WO2019024121A1 - Monitoring method and terminal device - Google Patents

Abstract

A monitoring method and a terminal device are provided. The method is applied to a terminal device. A data replication function of a PDCP layer of the terminal device is in an activated state. The PDCP layer corresponds to at least one radio link control (RLC) protocol entity, and the at least one RLC entity corresponds to at least one physical layer carrier. A first carrier comprises one or more side-link processes, and a first side-link process of the one or more side-link processes carries a first entity. The method comprises: the terminal device switching an RLC entity carried by the side-link process from the first entity to a second entity, the at least one RLC entity comprising the second entity. In embodiments of the present invention, when a data replication function of a PDCP layer of a terminal device is in an activated state, an RLC entity carried by a first side-link process can be switched, which can effectively improve user experience.

Description

Method and terminal device for listening Technical field

Embodiments of the present invention relate to the field of communications, and more particularly, to a method and terminal device for listening.

Background technique

The vehicle networking system is a sidelink (SL) transmission technology based on Long Term Evaluation Vehicle to Vehicle (LTE D2D). Compared with the traditional LTE system, communication data is received or transmitted through the base station. Different ways, the vehicle networking system adopts the method of direct communication from the terminal to the terminal, and therefore has higher spectral efficiency and lower transmission delay.

Standardized Vehicles to Everything (V2X) in the 3rd Generation Partnership Project (3GPP) Rel-14, defining two transmission modes: Mode 3 and Mode 4 . Specifically, in mode 3, as shown in FIG. 1, transmission resources of the in-vehicle terminal (vehicle terminal 121 and in-vehicle terminal 122) are allocated by the base station 110, and the in-vehicle terminal is on the side line according to the resource allocated by the base station 110. The data is transmitted; the base station 110 may allocate a single transmission resource to the terminal, or may allocate a semi-static transmission resource to the terminal. In mode 4, as shown in FIG. 2, the in-vehicle terminal (vehicle terminal 210 and in-vehicle terminal 220) adopts a transmission mode of sensing and reservation. Specifically, the in-vehicle terminal acquires a set of available transmission resources in a resource pool by means of interception, and the terminal randomly selects one resource from the set to transmit data.

However, in the mode 4, the terminal device only considers a single carrier scenario, resulting in poor reliability of data transmission and reducing the user experience.

Summary of the invention

A method and a terminal device for listening are provided. By combining a multi-carrier scenario, the reliability of data transmission can be effectively improved, thereby improving the user experience.

In a first aspect, a method for listening is provided, which is applied to a terminal device, where a data replication function of a PDCP layer of a packet data convergence protocol of the terminal device is in an active state, and the PDCP layer and at least one radio link control Corresponding to the protocol RLC entity, the at least one RLC entity corresponds to at least one physical layer carrier, and the first carrier of the at least one physical layer carrier includes at least one a first side-link process, the first side-link process in the at least one side-link process carries a first entity, and the at least one RLC entity includes the first entity;

The method includes:

The terminal device switches the RLC entity carried by the first side-link process from the first entity to a second entity, and the at least one RLC entity includes the second entity.

In the embodiment of the present invention, when the data replication of the PDCP layer is in an active state, the terminal device is mapped to different physical layer carriers by using different RLC entities, which can effectively improve the reliability of data transmission, and can implement the first side line. The switching of the RLC entity carried by the link process can effectively improve the user experience.

In some possible implementations, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:

When the resource is reselected, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity.

In some possible implementations, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:

When the terminal device is in the resource reselection, if the second side-link process in the at least one side-link link does not carry the first entity, the RLC entity carried by the first side-link process is used. Switching from the first entity to the second entity.

Therefore, in the process of switching the RLC entity carried by the uplink process, the first side-link process and the second side-link process can be prevented from carrying different RLC entities at the same time.

In some possible implementations, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:

When the terminal device is in the resource reselection, if the side link process other than the first side link process in the at least one side link does not carry the first entity, The RLC entity carried by the first side downlink process is handed over by the first entity to the second entity.

Therefore, each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.

