CN114342302A

CN114342302A - Communication method and communication device

Info

Publication number: CN114342302A
Application number: CN201980100115.9A
Authority: CN
Inventors: 彭文杰; 王君; 戴明增
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2022-04-12
Also published as: WO2021081934A1

Abstract

The application provides a communication method and a communication device, which can avoid filtering operation with the previous measurement result by considering the time factor so that the measurement result obtained after long-time transmission interruption can not be filtered, avoid the situation that the expected smooth filtering effect cannot be achieved, and are beneficial to improving the filtering effect of the side chain measurement result. The method comprises the following steps: first, a first terminal device obtains an nth measurement result of a first unicast connection, where the first unicast connection is a unicast connection between the first terminal device and a second terminal device. The first terminal device then determines the time interval between the time of receipt of the nth measurement and the time of receipt of the (n-1) th measurement, n being an integer greater than 1. And finally, the first terminal equipment executes filtering operation according to the time interval.

Description

Communication method and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a communication method and a communication apparatus.

Background

The vehicle networking (V2X) is a key technology of an intelligent transportation system, is considered to be one of the fields with the most industrial potential and the most clear market demand in an internet of things system, has the characteristics of wide application space, great industrial potential and strong social benefit, and has important significance for promoting the innovative development of the automobile and information communication industry, constructing a new mode and new state of automobile and traffic service, promoting the innovation and application of technologies such as unmanned driving, auxiliary driving, intelligent driving, internet driving, intelligent internet driving, automatic driving, automobile sharing and the like, and improving the traffic efficiency and the safety level. The internet of vehicles generally refers to a communication Network that provides vehicle information through sensors, in-vehicle terminals, and the like mounted on a vehicle, and realizes mutual communication between a vehicle to vehicle (V2V), a vehicle to infrastructure (V2I), a vehicle to Network (V2N), and a vehicle to pedestrian (V2P). Generally, in the V2X scenario, a communication link for performing direct communication between a terminal device and another terminal device may be referred to as a sidelink or a Sidelink (SL). The SL interface may be referred to as a PC5 port, and the terminal device may include a PC5 port of a communication system such as an LTE system or an NR system. The wireless communication link between the terminal device and the network device may be referred to as an Uplink (UL) or a Downlink (DL), and since the UL or DL interface may be referred to as a Uu port, the UL or DL may be referred to as a Uu port link. The terminal device may include a Uu port of a communication system such as an LTE system or an NR system.

In NR V2X, unicast communication is supported between UEs, that is, a unicast connection can be established between two UEs for one-to-one data communication. The sending UE in the unicast connection receives the measurement result from the opposite UE, so as to evaluate the path loss between the two UEs, and further adjust the sending power. In the unicast communication of SL, the transmitting UE does not periodically transmit the reference signal to the receiving UE. The UE can only transmit the reference signal with the data, and is not allowed to transmit only the reference signal. However, the traffic on SL may be aperiodic traffic, which means that the transmitting UE transmits an aperiodic reference signal to the receiving UE. The aperiodic reference signal means that layer 1 of the receiving UE has no way of guaranteeing that periodic measurement results can be provided to layer 3. After receiving the aperiodic reference signal, the receiving end UE may obtain measurement results of different periods. After receiving the measurement result of layer 1 (or physical layer) of the receiving end UE, layer 3 (or RRC layer) of the receiving end UE performs filtering processing. If according to the prior art, the base station configures the filter coefficients for the UE through RRC signaling. After the configuration is completed, the UE will always perform filtering according to the filtering coefficients configured by the base station until the base station updates the filtering coefficients. Thus, performing L3 filtering for measurement results of different periods by a filter coefficient may result in the measurement results not achieving the desired smoothing effect.

Disclosure of Invention

The application provides a communication method and a communication device, which are beneficial to improving the filtering effect of a side chain measurement result by considering a time factor.

In a first aspect, a communication method is provided, including: first, a first terminal device obtains an nth measurement result of a first unicast connection, where the first unicast connection is a unicast connection between the first terminal device and a second terminal device. The first terminal device then determines the time interval between the time of receipt of the nth measurement and the time of receipt of the (n-1) th measurement, n being an integer greater than 1. And finally, the first terminal equipment executes filtering operation according to the time interval. Therefore, the first terminal device determines whether to perform a filtering operation on the measurement result obtained this time by considering the time interval between the two measurement results, or how to perform the filtering operation on the measurement result obtained this time, so that the measurement result obtained after the long-time transmission interruption does not need to be filtered with the previous measurement result, thereby avoiding that the expected smooth filtering effect cannot be achieved, and being beneficial to improving the filtering effect of the side chain measurement result.

In one possible implementation manner, the first terminal device performs a filtering operation according to the time interval, including: when the time interval meets the preset time length, the first terminal equipment carries out filtering processing on the nth measurement result; and when the time interval does not meet the preset time length, the first terminal device takes the nth measurement result as the measurement result after filtering processing. Here, the first terminal device determines whether to perform a filtering operation on the measurement result obtained this time, or how to perform a filtering operation on the measurement result obtained this time, by comparing a time interval between two measurement results with a preset time duration.

Optionally, the time interval satisfying the preset duration includes: the time interval is less than or equal to a preset time length.

Optionally, the filtering, performed by the first terminal device, the nth measurement result includes: the measurement result after the filtering process satisfies the following formula F_n＝(1-α)*F _n-1+α*M _nOr, the first terminal device performs filtering processing on the nth measurement result by adopting the formula calculation; wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the nth measurement, alpha is a filter factor,

k is a filter coefficient.

Optionally, the taking, by the first terminal device, the nth measurement result as the measurement result after the filtering processing includes: the measurement result after the filtering process satisfies the following formula F_n＝M _n(ii) a Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement.

Optionally, the method further comprises: when the first terminal equipment acquires the (n-1) th measurement result, starting a first timer; and when the first terminal equipment acquires the nth measurement result, acquiring the value of the first timer, wherein the time interval is the value of the first timer. Therefore, a first timer may be introduced, and the first terminal device records a value of the first timer, so as to obtain the time interval.

Optionally, when the first terminal device obtains the nth measurement result, the first terminal device restarts the first timer.

In the embodiment of the present application, the timers may correspond to different granularities, for example, different unicast connections may correspond to different timers, and for example, different terminal devices may correspond to different timers. Optionally, the method further comprises: the first terminal device maintaining the first timer for the first unicast connection; or, if the first terminal device maintains the first timer for the first measurement object of the first unicast connection, the obtaining, by the first terminal device, the nth measurement result of the first unicast connection includes: the first terminal device obtains an nth measurement result of the first measurement object of the first unicast connection.

The embodiment of the present application does not specifically limit whether the first terminal device is a receiving end or a transmitting end.

In a possible implementation manner, the obtaining, by the first terminal device, an nth measurement result of the first unicast connection includes: the radio resource control layer (or layer 3) of the first terminal device receives the nth measurement result from the physical layer (or layer 1) of the first terminal device. Assuming that the first terminal device is a receiving end, after receiving the measurement result of the layer 1, i.e. the measurement result of the physical layer, from the first terminal device, the layer 3 of the first terminal device may filter the measurement result of the physical layer in the manner described above.

Or, in a possible implementation manner, the obtaining, by the first terminal device, an nth measurement result of the first unicast connection includes: the first terminal device receives the nth measurement result from the second terminal device. For example, assuming that the first terminal device is a transmitting end and the second terminal device is a receiving end, the second terminal device may transmit the measurement result of layer 1 to the first terminal device. The first terminal device may transmit the measurement result of the physical layer to layer 3 of the first terminal device after receiving the measurement result of the physical layer measured from the second terminal device. The layer 3 of the first terminal device may filter the measurement result of the physical layer in the manner described above after receiving the measurement result of the layer 1 of the first terminal device, that is, the measurement result of the physical layer.

In a second aspect, a communication method is provided, including: firstly, a first terminal device obtains an nth measurement result of a first unicast connection, wherein the first unicast connection is established between the first terminal device and a second terminal device; then, the first terminal device performs a filtering operation according to the state of the first timer when the nth measurement result is obtained. Therefore, the first terminal device determines whether to perform a filtering operation on the measurement result obtained this time or how to perform the filtering operation on the measurement result obtained this time by considering the state of the first timer, so that the measurement result obtained after the long-time transmission interruption does not need to be filtered with the previous measurement result, thereby avoiding that the expected smooth filtering effect cannot be achieved, and being beneficial to improving the filtering effect of the side chain measurement result.

Optionally, the method further comprises: and when the first terminal equipment acquires the (n-1) th measurement result, starting the first timer. Here, the first timer may be started by the first terminal device when the last measurement result is obtained, but is not limited thereto. Alternatively, the first timer may be started when the measurement result is obtained for the first time and restarted each time the measurement result is obtained subsequently.

In a possible implementation manner, the performing, by the first terminal device, a filtering operation according to a state of the first timer when the nth measurement result is obtained includes: when the first terminal device obtains the nth measurement result, if the first timer is not overtime, the first terminal device performs filtering processing on the nth measurement result; and when the first terminal equipment acquires the nth measurement result, if the first timer is overtime, the first terminal equipment takes the nth measurement result as the measurement result after filtering processing. Therefore, the first terminal device determines whether to perform a filtering operation on the measurement result obtained this time or how to perform the filtering operation on the measurement result obtained this time by determining the state of the first timer.

Optionally, if the first timer is not timed out, the filtering processing performed by the first terminal device on the nth measurement result includes: the measurement result after the filtering process satisfies the following formula F_n＝(1-α)*F _n-1+α*M _nOr, the first terminal device performs filtering processing on the nth measurement result by adopting the formula calculation; wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the nth measurement, alpha is a filter factor,

k is a filter coefficient.

Optionally, if the first timer is overtime, the first terminal device uses the nth measurement result as the measurement result after the filtering processing, including: the measurement result after the filtering process satisfies F_n＝M _n(ii) a Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement.

Optionally, when the first terminal device obtains the nth measurement result, if the first timer is not timed out, the method further includes: and the first terminal equipment restarts the first timer.

In the embodiment of the present application, the timers may correspond to different granularities, for example, different unicast connections may correspond to different timers, for example, different terminal devices may correspond to different timers, and for example, different measurement objects may correspond to different timers. Optionally, the method further comprises: the first terminal device maintaining the first timer for the first unicast connection; or, the first terminal device maintains the first timer for the first measurement object of the first unicast connection.

Optionally, the method further comprises: the first terminal device receives first information, wherein the first information comprises information for configuring the duration of the first timer.

Optionally, the first information includes an identifier of the first unicast connection and a duration of the first timer; or, the first information includes the first measurement object and a duration of the first timer corresponding to the first measurement object.

In a third aspect, a communication method is provided, including: first, a first terminal device obtains an nth measurement result of a first unicast connection, where the first unicast connection is a unicast connection between the first terminal device and a second terminal device. The first terminal device then determines a time interval between the time of receipt of the nth measurement and the time of receipt of the (n-1) th measurement, n being an integer greater than 1. Then, the first terminal device determines a first filtering parameter according to the first corresponding relationship and the time interval. And finally, the first terminal equipment uses the first filtering parameter to carry out filtering processing on the nth measurement result. Therefore, for the side chain aperiodic reference signal, the embodiment of the application avoids using the same filter parameter to filter the side chain measurement result all the time by introducing different filter parameters for different time intervals, and is beneficial to providing the filtering smoothing effect of the side chain measurement result.

Alternatively, the first correspondence may be understood as a correspondence between the duration range and the filter parameters (filter factors and/or filter coefficients).

Optionally, the method further comprises: when the first terminal equipment acquires the (n-1) th measurement result, starting a first timer; and after the first terminal equipment acquires the nth measurement result, acquiring the value of the first timer, wherein the time interval is the value of the first timer. Therefore, a first timer may be introduced, and the first terminal device may obtain the time interval by recording a value of the first timer.

Optionally, after the first terminal device obtains the nth measurement result, the first terminal device restarts the first timer.

In the embodiment of the present application, the timers may correspond to different granularities, for example, different unicast connections may correspond to different timers, and for example, different terminal devices may correspond to different timers. Optionally, the method further comprises: the first terminal device maintaining the first timer for the first unicast connection; or, the first terminal device maintains the first timer for the first measurement object of the first unicast connection.

Optionally, the method further comprises: the first terminal device receives configuration information from a network device, the configuration information includes first indication information and information of a first filtering parameter, the first indication information and the first filtering parameter have the first corresponding relation, and the first indication information is used for indicating a duration range.

Optionally, the determining, by the first terminal device, a first filtering parameter according to the first corresponding relationship and the time interval includes: the first terminal device determines a duration range to which the time interval belongs, and determines the first filtering parameter corresponding to the duration range according to the first corresponding relation.

