Nothing Special   »   [go: up one dir, main page]

WO2007134546A1 - Procédé et système d'accès à un terminal - Google Patents

Procédé et système d'accès à un terminal Download PDF

Info

Publication number
WO2007134546A1
WO2007134546A1 PCT/CN2007/001680 CN2007001680W WO2007134546A1 WO 2007134546 A1 WO2007134546 A1 WO 2007134546A1 CN 2007001680 W CN2007001680 W CN 2007001680W WO 2007134546 A1 WO2007134546 A1 WO 2007134546A1
Authority
WO
WIPO (PCT)
Prior art keywords
orthogonal code
terminal device
access
paging
paging message
Prior art date
Application number
PCT/CN2007/001680
Other languages
English (en)
French (fr)
Inventor
Quanzhong Gao
Mingxia Xu
Original Assignee
Huawei Technologies Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007134546A1 publication Critical patent/WO2007134546A1/zh
Priority to US12/276,741 priority Critical patent/US8229474B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • 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
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment

Definitions

  • the present invention relates to the field of communications, and in particular, to a terminal device access method and system. Background technique
  • the uplink access channel is a single shared channel, and each terminal device can randomly initiate the access process according to its own will, if two or more terminal devices simultaneously send the access information
  • the signal of the spatial interface will be confused, which will cause the receiving end to not correctly demodulate the originating signal. This is called the collision of random access.
  • the random access method is a process of initiating access by means of a probe.
  • the content of the probe can be modulated by mutually orthogonal code groups, and the random access of different terminal devices is modulated by different orthogonal codes, so that even if the random access message is simultaneously transmitted, the terminal can be correctly received. receive.
  • different terminal equipments using the same orthogonal code modulation will cause mutual interference, and the useful information cannot be solved at the receiving end. Therefore, in order to improve the performance of random access, it is necessary to avoid the terminal device selecting the same orthogonal code at the same transmission time.
  • random access initiated by a terminal device has different cause values, and the most important ones are two types: response paging and initial call of the terminal device.
  • Paging means that the remote terminal device calls the terminal device in the wireless communication system, that is, the terminal device in the wireless communication system makes a call. Since the link from the far-end to the network side has been established, the requirement for the access delay is higher than that of the terminal device under the same conditions. According to different reason values of the random access initiated by the terminal device, different terminal devices can be simultaneously collected.
  • a Walsh code is a set of code sequences consisting of 0, 1, or 1, -1, with a length of 2 to the power of n. Once the dimensions of the Walsh code are determined, the combination of all Walsh codes is determined. For example, there are 1024 types of 1024-dimensional Walsh codes. The same code sequence, each sequence is also 1024 bits in length, which can be called 1024 code sequences, and each of the two code sequences is orthogonal.
  • the random access in the existing IEEE 802.20 protocol uses a 1024-dimensional Walsh code to modulate the contents of the access probe.
  • the index number of 1024 code sequences is 0 - 1023, and the index number of 0 - 17 is reserved for the active set for switching, power control and time correction.
  • the index access number 18 - 1023 (1006 total) is reserved for the access terminal (AT) to send access probes.
  • the transmitted access probe includes probes that respond to paging and AT originating calls.
  • each superframe contains one preamble and 24 physical frames, as shown in Figure 1 and Figure 2.
  • 1 is a superframe structure diagram given by the existing IEEE802.20 protocol
  • FIG. 2 is a schematic diagram of transmitting paging and random access. As can be seen from the figure, every two superframes can send a quick page packet at the preamble of the first superframe.
  • the quick page packet contains the complete content of the paging message, which is also called one-step paging; if there are 2-8 pages in the paging packet (up to 8 pages are supported)
  • the complete paging message will be sent in the forward dedicated channel F-DCH on the frame of the physical frame number 1-7 of the next superframe, which is called a two-step paging.
  • F-DCH forward dedicated channel
  • a total of 4 physical frames per medium frame per superframe allows random access probes to be transmitted. As shown in Figure 1.
  • the contents of the paging message in the F-DCH block are shown in Figure 3.
  • the number of terminal identifiers is 5 bits, which indicates how many terminal devices have paging messages in the message.
  • the number of times after the terminal identifier ATIRecord and whether the connection OpenConnectionRequired needs to be established is the value of the NumATIRecords parameter. How many terminal devices are paging the two fields, and they are arranged in order.
  • the paging message can also be sent to the terminal device through the paging message PageUATI message in the F-DCH, as shown in FIG.
  • the paging of the terminal device may be completed in the message, and the paging message may be a broadcast message, and all the terminal devices may receive the unicast identification number UATI field of the terminal device in the message and the UATI saved in the terminal device. Match.
  • FIG. 5 it is a schematic diagram of a collision between a response paging message and a response paging and an initial call message of different terminal devices at the same time in the prior art.
  • the terminal device that responds to the paging needs to send the access probe multiple times to access the system, increasing the delay in responding to the paging, and affecting the performance of the paging. Summary of the invention
  • the embodiments of the present invention provide a method and a system for accessing a network by a terminal device in response to paging, which are used to solve the problem that a terminal device that responds to paging in the prior art may generate a collision and increase response paging. Delay, affecting paging performance issues.
  • a terminal device access method includes:
  • the network side sends a paging message to the terminal device
  • the terminal device determines orthogonal code information that is different from the current system access usage according to a preset rule; the terminal device acquires a corresponding orthogonal code according to the orthogonal code information, and modulates the access probe according to the orthogonal code. ;
  • the terminal device sends the access probe to the network side to perform network access.
  • a terminal device access system wherein the terminal device responds to the paging message sent by the network side, and includes: a paging message sending unit, located at the network side, configured to send a paging message to the terminal device; and an orthogonal code information determining unit The terminal device is configured to determine orthogonal code information that is different from the current system access usage according to a preset rule.
  • a network access unit located in the terminal device, configured to modulate an access probe according to the orthogonal code, and send the access probe to the network side to perform network access.
