CN106211023A

CN106211023A - A kind of method, base station and terminal realizing neighbouring directly discovery

Info

Publication number: CN106211023A
Application number: CN201510243965.8A
Authority: CN
Inventors: 李大鹏; 陈琳
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-04-10
Filing date: 2015-05-13
Publication date: 2016-12-07
Also published as: WO2016161789A1

Abstract

The invention discloses a kind of method, base station and terminal realizing neighbouring directly discovery, adjacent to the transmission resource pool information directly found and be sent to terminal including base station configuration alien frequencies；The neighbouring resource pool directly found of alien frequencies that terminal uses base station to configure realizes neighbouring directly discovery.The technical scheme provided by the present invention, achieving D2D terminal utilizes non-service cell resource pool to send adjacent to directly finding message, so, reduces the load of the D2D resource pool of Serving cell, thus decrease the risk of load problem of non-uniform between network side carrier frequency, and improve the performance of D2D UE.

Description

Method, base station and terminal for realizing adjacent direct discovery

Technical Field

The present invention relates to Device-to-Device (D2D) technology, and more particularly, to a method, base station and terminal for implementing direct proximity discovery.

Background

With the development of wireless multimedia services, the demand for high data rate and user experience is increasing, and thus higher requirements are placed on the system capacity and coverage of the conventional cellular network. On the other hand, with the popularization of applications such as social networking, near-distance data sharing, local advertising, etc., the demand for people to know and communicate with people or things of interest nearby (e.g., proximity services) is increasing. Conventional base station centric cellular networks have significant limitations for high data rate and Proximity Services (ProSe) support. Against this background of demand, Device-to-Device (D2D) technology has emerged as a representative new direction in future communication technology development. The application of the D2D technology can reduce the burden of the cellular network, reduce the battery power consumption of the user equipment, increase the data rate, and improve the robustness of the network infrastructure, and well meet the requirements of the high data rate service and the proximity service.

D2D service (or referred to as ProSe service) may operate in licensed or unlicensed frequency bands, allowing multiple D2D capable user equipments, i.e., D2D user equipments (D2D UE, D2D user equipment), to perform D2D service with or without network infrastructure. D2D traffic generally includes: proximity DIRECT DISCOVERY (PROSE DIRECT DISCOVERY) technology and D2D communication technology; the proximity direct discovery technology refers to a technology for determining or determining that two or more D2D UEs are in proximity to each other (e.g., within a range in which D2D communication is possible), or for determining or determining that a first user equipment is in proximity to a second user equipment. Generally, D2D UEs may discover each other by sending or receiving discovery signals or discovery information, and in the presence of cellular network coverage, the network may assist D2D UEs in direct proximity discovery. The D2D communication technology refers to a technology in which some or all of communication data between D2D UEs may be communicated directly without passing through a network infrastructure.

The terminals in the adjacent area can bring many benefits to the terminals by using D2D communication, such as higher speed, lower delay and less power consumption, and at the same time, the radio resource utilization efficiency of the operator is greatly improved, and the Relay (Relay) mode of D2D is beneficial to the operator to improve the radio coverage; for application, new more attractive services can be developed by using the proximity information in the D2D communication process. Public Safety (Public Safety) systems may also utilize D2D technology to enable communication between terminals without wireless coverage.

The proximity Direct Discovery technique can be divided into two different ways, one is Direct Discovery (Direct Discovery) of D2D; another mode is an Evolved packet network (EPC) mode, that is, geographical location information of each terminal is stored through a core network, and a proximity direct discovery function is further provided according to the stored information.

In actual deployment, there is an area covered by multiple carriers in an overlapping manner, where some carriers are used for coverage and other carrier frequencies are used for improving throughput, so most terminals will select the carrier frequency used for coverage as a serving cell (serving cell). In this case, if these terminals need to perform the proximity direct discovery procedure, according to the prior art, the proximity direct discovery message can only be sent using the information of the resource pool of the serving cell, which tends to load the resource pool of D2D of the serving cell, thereby increasing the risk of the problem of uneven load between the network side carriers and reducing the performance of the D2D UE.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a method, a base station, and a terminal for implementing direct neighbor discovery, which can reduce the load of a D2D resource pool of a serving cell, thereby reducing the risk of uneven load between network side carriers and improving the performance of D2D UEs.

To achieve the object of the present invention, the present invention provides a method for implementing proximity direct discovery, comprising: the base station configures the information of the transmission resource pool directly discovered by the pilot frequency adjacent to the base station and transmits the information to the terminal;

the terminal realizes the adjacent direct discovery by using the pilot frequency adjacent direct discovery resource pool configured by the base station.

Optionally, the base station sends the configured sending resource pool information directly discovered by the pilot frequency neighborhood to the terminal through a radio resource control RRC message.

Optionally, the RRC message is a system broadcast message or an RRC dedicated message.

Optionally, the method further includes: and the base station and other base stations interact the transmitting resource pool information directly discovered by the pilot frequency neighborhood.

Optionally, the configuration information of the sending resource pool directly discovered by the pilot frequency neighbors is configured through a network manager or through an interface between base stations;

wherein, the interface between the base stations is an X2 interface; or the configuration information of the transmission resource pool directly discovered by the pilot frequency neighborhood is interacted by using the basic flow of the type two.

Optionally, the sending resource pool information of the inter-frequency neighbor direct discovery is configuration information of a sending resource pool of the inter-frequency neighbor direct discovery, or a sending indication that the inter-frequency neighbor direct discovery is supported.

Optionally, the sending resource pool information directly discovered by the neighboring different frequency is configuration information of the sending resource pool directly discovered by the neighboring different frequency;

the configuration information of the sending resource pool comprises: time frequency resources defined by a resource pool, and/or inter-pilot frequency synchronization time difference, and/or frequency information to which pilot frequency belongs, and Public Land Mobile Network (PLMN) list information;

the type of the sending resource pool comprises terminal autonomous resource selection or scheduling resource configuration.

Optionally, the sending resource pool information of the pilot frequency adjacent direct discovery is a sending indication that the pilot frequency supports adjacent direct discovery;

the indication that the inter-frequency supports the transmission of the neighbor direct discovery comprises: the frequency information of the transmitted pilot frequency which is directly discovered by the adjacent equipment and the PLMN list information can be supported;

the different frequency supports the type of the sending resource pool adjacent to the direct discovery to autonomously select resources for the terminal.

Optionally, the terminal is in an idle state or a connected state.

Optionally, the sending resource pool information directly discovered by the neighboring different frequency is configuration information of the sending resource pool directly discovered by the neighboring different frequency; the implementing of the neighbor direct discovery by using the pilot frequency neighbor direct discovery resource pool configured by the base station comprises:

and the terminal sends the adjacent direct discovery message by using the pilot frequency adjacent direct discovery sending resource pool according to the configuration information so as to realize the adjacent direct discovery.

the method further comprises the following steps before the adjacent direct discovery is realized by using the pilot frequency adjacent direct discovery resource pool configured by the base station: the terminal obtains the configuration information of a sending resource pool for adjacent direct discovery by listening to the broadcast message of the pilot frequency system according to the obtained sending indication that the pilot frequency supports the adjacent direct discovery;

the implementing of the neighbor direct discovery by using the pilot frequency neighbor direct discovery resource pool configured by the base station comprises: and according to the received configuration information, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

Optionally, the sending resource pool information of the inter-frequency neighbor direct discovery is a sending indication that the inter-frequency neighbor direct discovery is supported, and the sending of the inter-frequency neighbor direct discovery is not distinguished;

the method further comprises the following steps before the adjacent direct discovery is realized by using the pilot frequency adjacent direct discovery resource pool configured by the base station: the terminal sends a first adjacent direct discovery request to a base station in a connected state; the base station sends the configuration information of the sending resource pool directly discovered adjacent to the pilot frequency to the terminal;

the base station configures configuration information of a transmission resource pool directly discovered adjacent to the pilot frequency, and simultaneously further comprises: and configuring the configuration information of the sending resource pool of the service cell and sending the configuration information to the terminal.

