WO2015139305A1

WO2015139305A1 - Method and device for data processing

Info

Publication number: WO2015139305A1
Application number: PCT/CN2014/073868
Authority: WO
Inventors: 马洁; 蔺波
Original assignee: 华为技术有限公司
Priority date: 2014-03-21
Filing date: 2014-03-21
Publication date: 2015-09-24
Also published as: CN105265012A; CN110234174A; CN105265012B

Abstract

Disclosed are a method and device for data processing, applicable in any one cellular direct communication terminal in a D2D user group. Only when reception of user plane protocol layer to-be-processed data stream is incomplete, is an entity of a current user plane protocol layer corresponding to a service type of the to-be processed data stream reserved, when reception of the user plane protocol layer to-be-processed data stream is complete, then the entity of the current user plane protocol layer corresponding to the service type of the to-be-processed data stream is released. This prevents an excessive number of entities of a current user plane protocol layer to be stored in a memory of a cellular direct communication terminal, thus improving the processing capabilities of the cellular direct communication terminal, and ultimately ensuring accurate implementation of a D2D service.

Description

Data processing method and device

Technical field

The present invention relates to the field of network communication technologies, and in particular, to a data processing method and apparatus. Background technique

The Long Term Evolution (LTE) system is a long-term evolution of the universal mobile communication system dominated by 3GPP (3rd Generation Partnership Project). The network architecture includes an evolved packet core network composed of a mobility management entity and a service gateway, and an E-UTRAN (Evolved Universal Terrestrial Radio Access Network) composed of an eNB (evolved Node B). Access network) and UE (User Equipment) are three parts.

In the LTE system, the air interface side user plane protocol stack between the eNB and the UE includes: a PDCP (Packet Data Convergence Protocol) layer, an RLC (Radio Link Control) layer, MAC (Medium Access Control) layer, PHY (Radio Resource Control) layer. For example, after receiving the data packet forwarded by the eNB, the UE decapsulates the data packet in the PHY layer, the MAC layer, the RLC layer, and the PDCP layer in order to correctly submit the decapsulated service data to the application layer. . Of course, when the UE sends a data packet, the order in which the data packet is encapsulated is just reversed.

In the RLC layer, different RLC entities need to be established for data packets of different service types, that is, one RLC entity is responsible for processing data packets of one service type, and therefore, the number of RLC entities and the service type supported by the UE. The number is the same. Similarly, at the PDCP layer, it is also necessary to establish a PDCP entity with the same number of service types supported by the UE, so as to implement the PDCP layer to process data packets of various service types.

Device-to-device (D2D) is a short-distance communication service. Direct communication between devices can realize direct transmission of data between UEs without forwarding through the base station. Therefore, D2D services can be improved. Transfer rate, reduced transfer time, and reduced energy consumption. For some near-field communication or public safety events, D2D services are more efficient.

When a UE having D2D service capability performs direct communication using resources of the LTE system, the UE It can also be called a cellular pass-through terminal. Multiple cellular pass-through terminals can form a D2D user group. Direct communication can be implemented between each cellular through terminal in a D2D user group. In addition, in addition to enabling straight-through communication in D2D subscriber groups, cellular pass-through terminals are also capable of traditional cellular communications.

In the LTE system, one UE can only communicate with one base station at the same time. For uplink communication, the UE is the transmitting end of one base station, and for downlink communication, the UE is the receiving end of one base station. . The cellular through terminal in the D2D user group can serve as a sending end to send data packets to other cellular through terminals in the D2D user group, or as a receiving end to receive data packets sent by other cellular through terminals in the D2D user group. Therefore, in the D2D user group, for a receiving end, it is sometimes necessary to establish an RLC entity and a PDCP entity corresponding to each sender, so that the data packets sent by each sender can be processed. After the receiving end receives the data packets sent by all other cellular through terminals in the D2D user group in which it is located, the number of internal RLC entities and PDCP entities is the product of the number of transmitting ends and the number of services supported by each transmitting end. . If the number of senders is too large, the receiver needs to establish a large number of RLC entities and PDCP entities. This situation will directly affect the processing capability of the receiver. Summary of the invention

In view of this, an embodiment of the present invention provides a data processing method and apparatus, which are applied to any one of the D2D user groups, and are retained only when the data stream to be processed by the current user plane protocol layer is not received. An entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, and when receiving the data stream to be processed by the current user plane protocol layer, translating the service with the data stream to be processed The entity of the current user plane protocol layer corresponding to the type solves the problem that the entity of the current user plane protocol layer is stored in the cellular through terminal, thereby affecting the processing capability of the cellular through terminal. The specific plan is as follows:

According to the first possible implementation manner of the first aspect of the present application, the application provides a data processing method, which is applied to any one of the inter-device direct communication D2D groups, the method includes:

Receiving a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by the upper layer of the current user plane protocol layer; Determining whether the data stream to be processed is received;

If the data stream to be processed is received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is released;

If the data stream to be processed is not received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is reserved.

With reference to the second possible implementation of the first aspect, the method further includes:

Determining whether a service data unit in the data stream to be processed is received within a preset time interval, and if a service data unit in the data stream to be processed is received within the preset time interval, The data stream to be processed is not received; if the service data unit in the data stream to be processed is not received within the preset time interval, the data stream to be processed is received.

With reference to the third possible implementation manner of any one of the first two implementation manners of the first aspect, the method further includes:

Notifying the message that the entity of the current user plane protocol layer has been translated to the upper layer of the current user plane protocol layer.

In conjunction with the fourth possible implementation of the second or third implementation of the first aspect, the method further includes:

And receiving the group announcement information of the group head broadcast of the D2D user group where the cellular through terminal is located, where the group announcement information includes the preset time interval.

