WO2017166255A1

WO2017166255A1 - Method, device and system for sending physical random access channel (prach)

Info

Publication number: WO2017166255A1
Application number: PCT/CN2016/078226
Authority: WO
Inventors: 吴作敏; 官磊
Original assignee: 华为技术有限公司
Priority date: 2016-03-31
Filing date: 2016-03-31
Publication date: 2017-10-05
Also published as: CN108886811A; CN108886811B

Abstract

Disclosed are a method, device and system for sending a PRACH, which provide an implementation of transmitting the PRACH on a carrier of a frequency spectrum resource. The method comprises: an access network device sending first indication signalling within a first time period, wherein the first indication signalling comprises first PRACH resource indication information, the first PRACH resource indication information is used for indicating time domain position information about a first PRACH resource within a second time period, the first PRACH resource is configured for terminal devices under a cell served by the access network device, and the first indication signalling is physical layer signalling; and the access network device detecting a random access preamble sequence on the first PRACH resource within the second time period.

Description

发送物理随机接入信道PRACH的方法、设备及***Method, device and system for transmitting physical random access channel PRACH

技术领域Technical field

本发明涉及通信领域，并且更具体地，涉及发送物理随机接入信道PRACH的方法、设备及***。The present invention relates to the field of communications and, more particularly, to a method, apparatus and system for transmitting a physical random access channel PRACH.

背景技术Background technique

最开始的许可辅助接入长期演进(Licensed-Assisted Access Using LTE，LAA-LTE)***中，主要考虑下行传输。随着***的演进，在LAA-LTE中也需要考虑上行传输。由于LAA-LTE***中的布网场景中存在许可载波和LAA载波是非共站的场景，基站需要调度终端设备发送物理随机接入信道(Physical Random Access Channel，PRACH)来获得终端设备在免许可载波上的时间提前量(Timing Advance，TA)信息。另外，考虑到双连接场景，或独立LTE(Stand-alone Long Term Evolution，SA-LTE)场景，终端设备还需要发送PRACH进行随机接入。因此，终端设备需要在免许可频谱资源上发送PRACH。In the initial Licensed-Assisted Access Using LTE (LAA-LTE) system, downlink transmission is mainly considered. As the system evolves, uplink transmission also needs to be considered in LAA-LTE. The scenario in which the licensed carrier and the LAA carrier are non-co-located in the networked scenario in the LAA-LTE system, the base station needs to schedule the terminal device to send a physical random access channel (PRACH) to obtain the unlicensed carrier of the terminal device. Timing Advance (TA) information. In addition, the terminal device also needs to send a PRACH for random access in consideration of a dual connectivity scenario or a stand-alone Long Term Evolution (SA-LTE) scenario. Therefore, the terminal device needs to send the PRACH on the unlicensed spectrum resource.

当LTE***应用到免许可频谱的载波上时，使用帧结构3。帧结构3的一个帧内包括10个下行子帧，下行传输占用一个或多个连续的子帧。如果未来引入上行传输，上行传输也相应占用一个或多个连续的子帧。因此，帧结构3更像是灵活上下行配比的时分双工(Time Division Duplex，TDD)帧结构。由于设备在帧结构3上传输数据时，需要进行信道的侦听，如果根据现有的方式定义PRACH资源在一个无线帧内的位置，可能出现预定义的用于PRACH发送的资源上实际上传输的是下行数据的情况。因此，可见，现有技术中的发送PRACH的方法不再适用于免许可频谱资源的载波。 Frame structure 3 is used when the LTE system is applied to the carrier of the unlicensed spectrum. One frame of the frame structure 3 includes 10 downlink subframes, and the downlink transmission occupies one or more consecutive subframes. If an uplink transmission is introduced in the future, the uplink transmission also occupies one or more consecutive subframes. Therefore, the frame structure 3 is more like a Time Division Duplex (TDD) frame structure with flexible uplink and downlink ratio. Since the device needs to perform channel interception when transmitting data on the frame structure 3, if the location of the PRACH resource in one radio frame is defined according to the existing manner, a pre-defined resource for PRACH transmission may actually be transmitted. The situation is the downlink data. Therefore, it can be seen that the method of transmitting PRACH in the prior art is no longer applicable to the carrier of the unlicensed spectrum resource.

因此，希望提供一种在免许可频谱资源的载波上发送PRACH的方法。Therefore, it is desirable to provide a method of transmitting a PRACH on a carrier of an unlicensed spectrum resource.

发明内容Summary of the invention

本申请提供一种传输信息的方法，旨在为免许可频谱资源的载波上传输PRACH提供一种实现方式。The present application provides a method of transmitting information, which is intended to provide an implementation for transmitting PRACH on a carrier of a license-free spectrum resource.

第一方面，本申请提供一种发送PRACH的方法，该方法包括：接入网设备在第一时间段内发送第一指示信令，该第一指示信令中包括第一 PRACH资源指示信息，该第一PRACH资源指示信息用于指示该第一PRACH资源在第二时间段内的时域位置信息，该第一PRACH资源是为该接入网设备服务的小区下的终端设备配置的，该第一指示信令是物理层信令；该接入网设备在该第二时间段内的该第一PRACH资源上检测随机接入前导序列。In a first aspect, the present application provides a method for transmitting a PRACH, where the method includes: the access network device sends the first indication signaling in a first time period, where the first indication signaling includes the first a PRACH resource indication information, where the first PRACH resource indication information is used to indicate time domain location information of the first PRACH resource in a second time period, where the first PRACH resource is a terminal in a cell serving the access network device And configured by the device, the first indication signaling is physical layer signaling; the access network device detects a random access preamble sequence on the first PRACH resource in the second time period.

可选地，在第一方面的第一种可能的实现方式中，所述接入网设备在第一时间段内发送第一指示信令，包括：所述接入网设备在所述第一时间段内的子帧n上发送所述第一指示信令，n为大于或等于0的整数，其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；所述起始子帧与所述子帧n的偏移值为固定值；所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。Optionally, in a first possible implementation manner of the first aspect, the access network device sends the first indication signaling in a first time period, including: the access network device is in the first The first indication signaling is sent on the subframe n in the time range, where n is an integer greater than or equal to 0, where the subframe n and the starting subframe in the second time period meet the following conditions: At least one of the offset values of the start subframe and the last subframe of the downlink burst in which the subframe n is located is a fixed value; the offset of the start subframe from the subframe n The value is a fixed value; the starting subframe is a first uplink partial subframe after the subframe n+k, and the uplink partial subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1; The initial subframe is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.

可选地，在第一方面的第二种可能的实现方式中，所述接入网设备在第一时间段内发送第一指示信令，包括以下方式中的至少一种：所述接入网设备在一次下行突发中的第一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；所述接入网设备在一次下行突发中的最后一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；所述接入网设备在所述第一时间段内的发现参考信号DRS子帧上发送所述第一指示信令。Optionally, in a second possible implementation manner of the first aspect, the access network device sends the first indication signaling in a first time period, including at least one of the following manners: the access The network device sends the first indication signaling in a first subframe of a downlink burst, where the first time period is the one downlink burst; the access network device is in a downlink burst Sending the first indication signaling on a last subframe of the sending, where the first time period is the one downlink burst; and the access network device discovers the reference in the first time period The first indication signaling is sent on a signal DRS subframe.

可选地，在第一方面的第三种可能的实现方式中，所述方法还包括：所述接入网设备向第一终端设备发送第二指示信令，所述第二指示信令为终端设备专用信令，所述第一终端设备为所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：第二PRACH资源上承载的随机接入前导序列的序列标识；第二PRACH资源上承载的随机接入前导序列的格式；第二PRACH资源的时域位置信息；第二PRACH资源的频域位置信息，所述第二PRACH资源与所述第一PRACH资源不同，所述第二PRACH资源用于所述第一终端设备进行随机接入。Optionally, in a third possible implementation manner of the foregoing aspect, the method further includes: the access network device sends a second indication signaling to the first terminal device, where the second indication signaling is The terminal device-specific signaling, the first terminal device is one of the terminal devices in the cell served by the access network device, and the second indication signaling includes the second PRACH resource indication information, where the The second PRACH resource indication information includes at least one of the following information: a sequence identifier of a random access preamble sequence carried on the second PRACH resource; a format of the random access preamble sequence carried on the second PRACH resource; and a second PRACH resource Time domain location information; frequency domain location information of the second PRACH resource, the second PRACH resource is different from the first PRACH resource, and the second PRACH resource is used by the first terminal device to perform random access.

第二方面，本申请提供一种发送PRACH的方法，该方法包括：终端设备在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；所述终端设备在所述第二时间段内的所述第一PRACH资源上发送随机接入前导序列。In a second aspect, the application provides a method for sending a PRACH, where the method includes: setting a terminal Receiving the first indication signaling in the first time period, where the first indication signaling includes the first PRACH resource indication information, where the first PRACH resource indication information is used to indicate that the first PRACH resource is in the second Time domain location information in a time range, the first PRACH resource is configured by a terminal device in a cell that the access network device serves for the access network device, and the first indication signaling is physical layer signaling; The terminal device sends a random access preamble sequence on the first PRACH resource in the second time period.

可选地，在第二方面的第一种可能的实现方式中，所述终端设备在第一时间段内接收第一指示信令，包括：所述终端设备在所述第一时间段内的子帧n上接收所述第一指示信令，n为大于或等于0的整数，其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；所述起始子帧与所述子帧n的偏移值为固定值；所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。Optionally, in a first possible implementation manner of the second aspect, the terminal device receives the first indication signaling in the first time period, including: the terminal device is in the first time period The first indication signaling is received on the subframe n, where n is an integer greater than or equal to 0, wherein the subframe n and the starting subframe in the second time period satisfy at least one of the following conditions: The offset value of the start subframe and the last subframe in the downlink burst where the subframe n is located is a fixed value; the offset value of the start subframe and the subframe n is a fixed value. The starting subframe is a first uplink partial subframe after the subframe n+k, and the uplink partial subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1; the initiator The frame is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.

可选地，在第二方面的第二种可能的实现方式中，所述终端设备在第一时间段内接收第一指示信令，包括以下方式中的至少一种：所述终端设备在一次下行突发中的第一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；所述终端设备在一次下行突发中的最后一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；所述终端设备在所述第一时间段内的发现参考信号DRS子帧上接收所述第一指示信令。Optionally, in a second possible implementation manner of the second aspect, the terminal device receives the first indication signaling in the first time period, including at least one of the following manners: the terminal device is once Receiving, by the first subframe in the downlink burst, the first indication signaling, where the first time period is the first downlink burst; and the terminal device is the last one of the downlink bursts Receiving, by the frame, the first indication signaling, where the first time period is the one downlink downlink burst; the terminal device receiving the discovery reference signal DRS subframe in the first time period The first indication signaling.

第三方面，本申请提供一种发送PRACH的方法，该方法包括：第一终端设备在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令。In a third aspect, the present application provides a method for transmitting a PRACH, where the method includes: receiving, by a first terminal device, a first indication signaling, where the first indication signaling includes a first PRACH resource indication information. The first PRACH resource indication information is used to indicate time domain location information of the first PRACH resource in a second time period, where the first PRACH resource is used by an access network device to serve the access network device. The first indication signaling configured by the terminal device in the cell is physical layer signaling.

可选地，在第三方面的第一种可能的实现方式中，所述第一终端设备在第一时间段内接收第一指示信令，包括：所述第一终端设备在所述第一时间段内的子帧n上接收所述第一指示信令，n为大于或等于0的整数，其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；所述起始子帧与所述子帧n的偏移值为固定值；所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。Optionally, in a first possible implementation manner of the third aspect, the first terminal device receives the first indication signaling in the first time period, including: the first terminal device is in the first The first indication signaling is received on the subframe n in the time period, where n is an integer greater than or equal to 0, where The subframe n and the start subframe in the second time period satisfy at least one of the following conditions: the start subframe and the last subframe of the downlink burst where the subframe n is located The offset value is a fixed value; the offset value of the start subframe and the subframe n is a fixed value; and the start subframe is the first uplink subframe after the subframe n+k, The uplink partial subframe is a subframe in which at least one symbol is not used for uplink transmission, and k≥1; the initial subframe is a first uplink complete subframe after the subframe n+k, and the uplink complete subframe is All symbols in one subframe are used for uplink subframes of uplink transmission, k≥1.

可选地，在第三方面的第二种可能的实现方式中，所述第一终端设备在第一时间段内接收第一指示信令，包括以下方式中的至少一种：所述第一终端设备在一次下行突发中的第一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；所述第一终端设备在一次下行突发中的最后一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；所述第一终端设备在所述第一时间段内的发现参考信号DRS子帧上接收所述第一指示信令。Optionally, in a second possible implementation manner of the third aspect, the first terminal device receives the first indication signaling in the first time period, including at least one of the following manners: the first The terminal device receives the first indication signaling in a first subframe of a downlink burst, where the first time period is the one downlink burst; the first terminal device is in a downlink downlink Receiving the first indication signaling in a last subframe of the sending, where the first time period is the one downlink burst; the first terminal device is found in the first time period The first indication signaling is received on a signal DRS subframe.

可选地，在第三方面的第三种可能的实现方式中，所述方法还包括：所述第一终端设备接收所述接入网设备发送的第二指示信令，所述第二指示信令为终端设备专用信令，所述第一终端设备所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：第二PRACH资源上承载的随机接入前导序列的序列标识；第二PRACH资源上承载的随机接入前导序列的格式；第二PRACH资源的时域位置信息；第二PRACH资源的频域位置信息，其中，所述第二PRACH资源与所述第一PRACH资源不同，所述第二PRACH资源用于所述第一终端设备进行随机接入；所述第一终端设备在所述第二PRACH资源上发送第三随机接入前导序列。Optionally, in a third possible implementation manner of the third aspect, the method further includes: receiving, by the first terminal device, the second indication signaling sent by the access network device, where the second indication The signaling is the terminal device-specific signaling, the first terminal device is one of the terminal devices in the cell served by the access network device, and the second indication signaling includes the second PRACH resource indication information, where The second PRACH resource indication information includes at least one of the following information: a sequence identifier of a random access preamble sequence carried on the second PRACH resource; a format of a random access preamble sequence carried on the second PRACH resource; and a second PRACH The time domain location information of the resource; the frequency domain location information of the second PRACH resource, wherein the second PRACH resource is different from the first PRACH resource, and the second PRACH resource is used by the first terminal device to perform random The first terminal device sends a third random access preamble sequence on the second PRACH resource.

第四方面，本申请提供一种通信***，该通信***包括第一方面中的接入网设备、第二方面中的终端设备。可选地，该通信***还包括第三方面中的第一终端设备。In a fourth aspect, the present application provides a communication system, including the access network device in the first aspect, and the terminal device in the second aspect. Optionally, the communication system further comprises the first terminal device in the third aspect.

在某些实现方式中，所述时域位置信息包括以下情况中的至少一种：所述第一PRACH资源在所述第二时间段内是否存在的信息；所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；所述第一PRACH资源在所述第二时间段内所在符号的位置信息。 In some implementations, the time domain location information includes at least one of the following information: whether the first PRACH resource exists in the second time period; the first PRACH resource is in the Location information of the subframe in the second time period; location information of the symbol in which the first PRACH resource is located in the second time period.

在某些实现方式中，所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。In some implementations, the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.

在某些实现方式中，所述第一PRACH资源占用的频域位置包括以下情况中的至少一种：In some implementations, the frequency domain location occupied by the first PRACH resource includes at least one of the following conditions:

***带宽包括100个RB，将所述100个RB从1编号至100，所述第一PRACH资源占用的资源块RB的编号为10、11、12、13、14、15、86、87、88、89、90、91；The system bandwidth includes 100 RBs, and the 100 RBs are numbered from 1 to 100, and the number of resource blocks RB occupied by the first PRACH resource is 10, 11, 12, 13, 14, 15, 86, 87, 88. , 89, 90, 91;

***带宽包括50个RB，将所述50个RB从1编号至50，所述第一PRACH资源占用的资源块RB的编号为5、6、7、8、9、10、41、42、43、44、45、46。The system bandwidth includes 50 RBs, and the 50 RBs are numbered from 1 to 50, and the resource blocks RB occupied by the first PRACH resource are numbered 5, 6, 7, 8, 9, 10, 41, 42, 43 44, 45, 46.

在某些实现方式中，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。In some implementations, the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where the time domain location information is indicated by the configuration index, The configuration index is further used to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and a random access wireless The network temporarily identifies at least one of the RA-RNTIs, wherein the generation parameters of the root sequence are used to generate a root sequence of the random access preamble sequence.

