WO2018095193A1

WO2018095193A1 - Information transmission method, base station, system, and computer storage medium

Info

Publication number: WO2018095193A1
Application number: PCT/CN2017/107791
Authority: WO
Inventors: 孙军帅; 王莹莹; 黄学艳
Original assignee: ***通信有限公司研究院; ***通信集团公司
Priority date: 2016-11-22
Filing date: 2017-10-26
Publication date: 2018-05-31
Also published as: CN108093438A; CN108093438B

Abstract

The invention discloses an information transmission method, base station, system, and computer storage medium. The information transmission method comprises: adding, into a physical downlink control channel (PDCCH), resource information comprising location information of at least one downlink time-domain resource for at least one user equipment; and employing a time-domain multiplexing scrambling code to perform scrambling on the PDCCH, and broadcasting to the at least one user equipment the scrambled PDCCH.

Description

一种信息传输方法、基站、***及计算机存储介质Information transmission method, base station, system and computer storage medium

相关申请的交叉引用Cross-reference to related applications

本申请基于申请号为201611031357.1、申请日为2016年11月22日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。The present application is filed on the basis of the Chinese Patent Application No. PCT Application No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

技术领域Technical field

本发明涉及通信领域中的信令管理技术，尤其涉及一种信息传输方法、基站、***及计算机存储介质。The present invention relates to signaling management technologies in the field of communications, and in particular, to an information transmission method, a base station, a system, and a computer storage medium.

背景技术Background technique

随着移动互联网的推广，各种互联网业务需要通过无线移动网络实现终端和互联网服务器的相连，特别是B4G，甚至5G的宽带无线移动网络普及后，无线移动网络必将支撑更多的互联网业务。像QQ业务、微信业务、网页浏览业务、各种微博交互业务、网络及时聊天业务、网站登录处理等各种互联网应用，共同的特点就是数据发送不连续(时间间隔以秒级计算，与LTE的1ms的空口传输时间间隔相比)，业务速率低，突发的数据包可能很大，也可能很小，但是一旦有数据要发送，还要及时地发送出去，以避免影响用户的体验感知。With the promotion of mobile Internet, various Internet services need to connect terminals and Internet servers through wireless mobile networks. Especially after B4G and even 5G broadband wireless mobile networks are popularized, wireless mobile networks will certainly support more Internet services. Various Internet applications such as QQ service, WeChat service, web browsing service, various microblog interaction services, network instant chat service, website login processing, etc., the common feature is that data transmission is discontinuous (time interval is calculated in seconds, and LTE Compared with the 1ms air interface transmission time interval, the service rate is low, and the burst data packet may be large or small, but once data is sent, it must be sent out in time to avoid affecting the user's experience perception. .

下行突发非连续低速率业务数据发送时，每个用户的数据量非常少，需要分配的PRB数目不多，造成***带宽中出现过多的碎片降低了资源利用率和增加了资源分配的复杂度，可能会提升控制信道的冲突概率，增加资源碎片。 When the downlink burst non-continuous low-rate service data is sent, the amount of data per user is very small, and the number of PRBs to be allocated is small. As a result, excessive fragmentation in the system bandwidth reduces resource utilization and increases the complexity of resource allocation. Degrees may increase the probability of collision of control channels and increase resource fragmentation.

发明内容Summary of the invention

有鉴于此，本发明的目的在于提供一种信息传输方法、基站、***及计算机存储介质，能至少解决现有技术中存在的上述问题。In view of the above, an object of the present invention is to provide an information transmission method, a base station, a system, and a computer storage medium, which can solve at least the above problems in the prior art.

为达到上述目的，本发明的技术方案是这样实现的：In order to achieve the above object, the technical solution of the present invention is achieved as follows:

本发明实施例提供了一种信息传输方法，包括：An embodiment of the present invention provides an information transmission method, including:

将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；The resource information is added to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment;

利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH。The PDCCH is scrambled by using a time domain multiplexing scrambling code, and the scrambled PDCCH is broadcast to at least one user equipment.

本发明实施例提供了一种基站，所述基站包括：An embodiment of the present invention provides a base station, where the base station includes:

信息生成单元，用于将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；An information generating unit, configured to add the resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment;

通信单元，用于利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH。And a communication unit, configured to scramble the PDCCH by using a time domain multiplexing scrambling code, and broadcast the scrambled PDCCH to the at least one user equipment.

处理器，将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；利用时域复用扰码对PDCCH进行加扰；The processor adds the resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment, and uses the time domain multiplexing scrambling code to the PDCCH. Perform scrambling;

通信接口，向至少一个用户设备广播加扰后的PDCCH。The communication interface broadcasts the scrambled PDCCH to the at least one user equipment.

