WO2023134672A1

WO2023134672A1 - Method and apparatus for determining occurrence of radio link failure in sidelink, and terminal device

Info

Publication number: WO2023134672A1
Application number: PCT/CN2023/071583
Authority: WO
Inventors: 刘星
Original assignee: 展讯通信（上海）有限公司
Priority date: 2022-01-13
Filing date: 2023-01-10
Publication date: 2023-07-20
Also published as: CN116489684A

Abstract

Embodiments of the present application provide a method and apparatus for determining occurrence of a radio link failure (RLF) in a sidelink, and a terminal device. The method comprises: determining that an RLF occurs in N carriers among M carriers of a sidelink, wherein 1 ≤ N ≤ M; and determining that the RLF occurs in the sidelink. By first determining that the RLF occurs in the N carriers of the sidelink, and then determining that the RLF occurs in the sidelink, it is determined in a timely manner that the RLF occurs in a multi-carrier sidelink, thereby avoiding the waste of communication resources of the sidelink.

Description

Method, device and terminal equipment for determining radio link failure in sidelink

This application claims the priority of the Chinese patent application with the application number 202210035183.5 and the application title "Method, device and terminal equipment for determining radio link failure in sidelink" submitted to the China Patent Office on January 13, 2022. The entire contents of which are incorporated by reference in this application.

technical field

The embodiments of the present application relate to the field of wireless communication technologies, and in particular to a method, an apparatus, and a terminal device for determining that a radio link failure occurs in a sidelink.

Background technique

In a cellular network, user equipment (also called terminal equipment) can directly communicate with user equipment in addition to communicating with base station equipment. The communication link between user equipment and user equipment is called a sidelink. , SL), the interface is called PC5 interface.

In the sidelink communication, the terminal device that sends data is the sending terminal device, and the terminal device that receives data is the receiving terminal device. When the sending terminal device and the receiving terminal device perform unicast (unicast) communication, it is necessary to perform link detection to promptly determine whether a link failure occurs. If a link failure occurs, the sending terminal device releases the communication between the receiving terminal device and the receiving terminal device connection, stop sending data, and avoid wasting sidelink communication resources.

In order to improve the throughput rate, a carrier aggregation (CA) mechanism can be introduced on the sidelink, and the sending terminal device and the receiving terminal device can simultaneously perform data transmission through multiple carriers. However, in the prior art, there is no method for judging a link failure of the sidelink in the case of multiple carriers. If the link failure of the sidelink cannot be judged in time, communication resources of the sidelink will be wasted.

Therefore, when there are multiple carriers in the sidelink between the terminal equipment and the terminal equipment, the method for determining and judging the link failure is an urgent problem to be solved in this application.

Contents of the invention

Embodiments of the present application provide a method, an apparatus, and a terminal device for determining that a radio link failure occurs in a sidelink, so as to realize timely judging that a radio link failure occurs in a sidelink.

In the first aspect, the embodiment of the present application provides a method for determining that a wireless link failure occurs in a sidelink, which is applied to a terminal device, and the terminal device communicates through a sidelink, and the sidelink includes M carriers , M is a positive integer greater than or equal to 2, and the method includes: determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink, 1≤N≤M, and N is a positive integer; It is determined that RLF occurs on the sidelink.

The beneficial effect of the first aspect is that when it is determined that a radio link failure RLF occurs on one of the M carriers of the sidelink that is greater than or equal to one, it is determined that RLF occurs on the sidelink, and the timely determination of the occurrence of the sidelink is realized. RLF, to avoid wasting communication resources on the sidelink.

In a possible implementation manner, when N≥2, the determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink includes: when RLF occurs on the first carrier, determining RLF occurs on the second carrier, the characteristic parameter of the second carrier is the same as or similar to that of the first carrier, and the characteristic parameter is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter; wherein, the first The carrier is any carrier in the M carriers, and the second carrier is any carrier in the M carriers except the first carrier.

In a possible implementation manner, the characteristic parameters of the second carrier and the first carrier are the same or similar, including: the frequency band of the second carrier is the same as that of the first carrier.

In a possible implementation manner, when N≥2, the determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink includes: when RLF occurs on the third carrier, adjusting It is used to determine the judgment condition for the occurrence of RLF on the fourth carrier, where the characteristic parameters of the fourth carrier are the same as or similar to those of the third carrier, and the characteristic parameters are used to indicate the carrier characteristic parameters or the channel characteristic parameters corresponding to the carrier characteristic parameters; Wherein, the third carrier is any one of the M carriers, and the fourth carrier is any one of the M carriers except the third carrier.

In a possible implementation manner, the adjustment is used to determine the judgment condition for the occurrence of RLF on the fourth carrier, including: determining that the carrier has RLF without receiving the HARQ feedback signal for P times, and adjusting it to P' If the HARQ feedback signal is not received for the second time, it is determined that RLF occurs on the carrier, P'<P, and both P and P' are positive integers.

In a possible implementation manner, the characteristic parameters of the fourth carrier and the third carrier are the same or similar, including: the fourth carrier and the third carrier belong to the same frequency band.

In a possible implementation manner, when N≥2, the determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink includes: when RLF occurs on the fifth carrier, adjusting A judgment condition for determining that RLF occurs on the sixth carrier, where the characteristic parameters of the sixth carrier are different from or not similar to those of the fifth carrier, and the characteristic parameters are used to indicate the carrier characteristic parameters or the channel characteristic parameters corresponding to the carrier characteristic parameters ; Wherein, the fifth carrier is any one of the M carriers, and the sixth carrier is any one of the M carriers except the fifth carrier.

In a possible implementation manner, the adjustment is used to determine the judgment condition of RLF occurring on the sixth carrier, including: determining that RLF occurs on the carrier without receiving the HARQ feedback signal for P times, and adjusting it to P" If the HARQ feedback signal is not received for the second time, it is determined that RLF occurs on the carrier, P">P, and both P and P" are positive integers.

In a possible implementation manner, the characteristic parameters of the sixth carrier and the fifth carrier are different or not similar, including: the frequency bands of the sixth carrier and the fifth carrier are different.

In the second aspect, the embodiment of the present application provides a device for determining that a wireless link failure occurs in a sidelink, which is applied to a terminal device, and the terminal device communicates through a sidelink, and the sidelink includes M carriers , M is a positive integer greater than or equal to 2, and the device includes: a first determination module, configured to determine that radio link failure RLF occurs in N carriers among the M carriers of the sidelink, 1≤N≤ M and N are positive integers; the second determining module is configured to determine that RLF occurs in the sidelink.

In a possible implementation manner, when N≥2, the first determination module includes: a detection submodule, configured to determine that RLF occurs on the second carrier when RLF occurs on the first carrier, and the second carrier and the The characteristic parameter of the first carrier is the same or similar, and the characteristic parameter is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter; wherein, the first carrier is any one of the M carriers, and the The second carrier is any carrier in the M carriers except the first carrier.

In a possible implementation manner, when N≥2, the first determining module includes: a first condition submodule, configured to adjust the judgment condition for determining that RLF occurs on the fourth carrier when RLF occurs on the third carrier , to reduce the requirement for determining that RLF occurs on the fourth carrier, where the characteristic parameter of the fourth carrier is the same as or similar to that of the third carrier, and the characteristic parameter is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter; Wherein, the third carrier is any one of the M carriers, and the fourth carrier is any one of the M carriers except the third carrier.