在某些实现方式中，所述第一指示信令中还包括以下信息中的至少一项：所述第一PRACH资源上承载的随机接入前导序列的格式；所述第一PRACH资源的频域位置；零相关区配置参数；根序列的生成参数，用于生成所述随机接入前导序列的根序列；随机接入无线网络临时标识RA-RNTI。In some implementations, the first indication signaling further includes at least one of the following information: a format of a random access preamble sequence carried on the first PRACH resource; a frequency of the first PRACH resource a domain location; a zero-correlation zone configuration parameter; a root sequence generation parameter, used to generate a root sequence of the random access preamble sequence; and a random access radio network temporary identifier RA-RNTI.

在某些实现方式中，所述第一PRACH资源包括第一资源块RB和第二RB，其中，所述第一RB与所述第二RB之间的频域间隔大于或等于预设频域间隔。In some implementations, the first PRACH resource includes a first resource block RB and a second RB, where a frequency domain interval between the first RB and the second RB is greater than or equal to a preset frequency domain. interval.

第四方面，本申请提供一种传输PRACH的接入网设备，用于执行第一方面或第一方面的任意可能的实现方式中的方法。具体地，该接入网设备包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的单元。In a fourth aspect, the application provides an access network device for transmitting a PRACH, for performing the method in the first aspect or any possible implementation manner of the first aspect. In particular, the access network device comprises means for performing the method of the first aspect or any of the possible implementations of the first aspect.

第五方面，本申请提供一种传输PRACH的终端设备，用于执行第二方面或第二方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的单元。In a fifth aspect, the application provides a terminal device for transmitting PRACH, which is used to perform the method in any of the possible implementations of the second aspect or the second aspect. In particular, the terminal device comprises means for performing the method of any of the second aspect or any of the possible implementations of the second aspect.

第六方面，本申请提供一种传输PRACH的终端设备，用于执行第三方面或第三方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行第三方面或第三方面的任意可能的实现方式中的方法的单元。In a sixth aspect, the application provides a terminal device for transmitting PRACH, which is used to execute a third party. A method in any of the possible implementations of the third aspect. In particular, the terminal device comprises means for performing the method of any of the third aspect or any of the possible implementations of the third aspect.

第七方面，本申请提供一种传输PRACH的接入网设备，该设备包括：总线***、处理器收发器和存储器。其中，收发器、存储器和处理器通过总线***相连，存储器用于存储指令，处理器用于执行存储器存储的指令，以控制收发器收发信号，并且当处理器执行存储器存储的指令时，使得处理器执行第一方面或第一方面的任意可能的实现方式中的方法。In a seventh aspect, the application provides an access network device for transmitting a PRACH, the device comprising: a bus system, a processor transceiver, and a memory. Wherein the transceiver, the memory and the processor are connected by a bus system, the memory is for storing instructions, the processor is for executing instructions stored by the memory to control the transceiver to send and receive signals, and when the processor executes the instructions stored in the memory, the processor is Performing the method of the first aspect or any possible implementation of the first aspect.

第八方面，本申请提供一种传输PRACH的终端设备，该终端设备包括：总线***、处理器收发器和存储器。其中，收发器、存储器和处理器通过总线***相连，存储器用于存储指令，处理器用于执行存储器存储的指令，以控制收发器收发信号，并且当处理器执行存储器存储的指令时，使得处理器执行第二方面或第二方面的任意可能的实现方式中的方法。In an eighth aspect, the application provides a terminal device for transmitting PRACH, the terminal device comprising: a bus system, a processor transceiver, and a memory. Wherein the transceiver, the memory and the processor are connected by a bus system, the memory is for storing instructions, the processor is for executing instructions stored by the memory to control the transceiver to send and receive signals, and when the processor executes the instructions stored in the memory, the processor is Performing the method of the second aspect or any possible implementation of the second aspect.

第九方面，本申请提供一种传输PRACH的终端设备，该终端设备包括：总线***、处理器收发器和存储器。其中，收发器、存储器和处理器通过总线***相连，存储器用于存储指令，处理器用于执行存储器存储的指令，以控制收发器收发信号，并且当处理器执行存储器存储的指令时，使得处理器执行第三方面或第三方面的任意可能的实现方式中的方法。In a ninth aspect, the application provides a terminal device for transmitting a PRACH, the terminal device comprising: a bus system, a processor transceiver, and a memory. Wherein the transceiver, the memory and the processor are connected by a bus system, the memory is for storing instructions, the processor is for executing instructions stored by the memory to control the transceiver to send and receive signals, and when the processor executes the instructions stored in the memory, the processor is The method of any of the third aspect or any of the possible implementations of the third aspect is performed.

第十方面，本申请提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第一方面或第一方面的任意可能的实现方式中的方法的指令。In a tenth aspect, the application provides a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of the first aspect or any of the possible implementations of the first aspect.

第十一方面，本申请提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第二方面或第二方面的任意可能的实现方式中的方法的指令。In an eleventh aspect, the present application provides a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the second aspect or any of the possible implementations of the second aspect.

第十二方面，本申请提供一种计算机可读介质，用于存储计算机程序，该计算机程序包括用于执行第三方面或第三方面的任意可能的实现方式中的方法的指令。In a twelfth aspect, the present application provides a computer readable medium for storing a computer program, the computer program comprising instructions for performing the method of any of the third aspect or any of the possible implementations of the third aspect.

附图说明DRAWINGS

为了更清楚地说明本发明实施例的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, do not pay for creation On the premise of sex work, other drawings can also be obtained from these drawings.

图1是适用本发明实施例的发送PRACH的方法的应用场景。FIG. 1 is an application scenario of a method for transmitting a PRACH according to an embodiment of the present invention.

图2a示出了一次下行突发或一次上行突发的示意图。Figure 2a shows a schematic diagram of one downlink burst or one uplink burst.

图2b示出了一个PRACH资源占用的频域资源的一种方式。Figure 2b illustrates one way of frequency domain resources occupied by a PRACH resource.

图2c示出了一个PRACH资源占用的频域资源的另一种方式Figure 2c shows another way of frequency domain resources occupied by a PRACH resource

图2d示出了一个PRACH资源占用的频域资源的又一种方式。Figure 2d shows yet another way of frequency domain resources occupied by a PRACH resource.

图3是根据本发明实施例的发送PRACH的方法的示意***互图。FIG. 3 is a schematic interaction diagram of a method of transmitting a PRACH according to an embodiment of the present invention.

图4a示出了第一时间段和第二时间段的关系的示意图。Figure 4a shows a schematic diagram of the relationship between the first time period and the second time period.

图4b示出了随机接入前导序列的格式0和格式4在一个正常循环前缀子帧里的映射示意图。Figure 4b shows a schematic diagram of the mapping of format 0 and format 4 of the random access preamble sequence in a normal cyclic prefix subframe.

图5是根据本发明一实施例的接入网设备的示意性框图。FIG. 5 is a schematic block diagram of an access network device according to an embodiment of the present invention.

图6是根据本发明另一实施例的终端设备的示意性框图。FIG. 6 is a schematic block diagram of a terminal device according to another embodiment of the present invention.

图7是根据本发明再一实施例的终端设备的示意性框图。FIG. 7 is a schematic block diagram of a terminal device according to still another embodiment of the present invention.

图8是根据本发明一实施例的接入网设备的示意性结构图。FIG. 8 is a schematic structural diagram of an access network device according to an embodiment of the present invention.

图9是根据本发明另一实施例的终端设备的示意性结构图。FIG. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.

图10是根据本发明再一实施例的终端设备的示意性结构图。FIG. 10 is a schematic structural diagram of a terminal device according to still another embodiment of the present invention.

具体实施方式detailed description

下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

本发明结合终端设备描述了各个实施例，终端设备可称之为用户设备(User Equipment，UE)、终端(Terminal)、移动台(Mobile Station，MS)、移动终端(Mobile Terminal)等。在本发明实施例中，终端设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信。例如，终端设备可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等。例如，终端设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置以及未来5G网络中的终端设备，它们与无线接入网交换语音和/或数据。The present invention describes various embodiments in conjunction with a terminal device. The terminal device may be referred to as a User Equipment (UE), a Terminal (Terminal), a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), and the like. In the embodiment of the present invention, the terminal device can communicate with one or more core networks via a Radio Access Network (RAN). For example, the terminal device may be a mobile phone (or "cellular" phone), a computer with a mobile terminal, or the like. For example, the terminal device can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device and a terminal device in a future 5G network that exchanges voice and/or data with the wireless access network.

另外，本发明结合接入网设备描述了各个实施例，接入网设备可以是 LTE***及其演进***，特别是LAA-LTE***或SA-LTE***中的演进型基站(Evolutional Node B，简称可以为eNB或e-NodeB)、宏基站、微基站(也称为“小基站”)、微微基站、接入站点(Access Point，AP)或传输站点(Transmission Point，TP)等。In addition, the present invention describes various embodiments in connection with an access network device, and the access network device may be LTE system and its evolved system, in particular, an evolved base station (Evolutional Node B, which may be an eNB or an e-NodeB), a macro base station, and a micro base station (also referred to as a "small base station" in the LAA-LTE system or the SA-LTE system. "), a pico base station, an access point (AP) or a transmission point (TP).

应理解，物理信道(physical channel)承载来自高层(higher layers)的数据信息。物理信道可以是物理下行信道或物理上行信道，其中，物理下行信道包括物理下行共享信道(Physical Downlink Shared CHannel，PDSCH)，物理下行控制信道(Physical Downlink Control CHannel，PDCCH)，物理控制格式指示信道(Physical Control Format Indicator CHannel，PCFICH)，物理混合重传指示信道(Physical Hybrid ARQ Indicator CHannel，PHICH)，增强物理下行控制信道(Enhanced-Physical Downlink Control CHannel，EPDCCH)，物理广播信道(Physical Broadcast CHannel，PBCH)，物理多播信道(Physical Multicast CHannel，PMCH)等。物理上行信道包括物理上行共享信道(Physical Uplink Shared CHannel，PUSCH)，物理上行控制信道(Physical Uplink Control CHannel，PUCCH)，物理随机接入信道(Physical Random Access CHannel，PRACH)等。或是标准中新引入的功能相同、但名称不同的信道。也可以是以上信道的组合。It should be understood that a physical channel carries data information from higher layers. The physical channel may be a physical downlink channel or a physical uplink channel, where the physical downlink channel includes a physical downlink shared channel (Physical Downlink Shared CHannel, PDSCH), a physical downlink control channel (Physical Downlink Control CHannel, PDCCH), and a physical control format indication channel ( Physical Control Format Indicator CHannel (PCFICH), Physical Hybrid ARQ Indicator CHannel (PHICH), Enhanced-Physical Downlink Control CHannel (EPDCCH), Physical Broadcast CHannel (PBCH) ), Physical Multicast CHannel (PMCH), etc. The physical uplink channel includes a physical uplink access channel (Physical Uplink Shared CHannel, PUSCH), a physical uplink control channel (Physical Uplink Control CHannel), a physical random access channel (Physical Random Access CHannel, PRACH), and the like. Or a new channel with the same function but different names. It can also be a combination of the above channels.

还应理解，在本发明实施例中，编号“第一”、“第二”仅仅为了区分不同的对象，例如为了区分不同的PRACH资源或不同的信令，不应对本发明实施例的保护范围构成任何限定。It should be understood that, in the embodiment of the present invention, the numbers "first" and "second" are only used to distinguish different objects, for example, to distinguish different PRACH resources or different signaling, and the scope of protection of the embodiments of the present invention should not be Form any limit.

当免许可频谱的载波上的LAA-LTE***支持上行传输时，相应的，终端设备应在该免许可频谱的载波上发送物理随机接入信道(Physical Random Access Channel，PRACH)来获得终端设备在免许可载波上的时间提前量(Timing Advance，TA)信息。另外，考虑到免许可频谱的载波上可能支持双连接场景，或未来***演进中的独立LTE(Stand-alone Long Term Evolution，SA-LTE)场景，终端设备还需要发送PRACH进行随机接入。因此，终端设备需要在免许可频谱资源上发送PRACH。When the LAA-LTE system on the carrier of the unlicensed spectrum supports uplink transmission, correspondingly, the terminal device should send a physical random access channel (PRACH) on the carrier of the unlicensed spectrum to obtain the terminal device. Timing Advance (TA) information on the unlicensed carrier. In addition, the terminal device needs to send a PRACH for random access, considering that the dual-connection scenario may be supported on the carrier of the unlicensed spectrum, or a stand-alone Long Term Evolution (SA-LTE) scenario in the future system evolution. Therefore, the terminal device needs to send the PRACH on the unlicensed spectrum resource.

支持免许可频谱资源传输的帧结构3更像是灵活上下行配比的时分双工TDD帧结构。由于设备在帧结构3上传输数据时，需要进行信道的侦听，如果根据现有的方式定义PRACH资源在一个无线帧内的位置，可能出现预定义的用于PRACH发送的资源上实际上传输的是下行数据的情况。可见，现有技术中的发送PRACH的方法不再适用于免许可频谱资源的载波。The frame structure 3 supporting the transmission of the unlicensed spectrum resource is more like a time division duplex TDD frame structure with flexible uplink and downlink ratio. Since the device needs to perform channel interception when transmitting data on the frame structure 3, if the location of the PRACH resource in one radio frame is defined according to the existing manner, a pre-defined resource for PRACH transmission may actually be transmitted. The situation is the downlink data. Visible, The method of transmitting PRACH in the prior art is no longer applicable to the carrier of the unlicensed spectrum resource.

为了便于理解，首先结合图1，简单介绍适用于本发明实施例的发送PRACH的方法的场景。For ease of understanding, first, a scenario of a method for transmitting a PRACH applicable to an embodiment of the present invention is briefly introduced in conjunction with FIG.

图1示出了根据本发明实施例的传输信息的方法的应用场景。如图1所示，场景中包括小区基站101、与小区基站101邻近的小区基站102和用户设备103。其中，用户设备103处于小于基站101的覆盖范围内并与小区基站101进行通信。小区基站101和用户设备103为支持在免许可频谱资源上进行通信的通信设备。小区基站102支持的频段可以与小区基站101相同，小区基站102可以是与小区基站101相同类型的通信设备，也可以是与小区基站101不同类型的通信设备。例如，小区基站101可以为LTE***的基站，对应地，用户设备103为LTE***的用户设备，小区基站102可以为LTE***的基站，也可以为无线保真(Wireless Fidelity，Wi-Fi)***的无线路由器、无线中继器、用户设备。在具体的通信过程中，用户设备103在通过免许可频谱的信道向小区基站102传输信号时，用户设备103需要获取免许可频谱的信道使用权，并遵循免许可频谱上资源使用对发射功率和带宽的限制要求。FIG. 1 illustrates an application scenario of a method of transmitting information according to an embodiment of the present invention. As shown in FIG. 1, the scenario includes a cell base station 101, a cell base station 102 adjacent to the cell base station 101, and a user equipment 103. The user equipment 103 is smaller than the coverage of the base station 101 and communicates with the cell base station 101. Cell base station 101 and user equipment 103 are communication devices that support communication over unlicensed spectrum resources. The frequency band supported by the cell base station 102 may be the same as the cell base station 101. The cell base station 102 may be the same type of communication device as the cell base station 101, or may be a communication device of a different type from the cell base station 101. For example, the cell base station 101 may be a base station of the LTE system, and correspondingly, the user equipment 103 is a user equipment of the LTE system, and the cell base station 102 may be a base station of the LTE system, or may be a wireless fidelity (Wi-Fi) system. Wireless routers, wireless repeaters, user equipment. In a specific communication process, when the user equipment 103 transmits a signal to the cell base station 102 through the channel of the unlicensed spectrum, the user equipment 103 needs to acquire the channel usage right of the unlicensed spectrum, and follows the resource usage on the unlicensed spectrum. Bandwidth requirements.

下面结合附图对本发明实施例的PRACH传输的方法进行详细描述。The method for PRACH transmission in the embodiment of the present invention is described in detail below with reference to the accompanying drawings.

首先，对一次下行突发或一次上行突发进行说明。下行突发是指接入网设备获得免许可频谱的载波上的信道使用权后用于下行信号传输的子帧。First, a downlink burst or an uplink burst is described. The downlink burst refers to a subframe used by the access network device to obtain the channel usage right on the carrier of the unlicensed spectrum and used for downlink signal transmission.