本发明实施例提供了一种信息传输***，所述***包括：基站以及至少一个用户设备；其中，An embodiment of the present invention provides an information transmission system, where the system includes: a base station and at least one user equipment;

基站，用于将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH；a base station, configured to add resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment; and using a time domain multiplexing scrambling code pair The PDCCH is scrambled to at least one user equipment Broadcast PDCCH after scrambling;

用户设备，用于基于接收到的所述PDCCH确定对应的下行时域资源的位置信息，基于所述下行时域资源的位置信息进行PDSCH的接收。The user equipment is configured to determine location information of the corresponding downlink time domain resource based on the received PDCCH, and perform PDSCH reception based on the location information of the downlink time domain resource.

本发明实施例提供了一种通信装置，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，Embodiments of the present invention provide a communication apparatus, including: a processor and a memory for storing a computer program executable on a processor,

其中，所述处理器用于运行所述计算机程序时，执行前述方法的步骤。Wherein the processor is configured to perform the steps of the foregoing method when the computer program is run.

本发明实施例提供了一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实现前述方法步骤。Embodiments of the present invention provide a computer storage medium storing computer executable instructions that implement the foregoing method steps when the computer executable instructions are executed.

本发明实施例提供了一种信息传输方法、基站、***及计算机存储介质，能够通过一个PDCCH针对至少一个用户设备分配对应的资源信息，以使得用户设备基于接收到的资源信息进行业务数据的接收。如此，就避免了分别向多个用户设备发送对应的资源分配信息所产生的资源碎片，并且由于统一进行资源分配，减少了控制信道之间产生冲突的概率。The embodiment of the present invention provides an information transmission method, a base station, a system, and a computer storage medium, which are capable of allocating corresponding resource information to at least one user equipment through one PDCCH, so that the user equipment performs service data reception based on the received resource information. . In this way, resource fragments generated by respectively transmitting corresponding resource allocation information to multiple user equipments are avoided, and since resource allocation is uniformly performed, the probability of collision between control channels is reduced.

附图说明DRAWINGS

图1为本发明实施例信息传输方法流程示意图；1 is a schematic flowchart of an information transmission method according to an embodiment of the present invention;

图2为本发明实施例传输周期示意图；2 is a schematic diagram of a transmission cycle according to an embodiment of the present invention;

图3为本发明实施例发送下行数据以及接收反馈信息之间的二义性示意图；3 is a schematic diagram of ambiguity between sending downlink data and receiving feedback information according to an embodiment of the present invention;

图4为本发明实施例重新分配下一轮复用周期示意图；4 is a schematic diagram of reallocating a next round of multiplexing cycle according to an embodiment of the present invention;

图5为本发明实施例基站组成结构示意图1；5 is a schematic structural diagram 1 of a base station structure according to an embodiment of the present invention;

图6为本发明实施例***组成结构示意图；6 is a schematic structural diagram of a system structure according to an embodiment of the present invention;

图7为本发明实施例用户设备组成结构示意图；FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;

图8为本发明实施例基站组成结构示意图2。 FIG. 8 is a schematic structural diagram 2 of a base station structure according to an embodiment of the present invention.

具体实施方式detailed description

下面结合附图及具体实施例对本发明再作进一步详细的说明。The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

实施例一、Embodiment 1

本发明实施例提供了一种信息传输方法，如图1所示，包括：An embodiment of the present invention provides an information transmission method, as shown in FIG. 1 , including:

步骤101：将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；Step 101: Add resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment;

步骤102：利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH。Step 102: The PDCCH is scrambled by using a time domain multiplexing scrambling code, and the scrambled PDCCH is broadcast to at least one user equipment.

这里，所述至少一个下行时域资源的位置信息可以为至少一个用户设备接收下行业务数据所在的下行共享信道的子帧位置。比如，具体可以为子帧编号。Here, the location information of the at least one downlink time domain resource may be a subframe position of the downlink shared channel where the at least one user equipment receives the downlink service data. For example, the subframe number can be specifically.

另外，所述资源信息可以具体的以资源块RB为单位进行资源的分配，也就是说，即包括有资源块所对应的时域资源也包括有其对应的频域资源的位置信息。In addition, the resource information may specifically allocate resources in units of resource blocks RB, that is, the time domain resources corresponding to the resource blocks also include location information of the corresponding frequency domain resources.

进一步需要指出的是，所述时域复用周期为半个***帧的N倍；其中，N为整数。It should be further noted that the time domain multiplexing period is N times of a half system frame; wherein N is an integer.

比如，具体来说，可以为半***帧的2N倍，即时域复用周期T＝2*N*HalfSFN，N∈{1,2,3,...,M}，M的取值不要过大，一般不超过8(与HARQ的最大重传次数相关，可以按照一个数据包最大重传4次的方式设置)。HalfSFN为半个***帧，其时间长度可以为5ms。For example, specifically, it can be 2N times of a half system frame, and the real-time domain multiplexing period T=2*N*HalfSFN, N∈{1,2,3,...,M}, the value of M should not be exceeded. Large, generally no more than 8 (related to the maximum number of retransmissions of HARQ, can be set by the maximum retransmission of a packet 4 times). HalfSFN is a half system frame and its length can be 5ms.