  • the terminal device responding to paging can select a unique access code by a method, and is different from the orthogonal code used by other terminal devices that initiate the initial call, thereby ensuring response to paging.
  • the orthogonal code used by the terminal device must not be orthogonal to that used by other terminal devices. The code conflicts, and the delay in responding to the paging between the terminal devices responding to the paging and the response to the paging is avoided as compared with the prior art.
  • FIG. 1 is a schematic diagram of a superframe structure in a prior art IEEE 802.20 protocol
  • FIG. 2 is a schematic diagram of a quick paging and a complete paging message in the IEEE 802.20 protocol of the prior art
  • FIG. 3 is a composition diagram of each field of a paging message in an F-DCH block in the prior art
  • FIG. 5 is a schematic diagram of a collision between a terminal device that responds to paging at different times and a terminal device that responds to paging at the same time in the prior art;
  • Embodiment 1 of the present invention is a schematic flowchart of Embodiment 1 of the present invention.
  • FIG. 7 is a schematic diagram of correspondence between different superframes and orthogonal codes according to Embodiment 3 of the present invention
  • FIG. 8 is a schematic flowchart of Embodiment 3 of the present invention
  • FIG. 9 is a schematic diagram of a terminal device listening to a quick paging message according to Embodiment 4 of the present invention
  • FIG. 10 is a schematic structural diagram of a system according to Embodiment 5 of the present invention. detailed description
  • FIG. 6 it is a schematic flowchart of Embodiment 1 of the present invention. As can be seen from the figure, the following steps are mainly included:
  • the network side sends a paging message to the terminal device.
  • the network side When the network side pages the terminal device, it sends a paging message to the terminal device, and the paging message format conforms to the related requirements of the foregoing IEEE 802.20 protocol.
  • S620 The terminal device determines, according to a preset rule, an orthogonal code signal that is different from the current system access usage. Is ⁇
  • the terminal device determines an orthogonal code that is not used by the current system according to a preset rule.
  • the preset rule may be multiple.
  • the terminal device may determine the orthogonal code used for the current access according to the location of the paging message and the system time of the paging message.
  • the orthogonal code used is different from the orthogonal code currently being used. This ensures that the orthogonal code used by the terminal device responding to the paging to initiate the access is different from the orthogonal code used by the terminal device in the current system to ensure smooth access.
  • a dedicated orthogonal code resource may be separately set for the terminal device that responds to the paging, and the terminal device determines the used orthogonal code from the dedicated orthogonal code resource. If the terminal device responding to the paging does not occupy the available orthogonal code resources, the terminal device that originated the call may also use the unoccupied orthogonal code resources.
  • the correspondence between the location of the first orthogonal code resource and the location where the paging message is located and the system time where the paging message is located may be established.
  • the orthogonal codes in the first orthogonal code resource may be numbered, and the values are calculated according to the number and the user identifier and the current system superframe number modulo 4, and the corresponding relationship is established.
  • the orthogonal code information may be determined for the terminal device according to the superframe number modulo N operation result.
  • the terminal device acquires a corresponding orthogonal code by using the orthogonal code information, modulates the access probe by using the orthogonal code, and sends the access probe to the network side to perform network interference.
  • a timer may also be started in step S620;
  • step S630 the terminal device is suspended from using the orthogonal code according to the threshold set by the timer.
  • a part of all available orthogonal code resources is specifically provided for the terminal device responding to the paging to be used during access, and the counter of the terminal device and the counter for responding to the paging are set. Correspondence between the codes, and then set according to the time limit of the orthogonal codes that the terminal device can use. Set the timer.
  • This embodiment 2 divides 8 of all available orthogonal code resources for terminal devices that specifically respond to paging, such as orthogonal codes with index numbers 18-25, and specifies the correspondence as shown in Table 1. Other orthogonal codes are used exclusively for the terminal device that originated the call.
  • the terminal device also needs to increase the counter and timer, and the initial state of the counter is 0.
  • FIG. 2 if there are multiple quick paging messages in the forward superframe N, a complete paging message is sent in the superframe N+1; a new quick paging is sent in the superframe N+2.
  • the message if there is more than one quick page, sends a detailed paging message of the superframe N+2 in the superframe N+3. Subsequent superframes and so on.
  • the special orthogonal code used by the terminal device according to Table 1 for the superframe N+1 will be newly added in the superframe N+3.
  • the terminal device in the paging message is used. Therefore, when the superframe N+1, the terminal device uses the orthogonal code corresponding to the autonomous device to have a time limit of 2 superframes, otherwise it will be the same as the orthogonal code used by the terminal device when N+3. , a conflict will occur. Therefore, if the terminal device that is paged in the N+1 superframe is already connected to the system in the two superframes in the reverse superframe, the orthogonal code is no longer needed, so that orthogonal code collision does not occur.
  • the terminal device to which the N+1 superframe is paged fails to access the system within 2 superframes in the reverse superframe, a timer of 2 superframes must be specified. If the terminal device that responds to the paging timeout has not received the Access Grant message on the network side, the terminal device responding to the paging should select an orthogonal code from the remaining orthogonal code set left to initiate the initial call for access.
  • a terminal device counter value is set with a current system superframe number modulo 4 value selection result and a corresponding relationship list using orthogonal codes, and the terminal device receives the paging message sent by the system side. Then, according to the foregoing correspondence list, the orthogonal code used by the terminal device for the current access is determined.
  • Embodiment 3 divides 16 of all available orthogonal code resources for terminal devices that specifically respond to paging, such as orthogonal codes with index numbers 18-33, and specifies the correspondence as shown in Table 2. Other orthogonal codes are used exclusively for the terminal device that originated the call.
  • the terminal device also needs to increase the counter and timer, and the initial state of the counter is 0. As shown in FIG. 7, if there are multiple quick paging messages in the pre-superframe N, a complete paging message is sent in the superframe N+1; a new quick paging message is sent in the superframe N+2. If there is more than one quick page, the detailed paging message of the super frame N+2 is sent in the super frame N+3. Subsequent superframes and so on.