图2a示出了一次下行突发或一次上行突发的示意图。如图2a所示，一次下行突发包括一个或多个子帧，当一次下行突发包括的子帧的个数大于1时，一次下行突发中包括的子帧是连续的。Figure 2a shows a schematic diagram of one downlink burst or one uplink burst. As shown in FIG. 2a, one downlink burst includes one or more subframes. When the number of subframes included in one downlink burst is greater than 1, the subframes included in one downlink burst are consecutive.

可选地，一次下行突发中的第一个子帧是下行部分子帧。Optionally, the first subframe in one downlink burst is a downlink subframe.

可选地，一次下行突发中的最后一个子帧是下行部分子帧。其中，下行部分子帧是指至少一个符号不用于下行传输的下行子帧。Optionally, the last subframe in the one downlink burst is a downlink subframe. The downlink part subframe refers to a downlink subframe in which at least one symbol is not used for downlink transmission.

上行突发是指终端设备获得免许可频谱的载波上的信道使用权后用于上行信号传输的子帧。如图2a所示，一次上行突发包括一个或多个子帧，当一次上行突发包括的子帧的个数大于1时，一次上行突发中包括的子帧是连续的。The uplink burst refers to a subframe used for uplink signal transmission after the terminal device obtains the channel usage right on the carrier of the unlicensed spectrum. As shown in FIG. 2a, an uplink burst includes one or more subframes. When the number of subframes included in one uplink burst is greater than 1, the subframes included in one uplink burst are consecutive.

可选地，一次上行突发中的第一个子帧是上行部分子帧。 Optionally, the first subframe in one uplink burst is an uplink partial subframe.

可选地，一次上行突发中的最后一个子帧是上行部分子帧。其中，上行部分子帧是指至少一个符号不用于上行传输的上行子帧。Optionally, the last subframe in one uplink burst is an uplink partial subframe. The uplink partial subframe refers to an uplink subframe in which at least one symbol is not used for uplink transmission.

可选地，一次上行突发中包括一个子帧的情况下，该一个子帧可以是部分子帧。Optionally, in a case where one subframe is included in one uplink burst, the one subframe may be a partial subframe.

通常情况下，如图2a所示，一次下行突发后有一次上行突发。一次下行突发和一次上行突发之间有一定的时间资源用于上下行转换。Normally, as shown in Figure 2a, there is an uplink burst after a downlink burst. There is a certain time resource between the downlink burst and the uplink burst for the uplink and downlink conversion.

应理解，如果一个子帧中既有下行传输，也有上行传输，其中，该子帧中有一部分资源用于上下行转换，那么，该子帧的下行传输部分可以认为是一个下行部分子帧，该子帧的上行传输部分可以认为是一个上行部分子帧。即，既可以认为该子帧是一次下行突发的最后一个子帧，也可以认为该子帧是一次上行突发的第一个子帧。It should be understood that if there is a downlink transmission and an uplink transmission in a subframe, and a part of the resources in the subframe are used for uplink and downlink conversion, the downlink transmission part of the subframe may be regarded as a downlink subframe. The uplink transmission part of the subframe can be regarded as an uplink partial subframe. That is, the subframe may be considered to be the last subframe of a downlink burst, and the subframe may be considered to be the first subframe of an uplink burst.

一个PRACH资源是指终端设备在一次随机接入前导序列传输过程中占用的时域和频域的资源。A PRACH resource refers to a time domain and a frequency domain resource occupied by a terminal device during a random access preamble sequence transmission process.

现有技术中，一个PRACH资源在频域上占用连续的6个资源块(Resource Block，RB)。应理解，某些国家或地区规定了通信设备(例如，终端设备)在使用免许可频谱资源时，传输的信号占用***带宽的比例需要达到一定的阈值(例如，80％)。为了满足这个要求，可选地，一个PRACH资源包括第一RB和第二RB，其中，第一RB与第二RB之间的频域间隔大于或等于预设频域间隔。例如，对于20M带宽的***，第一RB的索引值与第二RB的索引值之间的差值应大于或等于88。In the prior art, one PRACH resource occupies six consecutive Resource Blocks (RBs) in the frequency domain. It should be understood that some countries or regions stipulate that when a communication device (for example, a terminal device) uses an unlicensed spectrum resource, the ratio of the transmitted signal occupying the system bandwidth needs to reach a certain threshold (for example, 80%). To meet this requirement, optionally, one PRACH resource includes a first RB and a second RB, where a frequency domain interval between the first RB and the second RB is greater than or equal to a preset frequency domain interval. For example, for a 20M bandwidth system, the difference between the index value of the first RB and the index value of the second RB should be greater than or equal to 88.

图2b示出了一个PRACH资源占用的频域资源的一种方式。如图2b所示，一个PRACH资源包括两个基本资源单元，其中，一个基本资源单元在频域上占用连续的6个RB。第一RB和第二RB分别为两个基本资源单元中的第一个RB，第一RB与第二RB之间的频域间隔大于或等于预设频域间隔。Figure 2b illustrates one way of frequency domain resources occupied by a PRACH resource. As shown in FIG. 2b, one PRACH resource includes two basic resource units, where one basic resource unit occupies six consecutive RBs in the frequency domain. The first RB and the second RB are respectively the first RB of the two basic resource units, and the frequency domain interval between the first RB and the second RB is greater than or equal to the preset frequency domain interval.

图2c示出了一个PRACH资源占用的频域资源的另一种方式。如图2c所示，***带宽被划分成N个频域单元，其中每个频域单元包括M个连续的RB。一个PRACH资源包括N个基本资源单元，其中，一个基本资源单元在频域上占用1个RB。该N个RB分别位于N个频域单元中，且每个频域单元中PRACH所占用的RB与该频域单元中的第一个RB的偏移值相同。第一RB和第二RB分别为第一个频域单元和第N个频域单元中的RB，第一RB与第二RB之间的频域间隔大于或等于预设频域间隔。 Figure 2c shows another way of frequency domain resources occupied by a PRACH resource. As shown in Figure 2c, the system bandwidth is divided into N frequency domain units, where each frequency domain unit includes M consecutive RBs. A PRACH resource includes N basic resource units, where one basic resource unit occupies 1 RB in the frequency domain. The N RBs are respectively located in the N frequency domain units, and the RBs occupied by the PRACH in each frequency domain unit are the same as the offset values of the first RB in the frequency domain unit. The first RB and the second RB are RBs in the first frequency domain unit and the Nth frequency domain unit, respectively, and the frequency domain interval between the first RB and the second RB is greater than or equal to a preset frequency domain interval.

可以理解的是，物理上行信道的传输都需要满足带宽占用的需求。另外为了提高资源利用率，应能允许多个物理上行信道在同一个子帧内复用传输。例如，PRACH，PUSCH，或PUCCH在同一个子帧内传输。一个可能的复用方法是将***带宽划分成N个频域单元，其中，每个频域单元包括M个连续的RB。将每个频域单元中与该频域单元中的第一个RB的偏移值相同的RB组成一个组，即***资源包括M个组，其中每个组包括N个RB。接入网设备以组为单位进行资源分配，一个PRACH或PUSCH或PUCCH占用至少一个组，从而实现不同的物理上行信道在同一个子帧内复用。It can be understood that the transmission of the physical uplink channel needs to meet the bandwidth occupation requirement. In addition, in order to improve resource utilization, it should be possible to allow multiple physical uplink channels to be multiplexed and transmitted in the same subframe. For example, PRACH, PUSCH, or PUCCH are transmitted in the same subframe. One possible multiplexing method is to divide the system bandwidth into N frequency domain units, where each frequency domain unit includes M consecutive RBs. The RBs in each frequency domain unit having the same offset value as the first RB in the frequency domain unit are grouped into one group, that is, the system resources include M groups, wherein each group includes N RBs. The access network device performs resource allocation in units of groups, and one PRACH or PUSCH or PUCCH occupies at least one group, so that different physical uplink channels are multiplexed in the same subframe.

例如，假设***带宽是20M，包括100个RB。将100个RB划分成10个频域单元，其中每个频域单元包括10个连续的RB。将每个频域单元中与该频域单元中的第一个RB的偏移值相同的RB组成一个组，即***资源包括10个组，其中每个组包括10个RB。可以理解的是，对于图2c所示的一个PRACH资源占用的频域资源的方式，可以实现PRACH或PUSCH或PUCCH在同一个子帧内复用。For example, suppose the system bandwidth is 20M, including 100 RBs. The 100 RBs are divided into 10 frequency domain units, each of which includes 10 consecutive RBs. The RBs in each frequency domain unit having the same offset value as the first RB in the frequency domain unit are grouped into one group, that is, the system resources include 10 groups, wherein each group includes 10 RBs. It can be understood that, for the manner of the frequency domain resource occupied by one PRACH resource shown in FIG. 2c, PRACH or PUSCH or PUCCH can be multiplexed in the same subframe.

对于图2b所示的一个PRACH资源占用的频域资源的方式，为了实现PRACH和PUSCH或PUCCH在同一个子帧内复用，可以采用图2d所示的方式。同样以20M***带宽划分成10个频域单元，每个频域单元包括10个连续的RB，每个频域单元中与该频域单元中的第一个RB的偏移值相同的RB为一个组，接入网设备以组为单位进行资源分配为例进行说明。一个PRACH资源包括两个基本资源单元，其中，一个基本资源单元在频域上占用连续的6个RB，具体为频域单元#1的第10个RB和频域单元#2的第1、2、3、4、5个RB。另一个基本资源单元在频域上也占用连续的6个RB，具体为频域单元#9的第6、7、8、9、10个RB和频域单元#10的第1个RB。接入网设备仍然可以分配第2、3、4、5、6、7、8、9组用于PUSCH或PUCCH的传输，其中，对于第2、3、4、5组的资源中不包括频域单元#2内的RB，对于第6、7、8、9组的资源中不包括频域单元#9内的RB，即这些组中包括的RB数为9个。对于第1组和第10组中没有用于PRACH传输的RB可以组成一个新的组，该新的组中包括16个RB且依然满足带宽占用的需求。For the manner of the frequency domain resource occupied by one PRACH resource shown in FIG. 2b, in order to implement PRACH and PUSCH or PUCCH multiplexing in the same subframe, the manner shown in FIG. 2d may be adopted. Also, the 20M system bandwidth is divided into 10 frequency domain units, each frequency domain unit includes 10 consecutive RBs, and the RB of each frequency domain unit having the same offset value as the first RB in the frequency domain unit is For a group, the access network device performs resource allocation in groups as an example. A PRACH resource includes two basic resource units, wherein one basic resource unit occupies consecutive 6 RBs in the frequency domain, specifically, the 10th RB of the frequency domain unit #1 and the 1st and 2nd of the frequency

domain unit #

2 , 3, 4, 5 RBs. The other basic resource unit also occupies six consecutive RBs in the frequency domain, specifically, the sixth, seventh, eighth, ninth, and tenth RBs of the frequency domain unit #9 and the first RB of the frequency domain unit #10. The access network device can still allocate the 2nd, 3rd, 4th, 5th, 6th, 7th, 8th, and 9th groups for PUSCH or PUCCH transmission, wherein the resources of the 2nd, 3rd, 4th, and 5th groups do not include the frequency. The RBs in the domain unit #2 do not include the RBs in the frequency domain unit #9 for the resources of the sixth, seventh, eighth, and ninth groups, that is, the number of RBs included in these groups is nine. For the RBs in the first group and the 10th group that are not used for PRACH transmission, a new group may be formed, which includes 16 RBs and still meets the bandwidth occupation requirement.

需要说明的是，上行PUSCH的资源分配通常要求分配的RB个数满足2、3、5的倍数需求以便于实现DFT，上述新的分配方式中每组的RB个数仍然满足这个需求。 It should be noted that the resource allocation of the uplink PUSCH generally requires that the number of allocated RBs meet the multiple requirements of 2, 3, and 5 in order to implement DFT. The number of RBs in each group in the above new allocation manner still satisfies this requirement.

类似地，10M***带宽包括50个RB，将所述50个RB从1编号至50。50个RB可以划分成5个频域单元，每个频域单元包括5个连续的RB，每个频域单元中与该频域单元中的第一个RB的偏移值相同的RB为一个组，接入网设备以组为单位进行资源分配。在这种结构下，如果PRACH和PUSCH或PUCCH复用，PRACH占用的RB的编号为5、6、7、8、9、10、41、42、43、44、45、46。Similarly, the 10M system bandwidth includes 50 RBs, and the 50 RBs are numbered from 1 to 50. The 50 RBs can be divided into 5 frequency domain units, and each frequency domain unit includes 5 consecutive RBs, each frequency. The RBs in the domain unit that have the same offset value as the first RB in the frequency domain unit are one group, and the access network device performs resource allocation in units of groups. In this configuration, if the PRACH is multiplexed with the PUSCH or the PUCCH, the numbers of the RBs occupied by the PRACH are 5, 6, 7, 8, 9, 10, 41, 42, 43, 44, 45, 46.

下文结合图3，对根据本发明实施例的发送PRACH的方法进行详细说明。A method of transmitting a PRACH according to an embodiment of the present invention will be described in detail below with reference to FIG. 3.

图3示出了根据本发明实施例的发送PRACH的方法的示意***互图100。如图3所示，该方法100包括：FIG. 3 shows a schematic interaction diagram 100 of a method of transmitting a PRACH in accordance with an embodiment of the present invention. As shown in FIG. 3, the method 100 includes:

101、接入网设备在第一时间段内发送第一指示信令。101. The access network device sends the first indication signaling in the first time period.

其中，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是为所述接入网设备服务的小区下的终端设备配置的。The first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate time domain location information of the first PRACH resource in a second time period, where A PRACH resource is configured for a terminal device in a cell served by the access network device.

可选地，所述第一指示信令是物理层信令或者无线资源控制(Radio Resource Control，RRC)信令或者媒体接入控制(Media Access Control，MAC)层信令。Optionally, the first indication signaling is physical layer signaling or Radio Resource Control (RRC) signaling or Media Access Control (MAC) layer signaling.

优选地，所述第一指示信令是物理层信令。Preferably, the first indication signaling is physical layer signaling.

可选地，第一时间段是一次下行突发。Optionally, the first time period is a downlink burst.

可选地，第二时间段是一次上行突发。Optionally, the second time period is an uplink burst.

图4a给出了第一时间段和第二时间段的关系的示意图。如图4a所示，第一时间段为一次下行突发，第一时间段内包括5个下行子帧，子帧编号分别为1、2、3、4、5。第二时间段为第一时间段后的一次上行突发，第二时间段内包括4个上行子帧，子帧编号分别为m、m+1、m+2、m+3。第一时间段和第二时间段之间包括不用于传输的时域资源。Figure 4a shows a schematic diagram of the relationship between the first time period and the second time period. As shown in FIG. 4a, the first time period is a downlink burst, and the first time period includes five downlink subframes, and the subframe numbers are 1, 2, 3, 4, and 5, respectively. The second time period is an uplink burst after the first time period, and the second time period includes four uplink subframes, and the subframe numbers are m, m+1, m+2, and m+3, respectively. A time domain resource that is not used for transmission is included between the first time period and the second time period.

需要说明的是，第二时间段可以是第一时间段对应的一次下行突发后最近的一次上行突发。第二时间段和第一时间段之间的时间资源上也可以包括一次或多次上行突发。It should be noted that the second time period may be the latest uplink burst after one downlink burst corresponding to the first time period. The time resource between the second time period and the first time period may also include one or more uplink bursts.

可选地，第一PRACH资源在频域上占用连续的6个RB。Optionally, the first PRACH resource occupies a continuous 6 RBs in the frequency domain.

可选地，第一PRACH资源包括第一RB和第二RB，其中，第一RB与第二RB之间的频域间隔大于或等于预设频域间隔。Optionally, the first PRACH resource includes a first RB and a second RB, where the first RB is The frequency domain interval between the second RBs is greater than or equal to the preset frequency domain interval.

可选地，第一PRACH资源占用的频域资源包括两个基本资源单元，其中，每一个基本资源单元在频域上占用连续的6个RB。进一步可选地，第一RB和第二RB分别为两个基本资源单元中的第一个RB，第一RB与第二RB之间的频域间隔大于或等于预设频域间隔。Optionally, the frequency domain resource occupied by the first PRACH resource includes two basic resource units, where each basic resource unit occupies a continuous 6 RBs in the frequency domain. Further, the first RB and the second RB are respectively the first RB of the two basic resource units, and the frequency domain interval between the first RB and the second RB is greater than or equal to the preset frequency domain interval.