Optionally, the first indication information includes: an upper boundary value of the time length range and/or a lower boundary value of the time length range.

Optionally, the configuration information includes indication information of a plurality of duration ranges and information of a plurality of filtering parameters, and the information of the plurality of duration ranges and the plurality of filtering parameters have a corresponding relationship. Here, the first terminal device may receive a correspondence between indication information of a plurality of duration ranges configured by the network device and the plurality of filtering parameters. Illustratively, the configuration information sent by the network device may include a list of time threshold values and information of the filtering parameters corresponding to each time threshold value. The time threshold value list comprises a plurality of time threshold values which are sequentially arranged according to an ascending order or a descending order. The time threshold value may represent an upper boundary value of the duration range or may represent a lower boundary value of the duration range.

Optionally, the first filtering parameter includes: filter factors and/or filter coefficients.

In a fourth aspect, a communication method is provided, including: first, the second terminal device sends data of a first unicast connection L times at a first time by using a first transmission power, where the first unicast connection is established between the second terminal device and the first terminal device. The second terminal device then determines a time interval between a second time when the second terminal device is ready to send data of the first unicast connection L +1 times and the first time. And finally, the second terminal equipment determines the power used by the second terminal equipment for transmitting the data of the first unicast connection in the L +1 th time according to the time interval and the preset duration. Therefore, the second terminal device determines whether to transmit the data this time along the transmission power used when the data was transmitted last time by judging the time interval between two times of data transmission, and can avoid the problems of excessive power or insufficient power caused by power transmission before being continuously used after data transmission is not performed for a long time.

Optionally, the determining, by the second terminal device, power used by the second terminal device to send the data of the first unicast connection in the L +1 th time according to the time interval and the preset duration includes: when the time interval exceeds the preset time length, the second terminal device determines that the power used by the second terminal device for transmitting the data of the first unicast connection at the L +1 th time is the transmitting power for transmitting the data of the first unicast connection at the first time; or, in the case that the time interval does not exceed the preset time length, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection at the L +1 th time is the transmission power used by the second terminal device to send the data of the first unicast connection at the L th time.

Optionally, the method further comprises: the second terminal equipment starts a first timer when sending the data of the first unicast connection for the L time; and the second terminal equipment acquires the value of the first timer at the second time, wherein the value of the first timer is the time interval. Therefore, a first timer may be introduced, and the first terminal device may obtain the time interval by recording a value of the first timer.

Optionally, when the second terminal device sends the data of the first unicast connection L +1 th time, the second terminal device restarts the first timer.

Optionally, the method further comprises: the second terminal device maintains the first timer for the first unicast connection.

Or, optionally, different timers correspond to different terminal devices. For example, the second terminal device corresponds to the first timer.

In a fifth aspect, a communication method is provided, including: firstly, a second terminal device uses a first transmission power to send data of a first unicast connection for the Lth time, wherein the first unicast connection is established between the second terminal device and a first terminal device; then, the second terminal device determines the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time according to the state of the first timer when the second terminal device sends the data of the first unicast connection for the L +1 th time, wherein the second time is the time when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time. Therefore, the second terminal device determines whether to continue to transmit the data this time with the transmission power used in the last data transmission by judging the state of the timer, and can avoid the problem of excessive power or insufficient power caused by power transmission before continuing to use after data transmission is not performed for a long time.

Optionally, the method further comprises: the second terminal equipment starts a first timer when sending the data of the first unicast connection for the Lth time by using the first transmission power; when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time, if the first timer is overtime, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the transmission power for sending the data of the first unicast connection for the first time; when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time, if the first timer is not over time, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the first transmission power.

Optionally, when the second terminal device sends the data of the first unicast connection for the L +1 th time, if the first timer is overtime, the method further includes: and restarting the first timer.

In the embodiment of the present application, the timers may correspond to different granularities, for example, different unicast connections may correspond to different timers, and for example, different terminal devices may correspond to different timers.

In one possible implementation, the method further includes: and the second terminal equipment receives third information, wherein the third information comprises information for configuring the first timer.

Optionally, the third information includes an identifier of the first unicast connection and a duration of the first timer.

In a sixth aspect, a communication device is provided, which includes various means or units for performing the method in any one of the possible implementations of the first to third aspects.

In a seventh aspect, a communication device is provided, which includes various modules or units for performing the methods in any one of the possible implementations of the fourth aspect and the fifth aspect.

In an eighth aspect, a communications apparatus is provided that includes a processor. The processor is operable to execute the instructions involved to implement the method in any one of the possible implementations of the first to third aspects described above. Optionally, the apparatus may further comprise a memory coupled to the processor, the memory having stored therein instructions further referred to. Optionally, the apparatus may further comprise an interface circuit, the interface circuit being coupled to the processor.

In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the terminal equipment. When the communication device is a chip configured in a terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a ninth aspect, a communications apparatus is provided that includes a processor. The processor may be configured to execute the instructions involved and may be configured to execute the instructions in the memory to implement the method of any of the possible implementations of the fourth and fifth aspects described above. Optionally, the communication device further comprises a memory. Optionally, the apparatus may further comprise a memory coupled to the processor, the memory having stored therein instructions further referred to. Optionally, the apparatus may further comprise an interface circuit, the interface circuit being coupled to the processor.

In a tenth aspect, there is provided a processor comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method in any one of the possible implementations of the first aspect to the third aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be output to and transmitted by a transmitter, for example and without limitation, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In an eleventh aspect, an apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory, and may receive a signal via the receiver and transmit a signal via the transmitter to perform the method of any one of the possible implementations of the first aspect to the third aspect.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It will be appreciated that the associated data interaction process, for example, sending the indication information, may be a process of outputting the indication information from the processor, and receiving the capability information may be a process of receiving the input capability information from the processor. In particular, the data output by the processor may be output to a transmitter and the input data received by the processor may be from a receiver. The transmitter and receiver may be collectively referred to as a transceiver, among others.

The apparatus in the above eleventh aspect may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In a twelfth aspect, a processor is provided, comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method of any one of the possible implementations of the fourth aspect and the fifth aspect.

In a thirteenth aspect, an apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory, and may receive a signal via the receiver and transmit a signal via the transmitter to perform the method of any one of the possible implementations of the fourth aspect and the fifth aspect.

The apparatus in the thirteenth aspect may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In a fourteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any one of the possible implementations of the first to fifth aspects described above.

In a fifteenth aspect, a computer-readable medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any one of the possible implementations of the first to fifth aspects.

A sixteenth aspect provides a communication system, including the aforementioned first terminal device and/or second terminal device;

optionally, the communication system further comprises a network device in communication with the first terminal device and/or the second terminal device.

Drawings

Fig. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied;

fig. 2 is an exemplary diagram of times at which a transmitting end performs data communication with a receiving end;

fig. 3 is a schematic flow chart diagram of a communication method according to an embodiment of the present application;

FIG. 4 is a schematic flow chart diagram of a communication method according to another embodiment of the present application;

FIG. 5 is a schematic diagram of an example of an application of an embodiment of the present application;

FIG. 6 is a schematic flow chart diagram of a communication method according to yet another embodiment of the present application;

FIG. 7 is a schematic flow chart diagram of a communication method according to another embodiment of the present application;

FIG. 8 is a schematic flow chart diagram of a communication method according to yet another embodiment of the present application;

fig. 9 is a schematic block diagram of a communication device provided in an embodiment of the present application;

fig. 10 is a schematic block diagram of another communication device provided by an embodiment of the present application;

fig. 11 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

For example, the features or contents identified by broken lines in the drawings related to the embodiments of the present application can be understood as optional operations or optional structures of the embodiments.

In the embodiments of the present application, "a plurality" means two or more, and other terms are similar thereto.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a universal microwave access (WiMAX) communication system, a fifth generation (5th generation, 5G) system or a New Radio (NR), a device-to-device (D2D) system, a vehicle networking (V2X) system, and the like.

V2X is an important key technology for realizing environmental perception, information interaction and cooperative control through sensors, electronic tags and the like mounted on a vehicle. For example, the technology can realize information interaction between a vehicle and internet (V2N), a vehicle to vehicle (V2V), a vehicle to person (V2P), and vehicle to infrastructure communication (V2I), and the like, and can improve the intelligent level and the automatic driving capability of the vehicle.

One participant of V2N is a terminal device and the other participant is a service entity. V2N is the most widely used form of car networking, and its main function is to connect the vehicle to the cloud server through the mobile network, so as to provide navigation, entertainment, anti-theft functions through the cloud server.

Both participants of V2V are terminal devices. V2V may be used as an inter-vehicle information interaction reminder, the most typical application being for inter-vehicle collision avoidance safety systems.

Both participants of V2P are terminal devices. V2P may be used to provide safety warnings to pedestrians or non-motor vehicles on the road.

One participant in V2I is a terminal device and the other participant is an infrastructure (or infrastructure). V2I may be used for vehicle-to-infrastructure communications, e.g., where the infrastructure may be roads, traffic lights, roadblocks, etc., where road management information such as timing of traffic light signals may be obtained.

The terminal device in this embodiment may refer to a User Equipment (UE), a Subscriber Station (SS), a Client Premise Equipment (CPE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user Equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which are not limited in this embodiment. The terminal device may also be a software and/or hardware module deployed in an autonomous automobile, a smart automobile, a digital automobile, or a vehicle network automobile. The terminal device in the embodiment of the present application may refer to a D2D device, a V2X device, and a Road Side Unit (RSU).

The network device in this embodiment may be a device for communicating with a terminal device, and the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NodeB ) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved NodeB (eNB, or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may be a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device (gbb) in a future 5G network or a network device in a PLMN network of the future, and the like, and the embodiment of the present invention is not limited. In one network configuration, a network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node.

In some deployments, a base station or transmission point may also include a Radio Unit (RU). A CU implements part of the function of a gNB or a transmission point, and a DU implements part of the function of the gNB or the transmission point, for example, the CU implements the function of a Radio Resource Control (RRC) layer and a Packet Data Convergence Protocol (PDCP) layer, and the DU implements the function of a Radio Link Control (RLC), a Media Access Control (MAC) layer and a Physical (PHY) layer. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as RRC layer signaling or PHCP layer signaling, may also be considered to be transmitted by the DU or by the DU + RU under this architecture. It is to be understood that the network device may be a CU node, or a DU node, or a device including a CU node and a DU node. In addition, the CU may be divided into network devices in the access network RAN, or may be divided into network devices in the core network CN, which is not limited herein.

Illustratively, layer 1 in this application refers generally to the PHY layer, and layer 2 in this application refers generally to the MAC layer, RLC layer, or PDCP layer. Layer 3 in this application is generally referred to as the RRC layer.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is a diagram of an example of a system architecture to which an embodiment of the present application is applied. As shown in fig. 1, the system architecture includes: V2X devices (including V2X device 1 and V2X device 2) and network devices (including network device 1 and network device 2). The V2X devices communicate with each other through a PC5 interface. The direct communication link between V2X devices may be referred to as a Sidelink (SL). The V2X equipment and the network equipment communicate through a Uu port. That is, the V2X device 1 communicates with the network device 1 through the Uu port; the V2X device 2 communicates with the network device 2 via the Uu port.

It should be understood that fig. 1 illustrates two network devices as an example, and in fact, the V2X device 1 and the V2X device 2 may share one network device, which is not limited.

Optionally, the system architecture in fig. 1 may further include a V2X application server (application server).

In V2X, unicast communication is supported between the terminal devices, that is, a unicast connection is established between two terminal devices, and one-to-one data communication is performed. In unicast communication, a transmitting UE does not periodically transmit a reference signal, such as a DMRS or a channel-state information reference signal (CSI-RS), to a receiving UE. In the sidechain, the UE can only transmit the reference signal with the data, and is not allowed to transmit only the reference signal. While the traffic on the side chain may be aperiodic traffic, which means that the reference signal sent by the sending UE to the receiving UE is also aperiodic. The aperiodic reference signal means that the physical layer (hereinafter referred to as layer 1) of the UE cannot guarantee to provide periodic measurement results to the radio resource control layer (hereinafter referred to as layer 3) of the UE. As explained herein, the measurement result provided by layer 1 to layer 3 of the UE refers to the measurement result of the physical layer. After receiving the measurement result from the physical layer of layer 1, layer 3 of the UE may filter the measurement result of the physical layer to obtain a filtered measurement result. The measurement results after filtering can be understood as layer 3 measurement results.

