CN105246027A - D2D relay resource configuration method, device and system - Google Patents
D2D relay resource configuration method, device and system Download PDFInfo
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- CN105246027A CN105246027A CN201510621703.0A CN201510621703A CN105246027A CN 105246027 A CN105246027 A CN 105246027A CN 201510621703 A CN201510621703 A CN 201510621703A CN 105246027 A CN105246027 A CN 105246027A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
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Abstract
The embodiment of the application discloses a D2D relay resource configuration method, a D2D relay resource configuration device and a D2D relay resource configuration system. The method comprises the steps as follows: a first terminal obtaining configuration information issued by a base station, wherein the configuration information comprises a side-chain link discovering resource pool, and the side-chain link discovering resource pool is only used for discovering the first terminal, and the first terminal is a terminal with a relay function; using the side-chain link discovering resource pool to broadcast information that the first terminal has the relay function, or using the side-chain link discovering resource pool to transmit a response message to a far-end terminal after receiving a discovering request transmitted by the far-end terminal , wherein the response message is used for indicating that the first terminal has the relay function. In the application, the base station configures the resource pool which is specially used for discovering the terminal with the relay function for the terminal with the relay function so as to avoid the phenomenon that the far-end terminal needs to switch monitoring in a plurality of resource pools. The D2D relay resource configuration method, the D2D relay resource configuration device and the D2D relay resource configuration system of the invention improve efficiency of discovering the terminal with the relay function and shorten the time consumption of the process for establishing a D2D communication link.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of D2D relay resource collocation method, Apparatus and system.
Background technology
Device-to-device (DevicetoDevice, D2D) communication is at third generation partner program (the3rdGenerationPartnershipProject, be called for short 3GPP) communication technology introduced, at Long Term Evolution (LongTermEvolution, be called for short LTE) in the network architecture, it allows directly to pass through specific channel communication each other at a distance of two nearer terminals in cellular network, and need not as conventional communication traffic, first by source terminal, signal is sent to base station, then be transmitted to object terminal by base station.D2D relaying is then introduce on the basis of D2D communication, namely relaying UE and by relaying UE (i.e. far-end UE) between communicate by D2D mode, and relaying UE communicates by traditional mode with between base station, the communication realized by relaying UE between far-end UE and base station, can be realized.D2D communication can adopt base station scheduling pattern and Resource Pool Pattern.Prior art does not still support that base station or relaying UE dispatch far-end UE, and therefore, D2D trunking traffic needs to be undertaken by resource pool.
The operation of D2D relaying, needs the support of base station.Existing technical stipulation, the base station possessing relaying support function to the mobile terminal broadcast communication resource pond in community according to certain cycle, therefore, between mobile terminal, has multiple communication resource pond and exists, for mobile terminal selective gist.When a certain terminal is as when having the terminal of relay function, it utilizes the resource pool broadcast of self self to possess the message of relay function, to make distance terminal can obtain this message, finds this to have the terminal of relay function, carries out trunking traffic.Exist owing to having multiple terminal with relay function in community, each terminal with relay function sends this broadcast in the resource pool oneself used, when distance terminal is wanted to find the terminal with relay function, need to monitor in each resource pool whether have this broadcast one by one, to determine whether the terminal with relay function.
As can be seen here, existing resources employment methods, makes distance terminal need to monitor one by one in multiple resource pool, to determine the terminal with relay function, causes the whole process setting up D2D communication linkage consuming time very long, is unfavorable for realizing D2D communication fast.
Summary of the invention
This application discloses a kind of D2D relay resource collocation method, Apparatus and system, solve the problem of the process the setting up D2D communication linkage length consuming time that resources employment methods of the prior art causes.
First aspect, embodiments provides a kind of D2D relay resource collocation method and comprises:
First terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
Described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function; Or after the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
In conjunction with first aspect, in the first possible implementation of first aspect, the process of the discovery request that described reception distance terminal sends comprises: receive the discovery request that distance terminal utilizes described side chain link discovery resource pool to send.