可选地，第一PRACH资源占用的频域资源在一个子帧内固定。例如，在带宽为20M的***中，将频域包括的100个RB从1编号至100，第一PRACH资源在频域上占用12个RB，且其占用的RB对应的编号为10、11、12、13、14、15、86、87、88、89、90、91。又例如，在带宽为10M的***中，将频域包括的50个RB从1编号至50，第一PRACH资源在频域上占用12个RB，且其占用的RB对应的编号为5、6、7、8、9、10、41、42、43、44、45、46。进一步可选地，一旦用户设备收到第一PRACH资源的时域位置信息，那么用户设备可以确定第一PRACH资源的时域和频域位置，并在进行PUSCH或PUCCH或其他上行信号的资源映射时应避开PRACH资源占用的RB。Optionally, the frequency domain resource occupied by the first PRACH resource is fixed in one subframe. For example, in a system with a bandwidth of 20 M, the number of 100 RBs included in the frequency domain is numbered from 1 to 100, and the first PRACH resource occupies 12 RBs in the frequency domain, and the number of RBs occupied by the RBs is 10, 11, 12, 13, 14, 15, 86, 87, 88, 89, 90, 91. For example, in a system with a bandwidth of 10 M, the 50 RBs included in the frequency domain are numbered from 1 to 50, and the first PRACH resource occupies 12 RBs in the frequency domain, and the RBs occupied by the RBs are numbered 5 and 6. 7, 8, 9, 10, 41, 42, 43, 44, 45, 46. Further optionally, once the user equipment receives the time domain location information of the first PRACH resource, the user equipment may determine the time domain and the frequency domain location of the first PRACH resource, and perform resource mapping on the PUSCH or PUCCH or other uplink signals. The RB occupied by the PRACH resource should be avoided.

可选地，第一PRACH资源占用的频域资源包括N个RB，其中，该N个RB中任意两个相邻的RB之间的频域间隔相等。Optionally, the frequency domain resource occupied by the first PRACH resource includes N RBs, where frequency domain intervals between any two adjacent RBs of the N RBs are equal.

进一步可选地，第一RB和第二RB分别为第一PRACH资源在频域上占用的第一个RB与最后一个RB，第一RB与第二RB之间的频域间隔大于或等于预设频域间隔。Further, the first RB and the second RB are respectively the first RB and the last RB occupied by the first PRACH resource in the frequency domain, and the frequency domain interval between the first RB and the second RB is greater than or equal to the pre- Set the frequency domain interval.

可选地，接入网设备在第一时间段内的子帧n上发送所述第一指示信令，n为大于或等于0的整数。例如，n的取值为0、5、20、100等等。可选地，n的取值范围是固定的，其中n值循环编号。例如，n为大于或等于0且小于或等于9的整数，其中，子帧9的后一个子帧为子帧0。Optionally, the access network device sends the first indication signaling on a subframe n in a first time period, where n is an integer greater than or equal to 0. For example, the value of n is 0, 5, 20, 100, and so on. Optionally, the range of values of n is fixed, where the n value is cyclically numbered. For example, n is an integer greater than or equal to 0 and less than or equal to 9, wherein the next subframe of subframe 9 is subframe 0.

可选地，第二时间段内的起始子帧与子帧n所在的下行突发中的最后一个子帧的偏移值为固定值。Optionally, the offset value of the start subframe in the second time period and the last subframe in the downlink burst where the subframe n is located is a fixed value.

其中，第一时间段为所述下行突发，该固定值为大于或等于0的整数。以如图4a为例进行说明，假设n＝2，固定值为1，那么子帧n为下行子帧#2，第二时间段内的起始子帧与第一时间段的最后一个下行子帧#5的偏移为1个子帧，即第二时间段内的起始子帧#m为子帧#6。需要说明的是，偏移值为0具体指第一时间段的最后一个子帧与第二时间段的第一个子帧为同一个子帧，即第一时间段的最后一个子帧与第二时间段的第一个子帧均为部分子帧。The first time period is the downlink burst, and the fixed value is an integer greater than or equal to 0. As shown in FIG. 4a, assuming that n=2 and a fixed value is 1, the subframe n is the downlink subframe #2, and the initial subframe in the second time period and the last downlink in the first time period. The offset of frame #5 is 1 subframe, that is, the starting subframe #m in the second time period is subframe #6. It should be noted that the offset value of 0 specifically means that the last subframe of the first time period is the same as the first subframe of the second time period. The subframe, that is, the last subframe of the first time period and the first subframe of the second time period are both partial subframes.

可选地，第二时间段内的起始子帧与子帧n的偏移值为固定值。Optionally, the offset value of the starting subframe and the subframe n in the second time period is a fixed value.

可选地，第二时间段内的起始子帧为子帧n+k后的第一个上行部分子帧，该上行部分子帧为至少一个符号不用于上行传输的子帧，k为大于或等于1的整数。Optionally, the starting subframe in the second time period is the first uplink partial subframe after the subframe n+k, and the uplink partial subframe is a subframe in which at least one symbol is not used for uplink transmission, where k is greater than Or an integer equal to 1.

可选地，第二时间段内的起始子帧为子帧n+k后的第一个上行完整子帧，该上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k为大于或等于1的整数。Optionally, the starting subframe in the second time period is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink of all uplinks in one subframe. Subframe, k is an integer greater than or equal to 1.

可选地，接入网设备在一次下行突发中的第一个子帧上发送第一指示信令，其中，第一时间段为所述一次下行突发。Optionally, the access network device sends the first indication signaling in the first subframe of the one downlink burst, where the first time period is the one downlink burst.

优选地，接入网设备在一次下行突发中的第一个完整子帧上发送第一指示信令。Preferably, the access network device sends the first indication signaling on the first complete subframe of the one downlink burst.

可选地，接入网设备在一次下行突发中的最后一个子帧上发送第一指示信令，其中，第一时间段为所述一次下行突发。Optionally, the access network device sends the first indication signaling in a last subframe of the one downlink burst, where the first time period is the one downlink burst.

可选地，接入网设备在第一时间段内的发现参考信号DRS子帧上发送第一指示信令。Optionally, the access network device sends the first indication signaling on the discovery reference signal DRS subframe in the first time period.

可选地，第一PRACH资源在第二时间段内的时域位置信息包括以下情况中的至少一种：Optionally, the time domain location information of the first PRACH resource in the second time period includes at least one of the following situations:

第一PRACH资源在第二时间段内是否存在的信息；Whether the first PRACH resource exists in the second time period;

第一PRACH资源在第二时间段内所在子帧的位置信息；Position information of the subframe in which the first PRACH resource is located in the second time period;

第一PRACH资源在第二时间段内所在符号的位置信息。The location information of the symbol where the first PRACH resource is located in the second time period.

需要说明的是，随机接入前导序列的格式0通常占用1个子帧，其中随机接入前导序列的有效信息部分占用800us，考虑到该格式下循环前缀或保护时间的冗余，格式0对应的PRACH的符号起始时刻可以为一个正常循环前缀子帧的符号#0，或符号#1，或符号#2的起始时刻；或者，格式0对应的PRACH的符号起始时刻可以为一个长循环前缀子帧的符号#0，或符号#1，或符号#2的起始时刻。随机接入前导序列的格式4占用约2个符号，更常用于一次上行突发中的第一个上行部分子帧中。It should be noted that the format 0 of the random access preamble sequence usually occupies 1 subframe, wherein the valid information part of the random access preamble sequence occupies 800 us, considering the redundancy of the cyclic prefix or the guard time in the format, the format 0 corresponds The symbol start time of the PRACH may be the symbol #0 of a normal cyclic prefix subframe, or the start time of the symbol #1, or the symbol #2; or the symbol start time of the PRACH corresponding to the format 0 may be a long loop. The starting time of the symbol #0, or the symbol #1 of the prefix subframe, or the symbol #2. Format 4 of the random access preamble sequence occupies about 2 symbols, and is more commonly used in the first uplink partial subframe in an uplink burst.

图4b给出了随机接入前导序列的格式0和格式4在一个正常循环前缀子帧里的映射示意图。 Figure 4b shows a schematic diagram of the mapping of format 0 and format 4 of the random access preamble sequence in a normal cyclic prefix subframe.

当第一PRACH资源在第二时间段内的时域位置信息为符号表示的位置信息时，可选地，第一PRACH资源在第二时间段内的时域位置信息隐式指示第一PRACH资源上承载的随机接入前导序列的格式信息。When the time domain location information of the first PRACH resource in the second time period is the location information indicated by the symbol, optionally, the time domain location information of the first PRACH resource in the second time period implicitly indicates the first PRACH resource. Format information of the random access preamble carried on the uplink.

例如，如果第一PRACH资源在第二时间段内所在的一个子帧上的符号的编号为大于或等于3的正整数，那么该时域位置信息隐式指示第一PRACH资源上承载的随机接入前导序列的格式为格式4或其他和格式4类似的占用较少时间资源的格式。如果第一PRACH资源在第二时间段内所在的第一个符号的编号为大于或等于0且小于3的整数，那么该时域位置信息隐式指示第一PRACH资源上承载的随机接入前导序列的格式为格式0或其他和格式0类似的占用约1ms时间资源的格式。For example, if the number of symbols on a subframe in which the first PRACH resource is located in the second time period is a positive integer greater than or equal to 3, the time domain location information implicitly indicates the random connection carried on the first PRACH resource. The format of the incoming preamble sequence is format 4 or other format that takes up less time resources similar to format 4. If the number of the first symbol in the second period of the first PRACH resource is greater than or equal to 0 and less than 3, the time domain location information implicitly indicates the random access preamble carried on the first PRACH resource. The format of the sequence is format 0 or other format similar to format 0 that occupies approximately 1 ms of time resources.

可选地，第一PRACH资源指示信息中包括第一PRACH资源在所述第二时间段内的配置索引，其中，第一PRACH资源在第二时间段内的时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。Optionally, the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where the time domain location information of the first PRACH resource in the second time period passes the configuration index. Instructing, the configuration index is further used to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and At least one of the random access radio network temporary identifier RA-RNTI, wherein the root sequence generation parameter is used to generate a root sequence of the random access preamble sequence.

具体地，可以包括以下方式。Specifically, the following manners may be included.

需要说明的是，这里，根序列的生成参数用于生成随机接入前导序列的根序列。It should be noted that, here, the generation parameters of the root sequence are used to generate a root sequence of the random access preamble sequence.

进一步地，根据根序列和零相关区配置参数可以生成随机接入前导序列。Further, a random access preamble sequence may be generated according to the root sequence and the zero correlation zone configuration parameter.

接入网设备预定义免许可频谱资源的载波上的PRACH资源指示表格，该PRACH资源指示表格用于指示在上行传输的一个或多个子帧内PRACH资源的配置。其中，PRACH资源指示表格中包括PRACH配置索引和PRACH的时域资源(第二时间段内的相对子帧号)，PRACH资源指示表格中还包括PRACH资源上承载的随机接入前导序列的序列格式、PRACH的频域资源和无线接入无线网络临时标识(Radio Access Radio Network Tempory Identity，RA-RNTI)中的至少一项。The access network device pre-defines a PRACH resource indication table on a carrier of the unlicensed spectrum resource, where the PRACH resource indication table is used to indicate the configuration of the PRACH resource in one or more subframes of the uplink transmission. The PRACH resource indication table includes a PRACH configuration index and a PRACH time domain resource (a relative subframe number in a second time period), and the PRACH resource indication table further includes a sequence format of the random access preamble sequence carried on the PRACH resource. At least one of a frequency domain resource of a PRACH and a Radio Access Radio Network Tempory Identity (RA-RNTI).

表1示出了PRACH资源指示表格的一种可能的形式(为了便于描述，以下记作指示方式1)。 Table 1 shows one possible form of the PRACH resource indication table (for convenience of description, hereinafter referred to as indication mode 1).

表1Table 1

PRACH配置指示PRACH configuration indication	序列格式Sequence format	相对子帧号Relative subframe number	PRACH组指示 PRACH group instructions
00	44	00	任意Arbitrarily
11	44	11	任意Arbitrarily
22	44	0,10,1	任意Arbitrarily
33	00	11	00
44	00	11	0,10,1
55	00	1,21,2	(0；0)(0;0)
66	00	1,21,2	(0；1)(0;1)
77	00	1,21,2	(1；0)(1;0)
88	保留Reserved	保留Reserved	保留Reserved

需要说明的是，表1中的相对子帧号0表示第二时间段内的第一个子帧。其中，该第一个子帧可以是一个上行部分子帧或一个上行完整子帧。It should be noted that the relative subframe number 0 in Table 1 indicates the first subframe in the second time period. The first subframe may be an uplink partial subframe or an uplink complete subframe.

需要说明的是，由于免许可频谱的载波上的小区覆盖范围通常不大于1.5公里，可以认为，免许可频谱的载波上只需要支持随机接入前导序列格式0或格式4。It should be noted that, since the cell coverage on the carrier of the unlicensed spectrum is usually not more than 1.5 kilometers, it can be considered that only the random access preamble sequence format 0 or format 4 needs to be supported on the carrier of the unlicensed spectrum.

需要说明的是，表1中的1个PRACH组表示接入网设备在一个子帧内为小区配置1个PRACH资源，小区可以被配置多个PRACH组，其中，每个PRACH资源组的频域位置是预先配置的。It should be noted that the one PRACH group in Table 1 indicates that the access network device configures one PRACH resource for the cell in one subframe, and the cell may be configured with multiple PRACH groups, wherein the frequency domain of each PRACH resource group The location is pre-configured.

还需要说明的是，PRACH组指示中(x；y)和相对子帧号联合指示PRACH资源。例如，以PRACH配置索引6为例，表示该小区的PRACH资源配置为第二时间段内相对子帧号为1的子帧上的第0组PRACH资源和相对子帧号为2的子帧上的第1组PRACH资源。It should also be noted that the PRACH group indication (x; y) and the relative subframe number jointly indicate the PRACH resource. For example, the PRACH configuration index 6 is taken as an example, and the PRACH resource configuration of the cell is configured as a 0th group of PRACH resources and a subframe with a relative subframe number of 2 in a subframe corresponding to the subframe number 1 in the second time period. The first group of PRACH resources.

还需要说明的是，PRACH配置索引8可用于指示在第二时间段内没有PRACH资源。It should also be noted that the PRACH configuration index 8 can be used to indicate that there is no PRACH resource in the second time period.

从上述表1可知，PRACH只配置在一次上行突发中的前3个上行子帧上，可以较快地接入信道。As can be seen from the above Table 1, the PRACH is only configured in the first three uplink subframes in one uplink burst, and the channel can be accessed faster.

可选地，接入网设备在一次下行突发中的第一个子帧上发送第一指示信令，其中，第一指示信令中包括第一PRACH资源指示信息，第一PRACH 资源指示信息中包括第一PRACH资源在第二时间段内的配置索引。Optionally, the access network device sends the first indication signaling in the first subframe of the one downlink burst, where the first indication signaling includes the first PRACH resource indication information, and the first PRACH The resource indication information includes a configuration index of the first PRACH resource in the second time period.

表2示出了PRACH资源指示表格的另一种可能的形式(为了便于描述，以下记作指示方式2)。Table 2 shows another possible form of the PRACH resource indication table (for convenience of description, hereinafter referred to as indication 2).

表2Table 2

PRACH配置索引PRACH configuration index	序列格式Sequence format	相对子帧号Relative subframe number	PRACH组索引 PRACH group index
00	44	n-1N-1	任意Arbitrarily
11	44	nn	任意Arbitrarily
22	44	n-1,nN-1,n	任意Arbitrarily
33	00	n n	00
44	00	n n	0,10,1
55	00	n-1,nN-1,n	(0；0)(0;0)
66	00	n-1,nN-1,n	(0；1)(0;1)
77	00	n-1,nN-1,n	(1；0)(1;0)
88	保留Reserved	保留Reserved	保留Reserved

需要说明的是，表2中的相对子帧号n表示第二时间段内的最后一个子帧。其中，第二时间段内的最后一个子帧可以是一个上行部分子帧或一个上行完整子帧。It should be noted that the relative subframe number n in Table 2 represents the last subframe in the second time period. The last subframe in the second time period may be an uplink partial subframe or an uplink complete subframe.

还需要说明的是，PRACH组指示中(x；y)和相对子帧号联合指示PRACH资源。例如，以PRACH配置索引6为例，表示该小区的PRACH资源配置为第二时间段内倒数第二个子帧上的第0组PRACH资源和最后一个子帧上的第1组PRACH资源。It should also be noted that the PRACH group indication (x; y) and the relative subframe number jointly indicate the PRACH resource. For example, the PRACH configuration index 6 is taken as an example, and the PRACH resource configuration of the cell is configured as the 0th group PRACH resource on the second last subframe in the second time period and the first group PRACH resource on the last subframe.