Optionally, when the base station configures configuration information of a transmission resource pool directly discovered in the vicinity of the pilot frequency and configuration information of a transmission resource pool of a serving cell, the method further includes: and the base station configures priority information for the sending resource pool.

Optionally, the method further comprises: and the terminal selects a sending resource pool according to the obtained priority information.

Optionally, the method further comprises: and the terminal randomly selects the sending resource pool or autonomously selects the sending resource pool.

the method also comprises the following steps: the terminal sends a second adjacent direct discovery request to the base station in a connected state; the base station configures a terminal to perform pilot frequency measurement; and the terminal reports the measurement result to the base station, and when the measurement result shows that the terminal enters the coverage range of the frequency expected by the base station, the base station configures the transmission resource pool information directly found by the pilot frequency adjacent to the pilot frequency and transmits the transmission resource pool information to the terminal.

Optionally, the triggering condition for the base station to configure the terminal to perform the inter-frequency measurement is as follows: the terminal comes within the coverage of the frequency desired by the base station.

Optionally, the pilot frequency neighboring direct discovery sending resource pool information is a sending indication that the pilot frequency supports neighboring direct discovery;

the method further comprises the following steps: the base station configures pilot frequency selection indication and sends the pilot frequency selection indication to the terminal;

before the adjacent direct discovery is realized by using the pilot frequency adjacent direct discovery resource pool configured by the base station, the method further comprises the following steps:

the terminal determines the frequency of interest and the corresponding PLMN list information in the sending indication that the pilot frequency supports the direct discovery of the adjacent cells according to the obtained pilot frequency selection indication;

the terminal carries the determined interested frequency and the corresponding PLMN list information in a neighboring direct discovery request in a connection state and sends the neighboring direct discovery request to a base station;

and the base station configures the frequency for the terminal and the configuration information of the sending resource pool on the frequency according to the carrier frequency load condition and the carrier frequency which the terminal is interested in.

the terminal determines the frequency of interest in the sending instruction of the pilot frequency supporting the adjacent direct discovery according to the obtained pilot frequency selection instruction, and carries the determined frequency of interest and the list of the PLMN supported by the terminal in the adjacent direct discovery request to send to the base station;

The present invention further provides a base station, at least comprising: a first processing module, a first sending module, wherein,

the first processing module is used for configuring the sending resource pool information directly discovered by the pilot frequency adjacent to the first sending module and outputting the sending resource pool information to the first sending module;

and the first sending module is used for sending the configured sending resource pool information which is adjacent to the pilot frequency and directly discovered to the terminal.

Optionally, the system further includes a first receiving module, configured to receive a first proximity direct discovery request from a terminal and output the first proximity direct discovery request to the first processing module;

correspondingly, the first processing module is further configured to: and sending the configuration information of the transmission resource pool directly discovered by the pilot frequency adjacent to the terminal through the first transmission module.

Optionally, the first processing module is further configured to: and configuring a transmission resource pool of the service cell and transmitting the transmission resource pool to the terminal through the first transmission module.

Optionally, the first processing module is further configured to: and configuring the priority information of the sending resource pool and sending the priority information to the terminal through the first sending module.

Optionally, the first receiving module is further configured to receive a second proximity direct discovery request from the terminal and output the second proximity direct discovery request to the first processing module; receiving a measurement report from a terminal and outputting the measurement report to the first processing module;

correspondingly, the first processing module is further configured to: and configuring the terminal to carry out pilot frequency measurement, and when the received measurement result shows that the terminal enters the coverage range of the frequency expected by the base station, continuously configuring the information of the transmission resource pool directly discovered by the neighboring pilot frequency.

Optionally, the system further comprises a first receiving module; when the inter-frequency neighbor direct discovery transmission resource pool information is a transmission indication that inter-frequency supports neighbor direct discovery,

the first processing module is further configured to: configuring a pilot frequency selection indication and sending the pilot frequency selection indication to a terminal through a first sending module; configuring the frequency and the configuration information of the resource pool on the frequency for the terminal according to the carrier frequency load condition and the carrier frequency which the terminal is interested in;

correspondingly, the first receiving module is further configured to: receiving a third proximity direct discovery request from the terminal and outputting to the first processing module.

Optionally, the first processing module is further configured to: exchanging inter-frequency adjacent directly discovered transmission resource pool information with other base stations through an interactive interface;

The invention also provides a terminal, at least comprising: a second processing module, a second receiving module, wherein,

the second receiving module is used for receiving the pilot frequency adjacent directly discovered sending resource pool information from the base station and outputting the information to the second processing module;

and the second processing module is used for realizing the adjacent direct discovery by using the pilot frequency adjacent direct discovery resource pool configured by the base station.

Optionally, when the pilot frequency neighboring directly discovered transmission resource pool information is configuration information of a pilot frequency neighboring directly discovered transmission resource pool,

the second processing module is specifically configured to: and according to the configuration information, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

Optionally, when the pilot frequency neighboring direct discovery transmission resource pool information is a transmission indication that the pilot frequency supports neighboring direct discovery,

the second processing module is specifically configured to: according to the obtained sending indication that the pilot frequency supports the adjacent direct discovery, the configuration information of the sending resource pool of the adjacent direct discovery is obtained by listening to the broadcast message of the pilot frequency system; and according to the received configuration information, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

Optionally, when the sending resource pool information of the inter-frequency neighbor direct discovery is a sending indication that the inter-frequency supports neighbor direct discovery and is not distinguished as sending that the inter-frequency supports neighbor direct discovery, the method further includes a second sending module, configured to send a first neighbor direct discovery request to the base station after the terminal enters a connected state.

Optionally, the second receiving module is further configured to receive a sending resource pool of a serving cell from a base station and output the sending resource pool to the second processing module.

Optionally, the second processing module is further configured to: the pool of transmission resources is selected randomly or autonomously.

Optionally, the second receiving module is further configured to: receiving priority information from the base station; correspondingly, the second processing module is further configured to: and selecting a sending resource pool according to the priority information.

Optionally, the second sending module is further configured to: sending a first adjacent direct discovery request to a base station after a terminal enters a connected state;

correspondingly, the second receiving module is further configured to: receiving pilot frequency measurement from a base station and outputting the pilot frequency measurement to a second processing module; the second processing module is further configured to: and performing pilot frequency measurement and reporting a measurement report to the base station.