In a possible implementation manner, when N≥2, the first determining module includes: a second condition submodule, configured to adjust the judgment condition for determining that RLF occurs on the sixth carrier when RLF occurs on the fifth carrier , to improve the requirement for determining that RLF occurs on the sixth carrier, the characteristic parameter of the sixth carrier is different from or not similar to that of the fifth carrier, and the characteristic parameter is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter ; Wherein, the fifth carrier is any one of the M carriers, and the sixth carrier is any one of the M carriers except the fifth carrier.

In a third aspect, an embodiment of the present application provides a terminal device, including: at least one processor; and at least one memory communicated with the processor, wherein: the memory stores a program executable by the processor Instructions, the processor invokes the program instructions to execute the method provided in the first aspect.

In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the method provided in the first aspect.

It should be understood that the second to fourth aspects of the embodiments of the present application are consistent with the technical solutions of the first aspect of the embodiments of the present application, and the beneficial effects obtained by the various aspects and the corresponding feasible implementation modes are similar, so details are not repeated here.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic flowchart of a method for determining that a wireless link failure occurs in a sidelink provided by an embodiment of the present application;

FIG. 2 is another schematic flow diagram for determining that a wireless link failure occurs in a sidelink provided by an embodiment of the present application;

FIG. 3 is another schematic flow diagram for determining that a wireless link failure occurs in a sidelink provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of another method for determining that a wireless link failure occurs in a sidelink provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an apparatus for determining that a wireless link failure occurs in a sidelink provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a terminal device provided in an embodiment of the present application.

Detailed ways

In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

It should be clear that the described embodiments are only some of the embodiments in this specification, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the description. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

In the existing related art, when the sidelink includes a single carrier, the way for the sidelink to judge that a radio link failure RLF occurs on the link is: when the sending terminal device does not receive the HARQ ( Hybrid automatic repeat request (Hybrid Automatic Repeat Request) feedback signal, it is considered that RLF has occurred on the carrier, and since there is only one carrier, it is considered that the entire link has failed.

When there are multiple carriers on the communication link between the terminal device and the network device, the multiple carriers are divided into main carrier and auxiliary carrier. When RLF occurs on the main carrier, it is considered that RLF has occurred on the link between the terminal device and the network device. .

In order to improve the throughput rate, a carrier aggregation (CA) mechanism can be introduced on the sidelink, and the sending terminal device and the receiving terminal device can simultaneously perform data transmission through multiple carriers. However, in sidelink communication, there is no concept of primary and secondary carriers, and the failure of the entire link cannot be judged by the failure of the primary carrier. In the prior art, there is no method for judging the radio link failure of the sidelink in the case of multiple carriers. If the radio link failure of the sidelink cannot be judged in time, the communication resources of the sidelink will be wasted. .

Therefore, when there are multiple carriers in the sidelink, determining a method for judging that a radio link failure occurs in the sidelink is an urgent problem to be solved in this application.

Based on the above problems, an embodiment of the present application provides a method for determining that a radio link failure occurs in the sidelink, so as to realize timely determination that RLF occurs in the sidelink, and avoid wasting communication resources of the sidelink.

Figure 1 is a schematic flowchart of a method for determining that a radio link failure occurs in a sidelink provided by an embodiment of the present application. As shown in Figure 1, the method for determining a radio link failure in a sidelink is applied to a terminal device, so The terminal device communicates through a sidelink, the sidelink includes M carriers, and M is a positive integer greater than or equal to 2, and the method may include:

Step 101: Determine that radio link failure RLF occurs on N carriers among the M carriers on the sidelink, where 1≤N≤M, and N is a positive integer;

Step 102: Determine that RLF occurs on the sidelink.

It should be noted that the method for determining that a wireless link failure occurs in the sidelink provided by the embodiment of the present application can be applied to a fifth generation (5th Generation, 5G) communication system and a fourth generation (4th Generation, 4G) communication system And the third generation (3rd Generation, 3G) communication system, can also be applicable to various new communication systems in the future, such as the sixth generation (6th Generation, 6G), the seventh generation (7th Generation, 7G) etc., this application implements Examples are not limited to this.

The method for determining that a wireless link failure occurs in the sidelink provided by the embodiment of the present application can also be applied to other different network architectures, including but not limited to a relay network architecture, a dual-link architecture, and communication from a vehicle to any object (Vehicle- to-Everything, V2X) architecture, device-to-device communication (Device-to-Device, D2D) and other architectures.

The terminal device mentioned in the embodiment of the present application may include an access network device and a terminal device. The access network device mentioned in the embodiment of the present application is a device deployed in a radio access network (RAN) to provide a wireless communication function. For example, base station (base station, BS), base station controller, relay node (relay node, RN), etc. Among them, the base station can be a base transceiver station (Base Transceiver Station, BTS) in a 2G network, a node B (NodeB) in a 3G network, and an evolved NodeB (evolved NodeB, eNB) in a 4G network. In the wireless local area network (Wireless Local Area Networks, WLAN), it can be the access point (Access Point, AP), in the 5G new wireless (New Radio, NR), it can be the next generation base station node (Next generation NodeB, gNB), and Continued evolution of Node B (ng-eNB), in which NR technology is used for communication between gNB and terminal equipment, and evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access, E-UTRA) is used between ng-eNB and terminal equipment ) technology for communication, both gNB and ng-eNB can be connected to the 5G core network. The base station in the embodiment of the present application also includes devices that provide base station functions in future new communication systems, and the like. Among them, the base station controller, which can also be called base station controller equipment, is a device for managing base stations, such as the base station controller (Base Station Controller, BSC) in the 2G network, and the radio network controller (Radio Network Controller) in the 3G network. , RNC), can also refer to a device that controls and manages a base station in a new communication system in the future. The terminal equipment mentioned in the embodiments of the present application may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station (Mobile Station, MS), remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device. Terminal equipment can be cellular phones, cordless phones, Session Initiation Protocol (Session Initiation Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital processing (Personal Digital Assistant, PDA), with wireless communication capabilities Handheld devices, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, terminal devices in the future 5G network or terminals in the future evolution of the public land mobile network (Public Land Mobile Network, PLMN) equipment, etc., which are not limited in this embodiment of the present application.

In the sidelink communication under multi-carrier, since the sidelink has no distinction between the primary link and the secondary link, when RLF occurs on one or more carriers in the multi-carrier, terminal devices may still be able to communicate with each other. Sidelink communication may not be possible for sidelink communication, and different judgment conditions can be set for different situations. Therefore, when there are M carriers in the sidelink, if the radio link failure RLF occurs on more than or equal to one carrier among the M carriers, it can be determined that the RLF occurs in the sidelink.

Wherein, the method for judging that RLF occurs in the sidelink may be to determine that RLF occurs in the sidelink when it is determined that RLF occurs in all carriers. For example, when the channel conditions of M carriers are completely different, when it is determined that the sending terminal equipment on each carrier has not received the HARQ feedback signal from the receiving terminal equipment P times, it is judged that a radio link failure RLF occurs on the sidelink , or RLF occurs on the sidelink PC5, and P is a positive integer greater than 1.