  • the dedicated orthogonal codes available to the terminal device in the new paging message at the superframe N+3 are 26-33, and The orthogonal code of 18-25 in the superframe N+4 will be reused by the terminal device in the new paging message, so the terminal device uses the autonomously corresponding orthogonal code to have 4 superframes when the superframe N+1
  • the terminal device that is paged in the N+1 superframe is already connected to the system in the four superframes in the reverse superframe, the orthogonal code is no longer needed, so that orthogonal code collision does not occur. If the terminal device to which the N+1 superframe is paged fails to access the system within 4 superframes in the reverse superframe, a timer of 4 superframes must be specified. If the terminal device that responds to the paging timeout still does not receive the access grant Access Grant message on the network side, the terminal device responding to the paging should select an orthogonal code from the remaining orthogonal code set left to initiate the initial call. Access.
  • Table 2 Correspondence between the value of the terminal device counter and the orthogonal code index number. The value of the counter. The orthogonal code of the corresponding quick paging information in the superframe N+2 of the corresponding quick paging counter in the superframe N. Index number (orthogonal code index number available for superframe value message) The value of the modulo 4 is 0) (the value of the superframe number modulo 4 is 2)
  • 8 25 8 33 is a schematic diagram showing the correspondence between different superframes and orthogonal codes of the third embodiment as shown in FIG.
  • Embodiment 3 includes the following steps:
  • a counter needs to be added in each terminal device, and the initial state of the counter is 0;
  • the terminal device receives the corresponding complete paging message in the F-DCH block of the next superframe.
  • the terminal device counts the plurality of ATIRecords included in the received paging message packet and matches the UATI of the terminal device itself; or the terminal device counts the received broadcast paging message PageUATI and matches the UATI of the terminal device itself. ;
  • the embodiment 3 it is a scheme for sending a plurality of paging messages to the network side. If the network side sends only one paging message in the pBCH1, the counter 1 in the terminal device matching the paging message is responded. The paging terminal device sends a random access using the orthogonal code of the corresponding orthogonal code index number 18 or 26 in Table 1; and the terminal device counter that does not match the paging message is cleared.
  • the message packet contains multiple ATIRecords, and the counter is incremented by one every time an ATIRecord is read until the ATIRecord matching the UATI of the terminal device itself is read. Record until
  • the terminal device receives the PageUATI message in the F-DCH, or has both the paging packet including the plurality of paging messages and the PageUATI message of the single paging message, each time a paging message is read The counter is incremented until the paging message matching the UATI of the terminal device itself is read; if the terminal device does not match the same message as its own UATI from the paging message on the network side, that is, in the paging message If there is no paging to the terminal device, the counter of the terminal device is cleared.
  • the terminal device uses the superframe number of the current system mod 4;
  • the index number of the corresponding orthogonal code is detected from Table 2; according to the value of the counter in step S802 (determining the value of the row in Table 2) and the value calculated in step S803 above ( Determining the value of the column in Table 2) Find the index number of the corresponding orthogonal code from Table 2;
  • the timer is cleared.
  • the timer is cleared; and the terminal device can no longer use the corresponding orthogonal code, and must be orthogonal to the calling terminal device.
  • the orthogonal code is selected in the code set for random access.
  • Embodiment 4 sets a special orthogonal code to the terminal device that responds to the paging, but is different from Embodiment 2. That is, the terminal device that initiates the initial call needs to listen to the quick paging message in the forward superframe preamble before the random access, as shown in FIG. 9 , which is a schematic diagram of the terminal device listening to the quick paging message in the first embodiment. After listening to the four forward paging messages in the forward superframe N, the orthogonal codes defaulting to 18-21 are reserved for the terminal device that responds to the paging, and the initial calling terminal device starts from the index number after 22 Select the orthogonal code for access.
  • FIG. 10 it is a schematic diagram of a terminal device accessing system according to Embodiment 5 of the present invention.
  • the system includes a network side for accessing the terminal device 1010, and the system further includes:
  • the paging message sending unit 1021 is located at the network side and is configured to send a paging message to the terminal device.
  • the orthogonal code information determining unit 1011 may be located at the terminal device 1010 or may be located at another location for The rule is set to confirm the orthogonal code information used in the current access, for example, according to the terminal device identification information and the system superframe information, and the orthogonal code information used for the current access is determined;
  • the network access unit 1012 may be located at the terminal device 1010, or may be located at another location, configured to modulate an access probe according to the orthogonal code, and send the access probe to the network side for network access. .
  • the system also includes:
  • the orthogonal code information storage unit 1013 is configured to store a preset orthogonal code determining rule, for example, preset a correspondence between the orthogonal code resource and the location where the paging message is located and the system time where the paging message is located.
  • the system further includes:
  • the counter unit 1014 located at the terminal device 1010, may also be located at another location for counting the number of ATIRecords and the number of PageUATI messages included in the received physical frame F-DCH paging message.
  • the system further includes:
  • the timer unit 1015 is located at the terminal device 1010, and may also be located at another location for setting a threshold.
  • the orthogonal code of the modulation access probe may also be obtained by combining or changing the orthogonal code information with other information, for example, related to the pilot strength of the terminal device, or may be related to the paging message. Relevant information may also be related to formulas resulting from combinations or variations of such information.
  • the terminal device by selecting a unique access orthogonal code in the terminal device, it can be guaranteed
  • the orthogonal code used by the terminal device that initiates the initial call is different, so that the orthogonal code used by the terminal device that responds to the paging must be in conflict with the orthogonal code used by other terminal devices, and the related art phase-end device
  • the same orthogonal code is used at the same time to cause conflict, which can effectively shorten the delay of responding to the paging.
  • the random access probe is allowed to be transmitted by the terminal device responding to the paging in the random control segment, so that the delay in responding to the paging can be further shortened.