In some possible implementations, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:

When the terminal device is in resource reselection, if the second side chain in the at least one side link The path process carries the first entity, preventing the first side-link process from carrying the first entity and the second entity; until the second side-link process does not carry the first entity The first side-link process is allowed to carry the second entity.

Therefore, in the process of switching the RLC entity carried by the uplink process, the first side-link process and the second side-link process can be prevented from carrying different RLC entities at the same time.

In some possible implementations, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including:

When the terminal device is in the resource reselection, if the plurality of side-link processes other than the first side-link process in the at least one side-link link carry the first entity, the The first side-link process carries the first entity and the second entity; until each of the plurality of side-link processes does not carry the first entity, The first side-link process is allowed to carry the second entity.

Therefore, each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.

In a second aspect, a terminal device is provided, where a data replication function of a packet data convergence protocol PDCP layer is in an active state, and the PDCP layer corresponds to at least one radio link control protocol RLC entity, the at least one The RLC entity corresponds to at least one physical layer carrier, and the first carrier of the at least one physical layer carrier includes at least one side-link process, and the first side-link process in the at least one side-link process carries a first entity, the at least one RLC entity comprising the first entity;

The terminal device includes:

And a switching unit, configured to: switch, by the terminal device, the RLC entity carried by the first side-link process by the first entity to a second entity, where the at least one RLC entity includes the second entity.

In a third aspect, a terminal device is provided, where a data replication function of a packet data convergence protocol PDCP layer is in an active state, and the PDCP layer corresponds to at least one radio link control protocol RLC entity, the at least one The RLC entity corresponds to at least one physical layer carrier, and the first carrier of the at least one physical layer carrier includes at least one side-link process, and the first side-link process in the at least one side-link process carries a first entity, the at least one RLC entity comprising the first entity;

The terminal device includes:

And a processor, configured by the terminal device to switch, by the first entity, an RLC entity that is carried by the first side-link process to a second entity, where the at least one RLC entity includes the second entity.

In a fourth aspect, a computer readable medium is provided for storing a computer program comprising instructions for performing the method embodiment of the first aspect described above.

A fifth aspect provides a computer chip, including: an input interface, an output interface, at least one processor, and a memory, wherein the processor is configured to execute code in the memory, when the code is executed, the processing The various processes performed by the terminal device in the method for listening in the car networking system in the above first aspect and various implementations may be implemented.

In a sixth aspect, a communication system is provided, comprising the plurality of said terminal devices.

DRAWINGS

1 is a schematic block diagram of a transmission mode of an embodiment of the present invention.

2 is a schematic block diagram of another transmission mode of an embodiment of the present invention.

FIG. 3 is a schematic flowchart of a method for listening to a resource pool according to an embodiment of the present invention.

FIG. 4 is a schematic flowchart of a method for data transmission in a carrier aggregation scenario according to an embodiment of the present invention.

FIG. 5 is a diagram showing an example of a scenario of a method for listening according to an embodiment of the present invention.

FIG. 6 is a schematic block diagram of a terminal device according to an embodiment of the present invention.

FIG. 7 is a schematic block diagram of another terminal device according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be described below with reference to the accompanying drawings.

The embodiments of the present invention can be applied to any communication framework of a terminal device to a terminal device. For example, Vehicle to Vehicle (V2V), Vehicle to Everything (V2X), Device to Device (D2D), and the like. That is to say, the system frame of the vehicle-mounted terminal to the vehicle-mounted terminal shown in FIG. 1 or FIG. 2 is only an example of the embodiment of the present invention, and the embodiment of the present invention is not limited thereto.

The terminal device in the embodiment of the present invention may be any device or device configured with a physical layer and a media access control layer, and the terminal device may also be referred to as an access terminal. For example, user equipment (User Equipment, UE), subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user equipment. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless A communication-enabled handheld device, computing device, or other linear processing device connected to a wireless modem, an in-vehicle device, a wearable device, and the like. The embodiment of the present invention is described by taking an in-vehicle terminal as an example, but is not limited thereto.