With reference to the fifth implementation manner of the fourth implementation manner of the first aspect, the method further includes: when the group header is any one of the D2D user groups, and the group header is capable of being connected to the base station When the communication is performed, the preset time interval is that the group header is acquired from the base station by using radio resource control RRC signaling.

With reference to the sixth implementation manner of the fourth implementation manner of the first aspect, the method further includes: when the group header is any one of the D2D user groups, and the group header cannot be When the base station performs communication, the preset time interval is obtained by the group header from its internal configuration information.

With reference to the seventh implementation manner of the fourth implementation manner of the foregoing aspect, the method further includes: when the group header is a base station, and the D2D user group is within a network coverage of the base station, The preset time interval is that the group header is obtained from a network element of an evolved packet core network. With reference to the eighth implementation manner of the fourth implementation manner of the first aspect, the method further includes: the group announcement information further includes a mapping relationship between the service type and the logical channel identifier; Before the data stream to be processed by the protocol layer, the method further includes: establishing an entity group of the current user plane protocol layer, where the entities in the entity group have a one-to-one correspondence with the logical channel identifier.

With reference to the ninth implementation manner of the eighth implementation manner of the first aspect, the method further includes: acquiring a service type of the data stream to be processed;

Determining, according to the mapping relationship between the service type and the logical channel identifier, a logical channel identifier corresponding to the service type of the to-be-processed data stream, and serving as a logical channel identifier of the to-be-processed data stream;

And selecting, from the entity group of the current user plane protocol layer, an entity corresponding to the logical channel identifier of the to-be-processed data stream, and processing the current user plane protocol layer corresponding to the service type of the to-be-processed data stream entity.

A tenth implementation manner of implementing the implementation of any one of the nine implementation manners of the first aspect, the method further includes:

The current user plane protocol layer is an RLC layer or a PDCP layer.

According to a first possible implementation manner of the second aspect of the present application, the application provides a data processing apparatus, which is applied to any one of the inter-device direct communication D2D user groups, the device includes:

a receiving unit, configured to receive a data stream to be processed by a current user plane protocol layer, where the to-be-processed data stream is transmitted by an upper layer of a current user plane protocol layer;

a determining unit, configured to determine whether the receiving unit receives the data stream to be processed, and a decoding unit, configured to: when the determining unit determines that the data stream to be processed is received, release and wait The entity of the current user plane protocol layer corresponding to the service type of the processed data stream;

a retaining unit, configured to: when the determining unit determines that the to-be-processed data stream is not received, retain an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

In conjunction with the second possible implementation of the second aspect, the device further includes:

The determining unit is specifically configured to: Determining whether the receiving unit receives a service data unit in the to-be-processed data stream within a preset time interval, if a service in the to-be-processed data stream is received within the preset time interval a data unit, the data stream to be processed is not received; if the service data unit in the data stream to be processed is not received within the preset time interval, the data to be processed is indicated The stream is received.

In conjunction with the third possible implementation of any one of the first two implementations of the second aspect, the apparatus further includes:

a reporting unit, configured to: after the determining unit determines that the data stream to be processed is received, after the decoding unit releases the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, Notifying the message that the entity of the current user plane protocol layer has been translated to the upper layer of the current user plane protocol layer.

In conjunction with the fourth possible implementation of the second or third implementation of the second aspect, the apparatus further includes:

a group announcement information receiving unit, configured to receive, before the receiving unit receives the data stream to be processed by the current user plane protocol layer, the group announcement information of the group head broadcast of the D2D user group where the cellular through terminal is located, the group announcement The preset time interval is included in the information.

With reference to the fifth implementation manner of the fourth implementation manner of the second aspect, the device further includes: the group announcement information receiving unit is specifically configured to:

When the group header is any one of the D2D user groups, and the group header is capable of communicating with the base station, the preset time interval is that the group header is controlled by radio resource control RRC signaling. Obtained by the base station.

With reference to the sixth implementation manner of the fourth implementation manner of the second aspect, the device further includes: the group announcement information receiving unit is specifically configured to:

When the group header is any one of the D2D user groups, and the group header is not capable of communicating with the base station, the preset time interval is the internal configuration information of the group header from itself. Obtained.

With reference to the seventh implementation manner of the fourth implementation manner of the second aspect, the device further includes: the group announcement information receiving unit is specifically configured to:

When the group header is a base station, and the D2D user group is within the network coverage of the base station, The preset time interval is that the group header is obtained from a network element of an evolved packet core network. With reference to the eighth implementation manner of the fourth implementation manner of the second aspect, the device further includes: the group announcement information further includes a mapping relationship between the service type and the logical channel identifier, where the apparatus further includes:

An entity group establishing unit, configured to establish an entity group of the current user plane protocol layer, an entity in the entity group, and the logical channel identifier, before the receiving unit receives the data stream to be processed by the current user plane protocol layer --correspond.

With reference to the ninth implementation manner of the eighth implementation manner of the second aspect, the device further includes: a service type acquiring unit, configured to obtain, after the receiving unit receives the data stream to be processed by the current user plane protocol layer, The service type of the data stream to be processed;

a logical channel identifier determining unit, configured to determine, according to a mapping relationship between the service type and the logical channel identifier, a logical channel identifier corresponding to a service type of the data stream to be processed acquired by the service type acquiring unit, and as the to-be-processed Logical channel identification of the data stream;

An entity selecting unit, configured to select, from the entity group of the current user plane protocol layer, an entity corresponding to the logical channel identifier of the to-be-processed data stream determined by the logical channel identifier determining unit, and as the data to be processed The processing entity of the current user plane protocol layer corresponding to the traffic type of the stream.

In conjunction with the tenth implementation of the implementation of any one of the nine implementations of the second aspect, the apparatus further includes:

The current user plane protocol layer is an RLC layer or a PDCP layer.

