CN109391968B

CN109391968B - Communication method and communication device

Info

Publication number: CN109391968B
Application number: CN201710687605.6A
Authority: CN
Inventors: 酉春华; 刘星; 耿婷婷
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2017-08-11
Filing date: 2017-08-11
Publication date: 2021-08-13
Anticipated expiration: 2037-08-11
Also published as: CN109391968A

Abstract

The application provides a communication method and a communication device. The communication method includes receiving first indication information from a network device, the first indication information configured to indicate a first signal for radio link monitoring, and then determining to perform radio link monitoring based on the first signal according to the first indication information. The communication method disclosed by the embodiment of the application determines the signal for monitoring the wireless link through the indication of the network equipment so as to meet the requirement of adapting to the wireless link monitoring of NR or a scene similar to NR.

Description

Communication method and communication device

Technical Field

The present application relates to the field of wireless communication technologies, and in particular, to a communication method and a communication apparatus.

Background

In a Long Term Evolution (LTE) system, the physical layer of a terminal device detects the radio link quality at each radio frame, and the detection of the radio link quality depends on a synchronization threshold (Qin) and a de-synchronization threshold (Qout). In the specific detection process, the terminal equipment determines the quality of the current wireless link by detecting the quality of the reference signal of the cell, in a measurement window, when the quality of the wireless link is lower than a loss-of-synchronization threshold (Qout), the terminal equipment reports a loss-of-synchronization indication to a high layer, and the loss-of-synchronization timer is increased by 1, and when the quality of the wireless link is higher than a synchronization threshold (Qin), the user equipment reports a synchronization indication to the high layer, and the synchronization timer is increased by 1. Based on the desynchronization counter and the synchronization counter, when the desynchronization counter recording desynchronization indications continuously reported by the terminal equipment exceeds a preset value, the terminal equipment declares Radio Link Failure (RLF).

Currently, in the radio link quality detection process, the synchronization threshold (Qin) and the out-of-synchronization threshold (Qout) are related to the block error rate of the Physical Downlink Control Channel (PDCCH) of the cell-specific reference signal detected by the ue, for example, the signal strength obtained when the block error rate of the downlink PDCCH is 2% corresponds to the synchronization threshold (Qin), and the signal strength obtained when the block error rate of the downlink PDCCH is 10% corresponds to the out-of-synchronization threshold (Qout).

With the development of technology, new radio access technology (NR) is emerging, and the existing wireless link monitoring scheme is not applicable to NR or scenarios similar to NR.

Disclosure of Invention

In view of the above, embodiments of the present application provide a communication method and a communication apparatus for providing a radio link monitoring scheme suitable for NR or scenarios similar to NR.

The embodiment of the application provides the following technical scheme:

in a first aspect of embodiments of the present application, there is provided a communication method, including:

receiving first indication information from a network device, the first indication information configured to indicate a first signal for radio link monitoring;

and determining to monitor a wireless link based on the first signal according to the first indication information.

In a possible design, if the first signal is a first type of signal, the determining to perform radio link monitoring based on the first signal according to the first indication information includes:

when the number of continuous desynchronizing times of the wireless link is larger than or equal to a first preset value, starting a first timer, wherein the desynchronizing of the wireless link is determined when the quality of a downlink control channel based on the first signal is smaller than a second threshold value;

and after the first timer is overtime, determining that the wireless link fails, wherein the first timer stops when the continuous synchronization times of the wireless link are greater than a second preset value, and the wireless link is determined to be synchronized when the quality of a downlink control channel based on the first signal is greater than a first threshold value.

In one possible design, the first signal is: a signal in a channel state information-reference signal, CSI-RS, or SS-block;

the signals in the SS-block include at least one of: a primary synchronization signal, a secondary synchronization signal, and a demodulation signal of system information.

In one possible design, the first signal includes M signals, where M is a positive integer greater than or equal to 2;

the determining, according to the first indication information, to perform radio link monitoring based on the first signal includes:

when the number of continuous desynchronizing times of the wireless link is larger than or equal to a first preset value, starting a second timer, wherein when the quality of downlink control channels based on all the signals in the M signals is smaller than a second threshold value, the desynchronizing of the wireless link is determined;

and when the second timer times out, determining that the radio link fails, wherein the second timer stops when the continuous synchronization times of the radio link are greater than a second preset value, and when the quality of a downlink control channel based on at least one of the M signals is greater than a first threshold value, determining that the radio link is synchronized.

respectively monitoring wireless links based on the quality of the downlink control channels of the M signals to obtain monitoring results corresponding to the M signals;

and when the monitoring results corresponding to the M signals all show that the link failure of the corresponding signal occurs, determining that the wireless link fails.

In one possible design, the M signals correspond to M timers that control a time window for determining a link failure for the M signals.

In one possible design, when the monitoring results corresponding to the M signals indicate that at least one signal does not indicate a link failure corresponding to the signal, it is determined that the wireless link does not fail.

In one possible design, further comprising: and for a second signal which shows that the link failure of the corresponding signal occurs in the M signals, if the continuous synchronization times based on the second signal are greater than or equal to a third preset value, determining the link recovery monitored based on the second signal.

In one possible design, the method further includes:

and sending second indication information to the network equipment, wherein the second indication information is used for indicating the link failure of the corresponding signal.

In one possible design, the method further includes:

receiving a first response message from the network device, the first response message indicating an identification of a transmission parameter of first data and/or a reception parameter of the first data, wherein the transmission parameter is different from a transmission parameter of a corresponding signal of a link failure indicated in the second indication information, and the reception parameter is different from a reception parameter of a corresponding signal of a link failure indicated in the second indication information;

and receiving the first data according to the receiving parameters indicated by the first response message, or determining receiving parameters for receiving the first data according to the sending parameters, and receiving the first data based on the receiving parameters.

In one possible design, the method further includes:

and sending third indication information to the network equipment, wherein the third indication information is used for indicating the link recovery of the second signal.

In one possible design, further comprising:

receiving a second response message from the network device, where the second response message indicates an identifier and/or a receiving parameter of a transmission parameter of second data, and the transmission parameter of the second data is a transmission parameter of one of the second signals; the receiving parameter of the second data is the receiving parameter of one signal in the second signals;

and receiving the first data according to the receiving parameters indicated by the second response message, or determining receiving parameters for receiving the second data according to the sending parameters, and receiving the first data based on the receiving parameters.

In one possible design, the M signals include at least: signals in channel state information-reference signals CSI-RS and SS-block;

In a second aspect of embodiments of the present application, there is provided a communication method, including:

configuring a first signal for wireless link monitoring, generating first indication information;

and sending the first indication information to the terminal equipment.

In one possible design, the first signal is a first type of signal.

In one possible design, the first signal includes M signals, where M is a positive integer greater than or equal to 2.

In one possible design, the method further includes:

and receiving second indication information from the terminal equipment, wherein the second indication information is used for indicating the link failure of the corresponding signal.

In one possible design, the method further includes:

and sending a first response message to the terminal device, where the first response message is used to indicate an identifier of a sending parameter and/or a receiving parameter of first data, where the sending parameter is different from a sending parameter of a corresponding signal of a link failure indicated in the second indication information, and the receiving parameter is different from a receiving parameter of a corresponding signal of a link failure indicated in the second indication information.