FIG. 3 is a schematic flowchart of a method for a terminal device to listen to a resource pool according to an embodiment of the present invention.

As shown in FIG. 3, it is assumed that each carrier corresponds to at least one sidelink process. For example, in 3GPP rel-14, one carrier corresponds to two side-link processes. When a new data packet arrives at time n, the terminal device needs to perform resource selection, and the terminal selects resources in the [n+T1, n+T2] interval according to the interception result in the past period of time (for example, 1s). . Specifically, the terminal device may select a resource in the selection window by detecting information about the channel quality corresponding to the resource in the listening window.

Where T1≤4ms; 20ms≤T2≤100ms.

In addition, the channel quality information corresponding to the resource may be a channel quality (eg, received power or reception quality) of a physical side shared channel (PSSCH) corresponding to a physical side control channel (PSCCH). . The terminal device may further perform information about a channel quality corresponding to each resource in the transmission resource set by performing a Receive Signal Strength Indicator (RSSI) detection on the resource in the transmission resource set.

It should be noted that the range of values of T1 and T2 is only an example and the present embodiment should not be limited.

Because the services in the car networking system have periodic characteristics. Therefore, in the embodiment of the present invention, the terminal device may adopt a semi-static transmission manner.

Specifically, when the terminal device selects a resource for transmission, the terminal device continuously uses the resource to reserve Cresel times, and each time the data is transmitted, Cresel is decremented by 1. When Cresel is reduced to 0, the terminal randomly generates one [ A random number between 0,1], and compared with the parameter (probResourceKeep), if it is greater than the parameter, the terminal performs resource reselection. If it is smaller than the parameter, the terminal continues to use the resource and resets Cresel.

In other words, the terminal device in the embodiment of the present invention carries the information for reserving the next transmission resource in the control information of the current transmission, so that other terminal devices can detect the terminal device by detecting The control information determines whether the resource is reserved and used by the terminal device, so as to reduce resource conflicts. In other words, after selecting a transmission resource, the terminal device in the embodiment of the present invention can reduce the probability of resource reselection and resource conflict by continuously using the resource in multiple transmission periods.

It should also be understood that when the terminal device selects a resource in the selection window, the resource may be directly selected, or a resource of a certain TTI may be selected among multiple TTI resources. The invention is not specifically limited.

For example, the terminal device may select at least one resource in the selection window according to channel quality information of each resource. For example, the terminal device may select the resource of the first TTI from the resources of the plurality of TTIs according to the channel quality information corresponding to the TTI resources in the plurality of TTIs in the selection window. The following describes an example in which a terminal device selects a resource of a certain TTI among a plurality of TTI resources.

Specifically, it is assumed that the transmission resource set includes a short transmission time length (short TTI) resource and a long transmission time length (long TTI) resource. The terminal device selects the at least one resource by selecting a type of transmission time length, for example, the terminal device selects a resource of a short TTI or a resource of a long TTI as the at least one resource.

More specifically, the terminal device may first obtain the channel quality information corresponding to the resource of the short TTI and the channel quality information corresponding to the resource of the long TTI; and then, according to the channel quality information corresponding to the resource of the short TTI, and the information of the long TTI Information about the channel quality corresponding to the resource, and selecting a resource of the TTI in the selection window. It can be understood that, in the embodiment of the present invention, the information about the channel quality corresponding to the resource of the TTI may be one piece of information (for example, a threshold value); that is, the quality of the resource of the corresponding TTI can be reflected by using the information.

For example, if the resource of the short TTI corresponds to the first threshold, and the resource of the long TTI corresponds to the second threshold, the terminal device may select a resource of the TTI by comparing the first threshold with the second threshold.

It should be understood that, in the embodiment of the present invention, the terminal device may perform resource selection in the physical layer, may also select resources in the media access control layer, and may perform resource selection in both the physical layer and the media access control layer, and the implementation of the present invention is implemented. The example is not specifically limited.

