WO2015117270A1

WO2015117270A1 - Information processing method and apparatus, and user equipment

Info

Publication number: WO2015117270A1
Application number: PCT/CN2014/071903
Authority: WO
Inventors: 邱涛; 吴联海; 常宁娟; 徐海博
Original assignee: 富士通株式会社; 邱涛; 吴联海; 常宁娟; 徐海博
Priority date: 2014-02-08
Filing date: 2014-02-08
Publication date: 2015-08-13

Abstract

An information processing method and apparatus, and a user equipment. The method comprises: when a discovery message, stored in a discovery buffer, of a device-to-device (D2D) discovery process is transmitted to a bottom-layer, a user equipment discarding the discovery message or keeping the discovery message in the discovery buffer. By using the method, a discovery message in a D2D discovery process can be processed.

Description

Information processing method, device and user equipment

The present invention relates to the field of communications, and in particular, to an information processing method, apparatus, and user equipment. Background technique

Device-to-device (D2D) communication is a key technology added to the LTE-A system. By introducing direct communication between devices (without forwarding through the base station), the user's transmission rate can be effectively improved and reduced. User's energy consumption.

The current standardization work divides the D2D research into two parts: the discovery process and the communication process. The discovery process is implemented by the device sending/detecting discovery messages of other devices, but there is currently no solution for how to process the discovery message.

It should be noted that the above description of the technical background is only for the purpose of facilitating the clear and complete description of the technical solutions of the present invention, and is convenient for understanding by those skilled in the art. The above technical solutions are not considered to be well known to those skilled in the art simply because these solutions are set forth in the background section of the present invention. Summary of the invention

To solve the above problem, an embodiment of the present invention provides an information processing method, apparatus, and user equipment, by which a process of discovering a message can be implemented.

A first aspect of the embodiments of the present invention provides an information processing method, where the method includes:

After the discovery message of the device-to-device (D2D) discovery process stored in the discovery buffer is transmitted to the underlying layer, the user device discards the discovery message or retains the discovery message in the discovery buffer.

A second aspect of the embodiments of the present invention provides an information processing apparatus, where the apparatus includes:

a first processing unit, configured to discard the discovery message or send the discovery message after a discovery message of a device-to-device (D2D) discovery process stored in a discovery buffer is transmitted to an underlay Reserved in the discovery buffer.

A third aspect of the embodiments of the present invention provides a user equipment, comprising the apparatus of the second aspect. The beneficial effects of the embodiment of the present invention are that the processing of the discovery message of the D2D discovery process can be implemented by the above method. Specific embodiments of the present invention are disclosed in detail with reference to the following description and the drawings, in which <RTIgt; It should be understood that the embodiments of the invention are not limited in scope. The embodiments of the present invention include many variations, modifications, and equivalents within the scope of the appended claims.

Features described and/or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, in combination with, or in place of, features in other embodiments. .

It should be emphasized that the term "comprising", when used herein, refers to the presence of a feature, component, step or component, but does not exclude the presence or addition of one or more other features, components, steps or components. DRAWINGS

The drawings are included to provide a further understanding of the embodiments of the invention, and are in the Obviously, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor. In the drawings: FIG. 1 is a flowchart of an information processing method according to Embodiment 1 of the present invention;

2 is a flowchart of an information processing method according to Embodiment 2 of the present invention;

Figure 3 is a block diagram showing the structure of an information processing apparatus according to a fourth embodiment of the present invention;

Figure 4 is a block diagram showing the structure of an information processing apparatus according to a fifth embodiment of the present invention;

Figure 5 is a block diagram showing the structure of an information processing apparatus according to a sixth embodiment of the present invention;

Figure 6 is a block diagram showing the structure of an information processing apparatus according to a seventh embodiment of the present invention;

7 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention;

Figure 8 is a block diagram showing the configuration of a communication system in accordance with a ninth embodiment of the present invention. detailed description

The foregoing and other features of the invention will be apparent from the The specific embodiments of the present invention are disclosed in the specification and the drawings, which illustrate the embodiments in which the principles of the invention may be employed, it is understood that the invention is not limited to the described embodiments, but instead The invention includes all modifications, variations and equivalents falling within the scope of the appended claims. Various embodiments of the present invention will be described below with reference to the accompanying drawings. First, the uplink data processing process of cellular communication is explained:

1. When the L2 (Layer 2, including PDCP, RLC, and MAC) layers of the user equipment receive uplink data from the upper layer, the data packet is buffered at the PDCP layer, encrypted, integrity protected, and header compressed, and then transmitted. Give the RLC layer;

2. When the RLC layer receives the packet from the PDCP layer, it buffers it in the RLC's transmission buffer. When the RLC layer receives the uplink transmission permission from the MAC layer, the data packet in the buffer is divided and concatenated, and then sent to the MAC layer;

3. When the HARQ entity of the MAC layer receives the uplink transmission permission from the base station, the HARQ entity acquires data from the multiplexing entity of the MAC layer. Since the multiplexing entity has no data at this time, the MAC layer requests data from the RLC layer. After obtaining the data from the RLC layer, the MAC layer performs logical channel priority, multiplexing, etc., and then caches it in the multiplexing entity and then transmits it to the HARQ entity. After the HARQ entity transmits the data to the underlay, the HARQ entity caches the data in the corresponding HARQ process.

The above data processing flow is obviously not available for the discovery process of D2D communication. The main reasons include:

1. The data transmission of the discovery process has no ARQ of the RLC layer and HARQ of the MAC layer, which indicates that the L2 of the user equipment needs to initiate retransmission of the discovery message by itself;

2. The uplink transmission permission of the traditional uplink transmission is that the user equipment reports through the report buffer status (including the buffer data of the RLC layer and the PDCP layer), and then the base station implements by scheduling. For the discovery process, the transmission permission may be that the user equipment actively selects according to a predefined resource.

Therefore, an embodiment of the present invention provides an information processing method, apparatus, and user equipment, by which processing of a discovery message can be implemented. The information processing method, apparatus, and user equipment of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Example 1

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing an information processing method according to a first embodiment of the present invention. As shown in FIG. 1, the method includes: Step 101: After a device-to-device (D2D) discovery process stored in a discovery buffer is transmitted to an underlay, the user equipment discards the discovery message or discovers the discovery message. The message remains in the discovery buffer.

Through the above method, the processing of the discovery message during the discovery process can be realized.

In this embodiment, the method may further include:

Step 100: Establish the discovery buffer.

For example, a buffer for caching discovery messages can be created at the L2 layer, which can be located in packet data aggregation. Protocol (PDCP, Packet Data Convergence Protocol) layer, Radio Link Control (RLC) layer or Media Access Control (MAC) layer, which can be called a discovery buffer. The discovery buffer created can always exist, but is not limited to this case.

For example, in this embodiment, the discovery buffer may also be established when the information related to the discovery is configured, or when a discovery message is received from the upper layer at the L2 layer;

The information related to the discovery may include information such as an L2 layer parameter configuration, an interface configuration between L2 layers, and the like.

In this way, when the discovery message of the D2D discovery process is generated by the user equipment upper layer (application layer), the discovery message may be transmitted to the L2 layer, and after receiving the discovery message, the L2 layer may store the discovery message in the discovery buffer. , such as PDCP layer, RLC layer or MAC layer.

In this embodiment, the method may further include:

When the user equipment reselects, switches, or reestablishes to a cell that does not support the D2D function or the D2D discovery function, or when the user equipment moves to an area without network coverage, or when the discovery process is rejected or prohibited by the network, or is released and discovered Release or empty the discovery buffer for related configuration.

In this embodiment, when the discovery message stored in the discovery buffer is transmitted to the bottom layer, when the discovery buffer is not empty, the method further includes:

A status report of the discovery buffer is generated, which is used to indicate whether there is data or an exact message size. For example, 1-bit information can be used to indicate whether there is data or to indicate the exact message size.

In addition, the status report may be sent to the base station to trigger the base station to allocate the discovery resource to the user equipment; or the status report may be sent to the discovery resource selection entity of the user equipment to trigger the discovery resource selection entity. Proactively choose to discover resources.

The discovery resource selection entity may be located at the L2 layer, but is not limited thereto, and may also be located at other layers. In this way, after the user equipment obtains the available discovery resource, the MAC layer of the user equipment can obtain the discovery message from the discovery buffer, and transmit the discovery message or the obtained discovery message to the bottom layer. Wherein, the bottom layer can be a physical layer.

In this embodiment, after step 101, the method further includes: when the discovery buffer is empty, the user equipment notifies the discovery resource selection entity to stop the discovery resource selection process.