所述向至少一个用户设备广播加扰后的PDCCH还包括：The broadcasting the scrambled PDCCH to the at least one user equipment further includes:

在时域复用周期的预设子帧中的控制格式指示CFI区域内，向至少一个用户设备广播加扰后的PDCCH。The control format in the preset subframe of the time domain multiplexing period indicates that the scrambled PDCCH is broadcast to the at least one user equipment in the CFI area.

所述时域复用周期的预设子帧，为： The preset subframe of the time domain multiplexing period is:

所述时域复用周期中的第一个子帧作为所述预设子帧；The first subframe in the time domain multiplexing period is used as the preset subframe;

或者，所述时域复用周期的第一个子帧之前的一个子帧作为所述预设子帧。Or, one subframe before the first subframe of the time domain multiplexing period is used as the preset subframe.

也就是说，PDCCH：在时域复用周期T开始第一个子帧的CFI(Control Format Indicator：控制格式指示)区域内。使用专用的C-RNTI加扰，即命名为TFM-RNTI(Time Field Multiplexing RNTI：时域复用RNTI)。TFM-RNTI：为时域复用专用RNTI，对PDCCH进行加扰，取值为0～65535之间闲置的任何一个数据即可。That is, the PDCCH is within the CFI (Control Format Indicator) region of the first subframe starting in the time domain multiplexing period T. The dedicated C-RNTI scrambling is used, which is named TFM-RNTI (Time Field Multiplexing RNTI). TFM-RNTI: Decodes the PDCCH for the time domain multiplexing dedicated RNTI, and takes any data that is idle between 0 and 65535.

进一步地，PDCCH所占用的物理资源的CCE等级取1/2/4/8中的一种。Further, the CCE level of the physical resource occupied by the PDCCH is one of 1/2/4/8.

PDCCH中用于传输资源信息的格式可以采用的下行控制信息(DCI，Downlink Control Information)格式中的DCI1A相似，其中，所述DCI 1A中可以包括的字段有：对PDSCH的调度压缩模式、PDSCH的RB分配及起始位置、MCS、重传次数(HARQ process number)以及对PUCCH的功率控制信息等等字段；具体来说，需要将DCI 1A中的HARQ process number–3 bits(FDD)、4 bits(TDD)；New data indicator–1 bit、Redundancy version–2 bits、TPC command for PUCCH–2 bits字段要去除或者全部置成0。The format used for transmitting the resource information in the PDCCH may be similar to the DCI1A in the Downlink Control Information (DCI) format, where the DCI 1A may include: a scheduling compression mode for the PDSCH, and a PDSCH. Fields such as RB allocation and starting position, MCS, HARQ process number, and power control information for PUCCH; specifically, HARQ process number – 3 bits (FDD), 4 bits in DCI 1A are required. (TDD); New data indicator–1 bit, Redundancy version–2 bits, TPC command for PUCCH–2 bits field are to be removed or all set to 0.

需要指出的是，除了上述一些字段设置为空或者设置为0之外，在PDCCH中必要添加的为资源位置(比如，PRB的位置)、时域复用周期的起始以及终止位置It should be noted that, besides some of the above fields are set to be empty or set to 0, it is necessary to add a resource location (such as the location of the PRB), the start and end of the time domain multiplexing period, in the PDCCH.

在完成上述PDCCH的发送之后，基站会向每一个用户设备开始发送PDSCH，也就是物理下行共享信道，通过物理下行共享信息发出针对每一个用户设备的下行业务信息。具体的：基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置，并通过所述物理下行共享信道中向对应的用户设备发送业务数据。After the foregoing PDCCH is transmitted, the base station starts to send a PDSCH, that is, a physical downlink shared channel, to each user equipment, and sends downlink service information for each user equipment by using physical downlink shared information. Specifically, determining, according to the location information of the downlink time domain resource of the at least one user equipment, the subframe position of the physical downlink shared channel corresponding to each user equipment, and correspondingly speaking through the physical downlink shared channel User setting Prepare to send business data.

其中，PDSCH发送业务数据的时候，使用用户设备对应的C-RNTI进行加扰，用户设备根据解扰之后正确与否判断数据是否是发送给自己的。When the PDSCH sends the service data, the C-RNTI corresponding to the user equipment is used for scrambling, and the user equipment determines whether the data is sent to itself according to the correctness after the descrambling.

PDSCH资源：根据具体的业务类型规划合适的PRB数目，并根据检测的数据量变化调整PRB的数目。PDSCH resources: Plan the appropriate number of PRBs according to the specific service type, and adjust the number of PRBs according to the detected data volume changes.

在发送完上述业务信息的基础之上，需要判断是否进行HARQ重传，具体来说：基于用户设备对应的物理下行共享信道的子帧位置确定重传进程标识；当确定所述用户设备需要进行重传时，基于所述重传进程标识确定重传所述物理下行共享信道的子帧位置。After the foregoing service information is sent, it is determined whether the HARQ retransmission is performed. Specifically, the retransmission process identifier is determined based on the subframe position of the physical downlink shared channel corresponding to the user equipment; when it is determined that the user equipment needs to be performed. When retransmitting, determining, according to the retransmission process identifier, retransmitting a subframe position of the physical downlink shared channel.