Optionally, the second receiving module is further configured to: receiving pilot frequency selection indication from a base station and outputting the pilot frequency selection indication to the second processing module;

correspondingly, the second processing module is further configured to: determining frequencies of interest of the user and corresponding PLMN list information in a sending indication that the pilot frequency supports adjacent direct discovery; and after the terminal enters a connection state, the determined interested frequency and the corresponding PLMN list information are carried in a third adjacent direct discovery request and are sent to the base station through a second sending module.

the second receiving module is further configured to: determining a frequency of interest per se in the transmitted indication that the inter-frequency supports proximity direct discovery; and carrying the determined interested frequency and the list of the PLMN supported by the terminal in a neighboring direct discovery request and sending the neighboring direct discovery request to the base station.

Compared with the prior art, the technical scheme of the application comprises that the base station configures the information of the transmission resource pool directly discovered by the pilot frequency adjacent to the base station and transmits the information to the terminal; the terminal realizes the adjacent direct discovery by using the pilot frequency adjacent direct discovery resource pool configured by the base station. By the technical scheme provided by the invention, the D2D terminal sends the adjacent direct discovery message by using the non-service cell resource pool, so that the load of the D2D resource pool of the service cell is reduced, the risk of uneven load between network side carrier frequencies is reduced, and the performance of the D2DUE is improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a flow chart of a method of the present invention for implementing proximity direct discovery;

FIG. 2 is a schematic diagram of a base station according to the present invention;

FIG. 3 is a schematic diagram of the structure of the terminal according to the present invention;

FIG. 4 is a flowchart illustrating a first embodiment of the present invention for implementing proximity direct discovery;

FIG. 5 is a flowchart illustrating a second embodiment of the present invention for implementing proximity direct discovery;

FIG. 6 is a flow chart illustrating a third and a fourth embodiment of the present invention for implementing proximity direct discovery;

FIG. 7 is a flowchart illustrating a fifth embodiment of the present invention for implementing proximity direct discovery;

FIG. 8 is a flowchart illustrating a sixth embodiment of the present invention for implementing proximity direct discovery;

fig. 9 is a flowchart illustrating a seventh embodiment of the present invention for implementing proximity direct discovery.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Fig. 1 is a flowchart of a method for implementing proximity direct discovery according to the present invention, as shown in fig. 1, including:

step 100: and the base station configures the transmission resource pool information directly discovered by the pilot frequency adjacent to the terminal and transmits the transmission resource pool information to the terminal.

In this step, the base station may send the configured sending Resource pool information directly found by the pilot frequency neighbor to the terminal through a Radio Resource Control (RRC) message. The RRC message may be a system broadcast message or an RRC dedicated message.

The transmission resource pool information of the inter-frequency neighbor direct discovery in this step may be configuration information of the transmission resource pool of the inter-frequency neighbor direct discovery, or a transmission indication that the inter-frequency neighbor direct discovery is supported. Wherein,

the configuration information of the transmission resource pool includes but is not limited to: time-frequency resources defined by the resource pool, and/or inter-pilot frequency synchronization time difference, and/or frequency information to which the pilot frequency belongs, and Public Land Mobile Network (PLMN) list information, and the like. At this time, the type of the transmission Resource pool includes terminal Autonomous Resource Selection (UE Autonomous Resource Selection) or Scheduled Resource Allocation (Scheduled Resource Allocation).

The indication that the inter-frequency supports the transmission of the neighbor direct discovery comprises: frequency information to which the pilot frequency of the neighbor direct discovery transmission belongs, and PLMN list information may be supported. At this time, the inter-frequency supports the type of the transmission resource pool adjacent to the direct discovery to autonomously select resources for the terminal.

Wherein, the terminal is in an idle state or a connection state.

Step 101: the terminal realizes the adjacent direct discovery by using the pilot frequency adjacent direct discovery resource pool configured by the base station.

When the inter-frequency neighbor directly discovered transmission resource pool information is configuration information of the inter-frequency neighbor directly discovered transmission resource pool,

the method specifically comprises the following steps: and the terminal transmits the adjacent direct discovery message by using the pilot frequency adjacent direct discovery transmission resource pool according to the configuration information so as to realize the adjacent direct discovery.

When the inter-frequency neighbor direct discovery transmission resource pool information is a transmission indication that the inter-frequency supports neighbor direct discovery,

the method also comprises the following steps: and the terminal acquires the configuration information of the transmission resource pool for the adjacent direct discovery by listening to the broadcast message of the pilot frequency system according to the acquired transmission indication that the pilot frequency supports the adjacent direct discovery. The method specifically comprises the following steps: and according to the configuration information received by the terminal, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

When the inter-frequency neighbor direct discovery transmission resource pool information is a transmission indication that the inter-frequency supports neighbor direct discovery, but the base station does not explicitly distinguish whether the inter-frequency supports neighbor direct discovery transmission (i.e., does not distinguish whether the serving cell supports neighbor direct discovery transmission or the inter-frequency cell supports neighbor direct discovery transmission),

the method also comprises the following steps: a terminal entering a connected state sends a first adjacent direct discovery request to a base station; and the base station sends the configuration information of the transmission resource pool directly discovered by the pilot frequency adjacent to the terminal. For example, the terminal may carry the proximity direct discovery request in a channel associated user Information (Side link UE Information) message of the RRC message. The method specifically comprises the following steps: and according to the received configuration information, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

By the technical scheme provided by the invention, the D2D terminal sends the adjacent direct discovery message by using the non-service cell resource pool, so that the load of the D2D resource pool of the service cell is reduced, the risk of uneven load between carrier frequencies at the network side is reduced, and the performance of the D2D UE is improved.

Further, while the base station configures the configuration information of the transmission resource pool directly discovered adjacent to the pilot frequency, the method of the present invention further comprises: and configuring a sending resource pool of the service cell and sending the sending resource pool to the terminal. The specific implementation is well known to those skilled in the art, and is not used to limit the scope of the present invention, and will not be described herein. Therefore, when the terminal detects that the pilot frequency resource pool is unauthorized and/or the PLMN selection fails, the terminal can also use the transmission resource pool of the serving cell configured by the base station to realize the direct neighbor discovery, thereby further ensuring the smooth realization of the direct neighbor discovery.

The base station can simultaneously carry the configuration information of the transmission resource pool of the serving cell in a system broadcast message or an RRC dedicated message and transmit the system broadcast message or the RRC dedicated message to the terminal. At this time, the process of the present invention,

step 101 further comprises: the terminal may randomly or autonomously select a transmission resource pool.

Further, when the base station configures configuration information of a transmission resource pool directly discovered in the vicinity of the inter-frequency and configuration information of a transmission resource pool of the serving cell, the method may further include: the base station also configures and sends the priority information of the resource pool to the terminal. At this time, the process of the present invention,

step 101 further comprises: and the terminal selects a sending resource pool according to the priority information.

Here, the transmission resource pool includes: the pilot frequency is adjacent to a directly discovered transmission resource pool, namely a pilot frequency resource pool, and a transmission resource pool of a serving cell.

Wherein the priority information is used for indicating information indicating a transmission resource pool preferentially selected by the terminal. The priority information may include priorities of the pilot frequency resource pool and the transmission resource pool of the serving cell, or may include priority information of resource blocks included in the pilot frequency resource pool and the transmission resource pool of the serving cell.

Further, the base station may also design different priorities for different terminals, for example, the terminal may select different sending resource pools according to different home PLMNs, or whether the terminal supports multiple radio frequency devices, or whether the terminal is a public safety terminal or a non-public safety terminal. For example, a base station wants a public safety terminal to preferentially select a transmission resource pool of a serving cell, or wants a terminal with two or more radio frequency devices to preferentially select a transmission resource pool of a pilot frequency, the priority information can be embodied, and after the terminal reads the priority information, the terminal selects different transmission resource pools according to information such as a PLMN, radio frequency devices, public safety attributes and the like of the terminal.