In conjunction with the first possible implementation of first aspect, in the implementation that the second of first aspect is possible, Uu link quality values between described first terminal and described base station is not more than first threshold, and described first threshold is have the terminal of relay function and the maximum of base station Uu link-quality.
In conjunction with the first possible implementation of first aspect, in the third possible implementation of first aspect, Uu link quality values between described first terminal and base station is not more than first threshold, and being in RRC connection status, described first threshold is have the terminal of relay function and the maximum of base station Uu link-quality.
Second aspect, embodiments provides a kind of D2D relay resource collocation method, comprising:
Base station sends configuration information to first terminal, described first terminal is the terminal with relay function, side chain link discovery resource pool is included in described configuration information, described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function to make described first terminal, or, after the discovery request receiving distance terminal transmission, described side chain link discovery resource pool is utilized to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function, described side chain link discovery resource pool is only for finding described first terminal.
The third aspect, embodiments provides a kind of D2D relay resource collocation method, comprising:
First terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
Described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function.
Fourth aspect, embodiments provides a kind of D2D relay resource collocation method, comprising:
First terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
After the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
5th aspect, embodiments provides a kind of D2D relay resource collocation method, comprising:
Configuration information acquisition module, for obtaining the configuration information that base station issues, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
Broadcast module, broadcasts for utilizing described side chain link discovery resource pool the information self possessing relay function;
And/or;
Find request respond module, for after the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
6th aspect, embodiments provides a kind of D2D relay resource collocation method, comprising:
Configuration information sending module, for sending configuration information to first terminal, described first terminal is the terminal with relay function, side chain link discovery resource pool is included in described configuration information, described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function to make described first terminal, or, after the discovery request receiving distance terminal transmission, described side chain link discovery resource pool is utilized to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function, described side chain link discovery resource pool is only for finding described first terminal.
7th aspect, embodiments provides a kind of D2D relay resource collocation method, comprising: base station, at least one first terminal be connected with described base station;
Described base station is used for, and send configuration information to terminal, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal;
Described first terminal is used for, and receives described configuration information, utilizes described side chain link discovery resource pool to broadcast the information self possessing relay function; Or; After receiving the discovery request of distance terminal transmission, send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
In a kind of D2D relay resource collocation method disclosed in the embodiment of the present application, base station is that the terminal configuration with relay function is specifically designed to the resource pool finding to have the terminal of relay function, thus make the terminal with relay function can complete the terminal discovery procedure with relay function in special resource pool, found by distance terminal, avoid the phenomenon that distance terminal switches monitoring in multiple resource pool, improve the efficiency of the terminal discovery procedure with relay function, shorten and set up the consuming time of D2D communication linkage process.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present application D2D communication relay system publicly;
Fig. 2 is the flow chart of the embodiment of the present application a kind of D2D relay resource collocation method publicly;
Fig. 3 is the flow chart of the embodiment of the present application another D2D relay resource collocation method publicly;
Fig. 4 is the flow chart of the embodiment of the present application another D2D relay resource collocation method publicly;
The structural representation of Fig. 5 a kind of D2D relay resource inking device disclosed in the embodiment of the present application;
The structural representation of Fig. 6 another D2D relay resource inking device disclosed in the embodiment of the present application;
The structural representation of Fig. 7 another D2D relay resource inking device disclosed in the embodiment of the present application;
The structural representation of Fig. 8 a kind of D2D relay resource configuration-system disclosed in the embodiment of the present application.
Embodiment
Embodiments provide a kind of D2D relay resource collocation method, Apparatus and system, the efficiency of the terminal discovery procedure with relay function can be improved, shorten and set up the consuming time of D2D communication linkage process.Be described in detail respectively below.
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " " 4th " etc. in specification of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.The embodiments described herein should be appreciated that the data used like this can be exchanged in the appropriate case, so that can be implemented with the order except the content except here diagram or description.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
D2D communication relay system disclosed in the present application as shown in Figure 1, comprise base station 101 and at least one terminal 102, wherein, in multiple terminal, the terminal be positioned at beyond edge, overlay area or overlay area is defined as distance terminal 102a, be in coverage, and the terminal with relay function is defined as link terminal 102b, and other terminals not possessing relay function are 102c.The communication link of represented by dotted arrows distance terminal and base station in figure, and realization represents the communication link that distance terminal is connected with base station by link terminal.