Landscapes

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

Description

一种终端设备接入方法及系统
技术领域
本发明涉及通信领域， 尤其涉及一种终端设备接入方法及系统。 背景技术
在无线通信系统中， 由于上行接入信道是单一共享信道， 而且每个终端设 备可以根据自己的意愿随机地发起接入的过程，若有两个或两个以上的终端设 备同时发送接入信息， 空间接口的信号会发生混淆， 会导致接收端无法正确解 调发端信号， 这就叫随机接入的碰撞。
随机接入的方式是以探针的方式发起接入的过程。 为了减小碰撞， 可以对 探针的内容用相互正交的码组进行调制， 不同终端设备的随机接入采用不同的 正交码调制， 这样即使同时传送随机接入消息也能被收端正确接收。 但是不同 的终端设备同时采用同样的正交码调制则会造成相互干扰，在收端无法解出有 用信息。 因此为了提高随机接入的性能需尽量避免终端设备在同一发送时刻选 用同样的正交码。
在无线通信系统中， 终端设备发起的随机接入有不同的原因值， 最主要的 有两种： 响应寻呼和终端设备的始呼。 寻呼就是远端的终端设备呼叫无线通信 系统中的终端设备， 即无线通信系统中的终端设备作被叫。 由于远端到网络側 的链路已经建立， 因此在接入时延的要求上比同等条件下的终端设备始呼要求 更高。 根据终端设备发起随机接入的不同原因值， 可将不同的终端设备同时采
Figure imgf000003_0001
正交码的生成方式有很多， 比如 Walsh序列、 Golay序列等。 Walsh码是 一组由 0、 1或 1、 -1组成的码序列， 长度为 2的 n次方。 一旦 Walsh码的维度 确定， 所有的 Walsh码的組合即确定。 比如 1024维的 Walsh码共有 1024种不 同的码序列， 每个序列的长度也为 1024位， 可称为 1024个码序列， 每两个码 序列之间都正交。
现有 IEEE 802.20协议中的随机接入使用了 1024维的 Walsh码对接入探针 的内容进行调制。 1024个码序列的索引号为 0 - 1023, 其中索引号为 0 - 17的 预留给了激活集作切换、功率控制和时间校正用。索引号为 18 - 1023 (共 1006 个）的留给接入终端（AT )发送接入探针时用。 发送的接入探针包括响应寻呼 和 AT发起始呼等原因值的探针。
在前向时， 每个超帧包含一个前导（Preamble )和 24 个物理帧， 见图 1 和图 2所示。 图 1是现有 IEEE802.20协议给出的超帧结构图， 图 2是发送寻 呼与随机接入的示意图。 从图中可见， 每两个超帧可在第一个超帧的前导发送 快速寻呼包。若仅有一条寻呼时，快速寻呼包中包含的是寻呼消息的完整内容， 这也叫一步寻呼； 若寻呼包中有 2-8条寻呼时（最多支持 8条寻呼）， 将在下 一超帧的物理帧号为 1-7的帧上的前向专用信道 F-DCH中发送完整的寻呼消 息， 这种情况称作两步寻呼。 在反向时， 每个超帧中等间距共有 4个物理帧允 许发送随机接入探针。 如图 1所示。
寻呼消息在 F-DCH块中的内容见图 3所示。终端标识个数 NumATIRecords 字段的长度是 5比特， 表示该消息中有多少个终端设备的寻呼消息； 之后的终 端标识 ATIRecord和是否需要建立连接 OpenConnectionRequired两个字段出现 的次数就是 NumATIRecords参数的值， 即有多少个终端设备的寻呼这两个字 段就出现多少次， 并顺序排列下去。
寻呼消息还可以通过 F-DCH中的寻呼消息 PageUATI消息发送给终端设 备， 见图 4所示。 该消息中可完成对一个终端设备的寻呼， 该寻呼消息可以是 广播消息，所有终端设备都可以收到，并将消息中的终端设备单播标识号 UATI 字段与终端设备中保存的 UATI相匹配。
因为现有技术是所有要发起随机接入的终端设备根据算法来选择正交码， 的正交码而发生碰撞的情况； 也难以避免终端设备在响应寻呼时和其它终端设 备在响应寻呼时选择相同的正交码而发生碰撞的情况。 如图 5所示， 是现有技 术中同一时刻不同终端设备的响应寻呼消息之间和响应寻呼与始呼消息之间 的碰撞示意图。这样对响应寻呼的终端设备会需要多次发送接入探针才能接入 系统， 增大响应寻呼的时延， 影响寻呼的性能。 发明内容
本发明实施例提供一种响应寻呼的终端设备接入网络的方法及系统，用以 解决现有技术中存在响应寻呼的终端设备在接入过程中， 可能产生碰撞， 增加 响应寻呼时延， 影响寻呼性能的问题。
一种终端设备接入方法， 包括：
网络侧向终端设备发送寻呼消息；
终端设备按照预设规则， 确定与当前系统接入使用相异的正交码信息； 终端设备根据所述正交码信息获取对应的正交码， 并根据所述正交码调制 接入探针；
终端设备向网络側发送所述接入探针， 进行网络接入。
一种终端设备接入系统， 由终端设备响应网络侧发送的寻呼消息， 包括： 寻呼消息发送单元， 位于所述网络侧， 用于向终端设备发送寻呼消息； 正交码信息确定单元， 位于所述终端设备， 用于按照预设规则， 确定与当 前系统接入使用相异的正交码信息；
网络接入单元， 位于所述终端设备， 用于根据所述正交码调制接入探针， 并向网络侧发送所述接入探针， 进行网络接入。
本发明实施例方案中， 响应寻呼的终端设备通过一种方法选择唯一的接入 交码不同， 也与其它发起初始呼叫的终端设备所使用的正交码不同， 即可保证 响应寻呼的终端设备所使用的正交码一定不会与其它终端设备所使用的正交 码发生冲突， 与现有技术相比， 避免了响应寻呼的终端设备之间以及响应寻呼 短了响应寻呼的时延。 附图说明
图 1为现有技术 IEEE 802.20协议中的超帧结构示意图；
图 2为现有技术 IEEE802.20协议中的快速寻呼和完整寻呼消息示意图； 图 3为现有技术中寻呼消息在 F-DCH块中各字段组成图；
图 4为现有技术中 PageUATI消息格式图；
图 5为现有技术中同一时刻不同响应寻呼的终端设备和响应寻呼的终端设 备与初始呼叫的终端设备之间的碰撞示意图；
图 6为本发明实施例 1的流程示意图；
图 7为本发明实施例 3的不同的超帧与正交码的对应关系示意图； 图 8为本发明实施例 3的流程示意图；
图 9为本发明实施例 4始呼的终端设备收听快速寻呼消息示意图； 图 10为本发明实施例 5的系统结构示意图。 具体实施方式
下面结合说明书附图来说明本发明的具体实施方式。
实施例 1 :
如图 6所示， 是本发明实施例 1的流程示意图， 从图中可见， 主要包括以 下步骤：
S610、 网络侧向终端设备发送寻呼消息；
当网络侧寻呼终端设备时， 向所述终端设备发送寻呼消息， 该寻呼消息格 式符合前述现有 IEEE802.20协议的相关要求。
S620、终端设备按照预设规则， 确定与当前系统接入使用相异的正交码信 is ·
该步骤中， 终端设备才艮据预设的规则， 确定一个当前系统没有使用的正交 码。
该预设规则可以有多种， 比如终端设备可以根据其寻呼消息所处的位置及 寻呼消息所在的系统时间， 确定本次接入所使用的正交码。
所述所使用的正交码， 与当前正在使用的正交码相异。 这样可以保证响应 寻呼的终端设备发起接入时所使用的正交码与当前系统中始呼的终端设备所 使用的正交码不同， 以保证接入的顺利进行。