It can be seen from the above embodiments that the processing of discovering messages during the discovery process can be implemented by the above method, and the problems existing in the prior art are solved. Example 2

The following is a detailed description of how to process the discovery message in conjunction with a specific example.

Fig. 2 is a flow chart showing an information processing method according to a second embodiment of the present invention. As shown in FIG. 2, the method includes: Step 201: Establish a discovery buffer.

In this embodiment, the discovery buffer may be established at the L2 layer for storing discovery messages, for example, in PDCP,

The discovery buffer is established by the RLC or MAC layer;

The discovery buffer may be pre-established; or the high-level (RRC (Radio Resource Control) layer) configures discovery-related information for the L2 layer (for example, L2 layer parameter configuration, interface configuration between L2 layers) Etc., or when the L2 layer receives a discovery message from a higher layer, the discovery buffer is created;

In this embodiment, the created discovery buffer may be always present or may be released, as described in Embodiment 1, and details are not described herein again.

In this embodiment, step 201 is an optional step for the processing of the discovery message.

In the present embodiment, for example, when an application for discovery is started, a discovery message is generated by a higher layer of the user equipment, and the discovery message is transmitted to the L2 layer. After receiving the discovery message on the L2 layer, the method for processing the discovery message may include:

Step 202: Store the received discovery message into the discovery buffer.

Step 203: When the discovery buffer is not empty, generate a status report of the discovery buffer, where the status report is used to indicate whether there is data or an exact message size.

Among them, 1-bit information can be used to indicate whether there is data or indicate the exact message size.

Step 204: Send the status report to the discovery resource selection entity of the user equipment, to trigger the discovery resource selection entity to actively select the discovery resource.

The user equipment may also send the status report to the base station to trigger the base station to allocate the discovery resource to the user equipment.

Step 205: The user equipment obtains available discovery resources.

The discovery resource selection entity of the user equipment may actively select the discovery resource, or the base station may allocate the discovery resource to the user equipment according to the status report.

After the user equipment obtains the available discovery resources, the method may further include: Step 206: Obtain the discovery message from the discovery buffer, and transmit the discovery message, or the discovery message and the obtained discovery resource to the bottom layer;

In this embodiment, the MAC layer of the user equipment acquires the discovery message from the discovery buffer; the bottom layer may be a physical layer.

Step 207: After the discovery message is transmitted to the bottom layer, the user equipment may delete the discovery message from the discovery buffer, or save the discovery message in the discovery buffer.

Step 208: Determine whether the buffer is found to be empty. If not, return to step 203; if it is empty, go to step 209.

Step 209: When the discovery buffer is empty, the user equipment notifies the discovery resource selection entity to stop the discovery resource selection process.

It can be seen from the foregoing embodiment that a discovery message is generated on the upper layer of the user equipment, and when the discovery message is received on the L2 layer, the discovery message can be processed by using the foregoing method. The step 201 may be performed before the processing of the discovery message, which is an optional step. Steps 202-206 are examples of obtaining an available resource and a discovery message transmission process according to an embodiment of the present invention, which are optional steps; In the case of deleting the discovery message, it may happen that the buffer is empty, so steps 208-209 are also optional steps.

Example 3

Embodiment 3 of the present invention further provides an information processing method. Based on Embodiment 2, the difference from Embodiment 2 is how to process the discovery message when the discovery message is multiple.

In this embodiment, when the discovery buffer is not empty, when the L2 layer of the user equipment receives a new discovery message from the upper layer, the user equipment may process the discovery message in the following manner:

The first:

The user equipment replaces the new discovery message received with the discovery message stored in the discovery buffer, in which case a discovery message exists in the discovery buffer.

Second:

The received new discovery message is saved in the discovery buffer.

In this case, multiple discovery messages may be reserved in the discovery buffer. After the user equipment obtains the available discovery resources, the user equipment may randomly select one or more discovery messages for transmission, which is about to be selected. The discovery message is transmitted to the underlying.

The third type: For the new discovery message, a new discovery message processing process is created, such as creating a new discovery buffer, and then maintaining the processing flow of each discovery message in parallel (such as the process described in Embodiment 1 or Embodiment 2).

It can be seen from the above embodiments that multiple discovery messages can be processed by the method described in the foregoing embodiments. Example 4

The fourth embodiment of the present invention further provides an information processing method. The difference between the second embodiment and the second embodiment is that the user equipment is reselected, switched, or re-established to a cell supporting the D2D function or the D2D discovery function. When, how to handle the discovery message.

