WO2020025053A1

WO2020025053A1 - Method and device for recovery from communication failure

Info

Publication number: WO2020025053A1
Application number: PCT/CN2019/099067
Authority: WO
Inventors: 张荻; 刘鹍鹏; 管鹏
Original assignee: 华为技术有限公司
Priority date: 2018-08-03
Filing date: 2019-08-02
Publication date: 2020-02-06

Abstract

Provided are a method and device for recovery from a communication failure. The method comprises: after determination of occurrence of a communication failure on a first downlink resource, a terminal apparatus transmitting, to a network apparatus, and on a resource for transmitting channel state information (CSI), indication information indicating the communication failure on the first downlink resource. The method for recovery from a communication failure provided in an embodiment of the present invention facilitates reducing resource overheads of a network apparatus.

Description

一种通信失败恢复的方法和装置Method and device for communication failure recovery

本申请要求于2018年8月3日提交中国专利局、申请号为201810880175.4、申请名称为“一种通信失败恢复的方法和装置”的中国专利申请，2018年11月2日提交中国专利局、申请号为201811303580.6、申请名称为“一种通信失败恢复的方法和装置”的中国专利申请以及2018年11月9日提交中国专利局、申请号为201811334417.6、申请名称为“一种通信失败恢复的方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application requires a Chinese patent application filed with the Chinese Patent Office on August 3, 2018, with an application number of 201810880175.4, and the application name is "A Method and Device for Restoration of Communication Failure", and submitted to the Chinese Patent Office on November 2, 2018, Chinese patent application with application number 201811303580.6, application name "A Method and Device for Recovery from Communication Failure", and application to the Chinese Patent Office on November 9, 2018, application number 201811334417.6, and application name "for a communication failure recovery method" Method and Apparatus ", the priority of the Chinese patent application, the entire contents of which are incorporated herein by reference.

技术领域Technical field

本申请涉及通信领域，并且更具体地，涉及一种通信失败恢复的方法和装置。The present application relates to the field of communications, and more particularly, to a method and apparatus for recovering from a communication failure.

背景技术Background technique

为了满足单用户峰值速率和***容量提升的要求，一种最直接的办法就是增加***传输带宽，增强长期演进(advanced long term evolution，LTE-A)技术中引入了载波聚合(carrier aggregation，CA)，载波聚合是将2个或者更多的载波单元(component carrier，CC)聚合在一起以支持更大的传输带宽，每个CC由1个或者多个物理资源块(physical resource block，PRB)组成。In order to meet the requirements of single user peak rate and system capacity improvement, one of the most direct methods is to increase system transmission bandwidth and enhance advanced long term evolution (LTE-A) technology. Carrier aggregation (CA) is introduced. Carrier aggregation is the aggregation of two or more carrier units (CCs) to support a larger transmission bandwidth. Each CC is composed of one or more physical resource blocks (PRBs). .

在多载波的场景下，每个CC对应一个独立的小区(cell)，配置了载波聚合的终端设备与1个主小区(primary cell，Pcell)和多个辅小区(secondary cell，Scell)相连。Pcell是初始接入的小区，Scell是接入后通过无线控制资源(radio resource control，RRC)配置的以提供更多的无线资源。若Scell不配置上行资源，那么当Scell发生链路失败时，通过Pcell的上行非竞争(contention free)的物理随机接入信道(physical random access channel，PRACH)资源恢复Scell。In a multi-carrier scenario, each CC corresponds to an independent cell (cell), and a terminal device configured with carrier aggregation is connected to a primary cell (Pcell) and multiple secondary cells (Scell). The Pcell is an initially accessed cell, and the Scell is configured through radio resource control (RRC) after access to provide more radio resources. If the Scell is not configured with uplink resources, then when the Scell fails in the link, the Scell is restored through the Pcell's uplink contention free physical random access channel (physical random access channel) resource.

若Scell的数目过多，则需要Pcell分配多个Scell的PRACH资源来恢复Scell的链路失败，资源开销较大。If the number of Scells is too large, the Pcell needs to allocate multiple Scell PRACH resources to recover the Scell's link failure, which results in a large resource overhead.

发明内容Summary of the invention

本申请提供一种通信失败恢复的方法和装置，以期避免网络设备过多的资源开销。The present application provides a method and a device for recovering from a communication failure, so as to avoid excessive resource overhead of a network device.

第一方面，提供了一种通信失败恢复的方法，该方法包括：该终端设备在第一上行资源上，向网络设备发送第一指示信息，该第一指示信息用于指示该第一下行资源上的通信失败，该第一上行资源为用于承载信道状态信息CSI的资源；其中，该第一上行资源属于第一小区，该第一下行资源属于第二小区，该第一小区和该第二小区为不同的小区或者相同的小区；或者，该第一下行资源关联的空间相关参数与该第一上行资源关联的空间相关参数不同。According to a first aspect, a method for recovering from a communication failure is provided. The method includes: on a first uplink resource, the terminal device sends first instruction information to a network device, where the first instruction information is used to indicate the first downlink The communication on the resource fails. The first uplink resource is a resource for carrying channel state information CSI. The first uplink resource belongs to the first cell, the first downlink resource belongs to the second cell, and the first cell and The second cell is a different cell or the same cell; or the spatial correlation parameter associated with the first downlink resource is different from the spatial correlation parameter associated with the first uplink resource.

在一些可能的实现方式中，下行资源的空间相关参数对应的是TCI或者QCL信息(其中包括一个或者多个参考信号)，上行资源的空间相关参数对应的是spatial relation信息(其中包括一个或者多个参考信号)。In some possible implementation manners, the spatial correlation parameters of downlink resources correspond to TCI or QCL information (including one or more reference signals), and the spatial correlation parameters of uplink resources correspond to spatial information (including one or more Reference signals).

在一些可能的实现方式中，该终端设备在第一上行资源上，向网络设备发送第一指示信息之前，该方法还包括：该终端设备确定在第一下行资源上通信失败。In some possible implementation manners, before the terminal device sends the first indication information to the network device on the first uplink resource, the method further includes: the terminal device determines that the communication on the first downlink resource fails.

在一些可能的实现方式中，该第一小区和该第二小区属于相同的小区组，或者，该第一小区和该第二小区属于不同的小区组。In some possible implementation manners, the first cell and the second cell belong to the same cell group, or the first cell and the second cell belong to different cell groups.

可选地，该CSI包括参考信号资源索引(如CRI)、秩指示(RI)、层指示(LI)、预编码指示(PMI)和信道质量指示(CQI)中的一种或者多种。Optionally, the CSI includes one or more of a reference signal resource index (such as CRI), a rank indication (RI), a layer indication (LI), a precoding indication (PMI), and a channel quality indication (CQI).

应理解，该第一指示信息可以为链路失败恢复请求(beam failure recovery request，BFRQ)信息，该BFRQ信息用于请求恢复该终端设备与另一网络设备之间的链路失败。It should be understood that the first indication information may be link failure recovery request (BFRQ) information, and the BFRQ information is used to request recovery of a link failure between the terminal device and another network device.

还应理解，正常情况下，终端设备在第一上行资源上，向网络设备发送该CSI，当该终端设备确定和该另一网络设备发生链路失败后，该终端设备优先在该第一上行资源上发送该BFRQ，可选地，该第一上行资源上还包括部分CSI信息。It should also be understood that, under normal circumstances, the terminal device sends the CSI to the network device on the first uplink resource. When the terminal device determines that a link failure occurs with the other network device, the terminal device preferentially sends the CSI on the first uplink resource. The BFRQ is sent on a resource, and optionally, the first uplink resource further includes part of CSI information.

在一些可能的实现方式中，该网络设备可以为该终端设备的主网络设备，该另一网络设备可以为该终端设备的多个辅网络设备中的一个。In some possible implementation manners, the network device may be a primary network device of the terminal device, and the other network device may be one of multiple secondary network devices of the terminal device.

在一些可能的实现方式中，该网络设备和该另一网络设备为相同的网络设备。In some possible implementation manners, the network device and the another network device are the same network device.

本申请实施例的通信失败恢复的方法，终端设备通过承载信道状态信息的资源发送用于指示通信失败的指示信息，有助于节省网络设备的资源开销。In the method for recovering from a communication failure in the embodiment of the present application, the terminal device sends instruction information used to indicate communication failure through a resource carrying channel state information, which helps to save the resource overhead of the network device.

结合第一方面，在第一方面的某些可能的实现方式中，该CSI包括信道质量指示CQI字域，该第一指示信息承载于该CQI字域的状态位中。With reference to the first aspect, in some possible implementation manners of the first aspect, the CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.

在一些可能的实现方式中，该第一指示信息承载于该CQI字域的最低状态位中。In some possible implementation manners, the first indication information is carried in a lowest status bit of the CQI word field.

结合第一方面，在第一方面的某些可能的实现方式中，该CQI字域包括宽带CQI字域，该第一指示信息承载于该宽带CQI字域的最低状态位中。With reference to the first aspect, in some possible implementation manners of the first aspect, the CQI word field includes a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.

在一些可能的实现方式中，当该宽带CQI字域为最低状态位(0000(二进制)或者0(十进制))时，表示该终端设备发送了该第一指示信息，或者，表示该第一上行资源上承载的内容包括了该第一指示信息。In some possible implementation manners, when the wideband CQI word field is the lowest status bit (0000 (binary) or 0 (decimal)), it means that the terminal device sends the first indication information, or it indicates that the first uplink The content carried on the resource includes the first indication information.

在一些可能的实现方式中，当该宽带CQI字域为非最低状态位(非二进制的0000(例如，二进制的0001-1111)或者非十进制的0)时，表示该终端设备没有发送该第一指示信息，或者，表示该第一上行资源上承载的是CSI。In some possible implementation manners, when the wideband CQI field is a non-least significant bit (non-binary 0000 (for example, 0001-1111 in binary) or non-decimal 0), it indicates that the terminal device does not send the first The indication information, or indicates that CSI is carried on the first uplink resource.

在一些可能的实现方式中，该第一指示信息承载于该CQI字域的特殊状态位中。In some possible implementation manners, the first indication information is carried in a special status bit of the CQI word field.

结合第一方面，在第一方面的某些可能的实现方式中，该CQI字域包括宽带CQI字域和子带CQI字域，该第一指示信息承载于该宽带CQI字域和该子带CQI字域结合的状态位中。With reference to the first aspect, in some possible implementation manners of the first aspect, the CQI word field includes a wideband CQI word field and a subband CQI word field, and the first indication information is carried in the wideband CQI word field and the subband CQI Field combined status bit.

在一些可能的实现方式中，该子带CQI为子带差分CQI，该子带差分CQI用于上报每个子带的相对带宽CQI的差分值。In some possible implementation manners, the subband CQI is a subband differential CQI, and the subband differential CQI is used to report a differential value of a relative bandwidth CQI of each subband.

在一些可能的实现方式中，当该宽带CQI字域和该子带CQI字域结合的状态位为十进制的0或者负数时，表示该终端设备发送了该第一指示信息，或者，表示该第一上行资源上承载的内容包括了该第一指示信息。In some possible implementation manners, when the status bit combined by the wideband CQI word field and the subband CQI word field is a decimal 0 or a negative number, it indicates that the terminal device sends the first indication information, or that the first The content carried on an uplink resource includes the first indication information.

在一些可能的实现方式中，该宽带CQI字域的状态位为最低状态位(0000(二进制) 或者0(十进制))，该子带CQI字域的状态位为较低状态位。In some possible implementation manners, the status bit of the wideband CQI word field is the lowest status bit (0000 (binary) or 0 (decimal)), and the status bit of the subband CQI word field is the lower status bit.

具体地，该子带CQI字域的较低状态位为00(二进制)或者0(十进制)，或者，该子带CQI字域的较低状态位为01(二进制)或者1(十进制)，或者，该子带CQI字域的较低状态位为10(二进制)或者2(十进制)。Specifically, the lower status bit of the subband CQI field is 00 (binary) or 0 (decimal), or the lower status bit of the subband CQI field is 01 (binary) or 1 (decimal), or The lower status bit of the subband CQI field is 10 (binary) or 2 (decimal).

在一些可能的实现方式中，该宽带CQI字域的状态位为次低状态位，该子带差分CQI字域的状态位为较低状态位。In some possible implementation manners, the status bit of the wideband CQI word field is the next lowest status bit, and the status bit of the subband differential CQI word field is the lower status bit.

具体地，该宽带CQI字域的状态位为次低状态位为0001(二进制)或者1(十进制)，该子带CQI字域的较低状态位为01(二进制)或者1(十进制)，或者，该子带CQI字域的较低状态位为10(二进制)或者2(十进制)。Specifically, the status bit of the wideband CQI word field is the next lowest status bit is 0001 (binary) or 1 (decimal), and the lower status bit of the subband CQI word field is 01 (binary) or 1 (decimal), or The lower status bit of the subband CQI field is 10 (binary) or 2 (decimal).

本申请实施例的通信失败恢复的方法，终端设备通过复用或者打孔用于传输信道状态信息中的信道状态质量字域的状态位发送第一指示信息，有助于节省网络设备的资源开销。In the method for recovering from a communication failure in the embodiment of the present application, the terminal device sends the first indication information through multiplexing or puncturing the status bits of the channel status quality field in the channel status information, which helps to save the network device's resource overhead. .

结合第一方面，在第一方面的某些可能的实现方式中，该第一指示信息承载于该CSI的填充比特中。With reference to the first aspect, in some possible implementation manners of the first aspect, the first indication information is carried in a padding bit of the CSI.

在一些可能的实现方式中，该填充比特全为1，表示该终端设备发送了该第一指示信息或者表示该第一上行资源上承载的内容包括了该第一指示信息；该填充比特全为0，表示该终端设备没有发送该第一指示信息或者表示该第一上行资源上承载的是CSI。In some possible implementation manners, the padding bits are all 1, indicating that the terminal device sent the first indication information or that the content carried on the first uplink resource includes the first indication information; the padding bits are all 0, indicating that the terminal device did not send the first indication information or that the first uplink resource carried CSI.

在一些可能的实现方式中，该填充比特全为0，表示该终端设备发送了该第一指示信息或者表示该第一上行资源上承载的内容包括了该第一指示信息；该填充比特全为1，表示该终端设备没有发送该第一指示信息或者表示该第一上行资源上承载的是CSI。In some possible implementation manners, the padding bits are all 0, indicating that the terminal device sent the first indication information or that the content carried on the first uplink resource includes the first indication information; the padding bits are all 1, indicating that the terminal device did not send the first indication information or that the first uplink resource carried CSI.

本申请实施例的通信失败恢复的方法，终端设备通过复用用于传输信道状态信息中的填充比特发送第一指示信息，有助于节省网络设备的资源开销。In the method for recovering from a communication failure in the embodiment of the present application, the terminal device sends the first indication information by multiplexing padding bits used to transmit channel state information, which helps to save network device resource overhead.

结合第一方面，在第一方面的某些可能的实现方式中，该第一指示信息承载于该CSI的非零宽带幅度系数字域中。With reference to the first aspect, in some possible implementation manners of the first aspect, the first indication information is carried in a non-zero wideband amplitude system in the CSI digital domain.

在一些可能的实现方式中，当该非零宽带幅度系数字域为最低状态位(00(二进制))时，表示该终端设备发送了该第一指示信息，或者，表示该第一上行资源上承载的内容包括了该第一指示信息；当该非零宽带幅度系数字域为非最低状态位(01-11(二进制))时，表示该终端设备没有发送该第一指示信息，或者，表示该第一上行资源上承载的是CSI信息。In some possible implementation manners, when the non-zero wideband amplitude is in the lowest state bit (00 (binary)) in the digital domain, it indicates that the terminal device sent the first indication information, or that the first uplink resource is The content carried includes the first indication information; when the non-zero wideband amplitude is in the non-least significant state bit (01-11 (binary)), it means that the terminal device has not sent the first indication information, or, CSI information is carried on the first uplink resource.

在一些可能的实现方式中，当该非零宽带幅度系数字域为最高状态位(11(二进制))时，表示该终端设备发送了该第一指示信息，或者，表示该第一上行资源上承载的内容包括了该第一指示信息；当该非零宽带幅度系数字域为非最高状态位(00-10(二进制))时，表示该终端设备没有发送该第一指示信息，或者，表示该第一上行资源上承载的是CSI信息。In some possible implementation manners, when the non-zero wideband amplitude is in the highest status bit (11 (binary)) in the digital domain, it indicates that the terminal device sent the first indication information, or that the first uplink resource is transmitted on the first uplink resource. The content carried includes the first indication information; when the non-zero wideband amplitude is in the non-most significant bit (00-10 (binary)) of the digital domain, it means that the terminal equipment has not sent the first indication information, or, CSI information is carried on the first uplink resource.

本申请实施例的通信失败恢复的方法，终端设备通过复用或者打孔用于传输信道状态信息中的非零宽带幅度系数字域发送第一指示信息，有助于节省网络设备的资源开销。In the method for recovering from a communication failure in the embodiment of the present application, the terminal device sends the first indication information through multiplexing or puncturing a non-zero wideband digital domain used to transmit channel state information, which helps to save network device resource overhead.

结合第一方面，在第一方面的某些可能的实现方式中，该方法还包括：该终端设备在该第一上行资源上，向该网络设备发送第二指示信息，该第二指示信息包括该第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。With reference to the first aspect, in some possible implementation manners of the first aspect, the method further includes: on the first uplink resource, the terminal device sends second instruction information to the network device, where the second instruction information includes One or more of identification information of the second cell, information of a first reference signal with channel quality greater than or equal to a first preset threshold, or information of a second reference signal with channel quality less than or equal to a second preset threshold .

在一些可能的实现方式中，该第一参考信号为在下行链路(该终端设备和网络设备之间的链路)上新识别的参考信号，该第一参考信号的信息包括该第一参考信号的资源索引和/或该第一参考信号的质量信息。在一些可能的实现方式中，该第二参考信号为在下行链路(该终端设备和网络设备之间的链路)失败的参考信号，该第二参考信号的信息包括该第二参考信号的资源索引和/或该第二参考信号的质量信息。In some possible implementation manners, the first reference signal is a newly identified reference signal on a downlink (a link between the terminal device and a network device), and information of the first reference signal includes the first reference signal. A resource index of the signal and / or quality information of the first reference signal. In some possible implementation manners, the second reference signal is a reference signal that fails on a downlink (the link between the terminal device and the network device), and the information of the second reference signal includes the second reference signal. A resource index and / or quality information of the second reference signal.

具体地，该下行链路为该终端设备和该网络设备在该第二小区的链路；或者，该下行链路为该终端设备和另一网络设备在该第二小区的链路。Specifically, the downlink is a link between the terminal device and the network device in the second cell; or the downlink is a link between the terminal device and another network device in the second cell.

应理解，本申请中，该下行链路还可以理解为是终端设备和该网络设备(或者，另一网络设备)之间的链路，该第一参考信号或该第二参考信号是该第二小区的参考信号。It should be understood that, in this application, the downlink may also be understood as a link between a terminal device and the network device (or another network device), and the first reference signal or the second reference signal is the first Reference signal of the second cell.

在一些可能的实现方式中，该第二指示信息承载于该CSI的最低优先级内容对应的字域中。In some possible implementation manners, the second indication information is carried in a field corresponding to the lowest priority content of the CSI.

在一些可能的实现方式中，该最低优先级内容为该终端设备上报该CSI的比特数超过最大资源分配时丢弃优先级最高或者传输优先级最低的内容。In some possible implementation manners, the lowest priority content is the content with the highest priority or the lowest transmission priority when the number of bits reported by the terminal device for the CSI exceeds the maximum resource allocation.

在一些可能的实现方式中，该最低优先级的内容为CSI反馈的part 2，或者，该最低优先级的内容为CSI反馈的最后一个子带的内容或最后一个子带的part 2。In some possible implementation manners, the content of the lowest priority is part 2 of the CSI feedback, or the content of the lowest priority is content of the last subband or part 2 of the last subband of the CSI feedback.

在一些可能的实现方式中，该CSI的最低优先级内容为part 2的内容或者最后一个子带的part 2的内容。In some possible implementation manners, the lowest priority content of the CSI is the content of part 2 or the content of part 2 of the last subband.

在一些可能的实现方式中，该方法该包括：该终端设备根据预定义规则，将CSI中的多个优先级内容对应的字域进行排序，确定第一优先级内容对应的字域；该终端设备将该第二指示信息承载于该第一优先级内容对应的字域中。In some possible implementation manners, the method should include: the terminal device sorts word fields corresponding to multiple priority contents in the CSI according to a predefined rule, and determines a word field corresponding to the first priority content; the terminal The device carries the second indication information in a field corresponding to the first priority content.

在一些可能的实现方式中，该方法该包括：该终端设备根据预定义规则，从该CSI中的第一优先级内容对应的字域和第二优先级内容对应的字域中，确定该第一优先级内容对应的字域；该终端设备将该第二指示信息承载于该第一优先级内容对应的字域中。In some possible implementation manners, the method should include: determining, by the terminal device, the word domain corresponding to the first priority content and the word domain corresponding to the second priority content in the CSI according to a predefined rule. A word field corresponding to a priority content; the terminal device carrying the second indication information in a word field corresponding to the first priority content.

在一些可能的实现方式中，该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的至少部分承载于该第一指示信息。In some possible implementation manners, at least part of the identification information of the second cell, the information of the first reference signal, and the information of the second reference signal is carried in the first indication information.

在一些可能的实现方式中，该第二小区包括一个或者多个小区。In some possible implementation manners, the second cell includes one or more cells.

应理解，该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的至少部分承载于该第一指示信息还可以理解为该终端设备可以将该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的至少部分和该第一指示信息同时发送给该网络设备。It should be understood that at least part of the identification information of the second cell, the information of the first reference signal, and the information of the second reference signal is carried in the first indication information, and it can also be understood that the terminal device can identify the second cell. At least part of the information, the information of the first reference signal, and the information of the second reference signal and the first indication information are simultaneously sent to the network device.

在一些可能的实现方式中，该第二指示信息和该第一指示信息承载于该CSI的不同状态位中。In some possible implementation manners, the second indication information and the first indication information are carried in different status bits of the CSI.

应理解，该终端设备也可以将该第一指示信息和该第二指示信息不同时发送给该网络设备。It should be understood that the terminal device may also send the first instruction information and the second instruction information to the network device at the same time.

结合第一方面，在第一方面的某些可能的实现方式中，该第一下行资源为物理下行控制信道PDCCH资源。With reference to the first aspect, in some possible implementation manners of the first aspect, the first downlink resource is a physical downlink control channel (PDCCH) resource.

结合第一方面，在第一方面的某些可能的实现方式中，该第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。With reference to the first aspect, in some possible implementation manners of the first aspect, the first uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.

第二方面，提供了一种通信失败恢复的方法，该方法包括：网络设备在第一上行资源上，接收终端设备发送的第一指示信息，该第一指示信息用于指示第一下行资源上的通信失败，该第一上行资源为用于承载信道状态信息CSI的资源；其中，该第一上行资源属于第一小区，该第一下行资源属于第二小区，该第一小区和该第二小区为不同的小区或者相同的小区；或者，该第一下行资源关联的空间相关参数与该第一上行资源关联的空间相关参数不同。In a second aspect, a method for recovering communication failure is provided. The method includes: on a first uplink resource, a network device receives first indication information sent by a terminal device, where the first indication information is used to indicate a first downlink resource. Communication fails, the first uplink resource is a resource for carrying channel state information CSI; wherein the first uplink resource belongs to the first cell, the first downlink resource belongs to the second cell, the first cell and the The second cell is a different cell or the same cell; or the spatial correlation parameter associated with the first downlink resource is different from the spatial correlation parameter associated with the first uplink resource.

结合第二方面，在第二方面的某些可能的实现方式中，该第一指示信息承载于该CSI的填充比特中；或者，该第一指示信息承载于该CSI的非零宽带幅度系数字域中；或者，该CSI包括信道质量指示CQI字域，该第一指示信息承载于该CQI字域的状态位中。With reference to the second aspect, in some possible implementation manners of the second aspect, the first indication information is carried in a padding bit of the CSI; or the first indication information is carried in a non-zero wideband magnitude of the CSI. Field; or, the CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.

结合第二方面，在第二方面的某些可能的实现方式中，该方法还包括：该网络设备在该第一上行资源上，接收该终端设备发送的第二指示信息，该第二指示信息包括该第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的资源信息、或者信道质量小于或者等于第二预设门限的第二参考信号的资源信息中的一种或者多种。With reference to the second aspect, in some possible implementation manners of the second aspect, the method further includes: on the first uplink resource, the network device receives second instruction information sent by the terminal device, and the second instruction information One of identification information of the second cell, resource information of a first reference signal with channel quality greater than or equal to a first preset threshold, or resource information of a second reference signal with channel quality less than or equal to a second preset threshold Or more.

结合第二方面，在第二方面的某些可能的实现方式中，该第二指示信息承载于该CSI的最低优先级内容对应的字域中。With reference to the second aspect, in some possible implementation manners of the second aspect, the second indication information is carried in a field corresponding to the lowest priority content of the CSI.

结合第二方面，在第二方面的某些可能的实现方式中，该CQI字域包括宽带CQI字域，该第一指示信息承载于该宽带CQI字域的最低状态位中。With reference to the second aspect, in some possible implementation manners of the second aspect, the CQI word field includes a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.

结合第二方面，在第二方面的某些可能的实现方式中，该CQI字域包括宽带CQI字域和子带CQI字域，该第一指示信息承载于该宽带CQI字域和该子带CQI字域结合的状态位中。With reference to the second aspect, in some possible implementation manners of the second aspect, the CQI word domain includes a wideband CQI word domain and a subband CQI word domain, and the first indication information is carried in the wideband CQI word domain and the subband CQI Field combined status bit.

结合第二方面，在第二方面的某些可能的实现方式中，该第一下行资源为物理下行控制信道PDCCH资源。With reference to the second aspect, in some possible implementation manners of the second aspect, the first downlink resource is a physical downlink control channel (PDCCH) resource.

结合第二方面，在第二方面的某些可能的实现方式中，该第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。With reference to the second aspect, in some possible implementation manners of the second aspect, the first uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.

第三方面，提供了一种通信失败恢复的方法，该方法包括：终端设备在第二上行资源上，向网络设备发送第一指示信息，该第一指示信息用于指示该终端设备在第一下行资源上的通信失败；该终端设备在发送该第一指示信息后的第n个时间单元，和/或，第m个用于发送下行控制信道的时频资源开始的时间窗内，检测通信失败响应信息，该通信失败响应信息为承载在第二下行资源上的对该第一下行资源上的通信失败的响应；其中，n为大于或者等于0的整数，m为大于或者等于0的整数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同。According to a third aspect, a method for recovering from communication failure is provided. The method includes: on a second uplink resource, the terminal device sends first instruction information to a network device, where the first instruction information is used to indicate that the terminal device is in the first The communication on the downlink resource fails; the terminal device detects in the nth time unit after sending the first indication information, and / or, the mth time window of the time-frequency resource used to send the downlink control channel, Communication failure response information, the communication failure response information is a response carried on the second downlink resource to the communication failure on the first downlink resource; where n is an integer greater than or equal to 0, and m is greater than or equal to 0 The second uplink resource belongs to the third cell, the second downlink resource belongs to the fourth cell, and the third cell and the fourth cell are different cells or the same cell; or The spatial correlation parameters associated with the two uplink resources are different from the spatial correlation parameters associated with the second downlink resource.

在一些可能的实现方式中，该时频资源位置可以为该第四小区的用于发送下行控制信道的时频资源位置。In some possible implementation manners, the time-frequency resource location may be a time-frequency resource location of the fourth cell for sending a downlink control channel.

应理解，该第一指示信息还可以为链路失败恢复请求(beam failure recovery request，BFRQ)信息，该BFRQ信息用于请求恢复该终端设备与网络设备之间的链路失败。It should be understood that the first indication information may also be link failure recovery request (BFRQ) information, and the BFRQ information is used to request recovery of a link failure between the terminal device and the network device.

具体地，该BFRQ信息用于恢复该终端设备和该网络设备之间在该第四小区的链路，或者，该BFRQ信息用于恢复该终端设备和另一网络设备在该第四小区的链路。Specifically, the BFRQ information is used to restore a link between the terminal device and the network device in the fourth cell, or the BFRQ information is used to restore a link between the terminal device and another network device in the fourth cell road.

还应理解，该通信失败响应信息可以为链路失败恢复响应(beam failure recovery response，BFRR)信息，该BFRR信息为网络设备发送的对该BFRQ信息的响应。It should also be understood that the communication failure response information may be link failure recovery response (BFRR) information, and the BFRR information is a response to the BFRQ information sent by the network device.

具体地，该BFRR信息为该网络设备在该第四小区的资源上发送的对该BFRQ信息的响应，或者，该BFRR信息为另一网络设备在该第四小区的资源上发送的对该BFRQ信息的响应。Specifically, the BFRR information is a response to the BFRQ information sent by the network device on the resources of the fourth cell, or the BFRR information is the BFRQ sent by another network device on the resources of the fourth cell. Information response.

在一些可能的实现方式中，该第一下行资源和该第二下行资源属于相同的小区。In some possible implementation manners, the first downlink resource and the second downlink resource belong to the same cell.

在一些可能的实现方式中，该第三小区和该第四小区属于相同的小区组，或者，该第三小区和该第四小区属于不同的小区组。In some possible implementation manners, the third cell and the fourth cell belong to the same cell group, or the third cell and the fourth cell belong to different cell groups.

在一些可能的实现方式中，该第一下行资源为物理下行控制信道PDCCH资源。In some possible implementation manners, the first downlink resource is a physical downlink control channel (PDCCH) resource.

在一些可能的实现方式中，该第二下行资源为物理下行控制信道PDCCH资源。In some possible implementation manners, the second downlink resource is a physical downlink control channel (PDCCH) resource.

在一些可能的实现方式中，该第二上行资源为物理随机接入信道PRACH资源。In some possible implementation manners, the second uplink resource is a physical random access channel PRACH resource.

在一些可能的实现方式中，该第二上行资源为该网络设备和该终端设备之间用于传输信道状态信息CSI的资源。In some possible implementation manners, the second uplink resource is a resource for transmitting channel state information CSI between the network device and the terminal device.

在一些可能的实现方式中，该第二上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。In some possible implementation manners, the second uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.

应理解，该第一指示信息可以复用或者打孔CSI的某些状态位中，具体的复用或打孔方式可以参考上述第一方面的某些实现方式。It should be understood that the first indication information may be multiplexed or punctured in certain status bits of the CSI. For specific multiplexing or puncturing manners, reference may be made to some implementation manners of the first aspect above.

本申请实施例的通信失败恢复的方法，通过网络设备向终端设备指示接收通信失败响应信息，有助于确保终端设备检测到该通信失败响应信息。The method for recovering communication failure in the embodiment of the present application instructs the terminal device to receive the communication failure response information through the network device, which helps to ensure that the terminal device detects the communication failure response information.

结合第三方面，在第三方面的某些可能的实现方式中，该方法还包括：该终端设备根据该第三小区和/或该第四小区的***参数，确定该n或者该m。With reference to the third aspect, in some possible implementation manners of the third aspect, the method further includes: the terminal device determining the n or the m according to system parameters of the third cell and / or the fourth cell.

在一些可能的实现方式中，该***参数(numerologies)包括子载波间隔(subcarrier spacing，SCS)和/或循环前缀(cyclic prefix，CP)。In some possible implementations, the system parameters (numerologies) include subcarrier spacing (SCS) and / or cyclic prefix (CP).

在一些可能的实现方式中，所述终端设备根据所述第三小区和/或所述第四小区的***参数确定所述n或所述m，包括：In some possible implementation manners, the terminal device determining the n or the m according to a system parameter of the third cell and / or the fourth cell includes:

所述终端设备根据所述第三小区的上行载波的***参数和/或所述第四小区的下行载波的***参数确定所述n或所述m；或者或者包括：所述终端设备根据所述第三小区的上行载波的***参数和/或所述第三小区的下行载波的***参数和/或所述第四小区的上行载波的***参数和/或所述第四小区的下行载波的***参数确定所述n或所述m。Determining, by the terminal device, n or m according to a system parameter of an uplink carrier of the third cell and / or a system parameter of a downlink carrier of the fourth cell; or or including: the terminal device according to the A system parameter of an uplink carrier of a third cell and / or a system parameter of a downlink carrier of the third cell and / or a system parameter of an uplink carrier of the fourth cell and / or a system of a downlink carrier of the fourth cell The parameters determine the n or the m.

或者包括：所述终端设备根据所述第二上行资源的***参数和/或所述第二下行资源的***参数确定。Or it includes: determining, by the terminal device, according to a system parameter of the second uplink resource and / or a system parameter of the second downlink resource.

可选的，上述实现方式中，***参数可替换为子载波间隔。Optionally, in the foregoing implementation manner, the system parameter may be replaced with a subcarrier interval.

在一些可能的实现方式中：所述终端设备根据所述第三小区的上行载波的***参数和所述第四小区的下行载波的***参数确定所述n或所述m，包括In some possible implementation manners, the terminal device determines the n or the m according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell, including:

所述终端设备根据所述第三小区的上行载波的***参数与所述第四小区的下行载波的***参数的最小值确定所述n或所述m；或者Determining, by the terminal device, n or m according to a minimum value of a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述终端设备根据所述第三小区的上行载波的***参数与所述第四小区的下行载波的***参数的最大值确定所述n或所述m；或者Determining, by the terminal device, n or m according to a maximum value of a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述终端设备根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最小值确定所述n或所述m；或者Determining, by the terminal device, n or m according to a minimum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell; or

所述终端设备根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最大值确定所述n或所述m。The terminal device determines the n or the m according to a maximum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell.

在一些可能的实现方式中：所述终端设备根据所述第三小区的上行载波的***参数和/或所述第三小区的下行载波的***参数和/或所述第四小区的上行载波的***参数和/或所述第四小区的下行载波的***参数确定所述n或所述m，包括：In some possible implementation manners, the terminal device is configured according to a system parameter of an uplink carrier of the third cell and / or a system parameter of a downlink carrier of the third cell and / or an uplink carrier of the fourth cell. The system parameter and / or the system parameter of the downlink carrier of the fourth cell to determine the n or the m includes:

所述终端设备根据所述第三小区的上行载波的***参数和/或所述第三小区的下行载波的***参数和/或所述第四小区的上行载波的***参数和/或所述第四小区的下行载波的***参数的最小值确定所述n或所述m；或者The terminal device according to a system parameter of an uplink carrier of the third cell and / or a system parameter of a downlink carrier of the third cell and / or a system parameter of an uplink carrier of the fourth cell and / or the first The minimum value of the system parameter of the downlink carrier of the four cells determines the n or the m; or

所述终端设备根据所述第三小区的上行载波的***参数和/或所述第三小区的下行载波的***参数和/或所述第四小区的上行载波的***参数和/或所述第四小区的下行载波的***参数的最大值确定所述n或所述m；或者The terminal device according to a system parameter of an uplink carrier of the third cell and / or a system parameter of a downlink carrier of the third cell and / or a system parameter of an uplink carrier of the fourth cell and / or the first The maximum value of the system parameter of the downlink carrier of the four cells determines the n or the m; or

所述终端设备根据所述第三小区的上行载波的子载波间隔和/或所述第三小区的下行载波的子载波间隔和/或所述第四小区的上行载波的子载波间隔和/或所述第四小区的下行载波的子载波间隔的最小值确定所述n或所述m；或者The terminal device according to the subcarrier interval of the uplink carrier of the third cell and / or the subcarrier interval of the downlink carrier of the third cell and / or the subcarrier interval of the uplink carrier of the fourth cell and / or The minimum value of the subcarrier interval of the downlink carrier of the fourth cell determines the n or the m; or

所述终端设备根据所述第三小区的上行载波的子载波间隔和/或所述第三小区的下行载波的子载波间隔和/或所述第四小区的上行载波的子载波间隔和/或所述第四小区的下行载波的子载波间隔的最大值确定所述n或所述m。The terminal device according to the subcarrier interval of the uplink carrier of the third cell and / or the subcarrier interval of the downlink carrier of the third cell and / or the subcarrier interval of the uplink carrier of the fourth cell and / or A maximum value of a subcarrier interval of a downlink carrier of the fourth cell determines the n or the m.

在一些可能的实现方式中：所述终端设备根据所述第二上行资源的***参数和所述第二下行资源的***参数确定包括：In some possible implementation manners, the determining by the terminal device according to the system parameter of the second uplink resource and the system parameter of the second downlink resource includes:

所述终端设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值确定所述n或所述m；或者Determining, by the terminal device, the n or the m according to the minimum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; or

所述终端设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值确定所述n或所述m。The terminal device determines the n or the m according to a maximum value of a subcarrier interval of the second uplink resource and a maximum value of the subcarrier interval of the second downlink resource.