本发明实施例 1的方案中，可以单独为响应寻呼的终端设备设定专用的正 交码资源， 终端设备从所述专用的正交码资源中确定所使用的正交码。 若响应 寻呼的终端设备未将可用的正交码资源占用完时，发起始呼的终端设备也可使 用未被占用的正交码资源。
上述方案中， 可以建立第一正交码资源与寻呼消息所处的位置及寻呼消息 所在的系统时间之间的对应关系。具体可将所述第一正交码资源中的正交码进 行编号， 并根据所述编号与用户标识以及当前系统超帧号模 4运算取值， 建立 所述对应关系。 这样在实际的终端设备接入过程中， 可以根据所述超帧号模 N 运算结果， 为所述终端设备确定使用正交码信息。
S630、终端设备用所述正交码信息获取对应的正交码， 使用该正交码调制 接入探针， 并向网络侧发送所述接入探针， 进行网^ ^矣入。
上述方案中， 还可以在步骤 S620中启动一个定时器；
而在步骤 S630中， 根据所述定时器设定的阔值， 中止终端设备使用所述 正交码。
实施例 2:
本发明实施例 2中，从所有可用的正交码资源中设定一部分来专门提供给 响应寻呼的终端设备在接入时使用， 并设定终端设备的计数器与专供响应寻呼 的正交码之间的对应关系 ,之后再根据终端设备可以使用的正交码的时限来设 置定时器。
该实施例 2在所有可用的正交码资源中分出 8个来给专门响应寻呼的终端 设备用， 比如索引号为 18-25的正交码， 并规定如表 1的对应关系。 其它的正 交码专供发起始呼的终端设备使用。 终端设备还需要增加计数器和定时器， 计 数器的初始状态为 0。 如图 2所示， 若在前向超帧 N中有多条快速寻呼消息， 则在超帧 N+1中发送完整的寻呼消息；在超帧 N+2中发送新的快速寻呼消息， 若有多于 1条的快速寻呼，则在超帧 N+3中发送超帧 N+2的详细的寻呼消息。 后续的超帧以此类推。因此若只为响应寻呼的终端设备设置 8个专用的正交码， 则在超帧 N+1时终端设备根据表 1 自主对应使用的专用正交码在超帧 N+3时 会被新的寻呼消息中的终端设备使用，因此超帧 N+1时终端设备使用自主对应 的正交码就有 2个超帧的时限， 否则将与 N+3时终端设备使用的正交码相同， 则会发生冲突。 因此若在 N+1 超帧被寻呼到的终端设备在反向超帧中若在 2 个超帧内已接入系统， 就不再需要正交码， 这样就不会发生正交码冲突； 若在 N+1超帧被寻呼到的终端设备在反向超帧中未能在 2个超帧内接入系统，就必 须规定 2个超帧的定时器。 而在定时器超时响应寻呼的终端设备仍未收到网络 侧的 Access Grant消息， 则响应寻呼的终端设备应从剩余留给发起初始呼叫的 正交码集合中选择正交码进行接入。
表 1终端设备计数器的值与正交码索引号之间的对应关系
Figure imgf000008_0001
实施例 3:
实施例 3中，设定一个终端设备计数器值与当前系统超帧号模 4取值结果 以及使用正交码的对应关系列表， 在终端设备接收到系统侧发送的寻呼消息 后， 根据上述对应关系列表， 确定终端设备本次接入所使用的正交码。
实施例 3在所有可用的正交码资源中分出 16个来给专门响应寻呼的终端 设备用， 比如索引号为 18-33的正交码， 并规定如表 2的对应关系。 其它的正 交码专供发起始呼的终端设备使用。 终端设备还需要增加计数器和定时器， 计 数器的初始状态为 0。 如图 7所示， 若在前 超帧 N中有多条快速寻呼消息， 则在超帧 N+1中发送完整的寻呼消息；在超帧 N+2中发送新的快速寻呼消息， 若有多于 1条的快速寻呼，则在超帧 N+3中发送超帧 N+2的详细的寻呼消息。 后续的超帧以此类推。 因此若为响应寻呼的终端设备设置 16个专用的正交码， 在超帧 N+3 时新的寻呼消息中的终端设备可使用的专用正交码是 26-33共 8 个， 而在超帧 N+4时 18-25号的正交码将被新的寻呼消息中的终端设备重用， 因此超帧 N+1时终端设备使用自主对应的正交码就有 4个超帧的时限，否则将 与 N+5时终端设^吏用的正交码相同， 则会发生冲突。 因此若在 N+1超帧被 寻呼到的终端设备在反向超帧中若在 4个超帧内已接入系统， 就不再需要正交 码，这样就不会发生正交码冲突；若在 N+1超帧被寻呼到的终端设备在反向超 帧中未能在 4个超帧内接入系统， 就必须规定 4个超帧的定时器。 而在定时器 超时响应寻呼的终端设备仍未收到网络側的接入许可 Access Grant消息， 则响 应寻呼的终端设备应从剩余留给发起初始呼叫的正交码集合中选择正交码进 行接入。
对于这种情况， 由于在超帧 N和 N+2时可以使用不同的正交码资源， 到 N+4和 N+6时再重复， 因此如图 7所示， 为了区别超帧 N和 N+2, 可以使用 的一种方法是用取模的方法。 即用超帧号模 4， 若模的结果等于 0则可用的资 源是 18-25的正交码； 若模的结果是 2， 则可用的资源是 26-33的正交码。
表 2终端设备计数器的值与正交码索引号之间的对应关系 计数器的值 超帧 N中对应的快速寻呼消 计数器的 超帧 N+2中对应的快速寻呼 息可用的正交码索引号（超帧 值 消息可用的正交码索引号 号模 4的值为 0 ) (超帧号模 4的值为 2 )
1 18 1 26
2 19 2 27
3 20 3 28
4 21 4 29
5 22 5 30
6 23 6 31
7 24 7 32
8 25 8 33 如图 7所示， 是实施例 3的不同的超帧与正交码的对应关系示意图。
如图 8所示， 是实施例 3的流程示意图， 从图 8中可见， 实施例 3包括以 下步骤：
5801、 每个终端设备中需要增加一个计数器， 计数器初始状态为 0;
5802、 若网络侧在主要广播信道 pBCHl 中发送了多条快速寻呼消息， 终 端设备到下一超帧的 F-DCH块中接收相应的完整寻呼消息。 终端设备对收到 寻呼消息包中包含的多个 ATIRecord进行计数并与终端设备自身的 UATI匹配； 或者将终端设备对收到的广播寻呼消息 PageUATI进行计数并与终端设备自身 的 UATI相匹配；
实施例 3 中， 是针对网络侧发送多条寻呼消息的方案， 如果网络侧在 pBCHl中仅发送了一条寻呼消息，则匹配上此寻呼消息的终端设备中的计数器 计 1 , 即响应寻呼的终端设备使用表一中对应的正交码索引号为 18或 26的正 交码发随机接入； 而未匹配上此寻呼消息的终端设备计数器清零。
当终端设备在 F-DCH的相应的块中收到寻呼消息包时， 消息包中包含多 个 ATIRecord, 每读到一条 ATIRecord则计数器加 1直到读到与终端设备自身 的 UATI相匹配的 ATIRecord记录为止；
或者当终端设备在 F-DCH中收到 PageUATI消息，或既有包含多条寻呼消 息的寻呼包又有单条寻呼消息的 PageUATI消息时， 每读到一条寻呼消息则计 数器加 1直到读到与终端设备自身的 UATI相匹配的寻呼消息为止； 如果终端设备没有从网络侧的寻呼消息中匹配到与自身的 UATI相同的消 息， 即在此寻呼消息中没有发给终端设备的寻呼， 则终端设备的计数器清零。
5803、 终端设备用当前系统的超帧号 mod 4;