Taking the scenario in fig. 2 as an example, the sending of data by the sending UE to the receiving UE is not periodic, and the sending UE may send data at t1, t2, t3, t4, t5, t6, and t 7. In FIG. 2, each time interval is different (e.g., the time interval between t1 and t2, the time interval between t2 and t3, etc.). Also, there may be a long time pause for the transmitting UE. For example, as shown in fig. 2, the transmitting UE has no data to transmit during the period from t5 to t 6. In the scenario of fig. 2, since data transmission of the transmitting-side UE is aperiodic, the reference signal is also aperiodic. If the transmitting UE still performs filtering operation on the measurement result received at t6, the measurement result may not have the desired smoothing effect.

Therefore, how to perform filtering on the measurement result of the side chain that is not periodic is an issue to be considered.

The communication method of the embodiment of the present application will be described below with reference to fig. 3 to 8.

As a unified description, a unicast connection is established between the first terminal device and the second terminal device, and one-to-one communication is possible. The first terminal equipment and the second terminal equipment are mutually a transceiving end. For example, the first terminal device is a sending-end UE, and the second terminal device is a receiving-end UE. For another example, the second terminal device is a sending-end UE, and the first terminal device is a receiving-end UE.

Fig. 3 shows a schematic interaction diagram of a communication method 300 according to an embodiment of the application. It is understood that the first terminal device in fig. 3 may be the V2X device 1 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 1; the second terminal device may be the V2X device 2 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 2. For example, the V2X device is a terminal device. It is further understood that part or all of the information interacted between the devices in fig. 3 may be carried in an existing message, channel, signal, or signaling, or may be a newly defined message, channel, signal, or signaling, which is not limited in this respect. As shown in fig. 3, the method 300 includes:

s301, a first terminal device obtains an nth measurement result of a first unicast connection, where the first unicast connection is a unicast connection between the first terminal device and a second terminal device.

Exemplarily, S301 includes: the radio resource control layer (layer 3) of the first terminal device receives the nth measurement result from the physical layer (layer 1) of the first network device. For example, assuming that the first terminal device is a receiving end, the second terminal device is a transmitting end, after receiving a reference signal from an opposite end, the layer 1 of the first terminal device may measure the reference signal to obtain a measurement result of the layer 1, that is, a measurement result of the physical layer, for example, an nth measurement result, and send the measurement result of the physical layer to the layer 3 of the first terminal device, that is, a radio resource control layer. The layer 3 of the first terminal device may filter the measurement result of the physical layer after receiving the measurement result of the layer 1 from the first terminal device, i.e. the measurement result of the physical layer.

Or, exemplarily, S301 includes: the first terminal device receives the nth measurement from the second terminal device. For example, assuming that the first terminal device is a sending end, the second terminal device is a receiving end, and layer 1 of the second terminal device may measure the reference signal after receiving the reference signal from the opposite end, and after measuring the measurement result of the physical layer, for example, the nth measurement result, may send the measurement result of the physical layer to the first terminal device. After receiving the measurement result of the physical layer measured by the second terminal device, the first terminal device may send the measurement result of the physical layer to layer 3, i.e. the radio resource control layer, of the first terminal device. The layer 3 of the first terminal device may filter the measurement result of the physical layer after receiving the measurement result of the layer 1 from the first terminal device, i.e. the measurement result of the physical layer.

As explained herein collectively, in the embodiments of the present application, the measurement results may be characterized by one or more of the following measurement quantities: received Signal Code Power (RSCP), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), signal to noise Ratio (SNR), signal to interference plus noise Ratio (SINR), Reference Signal Strength Indication (RSSI), or other indicators used to characterize signal quality. Wherein, the RSSI, RSRP, RSRQ are cell measurement parameters, which are a rough cell signal estimation. RSRP is the arithmetic mean of the received power of the reference signal within the measurement bandwidth; RSSI is the arithmetic mean of the total power of all RBs within the measurement bandwidth (useful signal energy + interference + noise); RSRQ is N RSRP/RSSI; the SINR is a parameter for accurately evaluating the demodulation capability of the terminal device, and takes parameters such as demodulation and decoding into consideration.

The nth measurement result may be understood as a measurement result of the physical layer acquired this time. n is an integer greater than 1. The n-1 th measurement result represents a measurement result of the physical layer acquired last time.

When acquiring the nth measurement result, the first terminal device needs to acquire a time interval between the receiving time of the current measurement result and the receiving time of the last measurement result.

S302, the first terminal device determines a time interval between a receiving time of the nth measurement result and a receiving time of an n-1 th measurement result, n being an integer greater than 1.

And S303, the first terminal equipment executes filtering operation according to the time interval.

In the embodiment of the application, the first terminal device considers the time factor when performing the filtering operation, so that the measurement result obtained after the long-time transmission interruption does not need to be filtered with the previous measurement result, the expected smooth filtering effect is avoided, and the filtering effect of the side chain measurement result is improved.

Optionally, S303 includes: when the time interval meets the preset time length, the first terminal equipment carries out filtering processing on the nth measurement result; and when the time interval does not meet the preset time length, the first terminal device takes the nth measurement result as the measurement result after filtering processing.

The first terminal device may replace the nth measurement result as a measurement result after filtering processing with "the first terminal device does not filter the nth measurement result".

Optionally, the preset time period may be predefined, may be configured by the network device, and may also be preconfigured, which is not particularly limited. The preset duration is used for comparison with the time interval. The predetermined time duration may be understood as a time interval threshold.

Illustratively, the time interval satisfying the preset duration includes: the time interval is less than or equal to a preset time length. Specifically, when the time interval is less than or equal to the preset time, the layer 3 of the first terminal device performs filtering processing on the nth measurement result. And when the time interval is longer than the preset time, the layer 3 of the first terminal device takes the nth measurement result as the measurement result after the filtering processing.

To be collectively described herein, the layer 3 of the first terminal device exemplarily performs filtering processing on the nth measurement result, including: layer 3 of the first terminal device performs filtering processing on the nth measurement result by using the following formula:

F _n＝(1-α)*F _n-1+α*M _n (1)

wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the nth measurement, alpha is a filter factor,

k is a filter coefficient.

Are made uniform hereIllustratively, the layer 3 of the first terminal device takes the nth measurement result as the measurement result after the filtering process, and includes: the measurement result after the filtering process satisfies the following formula: f_n＝M _nOr layer 3 of the first terminal equipment adopts F_n＝M _nTaking the nth measurement result as the measurement result after filtering processing; wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement; alternatively, layer 3 of the first terminal device is F_n-1＝M _nCalculating the measurement result after filtering, i.e. F_n-1＝M _nThe measurement result after the filtering process is calculated by substituting the above equation (1).

It should be understood that, in the above example, the case of dividing the time interval by comparing with the preset time length is only described by way of example, and does not limit the embodiments of the present application. In fact, the case where the "time interval is equal to the preset time period" can also be ascribed to the case where the "time interval is greater than the preset time period".

It should be further understood that, in the above example, the filtering operation corresponding to the case where the time interval is divided by comparing with the preset time length is also described by way of example only, and is not limited to the embodiment of the present application. In fact, the cases and corresponding filtering operations divided in the above examples may have other combinations, and are not limited to this.

In this embodiment, the first terminal device may determine the time interval between the receiving times of the two measurement results, which may be implemented by a timer.

Optionally, the method 300 further comprises: when the first terminal equipment acquires the (n-1) th measurement result, starting a first timer; wherein, S302 includes: and when the first terminal equipment acquires the nth measurement result, acquiring the value of the first timer, wherein the time interval is the value of the first timer.

Specifically, the first terminal device may start a timer, for example, a first timer, when obtaining the n-1 th measurement result, and then read or record a value of the first timer when obtaining the nth measurement result, so as to obtain the time interval.

When the nth measurement result is obtained, the first terminal device may restart the first timer, so that when the (n + 1) th measurement result is obtained, the value of the first timer may still be recorded. Optionally, when the first terminal device obtains the nth measurement result, the method 300 further includes: and the first terminal equipment restarts the first timer.

For example, the first timer may be started when the first terminal device obtains the measurement result for the first time, and stop the first timer, record a value of the first timer, and restart the first timer when the measurement result is obtained each time in the following. The sequence of executing "stop the first timer" or "restart the first timer" and executing "read the value of the first timer" is not limited herein.

The granularity corresponding to the first timer is not specifically limited in the embodiment of the present application. The first timer may correspond to a unicast connection (e.g., destination address, source address, etc.), or to a measurement object, or to an end device.

For the sake of uniform explanation, the measurement objects in the examples of the present application are for the side chains. The measurement target of the side chain includes: measured side-chain carrier, some reference signal on the measured side-chain carrier. In order to avoid redundancy, the following description of the measurement objects is omitted, and all the descriptions can be referred to here.

Alternatively, the granularity of the first timer may be maintained by the terminal device (e.g., the first terminal device) itself, which is not particularly limited.

It is understood that the preset time period may also be related to the granularity.

Alternatively, as explained herein, assuming that the granularity of the timer is predefined by the protocol, the network device may configure the timer with a corresponding preset duration. For example, the protocol predefines a timer for each unicast connection, and the network device configures a preset duration corresponding to the timer for each unicast connection. For another example, the protocol predefines that each terminal device corresponds to one timer, and then the network device configures a preset duration corresponding to the timer for each terminal device. For another example, the protocol predefines a timer for each measurement object, and then the network device configures a preset duration corresponding to the timer for each measurement object. Here, the preset durations configured by the network device for different timers may be the same or different, and are not limited herein. Illustratively, the granularity of the first timer is predefined by the protocol, and the network device may configure the first timer with a corresponding preset duration.

Optionally, in addition to configuring the timer with the corresponding preset duration, the network device may also configure the corresponding filtering parameter. The filter parameters include filter factors and/or filter coefficients. After the first terminal device determines that the time interval meets the preset duration, the first terminal device may perform filtering processing by using a filtering parameter configured by the network device when performing filtering processing. Illustratively, the granularity of the first timer is predefined by the protocol, and the network device may configure a preset duration corresponding to the first timer, and the filtering parameters.

Or, optionally, the network device may also configure the granularity of the first timer. That is, the network device configures whether the first timer corresponds to a certain terminal device, a certain measurement object, or a certain unicast connection.

The first terminal device may maintain different timers for different unicast connections. Layer 3 of the first terminal device may illustratively maintain the first timer for the first unicast connection. For example, the layer 3 of the first terminal device may start the first timer when obtaining the first measurement result of the first unicast connection, and stop the first timer, record a value of the first timer, and restart the first timer each time the measurement result of the first unicast connection is received in the following.

Alternatively, layer 3 of the first terminal device may maintain a timer for different measurement objects of the same unicast connection. Illustratively, if the first unicast connection has multiple measurement objects, layer 3 of the first terminal device may maintain the first timer for the first measurement object of the first unicast connection. For example, the first terminal device may start the first timer when obtaining a first measurement result of the first unicast connection for the first measurement object, record a value of the first timer each time a measurement result of the first unicast connection for the first measurement object is received, and restart the first timer. That is, the first timer may be a timer that distinguishes the measurement objects, and one timer may correspond to each measurement object.

For example, different measurement objects of the same unicast connection may be understood as: different side-chain carriers, or different reference signals on the same side-chain carrier.

Illustratively, different terminal devices may also correspond to different timers. For example, the first terminal device corresponds to a first timer.

In the embodiment of the application, when the first terminal device performs the filtering operation, the first timer is introduced to determine the time interval between two times of obtaining the measurement result, and the filtering operation is performed based on the time interval, so that the measurement result obtained after the long-time transmission interruption does not need to be filtered with the previous measurement result, the expected smooth filtering effect is avoided, and the filtering effect of the side chain measurement result is improved.

The application also provides a communication method, and the specific content of the filtering operation is determined by introducing a timer. Fig. 4 shows a schematic interaction diagram of a communication method 400 according to another embodiment of the present application. It is understood that the first terminal device in fig. 4 may be the V2X device 1 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 1; the second terminal device may be the V2X device 2 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 2. For example, the V2X device is a terminal device. It is further understood that part or all of the information interacted between the devices in fig. 4 may be carried in an existing message, channel, signal, or signaling, or may be a newly defined message, channel, signal, or signaling, which is not limited in this respect. It is also to be understood that portions of the description in fig. 4 (such as specific explanations of terms or steps) may refer to the description in method 300. As shown in fig. 4, the method 400 includes:

s401, a first terminal device obtains an nth measurement result of a first unicast connection, where the first unicast connection is a unicast connection between the first terminal device and a second terminal device.

For the related description of the first terminal device and the second terminal device, reference may be made to the foregoing description, and in order to avoid redundancy, the description is not repeated here.

How the first terminal device obtains the nth measurement result of the first unicast connection may refer to the description of S301 in the method 300, and is not described herein for avoiding redundancy.

S402, the first terminal device executes filtering operation according to the state of the first timer when the nth measurement result is obtained.