Further, the air conditioner is provided with a fan,

the transmission resource pool information of the inter-frequency neighbor direct discovery in step 100 is configuration information of the transmission resource pool of the inter-frequency neighbor direct discovery. Before step 100, the method further comprises: the terminal sends a second adjacent direct discovery request to the base station in a connected state; the base station configures the terminal to perform pilot frequency measurement, for example, the base station expects the terminal to send a neighboring direct discovery message on a certain pilot frequency resource according to the load condition between carrier frequencies; and the terminal reports the measurement result to the base station. When the measurement result shows that the terminal enters the coverage of the frequency desired by the base station, step 100 is performed.

The triggering conditions for the base station configuration terminal to perform pilot frequency measurement are as follows: the terminal comes within the coverage of the frequency desired by the base station. Such as: when or before the base station configures the pilot frequency measurement for the terminal, the base station configures a sending resource pool of a service cell for the terminal; the following steps are repeated: after the pilot frequency measurement is triggered and reported, the base station configures configuration information of a sending resource pool discovered by the pilot frequency for the terminal; for another example: and after the terminal checks the authorization of the pilot frequency resource pool and/or the PLMN selection is successful, covering the sending resource pool of the service cell.

Further, the air conditioner is provided with a fan,

the transmission resource pool information of the inter-frequency neighbor direct discovery in step 100 is a transmission indication that the inter-frequency supports neighbor direct discovery. Step 100 further comprises: the base station configures pilot frequency selection indication and sends the pilot frequency selection indication to the terminal; at this time, the process of the present invention,

the method also comprises the following steps between the step 100 and the step 101: the terminal determines the frequency of interest and the corresponding PLMN list information in the sending indication that the pilot frequency supports the direct discovery of the adjacent cells according to the pilot frequency selection indication; the terminal carries the determined interested frequency and the corresponding PLMN list information in a neighboring direct discovery request in a connection state and sends the neighboring direct discovery request to a base station; and the base station configures the frequency for the terminal and the configuration information of the sending resource pool on the frequency according to the carrier frequency load condition and the carrier frequency which the terminal is interested in. Or,

between step 100 and step 101, further comprising: the terminal determines the frequency of interest of the terminal in the sending instruction of the pilot frequency supporting the adjacent direct discovery according to the pilot frequency selection instruction, and carries the determined frequency of interest and the list of the PLMN supported by the terminal in the adjacent direct discovery request to send to the base station; and the base station configures the frequency for the terminal and the configuration information of the sending resource pool on the frequency according to the carrier frequency load condition and the carrier frequency which the terminal is interested in.

In order to obtain the configuration information of the neighboring cell base station, the method of the present invention further comprises:

and interacting the sending resource pool information directly discovered by the adjacent pilot frequency among the base stations.

The inter-frequency neighbor direct discovery transmission resource pool information may be configuration information of the inter-frequency neighbor direct discovery transmission resource pool or a transmission indication that the inter-frequency neighbor direct discovery is supported.

The configuration information of the transmission resource pool for pilot frequency adjacent direct discovery includes but is not limited to: time frequency resources defined by the resource pool, and/or inter-pilot frequency synchronization time difference, and/or frequency information to which the pilot frequency belongs, and PLMN list information.

The indication that the inter-frequency supports the transmission of the neighbor direct discovery comprises: the carrier frequency information to which the transmitted pilot frequency directly discovered by the neighbor is attributed and the PLMN list information can be supported.

Wherein,

the configuration information of the sending resource pool directly discovered by the pilot frequency adjacent can be configured through a network manager or through an interface between base stations, wherein the interface between the base stations can be an X2 interface, for example; or more preferably, the configuration information of the transmission resource pool of the inter-frequency adjacent direct discovery can be exchanged by using a basic flow (Class 2Elementary Procedures) of type two.

Fig. 2 is a schematic structural diagram of a base station according to the present invention, as shown in fig. 2, the base station at least includes: a first processing module, a first sending module, wherein,

The base station also comprises a first receiving module, which is used for receiving the first adjacent direct discovery request from the terminal and outputting the request to the first processing module; correspondingly, the first processing module is further configured to: and sending the configuration information of the transmission resource pool directly discovered by the pilot frequency adjacent to the terminal through the first transmission module.

Further, the air conditioner is provided with a fan,

the first processing module is further configured to: and configuring a transmission resource pool of the service cell and transmitting the transmission resource pool to the terminal through the first transmission module.

Further, the air conditioner is provided with a fan,

the first processing module is further configured to: and configuring priority information of the sending resource pool and sending the priority information to the terminal through the first sending module.

Further, the air conditioner is provided with a fan,

the first receiving module is further configured to receive a second proximity direct discovery request from the terminal and output the second proximity direct discovery request to the first processing module; correspondingly, the first processing module is further configured to: configuring a terminal to carry out pilot frequency measurement, and when a received measurement result shows that the terminal enters a frequency coverage range expected by a base station, continuously configuring transmission resource pool information directly discovered by neighboring pilot frequencies; the first receiving module is further configured to: and receiving the measurement report from the terminal and outputting the measurement report to the first processing module.

Further, the air conditioner is provided with a fan,

when the transmission resource pool information of the inter-frequency neighbor direct discovery is a transmission indication that the inter-frequency supports neighbor direct discovery, the first processing module is further configured to: configuring a pilot frequency selection indication and sending the pilot frequency selection indication to a terminal through a first sending module; configuring the frequency and the configuration information of the resource pool on the frequency for the terminal according to the carrier frequency load condition and the carrier frequency which the terminal is interested in; correspondingly, the first receiving module is further configured to: and receiving a third adjacent direct discovery request from the terminal and outputting the third adjacent direct discovery request to the first processing module.

Fig. 3 is a schematic view of a composition structure of the terminal of the present invention, as shown in fig. 2, which at least includes: a second processing module, a second receiving module, wherein,

When the information of the transmission resource pool directly discovered in the vicinity of the pilot frequency is configuration information of the transmission resource pool directly discovered in the vicinity of the pilot frequency, the second processing module is specifically configured to: and according to the configuration information, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

When the sending resource pool information of the inter-frequency neighbor direct discovery is a sending indication that the inter-frequency neighbor direct discovery is supported, the second processing module is specifically configured to: according to the obtained sending indication that the pilot frequency supports the adjacent direct discovery, the configuration information of the sending resource pool of the adjacent direct discovery is obtained by listening to the broadcast message of the pilot frequency system; and according to the received configuration information, transmitting a neighbor direct discovery message by using a transmission resource pool of pilot frequency neighbor direct discovery to realize neighbor direct discovery.

When the transmission resource pool information of the inter-frequency neighbor direct discovery is a transmission indication that the inter-frequency neighbor direct discovery is supported, but the base station does not explicitly distinguish whether the inter-frequency neighbor direct discovery is supported (i.e., whether the serving cell supports the transmission of the neighbor direct discovery or the inter-frequency cell supports the transmission of the neighbor direct discovery), the terminal further includes a second transmission module,

and the second sending module is used for sending the first adjacent direct discovery request to the base station after the terminal enters the connection state.