5804、 根据所述计算结果， 自表 2中查出对应的正交码的索引号； 根据步骤 S802中的计数器的值（决定表 2中的行的值）和上面步骤 S803 中算出的值（决定表 2中的列的值）从表 2中查出对应的正交码的索引号；
5805、 将终端设备中的计数器清零；
S806、 用该索引号对应的正交码调制随机接入探针；
5807、 将定时器的初始状态置为： 4个超帧的时间， 在发送第一个随机接 入探^"的同时启动定时器；
5808、 根据定时器的计时对所述正交码的使用状态进行设置；
如果在定时器超时前， 响应寻呼的终端设备已收到网络侧的 Access Grant 消息， 则定时器清零；
如果直到定时器超时响应寻呼的终端设备仍未收到网络侧的 Access Grant 消息， 则定时器清零； 且终端设备不能再使用相应的正交码， 必须到始呼终端 设备可用的正交码集合中选取正交码来进行随机接入。
实施例 4:
实施例 4给响应寻呼的终端设备设置专门的正交码，但与实施例 2有所不 同。 即发起初始呼叫的终端设备在随机接入前需收听前向超帧前导中的快速寻 呼消息，如图 9所示，是实施例 4中始呼的终端设备收听快速寻呼消息示意图， 在收听到前向超帧 N中有 4条快速寻呼消息，则默认为 18-21号的正交码留给 响应寻呼的终端设备使用， 则始呼的终端设备从 22 以后的索引号开始选择正 交码进行接入。 如实施例 2 中一样会有 2个超帧的使用期限， 即在超帧 N+2 结束前， 应该完成始呼终端设备的随机接入， 否则应转入初始呼叫的终端设备 应该使用的正交码集合中选择正交码进行接入。 实施例 5:
如图 10所示， 是本发明实施例 5的终端设备接入系统的示意图， 从图中 可见， 该系统包括为终端设备 1010进行接入的网络侧， 该系统还包括：
寻呼消息发送单元 1021 ,位于所述网络侧，用于向终端设备发送寻呼消息； 用正交码信息确定单元 1011 , 可以位于所述终端设备 1010, 也可以位于 其他位置， 用于根据预设的规则确认本次接入所使用的正交码信息， 比如根据 终端设备标识信息及系统超帧信息等， 确定本次接入所使用正交码信息；
网络接入单元 1012， 可以位于所述终端设备 1010, 也可以位于其他位置， 用于根据所述正交码调制接入探针， 并向网络侧发送所述接入探针， 进行网络 接入。
所述系统还包括：
正交码信息存储单元 1013,用于存储预设的正交码确定规则， 比如预设建 立正交码资源与寻呼消息所处的位置及寻呼消息所在的系统时间之间的对应 关系。
所述系统， 还包括：
计数器单元 1014， 位于所述终端设备 1010, 也可以位于其他位置， 用于 对接收到的物理帧 F-DCH寻呼消息中包含的 ATIRecord个数和 PageUATI消息 的个数进行计数。
所述的系统， 还包括：
定时器单元 1015， 位于所述终端设备 1010， 也可以位于其他位置， 用于 设定阈值。
在上述实施例中，调制接入探针的正交码也可以通过正交码信息与其他信 息的组合或变化而获得， 比如与终端设备的导频强度相关， 也可以与寻呼消息 中的有关信息相关， 也可能与这些信息的组合或变形而得出的公式相关。
本发明实施例方案中， 通过在终端设备选择唯一的接入正交码， 可以保证 发起初始呼叫的终端设备所使用的正交码不同， 即可保证响应寻呼的终端设备 所使用 正交码一定与其它终端设备所使用的正交码发生冲突， 与现有技术相 端设备之间同时选用相同的正交码而造成冲突， 可有效缩短响应寻呼的时延。
而且由于响应寻呼的终端设备所使用的正交码一定不会沖突， 因此在随机 控制段都允许响应寻呼的终端设备发送随机接入探针， 因此可以进一步缩短响 应寻呼的时延。 明的精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要求及 其等同技术的范围之内， 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种终端设备接入方法， 其特征在于， 包括：
网络侧向终端设备发送寻呼消息；
终端设备按照预设规则， 确定与当前系统接入使用相异的正交码信息； 终端设备根据所述正交码信息获取对应的正交码， 并根据所述正交码调制 接入探针；
终端设备向网络侧发送所述接入探针， 进行网络接入。
2、 如权利要求 1 所述的方法， 其特征在于， 所述预设规则， 是从第一正 交码资源中选取正交码信息。
3、 如权利要求 1或 2所述的方法， 其特征在于，
所述正交码信息是正交码索引， 所述终端设备根据所述正交码索引， 获取 对应的正交码。
4、 如权利要求 1 所述的方法， 其特征在于， 所述预设规则是根据下述内 容之一或者组合确定所述正交码信息-.
寻呼消息的数量、 寻呼消息所处的位置、 寻呼消息所在的系统时间。
5、 如权利要求 4所述的方法， 其特征在于， 还包括建立第一正交码资源 与寻呼消息所处位置及寻呼消息所在的系统时间的对应关系。
6、 如权利要求 5所述的方法， 其特征在于， 将所述第一正交码资源进行 编号，根据所述编号建立所述第一正交码资源与寻呼消息所处的位置及寻呼消 息所在的系统时间之间的对应关系。
7、 如权利要求 6所述的方法， 其特征在于， 所述终端设备按照预设规则， 确定与当前系统接入使用相异的正交码信息， 进一步包括：
终端设 ^吏用当前系统的超帧号进行模 N运算；
根据所述超帧号模 N运算结果， 确定对应的正交码信息。
8、 如权利要求 7所述的方法， 其特征在于， 所述终端设备根据所述正交 码信息获取对应的正交码步骤中， 还包括终端设备根据设置的计数器， 对接收 到的多条寻呼消息进行计数， 并根据所述计数结果查找所述对应关系， 确定终 端设备使用的正交码。
9、 如权利要求 1所述的方法， 其特征在于，
所述终端设备按照预设规则，确定与当前系统接入使用相异的正交码信息 的步骤中， 还包括启动第一定时器；
所述终端设备向网络侧发送所述接入探针， 进行网络接入的步骤中， 根据 第一定时器设定的阔值， 中止终端设备使用所述正交码。
10、 一种终端设备接入系统， 由终端设备响应网络侧发送的寻呼消息， 其 特征在于， 包括：
寻呼消息发送单元， 用于向终端设备发送寻呼消息；
正交码信息确定单元， 用于按照预设规则， 确定与当前系统接入使用相异 的正交码信息；
网络接入单元， 用于根据所述正交码调制接入探针， 并向网络侧发送所述 接入探针， 进行网络接入。
11、 如权利要求 10所述的系统， 其特征在于， 还包括：
正交码信息存储单元， 存储预设的正交码确认所需规则。
12、 如权利要求 11所述的系统， 其特征在于， 还包括：
计数器单元， 用于对接收到的寻呼消息进行计数。
13、 如权利要求 11所述的系统， 其特征在于， 还包括：
定时器单元， 用于设定阔值。
PCT/CN2007/001680 2006-05-24 2007-05-24 Procédé et système d'accès à un terminal WO2007134546A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/276,741 US8229474B2 (en) 2006-05-24 2008-11-24 Method and system for terminal access