The difference from the method 300 is that the method 400 is to introduce a timer, and perform a filtering operation according to the state of the first timer when the nth measurement result is obtained, so that the measurement result obtained after a long transmission interruption does not need to be filtered from the previous measurement result, thereby avoiding the expected smooth filtering effect and contributing to the improvement of the filtering effect of the side chain measurement result.

And the first timer is started already when the first terminal equipment acquires the nth measurement result. The first terminal device needs to determine the state of the first timer to determine whether to filter the nth measurement result or how to filter the nth measurement result.

Optionally, the method 400 further comprises: and the first terminal equipment starts a first timer when acquiring the (n-1) th measurement result. Here, the first timer may be started when the n-1 th measurement result is acquired. In this way, when acquiring the nth measurement result, the first terminal device may determine the state of the first timer, and then determine whether to perform filtering processing on the nth measurement result based on the state of the first timer. It should be understood that, the description is given by taking the example of starting the first timer when the n-1 th measurement result is obtained, but the description is not limited to this, that is, the start time of the first timer is not specifically limited in the embodiment of the present application.

Illustratively, S402 includes: when the first terminal device obtains the nth measurement result, if the first timer is not overtime, the first terminal device performs filtering processing on the nth measurement result; and when the first terminal equipment acquires the nth measurement result, if the first timer is overtime, the first terminal equipment takes the nth measurement result as the measurement result after filtering processing. The first terminal device may replace the nth measurement result as a measurement result after filtering processing by "the first terminal device does not filter the nth measurement result", or may understand that: the first terminal device filters a first measurement result (i.e., nth measurement result) obtained after the first timer expires as the first measurement result of the first unicast connection or the first measurement object of the first unicast connection.

If the first timer has not timed out and is in the running state when the first terminal device obtains the nth measurement result, the layer 3 of the first terminal device may perform filtering processing on the nth measurement result. And if the first timer is overtime when the first terminal equipment obtains the nth measurement result, taking the nth measurement result as the measurement result after the filtering processing by the first terminal equipment.

Exemplarily, if the first timer is not timed out, the filtering processing performed by the first terminal device on the nth measurement result includes: layer 3 of the first terminal device performs filtering processing on the nth measurement result by using the following formula:

F _n＝(1-α)*F _n-1+α*M _n (2)

wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIt is the result of this n-th measurement,

k is a filter coefficient.

For example, if the first timer expires, the layer 3 of the first terminal device uses the nth measurement result as the measurement result after the filtering process, including: the measurement result after the filtering process satisfies the following formula F_n＝M _n；

Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement; alternatively, layer 3 of the first terminal device is F_n-1＝M _nCalculating the measurement result after filtering, i.e. F_n-1＝M _nThe measurement result after the filtering process is calculated by substituting the above equation (2).

Optionally, when the first terminal device obtains the nth measurement result, if the first timer is not timed out, the method 400 further includes: and the first terminal equipment restarts the first timer. That is, the first terminal device may restart the first timer if the first timer has not timed out while obtaining the nth measurement result, so as to continue to perform the filtering operation based on the state of the first timer while obtaining the (n + 1) th measurement result.

For example, the first timer may be started by the first terminal device when the measurement result is obtained for the first time. And, when the measurement result is obtained in the following each time, if the first timer is not overtime, the first terminal device may restart the first timer.

The granularity corresponding to the first timer is not specifically limited in the embodiment of the present application. The first timer may correspond to a unicast connection (e.g., destination address, source address, etc.) or to a measurement object.

Alternatively, the granularity of the first timer may be maintained by the first terminal device itself, which is not particularly limited.

Alternatively, as explained herein, assuming that the granularity of the timer is predefined by the protocol, the network device may configure the timer with a corresponding duration. For example, the protocol predefines a timer for each unicast connection, and the network device configures a corresponding duration of the timer for each unicast connection. For another example, the protocol predefines a timer for each terminal device, and then the network device configures a duration corresponding to the timer for each terminal device. For another example, the protocol predefines a timer for each measurement object, and then the network device configures a time duration corresponding to the timer for each measurement object. Here, the preset durations configured for the timers with different granularity types or the timers with the same granularity type may be the same or different, and are not limited herein. Illustratively, the protocol predetermines the granularity of the timer as a unicast connection, and the network device configures the first unicast connection with a duration corresponding to the first timer. Illustratively, the protocol predetermines the granularity of the timer as the measurement object, and the network device configures the duration corresponding to the first timer for the first measurement object of the first unicast connection. Illustratively, the granularity of the first timer is predefined by the protocol, and the network device may configure the duration of the first timer.

Optionally, in addition to configuring the timer, the network device may also configure the corresponding filtering parameter. The filter parameters include filter factors and/or filter coefficients. And after judging that the timer is not overtime, the first terminal equipment adopts the filtering parameters configured by the network equipment to carry out filtering processing when carrying out filtering processing. Illustratively, the granularity of the first timer is predefined by the protocol, the network device is configurable, and the filtering parameters. Or, optionally, the network device may also configure the granularity of the first timer. That is, whether the first timer is associated with a certain terminal device, a certain measurement object, or a certain unicast connection is configured by the network device.

The first terminal device may maintain different timers for different unicast connections. Layer 3 of the first terminal device may illustratively maintain the first timer for the first unicast connection. For example, the layer 3 of the first terminal device may start the first timer when obtaining the first measurement result of the first unicast connection, and stop the first timer and restart the first timer each time the measurement result of the first unicast connection is received subsequently.

Alternatively, layer 3 of the first terminal device may maintain a timer for different measurement objects of the same unicast connection, respectively. Illustratively, if the first unicast connection has multiple measurement objects, layer 3 of the first terminal device may maintain the first timer for the first measurement object of the first unicast connection. For example, the layer 3 of the first terminal device may start the first timer when obtaining the first measurement result of the first unicast connection for the first measurement object, record the value of the first timer each time the measurement result of the first unicast connection for the first measurement object is received, and restart the first timer. That is, the first timer may be a timer that distinguishes the measurement objects, and one timer may correspond to each measurement object.

Optionally, the information (e.g., duration) related to the first timer may be obtained by the first terminal device from a preset configuration. Alternatively, the first timer may be fixed. Alternatively, the information related to the first timer may be obtained by the first terminal device from another device.

Optionally, the method 400 further comprises: the first terminal equipment receives first information, wherein the first information comprises information for configuring a first timer. Illustratively, the first information may be acquired by the first terminal device from the network device. Alternatively, the first information may be acquired by the first terminal device from the second terminal device. For example, the network device configures the information of the first timer by broadcasting, or configures the information of the first timer by dedicated signaling.

If the first timer is associated with a granularity, information associated with the granularity corresponding to the first timer may be included in the first information. Illustratively, the first information includes an identification (e.g., source address, destination address) of the first unicast connection and a duration of the first timer; or, the first information includes the first measurement object and a duration of the first timer corresponding to the first measurement object.

The first measurement object may refer to the foregoing description about the measurement object.

For ease of understanding, a schematic diagram of one example according to an embodiment of the present application is shown in fig. 5. As shown in fig. 5, includes:

layer 3 of the first terminal device receives 501 the measurement results of layer 1. Such as the nth measurement.

Layer 3 of the first terminal device determines 502 whether the measurement result is the first measurement result.

If it is the first measurement, then 503 is performed, based on equation F_n＝M _nOr F_n-1＝M _nA measurement is taken and a Timer1 is started.

If it is not the first measurement, assuming it is the nth measurement, and n is an integer greater than 1, then 504 is performed to determine whether the Timer1 has timed out.

If the Timer1 times out, 505 is executed based on equation F_n＝M _nObtaining the measurement result after filtering the nth measurement result, or based on F_n-1＝M _nAnd calculating the measurement result after the nth measurement result is filtered.

If the Timer1 has not timed out, then 506 is executed to use equation F_n＝(1-α)*F _n-1+α*M _nAnd performing filtering to calculate the measurement result after filtering the nth measurement result. Specific explanations of the formulas may be found with reference to the foregoing description.

507, the layer 3 of the first terminal device restarts the Timer 1.

It is to be understood that the example in fig. 5 is described with the first Timer being Timer 1.

It will also be appreciated that layer 3 of the first terminal device may perform the flow of figure 5 each time a measurement of layer 1 is received, in order to perform a filtering operation.

In the embodiment of the application, when the first terminal device executes the filtering operation, the first timer is introduced, and the filtering operation is performed based on the state of the first timer when the measurement result is obtained, so that the measurement result obtained after the long-time transmission interruption does not need to be filtered with the previous measurement result, the expected smooth filtering effect is avoided, and the filtering effect of the side chain measurement result is improved.

The application also provides a communication method, aiming at the non-periodic reference signal of the side chain, different filtering parameters are introduced for different time intervals, the situation that the side chain measurement result is filtered by using the same filtering parameter all the time is avoided, and the filtering smoothing effect of the side chain measurement result is improved. Fig. 6 shows a schematic interaction diagram of a communication method 600 according to yet another embodiment of the present application. It is understood that the first terminal device in fig. 6 may be the V2X device 1 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 1; the second terminal device may be the V2X device 2 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 2. For example, the V2X device is a terminal device. It is further understood that, in fig. 6, part or all of information interacted between the devices may be carried in an existing message, channel, signal, or signaling, or may be a newly defined message, channel, signal, or signaling, which is not limited in this respect. It is also to be understood that portions of the description in fig. 6 (such as specific explanations of terms or steps) may refer to the description in method 300. As shown in fig. 6, the method 600 includes:

s601, a first terminal device obtains an nth measurement result of a first unicast connection, where the first unicast connection is a unicast connection between the first terminal device and a second terminal device.

The description of the first terminal device and the second terminal device may be introduced above, and is not repeated here to avoid redundancy.

The nth measurement result can be understood as the measurement result obtained this time. n is an integer greater than 1. The n-1 th measurement represents the last measurement acquired.

S602, the first terminal device determines a time interval between a receiving time of the nth measurement result and a receiving time of an n-1 th measurement result, n being an integer greater than 1.

S603, the first terminal device determines a first filtering parameter according to the first corresponding relationship and the time interval.

Optionally, the first filtering parameter may include: filter factors and/or filter coefficients. Here, the filter factor may be understood as α in the foregoing filter formula, and the filter coefficient may be understood as k in the foregoing filter formula.

The first corresponding relationship may include a plurality of different time intervals, and a filtering parameter corresponding to each time interval. Alternatively, the first correspondence may be understood as a correspondence between the duration range and the filter parameters (filter factors and/or filter coefficients). The first terminal device may determine a duration range to which the time interval belongs, and then may determine a first filtering parameter corresponding to the duration range based on the first corresponding relationship, that is, the filtering parameter corresponding to the time interval.

Optionally, the first corresponding relationship may be predefined, or may be configured by the network device, which is not limited to this.

S604, the first terminal device performs filtering processing on the nth measurement result by using the first filtering parameter.

For the aperiodic reference signal with the side chain, if the filtering is performed by using the same filtering parameter, the obtained filtering result is not smooth enough. In the embodiment of the application, the first terminal device determines the first filtering parameter corresponding to the time interval through the first corresponding relationship, so as to implement that different time intervals correspond to different filtering parameters, or different time intervals correspond to different filtering processes, thereby ensuring the filtering smoothing effect.

Similar to the method 300, in the method 600, the first terminal device determines the time interval between the reception times of the two measurement results, which may also be implemented by a timer.

Optionally, the method 600 further comprises: when the first terminal equipment acquires the (n-1) th measurement result, starting a first timer; wherein, S602 includes: and when the first terminal equipment acquires the nth measurement result, acquiring the value of the first timer, wherein the time interval is the value of the first timer.

Optionally, after the first terminal device obtains the nth measurement result, the method 600 further includes: and the first terminal equipment restarts the first timer.

Optionally, the method 600 further comprises: the first terminal device maintaining the first timer for the first unicast connection; or, the first terminal device maintains the first timer for the first measurement object of the first unicast connection.

Alternatively, as explained herein, assuming that the granularity of the timer is predefined by the protocol, the network device may configure the timer with corresponding granularity and corresponding relationship. The corresponding relation is used for the terminal equipment to determine the filtering parameters corresponding to the time intervals. The description of the correspondence relationship may refer to the description about the first correspondence relationship below.

For example, the protocol predefines a timer for each unicast connection, and the network device configures a corresponding relationship of timers for each unicast connection. For another example, the protocol predefines a timer for each terminal device, and then the network device configures a corresponding correspondence for each terminal device. For another example, the protocol predefines a timer for each measurement object, and then the network device configures a corresponding correspondence for each measurement object. Illustratively, the protocol predetermines the granularity of the timer as a unicast connection, and the network device configures a corresponding correspondence for the first unicast connection. Illustratively, the protocol predetermines the granularity of the timer as the measurement object, and the network device configures a corresponding relationship for the first measurement object of the first unicast connection.