应理解，在本申请实施例中，所述***参数包括子载波间隔可以替换为：***参数指示子载波间隔。It should be understood that, in the embodiment of the present application, the system parameter including the subcarrier interval may be replaced by: the system parameter indicates the subcarrier interval.

在一些可能的实现方式中，该终端设备根据该第三小区和/或第四小区的***参数，和/或该终端设备的能力，确定该n或者该m。In some possible implementation manners, the terminal device determines the n or the m according to the system parameters of the third cell and / or the fourth cell and / or the capabilities of the terminal device.

在一些可能的实现方式中，该终端设备根据该第三小区和/或该第四小区的子载波间隔，确定该n或者该m。In some possible implementation manners, the terminal device determines the n or the m according to a subcarrier interval of the third cell and / or the fourth cell.

在一些可能的是实现方式中，该n(或者，该m)与该第三小区和/或第四小区的子载波间隔成正比。In some possible implementations, the n (or the m) is directly proportional to the subcarrier spacing of the third cell and / or the fourth cell.

在一些可能的实现方式中，该终端设备根据该第三小区的子载波间隔，确定该n或者该m。In some possible implementation manners, the terminal device determines the n or the m according to a subcarrier interval of the third cell.

在一些可能的实现方式中，该终端设备根据该第四小区的子载波间隔，确定该n或者该m。In some possible implementation manners, the terminal device determines the n or the m according to the subcarrier interval of the fourth cell.

在一些可能的实现方式中，该终端设备根据该第三小区和该第四小区的子载波间隔，确定该n或者该m。In some possible implementation manners, the terminal device determines the n or the m according to a subcarrier interval between the third cell and the fourth cell.

在一些可能的实现方式中，该第三小区的下行载波的子载波间隔为X，该第四小区的下行载波的子载波间隔为Y，在该第三小区上对该第三小区的通信失败恢复时，该终端设备在发送通信失败恢复请求信息的W个时间单元后在该第三小区上检测通信失败响应信息，那么在通过该第三小区发送该第四小区的通信失败恢复请求信息时，在第四小区上检测该通信失败响应信息的起始时刻由该X，Y和W确定。In some possible implementation manners, the subcarrier interval of the downlink carrier of the third cell is X, the subcarrier interval of the downlink carrier of the fourth cell is Y, and communication with the third cell fails on the third cell When recovering, the terminal device detects the communication failure response information on the third cell after sending W time units of the communication failure recovery request information, then when sending the communication failure recovery request information of the fourth cell through the third cell The start time of detecting the communication failure response information on the fourth cell is determined by the X, Y, and W.

在一些可能的实现方式中，n＝(Y*W)/X，或者，n为大于(Y*W)/X的正整数。In some possible implementation manners, n = (Y * W) / X, or n is a positive integer greater than (Y * W) / X.

结合第三方面，在第三方面的某些可能的实现方式中，该方法还包括：With reference to the third aspect, in some possible implementation manners of the third aspect, the method further includes:

该终端设备接收第三指示信息；The terminal device receives the third instruction information;

该终端设备根据该第三指示信息，确定该n或者该m。The terminal device determines the n or the m according to the third instruction information.

在一些可能的实现方式中，该第三指示信息承载在第三下行资源上，该第三下行资源为物理下行控制信道PDCCH资源或者物理下行共享信道PDSCH资源。In some possible implementation manners, the third indication information is carried on a third downlink resource, and the third downlink resource is a physical downlink control channel PDCCH resource or a physical downlink shared channel PDSCH resource.

在一些可能的实现方式中，该终端设备在第一时频资源上接收该网络设备发送的第三指示信息。In some possible implementation manners, the terminal device receives the third indication information sent by the network device on the first time-frequency resource.

在一些可能的实现方式中，该第一时频资源由控制资源集合和/或搜索空间集合确定。In some possible implementation manners, the first time-frequency resource is determined by a control resource set and / or a search space set.

结合第三方面，在第三方面的某些可能的实现方式中，该第三指示信息包括用于指示接收该通信失败响应信息的起始时刻的信息、该第四小区的标识信息、用于接收该通信失败响应信息的控制资源集合的标识信息或者用于接收该通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。With reference to the third aspect, in some possible implementation manners of the third aspect, the third indication information includes information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, and One or more of identification information of a control resource set receiving the communication failure response information or identification information of a search space set for receiving the communication failure response information.

在一些可能的实现方式中，若该第三小区所在的网络设备为该网络设备，该第四小区所在的网络设备为另一网络设备，该终端设备接收该通信失败响应信息的起始时刻由该网络设备根据该第一网络设备和该另一网络设备之间的时延确定。In some possible implementation manners, if the network device in which the third cell is located is the network device and the network device in which the fourth cell is located is another network device, the start time of the terminal device receiving the communication failure response information is The network device is determined according to a delay between the first network device and the other network device.

在一些可能的实现方式中，若该第三小区和该第四小区所在的网络设备均为该网络设备，则该终端设备接收该通信失败响应信息的起始时刻由该网络设备的内部时延确定。In some possible implementation manners, if the network devices where the third cell and the fourth cell are located are both the network device, the start time of the terminal device receiving the communication failure response information is the internal delay of the network device determine.

在一些可能的实现方式中，该终端设备接收该第四小区上的该通信失败响应信息。In some possible implementation manners, the terminal device receives the communication failure response information on the fourth cell.

在一些可能的实现方式中，该终端设备在第二时频资源上接收该通信失败响应信息。In some possible implementation manners, the terminal device receives the communication failure response information on the second time-frequency resource.

在一些可能的实现方式中，该第二时频资源由控制资源集合和/或搜索空间集合确定。In some possible implementation manners, the second time-frequency resource is determined by a control resource set and / or a search space set.

本申请实施例的通信失败恢复的方法，通过网络设备向终端设备发送接收通信失败响应信息的起始时刻的信息，有助于终端设备确保终端设备检测到该通信失败响应信息。The method for recovering communication failure in the embodiment of the present application sends information about the start time of receiving the communication failure response information to the terminal device through the network device, which helps the terminal device ensure that the terminal device detects the communication failure response information.

结合第三方面，在第三方面的某些可能的实现方式中，该第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。With reference to the third aspect, in some possible implementation manners of the third aspect, the third indication information is carried in one of downlink control information DCI, media access control layer control element MAC CE, or radio resource control RRC signaling Or more.

在一些可能的实现方式中，该网络设备在专用于发送通信失败响应信息的控制资源集合和/或专用于发送通信失败响应信息的搜索空间集合上向该终端设备发送该DCI；或者该网络设备在专用于发送通信失败响应信息的控制资源集合和/或专用于发送通信失败响应信息的搜索空间集合上承载的PDCCH所调度的PDSCH资源上发送MAC CE、RRC。可选地，该控制资源集合和/或搜索空间集合和/或PDSCH是为网络设备配置的第四小区的资源。In some possible implementation manners, the network device sends the DCI to the terminal device on a control resource set dedicated to sending communication failure response information and / or a search space set dedicated to sending communication failure response information; or the network device Sending MAC CE, RRC on a control resource set dedicated to sending communication failure response information and / or a PDSCH resource scheduled on a PDCCH carried on a search space set dedicated to sending communication failure response information. Optionally, the control resource set and / or search space set and / or PDSCH are resources of a fourth cell configured for a network device.

结合第三方面，在第三方面的某些可能的实现方式中，该第三指示信息承载于DCI中，该DCI为专用于指示该终端设备接收该通信失败响应信息的信令。With reference to the third aspect, in some possible implementation manners of the third aspect, the third indication information is carried in a DCI, and the DCI is dedicated to instruct the terminal device to receive the communication failure response information.

在一些可能的实现方式中，该DCI为只包括用于指示该终端设备接收该通信失败响应信息的信令。In some possible implementation manners, the DCI includes only signaling for instructing the terminal device to receive the communication failure response information.

结合第三方面，在第三方面的某些可能的实现方式中，该第三指示信息承载于DCI的字段中，该DCI用于上行数据或者下行数据的传输。With reference to the third aspect, in some possible implementation manners of the third aspect, the third indication information is carried in a DCI field, and the DCI is used for transmission of uplink data or downlink data.

在一些可能的实现方式中，该DCI的格式为NR中的DCI格式。In some possible implementation manners, the format of the DCI is the DCI format in the NR.

结合第三方面，在第三方面的某些可能的实现方式中，该字段承载于该DCI中的时频资源指示字域中。With reference to the third aspect, in some possible implementation manners of the third aspect, this field is carried in a time-frequency resource indicator field in the DCI.

在一些可能的实现方式中，该时域资源指示和/或频域资源指示字域全为0时指示该终端设备接收该通信失败响应信息。In some possible implementation manners, when the time domain resource indicator and / or the frequency domain resource indicator word field are all 0, the terminal device is instructed to receive the communication failure response information.

第四方面，提供了一种通信失败的方法，该方法包括：网络设备在第二上行资源上，接收终端设备发送的第一指示信息，该第一指示信息用于指示该终端设备在第一下行资源上的通信失败；该网络设备在接收到该第一指示信息后的第x个时间单元，和/或，第y个用于发送下行控制信道的时频资源开始的时间窗内，向该终端设备发送通信失败响应信息，该通信失败响应信息为承载在第二下行资源上的对该第一下行资源上的通信失败的响应；其中，x为大于或者等于0的整数，y为大于或者等于0的整数，该第二上行资源属于第三小区，该第二下行资源属于第四小区，该第三小区和该第四小区为不同的小区；或者，该第二上行资源关联的空间相关参数与该第二下行资源关联的空间相关参数不同。According to a fourth aspect, a communication failure method is provided. The method includes: on a second uplink resource, the network device receives first instruction information sent by the terminal device, where the first instruction information is used to indicate that the terminal device is in the first Communication on the downlink resource fails; the network device is within the x-th time unit after receiving the first indication information, and / or, the y-th time window of the time-frequency resource used to send the downlink control channel, Sending communication failure response information to the terminal device, where the communication failure response information is a response to the communication failure on the first downlink resource carried on the second downlink resource; where x is an integer greater than or equal to 0, and y Is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third cell and the fourth cell are different cells; or the second uplink resource is associated The spatially related parameters are different from the spatially related parameters associated with the second downlink resource.

应理解，该通信失败响应信息还可以理解为承载在该第三下行资源上的对该第一指示信息的响应。It should be understood that the communication failure response information may also be understood as a response to the first indication information carried on the third downlink resource.

在一些可能的实现方式中，该方法还包括：该网络设备发送第一参考信号的信息，该第一参考信号为信道质量大于或者等于第一预设门限的参考信号。In some possible implementation manners, the method further includes: the network device sends information of a first reference signal, where the first reference signal is a reference signal with a channel quality greater than or equal to a first preset threshold.

在一些可能的实现方式中，该第三小区所在的网络设备为该网络设备，该第四小区所在的网络设备为另一网络设备，该方法还包括：该网络设备向该另一网络设备发送该第一参考信号的信息。In some possible implementation manners, the network device where the third cell is located is the network device, and the network device where the fourth cell is located is another network device. The method further includes: the network device sends the network device to the other network device. Information of the first reference signal.

结合第四方面，在第四方面的某些可能的实现方式中，该方法还包括：该网络设备根据该第三小区和/或该第四小区的***参数，确定该x或者该y。With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the method further includes: the network device determines the x or the y according to a system parameter of the third cell and / or the fourth cell.

在一些可能的实现方式中，所述***参数包括子载波间隔，所述网络设备根据所述第三小区和/或第四小区的***参数，确定所述x或者所述y，包括：In some possible implementation manners, the system parameter includes a subcarrier interval, and the network device determines the x or the y according to a system parameter of the third cell and / or the fourth cell, including:

所述网络设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值，确定所述x或者所述y；或者Determining, by the network device, the x or the y according to a minimum value of a subcarrier interval of the second uplink resource and a subcarrier interval of the second downlink resource; or

所述网络设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值，确定所述x或者所述y。Determining, by the network device, the x or the y according to a maximum value of a subcarrier interval of the second uplink resource and a maximum value of the subcarrier interval of the second downlink resource.

结合第四方面，在第四方面的某些可能的实现方式中，该方法还包括：该网络设备向该终端设备发送第三指示信息，该第三指示信息用于指示该终端设备接收该通信失败响应信息。With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the method further includes: the network device sends third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to receive the communication Failure response message.

结合第四方面，在第四方面的某些可能的实现方式中，该第三指示信息包括用于指示接收该通信失败响应信息的起始时刻的信息、该第四小区的标识信息、用于接收该通信失败响应信息的控制资源集合的标识信息或者用于接收该通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the third indication information includes information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, and One or more of identification information of a control resource set receiving the communication failure response information or identification information of a search space set for receiving the communication failure response information.

结合第四方面，在第四方面的某些可能的实现方式中，该第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the third indication information is carried in one of downlink control information DCI, media access control layer control element MAC CE, or radio resource control RRC signaling Or more.

结合第四方面，在第四方面的某些可能的实现方式中，该第三指示信息承载于DCI中，该DCI为专用于指示该终端设备接收该响应信息的信令。With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the third indication information is carried in a DCI, and the DCI is dedicated to instruct the terminal device to receive the response information.

结合第四方面，在第四方面的某些可能的实现方式中，该第三指示信息承载于DCI的字段中，该DCI用于上行数据或者下行数据的传输。With reference to the fourth aspect, in some possible implementation manners of the fourth aspect, the third indication information is carried in a DCI field, and the DCI is used for transmission of uplink data or downlink data.

结合第四方面，在第五方面的某些可能的实现方式中，该字段承载于所述DCI中的时频资源指示字域中。With reference to the fourth aspect, in some possible implementation manners of the fifth aspect, this field is carried in a time-frequency resource indicator field in the DCI.

第五方面，提供了一种通信失败方法，包括：终端设备在第二上行资源上，在第p个时间单元向网络设备发送第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；According to a fifth aspect, a communication failure method is provided, including: on a second uplink resource, the terminal device sends first instruction information to the network device at a p-th time unit, where the first instruction information is used to indicate the first Communication on the bank resource failed;

所述终端设备在第q个时间单元或第q个时间单元开始的时间窗内，检测通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；Detecting, by the terminal device, communication failure response information within a time window starting at the qth time unit or the qth time unit, where the communication failure response information is a pair of first downlinks carried on a second downlink resource; Response to communication failure on the resource;

其中，所述p为大于或者等于0的数，所述q为大于或者等于0的数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同；The p is a number greater than or equal to 0, the q is a number greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or, the spatial related parameters associated with the second uplink resource are different from the spatial related parameters associated with the second downlink resource;

所述第p个时间单元为根据所述第三小区的***参数和/或所述第四小区的***参数确定的时间单元；The p-th time unit is a time unit determined according to a system parameter of the third cell and / or a system parameter of the fourth cell;

所述第q个时间单元为根据所述p，和/或，所述第三小区的***参数，和/或，所述第四小区的***参数确定的时间单元。The q-th time unit is a time unit determined according to the p, and / or, a system parameter of the third cell, and / or, a system parameter of the fourth cell.

可选的，所述第p时间单元为第三小区的上行的第p个时间单元。Optionally, the p-th time unit is an uplink p-th time unit of the third cell.

可选的，所述q时间单元为第四小区的下行的第q个时间单元。Optionally, the q time unit is a downlink qth time unit of the fourth cell.

在某些可能的实现方式中，所述p个时间单元为根据所述第三小区的上行载波的***参数确定的时间单元；或者In some possible implementation manners, the p time units are time units determined according to a system parameter of an uplink carrier of the third cell; or

所述p个时间单元为根据所述第二上行资源的***参数确定的时间单元；或者The p time units are time units determined according to a system parameter of the second uplink resource; or

所述p时间单元为根据所述第三小区的第三上行资源的***参数确定的时间单元；The p time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell;

所述p时间单元为根据所述第三小区的所有上行资源的中***参数最小的上行资源的***参数确定的时间单元。The p time unit is a time unit determined according to a system parameter of an uplink resource with a minimum system parameter among all uplink resources of the third cell.

在某些可能的实现方式中，所述第q个时间单元为根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定的时间单元；或者In some possible implementation manners, the qth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述第q个时间单元为根据所述第二上行资源的***参数与第二下行资源的***参数确定的时间单元；或者The qth time unit is a time unit determined according to the system parameter of the second uplink resource and the system parameter of the second downlink resource; or

所述第q个时间单元根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定的时间单元；或者A time unit determined by the qth time unit according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述第q个时间单元为根据所述第三小区的上行载波的***参数、所述第四小区的下行载波的***参数和所述p确定的时间单元；或者The qth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell, a system parameter of a downlink carrier of the fourth cell, and the p; or

所述第q个时间单元为根据所述第二上行资源的***参数、第二下行资源的***参数和所述p确定的时间单元；或者The qth time unit is a time unit determined according to the system parameter of the second uplink resource, the system parameter of the second downlink resource, and the p; or

所述第q个时间单元为根据所述第三小区的第三上行资源的***参数、第四小区的第三下行资源的***参数和所述p确定的时间单元。The qth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell, a system parameter of a third downlink resource of the fourth cell, and p.

在某些可能的实现方式中，所述q为通过以下任一个公式确定的；In some possible implementation manners, the q is determined by using any one of the following formulas;

或者，所述q为通过以下任一个公式确定的：Alternatively, the q is determined by any one of the following formulas:

其中，

为下取整运算，

为上取整运算；所述K大于或等于0的整数；所述μ1是第三小区的上行载波的***参数，或者，μ1是第二上行资源的***参数，或者，μ1是第三小区的第三上行资源的***参数；μ2是第四小区的下行载波的***参数，或者，μ2是第四小区的第二下行资源的***参数；或者，μ2是第四小区的第三下行资源的***参数。 among them,

For rounding down operations,

Is a round-up operation; the K is an integer greater than or equal to 0; the μ1 is a system parameter of the uplink carrier of the third cell, or μ1 is a system parameter of the second uplink resource, or μ1 is of the third cell System parameter of the third uplink resource; μ2 is a system parameter of the downlink carrier of the fourth cell, or μ2 is a system parameter of the second downlink resource of the fourth cell; or μ2 is a system of the third downlink resource of the fourth cell parameter.

其中，q是哪个***参数确定的时间单元的个数，K与K1就是哪个***参数确定的时间单元的个数。如，q是第四小区的下行子载波的时间单元的个数，K，K1也为第四小区的下行子载波的时间单元的个数。其中，Z可以是网络设备发送的或者是预定义的或者终端能力上报的，Z可以表示时长，如若干毫秒的时长。所述K或Z为正整数。Among them, q is the number of time units determined by which system parameter, and K and K1 are the number of time units determined by which system parameter. For example, q is the number of time units of the downlink subcarriers of the fourth cell, and K, K1 are also the number of time units of the downlink subcarriers of the fourth cell. Among them, Z may be sent by a network device or may be predefined or reported by a terminal capability, and Z may represent a duration, such as a duration of several milliseconds. The K or Z is a positive integer.

其中，所述K为预定义的或者终端设备能力上报的或者网络设备指示的(如通过第三指示信息指示)，如K为4个时隙。Wherein, K is predefined or reported by the terminal equipment capability or indicated by the network equipment (such as indicated by the third instruction information), such as K is 4 time slots.

其中，所述Z为预定义的或者终端设备能力上报的或者网络设备指示的(如通过第三指示信息指示)，可选的，所述Z＝4。Wherein, Z is predefined or reported by the terminal device capability or indicated by the network device (as indicated by the third instruction information), and optionally, Z = 4.

其中，k1为预定义的大于或等于0的整数。可选地K1＝1或0。Among them, k1 is a predefined integer greater than or equal to 0. Optionally K1 = 1 or 0.

可选的，所述K基于第四小区的下行载波的***参数或者第四小区的第二下行资源的***参数或者第四小区的第三下行资源的***参数确定的时间单元的个数。Optionally, the number of time units determined by K is based on a system parameter of a downlink carrier of a fourth cell or a system parameter of a second downlink resource of the fourth cell or a system parameter of a third downlink resource of the fourth cell.

在某些实现方式中，所述第p时间单元为第三小区的上行的第p个时间单元。In some implementation manners, the p-th time unit is an uplink p-th time unit of the third cell.

可选的，所述第q时间单元为第三小区的上行的第q个时间单元。Optionally, the qth time unit is an uplink qth time unit of the third cell.

所述终端设备根据所述第三小区的***参数确定所述q，包括：The determining, by the terminal device according to a system parameter of the third cell, the q includes:

所述终端设备根据所述第三小区的上行载波的***参数确定所述q；或者Determining, by the terminal device, q according to a system parameter of an uplink carrier of the third cell; or

所述终端设备根据所述第二上行资源的***参数确定所述q；或者Determining, by the terminal device, q according to a system parameter of the second uplink resource; or

所述终端设备根据所述第三小区的第三上行资源的***参数确定所述q；Determining, by the terminal device, q according to a system parameter of a third uplink resource of the third cell;

所述终端设备根据所述第三小区的所有上行资源的***参数最小的上行资源的***参数确定所述q。The terminal device determines the q according to a system parameter of an uplink resource with a minimum system parameter of all uplink resources of the third cell.

在某些可能的实现方式中，q可以通过以下公式确定：In some possible implementations, q can be determined by the following formula:

q＝p+Kq = p + K

其中K1是预定义的数为整数，可选地K1＝1或0，是指第三小区的上行的K1个时间单元。可选地，q是哪个***参数确定的时间单元的个数，K就是哪个***参数确定的时间单元的个数.所述K为预定义的或者终端设备能力上报的或者网络设备指示的(如通过第三指示信息指示)，如K为4个时隙。Where K1 is a predefined number as an integer, optionally K1 = 1 or 0, which refers to the K1 time unit of the uplink of the third cell. Optionally, q is the number of time units determined by which system parameter, and K is the number of time units determined by which system parameter. The K is predefined or reported by the terminal device capability or indicated by the network device (such as (Indicated by the third instruction information), for example, K is 4 time slots.

第六方面，提供了一种通信失败方法，包括：网络设备在第二上行资源上，在第t个时间单元向接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；According to a sixth aspect, a communication failure method is provided, including: first indication information sent by a network device to a receiving terminal device at a t-th time unit on a second uplink resource, where the first indication information is used to indicate a first Communication failure on a downlink resource;

所述网络设备在第s个时间单元或第s个时间单元开始的时间窗内，向所述终端设备发送通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The network device sends a communication failure response message to the terminal device within the s time unit or a time window starting from the s time unit, and the communication failure response information is an address information carried on a second downlink resource. A response to a communication failure on the first downlink resource;

其中，所述t为大于或者等于0的数，所述s为大于或者等于0的数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同；The t is a number greater than or equal to 0, the s is a number greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or, the spatial related parameters associated with the second uplink resource are different from the spatial related parameters associated with the second downlink resource;

所述第t个时间单元为根据所述第三小区的***参数和/或所述第四小区的***参数确定的时间单元；The t-th time unit is a time unit determined according to a system parameter of the third cell and / or a system parameter of the fourth cell;

所述第s个时间单元为根据所述t，和/或，所述第三小区的***参数，和/或，所述第四小区的***参数确定的时间单元。The sth time unit is a time unit determined according to t, and / or, a system parameter of the third cell, and / or, a system parameter of the fourth cell.

在某些可能的实现方式中，所述t个时间单元为根据所述第三小区的上行载波的***参数确定的时间单元；或者In some possible implementation manners, the t time units are time units determined according to a system parameter of an uplink carrier of the third cell; or

所述t个时间单元为根据所述第二上行资源的***参数确定的时间单元；或者The t time units are time units determined according to a system parameter of the second uplink resource; or

所述t时间单元为根据所述第三小区的第三上行资源的***参数确定的时间单元；The t time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell;

所述t时间单元为根据所述第三小区的所有上行资源的中***参数最小的上行资源的***参数确定的时间单元。The t time unit is a time unit determined according to a system parameter of an uplink resource with a minimum system parameter among all uplink resources of the third cell.

在某些可能的实现方式中，所述第s个时间单元为根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定的时间单元；或者In some possible implementation manners, the sth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述第s个时间单元为根据所述第二上行资源的***参数与第二下行资源的***参数确定的时间单元；或者The sth time unit is a time unit determined according to the system parameter of the second uplink resource and the system parameter of the second downlink resource; or

所述第s个时间单元根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定的时间单元；或者The sth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述第s个时间单元为根据所述第三小区的上行载波的***参数、所述第四小区的下行载波的***参数和所述t确定的时间单元；或者The sth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell, a system parameter of a downlink carrier of the fourth cell, and t; or

所述第s个时间单元为根据所述第二上行资源的***参数、第二下行资源的***参数和所述t确定的时间单元；或者The sth time unit is a time unit determined according to the system parameter of the second uplink resource, the system parameter of the second downlink resource, and t; or

所述第s个时间单元为根据所述第三小区的第三上行资源的***参数、第四小区的第三下行资源的***参数和所述t确定的时间单元。The sth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell, a system parameter of a third downlink resource of the fourth cell, and t.

在某些可能的实现方式中，所述s为通过公式(6)、公式(7)、公式(8)、公式(9)或公式(10)中的任一个公式确定的；In some possible implementation manners, the s is determined by using any one of formula (6), formula (7), formula (8), formula (9), or formula (10);

其中，

为下取整运算，

为上取整运算；所述L为大于或等于0的整数；所述μ1是第三小区的上行载波的***参数，或者，μ1是第二上行资源的***参数，或者，μ1是第三小区的第三上行资源的***参数；μ2是第四小区的下行载波的***参数，或者，μ2是第四小区的第二下行资源的***参数；或者，μ2是第四小区的第三下行资源的***参数。 among them,

For rounding down operations,

Is a round-up operation; the L is an integer greater than or equal to 0; the μ1 is a system parameter of an uplink carrier of a third cell, or μ1 is a system parameter of a second uplink resource, or μ1 is a third cell The system parameter of the third uplink resource of μ3; μ2 is the system parameter of the downlink carrier of the fourth cell, or μ2 is the system parameter of the second downlink resource of the fourth cell; or μ2 is the third downlink resource of the fourth cell. System parameters.

在一些可能的实现方式中，在第五方面和第六方面中，

可以替换为

所述f1是第三小区的上行载波的子载波间隔，或者，f1是第二上行资源的子载波间隔，或者，f1是第三小区的第三上行资源的子载波间隔；f2是第四小区的下行载波的子载波间隔，或者，f2是第四小区的第二下行资源的子载波间隔；或者，f2是第四小区的第三下行资源的子载波间隔。其中f1和f2等价于表7中的Δf。 In some possible implementation manners, in the fifth aspect and the sixth aspect,

Can be replaced with

The f1 is the subcarrier interval of the uplink carrier of the third cell, or f1 is the subcarrier interval of the second uplink resource, or f1 is the subcarrier interval of the third uplink resource of the third cell; f2 is the fourth cell Or f2 is the subcarrier interval of the second downlink resource of the fourth cell; or f2 is the subcarrier interval of the third downlink resource of the fourth cell. Where f1 and f2 are equivalent to Δf in Table 7.

第七方面，提供了一种通信失败恢复的装置，该装置包括用于执行第一方面或第一方面任意可能的实现方式中的方法中各个步骤的单元，或者包括用于执行第三方面或第三方面任意可能的实现方式中的方法中各个步骤的单元，或者包括用于执行第五方面或第五方面任意可能的实现方式中的方法中各个步骤的单元。According to a seventh aspect, an apparatus for recovering from communication failure is provided. The apparatus includes a unit for performing each step in the method in the first aspect or any possible implementation manner of the first aspect, or includes performing the third aspect or A unit of each step in the method in any possible implementation of the third aspect, or a unit for performing each step in the method in the fifth aspect or the method in any possible implementation of the fifth aspect.

第八方面，提供了一种通信失败恢复的装置，该装置包括用于执行第二方面或第二方面任意可能的实现方式中的方法中各个步骤的单元，或者包括用于执行第四方面或第四方面任意可能的实现方式中的方法中各个步骤的单元，或者包括用于执行第六方面或第六方面任意可能的实现方式中的方法中各个步骤的单元。According to an eighth aspect, an apparatus for recovering from a communication failure is provided. The apparatus includes a unit for performing each step in the method in the second aspect or any possible implementation manner of the second aspect, or includes means for performing the fourth aspect or A unit of each step in the method in any possible implementation of the fourth aspect, or a unit for performing each step in the method in the sixth aspect or the method in any possible implementation of the sixth aspect.

第九方面，提供了一种通信失败恢复的装置，该装置包括：收发器、存储器和处理器。其中，该收发器、该存储器和该处理器通过内部连接通路互相通信，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，以控制接收器接收信号，并控制发送器发送信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第一方面或第一方面的任一种可能的实现方式中的方法，或者第三方面或第三方面任意可能的实现方式中的方法，或者第五方面或第五方面任意可能的实现方式中的方法。In a ninth aspect, an apparatus for recovering communication failure is provided. The apparatus includes a transceiver, a memory, and a processor. The transceiver, the memory, and the processor communicate with each other through an internal connection path. The memory is used to store instructions. The processor is used to execute the instructions stored in the memory to control the receiver to receive signals and to control the transmitter to send signals. And when the processor executes the instructions stored in the memory, the execution causes the processor to execute the method in the first aspect or any possible implementation manner of the first aspect, or the third aspect or any possibility of the third aspect The method in the implementation manner of the method, or the method in the fifth aspect or any possible implementation manner of the fifth aspect.

第十方面，提供了一种通信失败恢复的装置，该装置包括：收发器、存储器和处理器。其中，该收发器、该存储器和该处理器通过内部连接通路互相通信，该存储器用于存储指令，该处理器用于执行该存储器存储的指令，以控制接收器接收信号，并控制发送器发送信号，并且当该处理器执行该存储器存储的指令时，该执行使得该处理器执行第二方面或第二方面的任一种可能的实现方式中的方法，或者第四方面或第四方面任意可能的实现方式中的方法，或者第六方面或第六方面任意可能的实现方式中的方法。According to a tenth aspect, an apparatus for recovering communication failure is provided. The apparatus includes a transceiver, a memory, and a processor. The transceiver, the memory, and the processor communicate with each other through an internal connection path. The memory is used to store instructions. The processor is used to execute the instructions stored in the memory to control the receiver to receive signals and the transmitter to send signals. And when the processor executes the instructions stored in the memory, the execution causes the processor to execute the method in the second aspect or any one of the possible implementation manners of the second aspect, or the fourth aspect or any possibility of the fourth aspect The method in the implementation manner of the method, or the method in the sixth aspect or any possible implementation manner of the sixth aspect.

第十一方面，提供了一种通信失败恢复的***，该***包括上述第七方面提供的装置以及第八方面提供的装置；或者According to an eleventh aspect, a system for recovering from communication failure is provided. The system includes the device provided in the seventh aspect and the device provided in the eighth aspect; or

该***包括上述第九方面提供的装置以及第十方面提供的装置。The system includes the device provided by the ninth aspect and the device provided by the tenth aspect.

第十二方面，提供了一种计算机程序产品，该计算机程序产品包括计算机程序，该计算机程序在被处理器执行时，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，或者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，或者执行第五方面或第五方面的任意可能的实现方式中的方法。According to a twelfth aspect, a computer program product is provided. The computer program product includes a computer program that, when executed by a processor, is used to execute the first aspect or a method in any possible implementation manner of the first aspect. Or execute the method in the third aspect or any possible implementation of the third aspect, or the method in the fifth aspect or any possible implementation of the fifth aspect.

第十三方面，提供了一种计算机程序产品，该计算机程序产品包括计算机程序，该计算机程序在被处理器执行时，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，或者执行第四方面或第四方面的任意可能的实现方式中的方法，或者执行第六方面或第六方面的任意可能的实现方式中的方法。According to a thirteenth aspect, a computer program product is provided. The computer program product includes a computer program that, when executed by a processor, is used to execute the second aspect or a method in any possible implementation manner of the second aspect. Or execute the method in the fourth aspect or any possible implementation of the fourth aspect, or the method in the sixth aspect or any possible implementation of the sixth aspect.

第十四方面，提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当该计算机程序被执行时，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，或者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，或者执行第五方面或第五方面的任意可能的实现方式中的方法。According to a fourteenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed, it is used to execute the first aspect or any possible implementation manner of the first aspect. Method, or the method in the third aspect or any possible implementation of the third aspect, or the method in the fifth aspect or any possible implementation of the fifth aspect.

第十五方面，提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，当该计算机程序被执行时，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，或者执行第四方面或第四方面的任意可能的实现方式中的方法，或者执行第六方面或第六方面的任意可能的实现方式中的方法。According to a fifteenth aspect, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed, it is used to execute the second aspect or any possible implementation manner of the second aspect. Method, or the method in the fourth aspect or any possible implementation of the fourth aspect, or the method in the sixth aspect or any possible implementation of the sixth aspect.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1是本申请实施例适用的通信***的示意图。FIG. 1 is a schematic diagram of a communication system to which an embodiment of the present application is applied.

图2是本申请实施例适用的通信***的另一示意图。FIG. 2 is another schematic diagram of a communication system applicable to an embodiment of the present application.

图3是本申请实施例提供的通信失败恢复流程的示意性流程图。FIG. 3 is a schematic flowchart of a communication failure recovery process according to an embodiment of the present application.

图4是本申请实施例提供的通信失败恢复的方法的示意性流程图。FIG. 4 is a schematic flowchart of a communication failure recovery method according to an embodiment of the present application.

图5是本申请实施例提供的通信失败恢复的方法的另一示意性流程图。FIG. 5 is another schematic flowchart of a communication failure recovery method according to an embodiment of the present application.

图6是本申请实施例提供的通信失败恢复的装置的示意性框图。FIG. 6 is a schematic block diagram of a device for recovering from a communication failure according to an embodiment of the present application.

图7是本申请实施例提供的通信失败恢复的装置的另一示意性框图。FIG. 7 is another schematic block diagram of a device for recovering from a communication failure according to an embodiment of the present application.

图8是本申请实施例提供的通信失败恢复的装置的再一示意性框图。FIG. 8 is another schematic block diagram of a device for recovering from a communication failure according to an embodiment of the present application.

图9是本申请实施例提供的通信失败恢复的装置的再一示意性框图。FIG. 9 is another schematic block diagram of a device for recovering from a communication failure according to an embodiment of the present application.

图10是本申请实施例提供的通信失败恢复的装置的再一示意性框图。FIG. 10 is another schematic block diagram of a device for recovering from a communication failure according to an embodiment of the present application.

具体实施方式detailed description

下面将结合附图，对本申请中的术语进行描述。The terms in this application will be described below with reference to the drawings.

本申请实施例的技术方案可以应用于各种通信***，例如：全球移动通讯(global system of mobile communication，GSM)***、码分多址(code division multiple access，CDMA)***、宽带码分多址(wideband code division multiple access，WCDMA)***、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)***、LTE频分双工(frequency division duplex，FDD)***、LTE时分双工(time division duplex，TDD)、通用移动通信***(univeRMal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信***、未来的第五代(5th generation，5G)移动通信***或新无线(new radio，NR)等，本申请所述的5G移动通信***包括非独立组网(non-standalone，NSA)的5G移动通信***和/或独立组网(standalone，SA)的5G移动通信***。本申请提供的技术方案还可以应用于未来的通信***，如第六代移动通信***。The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, a global mobile communication (GSM) system, a code division multiple access (CDMA) system, and a broadband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE Time division duplex (TDD), universal mobile communication system (UMTS), global telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, 5th generation in the future (5th generation, 5G) mobile communication system or new radio (NR), etc. The 5G mobile communication system described in this application includes a 5G mobile communication system and / or a standalone network (non-standalone (NSA)) , SA) 5G mobile communication system. The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system.

本申请实施例中的终端设备可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。The terminal device in the embodiments of the present application may refer to user equipment, access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or User device. Terminal equipment can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless communications Functional handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or public land mobile network (PLMN) in future evolution Terminal equipment and the like are not limited in this embodiment of the present application.

本申请实施例中的网络设备是无线网络中的设备，例如将终端接入到无线网络的无线接入网(radio access network，RAN)节点。目前，一些RAN节点的举例为：基站、下一代基站gNB、发送接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、家庭基站、基带单元(baseband unit，BBU)，或WiFi***中的接入点(access point，AP)等。在一种网络结构中，网络设备可以包括集中单元(centralized unit，CU)节点、或分布单元(distributed unit，DU)节点、或包括CU节点和DU节点的RAN设备。The network device in the embodiment of the present application is a device in a wireless network, for example, a radio access network (RAN) node that connects a terminal to the wireless network. At present, some examples of RAN nodes are: base station, next-generation base station gNB, transmission and reception point (TRP), evolved Node B (eNB), home base station, and baseband unit (BBU). , Or an access point (AP) in a WiFi system. In a network structure, a network device may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作***层，以及运行在操作***层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作***可以是任意一种或多种通过进程(process)实现业务处理的计算机操作***，例如，Linux操作***、Unix操作***、Android操作***、iOS操作***或windows操作***等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。In the embodiment of the present application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. This hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system may be any one or more computer operating systems that implement business processing through processes, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. This application layer contains applications such as browsers, address books, word processing software, and instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided by the embodiment of the present application, as long as the program that records the code of the method provided by the embodiment of the application can be run to provide the program according to the embodiment of the application. The communication may be performed by using the method described above. For example, the method execution subject provided in the embodiments of the present application may be a terminal device or a network device, or a function module in the terminal device or the network device that can call a program and execute the program.