Further, the air conditioner is provided with a fan,

and the second receiving module is further configured to receive the sending resource pool of the serving cell from the base station and output the sending resource pool to the second processing module. Correspondingly, the second processing module is further configured to: the resource pool is selected randomly or autonomously.

Further, the second receiving module is further configured to: receiving priority information from a base station; correspondingly, the second processing module is further configured to: and selecting a sending resource pool according to the priority information.

Further, the air conditioner is provided with a fan,

the second sending module is further configured to: sending a first adjacent direct discovery request to a base station after a terminal enters a connected state; correspondingly, the second receiving module is further configured to: receiving pilot frequency measurement from a base station and outputting the pilot frequency measurement to a second processing module; the second processing module is further configured to: and performing pilot frequency measurement and reporting a measurement report to the base station.

Further, the air conditioner is provided with a fan,

the second receiving module is further configured to: receiving pilot frequency selection indication from a base station and outputting the pilot frequency selection indication to a second processing module; accordingly, the number of the first and second electrodes,

the second processing module is further configured to: determining frequencies of interest of the user and corresponding PLMN list information in a sending indication that the pilot frequency supports adjacent direct discovery; and after the terminal enters a connection state, the determined interested frequency and the corresponding PLMN list information are carried in a third adjacent direct discovery request and are sent to the base station through a second sending module. Or,

Further, the air conditioner is provided with a fan,

the first processing module is further configured to: exchanging inter-frequency adjacent directly discovered transmission resource pool information with other base stations via an interactive interface.

The transmission resource pool information of the inter-frequency neighbor direct discovery may be configuration information of the transmission resource pool of the inter-frequency neighbor direct discovery, or a transmission indication that the inter-frequency neighbor direct discovery is supported.

Wherein, the interactive interface is an X2 interface, or uses the basic flow interaction of type two.

The technical scheme provided by the invention is described in detail by combining specific embodiments.

Fig. 4 is a flowchart illustrating a first embodiment of implementing neighbor direct discovery according to the present invention, where the first embodiment provides an inter-frequency configuration for idle (idle) UEs for a base station, and a scenario for a terminal to use directly. As shown in fig. 4, the method specifically includes the following steps:

step 400: the base station carries the configuration information of the transmission resource pool directly discovered adjacent to the pilot frequency in a system broadcast message and transmits the system broadcast message to the terminal.

In the first embodiment, it is assumed that the type of the transmission resource pool directly discovered by the inter-frequency proximity autonomously selects resources for the terminal.

Through network management configuration or through an interface between base stations, such as an X2 interface, a base station, such as an eNB, obtains configuration information of a transmission resource pool on other carrier frequencies, including time-frequency resources defined by the resource pool, and/or inter-pilot frequency synchronization time difference, and/or frequency information to which the pilot frequency belongs, PLMN list information, and the like.

Step 401: the terminal transmits the neighbor direct discovery message using the received inter-frequency neighbor direct discovery transmission resource pool.

When the terminal is in idle state, if receiving the configuration information of the transmission resource pool of pilot frequency adjacent direct discovery in the system broadcast message, the type at this time is that the terminal autonomously selects the resource type, therefore, the terminal can use the received transmission resource pool on the carrier frequency to transmit the adjacent direct discovery message without changing the service cell.

Fig. 5 is a flowchart illustrating a second embodiment of implementing direct neighbor discovery according to the present invention, where the second embodiment provides a transmission instruction that a base station supports direct neighbor discovery in pilot frequency for an idle UE, and a terminal obtains configuration information of a transmission resource pool after reading a pilot frequency SIB in an idle state, and the specific implementation includes the following steps:

step 500: and the base station carries the transmission indication that the pilot frequency supports the direct neighbor discovery in a system broadcast message and transmits the system broadcast message to the terminal.

In the second embodiment, it is assumed that the type of the transmission resource pool directly discovered by the inter-frequency proximity autonomously selects resources for the terminal.

Through network management configuration or through an interface between base stations, a base station such as an eNB obtains transmission information that can support adjacent direct discovery on other carrier frequencies, including frequency information to which a pilot frequency that can support adjacent direct discovery transmission belongs, and PLMN list information.

Step 501: and the terminal acquires the configuration information of the transmission resource pool for the adjacent direct discovery by listening to the broadcast message of the pilot frequency system according to the received transmission indication that the pilot frequency supports the adjacent direct discovery.

In this step, the terminal may actively receive the pilot system broadcast message according to the received pilot supporting the neighboring direct discovery in the idle state of the serving cell, and obtain the configuration information of the pilot neighboring direct discovery transmitting resource pool.

Step 502: and the terminal transmits the adjacent direct discovery message by using the obtained pilot frequency adjacent direct discovery transmission resource pool.

When the terminal is in idle state, if receiving the configuration information of the sending resource pool of pilot frequency adjacent direct discovery in the system broadcast message, the type at this time is that the terminal autonomously selects the resource type, therefore, the terminal can use the obtained sending resource pool on the carrier frequency to send the adjacent direct discovery message without changing the service cell.

Fig. 6 is a schematic flowchart of a third embodiment and a fourth embodiment of implementing adjacent direct discovery in the present invention, where the third embodiment is a scenario in which an idle UE is guided to enter a connected state, and a base station directly configures configuration information of a resource pool in a dedicated signaling, and as shown in fig. 6, the implementation specifically includes the following steps:

step 600: and the base station carries the transmission indication that the pilot frequency supports the direct neighbor discovery in a system broadcast message and transmits the system broadcast message to the terminal.

In this embodiment, it is assumed that the base station does not distinguish whether the serving cell or the inter-frequency cell supports transmission of the neighbor direct discovery in the broadcast. For example, a base station such as an eNB may indicate in a system broadcast message 19(SIB19) that it supports neighbor direct discovery, but does not provide configuration information for the resource pool.

Step 601: the terminal enters a connected state and sends a neighbor direct discovery request to the base station.

After the terminal receives the sending instruction supporting the proximity direct discovery in the system broadcast message, if the terminal needs to send a proximity direct discovery request (for example, if software at a higher layer of the terminal needs to transmit the proximity discovery request, the terminal is triggered), the terminal can actively enter a connected state.

The terminal can carry the proximity direct discovery request in the Side link UE Information message of the RRC message.

Step 602: and the base station receives the adjacent direct discovery request, carries the configuration information of the transmission resource pool of the pilot frequency adjacent direct discovery in a configuration message and transmits the configuration message to the terminal.

In this step, the base station can send the configuration information of the direct sending resource pool adjacent to the same frequency and/or different frequency to the terminal according to the load condition between the carrier frequencies;

further, the base station may also preferentially select configuration information of a suitable transmission resource pool to transmit to the terminal according to its own arrangement, for example, a transmission resource pool with a heavy load is placed at the front end of the list, and a transmission resource pool with a light load is placed at the rear end of the list, so that the terminal selects the transmission resource pools according to the order of the list.

In this embodiment, the type of the sending resource pool includes terminal autonomous resource selection or scheduling resource configuration.

The configuration message in this step may be an RRC connection reconfiguration (RRC connection reconfiguration) message, for example, an additional field is used to indicate a transmission resource pool for inter-frequency neighbor direct discovery. Meanwhile, the embodiment may further include: the discovered transmission resource pool of the serving cell may also be simultaneously carried in a configuration message and transmitted to the terminal.