Or, optionally, the network device may also configure the granularity of the first timer. That is, whether the first timer is associated with a certain terminal device, a certain measurement object, or a certain unicast connection is configured by the network device.

The first terminal device may maintain different timers for different unicast connections. Alternatively, layer 3 of the first terminal device may maintain a timer for different measurement objects of the same unicast connection.

For a detailed description of the first timer, reference may be made to the description of the method 300, and a detailed description thereof is omitted here to avoid redundancy.

In the embodiment of the present application, the time interval between two measurement results that are continuously received by the layer 3 of the first terminal device from the layer 1 may be defined as Δ t. For example, the time interval between t1 and t2 in FIG. 2 is defined as Δ t1, the time interval between t2 and t3 is defined as Δ t2, and so on. When the values of Δ t are different, the filtering parameters adopted when the layer 3 of the first terminal device performs filtering are different. The filter parameter corresponding to Δ t may be obtained by the first correspondence relationship. Illustratively, the first correspondence may be a protocol predefined table. The first correspondence relationship is described below in conjunction with tables 1 and 2.

TABLE 1

Delta t value range	Range of Range	Filter factor	Coefficient of filtration
Range1	(0,T1]	a ₁	k ₁
Range2	(T1,T2]	a ₂	k ₂
Range3	(T2,T3]	a ₃	k ₃
Range4	(T3,∞)	-	-

Taking Range1 in Table 1 as an example, Range1 corresponds to (0, T1)]Is a time length range; (0, T1]Indicating that the value of delta T is greater than 0 and less than or equal to T1. If the first terminal device determines that the value of Δ T falls into Range1, it can obtain (0, T1) from table 1]The corresponding filter factor is a₁Corresponding to a filter coefficient of k₁. In Table 1, the filter factor a and the filter coefficient satisfy a_i＝1/2 ^(ki/4)And i is an integer. For the last row in Table 1, Range4 is (T3, ∞) indicating that when Δ T is greater than T3, no layer 3 filtering is performed, and it can also be understood that the latest measurement received is treated as the first measurement, i.e., F_n＝M _nReference may be made specifically to the description of method 300.

TABLE 2

Delta t value range	Range of Range	Filter factor	Coefficient of filtration
Range1	(0,T1)	a ₁	k ₁
Range2	[T1,T2)	a ₂	k ₂
Range3	[T2,T3)	a ₃	k ₃
Range4	[T3,∞)	-	-

Taking Range2 in table 2 as an example, the duration Range is [ T1, T2) corresponding to Range 2; [ T1, T2) indicates that the value of Δ T is greater than or equal to T1 and less than T2. If the first terminal device determines that the value of Δ T falls into Range2, it can be obtained from table 2 that the filter factor corresponding to [ T1, T2) is a₂Corresponding to a filter coefficient of k₂. In Table 2, the filter factor a and the filter coefficient also satisfy a_i＝1/2 ^(ki/4)And i is an integer. For the last row in Table 2, Range4 is [ T3, ∞) ] indicating that when Δ T is greater than or equal to T3, no layer 3 filtering is performed, and it can also be understood that the latest measurement received is treated as the first measurement, i.e., F_n＝M _nOr, using F_n-1＝M _nThe measurement result after the filtering process is calculated, which may specifically refer to the description in the method 300.

It is understood that tables 1 and 2 are only exemplary descriptions, and the values of the time interval Δ t are divided into 4 time length ranges, and each time length range corresponds to one filter factor or filter coefficient, but the embodiment of the present application is not limited thereto. In fact, the values of the time interval Δ t in table 1 or table 2 may have more time length ranges, each time length range corresponds to a filter factor or filter coefficient, and each time length range corresponds to a filter factor or filter coefficient.

It is also understood that the division of the duration ranges in tables 1 and 2 may have other forms, and is not particularly limited.

Alternatively, the first correspondence may be a function related to Δ t or a time duration Range (Range), which is used to determine a filter parameter or to determine a filtered measurement result, such as a filter parameter filter factor or a filter coefficient. Illustratively, the first correspondence is represented by: α ═ f (Δ t), α represents a filter factor, that is, the value of Δ t can be substituted into a function to obtain α; or k ═ f (Δ t), where k denotes a filter coefficient, that is, k can be obtained by substituting the value of Δ t into a function;or, F_nF (Δ t), that is, the value of Δ t may be substituted into the function to obtain the measurement result after the filtering process. Wherein, F_nF (Δ t) may be based on α ═ F (Δ t) or k ═ F (Δ t), and F_n＝(1-α)*F _n-1+α*M _nDerived.

The first correspondence may also be pre-configured, or the network device sends it by dedicated signaling or broadcast message, for example. Optionally, the method 600 further comprises: the network device sends configuration information to the first terminal device, the configuration information includes first indication information and information of a first filtering parameter, the first indication information and the first filtering parameter have the first corresponding relation, and the first indication information is used for indicating a duration range. Correspondingly, the first terminal device receives the configuration information from the network device.

Optionally, the first indication information includes: an upper boundary value of the time length range and/or a lower boundary value of the time length range. For example, the first indication information may include only the upper boundary value of each duration range. For another example, the first indication information may include only the lower boundary value of each duration range. For another example, the first indication information may include an upper boundary value and a lower boundary value for each duration range.

Illustratively, the configuration information sent by the network device may include a list of time threshold values and information of the filtering parameters corresponding to each time threshold value. The time threshold value list comprises a plurality of time threshold values which are sequentially arranged according to an ascending order or a descending order. The time threshold value may represent an upper boundary value of the duration range or may represent a lower boundary value of the duration range. For example, the list of time threshold values includes a plurality of upper boundary values: t1, T2, and T3, then the duration range corresponding to T1 may be (0, T1), the duration range corresponding to T2 may be (T1, T2), the duration range corresponding to T3 may be (T2, T3], for example, the time threshold list includes a plurality of lower boundary values T1, T2, and T3, then the duration range corresponding to T1 may be [ T1, T2], the duration range corresponding to T2 may be [ T2, T3], and the duration range corresponding to T3 may be [ T3, infinity ").

Optionally, S603 includes: and the first terminal equipment determines a duration range to which the time interval belongs, and determines the first filtering parameter corresponding to the duration range according to the first corresponding relation.

And the first terminal equipment determines the duration range to which the first terminal equipment belongs based on the time interval, and then searches for a first filtering parameter corresponding to the duration range based on the first corresponding relation, so that the first filtering parameter is used for filtering.

Optionally, the configuration information includes indication information of a plurality of duration ranges and information of a plurality of filtering parameters, and the information of the plurality of duration ranges and the plurality of filtering parameters have a corresponding relationship. That is, the network device may issue the indication information of each duration range in the plurality of duration ranges and the information of the filter parameter corresponding to each duration range information. The indication information of each duration range comprises an upper boundary value of the corresponding duration range and/or a lower boundary value of the duration range.

In the embodiment of the application, for aperiodic reference signals, the first terminal device can obtain different filtering parameters corresponding to different time intervals through the first corresponding relation, so that filtering processing is performed by adopting different filtering parameters, and the filtering smoothing effect of side chain measurement results is improved.

Currently, a sending end UE connected in a unicast mode receives a measurement result from an opposite end UE to evaluate a path loss between the two UEs, so as to adjust a sending power and perform data transmission with the adjusted sending power. For the first data transmission after no data transmission for a long time, the distance between two UEs may have a relatively large change, and if the sending-end UE still sends with the previously adjusted power, the problem of improper power (for example, too much power or too little power) may occur. Since the initial transmission power configured by the network device is approximately the power that can satisfy the data transmission of the UE, and at least the initial transmission power can be adjusted to the appropriate transmission power at the fastest speed, for the first data transmission after no data transmission for a long time, the transmission power is considered to be returned to the initial transmission power for data transmission in the embodiment of the present application.

Fig. 7 shows a schematic interaction diagram of a communication method 700 according to another embodiment of the present application. It is understood that the first terminal device in fig. 7 may be the V2X device 1 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 1; the second terminal device may be the V2X device 2 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 2. For example, the V2X device is a terminal device. It is further understood that, in fig. 7, part or all of the information interacted between the devices may be carried in an existing message, channel, signal, or signaling, or may be a newly defined message, channel, signal, or signaling, which is not limited in this respect. As shown in fig. 7, the method 700 includes:

s701, a second terminal device sends data of a first unicast connection L times at a first time using a first transmission power, where the first unicast connection is a unicast connection between the second terminal device and a first terminal device.

It is understood that the method 700 is described by taking the second terminal device as an example, but not limited to this, and in fact, the first terminal device may also perform the method 700.

The first transmit power is the power at which the second terminal device transmits data of the first unicast connection the lth time. The first transmission power is adjusted by the second terminal device, and can satisfy the power required for sending the data of the first unicast connection for the L-th time.

S702, the second terminal device determines a time interval between a second time and the first time, where the second time is a time when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time.

Here, the first time and the second time may be a concept of time. The second terminal device needs to know the time interval between two times of data transmission through the first time and the second time.

And S703, the second terminal device determines the power used by the second terminal device to send the data of the first unicast connection in the L +1 th time according to the time interval and the preset duration.

Optionally, the preset duration may be related to the terminal device (for example, different terminal devices may correspond to different preset durations), or may be related to the unicast connection (for example, different unicast connections correspond to different preset durations). And the second terminal equipment determines whether to continue using the first transmission power or not by judging the size relation between the time interval and the preset time length. Optionally, S703 includes: when the time interval exceeds the preset time length, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection at the L +1 th time is as follows: transmitting the data of the first unicast connection for the first time; or, in the case that the time interval does not exceed the preset time duration, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the transmission power of the data of the first unicast connection sent for the L th time, that is, the first transmission power.

If the time interval exceeds the preset time duration, for example, is greater than or equal to the preset time duration, the second terminal device needs to fall back to the transmission power adopted for transmitting the data of the first unicast connection for the first time, that is, the initial transmission power, when transmitting the data of the first unicast connection for the L +1 th time.

Alternatively, the initial transmit power may be network device configured. Alternatively, the initial transmit power may be determined by the second terminal device based on a parameter. Illustratively, the parameters include parameters such as path loss, P0 or alpha (refer to the existing description).

If the time interval does not exceed the preset time duration, for example, is less than the preset time duration, the second terminal device may still use the first transmission power for data transmission when transmitting the data of the first unicast connection for the L +1 th time.

Similarly, the second terminal device may acquire the time interval between two times of sending data by using a timer. Optionally, the method 700 further includes: the second terminal equipment starts a first timer when sending the data of the first unicast connection for the L time; wherein, S702 comprises: and the second terminal equipment acquires the value of the first timer at the second time, wherein the value of the first timer is the time interval.

Specifically, the second terminal device may start a timer, for example, the first timer, when sending the data of the first unicast connection for the L-th time, and then read or record a value of the first timer when sending the data of the first unicast connection for the L + 1-th time (i.e., at the second time) to obtain the time interval.

The second terminal device may restart the first timer when transmitting the data of the first unicast connection for the L +1 th time, so that the value of the first timer may still be recorded when transmitting the data of the first unicast connection for the L +1 th time. Optionally, when the second terminal device sends the data of the first unicast connection L +1 th time, the method 700 further includes: and the second terminal equipment restarts the first timer.

For example, the first timer may be started when the second terminal device sends the data of the first unicast connection for the first time, and stop the first timer, record a value of the first timer, and restart the first timer every time the second terminal device sends the data of the first unicast connection. The sequence of executing "stop the first timer", "read the value of the first timer", and "restart the first timer" is not limited herein.

The granularity corresponding to the first timer is not specifically limited in the embodiment of the present application. The first timer may be associated with a unicast connection (e.g., destination address, source address, etc.) or with the end device.

Wherein, the first timer is associated with the terminal device, and can be understood as: one timer may correspond to each terminal device.

Alternatively, the granularity of the first timer may be maintained by the terminal device (e.g., the second terminal device) itself, and is not particularly limited. It is understood that the preset time period may also be related to the granularity.

Alternatively, as explained herein, assuming that the granularity of the timer is predefined by the protocol, the network device may configure the timer with a corresponding preset duration. For example, the protocol predefines a timer for each unicast connection, and the network device configures a preset duration corresponding to the timer for each unicast connection. For another example, the protocol predefines that each terminal device corresponds to one timer, and then the network device configures a preset duration corresponding to the timer for each terminal device. Here, the preset durations configured for the timers with different granularity types or the timers with the same granularity type may be the same or different, and are not limited herein. Illustratively, the granularity of the first timer is predefined by the protocol, and the network device may configure the first timer with a corresponding preset duration. Or, optionally, the network device may also configure the granularity of the first timer. That is, whether the first timer is associated with a certain terminal device or with a certain unicast connection is configured by the network device.