因为没有PDCCH在每个TTI指示HARQ进程和重传信息，故采用同步HARQ方式，HARQ的进程ID即为用户收到数据的空口子帧号在HalfSFN(取值0～4)或者SFN(取值0～9)的索引；如果重传，则在时域周期T所包含的HalfSFN或者SFN的同一个子帧索引处重传。RV版本通过信令确定，然后按照重传的次数依次使用。Because there is no PDCCH indicating the HARQ process and the retransmission information in each TTI, the synchronous HARQ mode is adopted, and the process ID of the HARQ is the air interface subframe number of the data received by the user in HalfSFN (value 0 to 4) or SFN (value) The index of 0 to 9); if retransmitted, it is retransmitted at the same subframe index of the HalfSFN or SFN included in the time domain period T. The RV version is determined by signaling and then used sequentially according to the number of retransmissions.

HalfSFN和SFN模式的选择需要根据上下行子帧配比以及空口数据发送的时延确定，只要全部子帧号索引不出现二义性即可。The selection of the Half SFN and the SFN mode needs to be determined according to the uplink and downlink subframe ratio and the delay of the air interface data transmission, as long as all the subframe number indexes do not appear ambiguous.

其中，HalfSFN和SFN模式的选择比如：Cfg2：1UL:3DL，因为DL比较多，就可以选择halfSFN模式。Cfg0：3UL:1DL，因为DL比较少，就可以选择SFN模式。Among them, the choice of HalfSFN and SFN modes is as follows: Cfg2: 1UL: 3DL, because there are many DLs, the halfSFN mode can be selected. Cfg0: 3UL: 1DL, because DL is relatively small, you can choose SFN mode.

如图3所示，子帧1(A)的上行反馈时延超过了子帧1(B)，导致该反馈产生二义性。As shown in FIG. 3, the uplink feedback delay of subframe 1 (A) exceeds subframe 1 (B), resulting in ambiguity of the feedback.

进一步地，所述方法还包括：所述基站向用户设备发送控制信息，通过所述控制信息控制用户设备反馈时间提前量(TA)。目前的同步机制需要借助随机接入过程，然后在发送TA；而本实施例提供的方案定期发送TA，确保不触发随机接入，从而进一步减少同步所耗费的时间。 Further, the method further includes: the base station sending control information to the user equipment, and controlling, by the control information, the user equipment to feed back a timing advance (TA). The current synchronization mechanism requires a random access procedure and then sends a TA. The scheme provided in this embodiment periodically sends a TA to ensure that random access is not triggered, thereby further reducing the time taken for synchronization.

关于基站侧进行信息传输方法的处理流程具体可以包括：The processing flow of the information transmission method performed by the base station side may specifically include:

1、使用TFM-RNTI的PDCCH广播建立时域复用物理信道，在时域周期T中，分配的PRB在每个TTI固定使用。1. Establish a time domain multiplexed physical channel using the PDCCH broadcast of the TFM-RNTI. In the time domain period T, the allocated PRB is fixedly used in each TTI.

2、在时域周期T依次发送每个用户的数据，并把发送数据时的子帧号在HalfSFN或者SFN中的索引作为数据的HARQ进程标识，已备重传。2. The data of each user is sequentially transmitted in the time domain period T, and the index of the subframe number in the HalfSFN or the SFN when the data is transmitted is used as the HARQ process identifier of the data, and is ready for retransmission.

3、如果基站在时域周期T内把所有用户的数据都传输完毕，且没有重传，则发起下一轮的时域周期和资源动态调换，或者根据数据发送情况再行确定。关于时域复用周期的改变可以参见图4，通过图4可以看出虚线所示的为下一轮时域周期，下一轮时域周期与本轮时域周期的起始位置可以不同，长度也可以不同。3. If the base station transmits all the users' data in the time domain period T and does not retransmit, then the next round of the time domain period and the resource dynamic exchange are initiated, or determined according to the data transmission situation. For the change of the time domain multiplexing period, refer to FIG. 4. It can be seen from FIG. 4 that the next round of the time domain period is shown by the dotted line, and the next round of the time domain period and the starting position of the current time domain period may be different. The length can also be different.

4、在时域周期T内，基站可以通过给用户发送Time Advance Command MAC Control Element控制帧，通过终端上报TA Command完成上行同步和时间对齐。4. In the time domain period T, the base station can send the Time Advance Command MAC Control Element control frame to the user, and report the uplink synchronization and time alignment through the terminal reporting TA Command.

可见，通过采用上述方案，就能够通过一个PDCCH针对至少一个用户设备分配对应的资源信息，以使得用户设备基于接收到的资源信息进行业务数据的接收。如此，就避免了分别向多个用户设备发送对应的资源分配信息所产生的资源碎片，并且由于统一进行资源分配，减少了控制信道之间产生冲突的概率。It can be seen that, by adopting the foregoing solution, corresponding resource information can be allocated to at least one user equipment by using one PDCCH, so that the user equipment performs service data reception based on the received resource information. In this way, resource fragments generated by respectively transmitting corresponding resource allocation information to multiple user equipments are avoided, and since resource allocation is uniformly performed, the probability of collision between control channels is reduced.