从上述表2可知，PRACH只配置在一次上行突发中的后2个上行子帧上，因此，终端设备可以有较长的处理时间。因此，可选地，接入网设备在一次下行突发中的最后一个子帧上发送第一指示信令，其中，第一指示信令中包括第一PRACH资源指示信息，第一PRACH资源指示信息中包括第一PRACH资源在第二时间段内的配置索引。As can be seen from the above Table 2, the PRACH is only configured in the last two uplink subframes in one uplink burst. Therefore, the terminal device can have a longer processing time. Therefore, the access network device sends the first indication signaling in the last subframe of the one downlink burst, where the first indication signaling includes the first PRACH resource indication information, and the first PRACH resource indication The information includes a configuration index of the first PRACH resource in the second time period.

可选地，作为一个实施例，接入网设备确定PRACH中包括第一PRACH资源的频域位置。 Optionally, as an embodiment, the access network device determines a frequency domain location in the PRACH that includes the first PRACH resource.

在本发明实施例的指示方式中，接入网设备通过预定于PRACH资源指示表格，可以减少动态信令开销。In the indication mode of the embodiment of the present invention, the access network device can reduce the dynamic signaling overhead by scheduling the PRACH resource indication table.

可选地，第一指示信令中包括第一PRACH资源指示信息，第一PRACH资源指示信息用于指示第一PRACH资源在第二时间段内的时域位置信息，第一指示信令中还包括所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一项。Optionally, the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate time domain location information of the first PRACH resource in the second time period, where the first indication signaling is further And including a format of the random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and a random access wireless network temporary identifier RA- At least one of the RNTIs.

在本发明实施例的指示方式中，接入网设备每次都指示第一PRACH资源的时域或频域位置，能够增加调度的灵活性。In the indication mode of the embodiment of the present invention, the access network device indicates the time domain or the frequency domain location of the first PRACH resource each time, which can increase scheduling flexibility.

102、终端设备在第一时间段内接收第一指示信令。102. The terminal device receives the first indication signaling in the first time period.

其中，所述第一指示信令中包括第一PRACH资源指示信息；The first indication signaling includes the first PRACH resource indication information;

所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息；The first PRACH resource indication information is used to indicate time domain location information of the first PRACH resource in a second time period;

所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的。The first PRACH resource is configured by a terminal device in a cell served by the access network device for the access network device.

可选地，所述第一指示信令是物理层信令。Optionally, the first indication signaling is physical layer signaling.

可选地，终端设备在第一时间段内的子帧n上接收第一指示信令，n为大于或等于0的整数。例如，n的取值为0到20。进一步可选地，n为大于或等于0且小于或等于9的整数。Optionally, the terminal device receives the first indication signaling on the subframe n in the first time period, where n is an integer greater than or equal to 0. For example, the value of n is 0 to 20. Further optionally, n is an integer greater than or equal to 0 and less than or equal to 9.

可选地，第二时间段内的起始子帧与子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；Optionally, the offset value of the start subframe in the second time period and the last subframe in the downlink burst where the subframe n is located is a fixed value;

可选地，第二时间段内的起始子帧与子帧n的偏移值为固定值；Optionally, the offset value of the start subframe and the subframe n in the second time period is a fixed value;

可选地，第二时间段内的起始子帧为子帧n+k后的第一个上行部分子帧，该上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；Optionally, the starting subframe in the second time period is the first uplink partial subframe after the subframe n+k, and the uplink partial subframe is a subframe in which at least one symbol is not used for uplink transmission, and k≥1 ;

可选地，第二时间段内的起始子帧为子帧n+k后的第一个上行完整子帧，该上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。Optionally, the starting subframe in the second time period is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink of all uplinks in one subframe. Subframe, k≥1.

可选地，终端设备在一次下行突发中的第一个子帧上接收第一指示信令，其中，第一时间段为一次下行突发； Optionally, the terminal device receives the first indication signaling in the first subframe of the one downlink burst, where the first time period is a downlink burst;

可选地，终端设备在一次下行突发中的最后一个子帧上接收第一指示信令，其中，第一时间段为一次下行突发；Optionally, the terminal device receives the first indication signaling in a last subframe of the one downlink burst, where the first time period is a downlink burst;

可选地，终端设备在第一时间段内的发现参考信号DRS子帧上接收第一指示信令。Optionally, the terminal device receives the first indication signaling on the discovery reference signal DRS subframe in the first time period.

可选地，第一PRACH资源在第二时间段内的时域位置信息隐式指示第一PRACH资源上承载的随机接入前导序列的格式信息。Optionally, the time domain location information of the first PRACH resource in the second time period implicitly indicates the format information of the random access preamble sequence carried on the first PRACH resource.

例如，举例来说，如果第一PRACH资源在第二时间段内所在的第一个符号的编号为大于或等于3的正整数，那么该时域位置信息隐式指示第一PRACH资源上承载的随机接入前导序列的格式为格式4或其他和格式4类似的占用较少时间资源的格式。如果第一PRACH资源在第二时间段内所在的第一个符号的编号为大于或等于0且小于3的整数，那么该时域位置信息隐式指示第一PRACH资源上承载的随机接入前导序列的格式为格式0或其他和格式0类似的占用约1ms时间资源的格式。相应地，终端设备根据该时域位置信息确定在第一PRACH资源上随机接入前导序列对应的格式。For example, if the number of the first symbol in which the first PRACH resource is located in the second time period is a positive integer greater than or equal to 3, the time domain location information implicitly indicates that the first PRACH resource is carried. The format of the random access preamble sequence is format 4 or other format that takes up less time resources similar to format 4. If the number of the first symbol in the second period of the first PRACH resource is greater than or equal to 0 and less than 3, the time domain location information implicitly indicates the random access preamble carried on the first PRACH resource. The format of the sequence is format 0 or other format similar to format 0 that occupies approximately 1 ms of time resources. Correspondingly, the terminal device determines, according to the time domain location information, a format corresponding to the random access preamble sequence on the first PRACH resource.

具体地，所述配置索引指示可用于指示表格中预配置的参数。表1和表2给了两种可能的形式。In particular, the configuration index indication can be used to indicate pre-configured parameters in the table. Tables 1 and 2 give two possible forms.

可选地，第一指示信令中包括第一PRACH资源指示信息，第一PRACH 资源指示信息用于指示第一PRACH资源在第二时间段内的时域位置信息，第一指示信令中还包括所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一项。Optionally, the first indication signaling includes first PRACH resource indication information, and the first PRACH The resource indication information is used to indicate the time domain location information of the first PRACH resource in the second time period, where the first indication signaling further includes a format of the random access preamble sequence carried on the first PRACH resource, and the At least one of a frequency domain location of a PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and a random access wireless network temporary identity RA-RNTI.

103、所述终端设备在第二时间段内的所述第一PRACH资源上发送随机接入前导序列。103. The terminal device sends a random access preamble sequence on the first PRACH resource in a second time period.

可选地，终端设备选择任意一个候选随机接入前导序列，并在第一PRACH资源上发送。其中，候选随机接入前导序列为接入网设备服务的小区中可用的随机接入前导序列。Optionally, the terminal device selects any candidate random access preamble sequence and sends the first PRACH resource. The candidate random access preamble sequence is a random access preamble sequence available in a cell served by the access network device.

可选地，终端设备根据接入网设备的信令指示选择对应的随机接入前导序列，并在第一PRACH资源上发送。Optionally, the terminal device selects a corresponding random access preamble sequence according to the signaling indication of the access network device, and sends the same on the first PRACH resource.

可选地，终端设备根据测量得到的路损或待发送的数据量的大小等信息，从接入网设备配置的多个随机接入前导序列组中选择一个随机接入前导序列组，并从该随机接入前导序列组中选择一个随机接入前导序列在第一PRACH资源上发送。Optionally, the terminal device selects a random access preamble sequence group from the plurality of random access preamble sequence groups configured by the access network device according to the measured path loss or the size of the data volume to be sent, and the like. A random access preamble sequence is selected in the random access preamble sequence group to be sent on the first PRACH resource.

可选地，一次随机接入过程中，终端设备确定当前是第几次传输随机接入前导序列，然后从接入网设备配置多个随机接入前导序列组中选择对应的随机接入前导序列组，并从该随机接入前导序列组中选择一个随机接入前导序列在第一PRACH资源上发送。Optionally, in a random access procedure, the terminal device determines that the random access preamble sequence is currently transmitted, and then selects a corresponding random access preamble sequence from the access network device configured multiple random access preamble sequence groups. And selecting a random access preamble sequence from the random access preamble sequence group to send on the first PRACH resource.

104、所述接入网设备在所述第二时间段内的所述第一PRACH资源上检测随机接入前导序列。104. The access network device detects a random access preamble sequence on the first PRACH resource in the second time period.

可选地，接入网设备在第二时间段内的第一PRACH资源上检测随机接入前导序列的方法包括：接入网设备将所述接入网设备服务的小区下的候选随机接入前导序列与接收到的信号进行相关检测并判断峰值。如果峰值超过预设门限值，则接入网设备判断该峰值对应的随机接入前导序列为终端设备发送的随机接入前导序列。Optionally, the method for the access network device to detect the random access preamble sequence on the first PRACH resource in the second time period comprises: the access network device randomly selecting the candidate under the cell served by the access network device The preamble sequence correlates with the received signal and determines the peak value. If the peak value exceeds the preset threshold, the access network device determines that the random access preamble sequence corresponding to the peak is a random access preamble sequence sent by the terminal device.

进一步可选地，所述方法还包括：接入网设备向终端设备发送随机序列接入响应。Optionally, the method further includes: the access network device sends a random sequence access response to the terminal device.

可选地，所述终端设备发送的随机接入前导序列的序列标识是接入网设备通过信令指示的。接入网设备在第二时间段内的第一PRACH资源上检测随机接入前导序列的方法包括：接入网设备将发送给终端设备的随机接入前导序列与接收到的信号进行相关检测并判断峰值。如果峰值超过预设门限值，则接入网设备判断该终端设备发送的随机接入前导序列接收成功。Optionally, the sequence identifier of the random access preamble sequence sent by the terminal device is an access network device. It is indicated by signaling. The method for detecting, by the access network device, the random access preamble sequence on the first PRACH resource in the second time period includes: the access network device detects the random access preamble sequence sent to the terminal device and the received signal Determine the peak. If the peak value exceeds the preset threshold, the access network device determines that the random access preamble sequence sent by the terminal device is successfully received.

进一步可选地，所述方法还包括：接入网设备向终端设备发送随机序列接入响应，以指示终端设备随机接入成功。Further, optionally, the method further includes: the access network device sends a random sequence access response to the terminal device, to indicate that the terminal device successfully accesses the random access.

可选地，作为一个实施例，在接入网设备基于调度向小区内的某一特定终端设备(即，可对应本发明实施例中的第一终端设备)发送指示信令(即，可对应本发明实施例中的第二指示信令)，以指示该特定终端设备基于接入网设备发送的指示信令中所指示的PRACH资源(即，可对应本发明实施例中发的第二PRACH资源)进行随机接入的情况下，本发明实施例的发送PRACH的方法，还可以包括图3中所示的步骤105至步骤108。Optionally, as an embodiment, the access network device sends the indication signaling to the specific network device in the cell according to the scheduling, that is, the first terminal device in the embodiment of the present invention. The second indication signaling in the embodiment of the present invention is used to indicate that the specific terminal device is based on the PRACH resource indicated by the indication signaling sent by the access network device (that is, may be corresponding to the second PRACH sent in the embodiment of the present invention. The method for transmitting the PRACH in the embodiment of the present invention may further include the steps 105 to 108 shown in FIG. 3 .

105、接入网设备向第一终端设备发送第二指示信令。105. The access network device sends the second indication signaling to the first terminal device.

所述第一终端设备为所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令为终端设备专用信令；所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：The first terminal device is one of the terminal devices in the cell served by the access network device, the second indication signaling is terminal device dedicated signaling, and the second indication signaling includes the second PRACH resource. Instructing information, wherein the second PRACH resource indication information includes at least one of the following information:

第二PRACH资源上承载的随机接入前导序列的序列标识；a sequence identifier of a random access preamble carried on the second PRACH resource;

第二PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the second PRACH resource;

第二PRACH资源的时域位置信息；Time domain location information of the second PRACH resource;

第二PRACH资源的频域位置信息，Frequency domain location information of the second PRACH resource,

所述第二PRACH资源与所述第一PRACH资源不同，所述第二PRACH资源用于所述第一终端设备进行随机接入。The second PRACH resource is different from the first PRACH resource, and the second PRACH resource is used by the first terminal device to perform random access.

需要说明的是，此处，该第一终端设备可对应图3中的终端设备#B。或者说，在该实施例中，终端设备为接入网设备服务的小区下的一个特定的终端设备(即，第一终端设备)。It should be noted that, here, the first terminal device may correspond to the terminal device #B in FIG. 3. Or, in this embodiment, the terminal device is a specific terminal device (ie, the first terminal device) under the cell served by the access network device.

106、第一终端设备接收接入网设备发送的第二指示信令。106. The first terminal device receives the second indication signaling sent by the access network device.

第一终端设备根据第二指示信令确定第二PRACH资源、第二PRACH资源上承载的随机接入前导序列的序列标识、第二PRACH资源上承载的随机接入前导序列的格式等信息中的至少一种。The first terminal device determines, according to the second indication signaling, information about the second PRACH resource, the sequence identifier of the random access preamble sequence carried on the second PRACH resource, and the format of the random access preamble sequence carried on the second PRACH resource. At least one.

107、第一终端设备在第二PRACH资源上发送随机接入前导序列。 107. The first terminal device sends a random access preamble sequence on the second PRACH resource.

其中，第二PRACH资源与第一PRACH资源不同。The second PRACH resource is different from the first PRACH resource.

可选地，第一终端设备根据接入网设备的信令指示选择对应的随机接入前导序列，并在第二PRACH资源上发送。Optionally, the first terminal device selects a corresponding random access preamble sequence according to the signaling indication of the access network device, and sends the data on the second PRACH resource.

108、接入网设备在第二PRACH资源上检测随机接入前导序列。108. The access network device detects a random access preamble sequence on the second PRACH resource.

可选地，接入网设备将发送给第一终端设备的随机接入前导序列与接收到的信号进行相关检测并判断峰值。如果峰值超过预设门限值，则接入网设备判断第一终端设备发送的随机接入前导序列接收成功。Optionally, the access network device performs correlation detection on the random access preamble sequence sent to the first terminal device and the received signal, and determines a peak value. If the peak value exceeds the preset threshold, the access network device determines that the random access preamble sequence sent by the first terminal device is successfully received.

进一步可选地，所述方法还包括：接入网设备向第一终端设备发送随机序列接入响应，以指示终端设备随机接入成功。Optionally, the method further includes: the access network device sends a random sequence access response to the first terminal device, to indicate that the terminal device is successfully accessed randomly.

应理解，在该实施例中，终端设备(即，对应本发明实施例中的第一终端设备)基于接入网设备的调度发起随机接入过程。因此，终端设备接收到第二指示信令后，根据第二指示信令中携带的第二PRACH资源指示信息，确定接入网设备指定的用于进行随机接入的PRACH资源(即，对应本发明实施例中的第二PRACH资源)。接下来，终端设备在该第二PRACH资源上向接入网设备发起随机接入过程。It should be understood that in this embodiment, the terminal device (ie, the first terminal device corresponding to the embodiment of the present invention) initiates a random access procedure based on the scheduling of the access network device. Therefore, after receiving the second indication signaling, the terminal device determines, according to the second PRACH resource indication information carried in the second indication signaling, the PRACH resource specified by the access network device for performing random access (ie, the corresponding The second PRACH resource in the embodiment of the invention). Next, the terminal device initiates a random access procedure to the access network device on the second PRACH resource.

上文结合图1至图4b，详细说明了根据本发明实施例的发送PRACH的方法。以下结合图5至图7，说明根据本发明实施例的传输PRACH的接入网设备和终端设备。A method of transmitting a PRACH according to an embodiment of the present invention is described in detail above with reference to FIGS. 1 through 4b. An access network device and a terminal device for transmitting a PRACH according to an embodiment of the present invention are described below with reference to FIG. 5 to FIG. 7.