Based on the New Radio NR technology, in the Carrier Aggregation (CA) scenario, the embodiment of the present invention provides a method for transmitting data, which can utilize a Packet Data Convergence Protocol (PDCP). Layer copy data function for data duplication transfer. The data transmission method of the embodiment of the invention can effectively improve the reliability of data transmission.

A method for transmitting the replicated data in the CA scenario in the embodiment of the present invention is briefly described below with reference to FIG.

FIG. 4 is a schematic flowchart of a method for transmitting data of a PDCP layer according to an embodiment of the present invention.

As shown in FIG. 4, data generated by the PDCP layer (replicated data of PDUs and PDUs) are respectively transmitted to two different RLC entities (RLC entity a and RLC entity b), and the two different RLC entities are intervened through the same media. A Control (Media Access Control, MAC) layer entity (MAC entity) maps to different physical layer carriers (a first carrier and a second carrier). It can be understood that, in the embodiment of the present invention, data generated by the PDCP layer (replicated data of PDUs and PDUs) are respectively mapped to different physical layer carriers by two different RLC entities, thereby achieving the purpose of frequency diversity gain, and further Can improve the reliability of data transmission.

Specifically, each sub-layer is sent to a specified layer of the receiving end according to the data of the protocol data unit. The data that is not processed into each sub-layer is called a service data unit (SDU), and the data that is formed into a specific format after being processed by the sub-layer is called a protocol data unit (PDU). That is to say, the SDU is an information element transmitted from a higher layer protocol to a lower layer protocol, that is, the original data of the SDU is a PDU of the upper layer of the protocol. In other words, the PDU formed by this layer is the SDU of the next layer.

For example, each logical channel of each terminal device has one RLC entity (RLC entity), data received by the RLC entity from the PDCP layer, or data sent to the PDCP layer may be referred to as an RLC SDU (or PDCP PDU). The data received by the RLC entity from the MAC layer, or the data sent to the MAC layer may be referred to as an RLC PDU (or MAC SDU).

It should be understood that, in the embodiment of the present invention, the RLC layer is located between the PDCP layer and the MAC layer, and the RLC layer can communicate with the PDCP layer through a Service Access Point (SAP), and communicate with the MAC layer through a logical channel. . However, embodiments of the invention are not limited thereto.

In the embodiment of the present invention, when the data replication of the PDCP layer is in an active state, the PDUs of the PDCP layer (ie, PDCP PDUs) and the PDCP PDUs are mapped to different physical layer carriers through different RLC entities, which can effectively improve. The reliability of data transmission.

It can be found that although the terminal device utilizes the copy data function of the PDCP layer to perform data duplication transmission, the reliability of data transmission can be effectively improved. However, since the 3GPP Rel-14 only considers a single carrier scenario, if the terminal device adopts the data transmission method of the embodiment of the present invention, that is, when the data replication function of the PDCP layer of the terminal device is activated, each side link may be performed. Carrying different RLC entities, that is, resource scheduling of the terminal device Consider a multi-carrier scenario. Specifically, the terminal device needs to consider an RLC entity carried by each carrier of the multiple carriers. More specifically, the terminal device needs to consider the RLC entity carried by each side-link process in the carrier.

For example, when the terminal device adopts the resource scheduling mode as described in FIG. 2, when the data replication function of the PDCP layer above is activated, the terminal device needs to consider the logical channel identifier (LCID) to the side-link process. Mapping relationship.

Therefore, the embodiment of the present invention further provides a method for the terminal device to listen to the resource pool when the data replication function of the PDCP layer of the terminal device is activated.

Optionally, the data replication function of the PDCP layer of the terminal device is in an active state, the PDCP layer is corresponding to at least one radio link control protocol (RLC) entity, the at least one RLC entity corresponding to the at least one physical layer carrier, the at least one physical layer The first carrier in the carrier includes at least one side-link process, the first side-link process in the at least one side-link process carries the first entity, and the at least one RLC entity includes the first entity; The terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, and the at least one RLC entity includes the second entity.

Specifically, if the terminal device currently wants to switch the RLC entity carried by the side-line process on the first carrier, the terminal device may switch the RLC entity carried by the first side-link process from the first entity to the first entity. Two entities.