Disclosed in the embodiment of the present application, a kind of D2D relay resource collocation method as shown in Figure 2, comprising:
Step S201: first terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function.
The quantity of the first terminal in the present embodiment is one or more.Side chain link discovery resource pool comprises: side chain link discovery sends resource pool and side chain link discovery receives resource pool
Step S202: utilize described side chain link discovery resource pool to broadcast the information self possessing relay function, described information is used for distance terminal and finds described first terminal.
First terminal, after receiving side chain link discovery resource pool, initiatively utilizes this resource pool, self possesses the information of relay function to its terminal broadcast.And distance terminal is after listening to the information of this resource pool, then utilize this information, calculate the communication quality with each first terminal respectively, and according to this communication quality, select a target terminal, carry out the terminal of D2D communication as it.
In the present embodiment, this side chain link discovery resource pool, himself possesses the information of relay function, can not be used to other UE or other business for first terminal broadcast.
Another D2D relay resource collocation method disclosed in the present application as shown in Figure 3, comprising:
Step S301: first terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function.
Step S302: after the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
As described in above-described embodiment, if a certain terminal is determined certainly as distance terminal, but when it needs again to communicate with base station or other-end, it peripherad terminal can send the request of discovery, if the terminal not possessing relay function receives this request, then can ignore.And if after the terminal with relay function receives this request, it can utilize the side chain link discovery resource pool of configuration, responds this discovery request, send response message to described distance terminal.Such as, a response data packet is fed back by side chain link discovery resource pool.When distance terminal receives response message, just can determine which terminal is the terminal with relay function, and then connect with these terminals.
In the present embodiment, this side chain link discovery resource pool, for first terminal distally terminal transmission response message, can not be used to other UE or other business.
Above-mentioned two embodiments can be found out, its same characteristics is all, base station is the side chain link discovery resource pool of first terminal configuration is be exclusively used in the resource pool finding to have the terminal of relay function, does not do other application.Thus make the terminal with relay function can utilize special resource pool distally terminal transmission information, and distance terminal only need find the terminal with relay function in this resource pool, without the need to monitoring other resource pools, thus the whole discovery procedure with the terminal of relay function is carried out in a resource pool determined, improve the efficiency of the terminal discovery procedure with relay function, shorten and set up the consuming time of D2D communication linkage process.
Meanwhile, utilize special resource pool to it also avoid other communication processs to the impact of terminal discovery procedure with relay function, improve the stability of the terminal discovery procedure with relay function.
Fig. 2 and embodiment illustrated in fig. 3 in, first terminal utilizes the mode of side chain link discovery resource pool different, and this difference, and embody and find to have in the process of the terminal of relay function at distance terminal, the identity of promoter is different.In the above-described embodiments, first terminal can be configured to have wherein a kind of function utilizing the mode of side chain link discovery resource pool, or, be configured to have above-mentioned two kinds of functions utilizing the mode of side chain link discovery resource pool simultaneously, and according to different application scenarioss, select different modes.
In the embodiment depicted in figure 2, first terminal is after receiving configuration information, side chain link discovery resource pool is then initiatively utilized to broadcast the information self with relay function, and distance terminal is when receiving this information, just can be clear and definite, who is the terminal with relay function, then directly can utilize the information of this broadcast, calculate the link-quality of the terminal with each with relay function, and then determine that target has the terminal of relay function, realize D2D communication.
And in the embodiment shown in fig. 3, first terminal after receiving configuration information, the not function of active broadcast oneself, but wait for distance terminal initiate find request time, side chain link discovery resource pool just can be utilized to respond the request of distance terminal, and distally terminal sends response message.And distance terminal is after receiving response message, just can specifies this terminal and there is relay function, just can calculate and link-quality between first terminal, then determine that target has the terminal of relay function, realize D2D communication.