实施例二、 Embodiment 2

本发明实施例提供了一种基站，如图5所示，包括：An embodiment of the present invention provides a base station, as shown in FIG. 5, including:

信息生成单元51，用于将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；The information generating unit 51 is configured to add the resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment;

通信单元52，用于利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH。The communication unit 52 is configured to scramble the PDCCH by using a time domain multiplexing scrambling code, to at least one The user equipment broadcasts the scrambled PDCCH.

通信单元52，用于在时域复用周期的预设子帧中的控制格式指示CFI区域内，向至少一个用户设备广播加扰后的PDCCH。The communication unit 52 is configured to broadcast the scrambled PDCCH to the at least one user equipment in the control format indication CFI area in the preset subframe of the time domain multiplexing period.

所述时域复用周期的预设子帧，为：The preset subframe of the time domain multiplexing period is:

也就是说，PDCCH：在时域复用周期T开始第一个子帧的CFI(Control Format Indicator：控制格式指示)区域内。使用专用的C-RNTI加扰，即命名为TFM-RNTI(Time Field Multiplexing RNTI：时域复用RNTI)。TFM-RNTI：为时域复用专用RNTI，对PDCCH进行加扰，取值为0～65535之间闲置的任何一个数据即可。 That is, the PDCCH is within the CFI (Control Format Indicator) region of the first subframe starting in the time domain multiplexing period T. The dedicated C-RNTI scrambling is used, which is named TFM-RNTI (Time Field Multiplexing RNTI). TFM-RNTI: Decodes the PDCCH for the time domain multiplexing dedicated RNTI, and takes any data that is idle between 0 and 65535.

需要指出的是，除了上述一些字段设置为空或者设置为0之外，在PDCCH中必要添加的为资源位置(比如，RB的位置)、时域复用周期的起始以及终止位置It should be noted that, besides some of the above fields are set to be empty or set to 0, it is necessary to add a resource location (for example, a location of an RB), a start and a termination location of a time domain multiplexing period in the PDCCH.

在完成上述PDCCH的发送之后，基站会向每一个用户设备开始发送PDSCH，也就是物理下行共享信道，通过物理下行共享信息发出针对每一个用户设备的下行业务信息。具体的：通信单元52，用于基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置，并通过所述物理下行共享信道中向对应的用户设备发送业务数据。After the foregoing PDCCH is transmitted, the base station starts to send a PDSCH, that is, a physical downlink shared channel, to each user equipment, and sends downlink service information for each user equipment by using physical downlink shared information. Specifically, the communication unit 52 is configured to determine, according to the location information of the downlink time domain resource of the at least one user equipment, the subframe position of the physical downlink shared channel corresponding to each user equipment, and pass the physical The service data is sent to the corresponding user equipment in the downlink shared channel.

在发送完上述业务信息的基础之上，需要判断是否进行HARQ重传，具体来说：所述基站还包括： On the basis of the foregoing service information, it is required to determine whether to perform the HARQ retransmission. Specifically, the base station further includes:

重传单元53，用于基于用户设备对应的物理下行共享信道的子帧位置确定重传进程标识；当确定所述用户设备需要进行重传时，基于所述重传进程标识确定重传所述物理下行共享信道的子帧位置。The retransmission unit 53 is configured to determine, according to a subframe position of the physical downlink shared channel corresponding to the user equipment, a retransmission process identifier, and when determining that the user equipment needs to perform retransmission, determining, according to the retransmission process identifier, retransmission The subframe position of the physical downlink shared channel.

进一步地，所述通信单元，用于向用户设备发送控制信息，通过所述控制信息控制用户设备反馈时间提前量(TA)。目前的同步机制需要借助随机接入过程，然后在发送TA；而本实施例提供的方案定期发送TA，确保不触发随机接入，从而进一步减少同步所耗费的时间。Further, the communication unit is configured to send control information to the user equipment, and control, by the control information, the user equipment to feed back a timing advance (TA). The current synchronization mechanism requires a random access procedure and then sends a TA. The scheme provided in this embodiment periodically sends a TA to ensure that random access is not triggered, thereby further reducing the time taken for synchronization.

实施例三、 Embodiment 3

本发明实施例提供了一种信息传输***，如图6所示，所述***包括：基站61以及至少一个用户设备62；其中，An embodiment of the present invention provides an information transmission system. As shown in FIG. 6, the system includes: a base station 61 and at least one user equipment 62;

基站61，用于将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH；The base station 61 is configured to add the resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment, and the time domain multiplexing scrambling code The PDCCH is scrambled, and the scrambled PDCCH is broadcast to at least one user equipment;

用户设备62，用于基于接收到的所述PDCCH确定对应的下行时域资源的位置信息，基于所述下行时域资源的位置信息进行PDSCH的接收。The user equipment 62 is configured to determine location information of the corresponding downlink time domain resource based on the received PDCCH, and perform PDSCH reception based on the location information of the downlink time domain resource.