According to the first possible implementation manner of the third aspect of the present application, the application provides a cellular through terminal, including the data described in any one of the ten possible implementation manners of the second aspect of the present application. Processing device. It can be seen from the above technical solution that the data processing method and device provided by the embodiments of the present invention are applied to any one of the D2D user groups, and only the data stream to be processed by the current user plane protocol layer is not received. And retaining the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, and when receiving the data stream to be processed by the current user plane protocol layer, the translation and the pending The entity of the current user plane protocol layer corresponding to the service type of the data stream can avoid storing too many entities of the current user plane protocol layer in the cellular through terminal, thereby improving The processing capability of the cellular pass-through terminal ultimately guarantees the accurate implementation of the D2D service. DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flowchart of Embodiment 1 of a data processing method according to the present application;

2 is a flowchart of Embodiment 2 of a data processing method according to the present application;

3 is a flowchart of Embodiment 3 of a data processing method of the present application;

4 is a flowchart of Embodiment 4 of a data processing method of the present application;

5 is a schematic structural diagram of Embodiment 1 of a data processing apparatus according to the present application;

6 is a schematic structural diagram of Embodiment 2 of a data processing apparatus according to the present application;

7 is a schematic structural diagram of Embodiment 3 of a data processing apparatus according to the present application;

8 is a schematic structural diagram of Embodiment 4 of a data processing apparatus according to the present application;

FIG. 9 is a schematic structural diagram of a communication device of the present application. detailed description

In order to make the object, the features and the advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The terms "first", "second", "third", "fourth", etc. (if present) in the specification and claims of the present invention and the above figures are used to distinguish similar objects without being used for Describe a specific order or order. It is to be understood that the data so used may be interchanged as appropriate, such that the embodiments of the invention described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "comprises" and "includes" or "includes" or "includes" or "includes" or "includes" or "includes," It is not necessary to be limited to those steps or units that are clearly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices. It can be seen from the background that in an LTE system, one UE can communicate with only one base station at the same time. For uplink communication, the UE is a transmitting end of a base station, and for downlink communication, the UE is The receiving end of a base station. The cellular through terminal in the D2D user group can serve as a transmitting end to send data packets to other cellular through terminals in the D2D user group, or as a receiving end to receive data packets sent by other cellular through terminals in the D2D user group. Therefore, in the D2D user group, for a receiving end, it is sometimes necessary to establish an RLC entity and a PDCP entity corresponding to each transmitting end, so that the data packets sent by each transmitting end can be processed. After the receiving end receives the data packets sent by all other cellular through terminals in the D2D user group in which it is located, the number of internal RLC entities and PDCP entities is the product of the number of transmitting ends and the number of services supported by each transmitting end. . If the number of senders is too large, the receiver needs to establish a large number of RLC entities and PDCP entities. Moreover, after the data transmission between the receiver and a sender ends, the previously established RLC entity and PDCP entity will still be established. Consuming a certain amount of resources, this situation will directly affect the ability of the receiving end to process data.

To this end, an embodiment of the present invention provides a data processing method, which is applied to any one of the D2D user groups, and only retains the data stream that is to be processed when the current user plane protocol layer is not received. The entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, and when the data stream to be processed by the current user plane protocol layer is received, the translation is corresponding to the service type of the data stream to be processed. The entity of the current user plane protocol layer can avoid storing too many entities of the current user plane protocol layer in the cellular through terminal, thereby improving the processing capability of the cellular through terminal, and finally ensuring accurate implementation of the D2D service. The following is a detailed description.

1 is a flowchart of Embodiment 1 of a data processing method according to the present application, which is applied to any one of the cellular through terminals in the D2D group of the inter-device communication. As shown in FIG. 1, the method may include: S101: Receive a data stream to be processed by a current user plane protocol layer, where the to-be-processed data stream is transmitted by a layer of a current user plane protocol layer. In this embodiment, the current user plane protocol layer is an RLC layer or a PDCP layer. When the cellular through terminal is a transmitting end, the to-be-processed data stream is sequentially in an application layer, a PDCP layer, an RLC layer, a MAC layer, and a PHY. If the current user plane protocol layer is the PDCP layer, the upper layer of the current user plane protocol layer is the application layer. If the current user plane protocol layer is the RLC layer, the current user plane protocol layer is One layer is the PDCP layer. When the cellular through terminal is the receiving end, the data stream to be processed is processed in the PHY layer, the MAC layer, the RLC layer, the PDCP layer, and the application layer. If the current user plane protocol layer is the RLC layer, the current user plane The upper layer of the protocol layer is the MAC layer. If the current user plane protocol layer is the PDCP layer, the upper layer of the current user plane protocol layer is the RLC layer.

S102: Determine whether the data stream to be processed is received. If the data stream to be processed is received, step S103 is performed. If the data stream to be processed is not received, step S104 is performed.

S103: Translate an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

It should be noted that the translation release mentioned here includes two cases, one is to delete the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, in this case, the entity is directly reduced. The number to reduce the resource consumption of the terminal. The other is to reset the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, that is, the current user plane protocol layer corresponding to the service type of the data stream to be processed. The processed data stream in the entity is transmitted to the next layer of the current user plane protocol layer, the unprocessed data stream is deleted, and various state variables in the entity are set to initial values, in this case, The entity will no longer consume the resources of the terminal.