Contrast two schemes can find out, embodiment illustrated in fig. 2, only need first terminal broadcast, then can reach the object that distance terminal calculates link-quality, therefore, can find out, disclosed D2D relay resource collocation method embodiment illustrated in fig. 2 is more consuming time than method shown in Fig. 3 shorter, further, the utilization of resources is less.
In the embodiment of the present application, distance terminal is not merely included in the terminal be physically in outside base station range edge or base station range, can also comprise from physical location, be positioned near base station, but its surrounding enviroment cause mobile terminal cannot carry out the terminal of proper communication with base station, such as, be positioned at the basement near base station, or, be positioned at the region not having base station signal to cover near base station.
When whether terminal judges self is distance terminal, first can measure the Uu link-quality of itself and base station, if this Uu link-quality is less than can carry out the Uu link-quality minimum value of proper communication with base station, or there is no the covering signal of base station, be then far-end UE, need to realize the communication with network by relaying UE.The Uu link-quality minimum value of carrying out proper communication with base station can be base station sends in its coverage each terminal by the form broadcasted, also can be set in advance in terminal.The Uu link-quality minimum value of carrying out proper communication with base station that each terminal is arranged can be the same or different.
In the above-described embodiments, the process of first terminal acquisition configuration information comprises: first terminal receives the configuration information of base station broadcast.
Base station according to predetermined period, constantly to terminal broadcast configuration information.
Base station can utilize system information block, to first terminal broadcast configuration information.
Interchangeable, first terminal obtains the process of configuration information and comprises: determine to need for other-end relay function is provided time, send configuration request to base station; Receive the configuration information sent after described base station receives described configuration request.
In this implementation, first terminal can consider whether will provide relay function for other-end, this process depends on that the user of first terminal selects, determine whether will provide relay function for other-end by user, also can be first terminal setting trigger condition in advance, such as, with the Uu link quality values of base station in some scopes, if meet this condition, then trigger first terminal and automatically determine to provide relay function for other-end.When first terminal is determined to need to provide relay function for other-end, send configuration request to base station, with signals base, first terminal can as the terminal with relay function, after base station receives configuration request, then configuration information is sent to first terminal.
In the present embodiment, when base station sends resource allocation information to first terminal, dedicated signaling can be utilized, i.e. RRC signaling.But prerequisite is the connection having dedicated signaling between base station and first terminal.
In above-mentioned two kinds of embodiments, base station only can send configuration information to first terminal.This configuration information can be the form of System information block.Because first terminal is the terminal with relay function, in other words, first terminal is the terminal with relay function, therefore, after it receives configuration information, can use side chain link discovery resource pool wherein.
Certainly, base station also can to except first terminal other-end send configuration information, if base station can with broadcast form, then can to this configuration information of all terminal broadcast in base station range.For the terminal without relay function, they can ignore this configuration information usually, do not receive.
In the above-described embodiments, because base station can by the mode broadcasted, to all terminal broadcast configuration informations, then other-end can receive this configuration information.When these terminals and base station can not proper communications, that is, when it becomes distance terminal, it also can utilize the side chain link discovery resource pool in received configuration information.
Interchangeable, because terminal is mobile, therefore, the role of a certain terminal is not fixing, this and its present position and have direct relation with the Uu link-quality of base station.If a certain terminal is the terminal with relay function in previous moment, after it receives the configuration information of base station transmission, namely the right using side chain link discovery resource pool is provided with, if at subsequent time, this fast mobile terminal has arrived outside base station range, the latter, some cannot carry out in the environment of proper communication, then namely the identity of this terminal changes distance terminal into, and now, it also can utilize side chain link discovery resource pool.
Can receive configuration information at distance terminal, under obtaining side chain link discovery resource pool situation, the flow process of D2D relay resource collocation method can as shown in Figure 4, comprise:
Step S401: distance terminal and first terminal receive the configuration information that base station sends.
Step S402: first terminal utilizes described side chain link discovery resource pool to broadcast the information self possessing relay function.
Step S403: distance terminal monitors the information of described first terminal broadcast on described side chain link discovery resource pool.
Can receive configuration information at distance terminal, under obtaining side chain link discovery resource pool situation, the flow process of D2D relay resource collocation method also can as shown in Figure 5, comprise:
Step S501: distance terminal and first terminal receive the configuration information that base station sends.