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2006100784141A CN100499869C (zh) 2006-05-24 2006-05-24 一种终端设备接入方法及系统
CN200610078414.1 2006-05-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/276,741 Continuation US8229474B2 (en) 2006-05-24 2008-11-24 Method and system for terminal access

Publications (1)

Publication Number Publication Date
WO2007134546A1 true WO2007134546A1 (fr) 2007-11-29

Family

ID=38722962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/001680 WO2007134546A1 (fr) 2006-05-24 2007-05-24 Procédé et système d'accès à un terminal

Country Status (3)

Country Link
US (1) US8229474B2 (zh)
CN (1) CN100499869C (zh)
WO (1) WO2007134546A1 (zh)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2247146B1 (en) 2005-12-14 2011-11-16 Research In Motion Limited Method and apparatus for user equipment directed radio resource control in a UMTS network
ES2353609T3 (es) 2006-05-17 2011-03-03 Research In Motion Limited Método y sistema para una indicación de liberación de conexión de señalización en una red umts.
US20080049662A1 (en) * 2006-08-25 2008-02-28 Research In Motion Limited Apparatus, and associated method, for releasing a data-service radio resource allocated to a data-service-capable mobile node
EP2387283B1 (en) 2007-11-13 2018-11-28 BlackBerry Limited Method and apparatus for state/mode transitioning
CA2743128C (en) * 2008-11-10 2016-04-19 Research In Motion Limited Method and apparatus of transition to a battery efficient state or configuration by indicating end of data transmission in long term evolution
WO2010137914A2 (ko) * 2009-05-28 2010-12-02 엘지전자 주식회사 무선 통신 시스템에서 상향링크 제어 채널 전송 방법 및 장치
KR101417550B1 (ko) 2009-11-23 2014-07-08 블랙베리 리미티드 Ｓｒｉ 메시지 송신에 의거한 상태 또는 모드 전이 트리거링
WO2011060997A1 (en) 2009-11-23 2011-05-26 Research In Motion Limited Method and apparatus for state/mode transitioning
AU2010320843B2 (en) * 2009-11-23 2014-07-10 Blackberry Limited Method and apparatus for state/mode transitioning
JP5583225B2 (ja) * 2009-11-24 2014-09-03 ブラックベリー リミテッド 状態／モード遷移のための方法および装置
US8983532B2 (en) * 2009-12-30 2015-03-17 Blackberry Limited Method and system for a wireless communication device to adopt varied functionalities based on different communication systems by specific protocol messages
KR101804919B1 (ko) 2010-01-21 2017-12-05 엘지전자 주식회사 1ｘ 메시지 번들링
CN102307389B (zh) * 2011-08-18 2017-08-25 南京中兴软件有限责任公司 一种发送寻呼消息的方法及装置
WO2013071145A1 (en) 2011-11-11 2013-05-16 Research In Motion Limited Method and apparatus for user equipment state transition
US9955510B2 (en) * 2013-07-08 2018-04-24 Electronics And Telecommunications Research Institute Method and terminal for distributed access
US9811495B2 (en) * 2014-08-27 2017-11-07 Lattice Semiconductor Corporation Arbitration signaling within a multimedia high definition link (MHL 3) device
US10045394B2 (en) 2015-05-04 2018-08-07 Qualcomm Incorporated Techniques for paging in extended discontinuous reception
US10110420B1 (en) * 2016-08-29 2018-10-23 Amazon Technologies, Inc. Orthogonal encoding of diagnostic information in a computer network
CN113630798B (zh) * 2020-05-06 2023-11-10 中国电信股份有限公司 寻呼冲突解决方法、用户设备和通信网络设备