图5示出了根据本发明实施例的接入网设备的示意性框图。如图所示，该接入网设备300包括发送单元和处理单元，其中，FIG. 5 shows a schematic block diagram of an access network device in accordance with an embodiment of the present invention. As shown, the access network device 300 includes a sending unit and a processing unit, where

发送单元310，用于在第一时间段内发送第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令The sending unit 310 is configured to send the first indication signaling in the first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first The time domain location information of the PRACH resource in the second time period, the first PRACH resource is configured for the terminal device in the cell served by the access network device, and the first indication signaling is physical layer signaling

处理单元320，用于在所述第二时间段内的所述第一PRACH资源上检测随机接入前导序列。The processing unit 320 is configured to detect a random access preamble sequence on the first PRACH resource in the second time period.

可选地，作为一个实施例，所述发送单元具体用于：Optionally, as an embodiment, the sending unit is specifically configured to:

在所述第一时间段内的子帧n上发送所述第一指示信令，n为大于或等于0的整数，其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个： Transmitting the first indication signaling on a subframe n in the first time period, where n is an integer greater than or equal to 0, wherein the subframe n and a starter in the second time period The frame satisfies at least one of the following conditions:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；The offset value of the initial subframe and the last subframe in the downlink burst where the subframe n is located is a fixed value;

所述起始子帧与所述子帧n的偏移值为固定值；The offset value of the starting subframe and the subframe n is a fixed value;

所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；The initial subframe is a first uplink subframe after the subframe n+k, and the uplink subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1;

所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。The initial subframe is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.

可选地，作为一个实施例，所述发送单元在第一时间段内发送第一指示信令，包括以下方式中的至少一种：Optionally, as an embodiment, the sending unit sends the first indication signaling in the first time period, including at least one of the following manners:

在一次下行突发中的第一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；Transmitting the first indication signaling on a first subframe in a downlink burst, where the first time period is the one downlink burst;

在一次下行突发中的最后一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；Transmitting the first indication signaling on a last subframe in a downlink burst, where the first time period is the one downlink burst;

在所述第一时间段内的发现参考信号DRS子帧上发送所述第一指示信令。Transmitting the first indication signaling on a discovery reference signal DRS subframe in the first time period.

可选地，作为一个实施例，所述时域位置信息包括以下情况中的至少一种：所述第一PRACH资源在所述第二时间段内是否存在的信息；所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；所述第一PRACH资源在所述第二时间段内所在符号的位置信息。Optionally, as an embodiment, the time domain location information includes at least one of the following information: whether the first PRACH resource exists in the second time period; the first PRACH resource is in The location information of the subframe in the second time period; the location information of the symbol where the first PRACH resource is located in the second time period.

可选地，作为一个实施例，所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。Optionally, as an embodiment, the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.

可选地，作为一个实施例，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。Optionally, as an embodiment, the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where the time domain location information is indicated by the configuration index. The configuration index is further configured to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and a random connection. At least one of the radio network temporary identifier RA-RNTI, wherein the root sequence generation parameter is used to generate a root sequence of the random access preamble sequence.

可选地，作为一个实施例，所述第一指示信令中还包括以下信息中的至少一项：Optionally, as an embodiment, the first indication signaling further includes at least one of the following information:

所述第一PRACH资源上承载的随机接入前导序列的格式； a format of a random access preamble sequence carried on the first PRACH resource;

所述第一PRACH资源的频域位置；a frequency domain location of the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

根序列的生成参数，用于生成所述随机接入前导序列的根序列；a generation parameter of the root sequence, used to generate a root sequence of the random access preamble sequence;

随机接入无线网络临时标识RA-RNTI。The random access wireless network temporary identity RA-RNTI.

可选地，作为一个实施例，所述第一PRACH资源包括第一资源块RB和第二RB，其中，所述第一RB与所述第二RB之间的频域间隔大于或等于预设频域间隔。Optionally, as an embodiment, the first PRACH resource includes a first resource block RB and a second RB, where a frequency domain interval between the first RB and the second RB is greater than or equal to a preset. Frequency domain interval.

可选地，作为一个实施例，所述发送单元具体还用于：Optionally, as an embodiment, the sending unit is further configured to:

向第一终端设备发送第二指示信令，所述第二指示信令为终端设备专用信令，所述第一终端设备为所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：Transmitting, by the first terminal device, the second indication signaling, where the second indication signaling is terminal device dedicated signaling, and the first terminal device is one of the terminal devices in the cell served by the access network device, The second indication signaling includes a second PRACH resource indication information, where the second PRACH resource indication information includes at least one of the following information:

其中，所述第二PRACH资源与所述第一PRACH资源不同，所述第二PRACH资源用于所述第一终端设备进行随机接入。The second PRACH resource is different from the first PRACH resource, and the second PRACH resource is used by the first terminal device to perform random access.

根据本发明实施例的传输PRACH的接入网设备可对应根据本发明实施例的发送PRACH的方法中的接入网设备。并且，接入网设备包括的各个单元和上述其它操作和/或功能分别为了实现图3中由接入网设备执行的各个步骤。为了简洁，此处不再赘述。An access network device that transmits a PRACH according to an embodiment of the present invention may correspond to an access network device in a method for transmitting a PRACH according to an embodiment of the present invention. Moreover, the various units included in the access network device and the other operations and/or functions described above are respectively implemented in order to implement the various steps performed by the access network device in FIG. For the sake of brevity, it will not be repeated here.

上文结合图5，详细说明了根据本发明实施例的传输信息的接入网设备。以下结合图6，说明根据本发明实施例的终端设备。The access network device for transmitting information according to an embodiment of the present invention is described in detail above with reference to FIG. A terminal device according to an embodiment of the present invention will be described below with reference to FIG.

图6示出了根据本发明实施例的传输PRACH的终端设备的示意性框图。如图6所示，该终端设备包括接收单元610和发送单元620，其中，FIG. 6 shows a schematic block diagram of a terminal device that transmits a PRACH according to an embodiment of the present invention. As shown in FIG. 6, the terminal device includes a receiving unit 610 and a sending unit 620, where

接收单元410，用于在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令； The receiving unit 410 is configured to receive the first indication signaling in the first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first The time domain location information of the PRACH resource in the second time period, where the first PRACH resource is configured by the access network device for the terminal device in the cell served by the access network device, where the first indication signaling is Physical layer signaling;

发送单元420，用于在所述第二时间段内的所述第一PRACH资源上发送随机接入前导序列。The sending unit 420 is configured to send a random access preamble sequence on the first PRACH resource in the second time period.

可选地，作为一个实施例，所述接收单元具体用于：Optionally, as an embodiment, the receiving unit is specifically configured to:

在所述第一时间段内的子帧n上接收所述第一指示信令，n为大于或等于0的整数，其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：Receiving the first indication signaling on a subframe n in the first time period, where n is an integer greater than or equal to 0, wherein the subframe n and a starter in the second time period The frame satisfies at least one of the following conditions:

可选地，作为一个实施例，所述接收单元在所述第一时间段内接收第一指示信令，包括以下方式中的至少一种：Optionally, as an embodiment, the receiving unit receives the first indication signaling in the first time period, including at least one of the following manners:

在一次下行突发中的第一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；Receiving the first indication signaling in a first subframe of a downlink burst, where the first time period is the one downlink burst;

在一次下行突发中的最后一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；Receiving the first indication signaling in a last subframe of a downlink burst, where the first time period is the one downlink burst;

在所述第一时间段内的发现参考信号DRS子帧上接收所述第一指示信令。Receiving the first indication signaling on a discovery reference signal DRS subframe in the first time period.

可选地，作为一个实施例，所述时域位置信息包括以下情况中的至少一种：Optionally, as an embodiment, the time domain location information includes at least one of the following situations:

所述第一PRACH资源在所述第二时间段内是否存在的信息；Information about whether the first PRACH resource exists in the second time period;

所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；Position information of the subframe in which the first PRACH resource is located in the second time period;

所述第一PRACH资源在所述第二时间段内所在符号的位置信息。Location information of the symbol in which the first PRACH resource is located in the second time period.

可选地，作为一个实施例，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。Optionally, as an embodiment, the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where the time domain location information is indicated by the configuration index. The configuration index is further used to indicate that the first PRACH resource carries At least one of a format of a random access preamble sequence, a frequency domain location of the first PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and a random access radio network temporary identifier RA-RNTI, where The generation parameters of the root sequence are used to generate a root sequence of the random access preamble sequence.

所述第一PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

根据本发明实施例的终端设备可对应根据本发明实施例的发送PRACH的方法中的终端设备。并且，终端设备包括的各个单元和上述其它操作和/或功能分别为了实现图3中由终端设备执行的各个步骤。为了简洁，此处不再赘述。A terminal device according to an embodiment of the present invention may correspond to a terminal device in a method for transmitting a PRACH according to an embodiment of the present invention. And, the respective units included in the terminal device and the other operations and/or functions described above are respectively for implementing the respective steps performed by the terminal device in FIG. For the sake of brevity, it will not be repeated here.

图7示出了根据本发明实施例的终端设备的示意性框图。如图7所示，该终端设备包括接收单元510，FIG. 7 shows a schematic block diagram of a terminal device according to an embodiment of the present invention. As shown in FIG. 7, the terminal device includes a receiving unit 510.

接收单元510，用于在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令。The receiving unit 510 is configured to receive the first indication signaling in the first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first The time domain location information of the PRACH resource in the second time period, where the first PRACH resource is configured by the access network device for the terminal device in the cell served by the access network device, where the first indication signaling is Physical layer signaling.

可选地。，作为一个实施例，所述接收单元具体用于：Optionally. As an embodiment, the receiving unit is specifically configured to:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；所述起始子帧与所述子帧n的偏移值为固定值； The offset value of the start subframe and the last subframe in the downlink burst where the subframe n is located is a fixed value; the offset value of the start subframe and the subframe n is a fixed value. ;

接收所述接入网设备发送的第二指示信令，所述第二指示信令为终端设备专用信令，所述终端设备所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：第二PRACH资源上承载的随机接入前导序列的序列标识；Receiving, by the access network device, second indication signaling, where the second indication signaling is terminal device dedicated signaling, and the terminal device is one of the terminal devices in the cell served by the access network device, The second indication signaling includes a second PRACH resource indication information, where the second PRACH resource indication information includes at least one of the following information: a sequence identifier of a random access preamble carried on the second PRACH resource;

其中，所述第二PRACH资源与所述第一PRACH资源不同，The second PRACH resource is different from the first PRACH resource.

以及，所述终端设备还包括：And the terminal device further includes:

发送单元，用于在所述第二PRACH资源上发送第三随机接入前导序列。And a sending unit, configured to send a third random access preamble sequence on the second PRACH resource.

可选地，作为一个实施例，所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。 Optionally, as an embodiment, the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.

零相关区配置参数；Zero correlation zone configuration parameters;

根据本发明实施例的的终端设备可对应根据本发明实施例的发送PRACH的方法中的第一终端设备。并且，终端设备包括的各个单元和上述其它操作和/或功能分别为了实现图3中由第一终端设备执行的各个步骤。为了简洁，此处不再赘述。A terminal device according to an embodiment of the present invention may correspond to a first terminal device in a method for transmitting a PRACH according to an embodiment of the present invention. And, the respective units included in the terminal device and the above-described other operations and/or functions respectively implement the respective steps performed by the first terminal device in FIG. For the sake of brevity, it will not be repeated here.

上文结合图5至图7，详细说明了根据本发明实施例的传输PRACH的接入网设备和终端设备。以下结合图8至图10说明根据本发明实施例的接入网设备和终端设备。The access network device and the terminal device for transmitting the PRACH according to the embodiment of the present invention are described in detail above with reference to FIG. 5 to FIG. 7. An access network device and a terminal device according to an embodiment of the present invention are described below with reference to FIGS. 8 through 10.

图8示出了根据本发明实施例的接入网设备600的示意性结构图。如图8所示，该接入网设备600包括处理器610、收发器620和存储器630。可选地，该设备600还包括总线***640，其中，处理器610、收发器620和存储器630可以通过总线***640相连。存储器630可以用于存储指令，处理器610用于执行存储器630存储的指令，收发器620用于，FIG. 8 shows a schematic structural diagram of an access network device 600 according to an embodiment of the present invention. As shown in FIG. 8, the access network device 600 includes a processor 610, a transceiver 620, and a memory 630. Optionally, the device 600 further includes a bus system 640, wherein the processor 610, the transceiver 620, and the memory 630 can be connected by a bus system 640. The memory 630 can be used to store instructions, the processor 610 is configured to execute instructions stored in the memory 630, and the transceiver 620 is configured to,

在第一时间段内发送第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一 PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；Sending the first indication signaling in the first time period, where the first indication signaling includes the first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first The time domain location information of the PRACH resource in the second time period, the first PRACH resource is configured for the terminal device in the cell served by the access network device, and the first indication signaling is physical layer signaling ;

处理器610用于在所述第二时间段内的所述第一PRACH资源上检测随机接入前导序列。The processor 610 is configured to detect a random access preamble sequence on the first PRACH resource in the second time period.

可选地，作为一个实施例，收发器620具体用于，Optionally, as an embodiment, the transceiver 620 is specifically configured to:

在所述第一时间段内的子帧n上发送所述第一指示信令，n为大于或等于0的整数，其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：Transmitting the first indication signaling on a subframe n in the first time period, where n is an integer greater than or equal to 0, wherein the subframe n and a starter in the second time period The frame satisfies at least one of the following conditions:

可选地，作为一个实施例，收发器620在第一时间段内发送第一指示信令，具体包括以下方式中的至少一种：Optionally, as an embodiment, the transceiver 620 sends the first indication signaling in the first time period, and specifically includes at least one of the following manners:

可选地，作为一个实施例，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。Optionally, as an embodiment, the first PRACH resource indication information includes the a configuration index of the first PRACH resource in the second time period, where the time domain location information is indicated by the configuration index, where the configuration index is further used to indicate a random access preamble carried on the first PRACH resource. At least one of a format of the sequence, a frequency domain location of the first PRACH resource, a zero-correlation zone configuration parameter, a root sequence generation parameter, and a random access radio network temporary identifier RA-RNTI, wherein the root sequence A generating parameter is used to generate a root sequence of the random access preamble sequence.

零相关区配置参数；Zero correlation zone configuration parameters;

可选地，作为一个实施例，所述收发器620具体还用于：Optionally, as an embodiment, the transceiver 620 is specifically configured to:

应理解，在本发明实施例中，处理器610可以是中央处理单元(central processing unit，CPU)，处理器610还可以是其它通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present invention, the processor 610 may be a central processing unit (CPU), and the processor 610 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASICs). ), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. General office The processor can be a microprocessor or the processor can be any conventional processor or the like.

存储器630可以包括只读存储器和随机存取存储器，并向处理器610提供指令和数据。处理器610的一部分还可以包括非易失性随机存取存储器。例如，处理器610还可以存储设备类型的信息。 Memory 630 can include read only memory and random access memory and provides instructions and data to processor 610. A portion of processor 610 may also include a non-volatile random access memory. For example, the processor 610 can also store information of the device type.

总线***640除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线***640。The bus system 640 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 640 in the figure.

在实现过程中，上述方法的各步骤可以通过处理器610中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的发送PRACH的方法的步骤，可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器630，处理器610读取存储器630中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 610 or an instruction in a form of software. The steps of the method for transmitting the PRACH disclosed in the embodiment of the present invention may be directly implemented by the hardware processor, or may be performed by using a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory 630, and the processor 610 reads the information in the memory 630 and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

根据本发明实施例的接入网设备600，可对应根据本发明实施例的传输随机接入前导序列的方法中的接入网设备。并且，设备600中的各个单元和上述其它操作和/或功能分别为了实现图中由接入网设备执行的各个步骤。为了简洁，此处不再赘述。The access network device 600 according to the embodiment of the present invention may correspond to an access network device in a method for transmitting a random access preamble sequence according to an embodiment of the present invention. Moreover, the various units in device 600 and the other operations and/or functions described above are respectively implemented to implement the various steps performed by the access network device in the figures. For the sake of brevity, it will not be repeated here.