S104: Retain an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

The embodiment provides a data processing method, which is applied to any one of the D2D user groups, and only retains the data to be processed when the data stream to be processed by the current user plane protocol layer is not received. The current user plane protocol layer entity corresponding to the service type of the data stream, and when the data stream to be processed by the current user plane protocol layer is received, the current user plane corresponding to the service type of the to-be-processed data stream is released. The entity of the protocol layer can avoid storing too many entities of the current user plane protocol layer in the cellular through terminal, thereby improving the processing capability of the cellular through terminal, and finally ensuring accurate implementation of the D2D service. FIG. 2 is a flowchart of Embodiment 2 of a data processing method according to the present application, where the method is applied to any one of the cellular through terminals in the D2D group. As shown in FIG. 2, the method may include:

S201: Receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by a layer of a current user plane protocol layer.

It should be noted that the step S201 is the same as the step S101 in the first embodiment, and is not described in detail in this embodiment. For details, refer to the related description in Embodiment 1.

S202: Determine whether a service data unit in the to-be-processed data stream is received in a preset time interval, if the service data in the to-be-processed data stream is not received within the preset time interval. The unit indicates that the data stream to be processed is received, and step S203 is performed. If the service data unit in the data stream to be processed is received within the preset time interval, it indicates that the data stream to be processed is not received, and step S204 is performed.

It should be noted that each data stream to be processed is composed of a plurality of consecutive data packets, and each data packet is composed of a data packet header and at least one service data unit. The upper layer of the current user plane protocol layer sequentially transmits the service data unit in the data stream to the current user plane protocol layer to serve as the data stream to be processed of the current user plane protocol layer.

In this embodiment, whether a service data unit in the to-be-processed data stream is received in a preset time interval may be determined by using a timer or a timer. The timer value of the timer is a preset time interval. When the current user plane protocol layer receives the first service data unit, the timer is started. If the timer timing value does not reach the preset time interval, the current user plane. When the protocol layer receives a service data unit, the timer is restarted, that is, the timer is re-timed, and the loop is repeated until the timer data value reaches the preset time interval, and the service data unit is not received again. Then, the data stream to be processed is received.

It should be noted that the preset time interval needs to be set according to the system requirements, so as to ensure that the current user plane protocol layer can process the received service data unit for the preset time interval, The preset time interval value is not limited in this embodiment.

S203: Translate an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

S204: Retain the current user plane protocol layer corresponding to the service type of the data stream to be processed. Entity.

It should be noted that the foregoing steps S203 and S204 are similar to the steps S103 and S104 in the method embodiment 1, and are not described in detail in this embodiment. For details, refer to the related description in the method embodiment 1.

It should be further noted that, after performing step S203, the message that the entity of the current user plane protocol layer has been translated may be notified to the upper layer of the current user plane protocol layer, so that the current user plane protocol The upper layer of the layer stops transmitting data streams. After performing step S204, the message of the current user plane protocol layer may also be notified to the upper layer of the current user plane protocol layer, so that the upper layer of the current user plane protocol layer continues to transmit data. flow.

The embodiment provides a data processing method, which is applied to any one of the D2D user groups, and determines whether a service data unit in the to-be-processed data stream is received in a preset time interval, and then Determining that the data stream to be processed is received, and retaining the current user plane protocol layer entity corresponding to the service type of the to-be-processed data stream only when the data stream to be processed by the current user plane protocol layer is not received. When the data stream to be processed by the current user plane protocol layer is received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed can be decrypted, thereby avoiding excessive storage in the cellular through terminal. The current user plane protocol layer entity, thereby improving the processing capability of the cellular pass-through terminal, and ultimately ensuring accurate implementation of the D2D service. FIG. 3 is a flowchart of Embodiment 3 of the data processing method of the present application, and the method is applied to any one of the cellular through terminals in the D2D group. As shown in FIG. 3, the method may include:

S301: Receive group announcement information of a group head broadcast of the D2D user group where the cellular through terminal is located, where the group announcement information includes a preset time interval.

It should be noted that the group announcement information is sent to the cellular through terminal in the D2D user group in the form of broadcast, which avoids the prior art, when the receiver has more receivers, the radio resource control RRC signaling is notified one by one. The consumption of large wireless resources caused by the sender saves radio resources and further ensures the processing capability of the cellular through terminal.

It should be noted that, when the group header is any one of the D2D user groups, and the group header is capable of communicating with the base station, the preset time interval is that the group header passes the radio resource. Controlling RRC signaling obtained from the base station. When the group header is any one of the D2D user groups, and the group header cannot communicate with the base station, the preset time The interval is obtained by the group header from its own internal configuration information. When the group header is a base station, and the

When the D2D user group is in the network coverage of the base station, the preset time interval is obtained by the group header from the network element of the evolved packet core network.

S302: Receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by the upper layer of the current user plane protocol layer.

S303: Determine whether a service data unit in the to-be-processed data stream is received in a preset time interval, if the service data in the to-be-processed data stream is not received within the preset time interval. The unit indicates that the data stream to be processed is received, and step S304 is performed. If the service data unit in the data stream to be processed is received within the preset time interval, it indicates that the data stream to be processed is not received, and step S305 is performed.

S304: Translate an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

S305: Retain an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

It should be noted that the foregoing steps S302 to S305 are similar to the steps S201 to S204 in the method embodiment 2, and are not described in detail in this embodiment. For details, refer to the related description in the method embodiment 2.

It should be further noted that, after performing step S304, the message that the entity of the current user plane protocol layer has been translated may be notified to the upper layer of the current user plane protocol layer, so that the current user plane protocol The upper layer of the layer stops transmitting data streams. After performing step S305, the message of the current user plane protocol layer may also be notified to the upper layer of the current user plane protocol layer, so that the upper layer of the current user plane protocol layer continues to transmit data. flow.