Wherein, the method for judging that RLF occurs in the sidelink may also be determining that RLF occurs in the sidelink when it is determined that RLF occurs in one of the M carriers. For example, when the channel conditions of M carriers are exactly the same, when it is determined that the sending terminal equipment on one carrier has not received the HARQ feedback signal from the receiving terminal equipment P times, it is judged that RLF occurs in the sidelink, or the sidelink RLF occurs on road PC5, and P is a positive integer greater than 1.

In addition, in some special scenarios, the method for judging that RLF occurs in the sidelink may also be to determine that RLF occurs in the sidelink when it is determined that RLF occurs in some of the M carriers. For example, there are 5 carriers in total, and when RLF occurs on 3 carriers, it is determined that RLF occurs on the sidelink.

It can be understood that determining the occurrence of RLF on a single carrier is not limited to determining that the sending terminal device on the carrier has not received the HARQ feedback signal from the receiving terminal device for P times. The method of judging RLF by a single carrier is not limited here. In addition to judging the carrier by not receiving the HARQ feedback signal, there may also be other ways to judge. The embodiment of the present application does not limit the method of judging the occurrence of RLF on a single carrier.

The method for determining radio link failure on the sidelink provided by the embodiment of the present application considers that different carriers in the sidelink may have the same or different channel conditions, and RLF on a single carrier or multiple carriers cannot RLF occurs on behalf of the entire link. Therefore, when it is determined that more than or equal to one of the M carriers in the sidelink has radio link failure RLF, it is determined that RLF has occurred in the sidelink, which realizes the timely determination of RLF in the sidelink and avoids wasting sidelinks. Communication resources for the link.

In some embodiments, when it is judged that RLF occurs on multiple carriers of the sidelink, the channel conditions of the multiple carriers may be the same or similar, then when RLF occurs on one carrier, other carriers may be determined according to the relationship between the characteristic parameters of the carrier Carrier RLF occurs.

Fig. 2 is a schematic flow diagram of another method for determining that a wireless link failure occurs in the sidelink provided by the embodiment of the present application. As shown in Fig. 2, in the embodiment of Fig. 1 of the present application, when N≥2, step 101 Can include:

Step 201: When RLF occurs on the first carrier, it is determined that RLF occurs on the second carrier, and the characteristic parameters of the second carrier are the same as or similar to those of the first carrier, and the characteristic parameters are used to indicate the carrier characteristic parameters or the corresponding carrier characteristic parameters channel characteristic parameters; wherein, the first carrier is any one of the M carriers, and the second carrier is any one of the M carriers except the first carrier.

It should be noted that, considering that the antennas corresponding to the first carrier and the second carrier in the sidelink may be very close, the channel conditions of the first carrier and the second carrier are almost the same, when the carrier characteristics of the two carriers When the parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter is the same or similar, the working conditions of the two carriers are likely to be relatively close. Then when it is determined that RLF has occurred on the first carrier, there is a high probability that RLF has occurred on the second carrier. Therefore, when RLF occurs on the first carrier, if the carrier characteristic parameter or carrier characteristic parameter corresponding to the second carrier is the same as or similar to that of the first carrier, it is determined that RLF occurs on the second carrier. The above method can speed up the speed of determining the occurrence of RLF in the sidelink, and avoid wasting sidelink resources.

Further, the characteristic parameter of the second carrier being the same as or similar to that of the first carrier may include: the frequency band of the second carrier is the same as that of the first carrier.

It should be noted that the first carrier and the second carrier in the sidelink may belong to the same frequency band, for example, both are low-frequency carriers, or both are FR1 (Frequency Range 1) in 3GPP, or both are high-frequency carriers. Or both are FR2 (Frequency Range 2) in 3GPP. In this case, it is considered that the channel characteristics of the first carrier and the second carrier are the same. When the channel characteristics of the first carrier and the second carrier are the same, when RLF occurs on the first carrier, RLF occurs on the second carrier with a high probability, so it can be determined that RLF occurs on the second carrier.

It can be understood that the characteristic parameter here is not limited to the frequency band corresponding to the carrier, but may also be other carrier characteristic parameters or channel characteristic parameters corresponding to the carrier characteristic parameter. The embodiment of the present application does not limit the type of the characteristic parameter.

In addition, the method for determining that RLF occurs on the second carrier in the above embodiment may be applied to every carrier in the sidelink except the first carrier. When it is determined that RLF occurs on the first carrier in the sidelink, each of the remaining carriers can be used as the second carrier in turn, and the relationship between the characteristic parameters of the second carrier and the first carrier can be compared to determine whether the second carrier When RLF occurs, it is finally determined that RLF occurs on N carriers, and it is determined that RLF occurs on the sidelink. For example, if the sidelink only includes two carriers, then there is only one second carrier, and it is enough to perform the above-mentioned method for judging the occurrence of RLF on the second carrier once; if the sidelink includes three carriers, then there are two second carriers. Both the carrier and the two second carriers need to perform the above method for judging that RLF occurs on the second carrier to determine whether RLF occurs on the two carriers, and when the conditions for RLF to occur on N carriers are met, it is determined that RLF occurs on the sidelink.

In some embodiments, multiple carriers of the sidelink may have the same or similar channel conditions, so when RLF occurs on one carrier, it may not be judged that RLF occurs on the sidelink temporarily, but other carriers are used to determine that RLF occurs on the carrier The judgment condition of can be adjusted according to the relationship between the characteristic parameters of the carriers, so as to speed up the speed of determining that RLF occurs on other carriers.

Fig. 3 is another schematic flow diagram for determining that a wireless link failure occurs in the sidelink provided by the embodiment of the present application. As shown in Fig. 3, in the embodiment of Fig. 1 of the present application, when N≥2, step 101 Can include:

Step 301: When RLF occurs on the third carrier, adjust the judgment condition for determining that RLF occurs on the fourth carrier, the characteristic parameter of the fourth carrier is the same as or similar to that of the third carrier, and the characteristic parameter is used to indicate the characteristic of the carrier parameters or channel characteristic parameters corresponding to carrier characteristic parameters; wherein, the third carrier is any one of the M carriers, and the fourth carrier is any of the M carriers except the third carrier a carrier.

It should be noted that considering that the channel conditions of the third carrier and the fourth carrier in the sidelink may be the same or similar, but when RLF occurs on the third carrier, it is directly judged that RLF occurs on the fourth carrier according to the channel condition There may be an error, so another way is to change the judgment condition for determining that RLF occurs on the fourth carrier according to the relationship between the characteristic parameters of the third carrier and the fourth carrier. For example, when RLF occurs on the third carrier, if the characteristic parameters of the fourth carrier are the same or similar to those of the third carrier, adjust the judgment conditions for determining that RLF occurs on the fourth carrier to reduce the requirement for determining that RLF occurs on the fourth carrier . Since the requirements for determining the occurrence of RLF on the fourth carrier are reduced, the speed of determining the occurrence of RLF on the fourth carrier can be accelerated, and at the same time, the accuracy of the judgment result can be ensured.

Further, the adjustment is used to determine the judgment condition for determining that RLF occurs on the fourth carrier, including: determining that RLF occurs on the carrier without receiving the HARQ feedback signal for P times, and adjusting it to determine that the HARQ feedback signal is not received for P' times Carrier RLF occurs, P'<P, P and P' are both positive integers.