In one possible design, the method further includes:

and receiving third indication information from the terminal equipment, wherein the third indication information is used for indicating the link recovery of the second signal.

In one possible design, the method further includes:

sending a second response message to the terminal device, where the second response message indicates an identifier and/or a receiving parameter of a sending parameter of second data, where the sending parameter of the second data is a sending parameter of one of the second signals; the receiving parameter of the second data is a receiving parameter of one of the second signals.

In a third aspect of the embodiments of the present application, a communication apparatus is provided, where the communication apparatus is configured to implement the communication method disclosed in the first aspect of the embodiments of the present application. The communication device may be a chip or a terminal.

In a fourth aspect of the embodiments of the present application, there is provided a communication apparatus, configured to implement the communication method disclosed in the second aspect of the embodiments of the present application. The communication device may be a chip or a network device.

A fifth aspect of the embodiments of the present application provides a communication system including the communication apparatus provided in the third aspect of the embodiments of the present application and the communication apparatus provided in the fourth aspect of the embodiments of the present application.

A sixth aspect of the embodiments of the present application provides a computer-readable storage medium, which includes instructions that, when executed on a computer, cause the computer to perform the communication method disclosed in the first aspect of the embodiments of the present invention.

A seventh aspect of embodiments of the present application provides a computer program product containing instructions that, when executed on a computer, cause the computer to perform the communication method of the above-mentioned aspects.

An eighth aspect of embodiments of the present application provides a chip system, which includes a processor, for enabling each communication apparatus to implement the functions referred to in the above aspects, for example, to generate or process data and/or information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing program instructions and data necessary for the network device and the terminal device. The chip system may be constituted by a chip, or may include a chip and other discrete devices.

The embodiment of the application discloses a communication method and a communication device, wherein the communication method comprises the steps of receiving first indication information from network equipment, wherein the first indication information is configured to indicate a first signal for wireless link monitoring, and then determining to perform wireless link monitoring based on the first signal according to the first indication information. The communication method disclosed by the embodiment of the application determines the signal for monitoring the wireless link through the indication of the network equipment so as to meet the requirement of adapting to the wireless link monitoring of NR or a scene similar to NR.

Drawings

Fig. 1 is a schematic flow chart of a communication method disclosed in an embodiment of the present application;

fig. 2 is a schematic flow chart of another communication method disclosed in the embodiments of the present application;

fig. 3 is a schematic flow chart of another communication method disclosed in the embodiments of the present application;

fig. 4 is a schematic flow chart of another communication method disclosed in the embodiments of the present application;

fig. 5 is a schematic flow chart of another communication method disclosed in the embodiments of the present application;

fig. 6 is a flow chart illustrating another communication method disclosed in the embodiments of the present application;

fig. 7 is a flow chart illustrating another communication method disclosed in the embodiments of the present application;

fig. 8 is a schematic structural diagram of a terminal device disclosed in an embodiment of the present application;

fig. 9 is a schematic structural diagram of another terminal device disclosed in the embodiment of the present application;

fig. 10 is a schematic structural diagram of a network device disclosed in an embodiment of the present application;

fig. 11 is a schematic structural diagram of another network device disclosed in the embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication system according to an embodiment of the present application.

Detailed Description

The communication method and the communication device are used for receiving first indication information from a network device, wherein the first indication information is configured to indicate a first signal for wireless link monitoring, and then determining to perform wireless link monitoring based on the first signal according to the first indication information. Thereby meeting the requirement of wireless link monitoring for adapting to NR or similar scenarios.

The terminal equipment related in the embodiment of the application at least has a configuration of wireless link monitoring based on a signal. The terminal device may be a wired device or a wireless device. The wireless device may be a handheld device with wireless connection capability, or other processing device connected to a wireless modem, a mobile terminal communicating with one or more core networks via a radio access network. For example, the wireless terminal may be a mobile phone, a computer, a tablet computer, a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a wearable device, an e-book reader, and the like. As another example, a wireless terminal may be a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device. As another example, the wireless terminal may be a mobile station or an access point.

The network device related in the embodiment of the present application may be a base station, and may also be other access network devices that can issue indication information, where the base station may include macro base stations, micro base stations, relay stations, access point base station controllers, transmission and reception points, and the like in various forms. The specific names of base stations may vary in systems employing different radio access technologies.

The terminal device and the network device disclosed by the embodiment of the application comprise hardware devices and software running on the hardware devices.

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Where in the description of the present application, "/" indicates an OR meaning, for example, A/B may indicate A or B; "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Also, in the description of the present application, "a plurality" means two or more than two unless otherwise specified. In addition, in order to facilitate clear description of technical solutions of the embodiments of the present application, in the embodiments of the present application, terms such as "first" and "second" are used to distinguish the same items or similar items having substantially the same functions and actions. Those skilled in the art will appreciate that the terms "first," "second," etc. do not denote any order or quantity, nor do the terms "first," "second," etc. denote any order or importance.

Furthermore, the terms "comprising" and "having" in the description of the embodiments and claims of the present application and the drawings are not intended to be exclusive. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to only those steps or modules listed, but may include other steps or modules not listed.

In addition, the communication method provided by the embodiment of the present application may be implemented by a first communication device and a second communication device, where the first communication device may be a chip inside a terminal device or a terminal device, and the second communication device may be a chip inside a network device or a network device.

In the following, the first communication device is taken as a terminal device, and the second communication device is taken as a network device for example.

As shown in fig. 1, a schematic flowchart of a communication method disclosed in the embodiment of the present application includes:

s101: the network device configures a first signal for wireless link monitoring, generating first indication information.

In a particular implementation, the network device generates the first indication information by configuring a first signal for wireless link monitoring. The first signal is a signal based on which the terminal device performs radio link monitoring configuration in advance, and the first indication information is configured to indicate the first signal for radio link monitoring.

In a specific implementation, optionally, the first Signal may be a Channel state information-Reference Signal (CSI-RS). The first signal may also be a signal in an SS-block.

Optionally, the signal in the SS-block includes at least one of: a primary synchronization signal, a secondary synchronization signal, and a demodulation signal of system information.

Optionally, the first signal may also be CSI-RS and SS-block.

In a specific implementation, the first indication information is used to indicate which signal or signals the terminal device employs for radio link monitoring.

S102: the network equipment sends the first indication information to the terminal equipment.

Optionally, the network device may send the first indication information to the terminal device by carrying the first indication information in a Radio Resource Control (RRC) connection reconfiguration message.

S103: the terminal device receives the first indication information from the network device.

S104: and the terminal equipment determines to monitor the wireless link based on the first signal according to the first indication information.

Upon receiving the first indication information from the network device, the first indication information is configured to indicate a first signal for radio link monitoring, as known from S101. And the terminal equipment determines to utilize the first signal to monitor the wireless link according to the first indication information. The first signal may be one signal or several signals.

It is to be understood that, if the network device does not send the first indication information, for example, when the RRC link is not established, the terminal device may perform radio link monitoring based on one or more signals according to a default setting, for example, may perform radio link monitoring based on signals in the SS-block by default.

The embodiment of the application determines the signal for monitoring the wireless link through the indication of the network equipment so as to meet the requirement of adapting to the wireless link monitoring of NR or a scene similar to NR.