For example, the terminal device directly switches the RLC entity carried by the first side-link process from the first entity to the second entity directly.

For another example, after the first side-link process meets a certain condition, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity.

FIG. 5 is an exemplary block diagram of a scenario of a method for listening according to an embodiment of the present invention.

The method for listening in the embodiment of the present invention is described below by taking the scenario shown in FIG. 5 as an example.

Specifically, as shown in FIG. 5, it is assumed that the first side-link process of the terminal device and the second side-link process of the at least one side-link process are used for the bearer first entity, If the terminal device currently wishes to switch the RLC entity carried by the first side-link process and/or the second side-link process from the first entity to the second entity. It should be understood that, in the embodiment of the present invention, only the first side-link process and the second side-link process are taken as an example for description. However, embodiments of the invention are not limited thereto.

It can be understood that, in the scenario of the embodiment of the present invention, if the user currently wants the terminal device to switch the RLC entity carried by the first side-link process from the first entity to the second entity, the terminal device needs to perform handover. deal with.

After the terminal device receives a user-triggered request to switch the RLC entity carried by the first side-link process from the first entity to the second entity (for example, by a user operation); the terminal device responds to the first The RLC entity carried by the one-way line process is switched by the first entity to the request of the second entity, and the RLC entity carried by the first side-link process is switched from the first entity to the second entity.

Optionally, the terminal device may directly switch the RLC entity carried by the first side-link process from the first entity to the second entity. However, in the embodiment of the present invention, if the terminal device responds to the request that the RLC entity carried by the first side-link process is switched from the first entity to the second entity, the first side-link process is directly The bearer RLC entity is switched from the first entity to the second entity, which is highly likely to increase the frequency of resource reselection and reduce data transmission efficiency.

Specifically, it is assumed that the amount of data that the first side-link process can carry is m, and the amount of data to be transmitted on the logical channel where the second entity is located is n, and if n is greater than m, the terminal device directly When the RLC entity carried by the one-way line process is switched from the first entity to the second entity, the first side-link process is insufficient to carry the data to be transmitted, and the terminal device may be restarted. Perform resource re-selection.

In order to reduce the frequency of resource reselection by the terminal device, further, in the embodiment of the present invention, a method for listening is also provided. Specifically, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity according to the time when the first side-link process acquires the resource re-selection opportunity.

Optionally, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity when the resource is reselected.

Specifically, the terminal device determines the first moment before the RLC entity carried by the first side-link process is switched from the first entity to the second entity, where the first moment is that the first side-link process is A time when the resource reselection opportunity is acquired after the request time, where the request time is the time when the terminal device receives the request; then, the terminal device at the first time, the RLC entity carried by the first sidelink process is The first entity switches to the second entity.

It should be noted that, in the embodiment of the present invention, the first carrier corresponds to at least one side-link process, and the at least one side-link process is independent of each other. Specifically, the at least one side chain Each side-line process in the path has its own resource reselection timer, Cresel.

That is to say, in the embodiment of the present invention, each of the at least one side-link process can switch the RLC entity carried by each of the time-receiving opportunities.

As a result, some of the at least one side-link process in the at least one side-link process may be carrying different RLC entities at the same time.

Further, in order to solve the above problem, in the embodiment of the present invention, a method for intercepting, when a resource reselection opportunity is acquired by each side-link process in multiple side-by-side processes, is further provided. Determining when to switch the RLC entity carried by the first side-link process from the first entity to the second entity.

Optionally, it is assumed that the second side-link process in the at least one side-link link carries the first entity, and the first side-link process and the second side-link process are different. The time at which the terminal device in the embodiment of the present invention can obtain the resource reselection opportunity according to the first side-link process (the first time) and the time at which the second side-link process obtains the resource re-election opportunity (the second time), The RLC entity carried by the first side-link process is switched from the first entity to the second entity.