The second terminal device may maintain different timers for different unicast connections.

Optionally, the method 700 includes: the second terminal device maintains the first timer for the first unicast connection. Layer 3 of the second terminal device may illustratively maintain the first timer for the first unicast connection. In the embodiment of the application, the second terminal device judges whether the adjusted transmission power is continuously effective by introducing the first timer, so that the problem of excessive power or insufficient power caused by power transmission before continuous use after data transmission is not performed for a long time is solved.

The method 700 is to introduce a timer to determine whether the adjusted transmission power continues to be valid (or whether the transmission power used when data was transmitted last time is used), and hereinafter, the method will determine whether the adjusted transmission power continues to be valid (or whether the transmission power used when data was transmitted last time is used) by introducing the timer. It is to be appreciated that some of the term interpretations referred to in method 800 below may be referred to as described in method 700.

Fig. 8 shows a schematic interaction diagram of a communication method 800 according to yet another embodiment of the present application. It is understood that the first terminal device in fig. 8 may be the V2X device 1 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 1; the second terminal device may be the V2X device 2 in fig. 1, or may be a device (e.g., a processor, a chip, or a system of chips, etc.) in the V2X device 2. For example, the V2X device is a terminal device. It is further understood that, in fig. 8, part or all of information interacted between the devices may be carried in an existing message, channel, signal, or signaling, or may be a newly defined message, channel, signal, or signaling, which is not limited in this respect. As shown in fig. 8, the method 800 includes:

s801, a second terminal device uses a first transmit power to send data of a first unicast connection L times, where the first unicast connection is a unicast connection between the second terminal device and a first terminal device.

It is understood that the method 800 is described by taking the second terminal device as an example, but not limited to this, and in fact, the first terminal device may also perform the method 800.

The description of the first transmit power may refer to the description in the method 700, and is not repeated here to avoid redundancy.

S802, the second terminal device determines, according to the state of the first timer when transmitting the data of the first unicast connection for the L +1 th time, the power used by the second terminal device to transmit the data of the first unicast connection for the L +1 th time.

And when the second terminal equipment sends the data of the first unicast connection for the L +1 th time, the first timer is started. The second terminal device needs to determine the state of the first timer, and determines whether to continue to use the adjusted transmission power for data transmission when transmitting the data of the first unicast connection for the L +1 th time or whether to continue to use the transmission power used when transmitting the data of the first unicast connection for the L th time according to the state of the first timer.

Optionally, the method 800 further comprises: the second terminal equipment starts a first timer when sending the data of the first unicast connection for the Lth time by using the first transmission power; wherein, S802 includes: when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time, if the first timer is overtime, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the transmission power for sending the data of the first unicast connection for the first time, namely the initial transmission power; when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time, if the first timer is not over time, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the first transmission power. It is to be understood that, here, the first timer is started when the data of the first unicast connection is transmitted for the lth time by using the first transmission power, which is not limited to this, that is, the start time of the first timer is not specifically limited in this embodiment of the application. If the first timer is overtime when the second terminal device sends the data of the first unicast connection for the L +1 th time, the second terminal device needs to fall back to the transmission power adopted for sending the data of the first unicast connection for the first time for data transmission, namely the initial transmission power, when the second terminal device sends the data of the first unicast connection for the L +1 th time. Reference may be made to the description of method 700 for a related description of initial transmit power.

If the first timer is not overtime and is still in a running state when the second terminal device sends the data of the first unicast connection for the L +1 th time, the second terminal device can still adopt the first transmission power to perform data transmission when sending the data of the first unicast connection for the L +1 th time.

Optionally, when the second terminal device sends the data of the first unicast connection for the L +1 th time, if the first timer is overtime, the method 800 further includes: and restarting the first timer.

Illustratively, the working mechanism of the first timer may be as follows: the second terminal device may start the first timer the first time data of the first unicast connection is sent. When the second terminal equipment subsequently sends the data of the first unicast connection each time, if the first timer is not overtime, restarting the first timer, and sending the data by using the latest adjusted sending power; and if the first timer is overtime, restarting the first timer and transmitting by using the initial transmission power.

The granularity corresponding to the first timer is not specifically limited in the embodiment of the present application. The first timer may be associated with a unicast connection or, alternatively, with a terminal device. Wherein, the first timer is associated with the terminal device, and can be understood as: one timer may correspond to each terminal device.

Alternatively, the granularity of the first timer may be maintained by the second terminal device itself, which is not particularly limited.

Alternatively, as explained herein, assuming that the granularity of the timer is predefined by the protocol, the network device may configure the timer with a corresponding duration. For example, the protocol predefines a timer for each unicast connection, and the network device configures a corresponding duration of the timer for each unicast connection. For another example, the protocol predefines a timer for each terminal device, and then the network device configures a duration corresponding to the timer for each terminal device. Here, the configured time lengths of the network devices for the timers with different granularity types or the timers with the same granularity type may be the same or different, and are not limited herein. Illustratively, the granularity of the first timer is predefined by the protocol, and the network device may configure the duration of the first timer based on the granularity predefined by the protocol. Or, optionally, the network device may also configure the granularity of the first timer. That is, whether the first timer is associated with a certain terminal device or with a certain unicast connection is configured by the network device.

The second terminal device may maintain different timers for different unicast connections. Optionally, the method 800 further comprises: the second terminal device maintains the first timer for the first unicast connection.

Layer 3 of the second terminal device may illustratively maintain the first timer for the first unicast connection. For example, the layer 3 of the second terminal device may start the first timer when the data of the first unicast connection is sent for the first time, and stop the first timer and restart the first timer each time the data of the first unicast connection is sent subsequently.

Optionally, the information (e.g., duration) related to the first timer may be obtained by the second terminal device from the pre-configuration. Alternatively, the first timer may be fixed. Alternatively, the information related to the first timer may be obtained by the second terminal device from another device.

Optionally, the method 800 further comprises: and the second terminal equipment receives third information, wherein the third information comprises information for configuring the first timer. Illustratively, the third information may be acquired by the second terminal device from the network device. Alternatively, the third information may be acquired by the second terminal device from the first terminal device. For example, the network device configures the information of the first timer by broadcasting, or configures the information of the first timer by dedicated signaling.

Optionally, the third information includes an identification (e.g., source address, destination address) of the first unicast connection and a duration of the first timer.

In the embodiment of the application, the second terminal device judges whether the adjusted transmission power is continuously effective or not by introducing the first timer, so that the problem of excessive power or insufficient power caused by power transmission before continuous use after data transmission is not performed for a long time is solved.

It is understood that some optional features in the embodiments of the present application may be implemented independently without depending on other features in some scenarios, such as a currently-based solution, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatuses provided in the embodiments of the present application may also implement these features or functions, which are not described herein again.

It should be understood that the various aspects of the embodiments of the present application can be reasonably combined and explained, and the explanation or explanation of the various terms appearing in the embodiments can be mutually referred to or explained in the various embodiments, which is not limited.

It should also be understood that, in the various embodiments of the present application, the size of the serial number of each process described above does not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of each process. The various numbers or serial numbers involved in the above processes are merely used for convenience of description and should not be construed as limiting the implementation processes of the embodiments of the present application in any way.

Corresponding to the method provided by the above method embodiment, the embodiment of the present application further provides a corresponding apparatus, where the apparatus includes a module for executing the above embodiment. The module may be software, hardware, or a combination of software and hardware. It is understood that the technical features described in the method embodiments are equally applicable to the following apparatus embodiments.

Fig. 9 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 9, the communication device 1000 may include a processing unit 1200. Optionally, the communication device 1000 further comprises a transceiver unit 1100.

In one possible design, the communication apparatus 1000 may correspond to the terminal device in the above method embodiment, and may be, for example, the terminal device or a chip configured in the terminal device.

Specifically, the communication apparatus 1000 may correspond to the first terminal device in the method 300 or the method 400 or the method 600 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the first terminal device in the method 300 in fig. 3, or the method 400 in fig. 4, or the method in fig. 5, or the method 600 in fig. 6. Also, the units in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flows of the first terminal device in the method 300 in fig. 3, the method 400 in fig. 4, the method in fig. 5, or the method 600 in fig. 6.

In one implementation, the processing unit 1200 may be configured to: acquiring an nth measurement result of a first unicast connection, wherein the first unicast connection is a unicast connection between the first terminal device and a second terminal device; determining a time interval between a time of receipt of the nth measurement and a time of receipt of an (n-1) th measurement, n being an integer greater than 1; and executing a filtering operation according to the time interval.

Optionally, the processing unit 1200 is configured to perform a filtering operation according to the time interval, and includes: when the time interval meets the preset time length, carrying out filtering processing on the nth measurement result; and when the time interval does not meet the preset time length, taking the nth measurement result as a measurement result after filtering processing.

Optionally, the processing unit 1200 is configured to perform filtering processing on the nth measurement result, and includes: the measurement result after the filtering process satisfies the following formula F_n＝(1-α)*F _n-1+α*M _nOr, using the following formula F_n＝(1-α)*F _n-1+α*M _nCarrying out filtering processing on the nth measurement result; wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the result of the nth measurement and,

k is a filter coefficient.

Optionally, the processing unit 1200 is configured to use the nth measurement result as a measurement result after filtering processing, and includes: the measurement result after the filtering process satisfies the following formula F_n＝M _n(ii) a Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement.

Optionally, the processing unit 1200 is further configured to start a first timer when the n-1 th measurement result is obtained; and when the nth measurement result is obtained, obtaining the value of the first timer, wherein the time interval is the value of the first timer.

Optionally, the processing unit 1200 is further configured to restart the first timer when the nth measurement result is obtained.

Optionally, the processing unit 1200 is further configured to maintain the first timer for the first unicast connection; alternatively, the first timer is maintained for a first measurement object of the first unicast connection.

Optionally, the processing unit 1200 is configured to obtain an nth measurement result of the first unicast connection, and includes: controlling a radio resource control layer of the apparatus 1000 to receive the nth measurement result from a physical layer of the apparatus 1000; or, the transceiver unit 1100 is invoked to receive the nth measurement result from the second terminal device.

Alternatively, in another implementation, the processing unit 1200 may be configured to: acquiring an nth measurement result of a first unicast connection, wherein the first unicast connection is established between the first terminal device and a second terminal device; and executing filtering operation according to the state of the first timer when the nth measurement result is obtained.

Optionally, the processing unit 1200 is further configured to start the first timer when the n-1 th measurement result is obtained.

Optionally, the processing unit 1200 is configured to perform a filtering operation according to a state of a first timer when the nth measurement result is obtained, where the filtering operation includes: when the nth measurement result is obtained, if the first timer is not overtime, filtering the nth measurement result; and when the nth measurement result is obtained, if the first timer is overtime, taking the nth measurement result as the measurement result after filtering processing.

Optionally, the processing unit 1200 is configured to perform filtering processing on the nth measurement result, and includes:

filtering the nth measurement result by adopting the following formula: f_n＝(1-α)*F _n-1+α*M _n(ii) a Or the measurement result after the filtering process satisfies the following formula: f_n＝(1-α)*F _n-1+α*M _n(ii) a Wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the result of the nth measurement and,

k is a filter coefficient.

Optionally, the processing unit 1200 is configured to use the nth measurement result as a measurement result after filtering processing, and includes: filtering the nth measurement result by adopting the following formula: f_n＝M _n(ii) a Or the measurement result after the filtering process satisfies the following formula: f_n＝M _n(ii) a Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement.

Optionally, the processing unit 1200 is further configured to, when the nth measurement result is obtained, restart the first timer if the first timer is not timed out.

Optionally, the processing unit 1200 is further configured to maintain the first timer for the first unicast connection; or, the first timer is maintained for a first measurement object of the first unicast connection.

Optionally, the processing unit 1200 is further configured to invoke the transceiver unit 1100 to receive first information, where the first information includes information for configuring a duration of the first timer.

Alternatively, in yet another implementation, the processing unit 1200 may be configured to: acquiring an nth measurement result of a first unicast connection, wherein the first unicast connection is a unicast connection between the first terminal device and a second terminal device; determining a time interval between a time of receipt of the nth measurement and a time of receipt of an (n-1) th measurement, n being an integer greater than 1; determining a first filtering parameter according to the first corresponding relation and the time interval; and performing filtering processing on the nth measurement result by using the first filtering parameter.

Optionally, the processing unit 1200 is further configured to start a first timer when the n-1 th measurement result is obtained; and after the nth measurement result is obtained, obtaining the value of the first timer, wherein the time interval is the value of the first timer.

