CN104853429B - The method and terminal for realizing that LTE terminal is straight-through are matched based on subframe - Google Patents
The method and terminal for realizing that LTE terminal is straight-through are matched based on subframe Download PDFInfo
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- CN104853429B CN104853429B CN201510190003.0A CN201510190003A CN104853429B CN 104853429 B CN104853429 B CN 104853429B CN 201510190003 A CN201510190003 A CN 201510190003A CN 104853429 B CN104853429 B CN 104853429B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention provides a kind of methods and terminal for realizing that LTE terminal is straight-through, and method includes that straight-through terminal is achieved by the prior art temporal synchronization, and terminal is in called state；Fixed blind solution resource is arranged in the terminal periodic on receiving subframe, and periodically carries out blind solution in the blind solution resource, when being resolved to the mark of oneself, i.e., is communicated according to the subframe of opposite end proportioning；When terminal is called, by adjusting the ratio of uplink subframe to downlink subframe of oneself, it is corresponding with subframe is received to realize that the calling and called terminal has transmission subframe each other；Wherein, calling terminal must have the blind solution subframe correspondence for sending subframe and called terminal.The terminal iidentification that the calling terminal will will call, the information such as subframe proportioning of oneself are sent in blind solution resource, you can establish the communication for the first time between calling and called terminal.Subsequent terminal is according to the temporal aspect of other side, it is ensured that can complete to send and receive work each other.System realizes the direct communication between terminal.
Description
Technical field
The present invention relates to the communications fields, more particularly to realize LTE（Long Term Evolution）The method of terminal direct connection
And terminal.
Background technology
The technology of direct communication is horizontal also in 2G at present between terminal, and what is transmitted between terminal also only resides within language
Sound business is also faced with the demands such as data traffic transmission far from actual requirement is met between terminal.
Public network comes into the LTE epoch at present, and existing emergency plan is answered by building emergent access net realization temporarily
Anxious communication.But the emergent access net started under special circumstances inherently exists by the risk of secondary attack.It is not to appoint simultaneously
When carve, any place can successfully build emergency system, therefore the demand that LTE terminal is led directly to is particularly evident.
For LTE technologies to the time there are higher requirement, the prior art can solve the stationary problem between communication terminal.
But according to the existing technologies of LTE, the delivery time between LTE terminal is identical with the time of reception, and all terminals exist
Synchronization is sent, and causes the data that terminal is sent out that can not be received by other-end；All terminals are received in synchronization,
It also results in no terminal and sends out data.So as to cause LTE terminal according to the prior art, cannot achieve straight-through.
Invention content
The present invention provides a kind of method and terminal for realizing that LTE terminal is straight-through, for overcoming in existing LTE technologies, due to
It is uncoordinated between being sent and received between terminal, the contact between sending and receiving can not be established, causes not leading between terminal
The problem of letter.
To achieve the goals above, the present invention provides a kind of method for realizing that LTE terminal is straight-through, including：
Terminal realizes the temporal synchronization of LTE terminal；
The terminal acquiescence is in called state, and fixed blind solution resource periodically is arranged on receiving subframe；It is called
Blind solution is carried out in the blind solution resource to terminal periodic.
When the called terminal is resolved to the mark of oneself, i.e., immediately according to the ratio of uplink subframe to downlink subframe of calling terminal,
Calling terminal is eated dishes without rice or wine into sequential and the called terminal sequential corresponds to, is communicated according to correspondence.
When terminal is called, by the way that first the ratio of uplink subframe to downlink subframe of oneself is adjusted, realize calling and called terminal that
It is corresponding with subframe is received to there is transmission subframe in this.
The calling terminal terminal iidentification to be called oneself, the subframe proportioning after oneself adjustment and oneself reception
The interface-free resources of response are sent to blind solution resource according to fixed modulation system, are then waited for according to the relationship of agreement called whole
Hold the response on receiving resource.
The terminal will according to the modulation system of the requirement of other side according to the front and back correspondence of subframe proportioning adjustment
Data are sent to opposite end, and opposite end is parsed according to the modulation system that oneself is required, you can is in communication with each other.
The terminal is adjusted to default configuration after this sign off, by the ratio of uplink subframe to downlink subframe of oneself, restores
For called terminal state.
The terminal used MCS in blind solution（Modulation and Coding Scheme, modulation and coding plan
Slightly）It is fixed low order, used RNTI to select rank（Radio Network Temporary Identifier, network face
When identify）Also it is that terminal is derived according to the mark of oneself；
Subframe where the blind solution resource, after ratio of uplink subframe to downlink subframe transformation, it is necessary to exist and send subframe and blind solution
Resource is corresponding；
The transmission subframe refers to the U frames in LTE standard, and the reception subframe refers to D frames and S frames in LTE system.