For example, the terminal device determines the first moment and the second moment before the RLC entity carried by the first side-link process is switched from the first entity to the second entity, where the first moment is the first sidelink a time when the process acquires a resource reselection opportunity after the request time, where the second time is a time when the second side link process acquires a resource reselection opportunity after the request time, where the request time is that the terminal device receives the request The terminal device determines the third time according to the first time and the second time; the terminal device switches, by the first entity, the RLC entity carried by the first side-link process by the first entity To the second entity.

As an embodiment, optionally, when the terminal device is in resource reselection, if the second side-link process in the at least one side-link link carries the first entity, blocking the first side-link The process carries the first entity and the second entity; the first side-link process is allowed to carry the second entity until the second side-link process does not carry the first entity.

Further, when the terminal device is in the resource reselection, if the plurality of side-link processes other than the first side-link process in the at least one side-link link carry the first entity, blocking the first The one-side line process carries the first entity and the second entity; the first side line is allowed until each of the plurality of side-link processes does not carry the first entity The link process carries the The second entity.

Specifically, the request moment is a time when the terminal device receives the request, and the first time is a time when the first sidelink process acquires a resource reselection opportunity after the request time, where the second time is The second side-link process acquires the time of the resource re-selection opportunity after the request time; if the first time is before the second time, the terminal device determines the third time, the third time is the first side The time at which the downlink process acquires the resource reselection opportunity after the second time, and the first side downlink bearer prohibits carrying the first entity between the first time and the second time.

More specifically, if the first moment is before the second moment, the terminal device may: after the moment that the first sidelink process acquires the resource reselection opportunity after the second moment, the first side line The RLC entity carried by the link process is switched by the first entity to the second entity, and the first side-link bearer prohibits carrying the first entity between the first moment and the second moment. Therefore, in the process of switching the RLC entity carried by the uplink process, the first side-link process and the second side-link process can be prevented from carrying different RLC entities at the same time.

In addition, for the second side-link process, the terminal device may switch the RLC entity carried by the second side-link process from the first entity to the second entity at the second moment.

Further, in the embodiment of the present invention, each sidewalk process except the second side link in the at least one side-link process acquires a resource reselection opportunity after the request time Both are before the second moment. Therefore, each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.

In another embodiment, optionally, when the terminal device is in resource reselection, if the second sidewalk process in the at least one side link does not carry the first entity, the first side chain is The RLC entity carried by the path process is switched by the first entity to the second entity.

Further, when the terminal device is in the resource reselection, if the side link process other than the first side link process in the at least one side link does not carry the first entity, the first The RLC entity carried by the side-line process is switched by the first entity to the second entity.

Specifically, the request moment is a time when the terminal device receives the request, and the first time is a time when the first sidelink process acquires a resource reselection opportunity after the request time, where the second time is The second side downlink process acquires the time of the resource reselection opportunity after the request time; if the second time is before the first time, the terminal device determines the first time as the third time. Specifically, if the second moment is before the first moment, the terminal device may be at the first At the moment, the RLC entity carried by the first side-link process is switched from the first entity to the second entity.

In addition, for the second side-link process, the terminal device determines, at the second time, the time at which the second side-link process acquires the resource re-election opportunity as the fourth time; the terminal device is in the fourth At the moment, the RLC entity carried by the second side-link process is switched from the first entity to the second entity, and the second side-link bearer is prohibited from being carried between the second moment and the first moment. The second entity. Therefore, the first side-link process and the second side-link process can avoid the first side-link process and the second side-link process respectively during the process of switching the RLC entity that is carried Hosted with different RLC entities.

Further, in the embodiment of the present invention, each of the at least one side-link process except the first side-link link acquires a resource reselection opportunity after the request time Both are before the first moment. Therefore, each of the at least one side-link process in the process of switching the bearer RLC entity can ensure that the at least one side-link process carries the same RLC at the same time. entity.

FIG. 6 is a schematic block diagram of a terminal device 300 according to an embodiment of the present invention.