The embodiment provides a data processing method, which is applied to any one of the D2D user groups, and determines whether a service data unit in the to-be-processed data stream is received in a preset time interval, and then Determining that the data stream to be processed is received, the preset time interval is obtained from the group announcement information broadcasted by the received group header, and only when the data stream to be processed by the current user plane protocol layer is not received. Retaining an entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, and releasing the service of the data stream to be processed when receiving the data stream to be processed by the current user plane protocol layer The entity of the current user plane protocol layer corresponding to the type can avoid storing too many entities of the current user plane protocol layer in the cellular through terminal, thereby improving the cellular through terminal The processing capability of the terminal finally guarantees the accurate implementation of the D2D service. FIG. 4 is a flowchart of Embodiment 4 of a data processing method according to the present application, where the method is applied to any one of the cellular through terminals in the D2D group. As shown in FIG. 4, the method may include:

S401: Receive group announcement information of a group head broadcast of the D2D user group where the cellular through terminal is located, where the group announcement information includes a preset time interval and a mapping relationship between the service type and the logical channel identifier.

It should be noted that, in this embodiment, the mapping relationship between the service type and the logical channel identifier does not distinguish the terminal, that is, for any one of the cellular through terminals, as long as it supports a certain service, the logic corresponding to the service The channel identifiers are all the same. The logical channel identifier mentioned here may specifically be a logical channel number.

S402: Establish an entity group of a current user plane protocol layer, where the entities in the entity group have a one-to-one correspondence with the logical channel identifier.

After receiving the group announcement information of the group head broadcast and obtaining the mapping relationship between the service type and the logical channel identifier, the cellular short-passing terminal pre-establishes the RLC entity group of the RLC layer or the PDCP entity group of the PDCP layer, and the entity in the entity group The logical channel identifier is - corresponding. For example, the mapping relationship obtained by the cellular pass-through terminal is as follows:

Then, the entities in the RLC entity group that establish the current user plane protocol layer are RLC 1 and RLC2; and the entities in the corresponding PDCP entity group are PDCP1 and PDCP2.

S403: Receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by a layer of a current user plane protocol layer.

S404: Obtain a service type of the data stream to be processed.

If the cellular through terminal is the transmitting end, the data stream to be processed is the data stream to be sent. If the cellular through terminal is the receiving end, the data stream to be processed is the data stream to be received. Whether it is a data stream to be sent or a data stream to be received, its service type can be obtained from the data stream header.

S405: Determine, according to the mapping relationship between the service type and the logical channel identifier, the to-be-processed The logical channel identifier corresponding to the service type of the data stream is used as the logical channel identifier of the data stream to be processed.

Refer to the above table. For example, if the service type of the data stream to be processed is service 1, its logical channel identifier is 1.

S406: Select an entity corresponding to the logical channel identifier of the to-be-processed data stream from the entity group of the current user plane protocol layer, and serve as a current user plane protocol layer corresponding to the service type of the to-be-processed data stream. Processing entity.

Referring to the above table, for example, if the service type of the data stream to be processed is service 1, the logical channel identifier is 1, and the processing entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is RLC1. And / or PDCP1. In this case, taking the cellular through terminal as the receiving end as an example, it receives all the data streams sent by the transmitting end with the service type of service 1, and transmits them to RLC1 and/or PDCP1 for processing. That is to say, each cellular through terminal only needs to establish at most the same number of RLC entities as the service type and the same number of PDCP entities as the service type.

S407: Determine whether a service data unit in the to-be-processed data stream is received in a preset time interval, if no service data in the to-be-processed data stream is received in the preset time interval. The unit indicates that the data stream to be processed is received, and step S408 is performed. If the service data unit in the data stream to be processed is received within the preset time interval, it indicates that the data stream to be processed is not received, and step S409 is performed.

S408: Translate an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

S409: Retain an entity of a current user plane protocol layer corresponding to a service type of the to-be-processed data stream.

It should be noted that, after performing step S408, the message that the entity of the current user plane protocol layer has been translated may be notified to the upper layer of the current user plane protocol layer, so that the current user plane protocol layer The upper layer stops transmitting data streams. After performing step S409, the message of the current user plane protocol layer may also be notified to the upper layer of the current user plane protocol layer, so that the upper layer of the current user plane protocol layer continues to transmit data. flow.

The present embodiment provides a data processing method, which is applied to any one of the D2D user groups, and obtains a mapping relationship between the service type and the logical channel identifier to establish a service type. The same number of RLC entities and the same number of PDCP entities as the service type, and the current user corresponding to the service type of the to-be-processed data stream is retained only when the data stream to be processed by the current user plane protocol layer is not received. Entity of the protocol layer, and when receiving the data stream to be processed by the current user plane protocol layer, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed can be further avoided. The through terminal stores too many entities of the current user plane protocol layer, thereby improving the processing capability of the cellular through terminal, and finally ensuring accurate implementation of the D2D service. The embodiment of the present invention further provides a data processing apparatus, which is applied to any one of the D2D user groups, and only retains the data flow when the data stream to be processed by the current user plane protocol layer is not received. The entity of the current user plane protocol layer corresponding to the service type of the processed data stream, and when the data stream to be processed by the current user plane protocol layer is received, the current corresponding to the service type of the data stream to be processed is released. The entity of the user plane protocol layer can avoid storing too many entities of the current user plane protocol layer in the cellular through terminal, thereby improving the processing capability of the cellular through terminal, and finally ensuring accurate implementation of the D2D service. The details are described below separately.

FIG. 5 is a schematic structural diagram of Embodiment 1 of a data processing apparatus according to the present application, and the data processing apparatus can implement the method provided by the corresponding embodiment of FIG. 1 . The device is applied to any of the cellular through terminals in the D2D group. As shown in FIG. 5, the apparatus may include:

The receiving unit 11 is configured to receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by the upper layer of the current user plane protocol layer.

The determining unit 12 is configured to determine whether the receiving unit 11 receives the noon for the data stream to be processed.

The decoding unit 13 is configured to: when the determining unit 12 determines that the data stream to be processed is received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is released.