Step 603: the terminal transmits a neighbor direct discovery request using the obtained transmission resource pool for neighbor direct discovery.

In this step, when the terminal is in the connected state, the method further includes: the base station configured neighboring direct discovery resource pool is checked, and authorization and/or whether the PLMN is allowed to use is checked. If the high-priority sending resource pool allocated by the base station for the terminal is not allowed to be used, the terminal continues to check the second-priority resource pool. After the selection is successful, the terminal can use the transmission resource pool on the selected carrier frequency to transmit the adjacent direct discovery message without changing the service cell.

Still referring to fig. 6, the fourth embodiment is to guide an idle UE to enter a connected state, and a base station guides a terminal to read a scenario of an inter-frequency SIB, which is different from the third embodiment:

in step 602, in this embodiment, the base station determines that it needs to transmit on the pilot frequency according to the inter-carrier frequency load condition, and configures a transmission instruction that the pilot frequency supports direct neighbor discovery to the terminal;

through network management configuration or through an interface between base stations, a base station such as an eNB obtains transmission information that can support adjacent direct discovery on other carrier frequencies, including frequency information to which a pilot frequency that can support adjacent direct discovery is attributed and PLMN list information.

Further, the base station may also configure the local carrier frequency, i.e. the sending resource pool discovered by the serving cell. Therefore, when the terminal cannot use the pilot frequency resource pool due to PLMN selection failure or other reasons, the resource pool of the serving cell can be used for transmitting the adjacent direct discovery message.

Unlike the third embodiment, the type of the inter-frequency resource pool can only be an autonomous resource option at this time.

However, the type of the transmission resource pool discovered by the serving cell may include terminal autonomous resource selection, or scheduling resource configuration.

In step 603, the specific implementation of this embodiment is: when the terminal is in a connected state, checking whether the pilot frequency supports authorization and/or PLMN in a sending instruction of adjacent direct discovery, and/or whether the PLMN is allowed to be used, if not, checking whether a base station is also configured with a resource pool of a service cell; if the authorization and/or PLMN check are passed, the terminal reads the configuration information of a sending resource pool in the system broadcast resource information on the pilot frequency in a connection state;

the terminal may then transmit the neighbor direct discovery message using the obtained pool of transmission resources on the carrier frequency without changing the serving cell.

Fig. 7 is a schematic flowchart of a fifth embodiment for implementing proximity direct discovery in the present invention, where in the fifth embodiment, under an optimized condition, for example, in some scenarios such as CA, a base station requires a terminal to perform inter-frequency measurement, and only starts transmission when entering an inter-frequency range, as shown in fig. 7, the fifth embodiment specifically includes:

step 700: the terminal transmits a neighbor direct discovery request to the base station in a connected state.

Step 701: and the base station configures the terminal to perform pilot frequency measurement.

The base station can hope that the terminal sends the discovery message on a certain pilot frequency resource according to the load condition between the carrier frequencies; the base station configures the pilot frequency measurement of the frequency for the terminal, and the triggering conditions are as follows: whether the terminal comes within the coverage of the frequency desired by the base station.

Preferably, when the base station configures the discovery resource of the serving cell for the terminal, the base station may directly use the resource, that is, when the base station configures the terminal to perform measurement, the base station may also configure the discovered transmission resource of the serving cell, so that once the terminal receives the configuration, the terminal may also simultaneously use the discovered transmission resource of the serving cell configured by the base station while starting measurement;

step 702: and the terminal reports the measurement result, and the base station configures and sends the resource pool configuration through the configuration message.

When the terminal enters the coverage range of a certain frequency expected by the base station, the base station triggers the measurement report, and after receiving the measurement report, the base station sends the configuration information of the sending resource pool directly discovered by the adjacent pilot frequency to the terminal.

In this embodiment, the type of the resource pool includes terminal autonomous resource selection or scheduling resource configuration.

The message for reporting the measurement result may use an RRC measurement report message.

The configuration message may be an RRC Connection Reconfiguration message, such as a newly added field for indicating a transmission resource pool for inter-frequency neighbor direct discovery. Meanwhile, the embodiment may further include: the discovered transmission resource pool of the serving cell may also be simultaneously carried in a configuration message and transmitted to the terminal. The configuration message may also be a new RRC message.

Step 703: the terminal transmits the neighbor direct discovery message using the obtained transmission resource pool for neighbor direct discovery.

In this step, when the terminal is in the connected state, the method further includes: the base station configured neighboring direct discovery resource pool is checked, and authorization and/or whether the PLMN is allowed to use is checked. For example, in step 702, the resource pool allocated by the base station to the terminal is not allowed to be used, and then the terminal continues to use the resource pool of the serving cell configured in step 701; if the resource pool in step 702 is available, the terminal deletes the resource pool information configured in step 701 and changes to the resource pool configured in step 702.

After the selection is successful, the terminal can use the transmission resource pool on the selected carrier frequency to transmit the adjacent direct discovery message without changing the service cell.

Fig. 8 is a flowchart illustrating a sixth embodiment of implementing direct neighbor discovery according to the present invention, where in the sixth embodiment, a scenario that a terminal may report an interested frequency to a base station by broadcasting an inter-frequency selection indication is shown in fig. 8, and the specific implementation includes the following steps:

step 800: and the base station carries the transmission indication and pilot frequency selection indication which support adjacent direct discovery by the pilot frequency in a system broadcast message and transmits the system broadcast message to the terminal.

The transmission indication that the pilot frequency supports the adjacent direct discovery comprises frequency information and PLMN list information to which the pilot frequency capable of supporting the adjacent direct discovery transmission belongs;

the pilot frequency selection indication enables the terminal not to directly read the pilot frequency system broadcast message, but to select the frequency under the PLMN of interest per se according to the frequency and the PLMN information in the transmission indication of the pilot frequency support adjacent direct discovery.

Step 801: the terminal transmits a neighbor direct discovery request to the base station in a connected state.

The method comprises the following steps: and the terminal determines the interested frequency and the corresponding PLMN list information in the sending indication that the pilot frequency supports the direct discovery of the adjacent cells according to the pilot frequency selection indication. And carrying the determined interested frequency and the corresponding PLMN list information in a neighboring direct discovery request and sending the neighboring direct discovery request to a base station. Here, the neighbor direct discovery request may be carried in a Side link UE Information message of the RRC message.

Step 802: and the base station configures the configuration information of the sending resource pool for the terminal through the configuration message.

The method comprises the following steps: and the base station configures the frequency and a sending resource pool on the frequency for the terminal according to the carrier frequency load condition and the interested carrier frequency reported by the terminal. The type of the sending resource pool comprises terminal autonomous resource selection or scheduling resource configuration.

Further, the method also comprises the following steps: and the base station simultaneously configures the resource pool of the service cell for the terminal.

Step 803: the terminal transmits the neighbor direct discovery message using the obtained transmission resource pool for neighbor direct discovery.

In this step, when the terminal is in the connected state, the method further includes: the base station configured neighboring direct discovery resource pool is checked, and authorization and/or whether the PLMN is allowed to use is checked. For example, in step 802, the base station allocates the pilot frequency resource pool to the terminal, which is not allowed to be used, then the terminal continues to use the resource pool of the serving cell configured in step 801; if the resource pool in step 802 is available, the terminal uses the inter-frequency resource pool.