In this embodiment, when the user equipment reselects, switches, or reestablishes to a cell that supports the D2D function or the D2D discovery function, the user equipment delays the discovery message transmission process, including selecting the discovery resource until the user equipment The discovery configuration of the new cell is completed, and the discovery configuration may include reading configuration information, D2D related operations, and the like in the new cell. Alternatively, the user equipment clears the discovery buffer and notifies the upper layer that the discovery message transmission process is terminated.

The above embodiments 1-3 can be used in combination, that is, the user equipment can simultaneously have the above functions, and realize the processing of the discovery message.

A person skilled in the art can understand that all or part of the steps of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. The method may include all or part of the steps in the foregoing embodiment, and the storage medium may include: ROM, RAM, magnetic disk, optical disk, and the like.

The embodiment of the invention further provides an information processing device and a user equipment, as described in the following embodiments. Since the principle of solving the problem between the device and the user equipment is similar to the above information processing method, the implementation of the device and the user equipment can refer to the implementation of the method, and the repeated description is not repeated.

Example 4

Fig. 3 is a block diagram showing the configuration of an information processing apparatus according to a fourth embodiment of the present invention. As shown in FIG. 3, the apparatus 300 includes: a first processing unit 301, where the discovery message used in the device-to-device (D2D) discovery process generated by the user equipment layer is transmitted to the bottom layer, and is discarded and saved in the device. Discover the discovery message of the buffer or leave the discovery message in the discovery buffer.

In this embodiment, the apparatus 300 may further include a buffer establishing unit 302 and a discovery buffer 303. The buffer establishing unit 302 is configured to establish the discovery buffer at the L2 layer, but is not limited to the L2 layer, and may be at other layers. Established to store the discovery message. The buffer establishing unit 302 is an optional component, and processes the discovery message. The method of pre-establishing and always existing or being released, and establishing a discovery buffer is as described in Embodiment 1-3, and the contents thereof are incorporated herein, and details are not described herein again.

A discovery buffer 303 is used to store the discovery message.

Example 5

Fig. 4 is a block diagram showing the configuration of an information processing apparatus according to a fifth embodiment of the present invention. Based on Embodiment 4, the same as Embodiment 4, the apparatus 400 includes a first processing unit 401, a buffer establishment unit 402, and a discovery buffer 403, which have the same functions as Embodiment 4, and are not described herein again.

In this embodiment, after the discovery buffer is created, the discovery buffer may be emptied or released. Thus, as shown in FIG. 4, the device 400 further includes:

The second processing unit 404 is configured to: when the user equipment reselects, switches, or reestablishes to a cell that does not support the D2D function or the D2D discovery function, or when the user equipment moves to an area without network coverage, or The discovery process is rejected or disabled by the network, or the discovery buffer 403 is released or emptied when the configuration related to the discovery is released.

In the present embodiment, the second processing unit 404 is an optional component.

Example 6

Fig. 5 is a block diagram showing the configuration of an information processing apparatus according to a sixth embodiment of the present invention. Based on Embodiment 4, the same as Embodiment 4, the apparatus 500 includes a first processing unit 501, a buffer establishment unit 502, and a discovery buffer 503, which have the same functions as Embodiment 4, and are not described herein again. The difference from Embodiment 4 is that the apparatus 500 further includes the following components:

The report generating unit 504 is configured to generate a status report of the discovery buffer, where the status report is used to indicate whether there is data or exact before the discovery buffer is not empty, before the discovery message is transmitted to the bottom layer. The size of the message.

As shown in FIG. 5, the apparatus 500 further includes a triggering unit 505, where the triggering unit 505 is configured to send the status report to the base station to trigger the base station to allocate the discovery resource to the user equipment; or, report the status to the user equipment. The discovery resource selection entity 506 sends a trigger to the discovery resource selection entity 506 to select the discovery resource.

The discovery resource selection entity 506 is configured to select a discovery resource based on a status report sent by the trigger unit 505. In this embodiment, in the case that the discovery resource selection entity 506 selects a discovery resource for the user equipment, The apparatus 500 further includes an information transmission unit (not shown) connected to the discovery resource selection entity 506 for collecting the discovery message stored in the discovery buffer or after saving the available discovery resources. The discovery message of the discovery buffer and the discovery resource are transmitted to the underlying layer. Thus, after transmitting the discovery message to the underlay, the first processing unit 501 can discard or retain the discovery message in the discovery buffer 503.