图9示出了根据本发明另一实施例的终端设备700的示意性结构图。如图9所示，终端设备700包括处理器710、收发器720和存储器730。可选地，该设备700还包括总线***740，其中，处理器710、收发器720和存储器730可以通过总线***740相连，存储器730可以用于存储指令，处理器710用于执行存储器730存储的指令，FIG. 9 shows a schematic structural diagram of a terminal device 700 according to another embodiment of the present invention. As shown in FIG. 9, the terminal device 700 includes a processor 710, a transceiver 720, and a memory 730. Optionally, the device 700 further includes a bus system 740, wherein the processor 710, the transceiver 720, and the memory 730 can be connected by a bus system 740, the memory 730 can be used to store instructions, and the processor 710 is configured to execute the memory 730 storage. instruction,

收发器720用于在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；The transceiver 720 is configured to receive the first indication signaling in a first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first PRACH The time domain location information of the resource in the second time period, where the first PRACH resource is configured by the access network device for the terminal device in the cell served by the access network device, where the first indication signaling is physical Layer signaling

发送单元，用于在所述第二时间段内的所述第一PRACH资源上发送随机接入前导序列。 And a sending unit, configured to send a random access preamble sequence on the first PRACH resource in the second time period.

可选地，作为一个实施例，所述收发器720具体用于，Optionally, as an embodiment, the transceiver 720 is specifically configured to:

可选地，作为一个实施例，所述收发器720在所述第一时间段内接收第一指示信令，具体包括以下方式中的至少一种：Optionally, as an embodiment, the transceiver 720 receives the first indication signaling in the first time period, and specifically includes at least one of the following manners:

可选地，作为一个实施例，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。Optionally, as an embodiment, the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where the time domain location information is indicated by the configuration index. The configuration index is further configured to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, a zero correlation zone configuration parameter, a root sequence generation parameter, and a random connection. Into the wireless network temporary identity in the RA-RNTI At least one, wherein the generation parameter of the root sequence is used to generate a root sequence of the random access preamble sequence.

零相关区配置参数；Zero correlation zone configuration parameters;

应理解，在本发明实施例中，处理器710可以是中央处理单元(central processing unit，CPU)，处理器710还可以是其它通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present invention, the processor 710 may be a central processing unit (CPU), and the processor 710 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASICs). ), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

存储器730可以包括只读存储器和随机存取存储器，并向处理器710提供指令和数据。处理器710的一部分还可以包括非易失性随机存取存储器。例如，处理器710还可以存储设备类型的信息。 Memory 730 can include read only memory and random access memory and provides instructions and data to processor 710. A portion of the processor 710 can also include a non-volatile random access memory. For example, the processor 710 can also store information of the device type.

总线***740除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线***740。The bus system 740 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 740 in the figure.

在实现过程中，上述方法的各步骤可以通过处理器710中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的传输随机接入前导序列的方法的步骤，可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器730，处理器710读取存储器730中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。 In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 710 or an instruction in a form of software. The steps of the method for transmitting a random access preamble sequence disclosed in the embodiments of the present invention may be directly implemented as completion of the hardware processor, or may be performed by using a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory 730, and processor 710 reads the information in memory 730 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

根据本发明实施例的终端设备可对应根据本发明实施例的发送PRACH的方法中的终端设备。并且，该终端设备设备包括的各个单元和上述其它操作和/或功能分别为了实现图3中由终端设备执行的各个步骤。为了简洁，此处不再赘述。A terminal device according to an embodiment of the present invention may correspond to a terminal device in a method for transmitting a PRACH according to an embodiment of the present invention. And, the respective units included in the terminal device and the other operations and/or functions described above are respectively implemented in order to implement the steps performed by the terminal device in FIG. For the sake of brevity, it will not be repeated here.

图10示出了根据本发明另一实施例的终端设备800的示意性结构框图。如图10所示，设备800包括处理器810、收发器820和存储器830。可选地，该设备1000还包括总线***840，其中，处理器810、收发器820和存储器830可以通过总线***1040相连，存储器830可以用于存储指令，处理器810用于执行存储器830存储的指令，FIG. 10 is a block diagram showing a schematic structure of a terminal device 800 according to another embodiment of the present invention. As shown in FIG. 10, device 800 includes a processor 810, a transceiver 820, and a memory 830. Optionally, the device 1000 further includes a bus system 840, wherein the processor 810, the transceiver 820, and the memory 830 can be connected by a bus system 1040, the memory 830 can be used to store instructions, and the processor 810 is configured to execute the memory 830 storage. instruction,

收发器820，用于在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令。The transceiver 820 is configured to receive the first indication signaling in the first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first The time domain location information of the PRACH resource in the second time period, where the first PRACH resource is configured by the access network device for the terminal device in the cell served by the access network device, where the first indication signaling is Physical layer signaling.

可选地。，作为一个实施例，所述收发器820具体用于：Optionally. As an embodiment, the transceiver 820 is specifically configured to:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值；所述起始子帧与所述子帧n的偏移值为固定值；The offset value of the start subframe and the last subframe in the downlink burst where the subframe n is located is a fixed value; the offset value of the start subframe and the subframe n is a fixed value. ;

可选地，作为一个实施例，所述收发器820在所述第一时间段内接收第一指示信令，具体包括以下方式中的至少一种：Optionally, as an embodiment, the transceiver 820 receives the first indication signaling in the first time period, and specifically includes at least one of the following manners:

在所述第一时间段内的发现参考信号DRS子帧上接收所述第一指示信令。Receiving the first indication signal on a discovery reference signal DRS subframe in the first time period make.

可选地，作为一个实施例，所述收发器820具体用于：Optionally, as an embodiment, the transceiver 820 is specifically configured to:

接收所述接入网设备发送的第二指示信令，所述第二指示信令为终端设备专用信令，所述设备所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：第二PRACH资源上承载的随机接入前导序列的序列标识；Receiving, by the access network device, second indication signaling, where the second indication signaling is terminal device dedicated signaling, and the device is one of the terminal devices in the cell served by the access network device The second indication signaling includes a second PRACH resource indication information, where the second PRACH resource indication information includes at least one of the following information: a sequence identifier of a random access preamble carried on the second PRACH resource;

所述收发器820具体还用于，在所述第二PRACH资源上发送第三随机接入前导序列。The transceiver 820 is further configured to send a third random access preamble sequence on the second PRACH resource.

所述第一PRACH资源的频域位置； a frequency domain location of the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

应理解，在本发明实施例中，处理器810可以是中央处理单元(central processing unit，CPU)，处理器810还可以是其它通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。It should be understood that, in the embodiment of the present invention, the processor 810 may be a central processing unit (CPU), and the processor 810 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits (ASICs). ), off-the-shelf programmable gate arrays (FPGAs) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, and the like. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

存储器830可以包括只读存储器和随机存取存储器，并向处理器810提供指令和数据。处理器810的一部分还可以包括非易失性随机存取存储器。例如，处理器810还可以存储设备类型的信息。Memory 830 can include read only memory and random access memory and provides instructions and data to processor 810. A portion of the processor 810 can also include a non-volatile random access memory. For example, the processor 810 can also store information of the device type.

总线***840除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都标为总线***840。The bus system 840 may include a power bus, a control bus, a status signal bus, and the like in addition to the data bus. However, for clarity of description, various buses are labeled as bus system 840 in the figure.

在实现过程中，上述方法的各步骤可以通过处理器810中的硬件的集成逻辑电路或者软件形式的指令完成。结合本发明实施例所公开的传输随机接入前导序列的方法的步骤，可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器830，处理器810读取存储器830中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。In the implementation process, each step of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 810 or an instruction in a form of software. The steps of the method for transmitting a random access preamble sequence disclosed in the embodiments of the present invention may be directly implemented as completion of the hardware processor, or may be performed by using a combination of hardware and software modules in the processor. The software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in memory 830, and processor 810 reads the information in memory 830 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.

根据本发明实施例的终端设备，可对应根据本发明实施例的发送PRACH的方法中的第一终端设备。并且，该终端设备包括的各个单元和上述其它操作和/或功能分别为了实现图3中由第一终端设备执行的各个步骤。为了简洁，此处不再赘述。The terminal device according to the embodiment of the present invention may correspond to the first terminal device in the method for transmitting the PRACH according to the embodiment of the present invention. And, the respective units included in the terminal device and the other operations and/or functions described above are respectively implemented in order to implement the steps performed by the first terminal device in FIG. For the sake of brevity, it will not be repeated here.

应理解，在本发明的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本发明实施例的实施过程构成任何限定。It should be understood that, in various embodiments of the present invention, the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be The implementation process of the embodiments of the present invention constitutes any limitation.

本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的***、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

在本申请所提供的几个实施例中，应该理解到，所揭露的***、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个***，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided by the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

另外，在本发明各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(read-only memory，RAM)、随机存取存储器(random access memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (RAM), a random access memory (ROM), a magnetic disk, or an optical disk. The medium in which the program code is stored.

以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。 The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

一种发送物理随机接入信道PRACH的方法，其特征在于，所述方法包括：A method for transmitting a physical random access channel PRACH, the method comprising:

接入网设备在第一时间段内发送第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；The access network device sends the first indication signaling in the first time period, where the first indication signaling includes the first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first PRACH resource The first PRACH resource is configured for the terminal device under the cell served by the access network device, and the first indication signaling is physical layer signaling;

所述接入网设备在所述第二时间段内的所述第一PRACH资源上检测随机接入前导序列。The access network device detects a random access preamble sequence on the first PRACH resource in the second time period.
根据权利要求1所述的方法，其特征在于，所述接入网设备在第一时间段内发送第一指示信令，包括：The method according to claim 1, wherein the access network device sends the first indication signaling in the first time period, including:

所述接入网设备在所述第一时间段内的子帧n上发送所述第一指示信令，n为大于或等于0的整数；The access network device sends the first indication signaling on a subframe n in the first time period, where n is an integer greater than or equal to 0;

其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：The subframe n and the starting subframe in the second time period satisfy at least one of the following conditions:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值，其中，所述第一时间段为所述下行突发；The offset value of the initial subframe and the last one of the downlink bursts in which the subframe n is located is a fixed value, where the first time period is the downlink burst;

所述起始子帧与所述子帧n的偏移值为固定值；The offset value of the starting subframe and the subframe n is a fixed value;

所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；The initial subframe is a first uplink subframe after the subframe n+k, and the uplink subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1;

所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。The initial subframe is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.
根据权利要求1或2所述的方法，其特征在于，所述接入网设备在第一时间段内发送第一指示信令，包括以下方式中的至少一种：The method according to claim 1 or 2, wherein the access network device sends the first indication signaling in a first time period, including at least one of the following manners:

所述接入网设备在一次下行突发中的第一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；The access network device sends the first indication signaling in a first subframe of a downlink burst, where the first time period is the one downlink burst;

所述接入网设备在一次下行突发中的最后一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；The access network device sends the first indication signaling in a last subframe of a downlink burst, where the first time period is the one downlink burst;

所述接入网设备在所述第一时间段内的发现参考信号DRS子帧上发送所述第一指示信令。 The access network device sends the first indication signaling on a discovery reference signal DRS subframe in the first time period.
根据权利要求1至3中任一项所述的方法，其特征在于，所述时域位置信息包括以下情况中的至少一种：The method according to any one of claims 1 to 3, wherein the time domain location information comprises at least one of the following:

所述第一PRACH资源在所述第二时间段内是否存在的信息；Information about whether the first PRACH resource exists in the second time period;

所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；Position information of the subframe in which the first PRACH resource is located in the second time period;

所述第一PRACH资源在所述第二时间段内所在符号的位置信息。Location information of the symbol in which the first PRACH resource is located in the second time period.
根据权利要求1至4中任一项所述的方法，其特征在于，所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。The method according to any one of claims 1 to 4, wherein the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.
根据权利要求1至4中任一项所述的方法，其特征在于，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。The method according to any one of claims 1 to 4, wherein the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where The domain location information is indicated by the configuration index, where the configuration index is further used to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, and a zero correlation zone configuration. At least one of a parameter, a generation parameter of a root sequence, and a random access radio network temporary identifier RA-RNTI, wherein the generation parameter of the root sequence is used to generate a root sequence of the random access preamble sequence.
根据权利要求1至4中任一项所述的方法，其特征在于，所述第一指示信令中还包括以下信息中的至少一项：The method according to any one of claims 1 to 4, wherein the first indication signaling further includes at least one of the following information:

所述第一PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the first PRACH resource;

所述第一PRACH资源的频域位置；a frequency domain location of the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

根序列的生成参数，用于生成所述随机接入前导序列的根序列；a generation parameter of the root sequence, used to generate a root sequence of the random access preamble sequence;

随机接入无线网络临时标识RA-RNTI。The random access wireless network temporary identity RA-RNTI.
根据权利要求1至5中任一项所述的方法，其特征在于，所述第一PRACH资源占用的频域位置包括以下情况中的至少一种：The method according to any one of claims 1 to 5, wherein the frequency domain location occupied by the first PRACH resource comprises at least one of the following:

***带宽包括100个RB，将所述100个RB从1编号至100，所述第一PRACH资源占用的资源块RB的编号为10、11、12、13、14、15、86、87、88、89、90、91；The system bandwidth includes 100 RBs, and the 100 RBs are numbered from 1 to 100, and the number of resource blocks RB occupied by the first PRACH resource is 10, 11, 12, 13, 14, 15, 86, 87, 88. , 89, 90, 91;

***带宽包括50个RB，将所述50个RB从1编号至50，所述第一PRACH资源占用的资源块RB的编号为5、6、7、8、9、10、41、42、43、44、45、46。The system bandwidth includes 50 RBs, and the 50 RBs are numbered from 1 to 50, and the resource blocks RB occupied by the first PRACH resource are numbered 5, 6, 7, 8, 9, 10, 41, 42, 43 44, 45, 46.
根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：Method according to any one of claims 1 to 8, characterized in that the method Also includes:

所述接入网设备向第一终端设备发送第二指示信令，所述第二指示信令为终端设备专用信令，所述第一终端设备为所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：The access network device sends the second indication signaling to the first terminal device, where the second indication signaling is the terminal device dedicated signaling, and the first terminal device is the cell served by the access network device. One of the terminal devices, the second indication signaling includes a second PRACH resource indication information, where the second PRACH resource indication information includes at least one of the following information:

第二PRACH资源上承载的随机接入前导序列的序列标识；a sequence identifier of a random access preamble carried on the second PRACH resource;

第二PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the second PRACH resource;

第二PRACH资源的时域位置信息；Time domain location information of the second PRACH resource;

第二PRACH资源的频域位置信息；Frequency domain location information of the second PRACH resource;

所述第二PRACH资源与所述第一PRACH资源不同，所述第二PRACH资源用于所述第一终端设备进行随机接入。The second PRACH resource is different from the first PRACH resource, and the second PRACH resource is used by the first terminal device to perform random access.
一种发送物理随机接入信道PRACH的方法，其特征在于，所述方法包括：A method for transmitting a physical random access channel PRACH, the method comprising:

终端设备在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；The terminal device receives the first indication signaling in the first time period, where the first indication signaling includes the first PRACH resource indication information, where the first PRACH resource indication information is used to indicate that the first PRACH resource is in the first Time domain location information in a second time period, the first PRACH resource is configured by a terminal device in a cell served by the access network device, and the first indication signaling is physical layer signaling. ;

所述终端设备在所述第二时间段内的所述第一PRACH资源上发送随机接入前导序列。The terminal device sends a random access preamble sequence on the first PRACH resource in the second time period.
根据权利要求10所述的方法，其特征在于，所述终端设备在第一时间段内接收第一指示信令，包括：The method according to claim 10, wherein the receiving, by the terminal device, the first indication signaling in the first time period comprises:

所述终端设备在所述第一时间段内的子帧n上接收所述第一指示信令，n为大于或等于0的整数；The terminal device receives the first indication signaling on a subframe n in the first time period, where n is an integer greater than or equal to 0;

其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：The subframe n and the starting subframe in the second time period satisfy at least one of the following conditions:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值，其中，所述第一时间段为所述下行突发；The offset value of the initial subframe and the last one of the downlink bursts in which the subframe n is located is a fixed value, where the first time period is the downlink burst;

所述起始子帧与所述子帧n的偏移值为固定值；The offset value of the starting subframe and the subframe n is a fixed value;

所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1； The initial subframe is a first uplink subframe after the subframe n+k, and the uplink subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1;

所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。The initial subframe is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.
根据权利要求10或11所述的方法，其特征在于，所述终端设备在第一时间段内接收第一指示信令，包括以下方式中的至少一种：The method according to claim 10 or 11, wherein the terminal device receives the first indication signaling in a first time period, including at least one of the following manners:

所述终端设备在一次下行突发中的第一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；The terminal device receives the first indication signaling in a first subframe of a downlink burst, where the first time period is the one downlink burst;