另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于:磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (eg, hard disks, floppy disks, or magnetic tapes, etc.), optical disks (eg, compact discs (CD), digital versatile discs (DVD) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and / or other machine-readable media used to store information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instruction (s) and / or data.

图1是一种适用本申请的通信***100。该通信***100处于单载波场景或载波聚合场景(carrier aggregation，CA)中，该通信***100包括网络设备110和终端设备120，网络设备110与终端设备120通过无线网络进行通信，当终端设备120检测到网络设备110和终端设备120之间的链路发生故障后，终端设备120向网络设备110发送链路失败恢复请求(beam failure recovery request，BFRQ)，网络设备110接收到该BFRQ后，向终端设备120发送链路失败恢复响应(beam failure recovery response，BFRR)。FIG. 1 is a communication system 100 applicable to the present application. The communication system 100 is in a single-carrier scenario or a carrier aggregation (CA) scenario. The communication system 100 includes a network device 110 and a terminal device 120. The network device 110 and the terminal device 120 communicate through a wireless network. When the terminal device 120 After detecting a link failure between the network device 110 and the terminal device 120, the terminal device 120 sends a link failure recovery request (BFRQ) to the network device 110. After receiving the BFRQ, the network device 110 sends the link failure recovery request to the network device 110. The terminal device 120 sends a link failure recovery response (BFRR).

应理解，图1中网络设备110下可以包括多个小区，例如，包括第一小区和第二小区，若终端设备和该网络设备在第二小区的链路发生故障，该第一小区可以辅助该第二小区进行链路恢复，例如，该终端设备可以在属于该第一小区的上行资源上向该网络设备发送该BFRQ信息，该终端设备可以在属于该第二小区的下行资源上接收该网络设备发送的该BFRR信息。It should be understood that the network device 110 in FIG. 1 may include multiple cells, for example, including the first cell and the second cell. If the link between the terminal device and the network device in the second cell fails, the first cell may assist The second cell performs link recovery. For example, the terminal device may send the BFRQ information to the network device on uplink resources belonging to the first cell, and the terminal device may receive the BFRQ information on downlink resources belonging to the second cell. The BFRR information sent by the network device.

当通信***100的传输方向为上行传输时，终端设备120为发送端，网络设备110为接收端，当通信***100的传输方向为下行传输时，网络设备110为发送端，终端设备120为接收端。When the transmission direction of the communication system 100 is uplink transmission, the terminal device 120 is the transmitting end, and the network device 110 is the receiving end. When the transmission direction of the communication system 100 is the downlink transmission, the network device 110 is the transmitting end, and the terminal device 120 is the receiving end. end.

图2是一种适用本申请的通信***200。该通信***200处于双链接(dual connectivity，DC)或多点协作传输(coordinated multipoint transmission/reception，CoMP)的场景中，该通信***200包括网络设备210、网络设备220和终端设备230，网络设备210为终端设备230初始接入时的网络设备，负责与终端设备230之间的RRC通信，网络设备220是在RRC重配置时添加的，用于提供额外的无线资源。配置了载波聚合(CA)的终端设备230与网络设备210和网络设备220相连，网络设备210和终端设备230之间的链路可以为称之为第一链路，网络设备220和终端设备230之间的链路可以称之为第二链路。FIG. 2 is a communication system 200 to which the present application is applied. The communication system 200 is in a dual link (DC) or coordinated multipoint transmission / reception (CoMP) scenario. The communication system 200 includes a network device 210, a network device 220, and a terminal device 230. The network device 210 is a network device when the terminal device 230 is initially connected, and is responsible for RRC communication with the terminal device 230. The network device 220 is added during RRC reconfiguration to provide additional wireless resources. The terminal device 230 configured with carrier aggregation (CA) is connected to the network device 210 and the network device 220. The link between the network device 210 and the terminal device 230 may be referred to as a first link. The network device 220 and the terminal device 230 The link between them can be called a second link.

当网络设备210和网络设备220可以都向终端设备230配置用于传输BFRQ的上行资源时，当该第一链路或者第二链路发生故障，则终端设备230可以在用于传输BFRQ的上行资源上向网络设备210或者网络设备220发送BFRQ，网络设备210或者网络设备220收到该BFRQ后，向终端设备230发送BFRR。When the network device 210 and the network device 220 can both configure uplink resources for transmitting BFRQ to the terminal device 230, when the first link or the second link fails, the terminal device 230 can transmit uplink resources for transmitting BFRQ. The resource sends a BFRQ to the network device 210 or the network device 220. After receiving the BFRQ, the network device 210 or the network device 220 sends a BFRR to the terminal device 230.

特别地，若该网络设备220没有配置用于传输BFRQ的上行资源，那么当该第二链路发生故障时，该终端设备230可以通过该网络设备210恢复该第二链路。In particular, if the network device 220 is not configured with uplink resources for transmitting BFRQ, when the second link fails, the terminal device 230 can restore the second link through the network device 210.

上述适用本申请的通信***仅是举例说明，适用本申请的通信***不限于此，例如，通信***中包括的网络设备和终端设备的数量还可以是其它的数量，或者采用单基站、多载波聚合的场景、双链接的场景或设备到设备(device to device，D2D)通信场景。The above communication system applicable to the present application is merely an example, and the communication system applicable to the present application is not limited thereto. For example, the number of network devices and terminal devices included in the communication system may be other numbers, or a single base station or multi-carrier is used. Aggregated scenarios, dual-link scenarios, or device-to-device (D2D) communication scenarios.

为了便于理解本申请，在介绍本申请提供的通信失败恢复的方法之前，首先对本申请涉及的概念做简要介绍。In order to facilitate understanding of the present application, before introducing the communication failure recovery method provided by the present application, firstly briefly introduce the concepts involved in the present application.

1、控制资源集合(control resource set，CORESET)1. Control resource set (CORESET)

为了提高终端设备盲检控制信道的效率，NR标准制定过程中提出了控制资源集合的概念。网络设备可为终端设备配置一个或多个资源集合，用于发送物理下行控制信道(physical downlink control channel，PDCCH)。网络设备可以在终端设备对应的任一控制资源集合上，向终端设备发送控制信道。此外，网络设备还需要通知终端设备所述控制资源集合的相关联的其他配置，例如搜索空间集合等。每个控制资源集合的配置信息存在差异，例如频域宽度差异、时域长度差异等。可扩展地，本申请中的控制资源集合可以是5G移动通信***定义的CORESET或控制区域(control region)或增强物理下行控制信道(enhanced-physical downlink control channel，ePDCCH)集合(set)。In order to improve the efficiency of blind detection of control channels by terminal equipment, the concept of control resource set was proposed during the NR standard formulation process. The network device may configure one or more resource sets for the terminal device for sending a physical downlink control channel (physical downlink control channel, PDCCH). The network device may send a control channel to the terminal device on any set of control resources corresponding to the terminal device. In addition, the network device needs to notify the terminal device of other related configurations of the control resource set, such as a search space set. There is a difference in the configuration information of each control resource set, such as a frequency domain width difference and a time domain length difference. Scalablely, the control resource set in the present application may be a CORESET or a control region (control region) or an enhanced physical downlink control channel (ePDCCH) set defined by a 5G mobile communication system.

PDCCH所占用的时频位置可以称之为下行控制区域。在LTE中，PDCCH始终位于一个子帧的前m个(m可能的取值为1、2、3和4)符号。应注意，LTE中E-PDCCH和R-PDCCH的位置未处于前m个符号。The time-frequency position occupied by the PDCCH may be referred to as a downlink control region. In LTE, the PDCCH is always located in the first m symbols (possible values of m are 1, 2, 3, and 4) of a subframe. It should be noted that the positions of the E-PDCCH and R-PDCCH in LTE are not in the first m symbols.

在NR中，下行控制区域可以由RRC信令通过控制资源集合(control resource set，CORESET)和搜索空间集合(search space set)灵活配置：In NR, the downlink control area can be flexibly configured by RRC signaling through a control resource set (CORESET) and a search space set (search space set):

控制资源集合可配置PDCCH或控制信道单元(control channel element，CCE)的频域位置，时域的持续符号数(最大值为3)等信息；The control resource set may be configured with information such as a frequency domain position of a PDCCH or a control channel element (CCE), and a continuous number of symbols in a time domain (the maximum value is 3);

搜索空间集合可配置PDCCH的检测周期以及偏移量，在一个时隙内的起始符号等信息。The search space set may be configured with information such as a detection period and an offset of the PDCCH, and a start symbol in a time slot.

例如，搜索空间集合可配置PDCCH周期为1个时隙，而时域起始符号为符号0，则终端设备可以在每个时隙的起始位置检测PDCCH。For example, the search space set may configure the PDCCH period to be one time slot, and the time domain start symbol is symbol 0, and the terminal device may detect the PDCCH at the start position of each time slot.

2、QCL信息2.QCL information

准共站/准共址QCL假设信息也可以称为同位置假设(quasi-collocation，QCL)信息，QCL信息用于辅助描述终端设备接收波束赋形信息以及接收流程。The quasi-co-site / quasi-co-location QCL hypothesis information can also be referred to as quasi-collocation (QCL) information. The QCL information is used to assist in describing the terminal device receiving beamforming information and the receiving process.

QCL信息用于指示两种参考信号之间的QCL关系，其中目标参考信号一般是可以是解调参考信号(demodulation reference signal，DMRS)，信道状态信息参考信号(channel state information reference signal，CSI-RS)等，而被引用的参考信号或者源参考信号一般可以是CSI-RS、追踪参考信号(tracking reference signal，TRS)、同步信号广播信道块(synchronous signal/PBCH block，SSB)等。QCL information is used to indicate the QCL relationship between two reference signals. The target reference signal is generally a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS). ), Etc., and the reference signal or source reference signal may generally be CSI-RS, tracking reference signal (TRS), synchronous signal broadcast channel block (synchronous signal / PBCH block, SSB), and the like.

spatial relation：空间相关信息用于辅助描述终端设备发射侧波束赋形信息以及发射流程。Spatial correlation: Spatial correlation information is used to assist in describing the beamforming information on the transmitting side of the terminal device and the transmission process.

spatial relation信息用于指示两种参考信号之间的空间发送参数关系，其中目标参考信号一般是可以是DMRS，SRS等，而被引用的参考信号或者源参考信号一般可以是CSI-RS、SRS、SSB等。The spatial relationship information is used to indicate the spatial transmission parameter relationship between two reference signals, where the target reference signal can be DMRS, SRS, etc., and the referenced reference signal or source reference signal can generally be CSI-RS, SRS, SSB, etc.

应理解，满足QCL关系的两个参考信号或信道的空间特性参数是相同的，从而基于该源参考信号资源索引可推断出目标参考信号的空间特性参数。It should be understood that the spatial characteristic parameters of the two reference signals or channels that satisfy the QCL relationship are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the source reference signal resource index.

还应理解，满足空间相关性信息的两个参考信号或信道的空间特性参数是相同的，从而基于该源参考信号资源索引可推断出目标参考信号的空间特性参数。It should also be understood that the spatial characteristic parameters of the two reference signals or channels that satisfy the spatial correlation information are the same, so that the spatial characteristic parameters of the target reference signal can be inferred based on the source reference signal resource index.

其中，空间特性参数包括以下参数中的一种或多种：Among them, the spatial characteristic parameter includes one or more of the following parameters:

入射角(angle of arrival，AoA)、主(dominant)入射角AoA、平均入射角、入射角的功率角度谱(power angular spectrum，PAS)、出射角(angle of departure，AoD)、主出射角、平均出射角、出射角的功率角度谱、终端设备发送波束成型、终端设备接收波束成型、空间信道相关性、网络设备发送波束成型、网络设备接收波束成型、平均信道增益、平均信道时延(average delay)、时延扩展(delay spread)、多普勒扩展(Doppler spread)、多普勒频移(Doppler shift)、空间接收参数(spatial Rx parameters)等。Angle of incidence (AoA), dominant angle of incidence AoA, average angle of incidence, power angle spectrum (PAS) of angle of incidence, angle of departure (AoD), angle of main emission, Average exit angle, power angle spectrum of exit angle, terminal device transmit beamforming, terminal device receive beamforming, spatial channel correlation, network device transmit beamforming, network device receive beamforming, average channel gain, average channel delay (average delay), delay spread, Doppler spread, Doppler shift, spatial Rx parameters and so on.

这些空间特性参数描述了源参考信号与目标参考信号的天线端口间的空间信道特性，有助于终端设备根据该QCL信息完成接收侧波束赋形或接收处理过程。应理解，终端设备可以根据QCL信息指示的源参考信号的接收波束信息，接收目标参考信号；这些空间特性参数还有助于终端设备根据该空间相关信息完成发射侧波束赋形或者发射处理过程，应理解，终端设备可以根据空间相关信息指示的源参考信号的发射波束信息，发射目标参考信号。These spatial characteristic parameters describe the spatial channel characteristics between the antenna ports of the source reference signal and the target reference signal, and are helpful for the terminal device to complete the receiving side beamforming or receiving processing process according to the QCL information. It should be understood that the terminal device can receive the target reference signal according to the received beam information of the source reference signal indicated by the QCL information; these spatial characteristic parameters also help the terminal device to complete the beamforming or transmission processing on the transmitting side according to the spatial related information. It should be understood that the terminal device may transmit the target reference signal according to the transmission beam information of the source reference signal indicated by the spatial correlation information.

其中，为了节省网络设备对终端设备的QCL信息指示开销，作为一种可选的实施方式，网络设备可以指示PDCCH或物理下行共享信道(physical downlink shared channel，PDSCH)的解调参考信号与终端设备之前上报的多个参考信号资源中的一个或多个是满足QCL关系的，例如，该参考信号可以是CSI-RS。这里，每一个上报的CSI-RS资源索引对应了一个之前基于该CSI-RS资源测量时建立的一个收发波束对。应理解，满足QCL关系的两个参考信号或信道的接收波束信息是相同的，该终端设备可以根据该参考信号资源索引推断出接收PDCCH或PDSCH的接收波束信息。Among them, in order to save the overhead of QCL information indication of the terminal equipment by the network equipment, as an optional implementation manner, the network equipment may instruct the demodulation reference signal of the PDCCH or the physical downlink shared channel (PDSCH) and the terminal equipment. One or more of the previously reported multiple reference signal resources satisfy the QCL relationship. For example, the reference signal may be a CSI-RS. Here, each reported CSI-RS resource index corresponds to a transmit / receive beam pair that was previously established based on the CSI-RS resource measurement. It should be understood that the received beam information of the two reference signals or channels that satisfy the QCL relationship is the same, and the terminal device may infer the received beam information of the received PDCCH or PDSCH according to the reference signal resource index.

现有标准中定义了四种类型的QCL，网络设备可以同时给终端设备配置一个或多种类型的QCL，如QCL type A+D，C+D：There are four types of QCLs defined in the existing standards. Network devices can configure one or more types of QCLs for terminal devices at the same time, such as QCL types A + D, C + D:

QCL types A:Doppler shift,Doppler spread,average delay,delay spreadQCL types: A: Doppler shift, Doppler spread, average delay, delay spread

QCL types B:Doppler shift,Doppler spreadQCL types B: Doppler shift, Doppler spread

QCL types C:average delay,Doppler shiftQCL types: C: average, delay, Doppler shift

QCL types D:Spatial Rx parameterQCL Types: Spatial and Rx parameters

在本申请的举例中，某些参数的对应关系也可以应用于QCL描述下的场景。In the example of this application, the correspondence between certain parameters can also be applied to the scenario described by QCL.

应理解，本申请中适用于QCL假设的场景，也可以是两个参考信号，进一步或者是传输对象间的关联关系。It should be understood that the scenario applicable to the QCL assumption in this application may also be two reference signals, or further, an association relationship between transmission objects.

3、传输配置指示(transmission configuration indicator，TCI)状态3. Transmission configuration indicator (TCI) status

一个TCI状态(TCI state)可以包含一个或两个被引用的参考信号，及所关联的QCL类型(QCL type)。QCL类型又可以分为A/B/C/D四个类别，分别是{Doppler shift，Doppler spread，average delay，delay spread，spatial Rx parameter}的不同组合或选择。TCI状态包括QCL信息，或者TCI状态用于指示QCL信息。A TCI state can include one or two reference signals and the associated QCL type. QCL types can be divided into four categories: A / B / C / D, which are different combinations or choices of {Doppler shift, Doppler spread, average delay, delay spread, spatial Rx parameter). The TCI status includes QCL information, or the TCI status is used to indicate QCL information.

4、同步信号广播信道块(synchronous signal/PBCH block，SS/PBCH block)4. Synchronous signal broadcast channel block (synchronous signal / PBCH block, SS / PBCH block)

SS/PBCH block还可以称为SSB。其中，PBCH为物理广播信道(physical broadcast channel)的缩写。SSB包含主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和PBCH中的至少一个。主要用于小区搜索、小区同步、承载广播信息的信号。SS / PBCH block can also be called SSB. Among them, PBCH is an abbreviation of physical broadcast channel. The SSB includes at least one of a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a PBCH. It is mainly used for cell search, cell synchronization, and signals carrying broadcast information.

5、波束(beam)5.Beam

波束是一种通信资源。波束可以是宽波束，或者窄波束，或者其他类型波束。形成波束的技术可以是波束赋形技术或者其他技术手段。波束赋形技术可以具体为数字波束赋形技术，模拟波束赋形技术，混合数字/模拟波束赋形技术。不同的波束可以认为是不同的资源。通过不同的波束可以发送相同的信息或者不同的信息。可选的，可以将具有相同或者类似的通信特征的多个波束视为是一个波束。一个波束内可以包括一个或多个天线端口，用于传输数据信道，控制信道和探测信号等，例如，发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，形成一个波束的一个或多个天线端口也可以看作是一个天线端口集。A beam is a communication resource. The beam can be a wide beam, or a narrow beam, or another type of beam. The beam forming technology may be a beam forming technology or other technical means. The beamforming technology may be specifically a digital beamforming technology, an analog beamforming technology, and a hybrid digital / analog beamforming technology. Different beams can be considered as different resources. The same information or different information can be transmitted through different beams. Optionally, multiple beams having the same or similar communication characteristics may be considered as one beam. A beam may include one or more antenna ports for transmitting data channels, control channels, and detection signals. For example, a transmission beam may refer to a signal intensity distribution in different directions of a space after a signal is transmitted by an antenna. The receiving beam may refer to a signal strength distribution of a wireless signal received from an antenna in different directions in space. It can be understood that one or more antenna ports forming a beam can also be regarded as an antenna port set.

波束可以分为网络设备的发送波束和接收波束，与终端设备的发送波束和接收波束。网络设备的发送波束用于描述网络设备发送侧波束赋形信息，网络设备接收波束用于描述网络设备接收侧波束赋形信息，终端设备的发送波束用于描述终端设备发送侧波束赋形信息，终端设备接收波束用于描述终端设备接收侧波束赋形信息。也即波束用于描述波束赋形信息。Beams can be divided into transmit beams and receive beams of network equipment, and transmit beams and receive beams of terminal equipment. The transmitting beam of the network device is used to describe the beamforming information on the transmitting side of the network device, the receiving beam of the network device is used to describe the beamforming information on the receiving side of the network device, the transmitting beam of the terminal device is used to describe the beamforming information on the transmitting side of the terminal device, The receiving beam of the terminal device is used to describe the beamforming information of the receiving side of the terminal device. That is, the beam is used to describe the beamforming information.

波束可以和虚拟天线端口存在映射关系，也可以对应时间资源、空间资源或频域资源中的一种或者多种。The beam may have a mapping relationship with the virtual antenna port, and may correspond to one or more of time resources, space resources, or frequency domain resources.

可选地，波束还可以与参考信号资源(例如，波束赋形的参考信号资源)，或者波束赋形信息对应。Optionally, the beam may also correspond to a reference signal resource (for example, a beamforming reference signal resource) or beamforming information.

可选地，波束还可以与网络设备的参考信号资源关联的信息对应，其中参考信号可以为CSI-RS，SSB，DMRS,相位跟踪信号(phase tracking reference signal，PTRS)，跟踪信号(tracking reference signal，TRS)等，参考信号资源关联的信息可以是参考信号资源标识，或者QCL信息(特别是type D类型的QCL)等。其中，参考信号资源标识对应了之前基于该参考信号资源测量时建立的一个收发波束对，通过该参考信号资源索引，终端设备可推断波束信息。Optionally, the beam may also correspond to information associated with a reference signal resource of a network device, wherein the reference signal may be CSI-RS, SSB, DMRS, phase tracking signal (phase tracking signal, PTRS), and tracking signal (tracking reference signal) , TRS), etc., the information associated with the reference signal resource may be a reference signal resource identifier, or QCL information (especially type QCL). The reference signal resource identifier corresponds to a transmit / receive beam pair that was established during the previous measurement based on the reference signal resource. Through the reference signal resource index, the terminal device can infer the beam information.

可选地，波束还可以与空域滤波器(spatial filter，spatial domain filter)，空域传输滤波器(spatial domain transmission filter)对应。Optionally, the beam may also correspond to a spatial filter (spatial filter, spatial filter) and a spatial transmission filter (spatial filter).

6、带宽区域(bandwidth part，BWP)6. Bandwidth area (BWP)

网络设备可为终端设备配置一个或多个下行/上行带宽区域，该BWP是由频域上连续的PRB组成，BWP为终端设备带宽内的一个子集。该BWP在频域上的最小粒度是1个 PRB。***可为终端设备配置一个或多个带宽区域，且所述多个带宽区域在频域上可以重叠(overlap)。The network device may configure one or more downlink / uplink bandwidth regions for the terminal device. The BWP is composed of continuous PRBs in the frequency domain. The BWP is a subset of the terminal device bandwidth. The minimum granularity of the BWP in the frequency domain is 1 PRB. The system may configure one or more bandwidth regions for the terminal device, and the multiple bandwidth regions may overlap in the frequency domain.

在单载波场景下，一个终端设备在同一时刻只能有一个激活的BWP，终端设备只能在激活的BWP(active BWP)上接收数据/参考信号，或者发送数据/参考信号。In a single carrier scenario, a terminal device can only have one active BWP at a time, and the terminal device can only receive data / reference signals or send data / reference signals on the active BWP (active BWP).

在本申请中，适用于BWP场景的情况中，特定的BWP也可以是一个特定的频率上的带宽集合，或者是多个RB组成的集合。In the present application, in the case of a BWP scenario, a specific BWP may also be a bandwidth set on a specific frequency, or a set composed of multiple RBs.

7、为了检测链路失败及恢复链路失败所配置的参考信号7.Reference signal configured for detecting link failure and recovering link failure

为了检测和恢复链路故障，网络设备需要给终端设备配置用于波束失败检测的参考信号资源集合(例如，beam failure detection RS resourceconfig或beam failure detection RS或failure detection resources)和用于恢复终端设备与网络设备链路的参考信号资源集合(candidate beam RS list或candidate beam RS identification resource或beam failure candidate beam resource或candidate beam identification RS)(也称为候选参考信号资源集合)。此外用于检测链路失败的参考信号还可以通过隐式方式指示，将指示PDCCH的TCI中关联的参考信号作为检测链路失败的参考信号，该参考信号是与PDCCH的DMRS满足QCL关系的参考信号，且为周期发送的参考信号。其中，beam failure detection RS set中的RS与下行物理控制信道PDCCH的解调参考信号满足QCL关系或者与PDCCH使用相同的TCI状态，当该集合中的部分或者所有参考信号的信道质量信息(如参考信号接收功率(reference signal receiving power，RSRP)，信道质量指示(channel quality indicator，CQI)，块差错率(block error ratio，BLER)，信号与干扰加噪声比(signal to Interference plus noise ratio，SINR)，信噪比(signal noise ratio，SNR)等)低于预定门限，则判定为通信链路故障。其中低于预定门限可以是连续W次低于预定门限或者一定时间段内W次低于预定门限。可选的，该预定门限可以和无线链路失败失步门限(radio link failure OOS(out of sync))相同。In order to detect and recover link failures, the network equipment needs to configure the terminal equipment with a set of reference signal resources for beam failure detection (e.g. beam detection, RS resource configuration or beam detection, RS or failure detection resources), and for recovering terminal equipment and A set of reference signal resources for a network device link (candidate, RS, list, candidate, RS, identification, resource, or failure, resource, or candidate, RS) (also referred to as a candidate reference signal resource set). In addition, the reference signal used to detect the link failure may also be indicated in an implicit manner. The reference signal associated with the TCI indicating the PDCCH is used as the reference signal for detecting the link failure. Signal, and is a reference signal sent periodically. Among them, the failure detection of the RS and the downlink physical control channel PDCCH demodulation reference signal in the set satisfy the QCL relationship or use the same TCI state as the PDCCH. Signal received power (reference signal power, RSRP), channel quality indicator (CQI), block error rate (BLER), signal to interference plus noise ratio (signal to interference plus noise ratio, SINR) If the signal-to-noise ratio (signal noise ratio, SNR, etc.) is lower than a predetermined threshold, it is determined that the communication link is faulty. The lower than the predetermined threshold may be the W consecutive lower than the predetermined threshold or the W lower than the predetermined threshold within a certain period of time. Optionally, the predetermined threshold may be the same as a radio link failure out-of-sync threshold (radio link failure OOS (out of sync)).

在本申请实施例中，通信失败还可以称为通信链路失败、通信链路故障、链路故障、链路失败、通信故障、波束失败等。该通信失败是指用于PDCCH的波束失败检测的参考信号的信号质量小于或者等于预设门限。在本申请实施例中，这些概念是相同的含义。通信链路故障后，终端设备需要从候选参考信号资源集合中选出信道质量信息(如RSRP、RSRQ、CQI等)高于预定门限的参考信号资源，用于恢复通信链路。In the embodiments of the present application, communication failure may also be referred to as communication link failure, communication link failure, link failure, link failure, communication failure, beam failure, and the like. The communication failure means that the signal quality of the reference signal used for beam failure detection of the PDCCH is less than or equal to a preset threshold. In the embodiments of the present application, these concepts have the same meaning. After the communication link fails, the terminal device needs to select a reference signal resource whose channel quality information (such as RSRP, RSRQ, CQI, etc.) is higher than a predetermined threshold from the candidate reference signal resource set, and is used to restore the communication link.

可选的，该预定门限可以由网络设备配置。这里，beam failure detection RS是用于终端设备检测网络设备的某一发射波束的信道质量，该发射波束是网络设备与该终端设备进行通信时所使用的波束。Optionally, the predetermined threshold may be configured by a network device. Here, beam detection is the channel quality used by a terminal device to detect a transmission beam of a network device, and the transmission beam is a beam used when the network device communicates with the terminal device.

Candidate beam identification RS用于终端设备在判断出网络设备的该发射波束发生通信链路故障后，用于发起链路重配的参考信号集合。Candidate identification The RS is a reference signal set used by a terminal device to initiate link reconfiguration after it determines that a communication link failure occurs in the transmission beam of a network device.

在本申请实施例中，通信失败也可以称为通信故障、链路失败、链路故障、波束失败、波束故障、通信链路失败、通信链路故障等。In the embodiments of the present application, communication failure may also be referred to as communication failure, link failure, link failure, beam failure, beam failure, communication link failure, communication link failure, and the like.

在本申请实施例中，通信失败恢复也可以称为恢复网络设备与终端设备通信，通信故障恢复、链路失败恢复、链路故障恢复、波束失败恢复、波束故障恢复通信链路失败恢复、通信链路故障恢复、链路重配等。In the embodiment of the present application, communication failure recovery may also be referred to as recovering communication between a network device and a terminal device, communication failure recovery, link failure recovery, link failure recovery, beam failure recovery, beam failure recovery, communication link failure recovery, communication Link failure recovery, link reconfiguration, etc.

在具体实现中，用于波束失败检测的参考信号资源集合以及用于恢复终端设备与网络设备链路的参考信号资源集合这两个集合的名称还可以有其他叫法，本申请对此不作具体限定。In specific implementation, the reference signal resource set used for beam failure detection and the reference signal resource set used to restore the link between the terminal device and the network device may have other names, and this application does not make specific reference to this. limited.

本申请实施例中，通信失败恢复请求信息又可以称为通信故障恢复请求信息、链路失败恢复请求信息、链路故障恢复请求信息、波束失败恢复请求信息、波束故障恢复请求信息、通信链路失败恢复请求信息、通信链路故障恢复请求信息、链路重配请求信息、重配请求信息等。In the embodiment of the present application, the communication failure recovery request information may also be referred to as communication failure recovery request information, link failure recovery request information, link failure recovery request information, beam failure recovery request information, beam failure recovery request information, and communication link. Failure recovery request information, communication link failure recovery request information, link reconfiguration request information, reconfiguration request information, and so on.

本申请实施例中，通信失败恢复响应信息又可以称为通信失败响应信息、波束失败恢复响应信息、波束失败响应信息、通信链路故障恢复响应信息、通信链路故障响应信息、通信链路失败恢复响应信息、通信链路失败响应信息、波束故障恢复响应信息、波束故障响应信息、链路重配响应信息、链路故障恢复响应信息、链路故障响应信息、链路失败恢复响应信息、链路失败响应信息、通信故障恢复响应信息、通信故障响应信息、重配响应信息等。In the embodiment of the present application, the communication failure recovery response information may also be referred to as communication failure response information, beam failure recovery response information, beam failure response information, communication link failure recovery response information, communication link failure response information, and communication link failure. Recovery response information, communication link failure response information, beam failure recovery response information, beam failure response information, link reconfiguration response information, link failure recovery response information, link failure response information, link failure recovery response information, chain Channel failure response information, communication failure recovery response information, communication failure response information, reconfiguration response information, etc.

本申请实施例中，可选地，通信失败恢复请求可以是指在用于承载通信失败恢复请求的资源上发送信号，通信失败恢复响应信息可以是指在用于发送通信失败恢复响应的控制资源集合和/或搜索空间集合上接收循环冗余校验(cyclic redundancy check，CRC)由小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)加扰的下行控制信息(downlink control information，DCI)，该通信失败恢复响应信息还可以由其他信息加扰，本申请实施例对此并不作限定。In the embodiment of the present application, optionally, the communication failure recovery request may refer to sending a signal on a resource for carrying a communication failure recovery request, and the communication failure recovery response information may refer to a control resource for sending a communication failure recovery response. Downlink control information (CCI) scrambled by a cyclic redundancy check (cyclic redundancy check, CRC) on a set and / or search space set is scrambled by a cell wireless network temporary network identifier (C-RNTI) ), The communication failure recovery response information may also be scrambled by other information, which is not limited in this embodiment of the present application.

应理解，本申请实施例中的通信失败、通信失败恢复、通信失败恢复请求信息和通信失败恢复响应信息的名称还可以有其他叫法，本申请对此不作具体限定。It should be understood that the names of the communication failure, communication failure recovery, communication failure recovery request information, and communication failure recovery response information in the embodiments of the present application may have other names, which are not specifically limited in this application.

图3示出了本申请实施例中通信失败恢复流程的示意性流程图，如图3所示，该通信失败恢复流程包括：FIG. 3 shows a schematic flowchart of a communication failure recovery process in an embodiment of the present application. As shown in FIG. 3, the communication failure recovery process includes:

S310，终端设备测量波束失败检测的参考信号资源集合(beam failure detection RS set)，确定该终端设备与网络设备之间的链路故障。S310: The terminal device measures a set of reference signal resources for detecting beam failure, and determines a link failure between the terminal device and the network device.

例如，当终端设备判断连续N次beam failure detection RS或者beam failure detection RS set中所有或部分参考信号的信道质量信息小于或等于第二预设门限时，该终端设备可以确定该终端设备与网络设备之间的链路发生故障。For example, when the terminal device judges N consecutive beam detection, RS or beam detection, the channel quality information of all or part of the reference signals in the RS set is less than or equal to a second preset threshold, the terminal device may determine the terminal device and the network device. The link between them failed.

应理解，本申请实施例中，该终端设备确定与网络设备之间的链路发生故障的方式并不限于以上举例，还可以由其他判断方式确定，本申请对此并不作任何限定。It should be understood that, in the embodiment of the present application, the manner in which the terminal device determines that the link between the terminal and the network device fails is not limited to the above examples, and may be determined by other judgment methods, which is not limited in this application.

S320，该终端设备根据候选参考信号集合(candidate beam identification RS)的信道质量信息，确定信道质量大于或者等于第一预设门限的参考信号(new identified beam)；这里的确定过程可以是测量所述候选参考信号集合的信道质量信息确定的。S320. The terminal device determines a reference signal with a channel quality greater than or equal to a first preset threshold (new identified beam) according to the channel quality information of the candidate reference signal set (RS); the determination process here may be measuring the The channel reference information of the candidate reference signal set is determined.

S330，该终端设备向网络设备发送链路失败恢复请求(BFRQ)，其中，该链路失败恢复请求信息关联S320中识别的信道质量大于或者等于该预设门限的参考信号(new identified beam)，该终端设备可以通过显示或者隐式的方式将new identified beam或者参考信号资源通知给该网络设备。S330. The terminal device sends a link failure recovery request (BFRQ) to the network device, where the link failure recovery request information is associated with a reference signal (new identified beam) whose channel quality identified in S320 is greater than or equal to the preset threshold. The terminal device may notify the network device of the new identity or reference signal resource in a display or implicit manner.

应理解，本申请实施例中，该终端设备可以向该网络设备发送BFRQ，并通过该网络设备恢复该终端设备与该网络设备之间的链路故障，还可以是该终端设备向另一个网络设备发送BFRQ，通过该另一个网络设备恢复该终端设备与该网络设备之间的链路故障。It should be understood that, in the embodiment of the present application, the terminal device may send a BFRQ to the network device, and recover the link failure between the terminal device and the network device through the network device, or the terminal device may send to another network. The device sends a BFRQ and recovers the link failure between the terminal device and the network device through the other network device.

可选地，该终端设备的媒体接入控制(media access control，MAC)层会维护一个链路失败恢复计时器(beam failure recovery timer)和链路失败恢复计数器(beam failure recovery counter)。该链路失败恢复计时器用于控制整个链路失败恢复的时间，该链路失败恢复计数器用于限制该终端设备发送链路失败恢复请求的次数，当链路失败恢复计数器达到最大值时，该终端设备认为链路失败恢复不成功，停止链路失败恢复过程。所述恢复计时器的恢复时间和所述恢复计数器的计数值可以是网络设备配置的，也可以是预设值。Optionally, the media access control (MAC) layer of the terminal device maintains a link failure recovery timer (beam failure recovery timer) and a link failure recovery counter (beam failure recovery counter). The link failure recovery timer is used to control the entire link failure recovery time. The link failure recovery counter is used to limit the number of times the terminal device sends a link failure recovery request. When the link failure recovery counter reaches the maximum value, the The terminal device considers the link failure recovery unsuccessful and stops the link failure recovery process. The recovery time of the recovery timer and the count value of the recovery counter may be configured by a network device, or may be preset values.

S340，网络设备向该终端设备发送链路失败恢复响应(BFRR)，该终端设备检测控制资源集合(CORESET)和搜索空间集合(search space set)，接收该BFRR。S340. The network device sends a link failure recovery response (BFRR) to the terminal device. The terminal device detects a control resource set (CORESET) and a search space set (search set) and receives the BFRR.

应理解，可选地，该CORESET和/或search space set是网络设备为该终端设备配置的专用的CORESET和search space set，用于在该终端设备发送链路失败请求后，网络设备发送对链路失败的响应信息的下行控制资源。It should be understood that, optionally, the CORESET and / or search space set is a dedicated CORESET and search space set configured by the network device for the terminal device, and is used to send the link device to the chain after the terminal device sends a link failure request. The downlink control resource of the response information of the channel failure.

还应理解，本申请实施例中，并不对链路失败恢复流程中S310和S320的时间先后顺序进行限定，可以是S310在S320之前，也可以是S320在S310之前，还可以是S310和S320同时进行。It should also be understood that, in this embodiment of the present application, the timing of S310 and S320 in the link failure recovery process is not limited. It can be S310 before S320, S320 before S310, or S310 and S320 at the same time. get on.