Fig. 9 is a flowchart illustrating a seventh embodiment of implementing direct neighbor discovery according to the present invention, where in the seventh embodiment, a scenario is shown in fig. 9 where a terminal may report a list of PLMNs supported by the terminal to a base station by broadcasting an inter-frequency selection indication, and the specific implementation includes the following steps:

step 900: and the base station carries the transmission indication and pilot frequency selection indication which support adjacent direct discovery by the pilot frequency in a system broadcast message and transmits the system broadcast message to the terminal.

Step 901: the terminal provides a list of PLMNs supported by the terminal while transmitting a neighbor direct discovery request to the base station in a connected state.

The method comprises the following steps: the terminal already acquires the list of the PLMN supported by the terminal before the process, and the terminal carries the information in the direct neighbor discovery request and sends the request to the base station. Here, the neighbor direct discovery request may be carried in a Side link UE Information message of the RRC message.

Step 902: and the base station configures the configuration information of the sending resource pool for the terminal through the configuration message.

The method comprises the following steps: and the base station configures the frequency and a sending resource pool on the frequency for the terminal according to the carrier frequency load condition and the list of the PLMN supported by the terminal reported by the terminal. The type of the sending resource pool comprises terminal autonomous resource selection or scheduling resource configuration.

Step 903: the terminal transmits the neighbor direct discovery message using the obtained transmission resource pool for neighbor direct discovery.

In this step, when the terminal is in the connected state, the method further includes: the base station configured neighboring direct discovery resource pool is checked, and authorization and/or whether the PLMN is allowed to use is checked. For example, in step 902, the pilot frequency resource pool allocated by the base station to the terminal is not allowed to be used, then the terminal continues to use the resource pool of the serving cell configured in step 901; if the resource pool in step 902 is available, the terminal uses the inter-frequency resource pool.

On the basis of the first embodiment shown in fig. 4, the present invention further provides an eighth embodiment, where the eighth embodiment provides an inter-frequency configuration and a serving cell resource pool configuration for an idle (idle) UE for a base station, and a scenario directly used by a terminal, which is shown in fig. 4, specifically includes:

in step 400, the base station will carry the configuration information of the sending resource pool directly discovered in the vicinity of the pilot frequency and the configuration information of the serving cell resource pool in the system broadcast message and send the system broadcast message to the terminal; and the base station simultaneously configures the priority information of the transmission resource pool (here, the transmission resource pool includes a transmission resource pool directly discovered by the inter-frequency neighborhood, i.e. an inter-frequency resource pool, and a transmission resource pool of the serving cell, i.e. a serving cell resource pool).

In the eighth embodiment, it is assumed that the type of the transmission resource pool directly discovered by the inter-frequency proximity autonomously selects resources for the terminal.

Wherein the priority information is used for indicating information indicating that the terminal preferentially selects the transmission resource pool. The priority information may include the priority of the inter-frequency resource pool and the resource pool of the serving cell, and may also include the priority information of the resource blocks included in the inter-frequency resource pool and the resource pool of the serving cell.

Further, the base station may also design different priorities for different terminals, for example, the terminal may select different resource pools according to different home PLMNs, whether the terminal supports multiple radio frequency devices, whether the terminal is a public safety terminal or a non-public safety terminal, and the like. For example, a base station may prefer a resource pool of a local cell for a terminal desiring public security, or prefer a different-frequency resource pool for a terminal desiring two or more radio frequency devices, which may be embodied in priority information, and after reading the priority information, the terminal may select different sending resource pools according to information such as PLMN, radio frequency device, public security attribute, and the like of the terminal.

In step 401, the terminal may select a transmission resource pool according to the priority information and transmit the proximity direct discovery message using the transmission resource pool.

When the terminal is in an idle state, if the configuration information of the transmission resource pool directly discovered by the pilot frequency adjacent in the system broadcast message, the configuration information of the transmission resource pool of the serving cell and the priority information of the resource pool can be received at the same time, the terminal can preferentially select the transmission resource pool suitable for the terminal according to the priority information configured by the base station.

After the terminal reads the priority information, different sending resource pools can be further selected according to the information of the PLMN, the radio frequency equipment, the public safety attribute and the like of the terminal.

The type at this time is that the terminal autonomously selects a resource type, and thus, the terminal can transmit the neighbor direct discovery message using a received transmission resource pool on a carrier frequency without changing a serving cell.

On the basis of the first embodiment shown in fig. 4, the present invention further provides a ninth embodiment, where the ninth embodiment provides, for an idle (idle) UE, an inter-frequency configuration and a serving cell resource pool configuration for a base station, and a scenario in which a terminal randomly uses a resource pool, and with reference to fig. 4, the scenario specifically includes:

in step 400, the base station carries the configuration information of the transmission resource pool directly discovered in the vicinity of the pilot frequency and the configuration information of the resource pool of the serving cell in a system broadcast message and transmits the system broadcast message to the terminal. The present embodiment is different from the eighth embodiment in that: the base station is not configured with priority information of the transmission resource pool.

In the ninth embodiment, it is assumed that the type of the transmission resource pool directly discovered by the inter-frequency proximity autonomously selects resources for the terminal.

In step 401, the terminal randomly or autonomously selects a transmission resource pool and transmits a proximity direct discovery message using the transmission resource pool.

When the terminal is in an idle state, if the configuration information of the sending resource pool directly discovered by the pilot frequency adjacent in the system broadcast message and the configuration information of the resource pool of the cell can be received at the same time, but the priority information indicating the priority of the resource pool is not received, the terminal can randomly select the resource pool or autonomously select the sending resource pool. Wherein,

the autonomous selection resource pool can be selected by referring to the information of PLMN information, radio frequency equipment, public safety attribute, historical selection and the like to which the terminal belongs. Such as: the terminal has a plurality of radio frequency devices, and the pilot frequency resource pool can be used independently and preferentially; the following steps are repeated: the terminal has the attribute of public safety, and can autonomously select the sending resource pool of the service cell.

On the basis of the embodiment shown in fig. 6, the present invention further provides a tenth embodiment, where the tenth embodiment is a scenario in which a base station configures configuration information of a pilot frequency resource pool and configuration information of a serving cell resource pool in a dedicated signaling at the same time, and with reference to fig. 6, the difference between the present embodiment and the third embodiment is that:

in step 602, in this embodiment, the base station may configure the inter-frequency resource pool and the serving cell resource pool at the same time. The base station can also configure the priority information of the transmission resource pool at the same time.

Further, the base station may also design different priorities for different terminals, for example, the terminal may select different sending resource pools according to different home PLMNs, or whether the terminal supports multiple radio frequency devices, or whether the terminal is a public safety terminal or a non-public safety terminal. For example, a base station may prefer a resource pool of a local cell for a terminal desiring public security, or prefer a different-frequency resource pool for a terminal desiring two or more radio frequency devices, which may be embodied in priority information, and after reading the priority information, the terminal may select different sending resource pools according to information such as PLMN, radio frequency device, public security attribute, and the like of the terminal.

Accordingly, in step 603, the terminal in this embodiment may randomly or autonomously select the transmission resource pool, or select the transmission resource pool according to the priority information configured by the base station.