It should be noted that, since the HARQ feedback signal is used to determine whether RLF occurs on the carrier, the premise of dependence is that there is data transmission on the carrier, and there will be feedback only when there is data transmission. RLF has not occurred on other carriers, it may be because there is no data transmission on other carriers Or the number of data transmissions is not enough. Since RLF has occurred on some carriers, other carriers still judge that RLF has not received P times of HARQ feedback. This will prolong the time to find other link failures and waste air interface resources.

Therefore, when RLF occurs on the third carrier, the judgment condition used to determine that RLF occurs on the fourth carrier is adjusted, and the hybrid automatic repeat request feedback HARQ feedback signal is not received for P times to determine that RLF occurs on the carrier, and adjusted to P' times when RLF is not received The HARQ feedback signal determines that RLF occurs on the carrier, P'<P, and by reducing the number of times that the HARQ feedback signal is not received, it can be determined as soon as possible whether RLF occurs on the fourth carrier.

Further, the characteristic parameters of the fourth carrier and the third carrier are the same or similar, including: the frequency band of the fourth carrier is the same as that of the third carrier.

It should be noted that the third carrier and the fourth carrier in the sidelink may belong to the same frequency band, for example, both are low-frequency carriers, or both are FR1 (Frequency Range 1) in 3GPP, or both are high-frequency carriers. Or both are FR2 (Frequency Range 2) in 3GPP. In this case, it is considered that the channel characteristics of the third carrier and the fourth carrier are the same. When the channel characteristics of the third carrier and the fourth carrier are the same, when RLF occurs on the third carrier, RLF may also occur on the fourth carrier, so in the conditions for determining the occurrence of RLF on the fourth carrier, the P' value can be relative to the P value Setting it smaller and adopting different P' configurations can improve the speed of determining that the radio link failure occurs in the sidelink.

In addition, the characteristic parameter here is not limited to the frequency band corresponding to the carrier, but may also be other carrier characteristic parameters or channel characteristic parameters corresponding to the carrier characteristic parameter. The embodiment of the present application does not limit the type of the characteristic parameter.

It can be understood that, the method for adjusting the judgment condition for determining the occurrence of RLF on the fourth carrier in the embodiment of the present application may be applied to every carrier in the sidelink except the third carrier. When it is determined that RLF occurs on the third carrier in the sidelink, each of the remaining carriers is used as a fourth carrier, and the relationship between the characteristic parameters of the fourth carrier and the third carrier is compared, so as to adjust and determine the fourth carrier The determination condition for the occurrence of RLF finally determines whether RLF occurs in N carriers, which speeds up the determination of radio link failure in the sidelink and saves communication resources.

In some embodiments, the channel conditions of multiple carriers of the sidelink may be completely different or dissimilar, so when RLF occurs on one carrier, it may not be judged that RLF occurs on the sidelink temporarily, but other carriers may be used to determine The conditions for judging the occurrence of RLF on a carrier can be adjusted according to the relationship between the characteristic parameters of the carrier, so as to improve the accuracy of determining the occurrence of RLF on other carriers.

Fig. 4 is a schematic flow diagram of another method for determining that a wireless link failure occurs in the sidelink provided by the embodiment of the present application. As shown in Fig. 4, in the embodiment of Fig. 1 of the present application, when N≥2, step 101 Can include:

Step 401: When RLF occurs on the fifth carrier, adjust the judgment condition for determining that RLF occurs on the sixth carrier, the characteristic parameters of the sixth carrier and the fifth carrier are different or not similar, and the characteristic parameters are used to indicate the carrier A characteristic parameter or a channel characteristic parameter corresponding to a carrier characteristic parameter; wherein, the fifth carrier is any one of the M carriers, and the sixth carrier is one of the M carriers except the fifth carrier any carrier.

It should be noted that, considering that the channel conditions of the fifth carrier and the sixth carrier in the sidelink may be different or dissimilar, in general, when it is determined that RLF occurs on the fifth carrier, the probability of RLF occurring on the sixth carrier Not much, in order to avoid misjudgment of RLF on the sixth carrier, the judgment condition for determining the occurrence of RLF on the sixth carrier may be changed according to the relationship between the characteristic parameters of the fifth carrier and the sixth carrier. For example, when RLF occurs on the fifth carrier, if the characteristic parameters of the fifth carrier and the sixth carrier are different or not similar, adjust the judgment conditions for determining that RLF occurs on the sixth carrier, so as to improve the probability of determining that RLF occurs on the sixth carrier. Require. Since the requirement for determining the occurrence of RLF on the sixth carrier is increased, the accuracy of the judgment result can be guaranteed.

Further, the adjustment is used to determine the judgment condition that RLF occurs on the sixth carrier, including: determining that RLF occurs on the carrier without receiving the HARQ feedback signal for P times, and adjusting it to P" times without receiving the HARQ feedback signal for determination Carrier RLF occurs, P">P, P and P" are both positive integers.

It should be noted that when RLF occurs on the fifth carrier, adjust the judgment condition used to determine that RLF occurs on the sixth carrier, and adjust it to P" times if no hybrid automatic repeat request feedback HARQ feedback signal is received for P times to determine that RLF occurs on the carrier If the HARQ feedback signal is not received, it is determined that RLF occurs on the carrier, P">P. By increasing the number of times that the HARQ feedback signal is not received, the accuracy of determining the occurrence of RLF on the sixth carrier can be ensured.

Further, the characteristic parameters of the sixth carrier and the fifth carrier are different or not similar, including: the frequency bands of the sixth carrier and the fifth carrier are different.

It should be noted that the fifth carrier and the sixth carrier in the sidelink may belong to different frequency bands, for example, one is a low-frequency carrier and the other is a high-frequency carrier, or one is FR1 (Frequency Range 1) in 3GPP, and the other is One is FR2 (Frequency Range 2) in 3GPP. In this case, it is considered that the channel characteristics of the third carrier and the fourth carrier are different. When the channel characteristics of the fifth carrier and the sixth carrier are different, when RLF occurs on the fifth carrier, there is a high probability that RLF will not occur on the sixth carrier. Therefore, in the conditions for determining the occurrence of RLF on the sixth carrier, the value of P" is relative to P The value can be set to be larger, and different P” configurations can be used to improve the accuracy of determining the radio link failure of the sidelink.

It can be understood that, the method for adjusting the determination condition for determining the occurrence of RLF on the sixth carrier in the embodiment of the present application may be applied to every carrier in the sidelink except the fifth carrier. When it is determined that RLF occurs on the fifth carrier in the sidelink, each of the remaining carriers is regarded as a sixth carrier, and the relationship between the characteristic parameters of the sixth carrier and the fifth carrier is compared, so as to adjust and determine the sixth carrier The judgment condition for occurrence of RLF improves the accuracy of determining the failure of the wireless link of the sidelink, and saves communication resources.

Fig. 5 is a schematic structural diagram of an apparatus for determining radio link failure in a sidelink provided by an embodiment of the present application, which is applied to a terminal device, and the terminal device communicates through a sidelink, and the sidelink includes M carriers, M is a positive integer greater than or equal to 2, as shown in Figure 5, the device includes a first determination module 501 and a second determination module 502; wherein,

The first determination module 501 is configured to determine that radio link failure RLF occurs on N carriers among the M carriers of the sidelink, where 1≤N≤M, and N is a positive integer;

The second determining module 502 is configured to determine that RLF occurs in the sidelink.