还应理解，图3所示的链路失败恢复流程还可以应用于图1所示的单载波场景下的链路恢复流程，也可以适用于图2所示的载波聚合场景下的链路恢复流程，当该流程适用于载波聚合场景下的链路恢复流程时，需要网络设备210和网络设备220给终端设备230配置用于传输链路失败恢复请求的周期性的上行资源，该上行资源可以是物理上行控制信道(physical uplink control channel，PUCCH)资源或者物理随机接入信道(physical random access channel，PRACH)资源。It should also be understood that the link failure recovery process shown in FIG. 3 can also be applied to the link recovery process in the single carrier scenario shown in FIG. 1, and can also be applied to the link recovery in the carrier aggregation scenario shown in FIG. 2. Process, when the process is applicable to a link recovery process in a carrier aggregation scenario, the network device 210 and the network device 220 are required to configure the terminal device 230 with a periodic uplink resource for transmitting a link failure recovery request, and the uplink resource may be It is a physical uplink control channel (physical uplink control channel (PUCCH)) resource or a physical random access channel (physical random access channel (PRACH) resource).

由于链路失败为突发事件，网络设备分配专用的周期性的上行资源开销比较大。本申请实施例的方案中通过复用或者打孔用于信道状态信息(channel state information，CSI)上报的PUCCH或者物理上行共享信道(physical uplink shared channel，PUSCH)发送链路失败恢复请求，可以有效节省资源开销。Because the link failure is an emergency, the network equipment allocates dedicated periodic uplink resource overhead. In the solution of the embodiment of the present application, a link failure recovery request is sent through a PUCCH or a physical uplink shared channel (PUSCH) for channel state information (CSI) reporting through multiplexing or puncturing, which can be effective. Save resources.

图4示出了本申请实施例的通信失败恢复的方法400的示意性流程图，如图4所示，该方法400包括：FIG. 4 shows a schematic flowchart of a communication failure recovery method 400 according to an embodiment of the present application. As shown in FIG. 4, the method 400 includes:

S410，该终端设备在第一上行资源，向该网络设备发送第一指示信息，该网络设备在该第一上行资源上，接收该终端设备发送的该第一指示信息，该第一指示信息用于指示该第一下行资源上的通信失败，该第一上行资源为用于承载信道状态信息CSI的资源；S410. The terminal device sends first instruction information to the network device on the first uplink resource, and the network device receives the first instruction information sent by the terminal device on the first uplink resource, and the first instruction information is used for Indicating that the communication on the first downlink resource fails, the first uplink resource is a resource for carrying channel state information CSI;

其中，该第一上行资源属于第一小区，该第一下行资源属于第二小区，该第一小区和该第二小区为不同的小区或者相同的小区；或者，该第一下行资源关联的空间相关参数与该第一上行资源关联的空间相关参数不同。The first uplink resource belongs to the first cell, the first downlink resource belongs to the second cell, and the first cell and the second cell are different cells or the same cell; or the first downlink resource is associated The spatially related parameters of are different from the spatially related parameters associated with the first uplink resource.

可选地，该终端设备在第一上行资源上向第一网络设备发送该第一指示信息，该通信失败为该终端设备和第二网络设备在该第二小区的通信失败。Optionally, the terminal device sends the first instruction information to the first network device on the first uplink resource, and the communication failure is a communication failure between the terminal device and the second network device in the second cell.

可选地，该第一上行资源可以包括时域资源、频域资源、空间资源和波束资源中的一种或者多种。Optionally, the first uplink resource may include one or more of time domain resources, frequency domain resources, space resources, and beam resources.

应理解，该第一上行资源属于该第一小区，该第一小区可以为该第一网络设备下的小区。It should be understood that the first uplink resource belongs to the first cell, and the first cell may be a cell under the first network device.

可选地，在该终端设备向该第一网络设备发送第一指示信息之前，该方法还包括：Optionally, before the terminal device sends the first indication information to the first network device, the method further includes:

S401，该终端设备确定在该第一下行资源上通信失败。S401. The terminal device determines that communication fails on the first downlink resource.

可选地，该终端设备确定该终端设备和第二网络设备之间的第二小区通信失败，该第一下行资源属于该第二小区。Optionally, the terminal device determines that the second cell communication between the terminal device and the second network device fails, and the first downlink resource belongs to the second cell.

可选地，该CSI信息包括参考信号资源索引(如信道状态信息参考信号资源指示(channel state information reference resource indication，CRI))、秩指示(rank indication，RI)、层指示(layer indication，LI)、预编码指示(precoding matrix indicator，PMI)和信道质量指示(CQI)中的一种或者多种。Optionally, the CSI information includes a reference signal resource index (such as channel state information reference signal resource indication (CRI)), rank indication (RI), and layer indication (LI) Or one or more of a precoding indicator (precoding matrix indicator, PMI) and a channel quality indicator (CQI).

应理解，该第一指示信息可以对应于图3中的BFRQ信息，该BFRQ信息用于请求恢复该终端设备与该第二网络设备之间的链路失败。It should be understood that the first indication information may correspond to the BFRQ information in FIG. 3, and the BFRQ information is used to request restoration of a link failure between the terminal device and the second network device.

具体地，该BFRQ信息可以用于恢复该终端设备与该第二网络设备之间在该第二小区的链路。应理解，所述BFRQ也可以是一条用于恢复该终端设备与该第二网络设备之间在该第二小区的链路的其它信息。所述BFRQ还可以是一个指示信息，该信息用于链路失败恢复。Specifically, the BFRQ information may be used to restore a link between the terminal device and the second network device in the second cell. It should be understood that the BFRQ may also be a piece of other information for restoring a link between the terminal device and the second network device in the second cell. The BFRQ may also be an indication information, which is used for link failure recovery.

可选地，该第一网络设备和该第二网络设备为相同的网络设备。Optionally, the first network device and the second network device are the same network device.

应理解，该第一下行资源上的通信失败可以理解为用于该第二网络设备的波束失败检测的参考信号的信道质量小于或者等于预设门限，或者满足其它条件。It should be understood that the communication failure on the first downlink resource may be understood as that the channel quality of the reference signal used for beam failure detection of the second network device is less than or equal to a preset threshold, or meets other conditions.

具体地，该第一下行资源上的通信失败为用于该第二网络设备在该第二小区的波束失败检测的参考信号的信道质量小于或者等于预设门限，或者满足其他条件。Specifically, the communication failure on the first downlink resource is that a channel quality of a reference signal used for beam failure detection of the second network device in the second cell is less than or equal to a preset threshold, or meets other conditions.

还应理解，该第一下行资源可以为该第二网络设备为该终端设备配置的下行资源，还可以为该第一网络设备为该终端设备配置的下行资源。It should also be understood that the first downlink resource may be a downlink resource configured by the second network device for the terminal device, or may be a downlink resource configured by the first network device for the terminal device.

具体地，该第一下行资源可以为该第二网络设备在该第二小区为该终端设备配置的下行资源，还可以为该第一网络设备在该第二小区为该终端设备配置的下行资源。Specifically, the first downlink resource may be a downlink resource configured by the second network device for the terminal device in the second cell, and may also be a downlink resource configured by the first network device for the terminal device in the second cell. Resources.

可选地，该第一网络设备可以为该终端设备的主网络设备，该第二网络设备可以为该终端设备的多个辅网络设备中的一个。Optionally, the first network device may be a primary network device of the terminal device, and the second network device may be one of a plurality of secondary network devices of the terminal device.

一个实施例中，该第一网络设备可以是主基站，该第二网络设备可以是辅基站；或者该第一网络设备可以是辅基站，该第二网络设备可以是主基站。In one embodiment, the first network device may be a primary base station, and the second network device may be a secondary base station; or the first network device may be a secondary base station, and the second network device may be a primary base station.

本申请实施例中，该第一网络设备可以为主小区/主服务小区(primary cell/primary serving cell，Pcell)所在的基站，辅助主小区(primary secondary cell，PScell)所在的基站，特殊小区(special cell，SPcell)所在的基站，或者可以是传输接收节点(transmission and reception point，TRP)，辅小区/辅服务小区(secondary cell/secondary serving cell，Scell)所在的基站，该第二网络设备可以为Scell所在的基站，或者可以是TRP。或者，该第一网络设备可以为TRP，Scell所在的基站，该第二网络设备可以为Pcell，PScell，SPcell，TRP，Scell所在的基站。In the embodiment of the present application, the first network device may be a base station where a primary cell / primary serving cell (Pcell) is located, a base station where a secondary primary cell (PScell) is located, and a special cell ( The base station where the special cell (SPcell) is located, or the base station where the transmission receiving node (transmission and reception point (TRP)) and the secondary cell / secondary service cell (secondary cell / secondary serving cell, Scell) are located. The second network device may It is the base station where the Scell is located, or it may be TRP. Alternatively, the first network device may be a base station where TRP and Scell are located, and the second network device may be a base station where Pcell, PScell, SPcell, TRP, and Scell are located.

本申请实施例中，该第一小区可以为Pcell，PScell，SPcell或者Scell，该第二小区可以为Scell；或者，该第一小区可以为Scell，该第二小区可以为Pcell，PScell，SPcell或者Scell。In the embodiment of the present application, the first cell may be Pcell, PScell, SPcell, or Scell, and the second cell may be Scell; or, the first cell may be Scell, and the second cell may be Pcell, PScell, SPcell, or Scell.

其中，有关Pcell，PScell，Scell和SPcell的解释如下：Among them, the explanation about Pcell, PScell, Scell and SPcell is as follows:

Pcell：CA场景中终端设备驻留的小区。一般情况下只有Pcell才有上行资源，如PUCCH信道。Pcell: The cell where the terminal device resides in the CA scenario. Generally, only the Pcell has uplink resources, such as the PUCCH channel.

PScell：主网络设备通过RRC连接信令配置给终端设备的在辅网络设备上的一个特殊辅小区。PScell: A special secondary cell on a secondary network device that is configured by the primary network device to the terminal device through RRC connection signaling.

Scell：通过RRC连接信令配置给终端设备的小区，工作在辅载波(SCC)上，可以为终端设备提供更多的无线资源。SCell可以只有下行，也可以上下行同时存在。Scell: A cell configured to a terminal device through RRC connection signaling, working on a secondary carrier (SCC), which can provide more wireless resources for the terminal device. The SCell can have only downlink, or both uplink and downlink can exist.

SPcell：对于DC场景，SPCell指主小区组(master cell group，MSG)的Pcell或者辅小区组(secondary cell group，SCG)的PScell；否则，如CA场景，SPcell指Pcell。SPcell: For the DC scenario, SPCell refers to the Pcell of the primary cell group (MSG) or PScell of the secondary cell group (SCG); otherwise, as in the CA scenario, SPcell refers to Pcell.

应理解，本申请实施例中的技术方案可以适用于主小区(Pcell)是高频或者低频，辅小区(Scell)是高频或者低频的情况，例如，当Pcell是低频，Scell是高频，此时由于Scell没有配置上行资源，Pcell是低频也没配置用于链路失败检测的PRACH资源或者PUCCH资源，因此可以使用Pcell的PUCCH/PUSCH for CSI reporting资源辅助Scell恢复链路。通常低频和高频是相对而言的，也可以以某一特定频率为分界，例如6GHz。It should be understood that the technical solutions in the embodiments of the present application may be applicable to a case where the primary cell (Pcell) is high frequency or low frequency, and the secondary cell (Scell) is high frequency or low frequency. For example, when Pcell is low frequency and Scell is high frequency, At this time, because the Scell is not configured with uplink resources, and the Pcell is low frequency and has not been configured with PRACH resources or PUCCH resources for link failure detection, the PUCCH / PUSCH for CSI reporting resources of the Pcell can be used to assist the Scell to recover the link. Generally speaking, low frequency and high frequency are relative, and a certain frequency may be used as a boundary, for example, 6 GHz.

一个实施例中，所述终端设备在Pcell上的第一上行资源上发送第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败，所述第一上行资源为用于承载使用Pcell进行信息传输的CSI资源，其中，所述第一下行资源为用于承载使用Scell进行信息传输的CSI资源。应理解，所述Pcell和所述Scell也可以是同一基站的不同的载波，例如CC1和CC2。In one embodiment, the terminal device sends first indication information on a first uplink resource on the Pcell, where the first indication information is used to indicate that communication on the first downlink resource has failed, and the first uplink resource is The CSI resource is used to carry information transmission using a Pcell, and the first downlink resource is a CSI resource used to carry information transmission using a Scell. It should be understood that the Pcell and the Scell may also be different carriers of the same base station, such as CC1 and CC2.

一个实施例中，本申请实施例的技术方案可以应用于载波聚合(carrier aggregation，CA)场景下的一个小区辅助另一个小区或者多个小区恢复链路。或者是DC场景下，一个小区组内的一个小区辅助另一个小区或者多个小区恢复链路。In one embodiment, the technical solution of the embodiment of the present application may be applied to a cell aggregation (CA) scenario in which a cell assists another cell or multiple cells to restore a link. Or in the DC scenario, a cell in a cell group assists another cell or multiple cells to restore the link.

本申请实施例中，“一个小区”可以和“另一个小区”属于相同的小区组，或者，属于不同的小区组，不同小区组主要描述DC场景下，小区组1的一个小区可以辅助小区组2的另一个小区恢复链路。In the embodiment of the present application, “a cell” may belong to the same cell group as “another cell”, or may belong to different cell groups. Different cell groups mainly describe a DC scenario. A cell in cell group 1 may assist the cell group. The other cell of 2 resumes the link.

可选地，MCG中的小区辅助SCG中的小区恢复链路。Optionally, the cell in the MCG assists the cell in the SCG to recover the link.

可选地，SCG中的小区辅助MCG中的小区恢复链路。Optionally, the cell in the SCG assists the cell in the MCG to recover the link.

还应理解，本申请中，“小区”可以理解为“服务小区”、“载波”。It should also be understood that in this application, "cell" can be understood as "serving cell" and "carrier".

可选地，小区包括下行载波、上行(uplink,UL)载波、上行补充(supplementary uplink，SUL)载波中的至少一个。具体地，小区可以包括下行载波、上行载波；或者小区可以包括下行载波、上行补充载波；或者小区包括下行载波、上行载波、上行补充载波。Optionally, the cell includes at least one of a downlink carrier, an uplink (UL) carrier, and an uplink supplemental (supplementary uplink) (SUL) carrier. Specifically, the cell may include a downlink carrier and an uplink carrier; or the cell may include a downlink carrier and an uplink supplementary carrier; or the cell includes a downlink carrier, an uplink carrier, and an uplink supplementary carrier.

可选地，上行补充载波的载频低于上行载波，用以提高上行覆盖。Optionally, the carrier frequency of the uplink supplementary carrier is lower than the uplink carrier to improve uplink coverage.

可选地，一般情况下，FDD***中，上行载波与下行载波的载频不同；TDD***中，上行载波与下行载波的载频相同。Optionally, under normal circumstances, the carrier frequencies of the uplink carrier and the downlink carrier are different in the FDD system; in the TDD system, the carrier frequencies of the uplink carrier and the downlink carrier are the same.

还应理解，本申请中，上行资源在上行载波上，上行资源包括该第一上行资源和第二上行资源(方法500中涉及)；下行资源在下行载波上，下行资源包括该第一下行资源、该第二下行资源(方法500中涉及)和该第三下行资源(方法500中涉及)。It should also be understood that in this application, the uplink resource is on the uplink carrier, and the uplink resource includes the first uplink resource and the second uplink resource (involved in method 500); the downlink resource is on the downlink carrier, and the downlink resource includes the first downlink Resources, the second downlink resource (referred to in method 500), and the third downlink resource (referred to in method 500).

还应理解，本申请中，上行载波可以是正常的上行载波，还可以是补充上行(supplementary uplink，SUL)载波。It should also be understood that, in this application, the uplink carrier may be a normal uplink carrier or a supplementary uplink (supplementary uplink) (SUL) carrier.

在一种可选地方式中，在本申请实施例中，若第一小区包括多个上行载波，如第一小区的第一上行载波，第一小区的第二上行载波，终端设备可以在第一小区的多个上行子载波中子载波间隔最小的上行载波上发送第一指示信息和/或第二指示信息。如第一小区的第一上行载波的子载波间隔小于第一小区的第二上行载波的子载波间隔，那么终端设备在第一小区的第一上行载波上发送第一指示信息和/或第二指示信息。若第三小区包括多个上行载波，如第三小区的第一上行载波，第三小区的第二上行载波，终端设备可以在第三小区的多个上行子载波中子载波间隔最小的上行载波上发送第一指示信息。如第三小区的第一上行载波的子载波间隔大于第三小区的第二上行载波的子载波间隔，那么终端设备在第三小区的第二上行载波上发送第一指示信息。第一上行资源可以为在第一小区的第一上行载波上的资源，第二上行资源(方法500中涉及)可以为在第三小区的第二上行载波的资源，第一小区的第一上行载波或第二小区的第二上行载波可以是子载波间隔最小的载波，这样，终端设备就可以在子载波间隔最小的载波上发送第一指示信息和/或第二指示信息，从而可以提高发送第一指示信息成功的概率，这样可以提高链路失败恢复成功的概率。更进一步地，终端设备可以在载波集合中将子载波间隔最小的载波确定为发送第一指示信息和/或第二指示信息的上行载波，载波集合包括多个载波。在一种可能的实现中，载波集合可以是网络设备配置给终端设备的上行载波组成的集合；在另一种可能的实现中，载波集合可以是网络设备配置给终端设备的主小区和/或辅助主小区的上行载波组成的集合。In an optional manner, in the embodiment of the present application, if the first cell includes multiple uplink carriers, such as the first uplink carrier of the first cell and the second uplink carrier of the first cell, the terminal device may The first indication information and / or the second indication information is sent on an uplink carrier with the smallest subcarrier interval among multiple uplink subcarriers in a cell. If the subcarrier interval of the first uplink carrier of the first cell is smaller than the subcarrier interval of the second uplink carrier of the first cell, the terminal device sends the first indication information and / or the second carrier on the first uplink carrier of the first cell. Instructions. If the third cell includes multiple uplink carriers, such as the first uplink carrier of the third cell, and the second uplink carrier of the third cell, the terminal device may use the uplink carrier with the smallest subcarrier interval among the multiple uplink subcarriers in the third cell. The first instruction information is sent on. If the subcarrier interval of the first uplink carrier of the third cell is greater than the subcarrier interval of the second uplink carrier of the third cell, the terminal device sends the first indication information on the second uplink carrier of the third cell. The first uplink resource may be a resource on a first uplink carrier of a first cell, and the second uplink resource (involved in method 500) may be a resource on a second uplink carrier of a third cell, and the first uplink of the first cell The carrier or the second uplink carrier of the second cell may be the carrier with the smallest subcarrier interval. In this way, the terminal device can send the first instruction information and / or the second instruction information on the carrier with the smallest subcarrier interval. The first indicates the probability of success of the information, which can increase the probability of success of link failure recovery. Furthermore, the terminal device may determine the carrier with the smallest subcarrier interval in the carrier set as the uplink carrier for sending the first indication information and / or the second indication information, and the carrier set includes multiple carriers. In one possible implementation, the carrier set may be a set of uplink carriers configured by the network device to the terminal device; in another possible implementation, the carrier set may be a primary cell and / or the network device configured to the terminal device A set of uplink carriers of the secondary primary cell.

需要说明的是，上行载波可以替换为上行信道和/或上行信号。其中，可选地，上行信道包括以下信道中的一种或多种：PUSCH,PUCCH,PRACH；可选地，上行信号包括以下信号中的一种或多种：SRS,CSI-RS,DMRS。It should be noted that the uplink carrier may be replaced with an uplink channel and / or an uplink signal. Wherein, optionally, the uplink channel includes one or more of the following channels: PUSCH, PUCCH, PRACH; optionally, the uplink signal includes one or more of the following signals: SRS, CSI-RS, and DMRS.

一个实施例中，空间相关参数不同主要描述在多点协作传输(coordinated multipoint transmission/reception，CoMP)场景下，一个TRP辅助另一个TRP恢复链路。或者在单站的非互易性场景下，上行资源可用，下行资源不可用，通过上行链路辅助恢复下行链路。本申请实施例中可以通过空间相关参数体现单站或者多站场景，下行资源的空间相关参数可以对应的是TCI或者是QCL信息(其中包括一个或者多个参考信号)，上行资源的空间相关参数可以对应的是spatial relation(其中包括一个或者多个参考信号)。空间相关参数等价于空间滤波器(spatial dimain transmission/receive filter)。可选地，空间滤波器一般包括空间发送滤波器，和/或空间接收滤波器。该空间滤波器还可以称之为空域发送滤波器，空域接收滤波器，空间传输滤波器，空域传输滤波器等。其中CoMP包括非相干联合发送(non coherent joint transmission，NCJT)、相干联合发送(coherent joint transmission，CJT)、联合发送(joint transmission，JT)等。In one embodiment, the difference in spatial related parameters is mainly described in a coordinated multipoint transmission / reception (CoMP) scenario, where one TRP assists another TRP to restore a link. Or in a non-reciprocity scenario of a single station, uplink resources are available and downlink resources are unavailable, and the downlink is restored through the uplink assistance. In the embodiment of the present application, a single-site or multi-site scenario may be reflected by spatial related parameters. The spatial related parameters of downlink resources may correspond to TCI or QCL information (including one or more reference signals), and the spatial related parameters of uplink resources. It can correspond to spatial relations (including one or more reference signals). Spatial correlation parameters are equivalent to spatial filters (transmission / receive filters). Optionally, the spatial filter generally includes a spatial transmitting filter and / or a spatial receiving filter. The spatial filter can also be called a spatial transmission filter, a spatial reception filter, a spatial transmission filter, a spatial transmission filter, and the like. CoMP includes non-coherent joint transmission (NCJT), coherent joint transmission (CJT), and joint transmission (JT).

本申请实施例中，不同的空间相关参数是指终端设备在上行资源上发送信息所使用的空间发送滤波器与在下行资源上接收信息所使用的空间接收滤波器不同。In the embodiments of the present application, different spatial related parameters refer to that a spatial transmission filter used by a terminal device to send information on an uplink resource is different from a spatial reception filter used to receive information on a downlink resource.

本申请实施例的技术方案可以适用于第一小区和第二小区属于同一网络设备的情况下，也可以适用于第一小区和第二小区属于不同的网络设备的情况下。The technical solution in the embodiment of the present application may be applicable to a case where the first cell and the second cell belong to the same network device, or may be applicable to a case where the first cell and the second cell belong to different network devices.

可选地，该第一网络设备和该第二网络设备为不同的网络设备。Optionally, the first network device and the second network device are different network devices.

具体而言，本申请实施例的方法400可以应用于双链接或者多点协作传输场景下，终端设备可以和一个主网络设备和多个辅网络设备相连，当多个辅网络设备中的某一个辅网络设备与该终端设备发生通信失败后，该终端设备可以向主网络设备发送该第一指示信息。Specifically, the method 400 in the embodiment of the present application may be applied to a dual-link or multi-point cooperative transmission scenario. A terminal device may be connected to a primary network device and multiple secondary network devices. When one of the multiple secondary network devices is After the secondary network device fails to communicate with the terminal device, the terminal device may send the first instruction information to the primary network device.

例如，当该终端设备和某一个辅网络设备之间在第二小区发生通信失败后，该终端设备可以使用属于主网络设备在第一小区的上行资源发送该第一指示信息。For example, when communication failure occurs between the terminal device and a secondary network device in the second cell, the terminal device may use the uplink resources belonging to the primary network device in the first cell to send the first indication information.

具体而言，本申请实施例的方法400还可以应用于载波聚合场景下，该第一小区和该第二小区可以为不同的小区，例如，当终端设备和第一网络设备之间在第二小区发生通信失败后，该终端设备可以使用属于该第一网络设备在第一小区的上行资源发送该第一指示信息。Specifically, the method 400 in the embodiment of the present application may also be applied in a carrier aggregation scenario. The first cell and the second cell may be different cells. For example, when a terminal device and a first network device are in a second After a communication failure occurs in the cell, the terminal device may use the uplink resources belonging to the first network device in the first cell to send the first indication information.

具体而言，本申请实施例的方法400也可以应用于单载波场景下，该第一小区和该第二小区可以为相同的小区，当该终端设备和网络设备之间在第一小区发生通信失败后，该终端设备可以使用属于该网络设备在该第一小区的上行资源发送该第一指示信息。Specifically, the method 400 in the embodiment of the present application may also be applied in a single carrier scenario. The first cell and the second cell may be the same cell. When the terminal device and the network device communicate in the first cell, After the failure, the terminal device may use the uplink resources belonging to the network device in the first cell to send the first indication information.

可选地，该第一下行资源为物理下行控制信道PDCCH资源。Optionally, the first downlink resource is a physical downlink control channel (PDCCH) resource.

可选地，该PDCCH由小区无线网络临时标识(cell radio network temporary identifier，C-RNTI)加扰。Optionally, the PDCCH is scrambled by a cell radio network temporary network identifier (C-RNTI).

可选地，该第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。Optionally, the first uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.

应理解，该第一下行资源上的通信失败也可以理解为该终端设备与该第二网络设备之间的链路失败或者链路故障。It should be understood that the communication failure on the first downlink resource may also be understood as a link failure or a link failure between the terminal device and the second network device.

还应理解，该第一下行资源上的通信失败还可以理解为该终端设备与该第二网络设备在该第二小区的链路失败或者链路故障。It should also be understood that the communication failure on the first downlink resource may also be understood as a link failure or link failure between the terminal device and the second network device in the second cell.

具体而言，该终端设备检测到该终端设备与该第二网络设备的链路故障后，可以在PUCCH/PUSCH资源上优先发送链路失败恢复请求信息，否则，若该终端设备没有检测到链路故障，则在PUCCH/PUSCH资源上发送正常的CSI相关信息。Specifically, after the terminal device detects a link failure between the terminal device and the second network device, it can preferentially send link failure recovery request information on the PUCCH / PUSCH resource. Otherwise, if the terminal device does not detect the link, If the channel fails, normal CSI related information is sent on the PUCCH / PUSCH resource.

可选地，该终端设备可以复用(reuse)或者打孔(punch)CSI中的特殊状态位或者最低状态位发送该第一指示信息。Optionally, the terminal device may reuse or punch a special status bit or a lowest status bit in the CSI to send the first indication information.

应理解，本申请实施例中“状态位”还可以有其他名称，例如，“状态值”、“索引值”、“指示位”、“值”等，本申请对此并不作具体限定。It should be understood that the “status bit” in the embodiment of the present application may also have other names, such as “status value”, “index value”, “indication bit”, “value”, etc., which is not specifically limited in this application.

可选地，该第一指示信息承载于信道质量指示CQI字域的状态位中。Optionally, the first indication information is carried in a status bit of a channel quality indication CQI word field.

可选地，该CQI字域为CSI反馈的第一个码字的CQI字域或者第二个码字的CQI字域。Optionally, the CQI word domain is the CQI word domain of the first codeword or the CQI word domain of the second codeword of the CSI feedback.

可选地，该第一码字的CQI和该第二码字的CQI可以联合编码。Optionally, the CQI of the first codeword and the CQI of the second codeword may be jointly encoded.

可选地，该第一码字的CQI在CSI反馈的part 1中，第二码字的CQI在CSI反馈的part 2中，part 1和part 2可以分别独立编码。Optionally, the CQI of the first codeword is in part 1 of the CSI feedback, the CQI of the second codeword is in part 2 of the CSI feedback, and part1 and part2 can be independently encoded.

具体而言，通过CQI字域中的特殊状态位或最低状态位区分该第一指示信息与CSI，更具体地，有以下两种方式：Specifically, the first indication information is distinguished from the CSI by a special status bit or a lowest status bit in a CQI word field. More specifically, there are two ways:

方式一method one

通过宽带CQI字域中或绝对CQI字域中的最低状态，区分该第一指示信息与正常的CSI信息上报。According to the lowest state in the wideband CQI word domain or the absolute CQI word domain, the first indication information is distinguished from the normal CSI information report.

应理解，本申请实施例中，宽带CQI字域可以等价于绝对CQI字域。It should be understood that, in the embodiments of the present application, the broadband CQI word domain may be equivalent to the absolute CQI word domain.

例如，当宽带CQI字域为最低状态位(二进制值0000，或十进制值0)时，表示该终端设备发送了该第一指示信息，或者表示该第一上行资源上承载的内容中包括该第一指示信息。For example, when the wideband CQI word field is the lowest status bit (binary value 0000, or decimal value 0), it indicates that the terminal device sent the first indication information, or that the content carried on the first uplink resource includes the first An instruction message.

又例如，当宽带CQI字域为非最低状态位(也即二进制表示时的非0000状态，十进制表示时的非0状态)时，表示该终端设备没有发送该第一指示信息，或者表示该第一上行资源上承载的是CSI。For another example, when the wideband CQI word field is a non-least significant bit (that is, a non-0000 state in binary representation and a non-zero state in decimal representation), it indicates that the terminal device has not sent the first indication information, or that the first An uplink resource carries CSI.

应理解，当宽带CQI字域用4比特传输时，该宽带CQI字域的最低状态位可以表示为0000，当宽带CQI字域用3比特传输时，该宽带CQI字域的最低状态位可以表示为000，例如，当宽带CQI字域为最低状态位为000时，表示该终端设备发送了该第一指示信息，或者表示该第一上行资源上承载的内容中包括该第一指示信息。也可以通过状态位的长度不同区分该第一指示信息与正常的CSI信息上报，或者通过其他的隐式或显式的方式上报。It should be understood that when the wideband CQI word field is transmitted with 4 bits, the lowest status bit of the wideband CQI word field can be expressed as 0000, and when the wideband CQI word field is transmitted with 3 bits, the lowest status bit of the wideband CQI word field can be expressed Is 000. For example, when the wideband CQI word field has the lowest status bit of 000, it indicates that the terminal device sent the first indication information, or that the content carried on the first uplink resource includes the first indication information. The first indication information may be distinguished from the normal CSI information by different lengths of the status bits, or may be reported by other implicit or explicit methods.

还应理解，本申请实施例中的宽带CQI字域的状态位还可以由其他数量的比特传输，本申请对此并不作任何限定。It should also be understood that the status bits of the wideband CQI word field in the embodiments of the present application may also be transmitted by other numbers of bits, which is not limited in this application.

表1示出了一种CQI的映射表。Table 1 shows a CQI mapping table.

表1 CQI的映射表Table 1.CQI mapping table

表2示出了CQI的另一映射表。Table 2 shows another mapping table for CQI.

表2 CQI的映射表Table 2 CQI mapping table

如表1和表2所示，当该终端设备确定在该第一下行资源上通信失败后，上报的CQI字域为0000，否则，该终端设备将CQI的测量结果(0001-1111)上报给该第一网络设备，在实际应用本申请中各种表格时，也可以仅采用表中的某些行，或结合表中的某些行以及采用其它映射关系，例如也可以采用其它状态位的值表示该终端设备发送了该第一指示信息。As shown in Tables 1 and 2, when the terminal device determines that the communication on the first downlink resource fails, the reported CQI word field is 0000; otherwise, the terminal device reports the measurement result (0001-1111) of the CQI. To the first network device, when the various tables in this application are actually applied, only certain rows in the table may be used, or certain rows in the table may be combined with other mapping relationships, for example, other status bits may also be used. The value of indicates that the terminal device sent the first indication information.

方式二Way two

通过宽带CQI字域中的状态与子带CQI字域的状态位结合的状态位，区分该第一指示信息与正常的CSI上报。The status information in the wideband CQI field and the status bit in the subband CQI field are used to distinguish the first indication information from the normal CSI report.

可选地，该子带CQI字域为子带差分CQI字域，该子带差分CQI字域用于上报每个子带CQI的相对带宽CQI的差分值。Optionally, the subband CQI word field is a subband differential CQI word field, and the subband differential CQI word field is used to report a differential value of a relative bandwidth CQI of each subband CQI.

可选地，当宽带CQI与子带CQI结合获得的CQI十进制索引是0或负数时，表示发送了该第一指示信息，或者还可以表示该第一上行资源上承载的内容中包括该第一指示信息。Optionally, when the CQI decimal index obtained by combining the broadband CQI and the subband CQI is 0 or a negative number, it indicates that the first indication information is sent, or it can also indicate that the content carried on the first uplink resource includes the first Instructions.

可选地，宽带CQI是最低状态位，子带CQI是较低状态位。Optionally, the wideband CQI is the lowest status bit, and the subband CQI is the lower status bit.

具体地，该宽带CQI字域的状态位为最低状态位为0000(二进制)或者0(十进制)，该子带CQI字域的较低状态位为00(二进制)或者0(十进制)，或者，该子带CQI字域的较低状态位为01(二进制)或者1(十进制)，或者，该子带CQI字域的较低状态位为10(二进制)或者2(十进制)。Specifically, the status bit of the broadband CQI word field is the lowest status bit is 0000 (binary) or 0 (decimal), and the lower status bit of the subband CQI word field is 00 (binary) or 0 (decimal), or The lower status bit of the subband CQI word field is 01 (binary) or 1 (decimal), or the lower status bit of the subband CQI word field is 10 (binary) or 2 (decimal).

可选地，宽带CQI是次低状态位，子带CQI是较低状态位。Optionally, the wideband CQI is the next lowest status bit, and the subband CQI is the lower status bit.

应理解，本申请实施例中的子带CQI字域的状态位还可以由其他数量的比特传输，本申请对此并不作任何限定。表3示出了子带CQI偏移水平表。It should be understood that the status bits of the subband CQI word field in the embodiments of the present application may also be transmitted by other numbers of bits, which is not limited in this application. Table 3 shows a subband CQI offset level table.

表3 子带差分CQI与偏移水平映射表Table 3.Subband differential CQI and offset level mapping table

例如：结合表1的CQI映射表和表3的子带差分CQI表。For example, the CQI mapping table of Table 1 and the subband differential CQI table of Table 3 are combined.

对于每一个子带索引，2比特的子带差分CQI定义如下:For each subband index, a 2-bit subband differential CQI is defined as follows:

Sub-band Offset level(s)＝wideband CQI index–sub-band CQI index(s)Sub-band Offset level (s) = wideband CQI index--sub-band CQI index (s)

最后子带获得的CQI索引为：The CQI index obtained in the last subband is:

sub-band CQI index(s)＝wideband CQI index–Sub-band Offset level(s)。sub-band CQI index (s) = wideband CQI index-Sub-band Offset level (s).

当该终端设备确定该第一下行资源上通信失败后，上报的宽带CQI字域为二进制0000(十进制0)，子带CQI字域为二进制00(十进制0)；或When the terminal device determines that the communication on the first downlink resource fails, the reported wideband CQI word field is binary 0000 (decimal 0), and the subband CQI word field is binary 00 (decimal 0); or

上报的宽带CQI字域为0000(十进制0)，子带差分CQI字域为01(十进制1)；或The reported wideband CQI field is 0000 (decimal 0) and the subband differential CQI field is 01 (decimal 1); or

上报的宽带CQI字域为0000(十进制0)，子带差分CQI字域为10(十进制2)；或The reported wideband CQI field is 0000 (decimal 0) and the subband differential CQI field is 10 (decimal 2); or

上报的宽带CQI字域为0001(十进制1)，子带差分CQI字域为01(十进制1)；或The reported wideband CQI field is 0001 (decimal 1) and the subband differential CQI field is 01 (decimal 1); or

上报的宽带CQI字域为0001(十进制1)，子带差分CQI字域为10(十进制2)。The reported wideband CQI word field is 0001 (decimal 1), and the subband differential CQI word field is 10 (decimal 2).

否则，该终端设备将CQI的测量结果上报给该第一网络设备。Otherwise, the terminal device reports the measurement result of the CQI to the first network device.

可选地，该第一指示信息承载于该信道状态信息中的填充比特中。Optionally, the first indication information is carried in a padding bit in the channel state information.

具体而言，通过填充比特(padding bits)区分该第一指示请求信息与CSI。Specifically, the first indication request information is distinguished from the CSI by padding bits.

可选地，该填充比特全为1，表示该终端设备发送了该第一指示信息或者表示该第一上行资源上承载的内容包括了该第一指示信息；该填充比特全为0或填充比特位不是全1，表示该终端设备没有发送该第一指示信息或者表示该第一上行资源上承载的是CSI。Optionally, the padding bits are all 1, indicating that the terminal device sent the first indication information or that the content carried on the first uplink resource includes the first indication information; the padding bits are all 0 or the padding bits The bit is not all 1, indicating that the terminal device has not sent the first indication information or that the first uplink resource is carrying CSI.

可选地，该填充比特全为0，表示该终端设备发送了该第一指示信息或者表示该第一上行资源上承载的内容包括了该第一指示信息；该填充比特全为1或填充比特不是全0，表示该终端设备没有发送该第一指示信息或者表示该第一上行资源上承载的是CSI。Optionally, the padding bits are all 0, indicating that the terminal device sent the first indication information or that the content carried on the first uplink resource includes the first indication information; the padding bits are all 1 or the padding bits. If it is not all 0s, it means that the terminal device has not sent the first indication information or that the first uplink resource is carrying CSI.

