCCH接入； 并且用于在定时 器超时时， 对所述定时器进行复位， 并通知所述缓存数据量门限值模块； 所述缓存数据量门限值模块， 用于存储缓存数据量门限值表， 并在收到 所述定时器复位模块的通知后， 判断所述逻辑信道数据缓存模块中缓存的数 据量是否超过所述缓存数据量门限值表中相应的， 并在超过所述门限值时， 通知所述 E-RUCCH接入模块发起 E-RUCCH接入。
7、 根据权利要求 6所述的移动终端， 其特征在于， 所述移动终端进一歩 包括： 扩展估计窗 /资源持续指示判断模块， 用于判断是否配置有扩展估计窗 或是否收到资源持续指示；
所述定时器启动模块， 具体用于在判断所述上传数据授权信息接收模块 中没有有效期内的授权信息，且逻辑信道数据缓存模块中缓存数据量为零时， 通知扩展估计窗 /资源持续指示判断模块，在所述扩展估计窗 /资源持续指示判 断模块的判断结果为未配置扩展估计窗或未收到资源持续指示时， 通知所述 定时器启动。
8、 根据权利要求 6所述的移动终端， 其特征在于， 所述逻辑信道数据缓 存模块进一歩用于，当承载信令数据的逻辑信道中缓存信令数据量大于零时， 通知定时器复位模块；
所述定时器复位模块进一歩用于， 在定时器超时前收到所述信令数据量 大于零的通知时， 对所述定时器进行复位， 并通知所述 E-RUCCH接入模块 发起 E-RUCCH接入。
9、 根据权利要求 6、 7或 8任一项所述的移动终端， 其特征在于， 所述 逻辑信道缓存数据量门限值模块存储的逻辑信道缓存数据量门限值表中， 承 载信令数据的逻辑信道的缓存数据量门限值为零。
10、 根据权利要求 9所述的移动终端， 其特征在于， 当承载业务数据的 逻辑信道具有不同的优先级时， 所述逻辑信道缓存数据量门限值表中， 所述 承载业务数据的最高优先级逻辑信道的缓存数据量的门限值为零， 承载业务 数据的次优先级逻辑信道的缓存数据量的门限值大于零；
或者， 所述逻辑信道缓存数据量门限值表中， 所述承载业务数据的最高 优先级逻辑信道的缓存数据量的门限值大于零， 并且小于所述承载业务数据 的次优先级逻辑信道的缓存数据量的门限值。
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