In some embodiments, when N≥2, the first determination module 501 includes: a detection submodule, configured to determine that RLF occurs on a second carrier when RLF occurs on the first carrier, and the second carrier and the first carrier The characteristic parameters of a carrier are the same or similar, and the characteristic parameter is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter; wherein, the first carrier is any one of the M carriers, and the second The second carrier is any carrier in the M carriers except the first carrier.

In some embodiments, when N≥2, the first determining module 501 includes: a first condition submodule, configured to adjust the judgment condition for determining that RLF occurs on the fourth carrier when RLF occurs on the third carrier, to Reduce the requirement for determining that RLF occurs on the fourth carrier, where the characteristic parameters of the fourth carrier are the same as or similar to those of the third carrier, and the characteristic parameters are used to indicate the carrier characteristic parameters or the channel characteristic parameters corresponding to the carrier characteristic parameters; wherein, The third carrier is any carrier in the M carriers, and the fourth carrier is any carrier in the M carriers except the third carrier.

In some embodiments, when N≥2, the first determining module 501 includes: a second condition submodule, configured to adjust the judgment condition for determining that RLF occurs on the sixth carrier when RLF occurs on the fifth carrier, to Improve the requirement for determining that RLF occurs on the sixth carrier, where the characteristic parameters of the sixth carrier are different or not similar to those of the fifth carrier, and the characteristic parameters are used to indicate the carrier characteristic parameters or the channel characteristic parameters corresponding to the carrier characteristic parameters; wherein , the fifth carrier is any one of the M carriers, and the sixth carrier is any one of the M carriers except the fifth carrier.

The device for determining that a wireless link failure occurs in the sidelink provided by the embodiment shown in Figure 5 can be used to implement the technical solution of the method embodiment shown in Figure 1 of this specification, and its realization principle and technical effect can be further referred to in the method embodiment related description.

FIG. 6 is a schematic structural diagram of a terminal device provided by an embodiment of the present application, and FIG. 6 may be a schematic structural diagram of a terminal device that applies the method for determining radio link failure in a sidelink provided by an embodiment of the present application. As shown in Figure 6, the terminal device may include at least one processor; and at least one memory communicated with the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions The method for determining that a radio link failure occurs in the sidelink provided by the embodiments shown in FIGS. 1 to 4 of this specification can be implemented.

Wherein, the above-mentioned terminal device may be an access network device, a smart phone, a tablet computer, or a notebook computer, and other smart electronic devices, and this embodiment does not limit the form of the above-mentioned terminal device.

Exemplarily, FIG. 6 shows a schematic structural diagram of a terminal device by taking a smart phone as an example. As shown in FIG. bus, USB) interface 130, charging management module 140, power management module 141, battery 142, sensor module 180, button 190, motor 191, indicator 192, camera 193, display screen 194, etc. The sensor module 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, bone conduction sensor 180M, etc. Further, when the electronic device is a mobile phone, the electronic device may also include: antenna 1, antenna 2, mobile communication module 150, wireless communication module 160, audio module 170, speaker 170A, receiver 170B, microphone 170C, earphone An interface 170D, and a subscriber identification module (subscriber identification module, SIM) card interface 195, etc.

It can be understood that, the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the electronic device 100 . In other embodiments of the present application, the electronic device 100 may include more or fewer components than shown in the figure, or combine certain components, or separate certain components, or arrange different components. The illustrated components can be realized in hardware, software or a combination of software and hardware.

The processor 110 may include one or more processing units, for example: the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processing unit (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural network processor (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors.

Wherein, the controller may be the nerve center and command center of the electronic equipment. The controller can generate an operation control signal according to the instruction opcode and timing signal, and complete the control of fetching and executing the instruction.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. Repeated access is avoided, and the waiting time of the processor 110 is reduced, thereby improving the efficiency of the system.

In some embodiments, processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transmitter (universal asynchronous receiver/transmitter, UART) interface, mobile industry processor interface (mobile industry processor interface, MIPI), general-purpose input and output (general-purpose input/output, GPIO) interface, subscriber identity module (subscriber identity module, SIM) interface, and /or universal serial bus (universal serial bus, USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus, including a serial data line (serial data line, SDA) and a serial clock line (derail clock line, SCL). In some embodiments, processor 110 may include multiple sets of I2C buses. The processor 110 can be respectively coupled to the touch sensor 180K, the charger, the flashlight, the camera 193 and the like through different I2C bus interfaces. For example, the processor 110 may be coupled to the touch sensor 180K through the I2C interface, so that the processor 110 and the touch sensor 180K communicate through the I2C bus interface to realize the touch function of the electronic device 100 .

The I2S interface can be used for audio communication. In some embodiments, processor 110 may include multiple sets of I2S buses. The processor 110 may be coupled to the audio module 170 through an I2S bus to implement communication between the processor 110 and the audio module 170 . In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the I2S interface, so as to realize the function of answering calls through the Bluetooth headset.

The PCM interface can also be used for audio communication, sampling, quantizing and encoding the analog signal. In some embodiments, the audio module 170 and the wireless communication module 160 may be coupled through a PCM bus interface. In some embodiments, the audio module 170 can also transmit audio signals to the wireless communication module 160 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communication. The bus can be a bidirectional communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, a UART interface is generally used to connect the processor 110 and the wireless communication module 160 . For example: the processor 110 communicates with the Bluetooth module in the wireless communication module 160 through the UART interface to realize the Bluetooth function. In some embodiments, the audio module 170 can transmit audio signals to the wireless communication module 160 through the UART interface, so as to realize the function of playing music through the Bluetooth headset.

The MIPI interface can be used to connect the processor 110 with peripheral devices such as the display screen 194 and the camera 193 . MIPI interface includes camera serial interface (camera serial interface, CSI), display serial interface (display serial interface, DSI), etc. In some embodiments, the processor 110 communicates with the camera 193 through the CSI interface to realize the shooting function of the electronic device 100 . The processor 110 communicates with the display screen 194 through the DSI interface to realize the display function of the electronic device 100 .

The GPIO interface can be configured by software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 110 with the camera 193 , the display screen 194 , the wireless communication module 160 , the audio module 170 , the sensor module 180 and so on. The GPIO interface can also be configured as I15c interface, I14S interface, UART interface, MIPI interface, etc.

The USB interface 130 is an interface conforming to the USB standard specification, specifically, it can be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 can be used to connect a charger to charge the electronic device 100 , and can also be used to transmit data between the electronic device 100 and peripheral devices. It can also be used to connect headphones and play audio through them. This interface can also be used to connect other electronic devices, such as AR devices.

It can be understood that the interface connection relationship between the modules shown in the embodiment of the present invention is only a schematic illustration, and does not constitute a structural limitation of the electronic device 100 . In other embodiments of the present application, the electronic device 100 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.