The retaining unit 14 is configured to reserve an entity of the current user plane protocol layer corresponding to the service type of the to-be-processed data stream when the determining unit 12 determines that the to-be-processed data stream is not received.

The function of the receiving unit 11 described above can be implemented by a receiver in the cellular through terminal, and the above judgment The functions of the disconnect unit 12, the decipher unit 13, and the reservation unit 14 can be implemented by a processor in the cellular through terminal. See Figure 9 for details.

FIG. 6 is a schematic structural diagram of Embodiment 2 of a data processing apparatus according to the present application. The data processing apparatus can implement the method provided by the corresponding embodiment of FIG. 2, and the apparatus is applied to any one of the D2D groups. As shown in Figure 6, the device can include:

The receiving unit 21 is configured to receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by the upper layer of the current user plane protocol layer. The current user plane protocol layer is an RLC layer or a PDCP layer.

The determining unit 22 is specifically configured to determine whether the receiving unit 21 receives a service data unit in the data stream to be processed within a preset time interval, if one of the received time intervals is received The service data unit in the data stream to be processed indicates that the data stream to be processed is not received; if a service data unit in the data stream to be processed is received within the preset time interval, The receiving of the data stream to be processed is completed.

The decoding unit 23 is configured to: when the determining unit 22 determines that the data stream to be processed is received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is released.

The retaining unit 24 is configured to, when the determining unit 22 determines that the to-be-processed data stream is not received, retain an entity of the current user plane protocol layer corresponding to the service type of the to-be-processed data stream.

The reporting unit 25 is configured to: when the determining unit 22 determines that the data stream to be processed is received, the decoding unit releases the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed Then, the message that the entity of the current user plane protocol layer has been translated is notified to the upper layer of the current user plane protocol layer.

The function of the receiving unit 21 can be implemented by a receiver in the cellular through terminal. The functions of the determining unit 22, the releasing unit 23, the retaining unit 24, and the reporting unit 25 can be implemented by a processor in the cellular through terminal. See Figure 9 for details. FIG. 7 is a schematic structural diagram of Embodiment 3 of a data processing apparatus according to the present application, and the data processing apparatus can implement the method provided by the embodiment corresponding to FIG. 3 above. The device is applied to any one of the cellular through terminals in the D2D group. As shown in FIG. 7, the apparatus may include: The group announcement information receiving unit 31 is configured to receive, before the receiving unit 32 receives the data stream to be processed by the current user plane protocol layer, the group announcement information of the group head broadcast of the D2D user group where the cellular through terminal is located, where The preset time interval is included in the group announcement information.

The group announcement information receiving unit is specifically configured to:

Or, when the group header is any one of the D2D user groups, and the group header is not capable of communicating with the base station, the preset time interval is an internal configuration of the group header from itself. Obtained in the information.

Or, when the group header is a base station, and the D2D user group is within the network coverage of the base station, the preset time interval is obtained by the group header from a network element of an evolved packet core network. .

The receiving unit 32 is configured to receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by the upper layer of the current user plane protocol layer.

The determining unit 33 is specifically configured to determine whether the receiving unit 32 receives a service data unit in the data stream to be processed within a preset time interval, if one of the received time intervals is received The service data unit in the data stream to be processed indicates that the data stream to be processed is not received; if a service data unit in the data stream to be processed is not received within the preset time interval, Then, the data stream to be processed is received.

The decoding unit 34 is configured to: when the determining unit 33 determines that the data stream to be processed is received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is released.

The retaining unit 35 is configured to reserve, when the determining unit 33 determines that the to-be-processed data stream is not received, the entity of the current user plane protocol layer corresponding to the service type of the to-be-processed data stream.

The reporting unit 36 is configured to: when the determining unit 33 determines that the data stream to be processed is received, the decoding unit releases the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed Then, the message that the entity of the current user plane protocol layer has been translated is notified to the upper layer of the current user plane protocol layer.

The functions of the group announcement information receiving unit 31 and the receiving unit 32 may be performed by the cellular through terminal. The function of the above-mentioned judging unit 33, the deciphering unit 34, the retaining unit 35, and the reporting unit 36 can be implemented by a processor in the cellular through terminal. See Figure 9 for details. FIG. 8 is a schematic structural diagram of Embodiment 4 of a data processing apparatus according to the present application, and the data processing apparatus can implement the method provided by the embodiment corresponding to FIG. 4 above. The device is applied to any one of the cellular through terminals in the D2D group. As shown in FIG. 8, the apparatus may include:

The group announcement information receiving unit 41 is configured to receive, before the receiving unit 43 receives the data stream to be processed by the current user plane protocol layer, the group announcement information of the group head broadcast of the D2D user group where the cellular through terminal is located, where The group announcement information includes the preset time interval, and a mapping relationship between the service type and the logical channel identifier.

When the group header is any one of the D2D user groups, and the group header is capable of communicating with the base station, the preset time interval and the mapping relationship between the service type and the logical channel identifier are The group header is obtained from the base station by radio resource control RRC signaling.

Or, when the group header is any one of the D2D user groups, and the group header is not capable of communicating with the base station, the preset time interval and the mapping relationship between the service type and the logical channel identifier The group header is obtained from its own internal configuration information.

Or, when the group header is a base station, and the D2D user group is within the network coverage of the base station, the preset time interval and a mapping relationship between the service type and the logical channel identifier are the group header evolution Obtained in the network element of the packet core network.

The entity group establishing unit 42 is configured to establish, before the receiving unit 43 receives the data stream to be processed by the current user plane protocol layer, the entity group of the current user plane protocol layer, the entity in the entity group and the logic Channel identification - corresponding.