When the terminal is in a connected state, if the base station configures the configuration information of the transmission resource pool directly discovered by the pilot frequency adjacent and the configuration information of the resource pool of the cell through the dedicated RRC message, but does not configure the priority information of the resource pool, the terminal can randomly select the resource pool or autonomously select the transmission resource pool. If the base station is configured with the priority information, the terminal can select the sending resource pool according to the priority information configured by the base station.

The autonomous selection resource pool can be selected by referring to the information of PLMN information, radio frequency equipment, public safety attribute, historical selection and the like to which the terminal belongs. Such as: the terminal has a plurality of radio frequency devices, and the pilot frequency resource pool can be used independently and preferentially; the following steps are repeated: the terminal has the attribute of public safety, and the resource pool of the cell can be selected automatically.

The type at this time is that the terminal autonomously selects the resource type, so the terminal can use the obtained transmission resource pool on the carrier frequency to transmit the adjacent direct discovery message without changing the serving cell.

The above description is only a preferred example of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for enabling proximity direct discovery, comprising: the base station configures the information of the transmission resource pool directly discovered by the pilot frequency adjacent to the base station and transmits the information to the terminal;

2. The method of claim 1, wherein the base station transmits the configured inter-frequency neighbor direct discovery transmission resource pool information to a terminal through a Radio Resource Control (RRC) message.

3. The method of claim 2, wherein the RRC message is a system broadcast message or an RRC dedicated message.

4. The method of claim 1, further comprising: and the base station and other base stations interact the transmitting resource pool information directly discovered by the pilot frequency neighborhood.

5. The method according to claim 4, wherein the configuration information of the transmission resource pool directly discovered by the inter-frequency neighbor is configured through a network manager or through an interface between base stations;

6. The method according to claim 1 or 4, wherein the inter-frequency neighbor direct discovery transmission resource pool information is configuration information of an inter-frequency neighbor direct discovery transmission resource pool or a transmission indication that inter-frequency supports neighbor direct discovery.

7. The method according to claim 1, wherein the inter-frequency neighboring directly discovered transmission resource pool information is configuration information of an inter-frequency neighboring directly discovered transmission resource pool;

8. The method of claim 1, wherein the pilot frequency neighboring direct discovery transmission resource pool information is a transmission indication that the pilot frequency supports neighboring direct discovery;

9. The method according to any one of claims 1 to 3 and 6 to 8, wherein the terminal is in an idle state or a connected state.

10. The method according to claim 1, wherein the inter-frequency neighboring directly discovered transmission resource pool information is configuration information of an inter-frequency neighboring directly discovered transmission resource pool; the implementing of the neighbor direct discovery by using the pilot frequency neighbor direct discovery resource pool configured by the base station comprises:

11. The method of claim 1, wherein the pilot frequency neighboring direct discovery transmission resource pool information is a transmission indication that the pilot frequency supports neighboring direct discovery;

12. The method of claim 1, wherein the inter-frequency neighbor direct discovery transmission resource pool information is a transmission indication that inter-frequency neighbor direct discovery is supported, and the non-distinguished transmission is that inter-frequency neighbor direct discovery is supported;

13. The method according to claim 1, wherein the inter-frequency neighboring directly discovered transmission resource pool information is configuration information of an inter-frequency neighboring directly discovered transmission resource pool;

14. The method of claim 13, wherein the base station configures configuration information of the inter-frequency neighboring directly discovered transmission resource pool and configuration information of the transmission resource pool of the serving cell, and further comprising: and the base station configures priority information for the sending resource pool.

15. The method of claim 14, further comprising: and the terminal selects a sending resource pool according to the obtained priority information.

16. The method of claim 1 or 13, further comprising: and the terminal randomly selects the sending resource pool or autonomously selects the sending resource pool.

17. The method according to claim 1, wherein the inter-frequency neighboring directly discovered transmission resource pool information is configuration information of an inter-frequency neighboring directly discovered transmission resource pool;

18. The method of claim 17, wherein the triggering condition for the base station to configure the terminal to perform the inter-frequency measurement is as follows: the terminal comes within the coverage of the frequency desired by the base station.

19. The method of claim 1, wherein the inter-frequency neighbor direct discovery transmit resource pool information is a transmit indication that inter-frequency supports neighbor direct discovery;

20. The method of claim 1, wherein the inter-frequency neighbor direct discovery transmit resource pool information is a transmit indication that inter-frequency supports neighbor direct discovery;

21. A base station, comprising at least: a first processing module, a first sending module, wherein,

22. The base station of claim 21, further comprising a first receiving module, configured to receive a first neighbor direct discovery request from a terminal and output the first neighbor direct discovery request to the first processing module;

23. The base station of claim 21, wherein the first processing module is further configured to: and configuring a transmission resource pool of the service cell and transmitting the transmission resource pool to the terminal through the first transmission module.

24. The base station of claim 23, wherein the first processing module is further configured to: and configuring the priority information of the sending resource pool and sending the priority information to the terminal through the first sending module.

25. The base station of claim 21, wherein the first receiving module is further configured to receive a second neighbor direct discovery request from a terminal and output the second neighbor direct discovery request to the first processing module; receiving a measurement report from a terminal and outputting the measurement report to the first processing module;

26. The base station of claim 21, further comprising a first receiving module; when the inter-frequency neighbor direct discovery transmission resource pool information is a transmission indication that inter-frequency supports neighbor direct discovery,

27. The base station of claim 21, wherein the first processing module is further configured to: exchanging inter-frequency adjacent directly discovered transmission resource pool information with other base stations through an interactive interface;

28. The base station according to claim 21 or 27, wherein the pilot frequency neighboring directly discovered transmission resource pool information is configuration information of a pilot frequency neighboring directly discovered transmission resource pool or a transmission indication that a pilot frequency supports neighboring directly discovered.

29. A terminal, characterized in that it comprises at least: a second processing module, a second receiving module, wherein,

30. The terminal according to claim 29, wherein when the inter-frequency neighboring directly discovered transmission resource pool information is configuration information of an inter-frequency neighboring directly discovered transmission resource pool,

31. The terminal according to claim 29, wherein when the pilot frequency neighboring direct discovery transmission resource pool information is a transmission indication that neighboring direct discovery is supported by pilot frequency,

32. The terminal according to claim 29, wherein when the sending resource pool information of inter-frequency neighbor direct discovery is a sending indication that inter-frequency neighbor direct discovery is supported and no distinction is made between sending that inter-frequency neighbor direct discovery is supported, further comprising a second sending module, configured to send a first neighbor direct discovery request to the base station after the terminal enters a connected state.

33. The terminal of claim 29, wherein the second receiving module is further configured to receive a transmission resource pool of a serving cell from a base station and output the transmission resource pool to the second processing module.

34. The terminal of claim 33, wherein the second processing module is further configured to: the pool of transmission resources is selected randomly or autonomously.

35. The terminal of claim 33, wherein the second receiving module is further configured to: receiving priority information from the base station; accordingly, the number of the first and second electrodes,

the second processing module is further configured to: and selecting a sending resource pool according to the priority information.

36. The terminal of claim 32, wherein the second sending module is further configured to: sending a first adjacent direct discovery request to a base station after a terminal enters a connected state;

37. The terminal of claim 29, wherein the second receiving module is further configured to: receiving pilot frequency selection indication from a base station and outputting the pilot frequency selection indication to the second processing module;

38. The terminal of claim 29, wherein the second receiving module is further configured to: receiving pilot frequency selection indication from a base station and outputting the pilot frequency selection indication to the second processing module;