In this embodiment, after the first processing unit 501 discards or retains the discovery message, the information processing apparatus

The 500 further includes a third processing unit 508, configured to notify the discovery resource selection entity to stop the discovery resource selection process when the discovery buffer is empty.

It can be seen from the foregoing embodiment that when the discovery message processing is performed, the sending of the status report may be triggered when the discovery buffer 503 is not empty, and the base station or discovery resource selection entity 506 may also report the user equipment based on the status. Assign or select discovery resources.

The components of the above embodiments 4-6 can be used in combination, such as all components can be included in one information processing device, or can be partially combined according to actual needs, as will be apparent to those skilled in the art, no longer here. Narration.

Example 7

Fig. 6 is a block diagram showing the configuration of an information processing apparatus according to a seventh embodiment of the present invention. As shown in Figure 6, for the embodiment

6 The same components are not described in detail.

The device 600 is different from the embodiment 6 in that the discovery resource selection entity 506 is not included. In the case that the triggering unit 505 triggers the base station to allocate the discovery resource to the user equipment, the device 600 includes an information receiving unit 606, where the receiving base station is The discovery resource allocated by the user equipment.

Further, based on the above-described Embodiments 4-7, in the case where there are a plurality of discovery messages, the above information processing apparatus may further include a fourth processing unit (not shown) for using the discovery buffer The area is not empty, and when a new discovery message is received from the upper layer, the received new discovery message is replaced with the discovery message stored in the discovery buffer; or the received new discovery message is saved in the discovery. Buffer; Or, create a new discovery buffer and save the new discovery message received in the newly created discovery buffer. The specific processing is as described in Embodiment 3, and the content thereof is incorporated herein, and details are not described herein again.

In this embodiment, in the case that the fourth processing unit saves the received new discovery message in the discovery buffer 503, the discovery buffer 503 has multiple discovery messages, and thus, the information processing apparatus may further include a selection unit (not shown) for randomly selecting the discovery buffer in the discovery buffer after the user equipment obtains the available discovery resource when the received new discovery message is saved in the discovery buffer One or one More than one discovery message is transmitted, and the selected discovery message is transmitted to the bottom layer.

In this embodiment, when the user equipment performs reselection, handover, or reestablishment to a cell supporting the D2D function or the D2D discovery function, the apparatus further includes a fifth processing unit (not shown) to delay the discovery message transmission process; or Clear the discovery buffer and notify the upper layer to discover that the message transfer process has terminated. The specific processing is as described in Embodiment 3, and details are not described herein again.

Through the above embodiments, the processing of the discovery message can be realized, and the problems existing in the prior art are solved.

Example 8

Embodiment 8 of the present invention further provides a user equipment, including the information processing apparatus described in the foregoing embodiments. FIG. 7 is a schematic diagram showing the structure of a user equipment 700 according to an embodiment of the present invention. As shown in FIG. 7, user device 700 can include central processor 701 and memory 740; memory 740 is coupled to central processor 701. It is worth noting that the figure is exemplary; other types of structures may be used in addition to or in place of the structure to implement telecommunications functions or other functions.

In one embodiment, the functionality of device 700 can be integrated into central processor 701. The central processing unit 701 can be configured to: when the device-to-device (D2D) discovery process stored in the discovery buffer is transmitted to the bottom layer, the user equipment discards the discovery message or retains the discovery message. In the discovery buffer.

In addition, the central processing unit 701 is further configured to: establish the discovery buffer when configuring the information related to the discovery; or establish the discovery buffer when the L2 layer receives a discovery message from the upper layer.

The central processing unit 701 is further configured to: when the user equipment reselects, switches, or reestablishes to a cell that does not support the D2D function or the D2D discovery function, or when the user equipment moves to an area without network coverage, or when the discovery process is performed by the network Reject or disable, or release or empty the discovery buffer when releasing the configuration related to discovery.

The central processing unit 701 is further configured to: before the discovery message is transmitted to the bottom layer, generate a status report of the discovery buffer when the discovery buffer is not empty, the status report is used to indicate whether there is data or The exact message size.

Sending the status report to the base station to trigger the base station to allocate the discovery resource to the user equipment; or sending the status report to the discovery resource selection entity of the user equipment to trigger the discovery resource selection entity to select the discovery resource.