应理解，CSI上报时包括RI，CQI，PMI等信息。CQI和PMI的比特数随着RI的取值变化。为了降低盲检复杂度，现有技术中上报CSI时取固定比特数，若比特位不够则会在冗余状态位上补0使其达到固定比特数。It should be understood that the CSI report includes RI, CQI, PMI and other information. The number of CQI and PMI bits varies with the value of RI. In order to reduce the complexity of blind detection, in the prior art, a fixed number of bits is taken when reporting CSI. If the number of bits is insufficient, 0 is added to the redundant status bit to make it reach a fixed number of bits.

本申请实施例中，当该终端设备确定该第一下行资源上通信失败后，可以在上报的冗余状态位均补1，或者在上报的冗余状态位均补0，或按照其它预设规则补充。In the embodiment of the present application, when the terminal device determines that the communication on the first downlink resource has failed, it may add 1 to the reported redundant status bits or 0 to the reported redundant status bits, or according to other predictions. Let's add rules.

本申请实施例的通信失败恢复的方法，终端设备通过复用或者打孔用于传输信道状态信息中的填充比特发送第一指示信息，有助于节省网络设备的资源开销。In the method for recovering from a communication failure in the embodiment of the present application, the terminal device sends the first indication information by multiplexing or puncturing padding bits used to transmit channel state information, which helps to save resource overhead of the network device.

可选地，该第一指示信息承载于所述信道状态信息中的非零宽带幅度系数字域中。Optionally, the first indication information is carried in a non-zero wideband amplitude in the channel state information in a digital domain.

具体而言，通过非零宽带幅度系数(non-zero wideband amplitude coefficients)字域指示最高位或者最低位区分该第一指示信息与CSI。Specifically, a non-zero wideband amplitude coefficient field is used to indicate the highest bit or the least significant bit to distinguish the first indication information from the CSI.

应理解，该非零宽带幅度是type II CSI反馈的内容，用来指示PMI码本的线性合并幅度系数的非零个数。It should be understood that the non-zero wideband amplitude is the content of the type II CSI feedback, and is used to indicate the non-zero number of linearly combined amplitude coefficients of the PMI codebook.

对于type II CSI反馈(高精度码本)，会上报非零的宽带幅度系数。当用于线性合并的波束个数(number of beams)为2时，每个layer的非零宽带幅度有4个，其中有第一个幅度由于做了归一化，值为1不需要上报，因此可选的非零幅度个数(十进制)为{0，1，2}，比特数为2bit,那么有一个状态(二进制00或11)表示链路失败恢复请求。For type II CSI feedback (high-precision codebook), a non-zero wideband amplitude coefficient will be reported. When the number of beams used for linear merging is 2, each layer has 4 non-zero wideband amplitudes, of which the first amplitude is normalized. The value of 1 does not need to be reported. Therefore, the number of optional non-zero amplitudes (decimal) is {0, 1, 2}, and the number of bits is 2 bits. Then there is a state (binary 00 or 11) indicating a link failure recovery request.

例如，当终端设备确定在第一下行资源上通信失败后，上报的非零宽带幅度系数字域为00。否则上报的非零宽带幅度系数字域为01～11。For example, when the terminal device determines that the communication fails on the first downlink resource, the reported non-zero wideband amplitude is 00 in the digital domain. Otherwise, the reported non-zero wideband amplitude ranges from 01 to 11 in the digital domain.

又例如，当终端设备确定在第一下行资源上通信失败后，上报的非零宽带幅度系数字域为11。否则上报的非零宽带幅度系数字域为00～10。For another example, when the terminal device determines that the communication on the first downlink resource fails, the reported non-zero broadband amplitude is in the digital domain of 11. Otherwise, the reported non-zero wideband amplitude is in the digital domain from 00 to 10.

应理解，本申请实施例中的非零宽带幅度系数字域还可以由其他数量的比特传输，本申请对此并不作任何限定。It should be understood that the non-zero wideband amplitude system in the embodiments of the present application can also be transmitted by other numbers of bits, which is not limited in this application.

可选地，该方法还包括：Optionally, the method further includes:

该终端设备在该第一上行资源上，向该第一网络设备发送第二指示信息，该第一网络设备在该第一上行资源上，接收该终端设备发送的该第二指示信息，该第二指示信息包括该第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。The terminal device sends second instruction information to the first network device on the first uplink resource, and the first network device receives the second instruction information sent by the terminal device on the first uplink resource. The two indication information includes one of identification information of the second cell, information of a first reference signal with a channel quality greater than or equal to a first preset threshold, or information of a second reference signal with a channel quality less than or equal to a second preset threshold. Or more.

可选地，该第一参考信号和该第二参考信号为该第二小区上的参考信号。Optionally, the first reference signal and the second reference signal are reference signals on the second cell.

可选地，该第一参考信号为在下行链路(该终端设备和该第二网络设备之间的链路)上新识别的参考信号，该第一参考信号的信息包括该第一参考信号的资源索引和/或该第一参考信号的质量信息。Optionally, the first reference signal is a newly identified reference signal on a downlink (a link between the terminal device and the second network device), and information of the first reference signal includes the first reference signal And / or quality information of the first reference signal.

应理解，该第一参考信号可以对应于方法300中的new identified beam。It should be understood that the first reference signal may correspond to the new identified beam in method 300.

还应理解，该第一参考信号可以用于该第二网络设备恢复下行链路(该第二网络设备与该终端设备之间的链路)。It should also be understood that the first reference signal may be used by the second network device to restore a downlink (the link between the second network device and the terminal device).

还应理解，该下行链路还可以理解为该终端设备与该第二网络设备在该第二小区的链路。It should also be understood that the downlink may also be understood as a link between the terminal device and the second network device in the second cell.

可选地，该第二参考信号为检测下行链路(该终端设备和该第二网络设备之间的链路)失败的参考信号，或者该第二参考信号为对应于该第一下行资源关联的空间相关参数或者该空间相关参数中包含的参考信号，该第二参考信号的信息包括该第二参考信号的资源索引和/或该第二参考信号的质量信息。Optionally, the second reference signal is a reference signal that detects a failure in a downlink (a link between the terminal device and the second network device), or the second reference signal is a signal corresponding to the first downlink resource. The associated spatial correlation parameter or the reference signal contained in the spatial correlation parameter, and the information of the second reference signal includes a resource index of the second reference signal and / or quality information of the second reference signal.

应理解，该第二参考信号可以对应于方法300中的beam failure detection RS set中的一个或多个参考信号。It should be understood that the second reference signal may correspond to one or more reference signals in the beam detection detection RS set in the method 300.

还应理解，可选地，该第一参考信号和该第二参考信号为该第二小区的参考信号。It should also be understood that, optionally, the first reference signal and the second reference signal are reference signals of the second cell.

还应理解，该第一参考信号和该第二参考信号可以为下行参考信号。It should also be understood that the first reference signal and the second reference signal may be downlink reference signals.

例如，该第一参考信号和该第二参考信号为CSI RS，SSB，DMRS或者TRS等。For example, the first reference signal and the second reference signal are CSI, RSB, SSB, DMRS, or TRS.

本申请实施例中，“A属于第X小区”可以理解为“A是第X小区的参考信号或者资源”。In the embodiment of the present application, "A belongs to the Xth cell" can be understood as "A is a reference signal or resource of the Xth cell".

可选地，该第二指示信息承载于该CSI的状态位中。Optionally, the second indication information is carried in a status bit of the CSI.

进一步可选的，该第二指示信息承载于该CSI的最低优先级内容对应的字域中。Further optionally, the second indication information is carried in a field corresponding to the lowest priority content of the CSI.

可选地，该最低优先级内容为该终端设备上报该CSI的比特数超过最大资源分配时丢弃优先级最高或者传输优先级最低的内容。Optionally, the lowest priority content is content that is discarded with the highest priority or the lowest transmission priority when the number of bits of the CSI reported by the terminal device exceeds the maximum resource allocation.

可选地，该最低优先级的内容为CSI反馈的part 2，或者，该最低优先级的内容为CSI反馈的最后一个子带的内容或最后一个子带的part 2。Optionally, the content of the lowest priority is part 2 of the CSI feedback, or the content of the lowest priority is content of the last subband or part 2 of the last subband.

可选地，该最低优先级内容对应CSI上报ID最小或最大的内容。Optionally, the lowest priority content corresponds to the content with the smallest or largest ID reported by the CSI.

例如，表4示出了一种CSI反馈的part 2中按照优先级排序的内容。For example, Table 4 shows the content sorted by priority in part 2 of a CSI feedback.

表4 CSI反馈的part 2中按照优先级排序的内容Table 4 Contents sorted by priority in part 2 of CSI feedback

应理解，N _Rep指的是一个时间单元中的CSI上报的个数，CSI上报个数对应了关联的reportConfigID的个数。 It should be understood that N _Rep refers to the number of CSI reports in a time unit, and the number of CSI reports corresponds to the number of associated reportConfigIDs.

还应理解，对于Type I CSI反馈，其中，part 1包括RI(如果上报的话)、CRI(如果上报的话)个第一个码字的CQI，part 2包括PMI以及第二个码字的CQI(当RI＞4时)。It should also be understood that for Type CSI feedback, where part 1 includes RI (if reported), CRI (if reported) CQI of the first codeword, and part 2 includes PMI and the CQI of the second codeword ( (When RI> 4).

对于Type II CSI反馈，其中，part 1有固定的负载(playload size)，且包括RI、CQI 以及Type II CSI的每个layer的非零宽带幅度系数个数的指示信息(an indication of the number of non-zero wideband amplitude coefficients per layer for the Type II CSI)，part 2包括type II CSI的PMI信息，part 1和part 2是分别独立编码的。For Type II CSI feedback, where part 1 has a fixed load (playload), and includes RI, CQI, and the indication information of the number of non-zero wideband amplitude coefficients of each layer of Type II CSI (an indication of the number of non-zero wideband amplitude and efficiency (layer II, CSI), part 2 includes type II CSI PMI information, and part 1 and part 2 are independently encoded.

还应理解，表4中优先级从0至2N _Rep可以理解为丢弃优先级从低到高，或者，可以理解为传输优先级从高到低。 It should also be understood that the priority from 0 to 2N _{Rep in} Table 4 can be understood as the drop priority from low to high, or it can be understood as the transmission priority from high to low.

还应理解，该第二指示信息可以承载在该CSI的最低优先级内容对应的字域中，还可以承载在该CSI的较低优先级内容对应的字域中。It should also be understood that the second indication information may be carried in a field corresponding to the lowest priority content of the CSI, or may be carried in a field corresponding to the lower priority content of the CSI.

可选地，该方法还包括：该终端设备根据预定义规则，将CSI中的多个优先级内容对应的字域进行排序，确定第一优先级内容对应的字域；该终端设备将该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的一种或者多种承载于该第一优先级内容对应的字域中。Optionally, the method further includes: the terminal device sorts word fields corresponding to multiple priority contents in the CSI according to a predefined rule, and determines a word field corresponding to the first priority content; One or more of the identification information of the two cells, the information of the first reference signal, and the information of the second reference signal are carried in a field corresponding to the first priority content.

可选地，该方法还包括：该终端设备根据预定义规则，从该CSI中的第一优先级内容对应的字域和第二优先级内容对应的字域中，确定该第一优先级内容对应的字域；该终端设备将该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的一种或者多种承载于该第一优先级内容对应的字域中。Optionally, the method further includes: determining, by the terminal device, the first priority content from the word domain corresponding to the first priority content and the word domain corresponding to the second priority content in the CSI according to a predefined rule. Corresponding word domain; the terminal device bears one or more of the identification information of the second cell, the information of the first reference signal and the information of the second reference signal in the word domain corresponding to the first priority content .

可选地，该第二指示信息中的至少部分信息承载于该第一指示信息。Optionally, at least part of the information in the second indication information is carried in the first indication information.

应理解，该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的至少部分承载于该第一指示信息还可以理解为该终端设备可以将该第二小区的标识信息、第一参考信号的信息和第二参考信号的信息中的至少部分和该第一指示信息同时发送给该第一网络设备。It should be understood that at least part of the identification information of the second cell, the information of the first reference signal, and the information of the second reference signal is carried in the first indication information, and it can also be understood that the terminal device can identify the second cell. At least part of the information, the information of the first reference signal, and the information of the second reference signal and the first indication information are simultaneously sent to the first network device.

可选地，该第二指示信息与该第一指示信息承载于该CSI中不同的状态位中。Optionally, the second indication information and the first indication information are carried in different status bits in the CSI.

应理解，该终端设备也可以将该第一指示信息和该第二指示信息不同时发送给该第一网络设备。It should be understood that the terminal device may also send the first indication information and the second indication information to the first network device at the same time.

应理解，该第二指示信息承载于该CSI的低优先级内容对应的字域中还可以理解为复用或者打孔CSI的较低状态位，这样可以降低对CSI上报的影响。It should be understood that the second indication information carried in the field corresponding to the low-priority content of the CSI can also be understood as multiplexing or puncturing the lower status bits of the CSI, which can reduce the impact on CSI reporting.

应理解，方法400可以在激活态BWP上的非竞争的PRACH资源和/或竞争的PRACH资源没有配置时，使用上述资源恢复链路。It should be understood that the method 400 may use the above resources to recover the link when the non-competing PRACH resources and / or the competing PRACH resources on the active BWP are not configured.

本申请实施例的链路失败恢复的方法，通过打孔或者复用CSI的状态位发送链路失败恢复请求信息，有助于节省资源开销，此外，当辅小区没有配置上行资源时，可以及时有效地通过主小区辅助辅小区，实现辅小区的链路失败恢复。The method for link failure recovery in the embodiment of the present application sends link failure recovery request information through puncturing or multiplexing CSI status bits, which helps to save resource overhead. In addition, when the secondary cell is not configured with uplink resources, it can be timely The secondary cell is effectively assisted by the primary cell to realize link failure recovery of the secondary cell.

以上，结合图4详细得描述了通过复用或者打孔CSI的状态位发送第一指示信息的过程，下面结合图5描述本申请实施例的通信失败恢复的方法500。The process of sending the first indication information by multiplexing or puncturing the CSI status bits has been described in detail above with reference to FIG. 4. The method 500 for recovering communication failure according to the embodiment of the present application is described below with reference to FIG. 5.

本申请实施例的通信失败恢复的方法500可以应用在多载波聚合场景下，主小区可以辅助辅小区进行通信失败恢复，主小区和辅小区需要进行信息交互，在理想的backhaul场景下，虽然其交互时延较短但是交互时延可能并不固定；在非理想的backhaul场景下，其交互时延较长，在辅小区接收对在主小区发送的通信失败请求的响应信息时间比较难预测，终端设备不知何时接收该第二网络设备发送的通信失败响应信息，若终端设备接收通信失败响应信息起始时间过早，有可能会造成终端设备的功耗过大，或无法在有限时间(时间窗)内接收到通信失败响应信息而再次发起通信失败恢复请求，无法快速恢复链路甚至无法恢复链路，本申请实施例中的方法500主要用于解决终端设备无法成功接收通信失败恢复响应信息的问题。The method 500 for recovering from communication failure in the embodiment of the present application can be applied in a multi-carrier aggregation scenario. The primary cell can assist the secondary cell to recover from communication failures. The primary cell and the secondary cell need to perform information interaction. In an ideal backhaul scenario, although its The interaction delay is short but the interaction delay may not be fixed; in the non-ideal backhaul scenario, the interaction delay is long, and it is difficult to predict the response time of the secondary cell to the communication failure request sent in the primary cell. The terminal device does not know when to receive the communication failure response information sent by the second network device. If the terminal device receives the communication failure response information too early, it may cause the power consumption of the terminal device to be too large, or it may not be possible for a limited time ( After receiving the communication failure response information within the time window), the communication failure recovery request is initiated again, and the link cannot be quickly restored or even the link cannot be restored. The method 500 in the embodiment of the present application is mainly used to resolve that the terminal device cannot successfully receive the communication failure recovery response. Information issues.

图5示出了根据本申请实施例的通信失败恢复的方法500的示意性流程图，如图5所示，该方法500包括：FIG. 5 shows a schematic flowchart of a communication failure recovery method 500 according to an embodiment of the present application. As shown in FIG. 5, the method 500 includes:

S510，终端设备在第二上行资源上，向第一网络设备发送第一指示信息，该第一网络设备在该第二上行资源上，接收该终端设备发送的该第一指示信息，该第一指示信息用于指示该终端设备在第一下行资源上的通信失败；S510: The terminal device sends the first instruction information to the first network device on the second uplink resource, and the first network device receives the first instruction information sent by the terminal device on the second uplink resource, and the first The indication information is used to indicate that the terminal device fails to communicate on the first downlink resource;

S520，该终端设备在发送该第一指示信息后的第n个时间单元，和/或，第m个用于发送下行控制信道的时频资源位置开始的时间窗口内，检测通信失败响应信息；S520. The terminal device detects communication failure response information in the n-th time unit after the first indication information is sent, and / or, the m-th time window from which the time-frequency resource location of the downlink control channel starts;

其中，n为大于或者等于0的整数，m为大于或者等于0的整数，该第二上行资源属于第三小区，该第二下行资源属于第四小区，该第三小区和该第四小区为不同的小区或者相同的小区；或者，Wherein n is an integer greater than or equal to 0, m is an integer greater than or equal to 0, the second uplink resource belongs to the third cell, the second downlink resource belongs to the fourth cell, and the third cell and the fourth cell are Different cells or the same cell; or,

该第二上行资源关联的空间相关参数与该第二下行资源关联的空间相关参数不同。The spatial correlation parameter associated with the second uplink resource is different from the spatial correlation parameter associated with the second downlink resource.

应理解，本申请实施例中，该终端设备检测通信失败响应信息还可以理解为该终端设备接收该通信失败响应信息。It should be understood that, in the embodiment of the present application, the terminal device detecting the communication failure response information may also be understood as the terminal device receiving the communication failure response information.

还应理解，本申请实施例中，该第三小区可以为Pcell，PScell，SPcell或者Scell，该第四小区可以为Scell；或者，该第三小区可以为Scell，该第四小区可以为Pcell，PScell，SPcell或者Scell。It should also be understood that in the embodiments of the present application, the third cell may be a Pcell, PScell, SPcell or Scell, and the fourth cell may be Scell; or, the third cell may be Scell, and the fourth cell may be Pcell, PScell, SPcell or Scell.

可选地，该时频资源位置可以为该第四小区的用于发送下行控制信道的时频资源位置。Optionally, the time-frequency resource location may be a time-frequency resource location of the fourth cell for sending a downlink control channel.

可选地，该终端设备接收第二网络设备发送的该通信失败响应信息。Optionally, the terminal device receives the communication failure response information sent by the second network device.

可选地，当该第三小区属于该第一网络设备，该第四小区都属于第二网络设备，该终端设备接收该第二网络设备在该第四小区发送的该通信失败响应信息。Optionally, when the third cell belongs to the first network device and the fourth cell belongs to the second network device, the terminal device receives the communication failure response information sent by the second network device in the fourth cell.

可选地，该第一网络设备和该第二网络设备为相同的网络设备，或者，该第一网络设备和该第二网络设备为不同的网络设备。Optionally, the first network device and the second network device are the same network device, or the first network device and the second network device are different network devices.

可选地，该第一下行资源和该第二下行资源都属于该第四小区。Optionally, both the first downlink resource and the second downlink resource belong to the fourth cell.

应理解，该第一指示信息还可以为链路失败恢复请求(beam failure recovery request，BFRQ)信息，该BFRQ信息用于请求恢复该终端设备与该第二网络设备之间的链路失败。It should be understood that the first indication information may also be link failure recovery request (BFRQ) information, and the BFRQ information is used to request recovery of a link failure between the terminal device and the second network device.

还应理解，该通信失败响应信息可以为链路失败恢复响应(beam failure recovery response，BFRR)信息，该BFRR信息为该第二网络设备发送的对该BFRQ信息的响应。It should also be understood that the communication failure response information may be link failure recovery response (BFRR) information, and the BFRR information is a response to the BFRQ information sent by the second network device.

还应理解，本申请实施例中的时间单元可以是LTE或者5G NR***中定义的一个或多个无线帧，一个或多个子帧，一个或多个时隙，一个或多个微时隙(mini slot)，一个或多个正交频分复用(orthogonal frequency division multiplexing，OFDM)符号，也可以是多个帧或子帧构成的时间窗口，例如***信息(system information，SI)窗口。It should also be understood that the time unit in the embodiments of the present application may be one or more radio frames, one or more subframes, one or more time slots, and one or more micro time slots (in the LTE or 5G NR system). mini slot, one or more orthogonal frequency division multiplexing (OFDM) symbols, or a time window composed of multiple frames or sub-frames, such as a system information (SI) window.

可选地，该终端设备接收该第四小区上的该通信失败响应信息。Optionally, the terminal device receives the communication failure response information on the fourth cell.

可选地，该终端设备在第一时频资源上接收该通信失败响应信息。Optionally, the terminal device receives the communication failure response information on the first time-frequency resource.

例如，该n＝0时，该终端设备可以在发送该第一指示信息的当前时隙(或者当前子帧等)开始的时间窗内接收该通信失败响应信息。For example, when n = 0, the terminal device may receive the communication failure response information within a time window starting from a current time slot (or a current subframe, etc.) at which the first indication information is transmitted.

又例如，n＝4时，该终端设备可以在发送该第一指示信息后的4个时隙(或者子帧等) 开始的时间窗内接收该通信失败响应信息。For another example, when n = 4, the terminal device may receive the communication failure response information within a time window starting in 4 time slots (or subframes, etc.) after sending the first indication information.

再例如，m＝1，该终端设备可以在发送该第一指示信息后的第一个用于发送下行控制信道的时频资源位置开始的时间窗口内接收该通信失败响应信息。For another example, m = 1, the terminal device may receive the communication failure response information within a time window after the first time-frequency resource location for sending the downlink control channel after sending the first indication information.

可选地，该终端设备接收通信失败响应信息，包括：该终端设备在指定的下行资源上，接收该第二网络设备发送的通信失败响应信息。Optionally, the receiving, by the terminal device, communication failure response information includes that the terminal device receives the communication failure response information sent by the second network device on a specified downlink resource.

可选地，该终端设备接收通信失败响应信息，包括：该终端设备在指定的下行资源上，接收该第二网络设备在该第四小区上的通信失败响应信息。Optionally, the receiving, by the terminal device, communication failure response information includes that, on the specified downlink resource, the terminal device receives the communication failure response information of the second network device on the fourth cell.

应理解，该第一网络设备可以和该第二网络设备为相同的网络设备，该第三小区和该第四小区所在的网络设备均为该第一网络设备；或者，该第一网络设备和该第二网络设备为不同的网络设备，该第三小区所在的网络设备为该第一网络设备，该第四小区所在的网络设备为该第二网络设备。It should be understood that the first network device may be the same network device as the second network device, and the network devices in which the third cell and the fourth cell are located are the first network device; or, the first network device and The second network device is a different network device, the network device where the third cell is located is the first network device, and the network device where the fourth cell is located is the second network device.

可选地，该终端设备在第二上行资源上，向该第一网络设备发送该第一指示信息。Optionally, the terminal device sends the first indication information to the first network device on the second uplink resource.

应理解，该第二上行资源可以与方法400中的第一上行资源不同，也可以与该第一上行资源相同，本申请实施例对此并不作任何限定。It should be understood that the second uplink resource may be different from the first uplink resource in the method 400, or may be the same as the first uplink resource, which is not limited in this embodiment of the present application.

可选地，该第二下行资源为物理下行控制信道PDCCH资源。Optionally, the second downlink resource is a physical downlink control channel (PDCCH) resource.

可选地，该第二上行资源为物理随机接入信道PRACH资源。Optionally, the second uplink resource is a physical random access channel PRACH resource.

可选地，该第二上行资源为该第一网络设备和该终端设备之间用于传输信道状态信息CSI的资源。Optionally, the second uplink resource is a resource for transmitting channel state information CSI between the first network device and the terminal device.

可选地，该第二上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。Optionally, the second uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.

应理解，该第一指示信息可以复用或者打孔CSI的某些状态位中，具体的复用或打孔方式可以参考上述方法400，为了简洁，在此不加赘述。It should be understood that the first indication information may be multiplexed or punctured in some status bits of the CSI. For a specific multiplexing or puncturing method, refer to the foregoing method 400. For brevity, details are not described herein.

可选地，该方法500还包括：Optionally, the method 500 further includes:

该终端设备根据该第三小区和/或第四小区的***参数，确定该n或者该m。The terminal device determines the n or the m according to the system parameters of the third cell and / or the fourth cell.

可选地，该***参数(numerology)包括子载波间隔(subcarrier spacing，SCS)和/或循环前缀(cyclic prefix，CP)。Optionally, the system parameters (numerology) include subcarrier spacing (SCS) and / or cyclic prefix (CP).

应理解，本申请实施例中，可选地，一个时间单元的长度是由子载波间隔和循环前缀共同决定的。It should be understood that, in the embodiments of the present application, optionally, the length of a time unit is jointly determined by a subcarrier interval and a cyclic prefix.

可选地，该终端设备根据该第三小区和/或第四小区的子载波间隔，确定该n或者该m。Optionally, the terminal device determines the n or the m according to the subcarrier interval of the third cell and / or the fourth cell.

可选地，该第三小区和/或该第四小区的子载波间隔可以为15KHz，30KHz，60KHz，120KHz，240KHz。Optionally, the subcarrier interval of the third cell and / or the fourth cell may be 15KHz, 30KHz, 60KHz, 120KHz, 240KHz.

可选地，该第三小区的子载波间隔为上行载波的子载波间隔或者下行载波的子载波间隔。Optionally, the subcarrier interval of the third cell is a subcarrier interval of an uplink carrier or a subcarrier interval of a downlink carrier.

可选地，该第四小区的子载波间隔为下行载波的子载波间隔。Optionally, the subcarrier interval of the fourth cell is a subcarrier interval of a downlink carrier.

可选地，该终端设备根据该第三小区的子载波间隔，确定该n或者该m。Optionally, the terminal device determines the n or the m according to the subcarrier interval of the third cell.

例如，该第三小区的子载波间隔为60KHz，那么其中n个时间单元的长度可以为该第三小区的下行的4个时隙(slot)。For example, if the subcarrier interval of the third cell is 60 KHz, then the length of the n time units may be 4 downlink slots of the third cell.

又例如，该第三小区的子载波间隔为120KHz，那么其中n个时间单元的长度还可以为该第三小区的下行的8个时隙(slot)。As another example, if the subcarrier interval of the third cell is 120KHz, then the length of the n time units may also be 8 downlink slots of the third cell.

可选地，该终端设备根据该第四小区的子载波间隔，确定该n或者该m。Optionally, the terminal device determines the n or the m according to the subcarrier interval of the fourth cell.

例如，该第四小区的子载波间隔为60KHz，那么其中n个时间单元的长度可以为该第四小区的下行的4个时隙(slot)。For example, if the subcarrier interval of the fourth cell is 60KHz, then the length of the n time units may be 4 downlink slots of the fourth cell.

又例如，该第四小区的子载波间隔为120KHz，那么其中n个时间单元的长度还可以为该第四小区的下行的8个时隙(slot)。For another example, the subcarrier interval of the fourth cell is 120KHz, and then the length of the n time units may also be 8 downlink slots of the fourth cell.

可选地，该终端设备根据该第三小区和第四小区的子载波间隔，确定该n或者该m。Optionally, the terminal device determines the n or the m according to the subcarrier interval of the third cell and the fourth cell.

可选地，终端设备根据第三小区和第四小区的子载波间隔的最小值，确定该n或者m。例如，第三小区的子载波间隔为60KHz，第四小区的子载波间隔为120KHz，则终端设备确定的n为子载波间隔为60KHz时的时间单元。可选地，终端设备根据第三小区和第四小区的子载波间隔的最大值，确定该n或者m。例如，第三小区的子载波间隔为60KHz，第四小区的子载波间隔为120KHz，则终端设备确定的n为子载波间隔为120KHz时的时间单元。Optionally, the terminal device determines the n or m according to the minimum value of the subcarrier interval between the third cell and the fourth cell. For example, if the subcarrier interval of the third cell is 60KHz and the subcarrier interval of the fourth cell is 120KHz, n determined by the terminal device is a time unit when the subcarrier interval is 60KHz. Optionally, the terminal device determines the n or m according to the maximum value of the subcarrier interval between the third cell and the fourth cell. For example, if the subcarrier interval of the third cell is 60KHz and the subcarrier interval of the fourth cell is 120KHz, n determined by the terminal device is a time unit when the subcarrier interval is 120KHz.

可选地，终端设备可以根据第三小区的上行载波的子载波间隔与第四小区的下行子载波间隔的最小值确定n或m；例如第三小区的上行子载波间隔为60KHz，第四小区的下行子载波间隔为120KHz，则终端设备确定的n为子载波间隔为60KHz时的n个时间单元。可选地，终端设备可以根据第三小区的上行载波的子载波间隔与第四小区的下行子载波间隔的最大值确定n或m；例如第三小区的上行子载波间隔为60KHz，第四小区的下行子载波间隔为120KHz，则终端设备确定的n为子载波间隔为120KHz时的n个时间单元。Optionally, the terminal device may determine n or m according to the minimum value of the subcarrier interval of the uplink carrier of the third cell and the minimum value of the downlink subcarrier interval of the fourth cell; for example, the uplink subcarrier interval of the third cell is 60KHz, and the fourth cell The downlink subcarrier interval is 120KHz, then n determined by the terminal device is n time units when the subcarrier interval is 60KHz. Optionally, the terminal device may determine n or m according to the maximum value of the subcarrier interval of the uplink carrier of the third cell and the maximum value of the downlink subcarrier interval of the fourth cell; The downlink subcarrier interval is 120KHz, and n determined by the terminal device is n time units when the subcarrier interval is 120KHz.

可选地，终端设备可以根据第三小区的下行载波的子载波间隔与第四小区的下行子载波间隔的最小值确定n或m；例如第三小区的下行子载波间隔为60KHz，第四小区的下行子载波间隔为120KHz，则终端设备确定的n为子载波间隔为60KHz时的n个时间单元。可选地，终端设备可以根据第三小区的下行载波的子载波间隔与第四小区的下行子载波间隔的最大值确定n或m；例如第三小区的下行子载波间隔为60KHz，第四小区的下行子载波间隔为120KHz，则终端设备确定的n为子载波间隔为120KHz时的n个时间单元。Optionally, the terminal device may determine n or m according to the minimum value of the subcarrier interval of the downlink carrier of the third cell and the downlink subcarrier interval of the fourth cell; for example, the downlink subcarrier interval of the third cell is 60KHz, and the fourth cell The downlink subcarrier interval is 120KHz, then n determined by the terminal device is n time units when the subcarrier interval is 60KHz. Optionally, the terminal device may determine n or m according to the maximum value of the subcarrier interval of the downlink carrier of the third cell and the maximum value of the downlink subcarrier interval of the fourth cell; for example, the downlink subcarrier interval of the third cell is 60KHz, and the fourth cell The downlink subcarrier interval is 120KHz, and n determined by the terminal device is n time units when the subcarrier interval is 120KHz.

可选地，终端设备可以根据第一上行资源的子载波间隔与第二下行资源的子载波间隔的最小值确定n或m；例如第一上行资源的子载波间隔为60KHz，第二下行资源的子载波间隔为120KHz，则终端设备确定的n为子载波间隔为60KHz时的n个时间单元。可选地，终端设备可以根据第一上行资源的子载波间隔与第二下行资源的子载波间隔的最大值确定n或m；例如第一上行资源的子载波间隔为60KHz，第二下行资源的子载波间隔为120KHz，则终端设备确定的n为子载波间隔为120KHz时的n个时间单元。这里需要说明的是，第一上行资源可以为在第三小区的上行载波上的资源，第二下行资源可以为在第四小区的下行载波上的资源。Optionally, the terminal device may determine n or m according to the minimum value of the subcarrier interval of the first uplink resource and the subcarrier interval of the second downlink resource; for example, the subcarrier interval of the first uplink resource is 60KHz, and the The subcarrier interval is 120KHz, then n determined by the terminal device is n time units when the subcarrier interval is 60KHz. Optionally, the terminal device may determine n or m according to the maximum value of the subcarrier interval of the first uplink resource and the subcarrier interval of the second downlink resource; for example, the subcarrier interval of the first uplink resource is 60KHz, and the The subcarrier interval is 120KHz, then n determined by the terminal device is n time units when the subcarrier interval is 120KHz. It should be noted here that the first uplink resource may be a resource on an uplink carrier of a third cell, and the second downlink resource may be a resource on a downlink carrier of the fourth cell.

可选地，终端设备可以根据第二上行资源的子载波间隔与第二下行资源的子载波间隔的最小值确定n或m；例如第二上行资源的子载波间隔为60KHz，第二下行资源的子载波间隔为120KHz，则终端设备确定的n为子载波间隔为60KHz时的n个时间单元。可选地，终端设备可以根据第二上行资源的子载波间隔与第二下行资源的子载波间隔的最大值确定n或m；例如第一上行资源的子载波间隔为60KHz，第二下行资源的子载波间隔为120KHz，则终端设备确定的n为子载波间隔为120KHz时的n个时间单元。这里需要说明的是，第二上行资源可以为在第三小区的上行载波上的资源，第二下行资源可以为在第四小区的下行载波上的资源。应理解，上述的n为正整数，可选地，n为预定义的，或基站配置的，或终端能力上报的。Optionally, the terminal device may determine n or m according to the minimum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; for example, the subcarrier interval of the second uplink resource is 60KHz, and the The subcarrier interval is 120KHz, then n determined by the terminal device is n time units when the subcarrier interval is 60KHz. Optionally, the terminal device may determine n or m according to the maximum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; for example, the subcarrier interval of the first uplink resource is 60KHz, and the The subcarrier interval is 120KHz, then n determined by the terminal device is n time units when the subcarrier interval is 120KHz. It should be noted here that the second uplink resource may be a resource on the uplink carrier of the third cell, and the second downlink resource may be a resource on the downlink carrier of the fourth cell. It should be understood that the foregoing n is a positive integer, and optionally, n is a predefined one, or configured by a base station, or reported by a terminal capability.

需要说明的是，在本申请实施例中，确定的n和/或m可以是与子载波间隔有对应关系的值。It should be noted that, in the embodiment of the present application, the determined n and / or m may be values having a corresponding relationship with the subcarrier interval.

在一个实施例中，该终端设备根据该第三小区的通信失败恢复响应的检测时间、该第三小区和第四小区的子载波间隔偏移量，确定该n或者该m。或该终端设备根据该第三小区的通信失败恢复响应的检测时间、该第三小区的子载波间隔和第四小区的子载波间隔，确定该n或者该m。In one embodiment, the terminal device determines the n or the m according to a detection time of a communication failure recovery response of the third cell, and a subcarrier interval offset of the third cell and the fourth cell. Or, the terminal device determines the n or the m according to the detection time of the communication failure recovery response of the third cell, the subcarrier interval of the third cell, and the subcarrier interval of the fourth cell.

例如，该第三小区的下行载波的子载波间隔为XKHz，该第四小区的下行载波的子载波间隔为YKHz，在第三小区上对该第三小区的通信失败恢复时，该终端设备在发送通信失败恢复请求信息的W个时间单元后的第三小区上检测通信失败恢复响应信息，那么在通过第三小区辅助第四小区进行通信失败恢复时，该终端设备检测该第四小区的通信失败恢复响应信息的起始时间由X、Y和W确定。For example, the subcarrier interval of the downlink carrier of the third cell is XKHz, and the subcarrier interval of the downlink carrier of the fourth cell is YKHz. When the communication failure of the third cell on the third cell is recovered, the terminal device is at The communication failure recovery response information is detected on the third cell after W time units of the communication failure recovery request information, and then when the communication failure recovery is assisted by the third cell in the fourth cell, the terminal device detects the communication in the fourth cell. The start time of the failure recovery response message is determined by X, Y, and W.

可选地，n＝(Y*W)/X，或者，n大于(Y*W)/X，或者

或者

或

Optionally, n = (Y * W) / X, or n is greater than (Y * W) / X, or

or

例如，X为60KHz，Y为120KHz，W为2，则n为4。For example, if X is 60KHz, Y is 120KHz, and W is 2, then n is 4.

又例如，X为120KHz，Y为60KHz，W为2，则n为1。As another example, if X is 120KHz, Y is 60KHz, and W is 2, then n is 1.

应理解，本申请实施例中终端设备还可以采用协议中预定义的公式确定n或者m。It should be understood that, in the embodiments of the present application, the terminal device may also determine n or m by using a formula predefined in the protocol.

可选地，该第一网络设备在接收到该第一指示信息后的第x个时间单元，和/或，第y个用于发送下行控制信息的时频资源开始的时间窗内，向该终端设备发送该通信失败响应信息。Optionally, the first network device, within the time window starting from the x-th time unit after receiving the first indication information, and / or, the y-th time-frequency resource used to send downlink control information, reports to the The terminal device sends the communication failure response message.