Optionally, the processing unit 1200 is further configured to restart the first timer after the nth measurement result is obtained.

Optionally, the transceiver unit 1100 is configured to receive configuration information from a network device, where the configuration information includes first indication information and information of a first filtering parameter, where the first indication information and the first filtering parameter have the first corresponding relationship, and the first indication information is used to indicate a duration range.

Optionally, the processing unit 1200 is configured to determine a first filtering parameter according to the first corresponding relationship and the time interval, and includes: and determining a duration range to which the time interval belongs, and determining the first filtering parameter corresponding to the duration range according to the first corresponding relation.

Optionally, the configuration information includes indication information of a plurality of duration ranges and information of a plurality of filtering parameters, where the information of the plurality of duration ranges and the plurality of filtering parameters have a corresponding relationship.

Or, in particular, the communication apparatus 1000 may correspond to the second terminal device in the method 700 or the method 800 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the second terminal device in the method 700 or the method 800 in fig. 7 or fig. 8. Also, the units in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flows of the second terminal device in the method 700 in fig. 7 or the method 800 in fig. 8.

In one implementation, the transceiving unit 1100 and the processing unit 1200 may be respectively configured to:

the transceiving unit 1100 is configured to send data of a first unicast connection at a first time using a first transmission power for an lth time, where the first unicast connection is a unicast connection established between the second terminal device and the first terminal device.

The processing unit 1200 is configured to determine a time interval between a second time and the first time, where the second time is a time when the second terminal device prepares to send data of the first unicast connection for the L +1 th time.

The processing unit 1200 is further configured to determine, according to the time interval and a preset duration, power used by the second terminal device to send the data of the first unicast connection L +1 th time.

Optionally, the processing unit 1200 is configured to determine, according to the time interval and a preset duration, power used by the second terminal device to send the data of the first unicast connection L +1 th time, where the power used by the second terminal device to send the data of the first unicast connection includes: determining that the power used by the second terminal device to send the data of the first unicast connection at the L +1 th time is the transmitting power for sending the data of the first unicast connection for the first time under the condition that the time interval exceeds a preset time length; or, when the time interval does not exceed the preset time length, determining that the power used by the second terminal device to send the data of the first unicast connection at the L +1 th time is the transmission power of the data of the first unicast connection sent at the L th time.

Optionally, the processing unit 1200 is further configured to start a first timer when sending the data of the first unicast connection for the lth time; and at the second time, acquiring the value of the first timer, wherein the value of the first timer is the time interval.

Optionally, the processing unit 1200 is further configured to restart the first timer when the L +1 th time of sending the data of the first unicast connection.

Optionally, the processing unit 1200 is further configured to maintain the first timer for the first unicast connection.

Alternatively, in another implementation, the transceiving unit 1100 and the processing unit 1200 may be respectively configured to:

the transceiving unit 1100 is configured to send data of a first unicast connection for the lth time by using a first transmission power, where the first unicast connection is a unicast connection established between the second terminal device and the first terminal device.

The processing unit 1200 is configured to determine, according to a state of a first timer when the L +1 th time sends the data of the first unicast connection, a power used by the second terminal device to send the data of the first unicast connection L +1 th time, where the second time is a time when the second terminal device prepares to send the data of the first unicast connection L +1 th time.

Optionally, the processing unit 1200 is further configured to start a first timer when transmitting data of the first unicast connection for the lth time using the first transmission power; when preparing to send the data of the first unicast connection for the L +1 th time, if the first timer is overtime, determining that the power used by the second terminal device for sending the data of the first unicast connection for the L +1 th time is the transmission power for sending the data of the first unicast connection for the first time; when preparing to send the data of the first unicast connection for the L +1 th time, if the first timer is not overtime, determining that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the first transmission power.

Optionally, the processing unit 1200 is further configured to, when the data of the first unicast connection is sent for the L +1 th time, restart the first timer if the first timer is overtime.

Optionally, the transceiver unit 1100 is further configured to receive third information, where the third information includes information for configuring the first timer.

It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It should also be understood that when the communication apparatus 1000 is a terminal device (a first terminal device or a second terminal device), the transceiver unit 1100 in the communication apparatus 1000 may correspond to the transceiver 2020 in the terminal device 2000 shown in fig. 10, and the processing unit 1200 in the communication apparatus 1000 may correspond to the processor 2010 in the terminal device 2000 shown in fig. 10.

It should also be understood that when the communication device 1000 is a chip configured in a terminal device, the transceiver unit 1200 in the communication device 1000 may be an input/output interface circuit.

In one possible design, the communication apparatus 1000 may correspond to the network device in the above method embodiment, and may be, for example, a network device or a chip configured in a network device.

Specifically, the communication apparatus 1000 may correspond to a network device in the method of the embodiment of the present application, and the communication apparatus 1000 may include a unit for executing the method executed by the network device in the foregoing method embodiment. Each unit in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flow of the network device in the foregoing method embodiment.

At this time, the network device 1000 includes a transceiving unit 1100. Optionally including a processing unit 1200.

Optionally, the transceiver unit 1100 is configured to send configuration information to the first terminal device, where the configuration information includes first indication information and information of a first filtering parameter, the first indication information and the first filtering parameter have the first corresponding relationship, and the first indication information is used to indicate a duration range.

Optionally, the transceiver unit 1100 is configured to send first information to the first terminal device, where the first information includes information for configuring a duration of the first timer.

It should be understood that when the communication device 1000 is a base station, the transceiver unit 1100 in the communication device 1000 may correspond to the radio frequency unit 3012 and the antenna 3011 in the base station 3000 shown in fig. 11, and the processing unit 1100 in the communication device 1000 may be implemented by at least one processor, for example, may correspond to the processor 3022 in the base station 3000 shown in fig. 11.

It should also be understood that when the communication device 1000 is a chip configured in a network device, the transceiver unit 1200 in the communication device 1000 may be an input/output interface.

Optionally, the communication device 1000 further includes a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit may be implemented by at least one memory, for example, may correspond to the memory 3201 in the base station 3000 in fig. 11.

Fig. 10 is a schematic structural diagram of a terminal device 2000 according to an embodiment of the present application. The terminal device 2000 can be applied to the system shown in fig. 1, and performs the functions of the terminal device (the first terminal device or the second terminal device) in the above-mentioned method embodiment. As shown in fig. 10, the terminal device 2000 includes a processor 2010 and a transceiver 2020. Optionally, the terminal device 2000 further comprises a memory 2030. The processor 2010, the transceiver 2002 and the memory 2030 are in communication with each other through an internal connection path to transmit control or data signals, the memory 2030 is used for storing a computer program, and the processor 2010 is used for calling the computer program from the memory 2030 and executing the computer program to control the transceiver 2020 to transmit and receive signals. Optionally, the terminal device 2000 may further include an antenna 2040, configured to transmit uplink data or uplink control signaling output by the transceiver 2020 by using a wireless signal.

The processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program codes stored in the memory 2030 to achieve the above functions. In particular, the memory 2030 may be integrated with the processor 2010 or may be separate from the processor 2010. The processor 2010 may correspond to the processing unit in fig. 9.

The transceiver 2020 may correspond to the communication unit in fig. 9, and may also be referred to as a transceiver unit. The transceiver 2020 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Wherein the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It should be understood that the terminal device 2000 shown in fig. 10 can implement the respective processes (first terminal device or second terminal device) related to the terminal device in the method embodiments shown in fig. 3 to 8. The operations or functions of the modules in the terminal device 2000 are respectively to implement the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

The processor 2010 may be configured to perform the actions described in the preceding method embodiments that are implemented within the terminal device, and the transceiver 2020 may be configured to perform the actions described in the preceding method embodiments that the terminal device transmits to or receives from the network device. Please refer to the description of the previous embodiment of the method, which is not repeated herein.

Optionally, the terminal device 2000 may further include a power supply 2050 for supplying power to various devices or circuits in the terminal device.

In addition, in order to further improve the functions of the terminal device, the terminal device 2000 may further include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, a sensor 2100, and the like, and the audio circuit may further include a speaker 2082, a microphone 2084, and the like.

Fig. 11 is a schematic structural diagram of a network device provided in the embodiment of the present application, which may be a schematic structural diagram of a base station 3000, for example. The base station 3000 can be applied to the system shown in fig. 1, and performs the functions of the network device in the above method embodiment. As shown, the base station 3000 may include one or more DUs 3010 and one or more CUs 3020. The CU 3020 may communicate with a NG core (next generation core network, NC). The DU 3010 may include at least one antenna 3011, at least one radio unit 3012, at least one processor 3013, and at least one memory 3014. The DU 3010 is mainly used for transceiving radio frequency signals, converting radio frequency signals to baseband signals, and performing partial baseband processing. The CU 3020 may include at least one processor 3022 and at least one memory 3021. The CU 3020 and the DU 3010 may communicate with each other via an interface, where a Control Plane (CP) interface may be Fs-C, such as F1-C, and a User Plane (UP) interface may be Fs-U, such as F1-U.

The CU 3020 is mainly used for performing baseband processing, controlling a base station, and the like. The DU 3010 and the CU 3020 may be physically located together or physically located separately, that is, distributed base stations. The CU 3020 is a control center of the base station, and may also be referred to as a processing unit, and is mainly configured to perform a baseband processing function. For example, the CU 3020 may be configured to control the base station to perform the operation procedure related to the access network device in the above method embodiment.

Specifically, the baseband processing on the CU and the DU may be divided according to the protocol layers of the radio network, for example, the functions of the PDCP layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP layer, for example, the functions of the RLC layer and the MAC layer, are set in the DU. For another example, a CU realizes functions of an RRC layer and a PDCP layer, and a DU realizes functions of an RLC layer, an MAC layer, and a PHY layer.

Further, base station 3000 may optionally include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Wherein a DU may include at least one processor 3013 and at least one memory 3014, an RU may include at least one antenna 3011 and at least one radio frequency unit 3012, and a CU may include at least one processor 3022 and at least one memory 3021.

In an example, the CU 3020 may be formed by one or more single boards, where the multiple single boards may support a radio access network with a single access indication (e.g., a 5G network) or support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks) respectively. The memory 3021 and the processor 3022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits. The DU 3010 may be formed by one or more boards, where the boards may jointly support a radio access network with a single access instruction (e.g., a 5G network), and may also respectively support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks). The memory 3014 and the processor 3013 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be understood that the base station 3000 shown in fig. 11 can implement various processes involving network devices in the method embodiments shown in fig. 3 to 8. The operations and/or functions of the respective modules in the base station 3000 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

It should be understood that the base station 3000 shown in fig. 11 is only one possible architecture of a network device, and should not limit the present application in any way. The method provided by the application can be applied to access network equipment with other architectures. E.g. access network equipment including CUs, DUs and AAUs etc. The present application is not limited to the specific architecture of the network device.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to carry out the method on the terminal device side (first terminal device or second terminal device) in the embodiments shown in fig. 3 to 8.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable medium, which stores program codes, and when the program codes are run on a computer, the computer is caused to execute the method on the network device side in the embodiments shown in fig. 3 to 8.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is configured to perform the communication method in any of the above method embodiments.

The terminal device (first terminal device or second terminal device) and the network device in the communication apparatus and method embodiments in the above-mentioned respective apparatus embodiments completely correspond to each other, and the corresponding module or unit executes the corresponding steps, for example, the communication unit (transceiver) executes the steps of receiving or transmitting in the method embodiments, and other steps except for transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The number of the processors may be one or more.

Those skilled in the art will also appreciate that the various illustrative logical blocks and steps (step) set forth in the embodiments of the present application may be implemented in electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a Microcontroller (MCU), a programmable logic controller (PLD), or other integrated chip. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

The techniques described herein may be implemented by various means. For example, these techniques may be implemented in hardware, software, or a combination of hardware and software. For a hardware implementation, the processing units used to perform these techniques at a communication device (e.g., a base station, terminal, network entity, or chip) may be implemented in one or more general-purpose processors, DSPs, digital signal processing devices, ASICs, programmable logic devices, FPGAs, or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combinations of the above. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

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

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should also be understood that, in the present application, "when …", "if" and "if" all refer to the fact that the UE or the base station will perform the corresponding processing under certain objective conditions, and are not limited time, and do not require the UE or the base station to perform certain judgment actions, nor do they mean that there are other limitations.

Those of ordinary skill in the art will understand that: the various numbers of the first, second, etc. mentioned in this application are only used for the convenience of description and are not used to limit the scope of the embodiments of this application, but also to indicate the sequence.

Reference in the present application to an element using the singular is intended to mean "one or more" rather than "one and only one" unless specifically stated otherwise. In the present application, unless otherwise specified, "at least one" is intended to mean "one or more" and "a plurality" is intended to mean "two or more".