The central processor 701 is also configured to: save the discovery buffer in the discovery buffer after obtaining the available discovery resources The discovery message, or the discovery message saved in the discovery buffer and the discovery resource are transmitted to the underlying layer. The central processor 701 is further configured to: when the discovery buffer is empty, the user equipment notifies the discovery resource selection entity to stop the discovery resource selection process.

The central processing unit 701 is further configured to: when the discovery buffer is not empty, and receive a new discovery message from a higher layer, the user equipment replaces the received new discovery message with the discovery stored in the discovery buffer. Or; save the received new discovery message in the discovery buffer; or create a new discovery buffer and save the received new discovery message in the newly created discovery buffer.

The central processing unit 701 is further configured to: when the received new discovery message is saved in the discovery buffer, randomly select one or more of the discovery buffers after the user equipment obtains the available discovery resources Discover the message for transmission.

The central processing unit 701 is further configured to: when the user equipment reselects, switches, or reestablishes to a cell supporting the D2D function or the D2D discovery function, the user equipment delays the discovery message transmission process; or, clears the discovery buffer and The upper layer is notified that the message transmission process is terminated.

In another embodiment, the device 700 can be configured separately from the central processing unit 701. For example, the device 700 can be configured as a chip coupled to the central processing unit 701, and the functions of the device 700 can be implemented by control of the central processing unit 701.

As shown in FIG. 7, the user equipment 700 may further include: a communication module 710, an input unit 720, an audio processing unit 730, a display 760, and a power source 770. It is worth noting that the user device 700 does not necessarily have to include all of the components shown in FIG.

As shown in FIG. 7, central processor 701, sometimes referred to as a controller or operational control, can include a microprocessor or other processor device and/or logic device that receives input and controls each of user devices 700. The operation of the part.

The memory 740 can be, for example, one or more of a buffer, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory, or other suitable device. The above related information can be stored, and a program for executing the related information can be stored. And the central processing unit 701 can execute the program stored in the memory 740 to implement information storage or processing and the like. The functions of other components are similar to those of the existing ones and will not be described here. The various components of user device 700 may be implemented by special purpose hardware, firmware, software or a combination thereof without departing from the scope of the invention.

The user equipment of this embodiment can feed back the CSI process set according to the dynamic signaling sent by the base station, Feedback flexibility and reduced signaling overhead.

Example 9

Figure 8 is a block diagram showing the configuration of a communication system according to a seventh embodiment of the present invention. As shown in FIG. 8, the communication system 800 includes a user equipment 801;

The user equipment 801 is configured to discard the discovery message when the device-to-device (D2D) discovery process stored in the discovery buffer is transmitted to the bottom layer, or to keep the discovery message in the discovery buffer.

In this embodiment, the configuration of the user equipment 802 can be referred to the embodiment 4-7, and the content thereof is incorporated herein, and details are not described herein again.

In this embodiment, the communication system 800 further includes a base station 802. When the user equipment 801 sends a status report to the base station 802, the base station 802 can be triggered to allocate the discovery resource to the user equipment 801. In this way, the base station 802 is configured to receive a status report sent by the user equipment 801, and allocate a discovery resource to the user equipment according to the status report.

The embodiment of the present invention further provides a computer readable program, wherein the program causes a computer to execute the embodiment 1 or 2 or 3 in the device or user equipment when the program is executed in an information processing device or a user equipment The information processing method described.

The embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the computer to execute the information processing method of Embodiment 1 or 2 or 3 in an information processing device or a user device.

The above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software. The present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps. Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like. The present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.

The present invention has been described in connection with the specific embodiments thereof, and it should be understood by those skilled in the art that these descriptions are illustrative and not restrictive. A person skilled in the art can make various modifications and changes to the invention in accordance with the spirit and the principles of the invention, which are also within the scope of the invention.

Claims

claims

1. An information processing method, including:

After the discovery message of the device-to-device (D2D) discovery process stored in the discovery buffer is transmitted to the bottom layer, the user equipment discards the discovery message or retains the discovery message in the discovery buffer.

2. The method according to claim 1, wherein establishing the discovery buffer includes: establishing the discovery buffer when configuring discovery-related information; or establishing the discovery buffer when the L2 layer receives a discovery message from a higher layer. The discovery buffer.