Based on the communication method disclosed in the embodiment of the present application, if the first indication information received by the terminal device is configured to indicate that the first signal used for monitoring the radio link is a signal. Another embodiment of the present application discloses a specific process of a communication method, as shown in fig. 2, including:

s201: the network device configures a first signal for wireless link monitoring, generating first indication information.

In a particular implementation, the network device configures the first signal for radio link monitoring to be a signal.

Optionally, the first signal may be a channel state information-reference signal (CSI-RS). The first signal may also be a signal in an SS-block.

S202: the network equipment sends the first indication information to the terminal equipment.

S203: the terminal device receives the first indication information from the network device.

In a specific implementation, the execution principle and the process of S202 and S203 are the same as S102 and S103 shown in fig. 1, which can be referred to and are not described herein again.

S204: the terminal equipment compares the downlink control channel quality based on the first signal with a first threshold value and/or a second threshold value.

In performing S204, the terminal device monitors the radio link according to the downlink control channel quality based on the first signal in each measurement window.

The downlink control channel quality based on the first signal refers to a block error rate (a block error rate of a horizontal PDCCH transmission with specified transmission parameters) of a hypothetical PDCCH transmission using preset transmission parameters.

And if the quality of the downlink control channel of the first signal is greater than or equal to a first threshold value, determining that the wireless link is synchronous. That is, the radio link synchronization refers to a case where the downlink control channel quality is good.

And if the quality of the downlink control channel of the first signal is less than or equal to the second threshold value, determining that the wireless link is out of step. That is, the out-of-synchronization of the radio link refers to the condition that the quality of the downlink control channel is poor.

Optionally, the quality of the downlink control channel may specifically be a Physical Downlink Control Channel (PDCCH) quality, and the PDCCH quality may be represented by a block error rate.

Optionally, the first threshold is Qin, and the second threshold is Qout.

Taking the first signal as the CSI-RS as an example, in each measurement window, when it is determined that the quality of the downlink control channel based on the CSI-RS is greater than or equal to the first threshold, the terminal device determines primary synchronization. And when the quality of the downlink control channel based on the CSI-RS is determined to be less than or equal to a second threshold value, the terminal equipment determines that the terminal equipment is out of synchronization once.

Taking the first signal as the signal in the SS-block as an example, in each measurement window, when determining that the quality of the downlink control channel based on the signal in the SS-block is greater than or equal to the first threshold, the terminal device determines primary synchronization. And when determining that the quality of the downlink control channels of all signals for monitoring the wireless link in the SS-block is less than or equal to a second threshold value, the terminal equipment determines that the terminal equipment is out of synchronization once.

Optionally, for determining the number of times of synchronization and de-synchronization, a counter corresponding to each may be used, but the counter is not limited to be used. For example, the out-of-sync counter may be N310, and the in-sync counter may be N311, but is not limited thereto.

S205: and starting a first timer when the continuous desynchronizing times of the wireless link is greater than or equal to a first preset value.

S206: and stopping the first timer when the continuous synchronization times of the wireless link are greater than or equal to a second preset value during the operation of the first timer.

In S205 a continuous out-of-sync of the radio link is involved. Radio link synchronization is involved in S206. The continuous monitoring means that the condition of determining synchronization or determining loss of synchronization continuously occurs in the monitoring process, that is, the two times of monitoring are determined to be synchronous or determined to be loss of synchronization. If the out-of-step is marked by O and the in-synchronization is marked by I during the monitoring, if: o, the wireless link may be considered to be out of step 4 times continuously, if: o, I, O, I, that is, there is no continuous out-of-sync or in-sync. The above-mentioned mark of in-or out-of-sync may also be represented by a bit value of "0" or "1".

Alternatively, the first timer may be T310, but is not limited thereto.

Optionally, the duration of the first timer may be configured or preconfigured by the network device. During the operation of the first timer, the time window corresponding to the duration of the first timer is referred to.

The first preset value, the second preset value, the first threshold value, and the second threshold value may be configured in advance, or may be notified to the terminal device through a signaling, which is not limited in this embodiment of the application.

For example, if the duration of the first timer is 10 seconds, the duration of the time window is 10 seconds. And during the first timing operation, stopping the first timer when the continuous synchronization times of the wireless link are greater than or equal to a second preset value. The process refers to stopping the first timer when the continuous synchronization times of the wireless link are greater than or equal to a second preset value within 10 seconds after the first timer is started.

S207: and if the first timer is overtime, determining that the wireless link fails.

That is, if the first timer does not pass the trigger stop of S206, it is determined that the radio link failure has occurred after the operation reaches the preset time period (i.e., time out).

Optionally, after the terminal device determines that the radio link fails, the radio link reestablishment procedure may be triggered.

According to the embodiment of the application, a signal for monitoring the wireless link is determined through the indication of the network equipment, and the signal is adopted for monitoring the wireless link, so that the requirement of adapting to the wireless link monitoring in an NR or similar scene with the NR is met.

Based on the communication method disclosed in the embodiment of the present application, if the first indication information received by the terminal device is configured to indicate that the first signal used for monitoring the wireless link at least includes M types of signals, M is a positive integer greater than or equal to 2. The following embodiments are illustrated by taking M ═ 2 as an example, and a specific flow of a communication method disclosed in another embodiment of the present application is shown in fig. 3, and includes:

s301: the network device configures a first signal for wireless link monitoring, generating first indication information.

In a particular implementation, the first signal that the network device configures for wireless link monitoring includes two signals. Optionally, the two signals may be signals in CSI-RS and SS-block.

S302: the network equipment sends the first indication information to the terminal equipment.

S303: the terminal device receives the first indication information from the network device.

In a specific implementation, the execution principle and the process of S302 and S303 are the same as S102 and S103 shown in fig. 1, which can be referred to and are not described herein again.

S304: the terminal equipment compares the quality of the downlink control channel based on the two signals with a first threshold value and/or a second threshold value.

In a specific implementation, the quality of the downlink control channel based on the two signals is compared with a first threshold and/or a second threshold, and if the quality of the downlink control channel of at least one signal is greater than or equal to the first threshold, the wireless link synchronization is determined.

And if the quality of the downlink control channels of the two signals is less than or equal to the second threshold value, determining that the wireless link is out of step.

In one possible approach, the first signal is taken as an example of the signals in the CSI-RS and SS-block. The terminal equipment determines the wireless link synchronization when determining that the quality of a downlink control channel only with the CSI-RS is greater than or equal to a corresponding first threshold in each measurement window; or when determining that the quality of the downlink control channel of only the signals in the SS-block is greater than or equal to the corresponding first threshold, determining that the wireless link is synchronous; or when the quality of the downlink control channel of the signals in the CSI-RS and the SS-block is larger than or equal to the corresponding first threshold value, the wireless link synchronization is also determined.

However, when it is determined that only one of the downlink control channel quality of the CSI-RS and the downlink control channel quality of the signal in the SS-block is less than or equal to the second threshold, the terminal device does not determine that the wireless link is out of synchronization. And when the quality of the downlink control channel of the signals in the CSI-RS and the SS-block is less than a second threshold value, the terminal equipment determines that the wireless link is out of step.

S305: and starting a first timer when the continuous desynchronizing times of the wireless link is greater than or equal to a first preset value.

S306: and stopping the first timer when the continuous synchronization times of the wireless link are greater than or equal to a second preset value during the operation of the first timer.