The charging management module 140 is configured to receive a charging input from a charger. Wherein, the charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 can receive charging input from the wired charger through the USB interface 130 . In some wireless charging embodiments, the charging management module 140 may receive a wireless charging input through a wireless charging coil of the electronic device 100 . While the charging management module 140 is charging the battery 142 , it can also supply power to the electronic device through the power management module 141 .

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives the input from the battery 142 and/or the charging management module 140 to provide power for the processor 110 , the internal memory 121 , the display screen 194 , the camera 193 , and the wireless communication module 160 . The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be disposed in the processor 110 . In some other embodiments, the power management module 141 and the charging management module 140 can also be set in the same device.

The wireless communication function of the electronic device 100 can be realized by the antenna 1 , the antenna 2 , the mobile communication module 150 , the wireless communication module 160 , a modem processor, a baseband processor, and the like.

Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 100 may be used to cover single or multiple communication frequency bands. Different antennas can also be multiplexed to improve the utilization of the antennas. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G applied on the electronic device 100 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier (low noise amplifier, LNA) and the like. The mobile communication module 150 can receive electromagnetic waves through the antenna 1, filter and amplify the received electromagnetic waves, and send them to the modem processor for demodulation. The mobile communication module 150 can also amplify the signals modulated by the modem processor, and convert them into electromagnetic waves and radiate them through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be set in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 and at least part of the modules of the processor 110 may be set in the same device.

A modem processor may include a modulator and a demodulator. Wherein, the modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator sends the demodulated low-frequency baseband signal to the baseband processor for processing. The low-frequency baseband signal is passed to the application processor after being processed by the baseband processor. The application processor outputs sound signals through audio equipment (not limited to speaker 170A, receiver 170B, etc.), or displays images or videos through display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In some other embodiments, the modem processor may be independent from the processor 110, and be set in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide wireless local area networks (wireless local area networks, WLAN) (such as wireless fidelity (Wireless Fidelity, Wi-Fi) network), bluetooth (bluetooth, BT), global navigation satellite, etc. applied on the electronic device 100. System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency-modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , frequency-modulate it, amplify it, and convert it into electromagnetic waves through the antenna 2 for radiation.

In some embodiments, the antenna 1 of the electronic device 100 is coupled to the mobile communication module 150, and the antenna 2 is coupled to the wireless communication module 160, so that the electronic device 100 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include Global System for Mobile Communications (g l o b a l s y s t e m f o r m o b i l ecommunications, GSM), general packet radio service (general packet radio service, GPRS), Code division multiple access (CDMA), wideband code division multiple access (WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution ( long term evolution, LTE), BT, GNSS, WLAN, NFC, FM, and/or IR technologies, etc. The GNSS may include a global positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a Beidou navigation satellite system (beidou navigation satellite system, BDS), a quasi-zenith satellite system (quasi -zenithsatellite system (QZSS) and/or satellite based augmentation systems (SBAS).

The electronic device 100 realizes the display function through the GPU, the display screen 194 , and the application processor. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. GPUs are used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 194 is used to display images, videos and the like. The display screen 194 includes a display panel. The display panel can adopt liquid crystal display (liquid crystal display, LCD), organic light-emitting diode (organic light-emitting diode, OLED), active-matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrixorganic light-emitting diode) , AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diodes (quantum dot light emitting diodes, QLED), etc. In some embodiments, the electronic device 100 may include 1 or N display screens 194 , where N is a positive integer greater than 1.

A series of graphical user interfaces (graphical user interface, GUI) can be displayed on the display screen 194 of the electronic device, and these GUIs are the main screen of the electronic device. Generally, the size of the display screen 194 of the electronic device is fixed, and only limited controls can be displayed on the display screen 194 of the electronic device. A control is a GUI element, which is a software component contained in an application that controls all data processed by the application and the interaction of these data. Users can interact with the control through direct manipulation. , so as to read or edit the relevant information of the application. Generally speaking, controls may include visual interface elements such as icons, buttons, menus, tabs, text boxes, dialog boxes, status bars, navigation bars, and Widgets. For example, in the embodiment of the present application, the display screen 194 may display virtual keys.

The electronic device 100 can realize the shooting function through the ISP, the camera 193 , the video codec, the GPU, the display screen 194 and the application processor.

The ISP is used for processing the data fed back by the camera 193 . For example, when taking a picture, open the shutter, the light is transmitted to the photosensitive element of the camera through the lens, and the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing, and converts it into an image visible to the naked eye. ISP can also perform algorithm optimization on image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be located in the camera 193 .

Camera 193 is used to capture still images or video. The object generates an optical image through the lens and projects it to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transmits the electrical signal to the ISP for conversion into a digital image signal. The ISP outputs the digital image signal to the DSP for processing. DSP converts digital image signals into standard RGB, YUV and other image signals. In some embodiments, the electronic device 100 may include 1 or N cameras 193 , where N is a positive integer greater than 1.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the electronic device 100 selects a frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The electronic device 100 may support one or more video codecs. In this way, the electronic device 100 can play or record videos in various encoding formats, for example: moving picture experts group (moving picture experts group, MPEG) 1, MPEG2, MPEG3, MPEG4 and so on.

The NPU is a neural-network (NN) computing processor. By referring to the structure of biological neural networks, such as the transfer mode between neurons in the human brain, it can quickly process input information and continuously learn by itself. Applications such as intelligent cognition of the electronic device 100 can be realized through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, so as to expand the storage capacity of the electronic device 100. The external memory card communicates with the processor 110 through the external memory interface 120 to implement a data storage function. Such as saving music, video and other files in the external memory card.

The internal memory 121 may be used to store computer-executable program codes including instructions. The internal memory 121 may include an area for storing programs and an area for storing data. Wherein, the stored program area can store an operating system, at least one application program required by a function (such as a sound playing function, an image playing function, etc.) and the like. The storage data area can store data created during the use of the electronic device 100 (such as audio data, phonebook, etc.) and the like. In addition, the internal memory 121 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, universal flash memory (universal flash storage, UFS) and the like. The processor 110 executes various functional applications and data processing of the electronic device 100 by executing instructions stored in the internal memory 121 and/or instructions stored in a memory provided in the processor.

The electronic device 100 can implement audio functions through the audio module 170 , the speaker 170A, the receiver 170B, the microphone 170C, the earphone interface 170D, and the application processor. Such as music playback, recording, etc.

The audio module 170 is used to convert digital audio information into analog audio signal output, and is also used to convert analog audio input into digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be set in the processor 110 , or some functional modules of the audio module 170 may be set in the processor 110 .

Speaker 170A, also referred to as a "horn", is used to convert audio electrical signals into sound signals. Electronic device 100 can listen to music through speaker 170A, or listen to hands-free calls.

Receiver 170B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the electronic device 100 receives a call or a voice message, the receiver 170B can be placed close to the human ear to receive the voice.

The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a phone call or sending a voice message, the user can put his mouth close to the microphone 170C to make a sound, and input the sound signal to the microphone 170C. The electronic device 100 may be provided with at least one microphone 170C. In some other embodiments, the electronic device 100 may be provided with two microphones 170C, which may also implement a noise reduction function in addition to collecting sound signals. In some other embodiments, the electronic device 100 can also be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions, etc.

The earphone interface 170D is used for connecting wired earphones. The earphone interface 170D may be a USB interface 130, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association of the USA (CTIA) standard interface.