The receiving unit 43 is configured to receive a data stream to be processed by the current user plane protocol layer, where the to-be-processed data stream is transmitted by the upper layer of the current user plane protocol layer.

The service type obtaining unit 44 is specifically configured to acquire, after the receiving unit 43 receives the data stream to be processed by the current user plane protocol layer, the service type of the data stream to be processed;

The logical channel identifier determining unit 45 is configured to determine, according to the mapping relationship between the service type and the logical channel identifier, a service type pair of the data stream to be processed acquired by the service type acquiring unit 44. The logical channel identifier is identified and used as the logical channel identifier of the data stream to be processed;

The entity selecting unit 46 is configured to select, from the entity group of the current user plane protocol layer, an entity corresponding to the logical channel identifier of the data stream to be processed determined by the logical channel identifier determining unit 45, and as the to-be-processed The business type of the data stream corresponds to the processing entity of the current user plane protocol layer.

The determining unit 47 is specifically configured to determine whether the receiving unit 43 receives a service data unit in the to-be-processed data stream within a preset time interval, if the one received in the preset time interval The service data unit in the data stream to be processed indicates that the data stream to be processed is not received; if a service data unit in the data stream to be processed is not received within the preset time interval, Then, the data stream to be processed is received.

The decoding unit 48 is configured to: when the determining unit 47 determines that the data stream to be processed is received, the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed is released.

The retaining unit 49 is configured to reserve an entity of the current user plane protocol layer corresponding to the service type of the to-be-processed data stream when the determining unit 47 determines that the to-be-processed data stream is not received.

The reporting unit 50 is configured to: when the determining unit 47 determines that the data stream to be processed is received, the decoding unit releases the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed Then, the message that the entity of the current user plane protocol layer has been translated is notified to the upper layer of the current user plane protocol layer.

The function of the above-mentioned group announcement information receiving unit 41 and the receiving unit 43 can be implemented by a receiver in the cellular through terminal, the entity group establishing unit 42, the service type obtaining unit 44, the logical channel identifier determining unit 45, the entity selecting unit 46, The functions of the determining unit 47, the deciphering unit 48, the retaining unit 49, and the reporting unit 50 can be implemented by a processor in the cellular through terminal. See Figure 9 for details. It should be noted that the function implementation of each unit of the foregoing apparatus has been described in detail in the method embodiment, and the device embodiment will not be described in detail. For details, refer to the related description in the method embodiment.

It should be further noted that the embodiment of the present application further provides a cellular through terminal, including The data processing apparatus described in any one of Embodiments 1 to 4 of the data processing apparatus. In addition, the embodiment of the present application further provides a communication device, which may be a host server including a computing capability, or a personal computer PC, or a portable computer or terminal, etc., and the specific embodiment of the present application is not correct. The specific implementation of the compute node is limited.

FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention. The communication device can be a cellular through terminal, and the method provided by the embodiment corresponding to the above Figures 1 to 4 can be implemented. As shown in FIG. 9, the communication device 700 includes:

A processor 710, a Communications Interface 720, a memory 730, a bus 740, a receiver 750, and a transmitter 760.

The processor 710, the communication interface 720, the memory 730, the receiver 750, and the transmitter 760 complete communication with each other via the bus 740.

The processor 710 is configured to execute the program 732.

In particular, program 732 can include program code, the program code including computer operating instructions. Processor 710 may be a central processing unit CPU or a specific integrated circuit ASIC

(Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

The memory 730 is configured to store the program 732. The memory 730 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory. The processor 710 calls the program 732 in the memory 730 via the communication bus 740 to implement the above method in conjunction with the receiver 750, the transmitter 760, and the like. In summary, the embodiment of the present application discloses a data processing method and apparatus, which are applied to any one of the D2D user groups, and only when the data stream to be processed by the current user plane protocol layer is not received. Retaining the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed, and when receiving the data stream to be processed by the current user plane protocol layer, then releasing the data stream to be processed The entity of the current user plane protocol layer corresponding to the service type can avoid storing too many entities of the current user plane protocol layer in the cellular through terminal, thereby improving the processing capability of the cellular through terminal, and finally ensuring accurate implementation of the D2D service. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on differences from other embodiments, and the same similar parts between the various embodiments may be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method part.

A person skilled in the art will further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in a combination of electronic hardware or electronic hardware and computer software. In order to clearly illustrate the interchangeability of some of the hardware and software, the components and steps of the various examples have been generally described in terms of functions in the above description. Whether these functions are performed in hardware or a combination of hardware and software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented directly in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments are obvious to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded to the broadest scope of the principles and novel features disclosed herein.

Claims

Rights request

1. A data processing method, characterized in that it is applied to any cellular direct terminal in the inter-device direct communication D2D group, and the method includes:

Receive the data stream to be processed by the current user plane protocol layer, which is transmitted by the upper layer of the current user plane protocol layer;

Determine whether the data stream to be processed has been received;

If the reception of the data flow to be processed is completed, interpret and release the entity of the current user plane protocol layer corresponding to the service type of the data flow to be processed;

If the data flow to be processed has not been completely received, the entity of the current user plane protocol layer corresponding to the service type of the data flow to be processed is retained.

2. The method according to claim 1, wherein the determining whether the data flow packet to be processed has been received specifically includes:

Determine whether a service data unit in the data stream to be processed is received within a preset time interval. If a service data unit in the data stream to be processed is received within the preset time interval, then It means that the data stream to be processed has not been received completely; if a service data unit in the data stream to be processed is not received within the preset time interval, it means that the data stream to be processed has been received.

3. The method according to claim 1 or 2, characterized in that: if the data stream to be processed is received, the current user plane protocol layer corresponding to the service type of the data stream to be processed is translated and released. After the entity, the method also includes:

Notify the upper layer of the current user plane protocol layer that the entity of the current user plane protocol layer has been translated.