S307: and if the first timer is overtime, determining that the wireless link fails.

In a specific implementation, the execution principle and the process of S305, S306, and S307 are the same as S105, S106, and S107 shown in fig. 2, and it can be referred to that they are not described again here.

Optionally, after the terminal device monitors that the radio link fails, the radio link reestablishment procedure may be triggered.

According to the embodiment of the application, at least two signals for monitoring the wireless link are determined through the indication of the network equipment, and the wireless link monitoring is carried out based on the multiple signals, so that the reliability of the wireless link monitoring is improved, and the requirement of adapting to the NR or the wireless link monitoring similar to the NR scene is met.

Based on the communication method disclosed in the embodiment of the present application, if the first indication information received by the terminal device is configured to indicate that the first signal used for monitoring the radio link at least includes M types of signals, M is a positive integer greater than or equal to 2, and each type of signal corresponds to one type of timer. In particular implementations, the terminal device may employ multiple signal wireless links included in the first signal for monitoring. The following embodiments exemplify M ═ 2, a specific flow of a communication method disclosed in another embodiment of the present application, and a specific flow of another communication method disclosed in the embodiments of the present application are shown in fig. 4, and include:

s401: the network device configures a first signal for wireless link monitoring, generating first indication information.

In a particular implementation, the first signal that the network device configures for wireless link monitoring includes two signals.

S402: the network equipment sends the first indication information to the terminal equipment.

S403: the terminal device receives the first indication information from the network device.

In a specific implementation, the execution principle and the process of S402 and S403 are the same as S102 and S103 shown in fig. 1, which can be referred to and are not described herein again.

S404: the terminal equipment compares the quality of the downlink control channel based on the two signals with a corresponding first threshold and a second threshold respectively.

In a specific implementation, the terminal device compares two signals in the first signal with a first threshold and a second threshold respectively corresponding to the two signals in each measurement window.

The two signals are assumed to be signal a and signal B.

And if the quality of the downlink control channel of the signal A is greater than or equal to a first threshold corresponding to the signal A, determining the wireless link synchronization monitored based on the signal A.

And if the quality of the downlink control channel of the signal B is greater than or equal to a first threshold corresponding to the signal B, determining the wireless link synchronization monitored based on the signal B.

And if the quality of the downlink control channel of the signal A is less than or equal to a second threshold corresponding to the signal A, determining that the wireless link monitored based on the signal A is out of step.

And if the quality of the downlink control channel of the signal B is less than or equal to a second threshold corresponding to the signal B, determining that the wireless link monitored based on the signal B is out of step.

In a possible implementation manner, taking the first signal as a CSI-RS and a SS-block signal as an example, when the quality of a downlink control channel of the CSI-RS is greater than or equal to a corresponding first threshold, the radio link synchronization monitored based on the CSI-RS is determined. And when the quality of the downlink control channel of the CSI-RS is less than or equal to the corresponding second threshold, determining that the radio link monitored based on the CSI-RS is out of step.

And when the quality of the downlink control channel of the signal in the SS-block is greater than or equal to the corresponding first threshold value, determining the wireless link synchronization monitored based on the signal in the SS-block. And when the quality of the downlink control channel of the signal in the SS-block is less than a corresponding second threshold value, determining that the wireless link monitored based on the main synchronization signal in the SS-block is out of step.

The specific detection process for each signal is shown as S405-S407:

s405: when the number of continuous out-of-step of the wireless link is monitored to be greater than or equal to a first preset value based on a signal, a second timer associated with the signal is started.

Taking a signal as the CSI-RS as an example, if the number of continuous out-of-synchronization of the wireless link is monitored based on the CSI-RS is greater than or equal to a first preset value, a timer associated with the CSI-RS is started.

Taking an example where one of the signals is a signal in the SS-block, if the number of consecutive out-of-sync times of the wireless link is monitored to be greater than or equal to a first preset value based on the signal in the SS-block, a timer associated with the signal in the SS-block is started.

S406: and stopping the second timer associated with each signal when the number of continuous synchronization of the wireless link monitored based on the signal is greater than or equal to a second preset value during the running of the second timer associated with the signal.

S407: when a second timer associated with each signal times out, a link failure for the corresponding signal is determined.

In a possible manner, the two signals are respectively executed in the above-mentioned S405-S407, and the monitoring results corresponding to the two signals can be obtained.

Optionally, the second timer may be the same as or different from the first timer. The duration of the second timer may be the same as or different from the duration of the first timer. The second timer is used to control a time window for determining a link failure for a corresponding signal. The time window is the duration of the second timer. The duration of the second timer may be configured or preconfigured by the network device. The second timer may be, but is not limited to, T310.

The duration of the second timer associated with each signal may be the same or different.

S408: and when the monitoring results corresponding to the signals all show that the link failure of the corresponding signal occurs, determining that the wireless link fails.

In a specific implementation, when the monitoring result of only one signal is a link failure, the link failure corresponding to the signal is determined, and the radio link failure is not considered. And when the monitoring results of the two signals both show that the link failure of the corresponding signal occurs, determining that the wireless link fails.

That is, when the monitoring results corresponding to the two signals indicate that at least one of the signals does not indicate the link failure in which the corresponding signal occurs, it is determined that the wireless link does not fail.

Further, if the monitoring results of the two signals show that the link of one signal fails and the other signal does not show the link failure, the signal showing the link failure is called a second signal, and if the number of continuous synchronization of the wireless link monitored based on the second signal is greater than or equal to a third preset value, the link recovery monitored based on the second signal is determined.

In combination with the above monitoring of different radio links based on different signals, in a specific implementation, when a link based on one signal monitoring fails, the link failure of the corresponding signal is declared, and the radio link failure in the cell where the terminal device is currently located is not declared.

Further, if it is determined that the radio link fails, the terminal may not trigger the radio link re-establishment procedure.

Optionally, the terminal device may trigger the radio link reestablishment procedure when it is determined that the radio link fails.

It should be noted that the quality of the downlink control channel of the two signals is compared with the first threshold and/or the second threshold. The quality of the downlink control channel of the two signals may be compared with the same first threshold, or may be compared with the respective corresponding first thresholds, and the respective corresponding first thresholds of the two signals may be the same or different. Similarly, the quality of the downlink control channel of the two signals may be compared with the same second threshold, or may be compared with respective corresponding second thresholds, and the respective second thresholds of the two signals may be the same or different.

Based on the communication method that the first signal is two signals disclosed in the embodiment of the present application, the communication method is also applicable to the case that the first signal includes three signals, four signals, or even more signals, and details are not repeated here.

The embodiment of the application determines at least two signals for monitoring the wireless link through the indication of the network equipment, performs independent wireless link monitoring aiming at each signal, and determines whether the wireless link monitored by each signal has link failure or wireless link recovery. Further, after the radio link failure occurs in the radio links monitored by all the signals, the radio link failure is declared to occur in the cell where the terminal device is located, or the radio link reestablishment process may be further triggered. Therefore, the requirement of wireless link monitoring suitable for NR or a scene similar to NR is met, and the reliability of wireless link monitoring is further improved.

Based on the communication method disclosed in fig. 4 in the embodiment of the present application, taking the first signal as a CSI-RS signal and a SS-block signal as an example, specifically described, as shown in fig. 5, the communication method includes:

s501: the first signal configured for wireless link monitoring by the network equipment comprises signals in CSI-RS and SS-block, and first indication information is generated.