3. The method according to claim 1, wherein the method further includes:

When the user equipment reselects, switches, or rebuilds to a cell that does not support D2D function or D2D discovery function, or when the user equipment moves to an area without network coverage, or is rejected or prohibited by the network during the discovery process, or when releasing and discovering When configuring, release or clear the discovery buffer.

4. The method according to claim 1, wherein before the discovery message is transmitted to the bottom layer and the discovery buffer is not empty, the method further includes:

Generates a status report of the discovery buffer indicating whether there is data or the exact message size.

5. The method according to claim 4, wherein the method further includes:

Send the status report to the base station to trigger the base station to allocate discovery resources to the user equipment; or send the status report to the discovery resource selection entity of the user equipment to trigger the discovery resource selection entity. Select Discovery Resources.

6. The method according to claim 1, wherein the method further includes:

When the discovery buffer is empty, the user equipment notifies the discovery resource selection entity to stop the discovery resource selection process.

7. The method according to claim 1, wherein the method further includes:

When the discovery buffer is not empty and a new discovery message is received from a higher layer, the user equipment replaces the discovery message stored in the discovery buffer with the new discovery message received; or,

Save the received new discovery message in the discovery buffer; or,

Create a new discovery buffer and save the new discovery messages received in the new discovery buffer.

8. The method according to claim 7, wherein the received new discovery message is saved in the When discovering the buffer, after the user equipment obtains available discovery resources, the method further includes: the user equipment randomly selects one or more discovery messages in the discovery buffer for transmission.

9. The method of claim 1, further comprising:

When the user equipment reselects, switches, or rebuilds to a cell that supports the D2D function or the D2D discovery function, the user equipment delays the discovery message transmission process; or clears the discovery buffer and notifies the higher layer that the discovery message transmission process is terminated.

10. An information processing device, including:

A first processing unit, the first processing unit is used to detect when a device stored in the discovery buffer is

After the discovery message of the (D2D) discovery process is transmitted to the bottom layer, the discovery message is discarded or the discovery message is retained in the discovery buffer.

11. The device according to claim 10, wherein the device further includes:

A buffer establishment unit, the buffer establishment unit is used to establish the discovery buffer at the L2 layer.

12. The device according to claim 11, wherein the buffer establishment unit is configured to establish the discovery buffer when configuring discovery-related information; or establish the discovery buffer when the L2 layer receives a discovery message from a higher layer. The discovery buffer is described.

13. The device according to claim 10, wherein the device further includes:

A second processing unit, the second processing unit is used to reselect, switch, or rebuild the user equipment to a cell that does not support the D2D function or the D2D discovery function, or when the user equipment moves to an area without network coverage, or when The discovery process is rejected or prohibited by the network, or the discovery buffer is released or cleared when the configuration related to discovery is released.

14. The device according to claim 10, wherein the device further includes:

A report generation unit configured to generate a status report of the discovery buffer when the discovery buffer is not empty before the discovery message is transmitted to the bottom layer. The status report is used to indicate whether there is data or exact message size.

15. The device according to claim 14, wherein the device further includes:

A triggering unit configured to send the status report to the base station to trigger the base station to allocate discovery resources to the user equipment; or to send the status report to the discovery resource selection entity of the user equipment. , to trigger the discovery resource selection entity to select the discovery resource.

16. The device according to claim 10, wherein the device further includes: A third processing unit, the third processing unit is configured to notify the discovery resource selection entity to stop the discovery resource selection process when the discovery buffer is empty.

17. The device according to claim 10, wherein the device further includes:

A fourth processing unit, the fourth processing unit is configured to replace and store the received new discovery message in the discovery buffer when the discovery buffer is not empty and a new discovery message is received from a higher layer. or, save the received new discovery message in the discovery buffer; or, create a new discovery buffer and save the received new discovery message in the newly created discovery buffer.

18. The device according to claim 10, wherein the device further includes a selection unit, the selection unit configured to: when saving the received new discovery message in the discovery buffer, the user equipment After obtaining available discovery resources, one or more discovery messages in the discovery buffer are randomly selected for transmission.

19. The device according to claim 10, the device further comprising a fifth processing unit, the fifth processing unit is configured to reselect, switch, or reestablish the user equipment to a cell that supports the D2D function or the D2D discovery function. , the user equipment delays the discovery message transmission process; or, clears the discovery buffer and notifies the higher layer that the discovery message transmission process is terminated.

20. A user equipment, comprising the device according to claim 10.