Specifically, as shown in FIG. 6, the data replication function of the PDCP layer of the packet data convergence protocol of the terminal device is in an active state, the PDCP layer is corresponding to at least one radio link control protocol RLC entity, and the at least one RLC entity corresponds to at least one a physical layer carrier, the first carrier of the at least one physical layer carrier includes at least one side-link process, and the first side-link process in the at least one side-link process carries the first entity, where the at least An RLC entity includes the first entity;

The terminal device includes:

The switching unit 310 is configured to switch the RLC entity carried by the first side-link process from the first entity to the second entity, where the at least one RLC entity includes the second entity.

Optionally, the switching unit 310 is specifically configured to:

When the resource is reselected, the RLC entity carried by the first side-link process is switched from the first entity to the second entity.

Optionally, the switching unit 310 is specifically configured to:

In the resource reselection, if the second side-link process in the at least one side-link link does not carry the first entity, the RLC entity carried by the first side-link process is switched from the first entity to the first entity. The second entity.

Optionally, the switching unit 310 is more specifically configured to:

When the resource is reselected, if the first side entity of the at least one side link except the first side-link process does not carry the first entity, the first side-link process is carried. The RLC entity is switched by the first entity to the second entity.

Optionally, the switching unit 310 is specifically configured to:

If the second side-link process in the at least one side-link link carries the first entity, the first side-link process is prevented from carrying the first entity and the second entity; The first side-link process is allowed to carry the second entity until the second side-link process does not carry the first entity.

Optionally, the switching unit 310 is more specifically configured to:

When the resource reselection, if the plurality of side-link processes in the at least one side-link link carry the first entity, preventing the first side-link process from carrying the first entity and the second entity; The first side-link process is allowed to carry the second entity until each of the plurality of side-link processes does not carry the first entity.

It should be noted that, in the embodiment of the present invention, the switching unit 310 may be implemented by a processor. As shown in FIG. 7, the terminal device 400 may include a processor 410, a transceiver 420, and a memory 430. The memory 430 can be used to store indication information, and can also be used to store code, instructions, and the like executed by the processor 410. The various components in the terminal device 400 are connected by a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to the data bus.

The terminal device 400 shown in FIG. 7 can implement various processes implemented by the terminal device in the foregoing method embodiments. To avoid repetition, details are not described herein again.

That is to say, the method embodiment in the embodiment of the present invention may be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the foregoing method embodiments may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software. The above processor may be a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or the like. Programming logic devices, transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like. The steps of the method disclosed in the embodiment of the present invention may be directly implemented as a hardware decoding processor, or The combination of hardware and software modules in the decoding processor is completed. The software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like. The storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.

It can be understood that, in the embodiments of the present invention, the memory may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory may be a read-only memory (ROM), a programmable read only memory (ROMM), an erasable programmable read only memory (erasable PROM, EPROM), or an electrical Erase programmable EPROM (EEPROM) or flash memory. The volatile memory can be a random access memory (RAM) that acts as an external cache. By way of example and 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 (synchronous DRAM). , SDRAM), double data rate synchronous DRAM (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronously connected dynamic random access memory (synch link DRAM) , SLDRAM) and direct memory bus random access memory (DR RAM). It should be noted that the memories of the systems and methods described herein are intended to comprise, without being limited to, these and any other suitable types of memory.

In the end, it is to be understood that the terminology of the embodiments of the invention and the claims

For example, the singular forms "a", "the", and "the"

For another example, the terms first type of cell group and second type of cell group may be employed in the embodiments of the present invention, but these types of cell groups should not be limited to these terms. These terms are only used to distinguish types of cell groups from one another.

For another example, depending on the context, the words "at time" as used herein may be interpreted as "if" or "if" or "when" or "response" Determine "or" in response to the test. Similarly, depending on the context, the phrase "if determined" or "if detected (conditions or events stated)" can be interpreted as "when determined" or "in response to determination" or "when detected (conditions stated or "Event" or "in response to a test (condition or event stated)".

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

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

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in the embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

If implemented in the form of a software functional unit and sold or used as a standalone product, it can be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention, or the part contributing to the prior art or the part of the technical solution, may be embodied in the form of a software product stored in a storage medium. The instructions include a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk.