S502: the network equipment sends the first indication information to the terminal equipment.

S503: the terminal device receives the first indication information from the network device.

S504: and the terminal equipment compares the quality of the downlink control channel based on the CSI-RS with the corresponding first threshold and/or second threshold.

Optionally, in each measurement window, if the quality of the downlink control channel based on the CSI-RS is greater than or equal to the corresponding first threshold, the CSI-RS-based radio link synchronization is determined, and the first synchronization counter associated with the CSI-RS counts.

And if the quality of the downlink control channel based on the CSI-RS signal is less than or equal to the corresponding second threshold, determining that the wireless link based on the CSI-RS monitoring is out of step, and counting by a first out-of-step counter associated with the CSI-RS.

Optionally, values of the first synchronization counter (for counting the number of consecutive synchronizations) and the first out-of-synchronization counter (for counting the number of consecutive out-of-synchronization) may be configured by the network or may be configured in advance.

S505: and starting a third timer related to the CSI-RS when the count in the first out-of-step counter exceeds a first preset value.

S506: and stopping the third timer if the count in the first synchronous counter exceeds a second preset value during the running period of the third timer.

S507: and when the third timer is overtime, determining that the link corresponding to the CSI-RS fails.

S508: the quality of a downlink control channel based on signals in the SS-block is compared to corresponding first and/or second thresholds.

Optionally, in each measurement window, if the quality of the downlink control channel based on the signal in the SS-block is greater than or equal to the corresponding first threshold, determining synchronization of the wireless link based on the signal monitoring in the SS-block, and counting by a second synchronization counter associated with the SS-block.

And if the quality of the downlink control channel based on the signals in the SS-block is less than or equal to the corresponding second threshold value, determining that the wireless link monitored based on the signals in the SS-block is out of step, and counting by a second out-of-step counter associated with the SS-block.

Optionally, the values of the second synchronization counter (for counting the number of consecutive synchronizations) and the second out-of-synchronization counter (for counting the number of consecutive out-of-synchronization) may be configured by the network or may be preconfigured.

S509: and starting a fourth timer associated with the SS-block when the count in the second out-of-step counter exceeds a first preset value.

S510: and during the running period of the fourth timer, if the count in the second synchronous counter exceeds a second preset value, stopping the fourth timer.

S511: and when the fourth timer is overtime, determining that the link corresponding to the SS-block fails.

In a specific implementation, the steps S508 to S511 for performing radio link monitoring based on the signals in the SS-block and the steps S505 to S507 for performing radio link monitoring based on the CSI-RS are not in sequence in the execution process.

S512: and when the third timer and the fourth timer are determined to be overtime or overtime, determining that the radio link of the cell in which the mobile terminal is positioned fails.

Alternatively, the third timer and the fourth timer may be T310 and T311, respectively, but are not limited thereto. The durations of the third timer and the fourth timer may be configured or preconfigured by the network device.

Optionally, after determining that the radio link of the cell in which the terminal device is located fails, the terminal device triggers a radio link reestablishment procedure.

It should be noted that, in a specific implementation, if only the third timer or the fourth timer times out, the radio link of the cell in which the radio link is located is not considered to be failed. The radio link re-establishment procedure is not triggered.

The embodiment of the application determines two signals for monitoring the wireless link through the indication of the network equipment, performs independent wireless link monitoring aiming at each signal, and determines whether the wireless link failure or wireless link recovery occurs in the wireless link monitored by each signal. Further, after the radio link failure occurs in the radio links monitored by all the signals, the radio link failure is declared to occur in the cell where the terminal device is located comprehensively, or the radio link reestablishment process is triggered. Thereby realizing the requirement of meeting the wireless link monitoring of the NR or the similar scene with the NR. Furthermore, the reliability of wireless link monitoring is improved.

Based on the communication methods disclosed in fig. 4 and fig. 5 in the embodiments of the present application, after determining that the link of the corresponding signal fails, another embodiment of the present application further discloses a communication method, as shown in fig. 6, which mainly includes:

s601: and the terminal equipment sends second indication information to the network equipment.

In a specific implementation, the second indication information is used to indicate a link failure of a corresponding signal, not a radio link failure.

Optionally, the corresponding signal may be one or more of the M signals disclosed in the corresponding description of fig. 4 and 5.

S602: the network device receives the second indication information from the terminal device.

S603: the network device sends a first response message to the terminal device.

S604: the terminal equipment receives the first response message from the network equipment, and determines the identification of the sending parameter of the first data and/or the receiving parameter of the first data according to the first response message.

In a specific implementation, the network device sends data to the terminal device based on certain sending parameters, and the terminal device receives data based on receiving parameters matched with the sending parameters.

Optionally, the first response message is used to indicate an identifier of a transmission parameter of the first data of the terminal device and/or a reception parameter of the first data.

The transmission parameters of the first data and the reception parameters of the first data are matched. That is, if the network device transmits the first data to the terminal device based on the transmission parameter of the first data, the terminal device may determine the reception parameter of the matched first data according to the identifier of the transmission parameter of the first data indicated by the first response message, and receive the first data using the reception parameter. The terminal device may also receive the first data based on the reception parameter of the first data indicated by the first response message.

In a specific implementation, the identifier of the sending parameter of the first data may be an identifier of an SS-block or a configuration identifier of a CSI-RS, and the receiving parameter of the first data may be determined by the identifier of the SS-block or the configuration identifier of the CSI-RS.

Optionally, if the second indication information received by the network device indicates that the link monitored by the corresponding SS-block fails, the first data at least includes one of a system message, a paging message, and a random access response message. The identification of the sending parameter of the first data is switched from the identification of the sending parameter of the SS-block to the identification of the sending parameter of the CSI-RS, and the terminal equipment can determine the receiving parameter matched with the first data through the identification of the sending parameter of the first data indicated by the first response message. Or the identifier of the transmission parameter of the first data is switched from the identifier of broadcast transmission to the identifier of unicast transmission, and the terminal device determines the receiving parameter matched with the first data according to the identifier of the transmission parameter of the first data indicated by the first response message.

Optionally, if the second indication information received by the network device indicates that the link monitored by the corresponding CSI-RS fails, the first data is dedicated data. And switching the identifier of the sending parameter of the first data from the identifier of the sending parameter of the CSI-RS to the identifier of the sending parameter of the SS-block, and determining the receiving parameter matched with the first data by the terminal equipment according to the identifier of the sending parameter of the first data indicated by the first response message.

Optionally, the transmission parameter of the first data may refer to a transmission beam; the reception parameter of the first data is specifically referred to as a reception beam. Alternatively, a beam may be understood as a spatial resource. Or may refer to a transmission or reception precoding vector having an energy transmission directivity, and the transmission or reception precoding vector can be identified by index information.

The energy transmission directivity may refer to precoding a signal to be transmitted by the precoding vector, the signal subjected to the precoding has a certain spatial directivity, and the signal subjected to the precoding by the precoding vector has a better received power. Such as satisfying the received demodulation signal-to-noise ratio.

The energy transmission directivity may also mean that the same signal transmitted from different spatial locations received through the precoding vector has different reception powers.

Alternatively, the same communication device (e.g. terminal device or network device) may have different precoding vectors, and different communication devices may also have different precoding vectors, i.e. corresponding to different beams.