例如，该第三小区和该第四小区都属于该第一网络设备，该第一网络设备在接收到该第一指示信息后，通过该第一网络设备和该终端设备之间的时延k，该第三小区和/或第四小区的子载波间隔确定该n，则可以确定x＝n-k。可选地，第一网络设备和该终端设备之间的时延包括从第一网络设备发送到终端设备接收的时延,和/或,终端设备发送到第一网络设备接收的时延，一个实施例中，所述时间窗也可以是预设的时间窗。For example, the third cell and the fourth cell both belong to the first network device. After receiving the first instruction information, the first network device passes the delay k between the first network device and the terminal device. If the subcarrier interval of the third cell and / or the fourth cell determines the n, then x = nk can be determined. Optionally, the time delay between the first network device and the terminal device includes a time delay sent from the first network device to the terminal device and / or a time delay sent by the terminal device to the first network device and is received, one In an embodiment, the time window may also be a preset time window.

可选地，该方法还包括：Optionally, the method further includes:

该终端设备在该第二上行资源上，向该第一网络设备发送第二指示信息，该第一网络设备在该第二上行资源上，接收该第一网络设备发送的该第二指示信息，该第二指示信息包括该第四小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。The terminal device sends second instruction information to the first network device on the second uplink resource, and the first network device receives the second instruction information sent by the first network device on the second uplink resource, The second indication information includes identification information of the fourth cell, information of a first reference signal with a channel quality greater than or equal to a first preset threshold, or information of a second reference signal with a channel quality less than or equal to a second preset threshold One or more of them.

还应理解，该下行链路还可以理解为该终端设备与该第二网络设备之间在该第四小区的链路。It should also be understood that the downlink may also be understood as a link between the terminal device and the second network device in the fourth cell.

该第一网络设备发送第一参考信号的信息。The first network device sends information of a first reference signal.

应理解，当该第三小区和该第四小区所在的网络设备为相同的网络设备(该第一网络设备)，则该第一网络设备无需发送该第一参考信号的信息，该第一网络设备可以在内部进行该第一参考信号的信息的交互。It should be understood that when the network device in which the third cell and the fourth cell are located is the same network device (the first network device), the first network device does not need to send the information of the first reference signal, and the first network The device may perform information interaction of the first reference signal internally.

可选地，该第三小区和该第四小区所在的网络设备为不同的网络设备，例如，该第三小区所在的网络设备为该第一网络设备，该第四小区所在的网络设备为该第二网络设备，则该第一网络设备发送第一参考信号的信息，包括：该第一网络设备向该第二网络设备发送该第一参考信号的信息。Optionally, the network device where the third cell and the fourth cell are located is a different network device, for example, the network device where the third cell is located is the first network device, and the network device where the fourth cell is located is the The second network device, the information that the first network device sends the first reference signal includes: the first network device sends the first reference signal information to the second network device.

可选地，该第三小区和该第四小区所在的网络设备为不同的网络设备，例如，该第三小区所在的网络设备为该第一网络设备，该第四小区所在的网络设备为该第二网络设备，则该第二网络设备在接收到该第一网络设备发送的第一参考信号的信息后，根据该第二网络设备和该终端设备之间的时延，确定该x。Optionally, the network device where the third cell and the fourth cell are located is a different network device, for example, the network device where the third cell is located is the first network device, and the network device where the fourth cell is located is the The second network device, after receiving the information of the first reference signal sent by the first network device, the second network device determines the x according to a delay between the second network device and the terminal device.

例如，该第二网络设备确定该第二网络设备和该终端设备之间的时延，和或第一网络设备与第二网络设备之间的时延，和或第一网络设备和该终端设备之间的时延为k，该第二网络设备由该第四小区的子载波间隔确定该n，则x＝n-k。For example, the second network device determines a delay between the second network device and the terminal device, or a delay between the first network device and the second network device, and or the first network device and the terminal device The time delay is k, and the second network device determines the n according to the subcarrier interval of the fourth cell, then x = nk.

可选地，该终端设备接收通信失败响应信息，包括：该终端设备在指定的下行资源上，接收该第一网络设备发送的通信失败响应信息。Optionally, the receiving, by the terminal device, communication failure response information includes that the terminal device receives, on a specified downlink resource, the communication failure response information sent by the first network device.

具体而言，该第二网络设备在接收到该第一参考信号的信息后，也可以向该第一网络设备发送该通信失败响应信息，并通过该第一网络设备转发给该终端设备。Specifically, after receiving the information of the first reference signal, the second network device may also send the communication failure response information to the first network device, and forward the communication failure response information to the terminal device through the first network device.

可选地，该第二网络设备在接收到该第一参考信号的信息后，可以向该终端设备直接发送该通信失败响应信息。Optionally, after receiving the information of the first reference signal, the second network device may directly send the communication failure response information to the terminal device.

该第一网络设备向该终端设备发送第三指示信息，该终端设备接收该第一网络设备发送的第三指示信息，该第三指示信息用于指示该终端设备接收该通信失败响应信息，该第三指示信息承载在第三下行资源上；The first network device sends third instruction information to the terminal device, the terminal device receives third instruction information sent by the first network device, and the third instruction information is used to instruct the terminal device to receive the communication failure response information, the The third indication information is carried on a third downlink resource;

该终端设备，根据该第三指示信息，确定该n或者该m；The terminal device determines the n or the m according to the third instruction information;

其中，该第三下行资源属于第三小区，该第二下行资源属于第四小区，该第三小区和该第四小区为不同的小区；或者，The third downlink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third cell and the fourth cell are different cells; or,

该第三下行资源关联的空间相关参数与该第二下行资源关联的空间相关参数不同。The spatial correlation parameter associated with the third downlink resource is different from the spatial correlation parameter associated with the second downlink resource.

可选地，该第一下行资源与该第二下行资源属于相同的小区。Optionally, the first downlink resource and the second downlink resource belong to the same cell.

可选地，该第三下行资源和该第二上行资源属于相同的小区。Optionally, the third downlink resource and the second uplink resource belong to the same cell.

可选地，该第一网络设备根据该第一网络设备与该第二网络设备的时延、该第一网络设备与该终端设备的时延、该第二网络设备与该终端设备的时延、该第三小区的子载波间隔或者该第四小区的子载波间隔中的一种或者多种，向该终端设备发送该第三指示信息。Optionally, the first network device is based on a delay between the first network device and the second network device, a delay between the first network device and the terminal device, and a delay between the second network device and the terminal device. Or one or more of a subcarrier interval of the third cell or a subcarrier interval of the fourth cell, sending the third indication information to the terminal device.

例如，该第一网络设备和该第二网络设备为不同的网络设备时，该第一网络设备可以先确定该第一网络设备和该第二网络设备之间的第一时延(例如，5ms)，那么该第一网络设备可以在发送该第一参考信号的信息后经过该第一时延，向该终端设备发送该第三指示信息，这样终端设备在接收到该第三指示信息后可以确定该n或者该m，而该第二网络设备可以获知该第二网络设备和该终端设备之间的第二时延，可以保证该终端设备在发送该第一指示信息后的第n个时间单元，和/或，第m个用于发送下行控制信道的时频资源开始的时间窗内，接收到该第二网络设备发送的该通信失败响应信息。应理解，本申请中，时延可以理解为从一个设备发送到另一个设备接收的时间间隔。For example, when the first network device and the second network device are different network devices, the first network device may first determine a first delay (for example, 5 ms) between the first network device and the second network device. ), The first network device may send the third instruction information to the terminal device after the first delay after sending the information of the first reference signal, so that the terminal device may receive the third instruction information after receiving the third instruction information. Determine the n or the m, and the second network device can learn the second delay between the second network device and the terminal device, and can ensure the nth time after the terminal device sends the first instruction information A unit, and / or, within the m-th time window at which the time-frequency resource for sending the downlink control channel starts, receives the communication failure response information sent by the second network device. It should be understood that, in this application, the delay may be understood as a time interval sent from one device to another device.

可选地，该终端设备在第二时频资源上接收该第一网络设备发送的第三指示信息。Optionally, the terminal device receives the third indication information sent by the first network device on the second time-frequency resource.

可选地，该第一时频域资源和该第二时频域资源为不同的时频域资源，或者，该第一时频域资源和该第二时频域资源由不同的控制资源集合和/或搜索空间集合确定。Optionally, the first time-frequency domain resource and the second time-frequency domain resource are different time-frequency domain resources, or the first time-frequency domain resource and the second time-frequency domain resource are set by different control resources. And / or search space collection determined.

可选地，该第二时频资源由控制资源集合和/或搜索空间集合确定。Optionally, the second time-frequency resource is determined by a control resource set and / or a search space set.

可选地，该第三指示信息包括用于指示接收该通信失败响应信息的起始时刻的信息、该第四小区的标识信息、用于接收该通信失败响应信息的控制资源集合的标识信息或者用于接收该通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。Optionally, the third indication information includes information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, identification information of a control resource set used to receive the communication failure response information, or One or more types of identification information of a search space set for receiving the communication failure response information.

可选地，该终端设备接收通信失败响应信息的时间窗由网络设备通过高层信令(例如，RRC信令)配置给该终端设备。Optionally, a time window for the terminal device to receive communication failure response information is configured by the network device to the terminal device through high-level signaling (for example, RRC signaling).

在一些可能的实现方式中，该终端设备接收该通信失败响应信息的起始时刻由该第一网络设备确定。可选地，该方法还包括：In some possible implementation manners, a start time at which the terminal device receives the communication failure response information is determined by the first network device. Optionally, the method further includes:

该终端设备在接收到该第三指示信息后的第a个时间单元开始的时间窗口内，接收该通信失败响应信息，a为大于或者等于0的整数；或者，The terminal device receives the communication failure response information within a time window starting from the a-th time unit after receiving the third indication information, where a is an integer greater than or equal to 0; or,

该终端设备在接收到该第三指示信息后的第b个用于发送下行控制信道的时频资源位置开始的时间窗口内，接收该通信失败响应信息，b为大于或者等于0的整数。After receiving the third indication information, the terminal device receives the communication failure response information within a time window starting from the time-frequency resource location of the downlink control channel, where b is an integer greater than or equal to zero.

例如，该终端设备从发送该第一指示信息到接收该第三指示信息经历了c个时间单元，其中c＝n-a，则该终端设备可以是在接收到该第三指示信息后的a个时间单元开始的时间窗口内接收该通信失败响应信息。For example, the terminal device has experienced c time units from sending the first instruction information to receiving the third instruction information, where c = na, the terminal device may be a time after receiving the third instruction information. The communication failure response message is received within the time window at which the unit started.

又例如，该a或者b可以由协议预定义，当该终端设备接收到该第三指示信息后，根据协议预定义的内容，接收该通信失败响应信息。For another example, the a or b may be predefined by a protocol. After receiving the third instruction information, the terminal device receives the communication failure response information according to the predefined content of the protocol.

可选地，该终端设备在第二时频资源上接收该通信失败响应信息。Optionally, the terminal device receives the communication failure response information on the second time-frequency resource.

例如，该a＝0时，该终端设备可以在接收到该第三指示信息的当前时隙(或者当前子帧等)开始的时间窗内接收该通信失败响应信息。For example, when a = 0, the terminal device may receive the communication failure response information within a time window starting from a current time slot (or a current subframe or the like) that received the third indication information.

又例如，a＝4时，该终端设备可以在接收到该第三指示信息后的4个时隙(或者子帧等)开始的时间窗内接收该通信失败响应信息。For another example, when a = 4, the terminal device may receive the communication failure response information within a time window starting in 4 time slots (or subframes, etc.) after receiving the third indication information.

再例如，b＝1，该终端设备可以在接收到该第三指示信息后的第一个用于发送下行控制信道的时频资源位置开始的时间窗口内接收该通信失败响应信息。For another example, b = 1, the terminal device may receive the communication failure response information within a time window after the first time-frequency resource location for sending the downlink control channel after receiving the third indication information.

可选地，本申请实施例中，若该终端设备在该时间窗口内没有收到该通信失败响应信息，则会重新向该第一网络设备发送该第一指示信息，即重新发起通信失败恢复请求，重新发起通信失败恢复请求时可以和上一次发送通信失败恢复请求使用不同的波束，或者，重新发起通信失败恢复请求时和上一次发送通信失败恢复请求使用相同的波束，终端设备可以相应地提高发射功率。Optionally, in the embodiment of the present application, if the terminal device does not receive the communication failure response information within the time window, it will resend the first instruction information to the first network device, that is, re-initiate communication failure recovery. Request, when the communication failure recovery request is re-initiated, a different beam may be used when the communication failure recovery request is sent last time, or when the communication failure recovery request is re-initiated, the same beam may be used when the communication failure recovery request is sent last, and the terminal device may respond accordingly Increase transmit power.

可选地，若该终端设备在该时间窗口内收到该第一指示信息，则该终端设备还会继续检测(或者，接收)第一时频资源或第一时频资源上承载的PDCCH。其中，可选地，终端设备使用信道质量大于或者等于第一门限值的参考信号的波束检测或接收PDCCH或第一指示信息关联的下行参考信号的波束检测或接收PDCCH。也即终端设备采用信道质量大于或等于第一门限值的参考信号或第一指示信息关联的下行参考信号的空间相关参数检测或接收PDCCH。Optionally, if the terminal device receives the first indication information within the time window, the terminal device will continue to detect (or receive) the first time-frequency resource or the PDCCH carried on the first time-frequency resource. Wherein, optionally, the terminal device detects or receives the PDCCH by using a beam of a reference signal whose channel quality is greater than or equal to the first threshold value or receiving the PDCCH by using a beam of a downlink reference signal associated with the first indication information. That is, the terminal device detects or receives the PDCCH by using a spatially related parameter of a reference signal with a channel quality greater than or equal to a first threshold value or a downlink reference signal associated with the first indication information.

应理解，本申请实施例中，该第一网络设备发送第三指示信息和发送第一参考信号的信息的先后顺序并不作任何限定。It should be understood that, in the embodiment of the present application, the sequence in which the first network device sends the third indication information and the information for sending the first reference signal is not limited in any way.

还应理解，本申请实施例中，该第一网络设备在收到该终端设备发送的该第一指示信息后，除了可以向该第二网络设备发送该第一参考信号的信息，还可以向该第二网络设备发送其他信息，例如，该第一网络设备可以向该第二网络设备转发该第一指示信息。It should also be understood that, in the embodiment of the present application, after receiving the first indication information sent by the terminal device, the first network device may send the first reference signal information to the second network device, and may also The second network device sends other information, for example, the first network device may forward the first indication information to the second network device.

可选地，该第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。Optionally, the third indication information is carried in one or more of downlink control information DCI, media access control layer control element MAC CE, or radio resource control RRC signaling.

可选地，该第一网络设备在专用于发送通信失败响应信息的控制资源集合和/或专用于发送通信失败响应信息的搜索空间集合上向该终端设备发送该DCI；或者该第一网络设备在专用于发送通信失败响应信息的控制资源集合和/或专用于发送通信失败响应信息的搜索空间集合上承载的PDCCH所调度的PDSCH资源上发送MAC CE、RRC。可选地，该控制资源集合和/或搜索空间集合和/或PDSCH是为第一网络设备配置的第四小区的资源。Optionally, the first network device sends the DCI to the terminal device on a control resource set dedicated to sending communication failure response information and / or a search space set dedicated to sending communication failure response information; or the first network device Sending MAC CE, RRC on a control resource set dedicated to sending communication failure response information and / or a PDSCH resource scheduled on a PDCCH carried on a search space set dedicated to sending communication failure response information. Optionally, the control resource set and / or search space set and / or PDSCH are resources of a fourth cell configured for the first network device.

可选地，该DCI中包括第一字段，该第一字段用于指示该终端设备接收链路失败恢复响应信息。Optionally, the DCI includes a first field, where the first field is used to instruct the terminal device to receive link failure recovery response information.

具体地，可以有以下几种方式：Specifically, there are the following ways:

方式一method one

DCI格式为第一格式，该DCI是专用于指示该终端设备接收链路失败恢复响应信息的信令。The DCI format is a first format, and the DCI is dedicated to instruct the terminal device to receive link failure recovery response information.

方式二Way two

DCI格式为第二格式，所述第二格式的DCI用于上行数据传输或下行数据传输。该第一字段中的信息仅用于指示UE检测链路失败恢复响应信息的信令。The DCI format is a second format, and the DCI in the second format is used for uplink data transmission or downlink data transmission. The information in the first field is only used to instruct the UE to detect link failure recovery response signaling.

应理解，该第二格式可以为NR中DCI的格式，例如，1-0，1-1等。It should be understood that the second format may be a format of DCI in the NR, for example, 1-0, 1-1, and the like.

方式三Way three

DCI格式为第二格式，所述第二格式的DCI用于上行数据传输或下行数据传输，该第一字段承载于该DCI中的时频资源指示字域中。The DCI format is a second format. The DCI in the second format is used for uplink data transmission or downlink data transmission. The first field is carried in a time-frequency resource indicator field in the DCI.

可选地，该时域资源指示和/或频域资源指示字域全为0时指示该终端设备接收来自于该第二网络设备的通信失败响应信息。Optionally, when the time domain resource indicator and / or the frequency domain resource indicator word fields are all 0, the terminal device is instructed to receive communication failure response information from the second network device.

本申请实施例中，由于知道主小区和/或辅小区的子载波间隔，或网络设备内部/之间的交互或处理时延，和或终端上报的终端能力信息(如小区切换时延等)，则该第一网络设备可以向该终端发送指示信息，以便于告知终端设备接收通信失败响应信息的起始时刻。In the embodiments of the present application, because the subcarrier interval of the primary cell and / or the secondary cell is known, or the interaction or processing delay within / between network equipment, and the terminal capability information reported by the terminal (such as cell switching delay, etc.) , The first network device may send instruction information to the terminal, so as to inform the terminal device of a start time of receiving the communication failure response information.

本申请实施例的链路失败恢复的方法，通过向终端设备发送指示信息，有助于保证终端设备更准确和高效得接收链路失败恢复响应信息，快速恢复链路，保证***的稳定性，同时，还有助于节省终端设备的功耗。The method for recovering a link failure in the embodiment of the present application helps to ensure that the terminal device receives the link failure recovery response information more accurately and efficiently by sending instruction information to the terminal device, recovering the link quickly, and ensuring the stability of the system. At the same time, it also helps to save power consumption of terminal equipment.

终端设备在第p时间单元发送链路失败请求信息,在第q时间单元检测链路失败恢复响应信息。但是由于该小区的上行载波和下行载波的子载波间隔(或***参数)不同，使得终端设备不知第p时间单元是在哪个子载波间隔(或***参数)情况下的时间单元，不知第q时间单元是在哪个子载波间隔(或***参数)情况下的时间单元。现有***中在不同的子载波间隔下，其时间单元的绝对时间不同。鉴于此，下面描述一种通信失败恢复的方法。The terminal device sends the link failure request information at the p-th time unit, and detects the link failure recovery response information at the q-th time unit. However, because the subcarrier interval (or system parameter) of the uplink carrier and the downlink carrier of the cell is different, the terminal device does not know which subcarrier interval (or system parameter) is the time unit, and does not know the qth time. A unit is a time unit in the case of which subcarrier interval (or system parameter). In the existing system, the absolute time of the time unit is different under different subcarrier intervals. In view of this, a method for communication failure recovery is described below.

终端设备在第二上行资源上，在第p时间单元向网络设备发送第一指示信息，所述第一指示信息用于指示所述终端设备在第一下行资源上的通信失败；The terminal device sends the first instruction information to the network device at the p-th time unit on the second uplink resource, where the first instruction information is used to indicate that the terminal device fails to communicate on the first downlink resource;

所述终端设备在第q时间单元或第q时间单元开始的时间窗内，检测通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The terminal device detects communication failure response information within a time window starting at the qth time unit or the qth time unit, and the communication failure response information is the first downlink resource carried on the second downlink resource. Response to a communication failure;

其中，所述p为大于或者等于0的整数，所述q为大于或者等于0的整数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，Wherein, p is an integer greater than or equal to 0, q is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or

所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数；A spatial correlation parameter associated with the second uplink resource and a spatial correlation parameter associated with the second downlink resource;

所述终端设备根据所述第三小区和/或所述第四小区的***参数确定所述p和/或q。The terminal device determines the p and / or q according to a system parameter of the third cell and / or the fourth cell.

在某些可能的实现方式中，所述终端设备根据所述第三小区和/或所述第四小区的***参数确定所述p包括：In some possible implementation manners, the determining, by the terminal device, the p according to a system parameter of the third cell and / or the fourth cell includes:

所述终端设备根据所述第三小区的上行载波的***参数确定所述p；或者Determining, by the terminal device, p according to a system parameter of an uplink carrier of the third cell; or

所述终端设备根据所述第二上行资源的***参数确定所述p；或者Determining, by the terminal device, p according to a system parameter of the second uplink resource; or

所述终端设备根据所述第三小区的第三上行资源的***参数确定所述p；Determining, by the terminal device, p according to a system parameter of a third uplink resource of the third cell;

所述终端设备根据所述第三小区的所有上行资源的***参数最小的上行资源的***参数确定所述p。The terminal device determines the p according to a system parameter of an uplink resource with a minimum system parameter of all uplink resources of the third cell.

例如，所述第三上行资源为SRS和/或PUCCH和/或PUSCH和/或PRACH和/或CSI-RS等。For example, the third uplink resource is SRS and / or PUCCH and / or PUSCH and / or PRACH and / or CSI-RS.

例如，所述第三小区的所有上行资源为SRS和/或PUCCH和/或PUSCH和/或PRACH和/或CSI-RS等。For example, all uplink resources of the third cell are SRS and / or PUCCH and / or PUSCH and / or PRACH and / or CSI-RS.

在某些可能的实现方式中，所述终端设备根据所述第三小区和/或所述第四小区的***参数确定所述q，包括：In some possible implementation manners, the terminal device determining the q according to a system parameter of the third cell and / or the fourth cell includes:

所述终端设备根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定所述q；或者Determining, by the terminal device, q according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述终端设备根据所述第二上行资源的***参数与第二下行资源的***参数确定所述q；或者Determining, by the terminal device, q according to a system parameter of the second uplink resource and a system parameter of the second downlink resource; or

所述终端设备根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定所述q；或者Determining, by the terminal device, q according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述终端设备根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数和所述p确定所述q；或者Determining, by the terminal device, q according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of a fourth cell and the p; or

所述终端设备根据所述第二上行资源的***参数与第二下行资源的***参数和所述p确定所述q；或者Determining, by the terminal device, q according to a system parameter of the second uplink resource, a system parameter of a second downlink resource, and p; or

所述终端设备根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数和所述p确定所述q。The terminal device determines the q according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell and the p.

例如，所述第三上行资源可以为SRS和/或PUCCH等。For example, the third uplink resource may be SRS and / or PUCCH.

在某些可能的实现方式中，q可以通过以下任一个公式确定：In some possible implementations, q can be determined by any of the following formulas:

其中，

为下取整运算，

为上取整运算。可选的，q是哪个***参数确定的时间单元的个数，K与K1就是哪个***参数确定的时间单元的个数。如，q是第四小区的下行子载波的时间单元的个数，K，K1也为第四小区的下行子载波的时间单元的个数。其中，Z可以是网络设备发送的或者是预定义的或者终端能力上报的，Z可以表示时长，如若干毫秒的时长。所述K或Z为正整数。 among them,

For rounding down operations,

Round-up operation. Optionally, q is the number of time units determined by which system parameter, and K and K1 are the number of time units determined by which system parameter. For example, q is the number of time units of the downlink subcarriers of the fourth cell, and K, K1 are also the number of time units of the downlink subcarriers of the fourth cell. Among them, Z may be sent by a network device or may be predefined or reported by a terminal capability, and Z may represent a duration, such as a duration of several milliseconds. The K or Z is a positive integer.

可选的，μ1是第三小区的上行载波的***参数，μ2是第四小区的下行载波的***参数；或者，μ1是第二上行资源的***参数，μ2是第四小区的第二下行资源的***参数；或者，μ1是第三小区的第三上行资源的***参数，μ2是第四小区的第三下行资源的***参数；所述K或Z为正整数。Optionally, μ1 is a system parameter of the uplink carrier of the third cell, μ2 is a system parameter of the downlink carrier of the fourth cell, or μ1 is a system parameter of the second uplink resource, and μ2 is a second downlink resource of the fourth cell Or μ1 is a system parameter of the third uplink resource of the third cell, μ2 is a system parameter of the third downlink resource of the fourth cell; and K or Z is a positive integer.

可选的，所述K为预定义的或者终端设备能力上报的或者网络设备指示的(如通过第三指示信息指示)。Optionally, K is predefined or reported by the terminal device capability or indicated by the network device (such as indicated by the third instruction information).

可选的，所述Z为预定义的或者终端设备能力上报的或者网络设备指示的(如通过第三指示信息指示)可选地，所述Z＝1。Optionally, the Z is predefined or reported by the terminal device capability or indicated by the network device (as indicated by the third instruction information). Optionally, the Z = 1.

所述K基于第四小区的下行载波的***参数或者第四小区的第二下行资源的***参数或者第四小区的第三下行资源的***参数确定的。The K is determined based on a system parameter of a downlink carrier of the fourth cell or a system parameter of a second downlink resource of the fourth cell or a system parameter of a third downlink resource of the fourth cell.

可选的，所述N为一个子帧中的时隙数目，N为正整数。Optionally, N is the number of time slots in a subframe, and N is a positive integer.

在某些实现方式中，所述终端设备接收第三指示信息；所述终端设备根据所述第三指示信息，确定所述K。In some implementation manners, the terminal device receives third instruction information; the terminal device determines the K according to the third instruction information.

表5：正常循环前缀的每个时隙所含的OFDM符号数目

每帧所含的时隙数目

每子帧所含的时隙数目

Table 5: Number of OFDM symbols in each slot of the normal cyclic prefix

Number of time slots contained in each frame

Number of time slots contained in each subframe

表5table 5

表6：正扩展循环前缀的每个时隙所含的OFDM符号数目

每帧所含的时隙数目

每子帧所含的时隙数目

Table 6: Number of OFDM symbols in each slot of the positive extended cyclic prefix

Number of time slots contained in each frame

Number of time slots contained in each subframe

表6Table 6

其中，μ是***参数的标识，μ的取值与子载波间隔有关，如下表7所示。Among them, μ is an identifier of a system parameter, and the value of μ is related to the subcarrier interval, as shown in Table 7 below.

表7Table 7

上行时隙和下行时隙的单位长度可以是不同的。以PDCCH为例，由于上行传输和下行传输的子载波间隔(Subcarrier spacing，SCS)可能不同，例如上行传输使用15kHz的SCS，一个上行时隙的长度为1毫秒，下行传输使用120KHz的SCS，一个下行时隙的长度为0.125毫秒。结合表3可知，上行传输使用15kHz的SCS，即Δf为15kHz，其对应的***参数μ为0，下行传输使用120kHz的SCS，即Δf为120kHz，其对应的***参数μ为3，因此上下行传输对应的***参数不同，上行时隙和下行时隙的单位长度也不同，导致网络设备和终端发送链路失败恢复请求信息的时刻(第p时间单元)，以及检测链路失败恢复响应信息(第q时间单元)的时刻会有不同的理解。The unit length of the uplink time slot and the downlink time slot may be different. Take PDCCH as an example, because the subcarrier spacing (SCS) of uplink transmission and downlink transmission may be different, for example, the uplink transmission uses SCS of 15kHz, the length of one uplink slot is 1ms, and the downlink transmission uses SCS of 120KHz, one The length of the downlink time slot is 0.125 milliseconds. It can be known from Table 3 that the uplink transmission uses 15 kHz SCS, that is, Δf is 15 kHz, and the corresponding system parameter μ is 0, and the downlink transmission uses 120 kHz SCS, that is, Δf is 120 kHz, and the corresponding system parameter μ is 3, so the uplink and downlink The system parameters corresponding to the transmission are different, and the unit lengths of the uplink time slot and the downlink time slot are also different, which causes the network device and the terminal to send the link failure recovery request information at the time (p time unit) and the link failure recovery response information ( The time of unit q) will be interpreted differently.

可选地，为描述方便，本实施例中的终端设备发送第一指示信息的时刻为第一时刻，终端设备检测或开始检测链路失败恢复响应信息的时刻或者检测链路失败恢复响应信息的时间窗的起始时刻为第二时刻，经过在第一时刻经过第一预设时长后即为第二时刻。其中μ1，μ2的解释同上文，本实施例中不再赘述。可选地，本实施例中时间单元为时隙(slot)，与前文所述还可以为其他的单元类型，本实施例不做限定。具体地有以下几种方式：Optionally, for convenience of description, the time when the terminal device sends the first indication information in this embodiment is the first time, and the time when the terminal device detects or starts detecting the link failure recovery response information or detects the link failure recovery response information. The starting time of the time window is the second time, and after the first preset time period elapses at the first time, it is the second time. The explanations of μ1 and μ2 are the same as above, and are not repeated in this embodiment. Optionally, the time unit in this embodiment is a slot, and other unit types may be used as described above, which is not limited in this embodiment. Specifically, there are the following ways:

第一种方式：The first way:

第一时刻，即第p个时隙为第三小区的上行时隙(p)，终端根据第三小区的上行载波分量(component carrier,CC)或上行部分带宽(bandwidth part，BWP)或上行帧，或第三小区的第二上行资源，或第三小区的第三上行资源的***参数，确定第二时刻。The first moment, that is, the p-th time slot is the uplink time slot (p) of the third cell. The terminal determines the uplink carrier component (CC) or uplink part bandwidth (BWP) or uplink frame of the third cell. Or the system parameter of the second uplink resource of the third cell, or the third uplink resource of the third cell, determines the second time.

具体的，第一时刻是所述终端向所述网络设备发送第一指示信息的上行时隙(p)，终端在该上行时隙(p)开启定时器，所述第一预设时长即为所述定时器的长度，为Z毫秒，具体的，可以是4毫秒；或者为K个上行时隙，K为正整数；例如，根据表7所示，一个上行时隙的子载波间隔为15kHz时，其长度为1毫秒时，则定时器的长度，即第一预设时长可以是4个上行时隙。Specifically, the first time is the uplink time slot (p) where the terminal sends the first indication information to the network device, and the terminal starts a timer in the uplink time slot (p), and the first preset duration is The length of the timer is Z milliseconds, specifically, 4 milliseconds; or K uplink time slots, where K is a positive integer; for example, according to Table 7, the subcarrier interval of an uplink time slot is 15 kHz. When the length is 1 millisecond, the length of the timer, that is, the first preset duration may be 4 uplink time slots.

或者，令使用所述检测链路失败恢复响应信息的时刻为：

其中slot(p)表示上行时隙(p)，为所述第一时刻；

为所述第一预设时长，N为一个子帧中的时隙数目。例如，第一预设时长

等于4毫秒；或根据表5和7所示，一个上行时隙的子载波间隔为15kHz时，其一个子帧中的时隙数目为1的时候，第一预设时长

等于4个上行时隙，在第一预设时长到达后，即4毫秒或者4个上行时隙之后，即为第二时刻(如检测链路失败恢复响应信息)。 Alternatively, the time when the link failure recovery response information is used is:

Where slot (p) represents an uplink time slot (p), which is the first time;

Is the first preset duration, and N is the number of time slots in one subframe. For example, the first preset duration

Equal to 4 milliseconds; or according to Tables 5 and 7, when the subcarrier interval of an uplink slot is 15kHz, when the number of slots in one subframe is 1, the first preset duration

It is equal to 4 uplink time slots. After the first preset time length is reached, that is, 4 milliseconds or 4 uplink time slots, it is the second time (for example, a link failure recovery response message is detected).

相应的，网络设备采用同样的方式确定第一时刻和第二时刻。Accordingly, the network device determines the first time and the second time in the same manner.

第二种方式：第一时刻，即第p个时隙为上行时隙(p)或上行时隙(p)对应的下行时隙(w)，终端根据第四小区的下行CC或下行BWP或下行帧或第四小区的第二下行资源或第四小区的第三下行资源的***参数配置，确定第二时刻。The second method: at the first moment, that is, the p-th time slot is the uplink time slot (p) or the downlink time slot (w) corresponding to the uplink time slot (p), the terminal uses the downlink CC or downlink BWP or The system parameter configuration of the downlink frame or the second downlink resource of the fourth cell or the third downlink resource of the fourth cell determines the second moment.

具体的，第一时刻是所述终端向所述网络设备发送第一指示信息的上行时隙(p)对应的下行时隙(w)，终端在该下行时隙(w)开启定时器，所述第一预设时长即为所述定时器的长度，为Z毫秒，具体的，可以是4毫秒；或者为K个下行时隙，K为正整数；例如，根据表7所示，一个上行时隙的子载波间隔为120kHz时，一个下行时隙的长度为0.125毫秒时，则定时器的长度，即第一预设时长可以是32个下行时隙。Specifically, the first time is the downlink time slot (w) corresponding to the uplink time slot (p) where the terminal sends the first indication information to the network device, and the terminal starts a timer in the downlink time slot (w). The first preset duration is the length of the timer, which is Z milliseconds, specifically, 4 milliseconds; or K downlink time slots, where K is a positive integer; for example, according to Table 7, an uplink When the subcarrier interval of the time slot is 120 kHz, and the length of one downlink time slot is 0.125 milliseconds, the length of the timer, that is, the first preset time length may be 32 downlink time slots.

上行时隙换算到下行时隙的方法可以为

其中

是向下取整符号。 The method for converting the uplink time slot to the downlink time slot can be

among them

Is the round down symbol.

或者，令终端第二时刻为：

其中

表示下行时隙(w)，为所述第一时刻，其中，slot(p)为所述终端向所述网络设备发送第一指示信息的上行时隙(p). Or, let the second moment of the terminal be:

among them

Represents a downlink time slot (w), which is the first time, wherein slot (p) is an uplink time slot (p) in which the terminal sends first indication information to the network device.

等于4毫秒，或根据表5和7所示，一个上行时隙的子载波间隔为120kHz时，其一个子帧中的时隙数目为8的时候，第一预设时长

为32个下行时隙，因此，在第一预设时长到达后，即4毫秒或者32个下行时隙之后，即为第二时刻(如开始检测链路失败恢复响应信息)。

Equal to 4 milliseconds, or according to Tables 5 and 7, when the subcarrier interval of an uplink slot is 120kHz, when the number of slots in a subframe is 8, the first preset duration

There are 32 downlink time slots, so after the first preset time length is reached, that is, 4 milliseconds or after 32 downlink time slots, it is the second time (for example, the response information to start detecting link failure recovery).

第三种方式：终端比较上行和下行的***参数，确定其中一个作为统一时间的依据。例如，终端比较载波分量或带宽部分或者上下行帧的***参数μ，以上行子载波间隔和下行子载波间隔中较小的子载波间隔对应的***参数作为时间度量的范围，作为确定第一时刻的以及第一预设时长依据，也即确定第二时刻。The third method: the terminal compares the uplink and downlink system parameters, and determines one of them as the basis for the unified time. For example, the terminal compares the carrier component or the bandwidth part or the system parameter μ of the uplink and downlink frames. The system parameter corresponding to the smaller subcarrier interval in the upper row and the lower subcarrier interval is used as the range of the time metric, and is used to determine the first moment. And the first preset duration basis, that is, the second moment is determined.

具体的，终端在向网络设备发送第一指示信息的时隙p开启定时器，该时隙p为上行子载波间隔和下行子载波间隔中较小的子载波间隔对应的载波分量或带宽部分或者上下行帧的***参数μ对应的时隙(p)，例如可以是上行时隙(p)，也可以是下行时隙(p)。Specifically, the terminal starts a timer at a time slot p that sends the first indication information to the network device, where the time slot p is a carrier component or a bandwidth part corresponding to a smaller subcarrier interval of the uplink subcarrier interval and the downlink subcarrier interval, or The time slot (p) corresponding to the system parameter μ of the uplink and downlink frames may be, for example, an uplink time slot (p) or a downlink time slot (p).

或者，令第二时刻为：

其中，μ为μ1和μ2中的较小值。如表7所示，假如上行载波分量或上行带宽部分或上行帧对应的子载波间隔为15kHz，则对应的μ1为0，假如下行载波分量或下行带宽部分或下行帧对应的子载波间隔为120kHz，则对应的μ2为3，则使用

确定终端检测链路失败恢复响应信息的时刻时，μ为μ1和μ2中的较小值μ1，slot(p)也为μ1对应的上行时隙(p)。 Or, let the second moment be:

Among them, μ is a smaller value among μ1 and μ2. As shown in Table 7, if the subcarrier interval corresponding to the uplink carrier component or uplink bandwidth part or uplink frame is 15kHz, the corresponding μ1 is 0, and the subcarrier interval corresponding to the lower carrier component or downlink bandwidth part or downlink frame is 120kHz. , The corresponding μ2 is 3, then use

When determining the time when the terminal detects the link failure recovery response information, μ is the smaller value μ1 of μ1 and μ2, and slot (p) is also the uplink time slot (p) corresponding to μ1.