The pressure sensor 180A is used to sense the pressure signal and convert the pressure signal into an electrical signal. In some embodiments, pressure sensor 180A may be disposed on display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, and capacitive pressure sensors. A capacitive pressure sensor may be comprised of at least two parallel plates with conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 100 determines the intensity of pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the electronic device 100 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 100 may also calculate the touched position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example: when a touch operation with a touch operation intensity less than the first pressure threshold acts on the short message application icon, an instruction to view short messages is executed. When a touch operation whose intensity is greater than or equal to the first pressure threshold acts on the icon of the short message application, the instruction of creating a new short message is executed.

The gyro sensor 180B can be used to determine the motion posture of the electronic device 100 . In some embodiments, the angular velocity of the electronic device 100 around three axes (ie, x, y and z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 180B detects the shaking angle of the electronic device 100, calculates the distance that the lens module needs to compensate according to the angle, and allows the lens to counteract the shaking of the electronic device 100 through reverse movement to achieve anti-shake. The gyro sensor 180B can also be used for navigation and somatosensory game scenes.

The air pressure sensor 180C is used to measure air pressure. In some embodiments, the electronic device 100 calculates the altitude based on the air pressure value measured by the air pressure sensor 180C to assist positioning and navigation.

The magnetic sensor 180D includes a Hall sensor. The electronic device 100 may use the magnetic sensor 180D to detect the opening and closing of the flip leather case. In some embodiments, when the electronic device 100 is a clamshell machine, the electronic device 100 can detect opening and closing of the clamshell according to the magnetic sensor 180D. Furthermore, according to the detected opening and closing state of the leather case or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set.

The acceleration sensor 180E can detect the acceleration of the electronic device 100 in various directions (generally three axes). The magnitude and direction of gravity can be detected when the electronic device 100 is stationary. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.

The distance sensor 180F is used to measure the distance. The electronic device 100 may measure the distance by infrared or laser. In some embodiments, when shooting a scene, the electronic device 100 may use the distance sensor 180F for distance measurement to achieve fast focusing.

Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes. The light emitting diodes may be infrared light emitting diodes. The electronic device 100 emits infrared light through the light emitting diode. Electronic device 100 uses photodiodes to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it may be determined that there is an object near the electronic device 100 . When insufficient reflected light is detected, the electronic device 100 may determine that there is no object near the electronic device 100 . The electronic device 100 can use the proximity light sensor 180G to detect that the user is holding the electronic device 100 close to the ear to make a call, so as to automatically turn off the screen to save power. The proximity light sensor 180G can also be used in leather case mode, automatic unlock and lock screen in pocket mode.

The ambient light sensor 180L is used for sensing ambient light brightness. The electronic device 100 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the electronic device 100 is in the pocket, so as to prevent accidental touch.

The fingerprint sensor 180H is used to collect fingerprints. The electronic device 100 can use the collected fingerprint characteristics to implement fingerprint unlocking, access to application locks, take pictures with fingerprints, answer incoming calls with fingerprints, and the like.

The temperature sensor 180J is used to detect temperature. In some embodiments, the electronic device 100 uses the temperature detected by the temperature sensor 180J to implement a temperature treatment strategy. For example, when the temperature reported by the temperature sensor 180J exceeds the threshold, the electronic device 100 may reduce the performance of the processor located near the temperature sensor 180J, so as to reduce power consumption and implement thermal protection. In some other embodiments, when the temperature is lower than another threshold, the electronic device 100 heats the battery 142, so as to avoid abnormal shutdown of the electronic device 100 caused by the low temperature. In some other embodiments, when the temperature is lower than another threshold, the electronic device 100 boosts the output voltage of the battery 142 to avoid abnormal shutdown caused by low temperature.

The touch sensor 180K is also called "touch device". The touch sensor 180K can be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a “touch screen”. The touch sensor 180K is used to detect a touch operation on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to the touch operation can be provided through the display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 100 , which is different from the position of the display screen 194 .

The bone conduction sensor 180M can acquire vibration signals. In some embodiments, the bone conduction sensor 180M can acquire the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 180M can also contact the human pulse and receive the blood pressure beating signal. In some embodiments, the bone conduction sensor 180M can also be disposed in the earphone, combined into a bone conduction earphone. The audio module 170 can analyze the voice signal based on the vibration signal of the vibrating bone mass of the vocal part acquired by the bone conduction sensor 180M, so as to realize the voice function. The application processor can analyze the heart rate information based on the blood pressure beating signal acquired by the bone conduction sensor 180M, so as to realize the heart rate detection function. [0268] The button 190 includes a power button, a volume button, and the like. The key 190 may be a mechanical key. It can also be a touch button. The electronic device 100 may receive key input and generate key signal input related to user settings and function control of the electronic device 100 .

The motor 191 can generate a vibrating reminder. The motor 191 can be used for incoming call vibration prompts, and can also be used for touch vibration feedback. For example, touch operations applied to different applications (such as taking pictures, playing audio, etc.) may correspond to different vibration feedback effects. The motor 191 may also correspond to different vibration feedback effects for touch operations acting on different areas of the display screen 194 . Different application scenarios (for example: time reminder, receiving information, alarm clock, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

The indicator 192 can be an indicator light, which can be used to indicate the charging status, the change of the battery capacity, and can also be used to indicate messages, missed calls, notifications, etc.

The SIM card interface 195 is used for connecting a SIM card. The SIM card can be connected and separated from the electronic device 100 by inserting it into the SIM card interface 195 or pulling it out from the SIM card interface 195 . The electronic device 100 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. SIM card interface 195 can support Nano SIM card, Micro SIM card, SIM card etc. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the multiple cards may be the same or different. The SIM card interface 195 is also compatible with different types of SIM cards. The SIM card interface 195 is also compatible with external memory cards. The electronic device 100 interacts with the network through the SIM card to implement functions such as calling and data communication. In some embodiments, the electronic device 100 adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the electronic device 100 and cannot be separated from the electronic device 100 .

In addition, an operating system runs on top of the above components. For example, the iOS operating system developed by Apple, the Android operating system developed by Google, and the Windows operating system developed by Microsoft. Applications can be installed and run on this operating system.

Wherein, the electronic device involved in the embodiment of the present application may be installed with an iOS operating system, an Android operating system or a Windows operating system, or the electronic device may also be installed with other operating systems, which is not limited in the embodiment of the present application.

It should be noted that the top, bottom, left, right, and upper and lower mentioned in the embodiments of the present application are relative, and are exemplary descriptions in specific implementation manners, and should not be construed as limiting the embodiments of the present application.

An embodiment of the present application provides a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the determined side chain provided by the embodiments shown in Figures 1 to 4 of this specification method in which a radio link failure occurs.

The above-mentioned computer-readable storage medium may adopt any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of computer-readable storage media include: electrical connections with one or more conductors, portable computer disks, hard disks, random access memory (RAM), read only memory , ROM), erasable programmable read only memory (erasable programmable read only memory, EPROM) or flash memory, optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any of the above the right combination. In this document, a computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer readable signal medium may include a data signal carrying computer readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including - but not limited to - electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device. .

Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including - but not limited to - wireless, wire, optical cable, radio frequency (RF), etc., or any suitable combination of the foregoing.