所述时域复用周期中的第一个子帧作为所述预设子帧； The first subframe in the time domain multiplexing period is used as the preset subframe;

在完成上述PDCCH的发送之后，基站会向每一个用户设备开始发送PDSCH，也就是物理下行共享信道，通过物理下行共享信息发出针对每一个用户设备的下行业务信息。具体的：基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置，并通过所述物理下行共享信道中向对应的用户设备发送业务数据。 After the foregoing PDCCH is transmitted, the base station starts to send a PDSCH, that is, a physical downlink shared channel, to each user equipment, and sends downlink service information for each user equipment by using physical downlink shared information. Specifically, determining, according to the location information of the downlink time domain resource of the at least one user equipment, the subframe position of the physical downlink shared channel corresponding to each user equipment, and correspondingly speaking through the physical downlink shared channel User equipment sends business data.

在发送完上述业务信息的基础之上，需要判断是否进行HARQ重传，具体来说：所述基站还包括：On the basis of the foregoing service information, it is required to determine whether to perform the HARQ retransmission. Specifically, the base station further includes:

如图7所示，所述用户设备，包括：As shown in FIG. 7, the user equipment includes:

信息接收单元71，用于接收所述基站下发的控制信息，其中，所述控制信息中至少包括有时间提前量上传控制信息；The information receiving unit 71 is configured to receive control information that is sent by the base station, where the control information includes at least time advance amount uploading control information;

信息发送单元72，用于基于所述控制信息，向所述基站上报时间提前量.The information sending unit 72 is configured to report time advance to the base station based on the control information. the amount.

实施例四、Embodiment 4

本发明实施例提供了一种基站，如图8所示，包括：An embodiment of the present invention provides a base station, as shown in FIG. 8, including:

处理器81，将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；利用时域复用扰码对PDCCH进行加扰；The processor 81 adds the resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment, and uses the time domain multiplexing scrambling code pair. The PDCCH is scrambled;

通信接口82，向至少一个用户设备广播加扰后的PDCCH。The communication interface 82 broadcasts the scrambled PDCCH to the at least one user equipment.

所述向至少一个用户设备广播加扰后的PDCCH还包括： The broadcasting the scrambled PDCCH to the at least one user equipment further includes:

通信接口，在时域复用周期的预设子帧中的控制格式指示CFI区域内，向至少一个用户设备广播加扰后的PDCCH。The communication interface broadcasts the scrambled PDCCH to the at least one user equipment in the control format indication CFI area in the preset subframe of the time domain multiplexing period.

在完成上述PDCCH的发送之后，基站会向每一个用户设备开始发送PDSCH，也就是物理下行共享信道，通过物理下行共享信息发出针对每一个用户设备的下行业务信息。具体的：所述处理器，基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置；After the foregoing PDCCH is transmitted, the base station starts to send a PDSCH to each user equipment, that is, a physical downlink shared channel, and sends out a physical downlink shared information for each Downstream service information of user equipments. Specifically, the processor determines, according to the location information of the downlink time domain resource of the at least one user equipment, the subframe position of the physical downlink shared channel corresponding to each user equipment;

所述通信接口，通过所述物理下行共享信道中向对应的用户设备发送业务数据。The communication interface sends service data to the corresponding user equipment in the physical downlink shared channel.

在发送完上述业务信息的基础之上，需要判断是否进行HARQ重传，具体来说：所述处理器，基于用户设备对应的物理下行共享信道的子帧位置确定重传进程标识；当确定所述用户设备需要进行重传时，基于所述重传进程标识确定重传所述物理下行共享信道的子帧位置。On the basis of the foregoing service information, it is required to determine whether to perform the HARQ retransmission. Specifically, the processor determines the retransmission process identifier based on the subframe position of the physical downlink shared channel corresponding to the user equipment; When the user equipment needs to perform retransmission, it is determined that the subframe position of the physical downlink shared channel is retransmitted based on the retransmission process identifier.

如图3所示，子帧1(A)的上行反馈时延超过了子帧1(B)，导致该反馈产生二义性。 As shown in FIG. 3, the uplink feedback delay of subframe 1 (A) exceeds subframe 1 (B), resulting in ambiguity of the feedback.

本发明实施例中一种基站，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，A base station in an embodiment of the present invention includes: a processor and a memory for storing a computer program executable on the processor,

其中，所述处理器用于运行所述计算机程序时，执行前述实施例一的方法步骤，这里不再进行赘述。The method steps of the foregoing Embodiment 1 are performed when the processor is used to run the computer program, and details are not described herein.

本发明实施例提供的一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实施前述实施例一的方法步骤。The embodiment of the present invention provides a computer storage medium, where the computer storage medium stores computer executable instructions, and when the computer executable instructions are executed, the method steps of the foregoing first embodiment are implemented.