4. The method according to claim 2 or 3, characterized in that, before receiving the data stream to be processed by the current user plane protocol layer, the method further includes:

Receive group announcement information broadcast by a group leader of the D2D user group where the cellular direct terminal is located, where the group announcement information includes the preset time interval.

5. The method according to claim 4, characterized in that, when the group leader is any cellular direct-connect terminal in the D2D user group, and the group leader can communicate with the base station, the preset The time interval is obtained by the group head from the base station through radio resource control RRC signaling.

6. The method according to claim 4, characterized in that when the group leader is any cellular direct terminal in the D2D user group and the group leader is unable to communicate with the base station, the predetermined It is assumed that the time interval is obtained by the group head from its own internal configuration information.

7. The method according to claim 4, characterized in that when the group head is a base station and the D2D user group is within the network coverage of the base station, the preset time interval is The header is obtained from the network element of the evolved packet core network.

8. The method according to claim 4, characterized in that the group announcement information also includes a mapping relationship between service types and logical channel identifiers;

Then, before receiving the data stream to be processed by the current user plane protocol layer, the method further includes: establishing an entity group of the current user plane protocol layer, and the entities in the entity group are consistent with the logical channel identifier. One correspondence.

9. The method according to claim 8, characterized in that, after receiving the data stream to be processed by the current user plane protocol layer, the method further includes:

Obtain the service type of the data flow to be processed;

Determine the logical channel identifier corresponding to the service type of the data flow to be processed according to the mapping relationship between the service type and the logical channel identifier and use it as the logical channel identifier of the data flow to be processed;

Select the entity corresponding to the logical channel identifier of the data flow to be processed from the entity group of the current user plane protocol layer and use it as the processing of the current user plane protocol layer corresponding to the service type of the data flow to be processed. entity.

10. The method according to any one of claims 1 to 9, characterized in that the current user plane protocol layer is an RLC layer or a PDCP layer.

11. A data processing device, characterized in that it is applied to any cellular direct communication terminal in the D2D user group for inter-device communication, and the device includes:

The receiving unit is used to receive the data stream to be processed by the current user plane protocol layer, and the data stream to be processed is transmitted by the upper layer of the current user plane protocol layer;

The judgment unit is used to judge whether the receiving unit has completed receiving the data stream to be processed; the interpretation unit is used to release the data stream with the data stream to be processed when the judgment unit determines that the data stream to be processed is received. The entity of the current user plane protocol layer corresponding to the service type of the data flow being processed; A retaining unit, configured to retain the entity of the current user plane protocol layer corresponding to the service type of the data stream to be processed when the judgment unit determines that the data stream to be processed has not been received.

12. The device according to claim 11, wherein the judging unit is specifically configured to: judge whether the receiving unit receives a service data unit in the data stream to be processed within a preset time interval. , if a service data unit in the data stream to be processed is received within the preset time interval, it means that the data stream to be processed has not been received; if it is not received within the preset time interval to a service data unit in the data stream to be processed, it means that the data stream to be processed has been received.

13. The device according to claim 11 or 12, characterized in that, the device further includes: a reporting unit, configured to: when the judgment unit determines that the data stream to be processed has been received, the interpretation and release unit interprets After placing the entity of the current user plane protocol layer corresponding to the service type of the data flow to be processed, notify the previous entity of the current user plane protocol layer that the entity of the current user plane protocol layer has been translated. layer.

14. The device according to claim 12 or 13, characterized in that, the device further includes: a group announcement information receiving unit, configured to receive the data stream to be processed by the current user plane protocol layer before the receiving unit receives it. Group announcement information broadcast by the group leader of the D2D user group where the cellular direct terminal is located, and the group announcement information includes the preset time interval.

15. The device according to claim 14, characterized in that the group announcement information receiving unit is specifically used to:

When the group head is any direct-to-cell terminal in the D2D user group, and the group head is able to communicate with the base station, the preset time interval is when the group head controls RRC signaling from obtained by the base station.

16. The device according to claim 14, characterized in that the group announcement information receiving unit is specifically used to:

When the group head is any direct-to-cell terminal in the D2D user group and the group head is unable to communicate with the base station, the preset time interval is obtained by the group head from its own internal configuration information. Obtained.

17. The device according to claim 14, characterized in that the group announcement information receiving unit is specifically used to: When the group head is a base station and the D2D user group is within the network coverage of the base station, the preset time interval is obtained by the group head from a network element of the evolved packet core network.

18. The device according to claim 14, wherein the group announcement information also includes a mapping relationship between service types and logical channel identifiers, then the device further includes:

An entity group establishment unit, configured to establish an entity group of the current user plane protocol layer before the receiving unit receives the data stream to be processed by the current user plane protocol layer, and the entities in the entity group are identified by the logical channel --correspond.

19. The device according to claim 18, characterized in that, the device further includes: a service type acquisition unit, specifically configured to acquire the data stream to be processed by the current user plane protocol layer after the receiving unit receives it. The business type of the data flow to be processed;

A logical channel identification determining unit, configured to determine a logical channel identification corresponding to the service type of the data flow to be processed obtained by the service type obtaining unit according to the mapping relationship between the service type and the logical channel identification and use it as the to-be-processed The logical channel identification of the data stream;

An entity selection unit, configured to select an entity corresponding to the logical channel identifier of the data flow to be processed determined by the logical channel identifier determination unit from the entity group of the current user plane protocol layer and use it as the data to be processed. The processing entity of the current user plane protocol layer corresponding to the service type of the flow.

20. The device according to any one of claims 11 to 19, characterized in that the current user plane protocol layer is an RLC layer or a PDCP layer.

21. A cellular direct-through terminal, characterized by comprising the data processing device according to any one of claims 11 to 20.