Step S502: distance terminal utilizes described side chain link discovery resource pool to send to first terminal the request of discovery.
Step S503: first terminal utilizes described side chain link discovery resource pool to send response message to described distance terminal.
Even if in above-mentioned two examples, distance terminal also can utilize side chain link discovery resource pool, but, it utilizes the mode of side chain link discovery resource pool to be only limitted to monitor the message of first terminal broadcast on this resource pool, or utilize this resource pool to send to the terminal with relay function the request of discovery, and this process is also a kind of mode that the terminal with relay function is found by distance terminal.Therefore, do not depart from the terminal of side chain link discovery resource pool only for having relay function yet and found this core aim by distance terminal.
In summary it can be seen; the application is not limited to side chain link discovery resource pool and only can be used by the terminal with relay function; it also can be used by distance terminal; as long as utilize this side chain link discovery resource pool to realize the mode that distance terminal finds to have the terminal of relay function, it is all the scope that the application protects.
In each embodiment above-mentioned, in configuration information except including side chain link discovery resource pool, the useful life of this side chain link discovery resource pool can also be comprised.When side chain link discovery resource pool is in useful life, first terminal just can use it to carry out performing the information that broadcast self possesses relay function, or after the discovery request receiving distance terminal transmission, uses this discovery request of this resource response.
In each embodiment above-mentioned, the terminal with relay function can be: be not more than the terminal of first threshold with the Uu link quality values of base station, and described first threshold is have the terminal of relay function and the maximum of base station Uu link-quality.
Why set this condition, because in base station range, the distance of each terminal distance base station is uncertain, if some terminal from base station very close to, if and distance terminal selects these terminals, its link-quality with these terminals compared with the link-quality of base station, does not have very large lifting with it, so directly cause D2D communication quality poor, cannot get a desired effect.Therefore, this condition can be utilized to screen out part terminal.And then distance terminal and these terminals not possessing relay condition also can be avoided to carry out alternately, reducing the utilization of resource.
Every terminal meeting above-mentioned condition, can obtain side chain link discovery resource pool by base station by the configuration information that broadcast mode sends.
In addition, in the implementation that another is parallel, the terminal with relay function can be: be not more than first threshold with the Uu link quality values of base station, and, be in the terminal of dedicated signaling connection status, described first threshold is have the terminal of relay function and the maximum of base station Uu link-quality.
In the present embodiment, except having link quality requirement to terminal, also there is requirement to the linking status of terminal, thus ensure that terminal can utilize dedicated signaling to receive the configuration information of base station transmission, obtain side chain link discovery resource pool.
Above-described embodiment is all the elaborations carried out scheme from the angle of first terminal, simply describes below from base station side to scheme.Be illustrated in figure 4 another D2D relay resource collocation method disclosed in the present application, comprise:
Step S401: base station sends configuration information to first terminal, described first terminal is the terminal with relay function, side chain link discovery resource pool is included in described configuration information, described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function to make described first terminal, or, after the discovery request receiving distance terminal transmission, described side chain link discovery resource pool is utilized to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function, described side chain link discovery resource pool is only for finding described first terminal.
In the present embodiment, first terminal is at least one, as described in Figure, comprises first terminal a and first terminal b.
In the present embodiment, base station is that the terminal configuration with relay function is specifically designed to the resource pool finding to have the terminal of relay function, thus make the terminal with relay function can complete the terminal discovery procedure with relay function in special resource pool, found by distance terminal, avoid the phenomenon that distance terminal switches monitoring in multiple resource pool, improve the efficiency of the terminal discovery procedure with relay function, shorten and set up the consuming time of D2D communication linkage process.
Further, base station by the form of broadcast, can send configuration information to first terminal.Concrete, base station according to predetermined period, ceaselessly to terminal broadcast configuration information.Base station can utilize system information block to first terminal broadcast configuration information.