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A can be singular or plural, and B can be singular or plural.

The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Herein, the term "at least one of … …" or "at least one of … …" means all or any combination of the listed items, e.g., "at least one of A, B and C", may mean: the compound comprises six cases of separately existing A, separately existing B, separately existing C, simultaneously existing A and B, simultaneously existing B and C, and simultaneously existing A, B and C, wherein A can be singular or plural, B can be singular or plural, and C can be singular or plural.

It should be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The correspondence shown in the tables in the present application may be configured or predefined. The values of the information in each table are only examples, and may be configured to other values, which is not limited in the present application. When the correspondence between the information and each parameter is configured, it is not always necessary to configure all the correspondences indicated in each table. For example, in the table in the present application, the correspondence shown in some rows may not be configured. For another example, appropriate modification adjustments, such as splitting, merging, etc., can be made based on the above tables. The names of the parameters in the tables may be other names understandable by the communication device, and the values or the expression of the parameters may be other values or expressions understandable by the communication device. When the above tables are implemented, other data structures may be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables may be used.

As used herein, the term "predefined" in the context of the present application may be understood to mean defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing. The configuration in the embodiment of the present application may be understood as being notified through RRC signaling, MAC signaling, and physical layer information, where the physical layer information may be transmitted through a PDCCH or a PDSCH.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of communication, comprising:

a first terminal device obtains an nth measurement result of a first unicast connection, wherein the first unicast connection is a unicast connection between the first terminal device and a second terminal device;

the first terminal device determining a time interval between a reception time of the nth measurement result and a reception time of an n-1 th measurement result, n being an integer greater than 1;

and the first terminal equipment executes filtering operation according to the time interval.
The method of claim 1, wherein the first terminal device performs a filtering operation according to the time interval, comprising:

when the time interval meets the preset time length, the first terminal equipment carries out filtering processing on the nth measurement result;

and when the time interval does not meet the preset time length, the first terminal device takes the nth measurement result as a measurement result after filtering processing.
The method of claim 2, wherein the time interval satisfying a preset duration comprises: the time interval is less than or equal to a preset time length.
The method according to claim 3, wherein the first terminal device performs filtering processing on the nth measurement result, including: the measurement result after the filtering process satisfies F_n＝(1-α)*F _n-1+α*M _n；

Wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the result of the nth measurement and,
k is a filter coefficient.
The method according to claim 3, wherein the first terminal device uses the nth measurement result as the filtered measurement result, and comprises: the measurement result after the filtering process satisfies F_n＝M _n；

Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement.
The method according to any one of claims 1 to 5, further comprising:

when the first terminal equipment acquires the n-1 th measurement result, starting a first timer;

wherein the determining, by the first terminal device, a time interval between a reception time of the nth measurement result and a reception time of an n-1 th measurement result comprises:

and when the first terminal equipment acquires the nth measurement result, acquiring the value of the first timer, wherein the time interval is the value of the first timer.
The method according to claim 6, wherein when the first terminal device obtains the nth measurement result, the method further comprises:

and the first terminal equipment restarts the first timer.
The method according to claim 6 or 7, characterized in that the method further comprises:

the first terminal device maintains the first timer for the first unicast connection; alternatively, the first and second electrodes may be,

the first terminal device maintains the first timer for a first measurement object of the first unicast connection.
The method according to any of claims 1 to 8, wherein the obtaining of the nth measurement result of the first unicast connection by the first terminal device comprises:

receiving, by a radio resource control layer of the first terminal device, the nth measurement result from a physical layer of the first terminal device; alternatively, the first and second electrodes may be,

the first terminal device receives the nth measurement result from the second terminal device.
A method of communication, comprising:

a first terminal device obtains an nth measurement result of a first unicast connection, wherein the first unicast connection is a unicast connection between the first terminal device and a second terminal device;

and the first terminal equipment executes filtering operation according to the state of the first timer when the nth measurement result is obtained.
The method of claim 10, further comprising:

and starting the first timer when the first terminal equipment acquires the (n-1) th measurement result.
The method according to claim 10 or 11, wherein the first terminal device performs a filtering operation according to a state of a first timer when obtaining the nth measurement result, including:

when the first terminal device obtains the nth measurement result, if the first timer is not overtime, the first terminal device performs filtering processing on the nth measurement result;

and when the first terminal equipment acquires the nth measurement result, if the first timer is overtime, the first terminal equipment takes the nth measurement result as the measurement result after filtering processing.
The method according to any one of claims 10 to 12, wherein if the first timer has not timed out, the first terminal device performs filtering processing on the nth measurement result, including:

the measurement result after the filtering process satisfies F_n＝(1-α)*F _n-1+α*M _n；

Wherein, F_nIs to M_nThe measurement results after the filtering process, "+" indicates multiplication, F_n-1Is the measurement result after the last filtering process, M_nIs the result of the nth measurement and,
k is a filter coefficient.
The method according to any one of claims 10 to 12, wherein if the first timer expires, the first terminal device uses the nth measurement result as the measurement result after filtering, and includes: the measurement result after the filtering process satisfies F_n＝M _n；

Wherein, F_nIs to M_nMeasurement results after filtering, M_nIs the nth measurement.
The method according to any one of claims 10 to 14, wherein when the first terminal device obtains the nth measurement result, if the first timer has not timed out, the method further includes:

and the first terminal equipment restarts the first timer.
The method according to any one of claims 10 to 15, further comprising:

the first terminal device maintains the first timer for the first unicast connection; alternatively, the first and second electrodes may be,

the first terminal device maintains the first timer for a first measurement object of the first unicast connection.
The method according to any one of claims 10 to 16, further comprising:

the first terminal equipment receives first information, wherein the first information comprises information used for configuring the duration of the first timer.
The method of claim 17, wherein the first information comprises an identification of the first unicast connection and a duration of the first timer; or, the first information includes the first measurement object and a duration of the first timer corresponding to the first measurement object.
The method according to any of claims 10 to 18, wherein the obtaining of the nth measurement result of the first unicast connection by the first terminal device comprises:

receiving, by a radio resource control layer of the first terminal device, the nth measurement result from a physical layer of the first terminal device; alternatively, the first and second electrodes may be,

the first terminal device receives the nth measurement result from the second terminal device.
A method of communication, comprising:

a first terminal device obtains an nth measurement result of a first unicast connection, wherein the first unicast connection is a unicast connection between the first terminal device and a second terminal device;

the first terminal device determining a time interval between a reception time of the nth measurement result and a reception time of an n-1 th measurement result, n being an integer greater than 1;

the first terminal equipment determines a first filtering parameter according to the first corresponding relation and the time interval;

and the first terminal equipment uses the first filtering parameter to carry out filtering processing on the nth measurement result.
The method of claim 20, further comprising:

when the first terminal equipment acquires the n-1 th measurement result, starting a first timer;

wherein the determining, by the first terminal device, a time interval between a reception time of the nth measurement result and a reception time of an n-1 th measurement result comprises:

and the first terminal equipment acquires the value of the first timer after acquiring the nth measurement result, wherein the time interval is the value of the first timer.
The method according to claim 21, wherein after the first terminal device obtains the nth measurement result, the method further comprises:

and the first terminal equipment restarts the first timer.
The method according to claim 21 or 22, further comprising:

the first terminal device maintains the first timer for the first unicast connection; alternatively, the first and second electrodes may be,

the first terminal device maintains the first timer for a first measurement object of the first unicast connection.
The method of any one of claims 20 to 23, further comprising:

the first terminal device receives configuration information from a network device, wherein the configuration information includes first indication information and information of a first filtering parameter, the first indication information and the first filtering parameter have the first corresponding relation, and the first indication information is used for indicating a duration range.
The method according to claim 24, wherein the first terminal device determines a first filtering parameter according to the first corresponding relationship and the time interval, and comprises:

and the first terminal equipment determines a duration range to which the time interval belongs, and determines the first filtering parameter corresponding to the duration range according to the first corresponding relation.
The method according to claim 24 or 25, wherein the first indication information comprises: an upper boundary value of the time length range and/or a lower boundary value of the time length range.
The method of claim 26, wherein the configuration information comprises information indicating a plurality of duration ranges and a plurality of filter parameters, and wherein the plurality of duration ranges and the plurality of filter parameters have a corresponding relationship.
The method according to any one of claims 20 to 27, wherein the first filtering parameter comprises: filter factors and/or filter coefficients.
A method of communication, comprising:

the method comprises the steps that a second terminal device sends data of a first unicast connection for the Lth time by using first sending power at the first time, wherein the first unicast connection is established between the second terminal device and a first terminal device;

the second terminal device determines a time interval between a second time and the first time, wherein the second time is a time when the second terminal device prepares to send data of the first unicast connection for the L +1 th time;

and the second terminal equipment determines the power used by the second terminal equipment for transmitting the data of the first unicast connection at the L +1 th time according to the time interval and the preset duration.
The method of claim 29, wherein the determining, by the second terminal device, the power used by the second terminal device to send the data of the first unicast connection L +1 th time according to the time interval and a preset duration comprises:

under the condition that the time interval exceeds a preset time length, the second terminal device determines that the power used by the second terminal device for transmitting the data of the first unicast connection at the L +1 th time is the transmitting power for transmitting the data of the first unicast connection at the first time; alternatively, the first and second electrodes may be,

and under the condition that the time interval does not exceed the preset time length, the second terminal equipment determines that the power used by the second terminal equipment for sending the data of the first unicast connection at the L +1 th time is the transmitting power for sending the data of the first unicast connection at the L th time.
The method of claim 29 or 30, further comprising:

the second terminal equipment starts a first timer when sending the data of the first unicast connection for the L time;

wherein the second terminal device determining a time interval between a second time and the first time comprises: and the second terminal equipment acquires the value of the first timer at the second time, wherein the value of the first timer is the time interval.
The method of claim 31, wherein when the second terminal device transmits the data of the first unicast connection L +1 times, the method further comprises:

and the second terminal equipment restarts the first timer.
The method of claim 31 or 32, further comprising:

the second terminal device maintains the first timer for the first unicast connection.
A method of communication, comprising:

the method comprises the steps that a second terminal device sends data of a first unicast connection for the Lth time by using first sending power, wherein the first unicast connection is established between the second terminal device and a first terminal device;

and the second terminal equipment determines the power used by the second terminal equipment for transmitting the data of the first unicast connection at the L +1 th time according to the state of a first timer when the second terminal equipment transmits the data of the first unicast connection at the L +1 th time, wherein the second time is the time for the second terminal equipment to prepare for transmitting the data of the first unicast connection at the L +1 th time.
The method of claim 34, further comprising:

the second terminal equipment starts a first timer when sending the data of the first unicast connection for the Lth time by using the first transmission power;

the second terminal device determines, according to a state of a first timer when transmitting the data of the first unicast connection for the L +1 th time, a power used by the second terminal device to transmit the data of the first unicast connection for the L +1 th time, and includes:

when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time, if the first timer is overtime, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the transmission power for sending the data of the first unicast connection for the first time;

when the second terminal device prepares to send the data of the first unicast connection for the L +1 th time, if the first timer is not overtime, the second terminal device determines that the power used by the second terminal device to send the data of the first unicast connection for the L +1 th time is the first transmission power.
The method according to claim 34 or 35, wherein the second terminal device, when transmitting the data of the first unicast connection for the L +1 th time, if the first timer times out, the method further comprises: restarting the first timer.
The method of any one of claims 34 to 36, further comprising:

the second terminal device maintains the first timer for the first unicast connection.
The method of any one of claims 34 to 37, further comprising:

and the second terminal equipment receives third information, wherein the third information comprises information for configuring the first timer.
The method of claim 38, wherein the third information comprises an identification of the first unicast connection and a duration of the first timer.
An apparatus for performing the method of any one of claims 1 to 9, or for performing the method of any one of claims 10 to 19, or for performing the method of any one of claims 20 to 28, or for performing the method of any one of claims 29 to 33, or for performing the method of any one of claims 34 to 39.
An apparatus, comprising: a processor coupled with a memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of any of claims 1 to 9, or cause the apparatus to perform the method of any of claims 10 to 19, or cause the apparatus to perform the method of any of claims 20 to 28, or cause the apparatus to perform the method of any of claims 29 to 33, or cause the apparatus to perform the method of any of claims 34 to 39.
A storage medium having stored thereon a computer program or instructions which, when executed, cause a computer to perform the method of any of claims 1 to 9, or cause a computer to perform the method of any of claims 10 to 19, or cause a computer to perform the method of any of claims 20 to 28, or cause a computer to perform the method of any of claims 29 to 33, or cause a computer to perform the method of any of claims 34 to 39.