所述终端设备在一次下行突发中的最后一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；The terminal device receives the first indication signaling in a last subframe of a downlink burst, where the first time period is the one downlink burst;

所述终端设备在所述第一时间段内的发现参考信号DRS子帧上接收所述第一指示信令。The terminal device receives the first indication signaling on a discovery reference signal DRS subframe in the first time period.
根据权利要求10至12中任一项所述的方法，其特征在于，所述时域位置信息包括以下情况中的至少一种：The method according to any one of claims 10 to 12, wherein the time domain location information comprises at least one of the following:

所述第一PRACH资源在所述第二时间段内是否存在的信息；Information about whether the first PRACH resource exists in the second time period;

所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；Position information of the subframe in which the first PRACH resource is located in the second time period;

所述第一PRACH资源在所述第二时间段内所在符号的位置信息。Location information of the symbol in which the first PRACH resource is located in the second time period.
根据权利要求10至13中任一项所述的方法，其特征在于，所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。The method according to any one of claims 10 to 13, wherein the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.
根据权利要求10至13中任一项所述的方法，其特征在于，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。The method according to any one of claims 10 to 13, wherein the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, where The domain location information is indicated by the configuration index, where the configuration index is further used to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, and a zero correlation zone configuration. At least one of a parameter, a generation parameter of a root sequence, and a random access radio network temporary identifier RA-RNTI, wherein the generation parameter of the root sequence is used to generate a root sequence of the random access preamble sequence.
根据权利要求10至13中任一项所述的方法，其特征在于，所述第一指示信令中还包括以下信息中的至少一项：The method according to any one of claims 10 to 13, wherein the first indication signaling further comprises at least one of the following information:

所述第一PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the first PRACH resource;

所述第一PRACH资源的频域位置；a frequency domain location of the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

根序列的生成参数，用于生成所述随机接入前导序列的根序列； a generation parameter of the root sequence, used to generate a root sequence of the random access preamble sequence;

随机接入无线网络临时标识RA-RNTI。The random access wireless network temporary identity RA-RNTI.
根据权利要求10至14中任一项所述的方法，其特征在于，所述第一PRACH资源占用的频域位置包括以下情况中的至少一种：The method according to any one of claims 10 to 14, wherein the frequency domain location occupied by the first PRACH resource comprises at least one of the following:

***带宽包括100个RB，将所述100个RB从1编号至100，所述第一PRACH资源占用的资源块RB的编号为10、11、12、13、14、15、86、87、88、89、90、91；The system bandwidth includes 100 RBs, and the 100 RBs are numbered from 1 to 100, and the number of resource blocks RB occupied by the first PRACH resource is 10, 11, 12, 13, 14, 15, 86, 87, 88. , 89, 90, 91;

***带宽包括50个RB，将所述50个RB从1编号至50，所述第一PRACH资源占用的资源块RB的编号为5、6、7、8、9、10、41、42、43、44、45、46。The system bandwidth includes 50 RBs, and the 50 RBs are numbered from 1 to 50, and the resource blocks RB occupied by the first PRACH resource are numbered 5, 6, 7, 8, 9, 10, 41, 42, 43 44, 45, 46.
一种接入网设备，其特征在于，所述接入网设备包括：An access network device, where the access network device includes:

发送单元，用于在第一时间段内发送第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；a sending unit, configured to send the first indication signaling in a first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first PRACH The time domain location information of the resource in the second time period, where the first PRACH resource is configured for the terminal device in the cell served by the access network device, and the first indication signaling is physical layer signaling;

处理单元，用于在所述第二时间段内的所述第一PRACH资源上检测随机接入前导序列。And a processing unit, configured to detect a random access preamble sequence on the first PRACH resource in the second time period.
根据权利要求18所述的接入网设备，其特征在于，所述发送单元具体用于在所述第一时间段内的子帧n上发送所述第一指示信令，n为大于或等于0的整数，The access network device according to claim 18, wherein the sending unit is configured to send the first indication signaling on a subframe n in the first time period, where n is greater than or equal to An integer of 0,

其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：The subframe n and the starting subframe in the second time period satisfy at least one of the following conditions:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值，其中，所述第一时间段为所述下行突发；The offset value of the initial subframe and the last one of the downlink bursts in which the subframe n is located is a fixed value, where the first time period is the downlink burst;

所述起始子帧与所述子帧n的偏移值为固定值；The offset value of the starting subframe and the subframe n is a fixed value;

所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；The initial subframe is a first uplink subframe after the subframe n+k, and the uplink subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1;

所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。The initial subframe is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.
根据权利要求18或19所述的接入网设备，其特征在于，所述发送单元在所述第一时间段内发送所述第一指示信令，包括以下方式中的至少一种：The access network device according to claim 18 or 19, wherein the sending unit sends the first indication signaling in the first time period, including at least one of the following manners Kind:

在一次下行突发中的第一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；Transmitting the first indication signaling on a first subframe in a downlink burst, where the first time period is the one downlink burst;

在一次下行突发中的最后一个子帧上发送所述第一指示信令，其中，所述第一时间段为所述一次下行突发；Transmitting the first indication signaling on a last subframe in a downlink burst, where the first time period is the one downlink burst;

在所述第一时间段内的发现参考信号DRS子帧上发送所述第一指示信令。Transmitting the first indication signaling on a discovery reference signal DRS subframe in the first time period.
根据权利要求18至20中任一项所述的接入网设备，其特征在于，所述时域位置信息包括以下情况中的至少一种：The access network device according to any one of claims 18 to 20, wherein the time domain location information comprises at least one of the following:

所述第一PRACH资源在所述第二时间段内是否存在的信息；Information about whether the first PRACH resource exists in the second time period;

所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；Position information of the subframe in which the first PRACH resource is located in the second time period;

所述第一PRACH资源在所述第二时间段内所在符号的位置信息。Location information of the symbol in which the first PRACH resource is located in the second time period.
根据权利要求18至21中任一项所述的接入网设备，其特征在于，所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。The access network device according to any one of claims 18 to 21, wherein the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.
根据权利要求18至21中任一项所述的接入网设备，其特征在于，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。The access network device according to any one of claims 18 to 21, wherein the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, The time domain location information is indicated by the configuration index, where the configuration index is further used to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, and a zero At least one of a correlation area configuration parameter, a root sequence generation parameter, and a random access radio network temporary identifier RA-RNTI, wherein the root sequence generation parameter is used to generate a root sequence of the random access preamble sequence.
根据权利要求18至21中任一项所述的接入网设备，其特征在于，所述第一指示信令中还包括以下信息中的至少一项：The access network device according to any one of claims 18 to 21, wherein the first indication signaling further includes at least one of the following information:

所述第一PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the first PRACH resource;

所述第一PRACH资源的频域位置；a frequency domain location of the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

根序列的生成参数，用于生成所述随机接入前导序列的根序列；a generation parameter of the root sequence, used to generate a root sequence of the random access preamble sequence;

随机接入无线网络临时标识RA-RNTI。The random access wireless network temporary identity RA-RNTI.
根据权利要求18至22中任一项所述的接入网设备，其特征在于，所述第一PRACH资源占用的频域位置包括以下情况中的至少一种： The access network device according to any one of claims 18 to 22, wherein the frequency domain location occupied by the first PRACH resource comprises at least one of the following cases:

***带宽包括100个RB，将所述100个RB从1编号至100，所述第一PRACH资源占用的资源块RB的编号为10、11、12、13、14、15、86、87、88、89、90、91；The system bandwidth includes 100 RBs, and the 100 RBs are numbered from 1 to 100, and the number of resource blocks RB occupied by the first PRACH resource is 10, 11, 12, 13, 14, 15, 86, 87, 88. , 89, 90, 91;

***带宽包括50个RB，将所述50个RB从1编号至50，所述第一PRACH资源占用的资源块RB的编号为5、6、7、8、9、10、41、42、43、44、45、46。The system bandwidth includes 50 RBs, and the 50 RBs are numbered from 1 to 50, and the resource blocks RB occupied by the first PRACH resource are numbered 5, 6, 7, 8, 9, 10, 41, 42, 43 44, 45, 46.
根据权利要求18至25中任一项所述的接入网设备，其特征在于，所述发送单元具体还用于向第一终端设备发送第二指示信令，所述第二指示信令为终端设备专用信令，所述第一终端设备为所述接入网设备服务的小区下的终端设备中的一个，所述第二指示信令包括第二PRACH资源指示信息，The access network device according to any one of claims 18 to 25, wherein the sending unit is further configured to send second indication signaling to the first terminal device, where the second indication signaling is The terminal device-specific signaling, the first terminal device is one of the terminal devices in the cell served by the access network device, and the second indication signaling includes the second PRACH resource indication information,

其中，所述第二PRACH资源指示信息中包括以下信息中的至少一个：The second PRACH resource indication information includes at least one of the following information:

第二PRACH资源上承载的随机接入前导序列的序列标识；a sequence identifier of a random access preamble carried on the second PRACH resource;

第二PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the second PRACH resource;

第二PRACH资源的时域位置信息；Time domain location information of the second PRACH resource;

第二PRACH资源的频域位置信息，Frequency domain location information of the second PRACH resource,

所述第二PRACH资源与所述第一PRACH资源不同，所述第二PRACH资源用于所述第一终端设备进行随机接入。The second PRACH resource is different from the first PRACH resource, and the second PRACH resource is used by the first terminal device to perform random access.
一种终端设备，其特征在于，所述终端设备包括：A terminal device, the terminal device includes:

接收单元，用于在第一时间段内接收第一指示信令，所述第一指示信令中包括第一PRACH资源指示信息，所述第一PRACH资源指示信息用于指示所述第一PRACH资源在第二时间段内的时域位置信息，所述第一PRACH资源是接入网设备为所述接入网设备服务的小区下的终端设备配置的，所述第一指示信令是物理层信令；a receiving unit, configured to receive the first indication signaling in a first time period, where the first indication signaling includes a first PRACH resource indication information, where the first PRACH resource indication information is used to indicate the first PRACH The time domain location information of the resource in the second time period, where the first PRACH resource is configured by the access network device for the terminal device in the cell served by the access network device, where the first indication signaling is physical Layer signaling

发送单元，用于在所述第二时间段内的所述第一PRACH资源上发送随机接入前导序列。And a sending unit, configured to send a random access preamble sequence on the first PRACH resource in the second time period.
根据权利要求27所述的终端设备，其特征在于，所述接收单元具体用于在所述第一时间段内的的子帧n上接收所述第一指示信令，n为大于或等于0的整数，The terminal device according to claim 27, wherein the receiving unit is configured to receive the first indication signaling on a subframe n in the first time period, where n is greater than or equal to 0. Integer,

其中，所述子帧n与所述第二时间段内的起始子帧满足以下条件中的至少一个：The subframe n and the starting subframe in the second time period satisfy at least one of the following conditions:

所述起始子帧与所述子帧n所在的下行突发中的最后一个子帧的偏移值为固定值，其中，所述第一时间段为所述下行突发；An offset value between the start subframe and the last subframe in the downlink burst where the subframe n is located a fixed value, wherein the first time period is the downlink burst;

所述起始子帧与所述子帧n的偏移值为固定值；The offset value of the starting subframe and the subframe n is a fixed value;

所述起始子帧为子帧n+k后的第一个上行部分子帧，所述上行部分子帧为至少一个符号不用于上行传输的子帧，k≥1；The initial subframe is a first uplink subframe after the subframe n+k, and the uplink subframe is a subframe in which at least one symbol is not used for uplink transmission, k≥1;

所述起始子帧为子帧n+k后的第一个上行完整子帧，所述上行完整子帧为一个子帧内的全部符号都用于上行传输的上行子帧，k≥1。The initial subframe is the first uplink complete subframe after the subframe n+k, and the uplink complete subframe is an uplink subframe in which all symbols in one subframe are used for uplink transmission, and k≥1.
根据权利要求27或28所述的终端设备，其特征在于，所述接收单元在所述第一时间段内接收第一指示信令，包括以下方式中的至少一种：The terminal device according to claim 27 or 28, wherein the receiving unit receives the first indication signaling in the first time period, including at least one of the following manners:

所述接收单元具体用于在一次下行突发中的第一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；The receiving unit is specifically configured to receive the first indication signaling in a first subframe of a downlink burst, where the first time period is the one downlink burst;

所述接收单元具体用于在一次下行突发中的最后一个子帧上接收所述第一指示信令，其中，所述第一时间段为所述一次下行突发；The receiving unit is specifically configured to receive the first indication signaling in a last subframe of a downlink burst, where the first time period is the one downlink burst;

所述接收单元具体用于在所述第一时间段内的发现参考信号DRS子帧上接收所述第一指示信令。The receiving unit is specifically configured to receive the first indication signaling on a discovery reference signal DRS subframe in the first time period.
根据权利要求27至29中任一项所述的终端设备，其特征在于，所述时域位置信息包括以下情况中的至少一种：The terminal device according to any one of claims 27 to 29, wherein the time domain location information comprises at least one of the following:

所述第一PRACH资源在所述第二时间段内是否存在的信息；Information about whether the first PRACH resource exists in the second time period;

所述第一PRACH资源在所述第二时间段内所在子帧的位置信息；Position information of the subframe in which the first PRACH resource is located in the second time period;

所述第一PRACH资源在所述第二时间段内所在符号的位置信息。Location information of the symbol in which the first PRACH resource is located in the second time period.
根据权利要求27至30中任一项所述的终端设备，其特征在于，所述所述时域位置信息隐式指示所述第一PRACH资源上承载的随机接入前导序列的格式信息。The terminal device according to any one of claims 27 to 30, wherein the time domain location information implicitly indicates format information of a random access preamble sequence carried on the first PRACH resource.
根据权利要求27至30中任一项所述的终端设备，其特征在于，所述第一PRACH资源指示信息中包括所述第一PRACH资源在所述第二时间段内的配置索引，所述时域位置信息通过所述配置索引指示，所述配置索引还用于指示所述第一PRACH资源上承载的随机接入前导序列的格式、所述第一PRACH资源的频域位置、零相关区配置参数、根序列的生成参数和随机接入无线网络临时标识RA-RNTI中的至少一种，其中，所述根序列的生成参数用于生成所述随机接入前导序列的根序列。The terminal device according to any one of claims 27 to 30, wherein the first PRACH resource indication information includes a configuration index of the first PRACH resource in the second time period, The time domain location information is indicated by the configuration index, where the configuration index is further used to indicate a format of a random access preamble sequence carried on the first PRACH resource, a frequency domain location of the first PRACH resource, and a zero correlation zone. At least one of a configuration parameter, a root sequence generation parameter, and a random access radio network temporary identifier RA-RNTI, wherein the root sequence generation parameter is used to generate a root sequence of the random access preamble sequence.
根据权利要求27至30中任一项所述的终端设备，其特征在于，所述第一指示信令中还包括以下信息中的至少一项： The terminal device according to any one of claims 27 to 30, wherein the first indication signaling further includes at least one of the following information:

所述第一PRACH资源上承载的随机接入前导序列的格式；a format of a random access preamble sequence carried on the first PRACH resource;

所述第一PRACH资源的频域位置；a frequency domain location of the first PRACH resource;

零相关区配置参数；Zero correlation zone configuration parameters;

根序列的生成参数，用于生成所述随机接入前导序列的根序列；a generation parameter of the root sequence, used to generate a root sequence of the random access preamble sequence;

随机接入无线网络临时标识RA-RNTI。The random access wireless network temporary identity RA-RNTI.
根据权利要求27至31中任一项所述的终端设备，其特征在于，所述第一PRACH资源占用的频域位置包括以下情况中的至少一种：The terminal device according to any one of claims 27 to 31, wherein the frequency domain location occupied by the first PRACH resource comprises at least one of the following cases:

***带宽包括100个RB，将所述100个RB从1编号至100，所述第一PRACH资源占用的资源块RB的编号为10、11、12、13、14、15、86、87、88、89、90、91；The system bandwidth includes 100 RBs, and the 100 RBs are numbered from 1 to 100, and the number of resource blocks RB occupied by the first PRACH resource is 10, 11, 12, 13, 14, 15, 86, 87, 88. , 89, 90, 91;

***带宽包括50个RB，将所述50个RB从1编号至50，所述第一PRACH资源占用的资源块RB的编号为5、6、7、8、9、10、41、42、43、44、45、46。 The system bandwidth includes 50 RBs, and the 50 RBs are numbered from 1 to 50, and the resource blocks RB occupied by the first PRACH resource are numbered 5, 6, 7, 8, 9, 10, 41, 42, 43 44, 45, 46.