本发明实施例所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时，也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，本发明实施例的技术方案本质上或者说对现有技术做出贡献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、网络设备、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。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。The integrated modules described in the embodiments of the present invention may also be stored in a computer readable storage medium if they are implemented in the form of software functional modules and sold or used as separate products. Based on such understanding, the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computer device (which may be a personal computer, a network device, or a network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (ROM), and a random access memory (RAM, Random). A variety of media that can store program code, such as Access Memory, disk, or optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

以上所述，仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。 The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Claims

一种信息传输方法，应用于基站，其特征在于，所述方法包括：An information transmission method is applied to a base station, where the method includes:

将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；The resource information is added to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment;

利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH。The PDCCH is scrambled by using a time domain multiplexing scrambling code, and the scrambled PDCCH is broadcast to at least one user equipment.
根据权利要求1所述的方法，其特征在于，所述向至少一个用户设备广播加扰后的PDCCH还包括：The method according to claim 1, wherein the broadcasting the scrambled PDCCH to the at least one user equipment further comprises:

在时域复用周期的预设子帧中的控制格式指示CFI区域内，向至少一个用户设备广播加扰后的PDCCH。The control format in the preset subframe of the time domain multiplexing period indicates that the scrambled PDCCH is broadcast to the at least one user equipment in the CFI area.
根据权利要求2所述的方法，其特征在于，所述时域复用周期的预设子帧，为：The method according to claim 2, wherein the preset subframe of the time domain multiplexing period is:

所述时域复用周期中的第一个子帧作为所述预设子帧；The first subframe in the time domain multiplexing period is used as the preset subframe;

或者，所述时域复用周期的第一个子帧之前的一个子帧作为所述预设子帧。Or, one subframe before the first subframe of the time domain multiplexing period is used as the preset subframe.
根据权利要求2或3所述的方法，其特征在于，所述时域复用周期为半个***帧的N倍；其中，N为整数。The method according to claim 2 or 3, wherein the time domain multiplexing period is N times a half system frame; wherein N is an integer.
根据权利要求1所述的方法，其特征在于，所述方法还包括：The method of claim 1 further comprising:

基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置，并通过所述物理下行共享信道中向对应的用户设备发送业务数据。Determining, according to the location information of the downlink time domain resource of the at least one user equipment, the subframe position of the physical downlink shared channel corresponding to each user equipment, and using the physical downlink shared channel to the corresponding user equipment Send business data.
根据权利要求5所述的方法，其特征在于，所述方法还包括：The method of claim 5, wherein the method further comprises:

基于用户设备对应的物理下行共享信道的子帧位置确定重传进程标识；Determining a retransmission process identifier based on a subframe position of the physical downlink shared channel corresponding to the user equipment;

当确定所述用户设备需要进行重传时，基于所述重传进程标识确定重传所述物理下行共享信道的子帧位置。 When it is determined that the user equipment needs to perform retransmission, determining, according to the retransmission process identifier, retransmitting a subframe position of the physical downlink shared channel.
一种基站，其特征在于，所述基站包括：A base station, the base station includes:

信息生成单元，用于将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；An information generating unit, configured to add the resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment;

通信单元，用于利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH。And a communication unit, configured to scramble the PDCCH by using a time domain multiplexing scrambling code, and broadcast the scrambled PDCCH to the at least one user equipment.
根据权利要求7所述的基站，其特征在于，所述通信单元，用于在时域复用周期的预设子帧中的控制格式指示CFI区域内，向至少一个用户设备广播加扰后的PDCCH；The base station according to claim 7, wherein the communication unit is configured to broadcast the scrambled to the at least one user equipment in a control format indication CFI area in a preset subframe of the time domain multiplexing period. PDCCH;

其中，所述时域复用周期的预设子帧，为：The preset subframe of the time domain multiplexing period is:

所述时域复用周期中的第一个子帧作为所述预设子帧；The first subframe in the time domain multiplexing period is used as the preset subframe;

或者，所述时域复用周期的第一个子帧之前的一个子帧作为所述预设子帧。Or, one subframe before the first subframe of the time domain multiplexing period is used as the preset subframe.
根据权利要求8所述的基站，其特征在于，所述时域复用周期为半个***帧的N倍；其中，N为整数。The base station according to claim 8, wherein the time domain multiplexing period is N times a half system frame; wherein N is an integer.
根据权利要求7所述的基站，其特征在于，所述通信单元，用于基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置，并通过所述物理下行共享信道中向对应的用户设备发送业务数据。The base station according to claim 7, wherein the communication unit is configured to determine, according to the location information of the downlink time domain resource of the at least one user equipment, the physical downlink sharing corresponding to each user equipment. The subframe position of the channel, and the service data is sent to the corresponding user equipment in the physical downlink shared channel.
根据权利要求10所述的基站，其特征在于，所述基站还包括：The base station according to claim 10, wherein the base station further comprises:

重传单元，用于基于用户设备对应的物理下行共享信道的子帧位置确定重传进程标识；当确定所述用户设备需要进行重传时，基于所述重传进程标识确定重传所述物理下行共享信道的子帧位置。a retransmission unit, configured to determine, according to a subframe position of the physical downlink shared channel corresponding to the user equipment, a retransmission process identifier; when determining that the user equipment needs to perform retransmission, determining, according to the retransmission process identifier, retransmission of the physical The subframe position of the downlink shared channel.
一种基站，其特征在于，所述基站包括：A base station, the base station includes:

处理器，将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；利用时域复用扰码对PDCCH进行加扰；The processor adds the resource information to the physical downlink control channel PDCCH, where the resource information includes at least one downlink time domain resource for the at least one user equipment. Location information; scrambling the PDCCH by using a time domain multiplexing scrambling code;

通信接口，向至少一个用户设备广播加扰后的PDCCH。The communication interface broadcasts the scrambled PDCCH to the at least one user equipment.
根据权利要求12所述的基站，其特征在于，所述通信接口，在时域复用周期的预设子帧中的控制格式指示CFI区域内，向至少一个用户设备广播加扰后的PDCCH；The base station according to claim 12, wherein the communication interface broadcasts the scrambled PDCCH to at least one user equipment in a control format indication CFI area in a preset subframe of the time domain multiplexing period;

其中，所述时域复用周期的预设子帧，为：The preset subframe of the time domain multiplexing period is:

所述时域复用周期中的第一个子帧作为所述预设子帧；The first subframe in the time domain multiplexing period is used as the preset subframe;

或者，所述时域复用周期的第一个子帧之前的一个子帧作为所述预设子帧。Or, one subframe before the first subframe of the time domain multiplexing period is used as the preset subframe.
根据权利要求13所述的基站，其特征在于，所述时域复用周期为半个***帧的N倍；其中，N为整数。The base station according to claim 13, wherein said time domain multiplexing period is N times a half of a system frame; wherein N is an integer.
根据权利要求12所述的基站，其特征在于，所述处理器，基于所述资源信息中针对至少一个用户设备的下行时域资源的位置信息，确定每一个用户设备对应的物理下行共享信道的子帧位置；The base station according to claim 12, wherein the processor determines, according to the location information of the downlink time domain resource of the at least one user equipment, the physical downlink shared channel corresponding to each user equipment. Subframe position;

所述通信接口，通过所述物理下行共享信道中向对应的用户设备发送业务数据。The communication interface sends service data to the corresponding user equipment in the physical downlink shared channel.
根据权利要求15所述的基站，其特征在于，所述处理器，基于用户设备对应的物理下行共享信道的子帧位置确定重传进程标识；当确定所述用户设备需要进行重传时，基于所述重传进程标识确定重传所述物理下行共享信道的子帧位置。The base station according to claim 15, wherein the processor determines a retransmission process identifier based on a subframe position of a physical downlink shared channel corresponding to the user equipment; and when determining that the user equipment needs to perform retransmission, based on The retransmission process identifier determines a subframe position for retransmitting the physical downlink shared channel.
一种信息传输***，其特征在于，所述***包括：基站以及至少一个用户设备；其中，An information transmission system, comprising: a base station and at least one user equipment; wherein

基站，用于将资源信息添加至物理下行控制信道PDCCH中；其中，所述资源信息中至少包括有针对至少一个用户设备的至少一个下行时域资源的位置信息；利用时域复用扰码对PDCCH进行加扰，向至少一个用户设备广播加扰后的PDCCH； a base station, configured to add resource information to the physical downlink control channel PDCCH, where the resource information includes at least location information of at least one downlink time domain resource for the at least one user equipment; and using a time domain multiplexing scrambling code pair The PDCCH is scrambled, and the scrambled PDCCH is broadcast to at least one user equipment;

用户设备，用于基于接收到的所述PDCCH确定对应的下行时域资源的位置信息，基于所述下行时域资源的位置信息进行PDSCH的接收。The user equipment is configured to determine location information of the corresponding downlink time domain resource based on the received PDCCH, and perform PDSCH reception based on the location information of the downlink time domain resource.
根据权利要求17所述的***，其特征在于，所述用户设备，包括：The system of claim 17, wherein the user equipment comprises:

信息接收单元，用于接收所述基站下发的控制信息，其中，所述控制信息中至少包括有时间提前量上传控制信息；An information receiving unit, configured to receive control information delivered by the base station, where the control information includes at least time advance amount uploading control information;

信息发送单元，用于基于所述控制信息，向所述基站上报时间提前量。And an information sending unit, configured to report a timing advance to the base station based on the control information.
一种基站，包括：处理器和用于存储能够在处理器上运行的计算机程序的存储器，A base station includes: a processor and a memory for storing a computer program executable on the processor,

其中，所述处理器用于运行所述计算机程序时，执行权利要求1-6任一项所述方法的步骤。Wherein the processor is operative to perform the steps of the method of any of claims 1-6 when the computer program is run.
一种计算机存储介质，所述计算机存储介质存储有计算机可执行指令，所述计算机可执行指令被执行时实现权利要求1-6任一项所述的方法步骤。 A computer storage medium storing computer executable instructions that, when executed, implement the method steps of any of claims 1-6.