应理解，上述为终端设备确定检测通信失败响应信息的时间，具体可以根据上面的方式确定p和q。网络设备确定发送通信失败响应信息的时间与终端设备类似，也可以根据上面的方式确定接收第一指示信息的时间以及确定发送失败响应信息的时间，在此不详细举例说明。It should be understood that the foregoing is the time for the terminal device to determine the response information for detecting the communication failure, and specifically, p and q may be determined according to the above manner. The time when the network device determines to send the communication failure response information is similar to that of the terminal device. The time for receiving the first instruction information and the time for sending the failure response information may also be determined according to the above manner, which is not described in detail here.

以上结合图1至图5，详细得描述了本申请实施例提供的通信失败恢复的方法，下面结合图6至图10，详细描述本申请实施例提供的通信失败恢复的装置、终端设备和网络设备。The method for recovering communication failures provided in the embodiments of the present application has been described in detail above with reference to FIGS. 1 to 5, and the apparatus, terminal device, and network for recovering communication failures provided in the embodiments of the application are described in detail below with reference to FIGS. 6 to 10. device.

图6示出了本申请实施例提供的通信失败恢复的装置600的示意性框图，该装置600可以对应上述方法400中描述的终端设备，也可以对应终端设备的芯片或者组件，并且，该装置600中各个模块或者单元分别可以用于执行上述方法400中终端设备所执行的各动作或处理过程，如图6所示，该通信失败恢复的装置600可以包括处理单元610和收发单元620。FIG. 6 shows a schematic block diagram of a device 600 for communication failure recovery provided by an embodiment of the present application. The device 600 may correspond to the terminal device described in the above method 400, and may also correspond to a chip or component of the terminal device. Each module or unit in 600 may be respectively used to perform various actions or processing processes performed by the terminal device in the foregoing method 400. As shown in FIG.

具体地，处理单元610，用于确定在第一下行资源上通信失败；Specifically, the processing unit 610 is configured to determine that communication fails on the first downlink resource;

收发单元620，用于在该第一上行资源上，向网络设备发送第一指示信息，该第一指示信息用于指示该第一下行资源上的通信失败，该第一上行资源为用于承载信道状态信息CSI的资源；The transceiver unit 620 is configured to send first indication information to the network device on the first uplink resource, where the first indication information is used to indicate that the communication on the first downlink resource fails, and the first uplink resource is used for Resources carrying channel state information CSI;

可选地，该第一指示信息承载于该CSI的填充比特中；或者，Optionally, the first indication information is carried in a padding bit of the CSI; or

该第一指示信息承载于该CSI的非零宽带幅度系数字域中；或者，The first indication information is carried in a non-zero wideband amplitude digital domain of the CSI; or

该CSI包括信道质量指示CQI字域，该第一指示信息承载于该CQI字域的状态位中。The CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.

可选地，该处理单元610，还用于确定第二指示信息，该第二指示信息包括该第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种；Optionally, the processing unit 610 is further configured to determine second indication information, where the second indication information includes identification information of the second cell, information of a first reference signal whose channel quality is greater than or equal to a first preset threshold, or One or more kinds of information of a second reference signal whose channel quality is less than or equal to a second preset threshold;

该收发单元620，还用于在该第一上行资源上，向该网络设备发送该第二指示信息。The transceiver unit 620 is further configured to send the second instruction information to the network device on the first uplink resource.

可选地，该第二指示信息承载于该CSI的最低优先级内容对应的字域中。Optionally, the second indication information is carried in a field corresponding to the lowest priority content of the CSI.

可选地，该CQI字域包括宽带CQI字域，该第一指示信息承载于该宽带CQI字域的最低状态位中。Optionally, the CQI word field includes a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.

可选地，该CQI字域包括宽带CQI字域和子带CQI字域，该第一指示信息承载于该宽带CQI字域和该子带CQI字域结合的状态位中。Optionally, the CQI word field includes a wideband CQI word field and a subband CQI word field, and the first indication information is carried in a status bit combining the wideband CQI word field and the subband CQI word field.

应理解，装置600中各单元执行上述相应步骤的具体过程请参照前文中结合图4的方法实施例的描述，为了简洁，这里不加赘述。It should be understood that, for a specific process of each unit in the apparatus 600 performing the foregoing corresponding steps, please refer to the foregoing description of the method embodiment in conjunction with FIG. 4, and for the sake of brevity, details are not described herein.

图7示出了本申请实施例提供的通信失败恢复的装置700的示意性框图，该装置700可以对应上述方法400中描述的网络设备，也可以对应网络设备的芯片或者组件，并且，该装置700中各个模块或者单元分别可以用于执行上述方法400中网络设备所执行的各动作或处理过程，如图7所示，该通信失败恢复的装置700可以包括收发单元710和处理单元720。FIG. 7 shows a schematic block diagram of a device 700 for communication failure recovery provided by an embodiment of the present application. The device 700 may correspond to the network device described in the foregoing method 400, and may also correspond to a chip or component of the network device. Each module or unit in the 700 may be used to perform each action or processing performed by the network device in the foregoing method 400. As shown in FIG. 7, the apparatus 700 for recovering from communication failure may include a transceiver unit 710 and a processing unit 720.

具体地，收发单元710，用于在第一上行资源上，接收终端设备发送的第一指示信息，该第一指示信息用于指示该终端设备在第一下行资源上的通信失败，该第一上行资源为用于承载信道状态信息CSI的资源；Specifically, the transceiver unit 710 is configured to receive, on a first uplink resource, first instruction information sent by a terminal device, where the first instruction information is used to indicate that the terminal device fails to communicate on the first downlink resource. An uplink resource is a resource used to carry channel state information CSI;

处理单元720，用于确定该终端设备在第一下行资源上的通信失败；A processing unit 720, configured to determine that the terminal device fails to communicate on the first downlink resource;

可选地，该收发单元710，还用于在该第一上行资源上，接收该终端设备发送的第二指示信息，该第二指示信息包括该第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种；Optionally, the transceiver unit 710 is further configured to receive, on the first uplink resource, second indication information sent by the terminal device, where the second indication information includes identification information of the second cell, and a channel quality is greater than or equal to One or more of information of a first reference signal of a first preset threshold or information of a second reference signal of which a channel quality is less than or equal to a second preset threshold;

该处理单元720，还用于确定该第二指示信息。The processing unit 720 is further configured to determine the second instruction information.

应理解，装置700中各单元执行上述相应步骤的具体过程请参照前文中结合图4的方法实施例的描述，为了简洁，这里不加赘述。It should be understood that, for a specific process in which each unit in the device 700 executes the foregoing corresponding steps, please refer to the foregoing description in conjunction with the method embodiment of FIG. 4. For brevity, details are not described herein.

图8示出了本申请实施例提供的通信失败恢复的装置800的示意性框图，该装置800可以对应上述方法500中描述的终端设备，也可以对应终端设备的芯片或者组件，并且，该装置800中各个模块或者单元分别可以用于执行上述方法500中终端设备所执行的各动作或处理过程，如图8所示，该通信失败恢复的装置800可以包括处理单元810和收发单元820。FIG. 8 shows a schematic block diagram of a device 800 for communication failure recovery provided by an embodiment of the present application. The device 800 may correspond to the terminal device described in the foregoing method 500, and may also correspond to a chip or component of the terminal device. Each module or unit in 800 may be used to perform various actions or processing processes performed by the terminal device in the above method 500. As shown in FIG. 8, the device 800 for recovering from communication failure may include a processing unit 810 and a transceiver unit 820.

具体地，处理单元810，用于确定该装置在第一下行资源上的通信失败；Specifically, the processing unit 810 is configured to determine that the device fails to communicate on the first downlink resource;

收发单元820，用于在第二上行资源上，向网络设备发送第一指示信息，该第一指示信息用于指示该装置在第一下行资源上的通信失败；The transceiver unit 820 is configured to send the first instruction information to the network device on the second uplink resource, where the first instruction information is used to indicate that the device fails to communicate on the first downlink resource;

该收发单元820，还用于在发送该第一指示信息后的第n个时间单元，和/或，第m 个用于发送下行控制信道的时频资源位置开始的时间窗内，接收通信失败响应信息，该通信失败响应信息为承载在第二下行资源上的对该第一下行资源上的通信失败的响应；The transceiver unit 820 is further configured to receive a communication failure within the time window starting from the position of the time-frequency resource used to send the downlink control channel in the n-th time unit after the first indication information is sent and / or Response information, the communication failure response information is a response carried on the second downlink resource to the communication failure on the first downlink resource;

可选地，该处理单元810，还用于根据该第三小区和/或第四小区的***参数，确定该n或者该m。Optionally, the processing unit 810 is further configured to determine the n or the m according to system parameters of the third cell and / or the fourth cell.

可选地，该收发单元820，还用于接收第三指示信息；Optionally, the transceiver unit 820 is further configured to receive third instruction information;

可选地，所述处理单元820，具体用于：根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值确定所述n或所述m；或者Optionally, the processing unit 820 is specifically configured to: determine the n or the m according to a minimum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; or

根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值确定所述n或所述m。The n or the m is determined according to a maximum value of a subcarrier interval of the second uplink resource and a maximum value of the subcarrier interval of the second downlink resource.

该处理单元810，还用于根据该第三指示信息，确定该n或者该m。The processing unit 810 is further configured to determine the n or the m according to the third instruction information.

可选地，该第三指示信息承载于DCI中，该DCI为专用于指示该装置接收该通信失败响应信息的信令。Optionally, the third indication information is carried in a DCI, and the DCI is dedicated to instruct the device to receive the communication failure response information.

可选地，该第三指示信息承载于DCI的字段中，该DCI用于上行数据或者下行数据的传输。Optionally, the third indication information is carried in a field of DCI, and the DCI is used for transmission of uplink data or downlink data.

可选地，该字段承载于该DCI中的时频资源指示字域中。Optionally, this field is carried in a time-frequency resource indicator field in the DCI.

应理解，装置800中各单元执行上述相应步骤的具体过程请参照前文中结合图5的方法实施例的描述，为了简洁，这里不加赘述。It should be understood that, for a specific process in which each unit in the device 800 executes the foregoing corresponding steps, please refer to the foregoing description of the method embodiment in conjunction with FIG.

图9示出了本申请实施例提供的通信失败恢复的装置900的示意性框图，该装置900可以对应上述方法500中描述的网络设备，也可以对应网络设备的芯片或者组件，并且，该装置900中各个模块或者单元分别可以用于执行上述方法500中网络设备所执行的各动作或处理过程，如图9所示，该通信失败恢复的装置900可以包括收发单元910和处理单元920。FIG. 9 shows a schematic block diagram of a device 900 for communication failure recovery provided by an embodiment of the present application. The device 900 may correspond to the network device described in the foregoing method 500, and may also correspond to a chip or component of the network device. Each module or unit in 900 may be used to perform each action or processing performed by the network device in the above method 500. As shown in FIG. 9, the device 900 for recovering from communication failure may include a transceiver unit 910 and a processing unit 920.

具体地，收发单元910，用于在第二上行资源上，接收终端设备发送的第一指示信息，该第一指示信息用于指示该终端设备在第一下行资源上的通信失败；Specifically, the transceiver unit 910 is configured to receive, on the second uplink resource, the first instruction information sent by the terminal device, where the first instruction information is used to indicate that the terminal device fails to communicate on the first downlink resource;

处理单元920，用于确定该终端设备在第一下行资源上的通信失败；A processing unit 920, configured to determine that the terminal device fails to communicate on the first downlink resource;

该收发单元910，还用于在接收到该第一指示信息后的第x个时间单元，和/或，第y个用于发送下行控制信道的时频资源开始的时间窗内，向该终端设备发送通信失败响应信息，该通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The transceiver unit 910 is further configured to send to the terminal the x-th time unit after receiving the first indication information, and / or, the y-th time window of the time-frequency resource used to send the downlink control channel. The device sends communication failure response information, where the communication failure response information is a response to a communication failure on the first downlink resource carried on the second downlink resource;

其中，该x为大于或者等于0的整数，该y为大于或者等于0的整数，该第二上行资源属于第三小区，该第二下行资源属于第四小区，该第三小区和该第四小区为不同的小区或者相同的小区；或者，The x is an integer greater than or equal to 0, the y is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, the third cell and the fourth cell The cells are different cells or the same cell; or

可选地，该处理单元920，还用于根据该第三小区和/或第四小区的***参数，确定该x或者该y。Optionally, the processing unit 920 is further configured to determine the x or the y according to a system parameter of the third cell and / or the fourth cell.

可选地，所述处理单元920，具体用于：根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值，确定所述x或者所述y；或者，根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值，确定所述x或者所述y。Optionally, the processing unit 920 is specifically configured to: determine the x or the y according to a minimum value of a subcarrier interval of the second uplink resource and a subcarrier interval of the second downlink resource; or , Determining the x or the y according to a maximum subcarrier interval of the second uplink resource and a maximum value of the subcarrier interval of the second downlink resource.

可选地，该收发单元910，还用于向该终端设备发送第三指示信息，该第三指示信息用于指示该终端设备接收该通信失败响应信息。Optionally, the transceiver unit 910 is further configured to send third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to receive the communication failure response information.

可选地，该收发单元910还用于发送第一参考信号的信息，该第一参考信号为信道质量大于或者等于预设门限的参考信号。Optionally, the transceiver unit 910 is further configured to send information of a first reference signal, where the first reference signal is a reference signal with a channel quality greater than or equal to a preset threshold.

可选地，该第三指示信息承载于DCI中，该DCI为专用于指示该终端设备接收该响应信息的信令。Optionally, the third indication information is carried in a DCI, and the DCI is dedicated to instruct the terminal device to receive the response information.

应理解，装置900中各单元执行上述相应步骤的具体过程请参照前文中结合图5的方法实施例的描述，为了简洁，这里不加赘述。It should be understood that, for a specific process of each unit in the device 900 performing the foregoing corresponding steps, please refer to the description of the method embodiment in conjunction with FIG. 5 in the foregoing. For brevity, details are not described herein.

在硬件实现上，上述处理单元可以为处理器或者处理电路等；收发单元可以是收发器(或者，收发电路)等，收发单元可以构成通信接口。In terms of hardware implementation, the processing unit may be a processor or a processing circuit; the transceiver unit may be a transceiver (or a transceiver circuit), etc., and the transceiver unit may constitute a communication interface.

在具体实现过程中，处理器可用于进行，例如但不限于，基带相关处理，收发器可用于进行，例如但不限于，射频收发。上述器件可以分别设置在彼此独立的芯片上，也可以至少部分的或者全部的设置在同一块芯片上。例如，处理器可以进一步划分为模拟基带处理器和数字基带处理器，其中模拟基带处理器可以与收发器集成在同一块芯片上，数字基带处理器可以设置在独立的芯片上。随着集成电路技术的不断发展，可以在同一块芯片上集成的器件越来越多，例如，数字基带处理器可以与多种应用处理器(例如但不限于图形处理器，多媒体处理器等)集成在同一块芯片之上。这样的芯片可以称为***芯片(system on chip，SOC)。将各个器件独立设置在不同的芯片上，还是整合设置在一个或者多个芯片上，往往取决于产品设计的具体需要。本申请实施例对上述器件的具体实现形式不做限定。In a specific implementation process, the processor may be used to perform, for example, but not limited to, baseband related processing, and the transceiver may be used to perform, such as, but not limited to, radio frequency transceiver. The above devices may be provided on separate chips, or at least partly or entirely on the same chip. For example, the processor may be further divided into an analog baseband processor and a digital baseband processor. The analog baseband processor and the transceiver may be integrated on the same chip, and the digital baseband processor may be provided on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, digital baseband processors can be used with multiple application processors (such as, but not limited to, graphics processors, multimedia processors, etc.) Integrated on the same chip. Such a chip can be referred to as a system chip (SOC). Whether each device is independently set on a different chip or integrated on one or more chips often depends on the specific needs of the product design. The embodiment of the present application does not limit the specific implementation form of the device.

可以理解的是，对于前述实施例中所涉及的终端设备或者网络设备可以通过具有处理器和通信接口的硬件平台执行程序指令来分别实现其在本申请前述实施例中任一设计中涉及的功能，基于此，如图10所示，本申请实施例提供了一种通信失败恢复的装置1000 的示意性框图，所述装置1000包括：It can be understood that, for the terminal device or network device involved in the foregoing embodiments, program instructions can be executed by a hardware platform having a processor and a communication interface to implement the functions involved in any of the designs in the foregoing embodiments of the present application. Based on this, as shown in FIG. 10, an embodiment of the present application provides a schematic block diagram of a device 1000 for recovering from communication failure. The device 1000 includes:

至少一个处理器1001，可选包括通信接口1002和存储器1003，该通信接口1002用于支持该装置1000和其他设备进行通信交互，该存储器1003具有程序指令；至少一个处理器1001运行所述程序指令使得本申请前述实施例任一设计中在如下任一设备上操作的功能得以实现：终端设备或者网络设备。一种可选设计中，存储器1003可用以存储实现上述设备功能所必须的程序指令或者程序执行过程中所产生的过程数据。可选的，该装置1000还可以包含内部的互联线路，以实现该至少一个处理器1001，通信接口1002以及存储器1003之间的通信交互。该至少一个处理器1001可以考虑通过专用处理芯片、处理电路、处理器或者通用芯片实现。The at least one processor 1001 may optionally include a communication interface 1002 and a memory 1003. The communication interface 1002 is configured to support the device 1000 to communicate with other devices. The memory 1003 has program instructions. At least one processor 1001 runs the program instructions The function in any one of the foregoing embodiments of the present application that operates on any of the following devices is realized: a terminal device or a network device. In an optional design, the memory 1003 may be used to store program instructions or process data generated during program execution, which are necessary to implement the functions of the device. Optionally, the device 1000 may further include internal interconnection lines to implement communication interaction between the at least one processor 1001, the communication interface 1002, and the memory 1003. The at least one processor 1001 may be implemented by a dedicated processing chip, a processing circuit, a processor, or a general-purpose chip.

可以理解的是，本申请实施例描述的各种设计涉及的方法，流程，操作或者步骤，能够以一一对应的方式，通过计算机软件，电子硬件，或者计算机软件和电子硬件的结合来一一对应实现。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，比如，考虑通用性好成本低软硬件解耦等方面，可以采纳执行程序指令的方式来实现，又比如，考虑***性能和可靠性等方面，可以采纳使用专用电路来实现。普通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，此处不做限定。It can be understood that the methods, processes, operations, or steps involved in the various designs described in the embodiments of the present application can be one-to-one corresponding through computer software, electronic hardware, or a combination of computer software and electronic hardware. Corresponding implementation. Whether these functions are performed in hardware or software depends on the specific application of the technical solution and design constraints. For example, considering the good generality and low cost, decoupling of hardware and software, etc., it can be implemented by executing program instructions. Considering aspects of system performance and reliability, you can adopt the use of dedicated circuits to achieve. Ordinary technicians can use different methods to implement the described functions for each specific application, which is not limited here.

根据本申请实施例提供的方法，本申请还提供一种计算机程序产品，该计算机程序产品包括：计算机程序代码，当该计算机程序代码在计算机上运行时，使得该计算机执行上述实施例中的方法。本申请中的各个实施例也可以互相结合。According to the method provided in the embodiment of the present application, the present application further provides a computer program product. The computer program product includes: computer program code that, when the computer program code runs on a computer, causes the computer to execute the method in the foregoing embodiment. . Various embodiments in this application can also be combined with each other.

根据本申请实施例提供的方法，本申请还提供一种计算机可读介质，该计算机可读解释存储有程序代码，当该程序代码在计算机上运行时，使得该计算机执行上述实施例中的方法。According to the method provided in the embodiment of the present application, the present application further provides a computer-readable medium, the computer-readable interpretation stores program code, and when the program code runs on the computer, the computer executes the method in the foregoing embodiment. .

根据本申请实施例提供的方法，本申请还提供一种***，其包括前述的终端设备和网络设备。According to the method provided in the embodiment of the present application, the present application further provides a system, which includes the foregoing terminal device and network device.

在本申请实施例中，应注意，本申请实施例上述的方法实施例可以应用于处理器中，或者由处理器实现。处理器可能是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门阵列(Field programmable gate array，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。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码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，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。In the embodiments of the present application, it should be noted that the foregoing method embodiments in the embodiments of the present application may be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiment may be completed by using an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed. A general-purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in combination with the embodiments of the present application may be directly implemented by a hardware decoding processor, or may be performed by using a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, and the like. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the foregoing method in combination with its hardware.

可以理解，本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory，ROM)、可编程只读存储器(programmable ROM，PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM， EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory，RAM)，其用作外部高速缓存。RAM有多种不同的类型，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM，DRAM)、同步动态随机存取存储器(synchronous DRAM，SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM，DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM，ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM，SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM，DR RAM)。It can be understood that the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrical memory Erase programmable read-only memory (EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. There are many different types of RAM, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate Synchronous dynamic random access memory (double SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM), and direct memory bus random access Fetch memory (direct RAMbus RAM, DR RAM).

应理解，在本申请的各种实施例中，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，而不应对本申请实施例的实施过程构成任何限定。It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the above processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not deal with the embodiments of this application The implementation process constitutes any limitation.

另外，本文中术语“***”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。In addition, the terms "system" and "network" are often used interchangeably herein. The term "and / or" in this document is only a kind of association relationship describing related objects, which means that there can be three kinds of relationships, for example, A and / or B can mean: A exists alone, A and B exist simultaneously, and exists alone B these three cases. In addition, the character "/" in this article generally indicates that the related objects are an "or" relationship.

本申请中出现的术语“第一”、“第二”等仅是为了区分不同的对象，“第一”、“第二”本身并不对其修饰的对象的实际顺序或功能进行限定。本申请中被描述为“示例性的”，“示例”，“例如”，“可选的设计”或者“一种设计”的任何实施例或设计方案都不应被解释为比其他实施例或设计方案更优选或更具优势。确切而言，使用这些词旨在以具体方式呈现相关概念。The terms "first" and "second" appearing in this application are only for distinguishing different objects, and "first" and "second" themselves do not limit the actual order or function of the objects they modify. Any embodiment or design described as "exemplary", "example", "for example", "optional design", or "one design" in this application should not be interpreted as being inferior to other embodiments or The design scheme is more preferred or more advantageous. Rather, these words are used to present related concepts in a concrete way.

本申请中出现的术语“上行”和“下行”，用于在特定场景描述数据/信息传输的方向，比如，“上行”方向一般是指数据/信息从终端向网络侧传输的方向，或者分布式单元向集中式单元传输的方向，“下行”方向一般是指数据/信息从网络侧向终端传输的方向，或者集中式单元向分布式单元传输的方向，可以理解，“上行”和“下行”仅用于描述数据/信息的传输方向，该数据/信息传输的具体起止的设备都不作限定。The terms "uplink" and "downlink" appearing in this application are used to describe the direction of data / information transmission in specific scenarios. For example, the direction of "uplink" generally refers to the direction or distribution of data / information from the terminal to the network side. The direction of the transmission from the centralized unit to the centralized unit. The "downlink" direction generally refers to the direction in which data / information is transmitted from the network side to the terminal, or the direction in which the centralized unit transmits to the distributed unit. It can be understood that "uplink" and "downlink" "" It is only used to describe the direction of data / information transmission, and the specific start and end devices of this data / information transmission are not limited.

在本申请中可能出现的对各种消息/信息/设备/网元/***/装置/动作/操作/流程/概念等各类客体进行了赋名，可以理解的是，这些具体的名称并不构成对相关客体的限定，所赋名称可随着场景，语境或者使用习惯等因素而变更，对本申请中技术术语的技术含义的理解，应主要从其在技术方案中所体现/执行的功能和技术效果来确定。Various objects such as various messages / information / devices / network elements / systems / devices / actions / operations / processes / concepts have been assigned names in this application. It is understandable that these specific names are not It constitutes a restriction on the related object, and the name given can be changed according to factors such as scene, context, or usage habits. The understanding of the technical meaning of the technical terms in this application should mainly be based on the functions they reflect / execute in the technical solution. And technical effects to determine.

上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品可以包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁盘)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘(solid state disk，SSD))等。In the foregoing embodiments, all or part of the implementation may be implemented by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product may include one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions according to the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be from a website site, computer, server, or data center Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber (DSL)) or wireless (such as infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, and the like that includes one or more available medium integration. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic disk), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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申请的范围。Those of ordinary skill in the art may realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

以上所述，仅为本申请的具体实施方式，但本申请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申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请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 implementation of this application, but the scope of protection of this application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application. It should be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

一种通信失败恢复的方法，其特征在于，包括：A method for recovering from a communication failure, comprising:

终端设备在第一上行资源上，向网络设备发送第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败，所述第一上行资源为用于承载信道状态信息CSI的资源；The terminal device sends first indication information to the network device on the first uplink resource, where the first indication information is used to indicate communication failure on the first downlink resource, and the first uplink resource is used to carry channel state information. CSI resources;

其中，所述第一上行资源属于第一小区，所述第一下行资源属于第二小区，所述第一小区和所述第二小区为不同的小区或者相同的小区；或者，所述第一下行资源关联的空间相关参数与所述第一上行资源关联的空间相关参数不同。The first uplink resource belongs to a first cell, the first downlink resource belongs to a second cell, and the first cell and the second cell are different cells or the same cell; or, the first cell A spatial correlation parameter associated with a downlink resource is different from a spatial correlation parameter associated with the first uplink resource.
根据权利要求1所述的方法，其特征在于，所述第一指示信息承载于所述CSI的填充比特中；或者，The method according to claim 1, wherein the first indication information is carried in a padding bit of the CSI; or,

所述第一指示信息承载于所述CSI的非零宽带幅度系数字域中；或者，The first indication information is carried in a non-zero wideband amplitude system in the CSI digital domain; or

所述CSI包括信道质量指示CQI字域，所述第一指示信息承载于所述CQI字域的状态位中。The CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.
根据权利要求1或2所述的方法，其特征在于，所述方法还包括：The method according to claim 1 or 2, further comprising:

所述终端设备在所述第一上行资源上，向所述网络设备发送第二指示信息，所述第二指示信息包括所述第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。The terminal device sends second instruction information to the network device on the first uplink resource, where the second instruction information includes identification information of the second cell, and a channel quality is greater than or equal to a first preset threshold One or more of the information of the first reference signal or the information of the second reference signal whose channel quality is less than or equal to the second preset threshold.
根据权利要求3所述的方法，其特征在于，所述第二指示信息承载于所述CSI的最低优先级内容对应的字域中。The method according to claim 3, wherein the second indication information is carried in a word field corresponding to the lowest priority content of the CSI.
根据权利要求2至4中任一项所述的方法，其特征在于，所述CQI字域包括宽带CQI字域，所述第一指示信息承载于所述宽带CQI字域的最低状态位中。The method according to any one of claims 2 to 4, wherein the CQI word field comprises a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.
根据权利要求2至4中任一项所述的方法，其特征在于，所述CQI字域包括宽带CQI字域和子带CQI字域，所述第一指示信息承载于所述宽带CQI字域和所述子带CQI字域结合的状态位中。The method according to any one of claims 2 to 4, wherein the CQI word domain comprises a wideband CQI word domain and a subband CQI word domain, and the first indication information is carried in the wideband CQI word domain and The subband CQI word field is combined in a status bit.
根据权利要求1至6中任一项所述的方法，其特征在于，所述第一下行资源为物理下行控制信道PDCCH资源。The method according to any one of claims 1 to 6, wherein the first downlink resource is a physical downlink control channel (PDCCH) resource.
根据权利要求1至7中任一项所述的方法，其特征在于，所述第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。The method according to any one of claims 1 to 7, wherein the first uplink resource is a physical uplink control channel (PUCCH) resource or a physical uplink shared channel (PUSCH) resource.
一种通信失败恢复的方法，其特征在于，包括：A method for recovering from a communication failure, comprising:

网络设备在第一上行资源上，接收终端设备发送的第一指示信息，所述第一指示信息用于指示所述终端设备在第一下行资源上的通信失败，所述第一上行资源为用于承载信道状态信息CSI的资源；The network device receives the first instruction information sent by the terminal device on the first uplink resource, where the first instruction information is used to indicate that the terminal device fails to communicate on the first downlink resource, and the first uplink resource is Resources for carrying channel state information CSI;

其中，所述第一上行资源属于第一小区，所述第一下行资源属于第二小区，所述第一小区和所述第二小区为不同的小区或者相同的小区；或者，所述第一下行资源关联的空间相关参数与所述第一上行资源关联的空间相关参数不同。The first uplink resource belongs to a first cell, the first downlink resource belongs to a second cell, and the first cell and the second cell are different cells or the same cell; or, the first cell A spatial correlation parameter associated with a downlink resource is different from a spatial correlation parameter associated with the first uplink resource.
根据权利要求9所述的方法，其特征在于，所述第一指示信息承载于所述CSI 的填充比特中；或者，The method according to claim 9, wherein the first indication information is carried in a padding bit of the CSI; or

所述第一指示信息承载于所述CSI的非零宽带幅度系数字域中；或者，The first indication information is carried in a non-zero wideband amplitude system in the CSI digital domain; or

所述CSI包括信道质量指示CQI字域，所述第一指示信息承载于所述CQI字域的状态位中。The CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.
根据权利要求9或10所述的方法，其特征在于，所述方法还包括：The method according to claim 9 or 10, further comprising:

所述网络设备在所述第一上行资源上，接收所述终端设备发送的第二指示信息，所述第二指示信息包括所述第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。On the first uplink resource, the network device receives second instruction information sent by the terminal device, where the second instruction information includes identification information of the second cell, and a channel quality is greater than or equal to a first preset One or more kinds of information of the first reference signal of the threshold or information of the second reference signal whose channel quality is less than or equal to the second preset threshold.
根据权利要求11所述的方法，其特征在于，所述第二指示信息承载于所述CSI的最低优先级内容对应的字域中。The method according to claim 11, wherein the second indication information is carried in a word field corresponding to the lowest priority content of the CSI.
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CQI字域包括宽带CQI字域，所述第一指示信息承载于所述宽带CQI字域的最低状态位中。The method according to any one of claims 10 to 12, wherein the CQI word field comprises a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.
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CQI字域包括宽带CQI字域和子带CQI字域，所述第一指示信息承载于所述宽带CQI字域和所述子带CQI字域结合的状态位中。The method according to any one of claims 10 to 12, wherein the CQI word domain comprises a wideband CQI word domain and a subband CQI word domain, and the first indication information is carried in the wideband CQI word domain and The subband CQI word field is combined in a status bit.
根据权利要求9至14中任一项所述的方法，其特征在于，所述第一下行资源为物理下行控制信道PDCCH资源。The method according to any one of claims 9 to 14, wherein the first downlink resource is a physical downlink control channel (PDCCH) resource.
根据权利要求9至15中任一项所述的方法，其特征在于，所述第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。The method according to any one of claims 9 to 15, wherein the first uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.
一种通信失败恢复的方法，其特征在于，包括：A method for recovering from a communication failure, comprising:

终端设备在第二上行资源上，向网络设备发送第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；The terminal device sends the first instruction information to the network device on the second uplink resource, where the first instruction information is used to indicate that the communication on the first downlink resource fails;

所述终端设备在发送所述第一指示信息后的第n个时间单元，和/或，第m个用于发送下行控制信道的时频资源位置开始的时间窗内，检测通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；Detecting, by the terminal device, communication failure response information within an n-th time unit after sending the first indication information, and / or, an m-th time window starting from a time-frequency resource location for sending a downlink control channel, The communication failure response information is a response to a communication failure on the first downlink resource carried on the second downlink resource;

其中，所述n为大于或者等于0的整数，所述m为大于或者等于0的整数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，The n is an integer greater than or equal to 0, the m is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or

所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同。The spatial correlation parameter associated with the second uplink resource is different from the spatial correlation parameter associated with the second downlink resource.
根据权利要求17所述的方法，其特征在于，所述方法还包括：The method according to claim 17, further comprising:

所述终端设备根据所述第三小区和/或所述第四小区的***参数确定所述n或所述m。The terminal device determines the n or the m according to a system parameter of the third cell and / or the fourth cell.
根据权利要求18所述的方法，其特征在于，所述***参数包括子载波间隔，所述终端设备根据所述第三小区和/或所述第四小区的***参数确定所述n或所述m，包括：The method according to claim 18, wherein the system parameter comprises a subcarrier interval, and the terminal device determines the n or the first device according to a system parameter of the third cell and / or the fourth cell m, including:

所述终端设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值确定所述n或所述m；或者Determining, by the terminal device, the n or the m according to the minimum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; or

所述终端设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值确定所述n或所述m；或者Determining, by the terminal device, n or m according to a maximum value of the subcarrier interval of the second uplink resource and the maximum value of the subcarrier interval of the second downlink resource; or

所述终端设备根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最小值确定所述n或所述m；或者Determining, by the terminal device, n or m according to a minimum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell; or

所述终端设备根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最大值确定所述n或所述m。The terminal device determines the n or the m according to a maximum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell.
根据权利要求17所述的方法，其特征在于，所述方法还包括：The method according to claim 17, further comprising:

所述终端设备接收第三指示信息；Receiving, by the terminal device, third indication information;

所述终端设备根据所述第三指示信息，确定所述n或所述m。The terminal device determines the n or the m according to the third instruction information.
根据权利要求20所述的方法，其特征在于，所述第三指示信息包括用于指示接收所述通信失败响应信息的起始时刻的信息、所述第四小区的标识信息、用于接收所述通信失败响应信息的控制资源集合的标识信息或者用于接收所述通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。The method according to claim 20, wherein the third indication information comprises information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, and used to receive all the communication failure response information. One or more of the identification information of the control resource set of the communication failure response information or the identification information of the search space set for receiving the communication failure response information.
根据权利要求20或21所述的方法，其特征在于，所述第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。The method according to claim 20 or 21, wherein the third indication information is carried in one or more of downlink control information DCI, media access control layer control element MAC, CE, or radio resource control RRC signaling. Species.
根据权利要求22所述的方法，其特征在于，所述第三指示信息承载于DCI中，所述DCI为专用于指示所述终端设备接收所述通信失败响应信息的信令。The method according to claim 22, wherein the third indication information is carried in a DCI, and the DCI is dedicated to instruct the terminal device to receive the communication failure response information.
根据权利要求22所述的方法，其特征在于，所述第三指示信息承载于DCI的字段中，所述DCI用于上行数据或者下行数据的传输。The method according to claim 22, wherein the third indication information is carried in a field of DCI, and the DCI is used for transmission of uplink data or downlink data.
根据权利要求24所述的方法，其特征在于，所述字段承载于所述DCI中的时频资源指示字域中。The method according to claim 24, wherein the field is carried in a time-frequency resource indicator field in the DCI.
一种通信失败的方法，其特征在于，包括：A method for communication failure, comprising:

网络设备在第二上行资源上，接收终端设备发送的第一指示信息，所述第一指示信息用于指示所述第一下行资源上的通信失败；The network device receives, on the second uplink resource, the first instruction information sent by the terminal device, where the first instruction information is used to indicate that the communication on the first downlink resource fails;

所述网络设备在接收到所述第一指示信息后的第x个时间单元，和/或，第y个用于发送下行控制信道的时频资源开始的时间窗内，向所述终端设备发送通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；Sending, by the network device, to the terminal device within the x-th time unit after receiving the first indication information, and / or, the y-th time window of the time-frequency resource used to send the downlink control channel Communication failure response information, where the communication failure response information is a response to a communication failure on the first downlink resource carried on the second downlink resource;

其中，所述x为大于或者等于0的整数，所述y为大于或者等于0的整数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，The x is an integer greater than or equal to 0, the y is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or

所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同。The spatial correlation parameter associated with the second uplink resource is different from the spatial correlation parameter associated with the second downlink resource.
根据权利要求26所述的方法，其特征在于，所述方法还包括：The method according to claim 26, further comprising:

所述网络设备根据所述第三小区和/或第四小区的***参数，确定所述x或者所述y。The network device determines the x or the y according to a system parameter of the third cell and / or the fourth cell.
根据权利要求27所述的方法，其特征在于，所述***参数包括子载波间隔，所述网络设备根据所述第三小区和/或第四小区的***参数，确定所述x或者所述y，包括：The method according to claim 27, wherein the system parameter includes a subcarrier interval, and the network device determines the x or the y according to a system parameter of the third cell and / or the fourth cell ,include:

所述网络设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值，确定所述x或者所述y；或者Determining, by the network device, the x or the y according to a minimum value of a subcarrier interval of the second uplink resource and a subcarrier interval of the second downlink resource; or