Computer program code for carrying out the operations described herein can be written in one or more programming languages, or combinations thereof, including object-oriented programming languages—such as Java, Smalltalk, C++, and conventional Procedural Programming Language - such as "C" or a similar programming language. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In cases involving a remote computer, the remote computer can be connected to the user computer through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer such as use an Internet service provider to connect via the Internet).

The foregoing describes specific embodiments of this specification. Other implementations are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. Multitasking and parallel processing are also possible or may be advantageous in certain embodiments.

In the description of the embodiments of the present invention, descriptions referring to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the descriptions described in conjunction with the embodiments or examples A particular feature, structure, material, or characteristic is included in at least one embodiment or example of the present specification. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this specification, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of a process , and the scope of preferred embodiments of this specification includes alternative implementations in which functions may be performed out of the order shown or discussed, including in substantially simultaneous fashion or in reverse order depending on the functions involved, which shall It should be understood by those skilled in the art to which the embodiments of this specification belong.

Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to determining" or "in response to detecting". Similarly, depending on the context, the phrases "if determined" or "if detected (the stated condition or event)" could be interpreted as "when determined" or "in response to the determination" or "when detected (the stated condition or event) )" or "in response to detection of (a stated condition or event)".

It should be noted that the terminals involved in the embodiments of the present application may include, but are not limited to, personal computers (personal computers, PCs), personal digital assistants (personal digital assistants, PDAs), wireless handheld devices, tablet computers (tablet computers), Mobile phones, MP3 players, MP4 players, etc.

In the several embodiments provided in this specification, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined Or it can be integrated into another system, or some features can be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

In addition, each functional unit in each embodiment of this specification may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units may be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) or processor (processor) to execute the methods described in the various embodiments of this specification. partial steps. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, and other media capable of storing program codes.

The above descriptions are only preferred embodiments of this specification, and are not intended to limit this specification. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this specification shall be included in this specification. within the scope of protection.

Claims

A method for determining that a wireless link failure occurs in a sidelink, characterized in that it is applied to a terminal device, and the terminal device communicates through a sidelink, and the sidelink includes M carriers, and M is greater than or Equal to the positive integer of 2, described method comprises:

Determine that radio link failure RLF occurs on N carriers among the M carriers of the sidelink, where 1≤N≤M, and N is a positive integer;

It is determined that RLF occurs on the sidelink.
The method according to claim 1, wherein when N≥2, the determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink includes:

When RLF occurs on the first carrier, it is determined that RLF occurs on the second carrier, the characteristic parameter of the second carrier is the same as or similar to that of the first carrier, and the characteristic parameter is used to indicate the carrier characteristic parameter or the channel characteristic corresponding to the carrier characteristic parameter parameter; wherein, the first carrier is any one of the M carriers, and the second carrier is any one of the M carriers except the first carrier.
The method according to claim 2, wherein the characteristic parameters of the second carrier are the same or similar to those of the first carrier, comprising:

The frequency band of the second carrier is the same as that of the first carrier.
The method according to claim 2, wherein when N≥2, the determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink includes:

When RLF occurs on the third carrier, adjust the judgment condition for determining that RLF occurs on the fourth carrier, the characteristic parameter of the fourth carrier is the same as or similar to that of the third carrier, and the characteristic parameter is used to indicate the characteristic parameter of the carrier or the carrier A channel characteristic parameter corresponding to the characteristic parameter; wherein, the third carrier is any one of the M carriers, and the fourth carrier is any one of the M carriers except the third carrier.
The method according to claim 4, wherein the adjustment is used to determine the judgment condition for the occurrence of RLF on the fourth carrier, comprising:

If the HARQ feedback signal is not received for P times to determine that the carrier has RLF, it is adjusted to P' times when the HARQ feedback signal is not received to determine that the carrier has RLF, P'<P, and both P and P' are positive integers.
The method according to claim 4 or 5, wherein the characteristic parameters of the fourth carrier and the third carrier are the same or similar, including:

The frequency band of the fourth carrier is the same as that of the third carrier.
The method according to claim 2, wherein when N≥2, the determining that radio link failure RLF occurs on N carriers among the M carriers of the sidelink includes:

When RLF occurs on the fifth carrier, adjust the judgment condition for determining that RLF occurs on the sixth carrier, the characteristic parameter of the sixth carrier is different from or not similar to that of the fifth carrier, and the characteristic parameter is used to indicate the carrier characteristic parameter or A channel characteristic parameter corresponding to the carrier characteristic parameter; wherein, the fifth carrier is any one of the M carriers, and the sixth carrier is any one of the M carriers except the fifth carrier .
The method according to claim 7, wherein the adjustment is used to determine the judgment condition for the occurrence of RLF on the sixth carrier, comprising:

If the hybrid automatic repeat request feedback HARQ feedback signal is not received for P times to determine that the carrier has RLF, it is adjusted to P" times when the HARQ feedback signal is not received to determine that the carrier has RLF, P">P, and both P and P" are positive integers.
The method according to claim 7 or 8, wherein the characteristic parameters of the sixth carrier and the fifth carrier are different or dissimilar, including:

The frequency band to which the sixth carrier belongs is different from that of the fifth carrier.
A device for determining that a wireless link failure occurs in a sidelink is characterized in that it is applied to a terminal device, and the terminal device communicates through a sidelink, and the sidelink includes M carriers, and M is greater than or A positive integer equal to 2, said device comprising:

The first determining module is configured to determine that radio link failure RLF occurs on N carriers among the M carriers of the sidelink, where 1≤N≤M, and N is a positive integer;

The second determining module is configured to determine that RLF occurs in the sidelink.
The device according to claim 10, wherein when N≥2, the first determining module comprises:

The detection submodule is configured to determine that RLF occurs on a second carrier when RLF occurs on the first carrier, and the characteristic parameters of the second carrier are the same as or similar to those of the first carrier, and the characteristic parameters are used to indicate carrier characteristic parameters or carrier A channel characteristic parameter corresponding to the characteristic parameter; wherein, the first carrier is any one of the M carriers, and the second carrier is any one of the M carriers except the first carrier.
The device according to claim 10, wherein when N≥2, the first determining module comprises:

The first condition submodule is configured to adjust the judgment condition for determining that RLF occurs on the fourth carrier when RLF occurs on the third carrier, the characteristic parameters of the fourth carrier and the third carrier are the same or similar, and the characteristic parameters It is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter; wherein, the third carrier is any one of the M carriers, and the fourth carrier is any of the M carriers except the fourth carrier. Any carrier other than the three carriers.
The device according to claim 10, wherein when N≥2, the first determining module comprises:

The second condition submodule is configured to adjust the judgment condition for determining that RLF occurs on the sixth carrier when RLF occurs on the fifth carrier, the characteristic parameters of the sixth carrier and the fifth carrier are different or not similar, and the characteristics The parameter is used to indicate the carrier characteristic parameter or the channel characteristic parameter corresponding to the carrier characteristic parameter; wherein, the fifth carrier is any one of the M carriers, and the sixth carrier is any of the M carriers except the Any carrier other than the fifth carrier.
A terminal device comprising: at least one processor; and at least one memory communicatively connected to the processor, wherein:

The memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the method as claimed in any one of claims 1 to 9 .
A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the method according to any one of claims 1 to 9.