The above is only a specific embodiment of the embodiments of the present invention, but the scope of protection of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily think of the technical scope disclosed in the embodiments of the present invention. Variations or substitutions are intended to be included within the scope of the embodiments of the invention. Therefore, the scope of protection of the embodiments of the present invention should be determined by the scope of protection of the claims.

Claims (12)

A method for intercepting in a vehicle networking system, characterized in that it is applied to a terminal device, wherein a data replication function of a PDCP layer of a packet data convergence protocol of the terminal device is in an active state, the PDCP layer and at least one wireless chain Corresponding to the RLC entity, the at least one RLC entity corresponds to at least one physical layer carrier, and the first carrier of the at least one physical layer carrier includes at least one side-link process, the at least one side-link process The first side downlink process carries a first entity, and the at least one RLC entity includes the first entity; The method includes: The terminal device switches the RLC entity carried by the first side-link process from the first entity to a second entity, and the at least one RLC entity includes the second entity. The method according to claim 1, wherein the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including: When the resource is reselected, the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity. The method according to claim 1 or 2, wherein the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including: When the terminal device is in the resource reselection, if the second side-link process in the at least one side-link link does not carry the first entity, the RLC entity carried by the first side-link process is used. Switching from the first entity to the second entity. The method according to claim 3, wherein the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including: When the terminal device is in the resource reselection, if the side link process other than the first side link process in the at least one side link does not carry the first entity, The RLC entity carried by the first side downlink process is handed over by the first entity to the second entity. The method according to claim 1 or 2, wherein the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including: The terminal device is configured to prevent the first side-link process from carrying the first entity, if the second side-link process in the at least one side-link link carries the first entity, when the resource is reselected An entity and the second entity; Allowing the first side line until the second sidewalk process does not carry the first entity The link process carries the second entity. The method according to claim 5, wherein the terminal device switches the RLC entity carried by the first side-link process from the first entity to the second entity, including: When the terminal device is in the resource reselection, if the plurality of side-link processes other than the first side-link process in the at least one side-link link carry the first entity, the The first side-link process carries the first entity and the second entity; The first side-link process is allowed to carry the second entity until each of the plurality of side-link processes does not carry the first entity. A terminal device, wherein a data replication function of a PDCP layer of a packet data convergence protocol of the terminal device is in an active state, the PDCP layer corresponding to at least one radio link control protocol RLC entity, the at least one RLC entity Corresponding to at least one physical layer carrier, the first carrier of the at least one physical layer carrier includes at least one side-link process, and the first one of the at least one side-link process carries the first An entity, the at least one RLC entity including the first entity; The terminal device includes: And a switching unit, configured to switch, by the first entity, an RLC entity that is carried by the first side-link process to a second entity, where the at least one RLC entity includes the second entity. The terminal device according to claim 7, wherein the switching unit is specifically configured to: When the resource is reselected, the RLC entity carried by the first side-link process is switched from the first entity to the second entity. The terminal device according to claim 7 or 8, wherein the switching unit is specifically configured to: When the resource selection is performed, if the second side-link process in the at least one side-link link does not carry the first entity, the RLC entity carried by the first side-link process is configured by the first An entity switches to the second entity. The terminal device according to claim 9, wherein the switching unit is more specifically used for: When the resource reselection, if the sidewalk process other than the first sidelink process in the at least one side link does not carry the first entity, the first side line is The RLC entity carried by the link process is handed over by the first entity to the second entity. The terminal device according to claim 7 or 8, wherein the switching unit is specifically configured to: In the case of resource reselection, if the second side-link process in the at least one side-link link carries the first entity, preventing the first side-link process from carrying the first entity and the Said second entity; The first side-link process is allowed to carry the second entity until the second side-link process does not carry the first entity. The terminal device according to claim 11, wherein the switching unit is more specifically used for: When the resource reselection, if the plurality of sidewalk processes in the at least one side link carry the first entity, preventing the first sidelink process from carrying the first entity and the Said second entity; The first side-link process is allowed to carry the second entity until each of the plurality of side-link processes does not carry the first entity.

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