所述网络设备根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值，确定所述x或者所述y；或者Determining, by the network device, the x or the y according to a maximum value of a subcarrier interval of the second uplink resource and a maximum value of the subcarrier interval of the second downlink resource; or

所述网络设备根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最小值确定所述x或者所述y；或者Determining, by the network device, the x or the y according to a minimum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell; or

所述网络设备根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最大值确定所述x或者所述y。Determining, by the network device, the x or the y according to a maximum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell.
根据权利要求26所述的方法，其特征在于，所述方法还包括：The method according to claim 26, further comprising:

所述网络设备向所述终端设备发送第三指示信息，所述第三指示信息用于指示所述终端设备接收所述通信失败响应信息。The network device sends third instruction information to the terminal device, where the third instruction information is used to instruct the terminal device to receive the communication failure response information.
根据权利要求29所述的方法，其特征在于，所述第三指示信息包括用于指示接收所述通信失败响应信息的起始时刻的信息、所述第四小区的标识信息、用于接收所述通信失败响应信息的控制资源集合的标识信息或者用于接收所述通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。The method according to claim 29, wherein the third indication information includes information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, and used to receive all the communication failure response information. One or more of the identification information of the control resource set of the communication failure response information or the identification information of the search space set for receiving the communication failure response information.
根据权利要求26至30中任一项所述的方法，其特征在于，所述方法还包括：The method according to any one of claims 26 to 30, wherein the method further comprises:

所述网络设备发送第一参考信号的信息，所述第一参考信号为信道质量大于或者等于预设门限的参考信号。The network device sends information of a first reference signal, where the first reference signal is a reference signal with a channel quality greater than or equal to a preset threshold.
根据权利要求29或者30所述的方法，其特征在于，所述第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。The method according to claim 29 or 30, wherein the third indication information is carried in one or more of downlink control information DCI, media access control layer control element MAC CE, or radio resource control RRC signaling. Species.
根据权利要求32所述的方法，其特征在于，所述第三指示信息承载于DCI中，所述DCI为专用于指示所述终端设备接收所述响应信息的信令。The method according to claim 32, wherein the third indication information is carried in a DCI, and the DCI is a signaling dedicated to instruct the terminal device to receive the response information.
根据权利要求32所述的方法，其特征在于，所述第三指示信息承载于DCI的字段中，所述DCI用于上行数据或者下行数据的传输。The method according to claim 32, wherein the third indication information is carried in a field of DCI, and the DCI is used for transmission of uplink data or downlink data.
根据权利要求34所述的方法，其特征在于，所述字段承载于所述DCI中的时频资源指示字域中。The method according to claim 34, wherein the field is carried in a time-frequency resource indicator field in the DCI.
一种通信失败恢复的装置，其特征在于，包括：A device for recovering from communication failure, which comprises:

处理单元，用于确定在第一下行资源上通信失败；A processing unit, configured to determine that communication fails on the first downlink resource;

收发单元，用于在第一上行资源上，向网络设备发送第一指示信息，所述第一指示信息用于指示所述第一下行资源上的通信失败，所述第一上行资源为用于承载信道状态信息CSI的资源；The transceiver unit is configured to send first indication information to the network device on the first uplink resource, where the first indication information is used to indicate that the communication on the first downlink resource has failed, and the first uplink resource is for use. Resources for carrying channel state information CSI;

其中，所述第一上行资源属于第一小区，所述第一下行资源属于第二小区，所述第一小区和所述第二小区为不同的小区或者相同的小区；或者，所述第一下行资源关联的空间相关参数与所述第一上行资源关联的空间相关参数不同。The first uplink resource belongs to a first cell, the first downlink resource belongs to a second cell, and the first cell and the second cell are different cells or the same cell; or, the first cell A spatial correlation parameter associated with a downlink resource is different from a spatial correlation parameter associated with the first uplink resource.
根据权利要求36所述的装置，其特征在于，所述第一指示信息承载于所述CSI的填充比特中；或者，The apparatus according to claim 36, wherein the first indication information is carried in a padding bit of the CSI; or

所述第一指示信息承载于所述CSI的非零宽带幅度系数字域中；或者，The first indication information is carried in a non-zero wideband amplitude system in the CSI digital domain; or

所述CSI包括信道质量指示CQI字域，所述第一指示信息承载于所述CQI字域的状态位中。The CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.
根据权利要求36或37所述的装置，其特征在于，所述收发单元，还用于在所述第一上行资源上，向所述网络设备发送第二指示信息，所述第二指示信息包括所述第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。The apparatus according to claim 36 or 37, wherein the transceiver unit is further configured to send second instruction information to the network device on the first uplink resource, and the second instruction information includes One or more of identification information of the second cell, information of a first reference signal with channel quality greater than or equal to a first preset threshold, or information of a second reference signal with channel quality less than or equal to a second preset threshold Species.
根据权利要求38所述的装置，其特征在于，所述第二指示信息承载于所述CSI的最低优先级内容对应的字域中。The apparatus according to claim 38, wherein the second indication information is carried in a word field corresponding to the lowest priority content of the CSI.
根据权利要求37至39中任一项所述的装置，其特征在于，所述CQI字域包括宽带CQI字域，所述第一指示信息承载于所述宽带CQI字域的最低状态位中。The apparatus according to any one of claims 37 to 39, wherein the CQI word field comprises a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.
根据权利要求37至39中任一项所述的装置，其特征在于，所述CQI字域包括宽带CQI字域和子带CQI字域，所述第一指示信息承载于所述宽带CQI字域和所述子带CQI字域结合的状态位中。The apparatus according to any one of claims 37 to 39, wherein the CQI word domain comprises a wideband CQI word domain and a subband CQI word domain, and the first indication information is carried in the wideband CQI word domain and The subband CQI word field is combined in a status bit.
根据权利要求36至41中任一项所述的装置，其特征在于，所述第一下行资源为物理下行控制信道PDCCH资源。The apparatus according to any one of claims 36 to 41, wherein the first downlink resource is a physical downlink control channel (PDCCH) resource.
根据权利要求36至42中任一项所述的装置，其特征在于，所述第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。The apparatus according to any one of claims 36 to 42, wherein the first uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.
一种通信失败恢复的装置，其特征在于，包括：A device for recovering from communication failure, which comprises:

收发单元，用于在第一上行资源上，接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败，所述第一上行资源为用于承载信道状态信息CSI的资源；The transceiver unit is configured to receive, on a first uplink resource, first indication information sent by the terminal device, where the first indication information is used to indicate a communication failure on the first downlink resource, and the first uplink resource is used for Resources carrying channel state information CSI;

处理单元，用于确定所述第一下行资源上通信失败；A processing unit, configured to determine that communication on the first downlink resource fails;

其中，所述第一上行资源属于第一小区，所述第一下行资源属于第二小区，所述第一小区和所述第二小区为不同的小区或者相同的小区；或者，所述第一下行资源关联的空间相关参数与所述第一上行资源关联的空间相关参数不同。The first uplink resource belongs to a first cell, the first downlink resource belongs to a second cell, and the first cell and the second cell are different cells or the same cell; or, the first cell A spatial correlation parameter associated with a downlink resource is different from a spatial correlation parameter associated with the first uplink resource.
根据权利要求44所述的装置，其特征在于，所述第一指示信息承载于所述CSI的填充比特中；或者，The apparatus according to claim 44, wherein the first indication information is carried in a padding bit of the CSI; or,

所述第一指示信息承载于所述CSI的非零宽带幅度系数字域中；或者，The first indication information is carried in a non-zero wideband amplitude system in the CSI digital domain; or

所述CSI包括信道质量指示CQI字域，所述第一指示信息承载于所述CQI字域的状态位中。The CSI includes a channel quality indication CQI word field, and the first indication information is carried in a status bit of the CQI word field.
根据权利要求44或45所述的装置，其特征在于，所述收发单元，还用于在所述第一上行资源上，接收所述终端设备发送的第二指示信息，所述第二指示信息包括所述第二小区的标识信息、信道质量大于或者等于第一预设门限的第一参考信号的信息或者信道质量小于或者等于第二预设门限的第二参考信号的信息中的一种或者多种。The apparatus according to claim 44 or 45, wherein the transceiver unit is further configured to receive, on the first uplink resource, second instruction information sent by the terminal device, and the second instruction information Including one of identification information of the second cell, information of a first reference signal with channel quality greater than or equal to a first preset threshold, or information of a second reference signal with channel quality less than or equal to a second preset threshold, or Multiple.
根据权利要求46所述的装置，其特征在于，所述第二指示信息承载于所述CSI的最低优先级内容对应的字域中。The device according to claim 46, wherein the second indication information is carried in a word field corresponding to the lowest priority content of the CSI.
根据权利要求45至47中任一项所述的装置，其特征在于，所述CQI字域包括宽带CQI字域，所述第一指示信息承载于所述宽带CQI字域的最低状态位中。The apparatus according to any one of claims 45 to 47, wherein the CQI word field comprises a wideband CQI word field, and the first indication information is carried in a lowest status bit of the wideband CQI word field.
根据权利要求45至47中任一项所述的装置，其特征在于，所述CQI字域包括宽带CQI字域和子带CQI字域，所述第一指示信息承载于所述宽带CQI字域和所述子带CQI字域结合的状态位中。The apparatus according to any one of claims 45 to 47, wherein the CQI word domain comprises a wideband CQI word domain and a subband CQI word domain, and the first indication information is carried in the wideband CQI word domain and The subband CQI word field is combined in a status bit.
根据权利要求44至49中任一项所述的装置，其特征在于，所述第一下行资源为物理下行控制信道PDCCH资源。The apparatus according to any one of claims 44 to 49, wherein the first downlink resource is a physical downlink control channel (PDCCH) resource.
根据权利要求44至49中任一项所述的装置，其特征在于，所述第一上行资源为物理上行控制信道PUCCH资源或者物理上行共享信道PUSCH资源。The apparatus according to any one of claims 44 to 49, wherein the first uplink resource is a physical uplink control channel PUCCH resource or a physical uplink shared channel PUSCH resource.
一种通信失败恢复的装置，其特征在于，包括：A device for recovering from communication failure, which comprises:

处理单元，用于确定在第一下行资源上通信失败；A processing unit, configured to determine that communication fails on the first downlink resource;

收发单元，用于在第二上行资源上，向网络设备发送第一指示信息，所述第一指示信息用于指示所述装置在所述第一下行资源上的通信失败；A transceiver unit, configured to send first indication information to a network device on a second uplink resource, where the first indication information is used to indicate that the device fails to communicate on the first downlink resource;

所述收发单元，还用于在发送所述第一指示信息后的第n个时间单元,和/或，第m个用于发送下行控制信道的时频资源位置开始的时间窗内，检测通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The transceiving unit is further configured to detect communication within a time window starting from the position of the time-frequency resource used to transmit the downlink control channel after the nth time unit after the first indication information is transmitted. Failure response information, where the communication failure response information is a response to a communication failure on the first downlink resource carried on the second downlink resource;

其中，所述n为大于或者等于0的整数，所述m为大于或者等于0的整数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，The n is an integer greater than or equal to 0, the m is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or

所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同。The spatial correlation parameter associated with the second uplink resource is different from the spatial correlation parameter associated with the second downlink resource.
根据权利要求52所述的装置，其特征在于，所述***参数包括子载波间隔，所述处理单元，还用于根据所述第三小区和/或所述第四小区的***参数确定所述n或所述m。The apparatus according to claim 52, wherein the system parameter includes a subcarrier interval, and the processing unit is further configured to determine the system parameter according to the system parameters of the third cell and / or the fourth cell n or the m.
根据权利要求53所述的装置，其特征在于，所述处理单元，具体用于：The apparatus according to claim 53, wherein the processing unit is specifically configured to:

根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值确定所述n或所述m；或者Determine the n or the m according to the minimum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; or

根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值确定所述n或所述m；或者Determining the n or the m according to the maximum value of the subcarrier interval of the second uplink resource and the maximum value of the subcarrier interval of the second downlink resource; or

根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最小值确定所述n或所述m；或者Determining the n or the m according to a minimum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell; or

根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最大值确定所述n或所述m。The n or m is determined according to a maximum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell.
根据权利要求53所述的装置，其特征在于，所述收发单元，还用于接收第三指示信息；The device according to claim 53, wherein the transceiver unit is further configured to receive third instruction information;

所述处理单元，还用于根据所述第三指示信息，确定所述n或者所述m。The processing unit is further configured to determine the n or the m according to the third instruction information.
根据权利要求55所述的装置，其特征在于，所述第三指示信息包括用于指示接收所述通信失败响应信息的起始时刻的信息、所述第四小区的标识信息、用于接收所述通信失败响应信息的控制资源集合的标识信息或者用于接收所述通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。The apparatus according to claim 55, wherein the third indication information includes information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, and used to receive all the communication failure response information. One or more of the identification information of the control resource set of the communication failure response information or the identification information of the search space set for receiving the communication failure response information.
根据权利要求55或者56所述的装置，其特征在于，所述第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。The device according to claim 55 or 56, wherein the third indication information is carried in one or more of downlink control information DCI, media access control layer control element MAC CE, or radio resource control RRC signaling. Species.
根据权利要求57所述的装置，其特征在于，所述第三指示信息承载于DCI中，所述DCI为专用于指示所述装置接收所述通信失败响应信息的信令。The apparatus according to claim 57, wherein the third indication information is carried in a DCI, and the DCI is a signaling dedicated to instruct the apparatus to receive the communication failure response information.
根据权利要求57所述的装置，其特征在于，所述第三指示信息承载于DCI的字段中，所述DCI用于上行数据或者下行数据的传输。The apparatus according to claim 57, wherein the third indication information is carried in a DCI field, and the DCI is used for transmission of uplink data or downlink data.
根据权利要求59所述的装置，其特征在于，所述字段承载于所述DCI中的时频资源指示字域中。The apparatus according to claim 59, wherein the field is carried in a time-frequency resource indicator field in the DCI.
一种通信失败恢复的装置，其特征在于，包括：A device for recovering from communication failure, which comprises:

收发单元，用于在第二上行资源上，接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；The transceiver unit is configured to receive, on the second uplink resource, the first instruction information sent by the terminal device, where the first instruction information is used to indicate that the communication on the first downlink resource has failed;

处理单元，用于确定所述第一下行资源上通信失败；A processing unit, configured to determine that communication on the first downlink resource fails;

所述收发单元，还用于在接收到所述第一指示信息后的第x个时间单元，和/或，第y个用于发送下行控制信道的时频资源开始的时间窗内，向所述终端设备发送通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The transceiving unit is further configured to: within the time window of the start of the time-frequency resource used to send the downlink control channel to the xth time unit after receiving the first indication information, and The terminal device sends communication failure response information, where the communication failure response information is a response to a communication failure on the first downlink resource carried on a second downlink resource;

其中，所述x为大于或者等于0的整数，所述y为大于或者等于0的整数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，The x is an integer greater than or equal to 0, the y is an integer greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or

所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同。The spatial correlation parameter associated with the second uplink resource is different from the spatial correlation parameter associated with the second downlink resource.
根据权利要求61所述的装置，其特征在于，所述处理单元，还用于根据所述第三小区和/或第四小区的***参数，确定所述x或者所述y。The apparatus according to claim 61, wherein the processing unit is further configured to determine the x or the y according to a system parameter of the third cell and / or the fourth cell.
根据权利要求62所述的装置，其特征在于，所述***参数包括子载波间隔，所述处理单元，具体用于：The apparatus according to claim 62, wherein the system parameter includes a subcarrier interval, and the processing unit is specifically configured to:

根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最小值，确定所述x或者所述y；或者Determine the x or the y according to the minimum value of the subcarrier interval of the second uplink resource and the subcarrier interval of the second downlink resource; or

根据所述第二上行资源的子载波间隔与所述第二下行资源的子载波间隔的最大值，确定所述x或者所述y；或者Determine the x or the y according to the maximum subcarrier interval of the second uplink resource and the maximum subcarrier interval of the second downlink resource; or

根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最小值确定所述x或者所述y；或者Determining the x or the y according to a minimum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell; or

根据所述第三小区的上行载波的子载波间隔与所述第四小区的下行载波的子载波间隔的最大值确定所述x或者所述y。The x or the y is determined according to a maximum value of a subcarrier interval of an uplink carrier of the third cell and a subcarrier interval of a downlink carrier of the fourth cell.
根据权利要求62所述的装置，其特征在于，所述收发单元，还用于向所述终端设备发送第三指示信息，所述第三指示信息用于指示所述终端设备接收所述通信失败响应信息。The apparatus according to claim 62, wherein the transceiver unit is further configured to send third instruction information to the terminal device, and the third instruction information is used to instruct the terminal device to fail to receive the communication Response message.
根据权利要求64所述的装置，其特征在于，所述第三指示信息包括用于指示接收所述通信失败响应信息的起始时刻的信息、所述第四小区的标识信息、用于接收所述通信失败响应信息的控制资源集合的标识信息或者用于接收所述通信失败响应信息的搜索空间集合的标识信息中的一种或者多种。The apparatus according to claim 64, wherein the third indication information includes information used to indicate a start time of receiving the communication failure response information, identification information of the fourth cell, and used to receive all the communication failure response information. One or more of the identification information of the control resource set of the communication failure response information or the identification information of the search space set for receiving the communication failure response information.
根据权利要求62至65中任一项所述的装置，其特征在于，所述收发单元，还用于发送第一参考信号的信息，所述第一参考信号为信道质量大于或者等于预设门限的参考信号。The device according to any one of claims 62 to 65, wherein the transceiver unit is further configured to send information of a first reference signal, and the first reference signal is that a channel quality is greater than or equal to a preset threshold Reference signal.
根据权利要求64或者65所述的装置，其特征在于，所述第三指示信息承载于下行控制信息DCI、媒体接入控制层控制元素MAC CE或者无线资源控制RRC信令中的一种或者多种。The apparatus according to claim 64 or 65, wherein the third indication information is carried in one or more of downlink control information DCI, media access control layer control element MAC CE, or radio resource control RRC signaling. Species.
根据权利要求67所述的装置，其特征在于，所述第三指示信息承载于DCI中，所述DCI为专用于指示所述终端设备接收所述响应信息的信令。The apparatus according to claim 67, wherein the third indication information is carried in a DCI, and the DCI is a signaling dedicated to instruct the terminal device to receive the response information.
根据权利要求67所述的装置，其特征在于，所述第三指示信息承载于DCI的字段中，所述DCI用于上行数据或者下行数据的传输。The apparatus according to claim 67, wherein the third indication information is carried in a field of DCI, and the DCI is used for transmission of uplink data or downlink data.
根据权利要求69所述的装置，其特征在于，所述字段承载于所述DCI中的时频资源指示字域中。The apparatus according to claim 69, wherein the field is carried in a time-frequency resource indicator field in the DCI.
一种通信失败恢复的方法，其特征在于，包括：A method for recovering from a communication failure, comprising:

终端设备在第二上行资源上，在第p个时间单元向网络设备发送第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；The terminal device sends the first instruction information to the network device on the second uplink resource at the p-th time unit, where the first instruction information is used to indicate that the communication on the first downlink resource has failed;

所述终端设备在第q个时间单元或第q个时间单元开始的时间窗内，检测通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；Detecting, by the terminal device, communication failure response information within a time window starting at the qth time unit or the qth time unit, where the communication failure response information is a pair of first downlinks carried on a second downlink resource; Response to communication failure on the resource;

其中，所述p为大于或者等于0的数，所述q为大于或者等于0的数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同；The p is a number greater than or equal to 0, the q is a number greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or, the spatial related parameters associated with the second uplink resource are different from the spatial related parameters associated with the second downlink resource;

所述第p个时间单元为根据所述第三小区的***参数和/或所述第四小区的***参数确定的时间单元；The p-th time unit is a time unit determined according to a system parameter of the third cell and / or a system parameter of the fourth cell;

所述第q个时间单元为根据所述p，和/或，所述第三小区的***参数，和/或，所述第四小区的***参数确定的时间单元。The q-th time unit is a time unit determined according to the p, and / or, a system parameter of the third cell, and / or, a system parameter of the fourth cell.
根据权利要求71所述的方法，其特征在于，所述p个时间单元为根据所述第三小区的上行载波的***参数确定的时间单元；或者The method according to claim 71, wherein the p time units are time units determined according to a system parameter of an uplink carrier of the third cell; or

所述p个时间单元为根据所述第二上行资源的***参数确定的时间单元；或者The p time units are time units determined according to a system parameter of the second uplink resource; or

所述p时间单元为根据所述第三小区的第三上行资源的***参数确定的时间单元；The p time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell;

所述p时间单元为根据所述第三小区的所有上行资源的中***参数最小的上行资源的***参数确定的时间单元。The p time unit is a time unit determined according to a system parameter of an uplink resource with a minimum system parameter among all uplink resources of the third cell.
根据权利要求71或72所述的方法，其特征在于，所述第q个时间单元为根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定的时间单元；或者The method according to claim 71 or 72, wherein the qth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述第q个时间单元为根据所述第二上行资源的***参数与第二下行资源的***参数确定的时间单元；或者The qth time unit is a time unit determined according to the system parameter of the second uplink resource and the system parameter of the second downlink resource; or

所述第q个时间单元根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定的时间单元；或者A time unit determined by the qth time unit according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述第q个时间单元为根据所述第三小区的上行载波的***参数、所述第四小区的下行载波的***参数和所述p确定的时间单元；或者The qth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell, a system parameter of a downlink carrier of the fourth cell, and the p; or

所述第q个时间单元为根据所述第二上行资源的***参数、第二下行资源的***参数和所述p确定的时间单元；或者The qth time unit is a time unit determined according to the system parameter of the second uplink resource, the system parameter of the second downlink resource, and the p; or

所述第q个时间单元为根据所述第三小区的第三上行资源的***参数、第四小区的第三下行资源的***参数和所述p确定的时间单元。The qth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell, a system parameter of a third downlink resource of the fourth cell, and p.
根据权利要求73所述的方法，其特征在于，所述q为通过公式(1)、公式(2)、公式(3)、公式(4)或公式(5)中的任一个公式确定的；The method according to claim 73, wherein the q is determined by using any one of formula (1), formula (2), formula (3), formula (4), or formula (5);

其中，
为下取整运算，
为上取整运算；所述K为大于或等于0的整数；所述μ1是第三小区的上行载波的***参数，或者，μ1是第二上行资源的***参数，或者，μ1是第三小区的第三上行资源的***参数；μ2是第四小区的下行载波的***参数，或者，μ2是第四小区的第二下行资源的***参数；或者，μ2是第四小区的第三下行资源的***参数。 among them,
For rounding down operations,
Is a round-up operation; the K is an integer greater than or equal to 0; the μ1 is a system parameter of an uplink carrier of a third cell, or μ1 is a system parameter of a second uplink resource, or μ1 is a third cell The system parameter of the third uplink resource of μ3; μ2 is the system parameter of the downlink carrier of the fourth cell, or μ2 is the system parameter of the second downlink resource of the fourth cell; or μ2 is the System parameters.
一种通信失败恢复的方法，其特征在于，包括：A method for recovering from a communication failure, comprising:

网络设备在第二上行资源上，在第t个时间单元向接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；The first indication information sent by the network device to the receiving terminal device at the t-th time unit on the second uplink resource, where the first indication information is used to indicate that the communication on the first downlink resource fails;

所述网络设备在第s个时间单元或第s个时间单元开始的时间窗内，向所述终端设备发送通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The network device sends a communication failure response message to the terminal device within the s time unit or a time window starting from the s time unit, and the communication failure response information is an address information carried on a second downlink resource. A response to a communication failure on the first downlink resource;

其中，所述t为大于或者等于0的数，所述s为大于或者等于0的数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同；The t is a number greater than or equal to 0, the s is a number greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or, the spatial related parameters associated with the second uplink resource are different from the spatial related parameters associated with the second downlink resource;

所述第t个时间单元为根据所述第三小区的***参数和/或所述第四小区的***参数确定的时间单元；The t-th time unit is a time unit determined according to a system parameter of the third cell and / or a system parameter of the fourth cell;

所述第s个时间单元为根据所述t，和/或，所述第三小区的***参数，和/或，所述第四小区的***参数确定的时间单元。The sth time unit is a time unit determined according to t, and / or, a system parameter of the third cell, and / or, a system parameter of the fourth cell.
根据权利要求75所述的方法，其特征在于，所述t个时间单元为根据所述第三小区的上行载波的***参数确定的时间单元；或者The method according to claim 75, wherein the t time units are time units determined according to a system parameter of an uplink carrier of the third cell; or

所述t个时间单元为根据所述第二上行资源的***参数确定的时间单元；或者The t time units are time units determined according to a system parameter of the second uplink resource; or

所述t时间单元为根据所述第三小区的第三上行资源的***参数确定的时间单元；The t time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell;

所述t时间单元为根据所述第三小区的所有上行资源的中***参数最小的上行资源的 ***参数确定的时间单元。The t time unit is a time unit determined according to a system parameter of an uplink resource with a minimum system parameter among all uplink resources of the third cell.
根据权利要求75或76所述的方法，其特征在于，所述第s个时间单元为根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定的时间单元；或者The method according to claim 75 or 76, wherein the sth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述第s个时间单元为根据所述第二上行资源的***参数与第二下行资源的***参数确定的时间单元；或者The sth time unit is a time unit determined according to the system parameter of the second uplink resource and the system parameter of the second downlink resource; or

所述第s个时间单元根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定的时间单元；或者The sth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述第s个时间单元为根据所述第三小区的上行载波的***参数、所述第四小区的下行载波的***参数和所述t确定的时间单元；或者The sth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell, a system parameter of a downlink carrier of the fourth cell, and t; or

所述第s个时间单元为根据所述第二上行资源的***参数、第二下行资源的***参数和所述t确定的时间单元；或者The sth time unit is a time unit determined according to the system parameter of the second uplink resource, the system parameter of the second downlink resource, and t; or

所述第s个时间单元为根据所述第三小区的第三上行资源的***参数、第四小区的第三下行资源的***参数和所述t确定的时间单元。The sth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell, a system parameter of a third downlink resource of the fourth cell, and t.
根据权利要求77所述的方法，其特征在于，所述s为通过公式(6)、公式(7)、公式(8)、公式(9)或公式(10)中的任一个公式确定的；The method according to claim 77, wherein the s is determined by using any one of formula (6), formula (7), formula (8), formula (9), or formula (10);

其中，
为下取整运算，
为上取整运算；所述L为大于或等于0的整数；所述μ1是第三小区的上行载波的***参数，或者，μ1是第二上行资源的***参数，或者，μ1是第三小区的第三上行资源的***参数；μ2是第四小区的下行载波的***参数，或者，μ2是第四小区的第二下行资源的***参数；或者，μ2是第四小区的第三下行资源的***参数。 among them,
For rounding down operations,
Is a round-up operation; the L is an integer greater than or equal to 0; the μ1 is a system parameter of an uplink carrier of a third cell, or μ1 is a system parameter of a second uplink resource, or μ1 is a third cell The system parameter of the third uplink resource of μ3; μ2 is the system parameter of the downlink carrier of the fourth cell, or μ2 is the system parameter of the second downlink resource of the fourth cell; or μ2 is the third downlink resource of the fourth cell. System parameters.
一种通信失败恢复的装置，其特征在于，包括：A device for recovering from communication failure, which comprises:

收发单元，用于在第二上行资源上，在第p个时间单元向网络设备发送第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；The transceiver unit is configured to send the first instruction information to the network device on the second uplink resource at the p-th time unit, where the first instruction information is used to indicate that the communication on the first downlink resource has failed;

所述收发单元还用于在第q个时间单元或第q个时间单元开始的时间窗内，检测通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The transceiving unit is further configured to detect communication failure response information within a time window starting at the qth time unit or the qth time unit, where the communication failure response information is a response to the first downlink resource carried on the second downlink resource. A response to a communication failure on the downlink resource;

其中，所述p为大于或者等于0的数，所述q为大于或者等于0的数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同；The p is a number greater than or equal to 0, the q is a number greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or, the spatial related parameters associated with the second uplink resource are different from the spatial related parameters associated with the second downlink resource;

所述第p个时间单元为根据所述第三小区的***参数和/或所述第四小区的***参数确定的时间单元；The p-th time unit is a time unit determined according to a system parameter of the third cell and / or a system parameter of the fourth cell;

所述第q个时间单元为根据所述p，和/或，所述第三小区的***参数，和/或，所述第四小区的***参数确定的时间单元。The q-th time unit is a time unit determined according to the p, and / or, a system parameter of the third cell, and / or, a system parameter of the fourth cell.
根据权利要求79所述的装置，其特征在于，所述p个时间单元为根据所述第三小区的上行载波的***参数确定的时间单元；或者The apparatus according to claim 79, wherein the p time units are time units determined according to a system parameter of an uplink carrier of the third cell; or

所述p个时间单元为根据所述第二上行资源的***参数确定的时间单元；或者The p time units are time units determined according to a system parameter of the second uplink resource; or

所述p时间单元为根据所述第三小区的第三上行资源的***参数确定的时间单元；The p time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell;

所述p时间单元为根据所述第三小区的所有上行资源的中***参数最小的上行资源的***参数确定的时间单元。The p time unit is a time unit determined according to a system parameter of an uplink resource with a minimum system parameter among all uplink resources of the third cell.
根据权利要求79或80所述的装置，其特征在于，所述第q个时间单元为根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定的时间单元；或者The apparatus according to claim 79 or 80, wherein the qth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述第q个时间单元为根据所述第二上行资源的***参数与第二下行资源的***参数确定的时间单元；或者The qth time unit is a time unit determined according to the system parameter of the second uplink resource and the system parameter of the second downlink resource; or

所述第q个时间单元根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定的时间单元；或者A time unit determined by the qth time unit according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述第q个时间单元为根据所述第三小区的上行载波的***参数、所述第四小区的下行载波的***参数和所述p确定的时间单元；或者The qth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell, a system parameter of a downlink carrier of the fourth cell, and the p; or

所述第q个时间单元为根据所述第二上行资源的***参数、第二下行资源的***参数和所述p确定的时间单元；或者The qth time unit is a time unit determined according to the system parameter of the second uplink resource, the system parameter of the second downlink resource, and the p; or

所述第q个时间单元为根据所述第三小区的第三上行资源的***参数、第四小区的第三下行资源的***参数和所述p确定的时间单元。The qth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell, a system parameter of a third downlink resource of the fourth cell, and p.
根据权利要求81所述的装置，其特征在于，所述q为通过公式(1)、公式(2)、公式(3)、公式(4)或公式(5)中的任一个公式确定的；The apparatus according to claim 81, wherein the q is determined by using any one of formula (1), formula (2), formula (3), formula (4), or formula (5);

其中，
为下取整运算，
为上取整运算；所述K为大于或等于0的整数；所述μ1 是第三小区的上行载波的***参数，或者，μ1是第二上行资源的***参数，或者，μ1是第三小区的第三上行资源的***参数；μ2是第四小区的下行载波的***参数，或者，μ2是第四小区的第二下行资源的***参数；或者，μ2是第四小区的第三下行资源的***参数。 among them,
For rounding down operations,
Is a round-up operation; K is an integer greater than or equal to 0; μ1 is a system parameter of an uplink carrier of a third cell, or μ1 is a system parameter of a second uplink resource, or μ1 is a third cell The system parameter of the third uplink resource of μ3; μ2 is the system parameter of the downlink carrier of the fourth cell, or μ2 is the system parameter of the second downlink resource of the fourth cell; or μ2 is the third downlink resource of the fourth cell. System parameters.
一种通信失败恢复的装置，其特征在于，包括：A device for recovering from communication failure, which comprises:

收发单元，用于在第二上行资源上，在第t个时间单元向接收终端设备发送的第一指示信息，所述第一指示信息用于指示第一下行资源上的通信失败；A transceiver unit, configured to: on the second uplink resource, send first instruction information to the receiving terminal device at a t-th time unit, where the first instruction information is used to indicate that the communication on the first downlink resource fails;

所述收发单元还用于在第s个时间单元或第s个时间单元开始的时间窗内，向所述终端设备发送通信失败响应信息，所述通信失败响应信息为承载在第二下行资源上的对所述第一下行资源上的通信失败的响应；The transceiver unit is further configured to send communication failure response information to the terminal device within a time window starting from the sth time unit or the sth time unit, where the communication failure response information is carried on a second downlink resource A response to a communication failure on the first downlink resource;

其中，所述t为大于或者等于0的数，所述s为大于或者等于0的数，所述第二上行资源属于第三小区，所述第二下行资源属于第四小区，所述第三小区和所述第四小区为不同的小区或者相同的小区；或者，所述第二上行资源关联的空间相关参数与所述第二下行资源关联的空间相关参数不同；The t is a number greater than or equal to 0, the s is a number greater than or equal to 0, the second uplink resource belongs to a third cell, the second downlink resource belongs to a fourth cell, and the third The cell and the fourth cell are different cells or the same cell; or, the spatial related parameters associated with the second uplink resource are different from the spatial related parameters associated with the second downlink resource;

所述第t个时间单元为根据所述第三小区的***参数和/或所述第四小区的***参数确定的时间单元；The t-th time unit is a time unit determined according to a system parameter of the third cell and / or a system parameter of the fourth cell;

所述第s个时间单元为根据所述t，和/或，所述第三小区的***参数，和/或，所述第四小区的***参数确定的时间单元。The sth time unit is a time unit determined according to t, and / or, a system parameter of the third cell, and / or, a system parameter of the fourth cell.
根据权利要求83所述的装置，其特征在于，所述t个时间单元为根据所述第三小区的上行载波的***参数确定的时间单元；或者The apparatus according to claim 83, wherein the t time units are time units determined according to a system parameter of an uplink carrier of the third cell; or

所述t个时间单元为根据所述第二上行资源的***参数确定的时间单元；或者The t time units are time units determined according to a system parameter of the second uplink resource; or

所述t时间单元为根据所述第三小区的第三上行资源的***参数确定的时间单元；The t time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell;

所述t时间单元为根据所述第三小区的所有上行资源的中***参数最小的上行资源的***参数确定的时间单元。The t time unit is a time unit determined according to a system parameter of an uplink resource with a minimum system parameter among all uplink resources of the third cell.
根据权利要求83或84所述的装置，其特征在于，所述第s个时间单元为根据所述第三小区的上行载波的***参数与第四小区的下行载波的***参数确定的时间单元；或者The apparatus according to claim 83 or 84, wherein the sth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell and a system parameter of a downlink carrier of the fourth cell; or

所述第s个时间单元为根据所述第二上行资源的***参数与第二下行资源的***参数确定的时间单元；或者The sth time unit is a time unit determined according to the system parameter of the second uplink resource and the system parameter of the second downlink resource; or

所述第s个时间单元根据所述第三小区的第三上行资源的***参数和第四小区的第三下行资源的***参数确定的时间单元；或者The sth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell and a system parameter of a third downlink resource of the fourth cell; or

所述第s个时间单元为根据所述第三小区的上行载波的***参数、所述第四小区的下行载波的***参数和所述t确定的时间单元；或者The sth time unit is a time unit determined according to a system parameter of an uplink carrier of the third cell, a system parameter of a downlink carrier of the fourth cell, and t; or

所述第s个时间单元为根据所述第二上行资源的***参数、第二下行资源的***参数和所述t确定的时间单元；或者The sth time unit is a time unit determined according to the system parameter of the second uplink resource, the system parameter of the second downlink resource, and t; or

所述第s个时间单元为根据所述第三小区的第三上行资源的***参数、第四小区的第三下行资源的***参数和所述t确定的时间单元。The sth time unit is a time unit determined according to a system parameter of a third uplink resource of the third cell, a system parameter of a third downlink resource of the fourth cell, and t.
根据权利要求85所述的装置，其特征在于，所述s为通过公式(6)、公式(7)、公式(8)、公式(9)或公式(10)中的任一个公式确定的；The device according to claim 85, wherein the s is determined by using any one of formula (6), formula (7), formula (8), formula (9), or formula (10);

其中，
为下取整运算，
为上取整运算；所述L为大于或等于0的整数；所述μ1是第三小区的上行载波的***参数，或者，μ1是第二上行资源的***参数，或者，μ1是第三小区的第三上行资源的***参数；μ2是第四小区的下行载波的***参数，或者，μ2是第四小区的第二下行资源的***参数；或者，μ2是第四小区的第三下行资源的***参数。 among them,
For rounding down operations,
Is a round-up operation; the L is an integer greater than or equal to 0; the μ1 is a system parameter of an uplink carrier of a third cell, or μ1 is a system parameter of a second uplink resource, or μ1 is a third cell The system parameter of the third uplink resource of μ3; μ2 is the system parameter of the downlink carrier of the fourth cell, or μ2 is the system parameter of the second downlink resource of the fourth cell; or μ2 is the third downlink resource of the fourth cell. System parameters.