Interchangeable, base station after the configuration request receiving first terminal transmission, can send configuration information to first terminal.This configuration request is determined to need to send to base station during relay function for other-end provides for described first terminal.In the present embodiment, when base station sends resource allocation information to first terminal, dedicated signaling can be utilized, i.e. RRC signaling.But prerequisite is the connection having dedicated signaling between base station and first terminal.
In above-mentioned two kinds of embodiments, base station only can send configuration information to first terminal.This configuration information can be the form of System information block.Because first terminal is the terminal with relay function, in other words, first terminal is the terminal with relay function, therefore, after it receives configuration information, can use side chain link discovery resource pool wherein.
Certainly, base station also can to except first terminal other-end send configuration information, if base station can with broadcast form, then can to this configuration information of all terminal broadcast in base station range.For the terminal without relay function, they can ignore this configuration information usually, do not receive.
In each embodiment above-mentioned, in configuration information except including side chain link discovery resource pool, the useful life of this side chain link discovery resource pool can also be comprised.When side chain link discovery resource pool is in useful life, first terminal just can use it to carry out performing the information that broadcast self possesses relay function, or after the discovery request receiving distance terminal transmission, uses this discovery request of this resource response.
In the various embodiments described above, base station can be configured to have any one function to first terminal transmission configuration information above-mentioned, also can be configured to have above-mentioned two kinds of functions sending configuration information to first terminal, select wherein a kind of mode according to different application scenarioss.
The application also discloses a kind of D2D relay resource inking device 11, as shown in Figure 6, comprising:
Configuration information acquisition module 601, for obtaining the configuration information that base station issues, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function.
Broadcast module 602, broadcasts for utilizing described side chain link discovery resource pool the information self possessing relay function.
Disclosed in the embodiment of the present application, another D2D relay resource inking device 12 as shown in Figure 7, comprising:
Configuration information acquisition module 601, for obtaining the configuration information that base station issues, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function.
Find request respond module 702, for after the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
D2D relay resource inking device 11 shown in Fig. 6 embodiment and the D2D relay resource inking device 12 shown in Fig. 7, have identical configuration information acquisition module.But first terminal utilizes the mode of side chain link discovery resource pool different, and this difference, embody and find to have in the process of the terminal of relay function at distance terminal, the identity of promoter is different.In the above-described embodiments, D2D relay resource inking device can be configured to have wherein a kind of function utilizing the mode of side chain link discovery resource pool, or, be configured to have above-mentioned two kinds of functions utilizing the mode of side chain link discovery resource pool simultaneously, and according to different application scenarioss, select different modes.
On the basis of above-mentioned two embodiments, described configuration information acquisition module comprises:
First receiving element, for receiving the configuration information of base station broadcast.
Now base station sends configuration information with the form of broadcast to first terminal.
Interchangeable, described configuration information acquisition module comprises:
Configuration request transmitting element, for needs for other-end relay function is provided time, send configuration request to base station.
Second receiving element, for receiving the configuration information sent after described base station receives described configuration request.
The course of work of device disclosed in the present embodiment with reference to embodiment of the method shown in figure 2-3, can not repeat them here.
Disclosed in the embodiment of the present application, another D2D relay resource inking device comprises:
Configuration information sending module, for sending configuration information to first terminal, side chain link discovery resource pool is included in described configuration information, described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function to make described first terminal, or, after the discovery request receiving distance terminal transmission, described side chain link discovery resource pool is utilized to respond described discovery request, described first terminal is the terminal with relay function, and the terminal of described side chain link discovery resource pool only for having relay function is found by distance terminal.
Further, described configuration information sending module comprises:
Radio unit, for configuration information described in described terminal broadcast.
Or described configuration information sending module comprises:
Configuration request receiving element, for receiving the configuration request that first terminal sends, described request is determined to need to send to base station during relay function for other-end provides for described first terminal.
Configuration information transmitting element, for sending described configuration information to described first terminal.
Disclosed in the embodiment of the present application, the course of work of device please refer to embodiment of the method, does not repeat them here.
The application also discloses a kind of D2D relay resource configuration-system, and its structure as shown in Figure 8, comprising: base station 801, and, at least one first terminal 802 be connected with described base station.