One communication device may use one or more of a plurality of different precoding vectors at the same time, i.e. may form one beam or a plurality of beams at the same time, depending on the configuration or capabilities of the communication device. The beam information may be identified by index information.

Alternatively, the index information may correspond to a resource Identity (ID) of the configured terminal device. For example, the index information may correspond to an ID, an index, or a resource of the configured CSI-RS. The index information may be an ID or a resource of a correspondingly configured uplink Sounding Reference Signal (SRS).

Alternatively, the index information may also be index information explicitly or implicitly carried by a signal or channel carried by the beam. For example, the index information includes, but is not limited to, index information indicating a beam through a synchronization signal or a broadcast channel transmitted by the beam. The resource may be at least one of: time domain, frequency domain, code domain (sequence).

The receiving parameters of the first data may include at least one of the following parameters: angle of arrival (angle of arrival, AoA), main angle of arrival (Dominant AoA), average angle of arrival (average AoA), angle Power Spectrum of angle of arrival (PAS), average angle of departure (AOD), angle Power Spectrum of angle of departure, transmit/receive channel correlation, transmit/receive beamforming, and spatial channel correlation, among others.

The transmission parameter of the first data may include at least one of the following parameters: angle of departure, average angle of departure (AOD), angular power spectrum of angle of departure, transmit/receive channel correlation, transmit/receive beamforming, and spatial channel correlation, among others.

According to the communication method disclosed by the embodiment of the application, after the link failure of the corresponding signal is determined, the first indication is sent to the network equipment, and after the first response message fed back by the network equipment is received, the sending beam and/or the receiving parameter of the first data are switched based on the first response message. So as not to affect the normal reception of the first data by the terminal device.

Based on the communication method disclosed in fig. 4 to fig. 6 in the embodiment of the present application, after determining that the link of the corresponding signal is recovered, another embodiment of the present application further discloses a communication method, as shown in fig. 7, which mainly includes:

s701: and the terminal equipment sends the third indication information to the network equipment.

The third indication information is used to indicate link recovery of the second signal.

S702: the network device receives the third indication information from the terminal device.

S703: and the network equipment sends a second response message to the terminal equipment.

S704: and the terminal equipment receives the second response message from the network equipment and determines the sending parameter and/or the receiving parameter of the second data according to the second response message.

In a specific implementation, the second response message is used to indicate an identifier of a transmission parameter of the second data and/or a reception parameter of the first data of the terminal device. The second data may be the same as or different from the first data disclosed in the corresponding description of fig. 6. When the second data is the same as the first data, the sending parameter identifier and the receiving parameter of the second data have the same meanings as those of the sending parameter identifier and the receiving parameter disclosed in the corresponding description of fig. 6 in the embodiment of the present application, and reference may be made to these parameters, which are not repeated herein. In a possible manner, the identification of the transmission parameter of the second data may be an identification of an SS-block or a configuration identification of a CSI-RS, and the reception parameter of the second data may be determined by the identification of the SS-block or the configuration identification of the CSI-RS.

Optionally, if the third indication information is used to indicate link recovery corresponding to signal monitoring in the SS-block, the second data includes at least one of a system message, a paging message, and a random access response message. And the terminal equipment indicates that the sending parameter of the second data is switched from the sending parameter of the CSI-RS to the sending parameter of the SS-block according to the second response message, so that the receiving parameter matched with the second data can be determined. Or the terminal device indicates that the sending parameter of the second data is switched from unicast sending to broadcast sending according to the second response message, and can determine the receiving parameter matched with the second data.

Optionally, if the third indication information is used to indicate link recovery corresponding to CSI-RS monitoring, the second data is dedicated data. And the terminal equipment indicates that the sending parameter of the second data is switched from the sending parameter in the SS-block to the sending parameter of the CSI-RS according to the second response message, so that the receiving parameter matched with the second data can be determined.

According to the communication method disclosed by the embodiment of the application, after the link corresponding to the signal is determined to be recovered, the third indication information is sent to the network equipment, and after the second response message fed back by the network equipment is received, the sending parameter and/or the receiving parameter of the second data are switched based on the second response message. Therefore, the second data of the recovered terminal equipment continues to normally receive the second data by adopting the original receiving parameters.

Based on the communication method disclosed in fig. 1 to 7 in the embodiment of the present application, an embodiment of the present application further provides a communication method, including:

the terminal device sends a preamble sequence to the network device. The network device receives the leader sequence from the terminal device and determines a transmission parameter for transmitting a response message to the terminal device according to the leader sequence. The terminal device receives a response message of the preamble sequence transmitted based on the transmission parameter from the network device.

The preamble sequence is configured to be used for instructing the network device to determine a transmission parameter or a reception parameter of a response message for transmitting the corresponding preamble sequence.

That is, the terminal device requests the network device for the transmission parameters used by the response message of the preamble sequence, and determines the reception parameters of the response message of the preamble according to the preamble sequence associated with the preamble and/or the RACH time-frequency resource. Here, the transmission parameter or the reception parameter may include a beam type. E.g., a beam of CSI-RS or SS-block. Typically, the CSI-RS beam is a narrow beam and the SS-block beam is a wide beam.

Optionally, the network device may configure a beam type used by a response message of different preamble sequence groups, and the terminal device determines the different preamble sequence groups according to the received signal power or the downlink control channel quality, and requests the network device for the beam type used by the response message of the preamble sequence.

Optionally, the network device may configure different RACH (random access channel) time-frequency resource groups, and the terminal device determines resources of the different RACH time-frequency resource groups according to the received signal power or the downlink control channel quality, and requests, to the network device, a beam type applicable to a response message for the resources of the RACH time-frequency resource group.

Optionally, the Preamble sequence includes a Preamble, and the random access time domain resource and/or frequency domain resource corresponding to the Preamble.

In a possible manner, if the terminal device requests the network device to send a response message through the CSI-RS beam, the terminal device decodes the control information associated with the response message according to the first identifier when determining that the random access time-frequency resource and/or the at least one preamble sequence associated with the CSI-RS performs random access. The first identity may be a cell radio network temporary identity (C-RNTI).

And if the terminal equipment determines that the request network equipment sends the response message through the SS-Block beam, the terminal equipment decodes the control information associated with the response message according to the second identifier when determining that the time-frequency resource and/or at least one leader sequence of the SS-Block associated random access carries out random access. The second identity may be a random access radio network temporary identity (RA-RNTI).

Optionally, the second indication information of the corresponding signal related in the embodiment of the present application may be a preamble sequence, but the preamble sequence is not limited to a scenario in which a link for the corresponding signal fails.

It is understood that the above-mentioned interaction procedure of the preamble sequence and the corresponding response message between the terminal device and the network device can also be implemented independently, i.e. without depending on the communication method of the embodiments shown in fig. 1-7. The preamble sequence can also be independently applied to other scenarios. The preamble sequence may also be used in an application scenario for requesting system information, for example. Or, the method can also be used in an application scenario of requesting uplink transmission resources.

Based on the communication method disclosed in the embodiment of the present application, the embodiment of the present application further discloses a communication device for executing the communication method.