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494228A (en) * 1982-08-12 1985-01-15 The United States Of America As Represented By The Secretary Of The Army Orthogonal code division multiple access communications systems
CN1533203A (zh) * 2003-03-18 2004-09-29 大唐移动通信设备有限公司 一种用于检测多用户终端随机接入冲突的方法
CN1553715A (zh) * 2003-05-27 2004-12-08 中国科学技术大学 一种在扩频分组网络中基于多包接收的信道接入方法
WO2005008937A2 (en) * 2003-07-10 2005-01-27 Qualcomm Incorporated Method and apparatus for reducing access latency in a wireless communication system
US20050220057A1 (en) * 1999-06-01 2005-10-06 Peter Monsen Multiple access system and method for multibeam digital radio systems
US20060040702A1 (en) * 1998-10-15 2006-02-23 Serge Willenegger Reservation multiple access
WO2006099577A1 (en) * 2005-03-16 2006-09-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system
EP1746795A2 (en) * 1992-03-05 2007-01-24 Qualcomm, Incorporated Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6912211B2 (en) 2001-01-26 2005-06-28 At&T Corp. CDMA to packet-switching interface for code division switching in a terrestrial wireless system
US6665283B2 (en) * 2001-08-10 2003-12-16 Motorola, Inc. Method and apparatus for transmitting data in a packet data communication system
US7848305B2 (en) * 2005-02-03 2010-12-07 Qualcomm Incorporated Techniques for accessing a wireless communication system with tune-away capability

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494228A (en) * 1982-08-12 1985-01-15 The United States Of America As Represented By The Secretary Of The Army Orthogonal code division multiple access communications systems
EP1746795A2 (en) * 1992-03-05 2007-01-24 Qualcomm, Incorporated Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communications system
US20060040702A1 (en) * 1998-10-15 2006-02-23 Serge Willenegger Reservation multiple access
US20050220057A1 (en) * 1999-06-01 2005-10-06 Peter Monsen Multiple access system and method for multibeam digital radio systems
CN1533203A (zh) * 2003-03-18 2004-09-29 大唐移动通信设备有限公司 一种用于检测多用户终端随机接入冲突的方法
CN1553715A (zh) * 2003-05-27 2004-12-08 中国科学技术大学 一种在扩频分组网络中基于多包接收的信道接入方法
WO2005008937A2 (en) * 2003-07-10 2005-01-27 Qualcomm Incorporated Method and apparatus for reducing access latency in a wireless communication system
WO2006099577A1 (en) * 2005-03-16 2006-09-21 Qualcomm Incorporated Channel structures for a quasi-orthogonal multiple-access communication system

Also Published As

Publication number Publication date
US8229474B2 (en) 2012-07-24
CN101043740A (zh) 2007-09-26
CN100499869C (zh) 2009-06-10
US20090093262A1 (en) 2009-04-09

Similar Documents

Publication Publication Date Title
WO2007134546A1 (fr) Procédé et système d'accès à un terminal
JP7013498B2 (ja) データスケジューリング方法、基地局およびシステム
EP3528547B1 (en) Method for transmitting data, terminal device and network device
RU2739330C1 (ru) Произвольный доступ с переключением частей ширины полосы частот
JP6740130B2 (ja) 通信デバイスおよび方法
KR102310983B1 (ko) 랜덤 액세스 방법 및 장치
EP3397016B1 (en) Channel contention method and apparatus
CN109547947B (zh) 一种用户设备协作组建立的方法及装置
WO2014067048A1 (zh) 一种资源确定方法、基站及用户设备
WO2014023026A1 (zh) 随机接入方法、基站及终端
KR101805560B1 (ko) 채널 액세스를 위한 방법, 장치 및 시스템
WO2007082407A1 (fr) Procédé d'accès aléatoire pour équipement utilisateur dans un système de communication à accès multiple par répartition en code de synchronisation et dans le temps
JP2011515971A (ja) ランダムアクセス応答メッセージのグループｉｄ生成方法及びランダムアクセス方法
TWI575989B (zh) 應用於競爭協定下的無線通訊系統、無線通訊方法及無線通訊裝置
WO2012071681A1 (zh) 无线通信终端、无线通信基站和它们的通信方法，以及实现该通信方法的程序和存储该程序的介质
WO2015131358A1 (zh) 信道资源指示方法及装置
WO2010097021A1 (zh) 一种随机接入控制方法、系统及设备
WO2008025290A1 (fr) Système de communication mobile, dispositif et procédé d'accès aléatoire
WO2014089831A1 (zh) 随机接入方法及设备
Tseng et al. Design of Two-Step Random Access Procedure for URLLC Applications
WO2008040210A1 (fr) Procédé et système d'accès pour un utilisateur
WO2015109438A1 (zh) 数据传输方法及装置
EP3955686A1 (en) Resource allocation method, base station and terminal
US9326223B2 (en) Method and apparatus for system access
WO2021170032A1 (zh) 一种随机接入响应方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07721253

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07721253

Country of ref document: EP

Kind code of ref document: A1