Described base station 801 for, to terminal send configuration information, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal.
Described first terminal 802 for, receive described configuration information, utilize described side chain link discovery resource pool to broadcast and self possess the information of relay function; Or; After receiving the discovery request of distance terminal transmission, send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
In the present embodiment, the function of each parts please refer to embodiment of the method.
The application is publicly in D2D relay resource configuration-system, base station is that the terminal configuration with relay function is specifically designed to the resource pool finding to have the terminal of relay function, thus make the terminal with relay function can complete the terminal discovery procedure with relay function in special resource pool, found by distance terminal, avoid the phenomenon that distance terminal switches monitoring in multiple resource pool, improve the efficiency of the terminal discovery procedure with relay function, shorten and set up the consuming time of D2D communication linkage process.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.
The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.
If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, read-only memory (ROM, Read-OnlyMemory), random access memory (RAM, RandomAccessMemory), magnetic disc or CD etc. various can be program code stored medium.
The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a D2D relay resource collocation method, is characterized in that, comprising:
First terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
Described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function; Or after the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
2. method according to claim 1, is characterized in that, the process of the discovery request that described reception distance terminal sends comprises: receive the discovery request that distance terminal utilizes described side chain link discovery resource pool to send.
3. method according to claim 2, is characterized in that, the Uu link quality values between described first terminal and described base station is not more than first threshold, and described first threshold is have the terminal of relay function and the maximum of base station Uu link-quality.
4. method according to claim 2, it is characterized in that, Uu link quality values between described first terminal and base station is not more than first threshold, and is in RRC connection status, and described first threshold is have the terminal of relay function and the maximum of base station Uu link-quality.
5. a D2D relay resource collocation method, is characterized in that, comprising:
Base station sends configuration information to first terminal, described first terminal is the terminal with relay function, side chain link discovery resource pool is included in described configuration information, described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function to make described first terminal, or, after the discovery request receiving distance terminal transmission, described side chain link discovery resource pool is utilized to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function, described side chain link discovery resource pool is only for finding described first terminal.
6. a D2D relay resource collocation method, is characterized in that, comprising:
First terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
Described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function.
7. a D2D relay resource collocation method, is characterized in that, comprising:
First terminal obtains the configuration information that base station issues, and include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
After the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
8. a D2D relay resource inking device, is characterized in that, comprising:
Configuration information acquisition module, for obtaining the configuration information that base station issues, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal, and described first terminal is the terminal with relay function;
Broadcast module, broadcasts for utilizing described side chain link discovery resource pool the information self possessing relay function;
And/or;
Find request respond module, for after the discovery request receiving distance terminal transmission, utilize described side chain link discovery resource pool to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
9. a D2D relay resource inking device, is characterized in that, comprising:
Configuration information sending module, for sending configuration information to first terminal, described first terminal is the terminal with relay function, side chain link discovery resource pool is included in described configuration information, described side chain link discovery resource pool is utilized to broadcast the information self possessing relay function to make described first terminal, or, after the discovery request receiving distance terminal transmission, described side chain link discovery resource pool is utilized to send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function, described side chain link discovery resource pool is only for finding described first terminal.
10. a D2D relay resource configuration-system, is characterized in that, comprising: base station, at least one first terminal be connected with described base station;
Described base station is used for, and send configuration information to terminal, include side chain link discovery resource pool in described configuration information, described side chain link discovery resource pool is only for finding described first terminal;
Described first terminal is used for, and receives described configuration information, utilizes described side chain link discovery resource pool to broadcast the information self possessing relay function; Or; After receiving the discovery request of distance terminal transmission, send response message to described distance terminal, described response message is used to indicate described first terminal and possesses relay function.
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| CN201510621703.0A CN105246027A (en) | 2015-09-25 | 2015-09-25 | D2D relay resource configuration method, device and system |
| PCT/CN2015/093539 WO2017049737A1 (en) | 2015-09-25 | 2015-10-31 | D2d relay resource allocation method, apparatus and system |
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| CN201510621703.0A CN105246027A (en) | 2015-09-25 | 2015-09-25 | D2D relay resource configuration method, device and system |
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