Fig. 8 is a schematic structural diagram of a communication device 800 disclosed in the embodiment of the present application. The communication apparatus may be a terminal device or a chip, and the communication apparatus 800 includes:

a receiving module 801, configured to receive first indication information from a network device, where the first indication information is configured to indicate a first signal for wireless link monitoring;

a monitoring module 802, configured to determine, according to the first indication information, to perform wireless link monitoring based on the first signal.

The first signal may be a CSI-RS. The first signal may also be a signal in an SS-block. Optionally, the signal in the SS-block includes at least one of: a primary synchronization signal, a secondary synchronization signal, and a demodulation signal of system information. Optionally, the first signal may also be CSI-RS and SS-block.

The communication device 800 further comprises:

a sending module 803, configured to send the second indication information to the network device after the monitoring module 802 determines that the link of the corresponding signal fails, and send the third indication information to the network device after the monitoring module 802 determines that the link of the corresponding signal recovers.

The receiving module 801 is further configured to receive a first response message sent by the network device, and a second response message.

In a specific implementation, according to different types of signals included in the first signal, the monitoring module 802 performs wireless link monitoring based on the determined first signal in different manners, and for the first signal and the corresponding wireless link monitoring, reference may be made to corresponding operations performed by the terminal device/the first communication apparatus in fig. 1 to fig. 7 in this application, which are not described herein again.

A sending module 803, configured to send the preamble sequence to the network device. The preamble sequence is configured as a transmission parameter for instructing the network device to determine to transmit a response message of the corresponding preamble sequence.

That is, the communication apparatus 800 requests the network device for a transmission parameter or a reception parameter used for the response message for the preamble sequence. Here, the transmission parameter or the reception parameter also refers to a beam type. E.g., a beam of CSI-RS or SS-block. Typically, the CSI-RS beam is a narrow beam and the SS-block beam is a wide beam.

Optionally, the network device may configure the beam type used by the response message of the different preamble sequence groups, and the communication apparatus 800 further includes a determining module 804, where the determining module 804 is configured to determine the different preamble sequence groups according to the received signal power or the downlink control channel quality. The sending module 803 is further configured to request the network device for the beam type used by the response message for the preamble sequence.

Optionally, the network device may configure different RACH time-frequency resource groups, and the determining module 804 is further configured to determine resources of the different RACH time-frequency resource groups according to the received signal power or the quality of the downlink control channel. The sending module 803 is further configured to request, from the network device, a beam type used by the response message for the resources of the RACH time-frequency resource group.

Optionally, the Preamble sequence includes a Preamble (Preamble), and the Preamble corresponds to a random access time domain resource and/or a frequency domain resource.

Optionally, the communication apparatus 800 may further include: the decoding module 805 is configured to send a response message through the CSI-RS beam if the communication apparatus 800 requests the network device. When the determining module 804 determines that the random access time-frequency resource and/or one or more preamble sequences associated with the CSI-RS perform random access, the decoding module 805 decodes the control information associated with the response message according to the first identifier. And if the communication apparatus 800 requests the network device to send a response message through the SS-Block beam, and the determining module 804 determines that the random access time-frequency resource and/or one or more preamble sequences associated with the SS-Block perform random access, the decoding module 805 decodes the control information associated with the response message according to the second identifier.

The first identifier may be a C-RNTI. The second identity may be an RA-RNTI.

The corresponding operations related to each module in the communication apparatus 800 disclosed in the embodiment of the present application may refer to the corresponding operations executed by the terminal device/the first communication apparatus in the embodiment of the present application, and are not described herein again.

In combination with the communication method disclosed in the embodiments of the present application, the communication apparatus disclosed in the embodiments of the present application may also be implemented directly by hardware, a memory executed by a processor, or a combination of the two.

As shown in fig. 9, the communication apparatus 900 includes: a processor 901 and a memory 902. Optionally, the communication device 900 further comprises a communication interface 903.

The processor 901 is coupled to the memory 902 through a bus. The processor 902 is coupled to the communication interface 903 via a bus.

The processor 901 may specifically be a Central Processing Unit (CPU), a Network Processor (NP), an application-specific integrated circuit (ASIC), or a Programmable Logic Device (PLD). The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), or a General Array Logic (GAL).

The memory 902 may specifically be a content-addressable memory (CAM) or a random-access memory (RAM). The CAM may be a Ternary CAM (TCAM).

The communications interface 903 may be a wired interface, such as a Fiber Distributed Data Interface (FDDI) or ethernet (ethernet) interface.

The memory 902 may also be integrated in the processor 901. If the memory 902 and the processor 901 are separate devices, the memory 902 and the processor 901 may be connected, for example, the memory 902 and the processor 901 may communicate via a bus. The communication interface 903 and the processor 901 may communicate via a bus, and the communication interface 903 may be directly connected to the processor 901.

The memory 902 is used for storing the operating programs, codes or instructions of the communication methods disclosed in the embodiments of the present application. Optionally, the memory 902 includes an operating system and an application program, and is used for operating programs, codes or instructions of the communication method disclosed in the embodiment of the present application.

When the processor 901 or the hardware device is to perform the operations related to the communication method disclosed in the embodiment of the present application, the operation program, the code, or the instructions stored in the memory 902 is called and executed, so that the process of the terminal device related to the embodiment of the present application to perform the corresponding communication method can be completed. For a specific process, reference may be made to corresponding portions in the foregoing embodiments of the present application, which are not described herein again.

It is to be understood that the operations of receiving/transmitting and the like related to the embodiments of the communication method shown in fig. 1 to fig. 7 may refer to receiving/transmitting processes implemented by a processor, or may refer to transmitting/receiving processes performed by a receiver and a transmitter, where the receiver and the transmitter may exist independently or may be integrated into a transceiver. In one possible implementation, the communication apparatus 900 may further include: a transceiver.

In one possible approach, the processor 901 is used to implement the functions of the respective modules of the monitoring module 802, the determining module 804 and the decoding module 805 shown in fig. 8.

It will be appreciated that fig. 9 only shows a simplified design of the communication device. In practical applications, the communication device may include any number of interfaces, processors, memories, etc., and all communication devices that can implement the embodiments of the present application are within the scope of the embodiments of the present application.

Based on the communication method disclosed by the embodiment of the application, the embodiment of the application also discloses another communication device for executing the communication method.

As shown in fig. 10, which is a schematic structural diagram of a communication apparatus 1000 disclosed in the embodiment of the present application, the communication apparatus may be a chip or a network device, and the communication apparatus 1000 includes:

a configuration module 1001, configured to configure a first signal for wireless link monitoring, and generate first indication information.

The first signal may be a CSI-RS. The first signal may also be a signal in an SS-block. Optionally, the signal in the SS-block includes at least one of: a primary synchronization signal, a secondary synchronization signal, and a demodulation signal of system information. Optionally, the first signal may also be a signal in CSI-RS and SS-block.

A sending module 1002, configured to send the first indication information to the terminal device.

The communication device 1000 further comprises:

the receiving module 1003 is configured to receive a first instruction sent by the terminal device, and receive a second instruction sent by the terminal device.

The sending module 1002 is further configured to send a first response message to the terminal device, and send a second response message to the terminal device.

The communication device 1000 further comprises: a processing module 1004.

The receiving module 1003 is further configured to receive a preamble sequence sent by the terminal device.

The processing module 1004 is further configured to determine, based on the preamble sequence, a transmission parameter used for transmitting the response message to the terminal device.

The sending module 1002 is further configured to send a response message to the terminal device based on the sending parameter.

The corresponding operations related to each module in the communication apparatus 1000 disclosed in the embodiment of the present application may refer to the corresponding operations executed by the network device/the second communication apparatus in the embodiment of the present application, and are not described herein again.

As shown in fig. 11, the communication apparatus 1100 includes: a processor 1101 and a memory 1102. Optionally, the communication device 1100 further comprises a communication interface 1103.

The processor 1101 is coupled to the memory 1102 by a bus. The processor 1102 is coupled to the communication interface 1103 by a bus.

The processor 1101 may be specifically a CPU, NP, ASIC or PLD. The PLD may be a CPLD, FPGA or GAL.

The memory 1102 may specifically be a CAM or a RAM. The CAM may be a TCAM.

The communication interface 1103 may be a wired interface, such as an FDDI or Ethernet interface.

The memory 1102 may also be integrated within the processor 1101. If the memory 1102 and the processor 1101 are separate devices, the memory 1102 and the processor 1101 may be coupled, for example, the memory 1102 and the processor 1101 may communicate via a bus. The communication interface 1103 and the processor 1101 may communicate via a bus, and the communication interface 1103 may be directly connected to the processor 1101.

The memory 1102 is used for storing the operating programs, codes or instructions of the communication methods disclosed in the embodiments of the present application. Optionally, the memory 1002 includes an operating system and applications for storing operating programs, code or instructions for handling DRX configurations.

When the processor 1101 or the hardware device is to perform the operations related to the communication method disclosed in the embodiment of the present application, invoking and executing the operating program, code or instructions stored in the memory 1102 may complete the process of executing the communication method by the network device involved in the communication method disclosed in the embodiment of the present application. For a specific process, reference may be made to corresponding portions in the foregoing embodiments of the present application, which are not described herein again.

It is to be understood that the operations of receiving/transmitting and the like related to the embodiments of the communication method shown in fig. 1 to fig. 7 may refer to receiving/transmitting processes implemented by a processor, or may refer to transmitting/receiving processes performed by a receiver and a transmitter, where the receiver and the transmitter may exist independently or may be integrated into a transceiver. In one possible implementation, the communication apparatus 1100 may further include: a transceiver.

In one possible approach, the processor 1101 is used to implement the functionality of the configuration module 1001 and the processing module 1004 shown in fig. 10.

It will be appreciated that fig. 11 only shows a simplified design of the communication device. In practical applications, the communication device may include any number of interfaces, processors, memories, etc., and all communication devices that can implement the embodiments of the present application are within the scope of the embodiments of the present application.

Fig. 12 shows a communication system 1200 according to an embodiment of the present application, which includes a first communication apparatus 1201 and a second communication apparatus 1202, where the first communication apparatus 1201 and the second communication apparatus 1202 communicate with each other through a wireless signal.

In the communication system disclosed in the embodiment of the present application, the number of the first communication apparatus 1201 and the second communication apparatus 1202 is not limited. The first communication device 1201 may be embodied as the communication device disclosed in fig. 8 and 9. Optionally, the method may be used to perform corresponding operations executed by the terminal device in the communication method disclosed in the embodiment of the present application. The second communication apparatus 1202 may be embodied as the communication apparatus disclosed in fig. 10 and 11. Optionally, the method may be used to perform corresponding operations performed by the network device in the communication method disclosed in the embodiment of the present application. For the specific processes and the execution principles, reference may be made to the above description, which is not repeated herein.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, 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, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Finally, it should be noted that: the above embodiments are merely intended to illustrate the technical solutions of the present application, and not to limit the same; although the present application and the benefits derived therefrom have been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; but such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present claims.

Claims

1. A method of communication, the method comprising:

according to the first indication information, determining to monitor a wireless link based on the first signal;

if the first signal is a first type of signal, the determining, according to the first indication information, to perform radio link monitoring based on the first signal includes:

determining that a radio link fails after the first timer is overtime, wherein the first timer is stopped when the continuous synchronization times of the radio link are greater than a second preset value, and the radio link is determined to be synchronized when the quality of a downlink control channel based on the first signal is greater than a first threshold value;

if the first signal comprises M signals, wherein M is a positive integer greater than or equal to 2;

when the second timer is overtime, determining that a radio link fails, wherein the second timer is stopped when the continuous synchronization times of the radio link are greater than a second preset value, and when the quality of a downlink control channel based on at least one signal of the M signals is greater than a first threshold value, determining that the radio link is synchronized;

or, the determining, according to the first indication information, to perform radio link monitoring based on the first signal includes:

when the monitoring results corresponding to the M signals all show that the link failure of the corresponding signal occurs, determining that the wireless link fails;

when the monitoring results corresponding to the M signals show that at least one signal does not show the link failure of the corresponding signal, determining that the wireless link does not fail;

the method further comprises the following steps:

sending second indication information to the network equipment, wherein the second indication information is used for indicating the link failure of the corresponding signal;

receiving the first data according to the receiving parameters indicated by the first response message, or determining receiving parameters for receiving the first data according to the sending parameters, and receiving the first data based on the receiving parameters;

further comprising: for a second signal which shows that a link failure of a corresponding signal occurs in the M signals, if the continuous synchronization times based on the second signal are greater than or equal to a third preset value, determining link recovery monitored based on the second signal;

sending third indication information to the network device, wherein the third indication information is used for indicating link restoration of the second signal;

2. The method of claim 1, wherein the first signal is: a signal in a channel state information-reference signal, CSI-RS, or SS-block;

3. The method of claim 1, wherein the M signals correspond to M timers used to control a time window for determining link failures for the M signals.

4. The method according to any one of claims 1 or 3, wherein the M signals include at least: signals in channel state information-reference signals CSI-RS and SS-block;

5. A method of communication, the method comprising:

sending first indication information to the terminal equipment;

the first signal is a first signal;

or the first signal comprises M signals, wherein M is a positive integer greater than or equal to 2;

the method further comprises the following steps:

receiving second indication information from the terminal equipment, wherein the second indication information is used for indicating the link failure of a corresponding signal;

sending a first response message to the terminal device, where the first response message is used to indicate an identifier of a sending parameter and/or a receiving parameter of first data, where the sending parameter is different from a sending parameter of a corresponding signal of a link failure indicated in the second indication information, and the receiving parameter is different from a receiving parameter of a corresponding signal of a link failure indicated in the second indication information;

receiving third indication information from the terminal device, wherein the third indication information is used for indicating link recovery of a second signal;

6. The method of claim 5, wherein the first signal is: a signal in a channel state information-reference signal, CSI-RS, or SS-block;

7. The method of claim 5, wherein the M signals comprise at least: signals in channel state information-reference signals CSI-RS and SS-block;

8. A communication apparatus, characterized in that the communication apparatus comprises: a processor, a memory, a system bus;

the processor and the memory are connected through the system bus;

the memory is to store one or more programs, the one or more programs including instructions, which when executed by the processor, cause the processor to perform the communication method of any of claims 1-4.

9. A communication apparatus, characterized in that the communication apparatus comprises: a processor, a memory, a system bus;

the processor and the memory are connected through the system bus;

the memory is to store one or more programs, the one or more programs comprising instructions, which when executed by the processor, cause the processor to perform the communication method of any of claims 5-7.