Before and after the called terminal is adjusted according to ratio of uplink subframe to downlink subframe, oneself can be received by calculating the calling terminal
The transmission subframe of transmission data, with the reception subframe for oneself being likely to be received the data that calling terminal is sent out；
The called terminal selects rank and RNTI to be communicated when being communicated to the calling terminal, using MCS.
The calling terminal uses low order MCS, while being scrambled using RNTI, while the calling terminal becomes oneself
Subframe proportioning after change notifies the called terminal.
The ratio of uplink subframe to downlink subframe of oneself is adjusted back initial setting by the calling terminal after sign off, whole
Body restores initial called state.
To achieve the goals above, the present invention provides a kind of terminal for realizing that LTE terminal is straight-through, including：
Clock module, for realizing the time synchronization between sending and receiving between LTE terminal；
Blind solution module for configuring periodically blind solution resource for the terminal, and attempts blind solution in blind solution resource；
Proportioning adjustment module adjusts the subframe proportioning of oneself for calling terminal, after the call ends, in the caller
When terminal reverts to the called state of acquiescence, proportioning is reverted into acquiescence proportioning；
Receiving module sends that subframe is corresponding connects for what is adjusted according to ratio of uplink subframe to downlink subframe as a result, existing in opposite end
Receipts subframe receives other terminals and is sent to the data of oneself；
Sending module, for receiving the corresponding transmission subframe of subframe as a result, existing in opposite end according to subframe proportioning adjustment
The data of oneself are sent to other terminals；
Modulation module, at communication initial stage, being modulated according to fixed MCS and RNTI, after connection setup, pressing
The MCS specified for opposite end according to oneself is parsed；
Judgment module, for according to blind solution as a result, judging whether there is other terminals is calling oneself, while according to described
Subframe after calling terminal adjustment changes, and what is corresponded to each other between calculating calling and called terminal sends and receives subframe；
After the communication has been established, the data that parsing opposite end is sent judge to select to the MCS of opposite end transmission data.
Proportioning adjustment module for the terminal will active call other terminals when, adjust uplink and downlink of oneself
Frame matches, and it is corresponding with subframe is received to there is transmission subframe between realization calling and called terminal each other；There is hair in resource in blind solution
Subframe is sent to correspond；And sending module delivery and reception module is instructed to receive accordingly；The calling terminal is in sign off
Later, ratio of uplink subframe to downlink subframe reverts to initial proportioning；It is whole to restore called state.
The judgment module is specifically used for finding the mark of oneself in blind solution, the uplink and downlink after being changed according to calling terminal
Subframe matches, and calculates the subframe for the transmission data that calling and called terminal corresponds to each other and receives the subframe of data, according to acquisition
Calling terminal is arranged according to initial MCS by RNTI, receives the corresponding transmission subframe of subframe there are caller and is replied, and
In reply rank is selected with the MCS of determining opposite end transmission data next time.
The method and terminal provided by the invention for realizing that LTE terminal is straight-through, terminal is achieved by the prior art temporal
It is synchronous.The terminal acquiescence is in called state, and the period is receiving the fixed blind solution resource of subframe setting；Called terminal is periodical
Blind solution is carried out in the blind solution resource.When the called terminal is resolved to the mark of oneself, i.e., immediately according to the upper of calling terminal
Downlink subframe matches, and calling terminal eats dishes without rice or wine sequential and the called terminal sequential is corresponded to, and is communicated according to correspondence.
When terminal is called, by being first adjusted the ratio of uplink subframe to downlink subframe of oneself, realize that calling and called terminal has hair each other
Send subframe corresponding with subframe is received；Wherein, calling terminal, which must exist, sends subframe and the blind solution subframe correspondence of called terminal.Institute
The subframe proportioning after terminal iidentification that calling terminal to be called oneself and oneself adjustment is stated, according to fixed modulation system,
It is sent in blind solution resource, then, the response of called terminal is waited for according to the relationship of agreement.The terminal is according to ascending-descending subframes
Data are sent to opposite end, opposite end is according to certainly by the front and back correspondence of proportioning adjustment according to the requirement selecting modulation mode of other side
The modulation system that oneself requires is parsed, you can is in communication with each other；
Description of the drawings
Fig. 1 is that a kind of matched based on subframe that the embodiment of the present invention one provides realizes the called of the straight-through method of LTE terminal
Flow diagram；
Fig. 2 is a kind of caller matching the method for realizing that LTE terminal is led directly to based on subframe provided by Embodiment 2 of the present invention
Flow diagram；
Fig. 3 is that a kind of matched based on subframe that the embodiment of the present invention three provides realizes that the straight-through terminal structure of LTE terminal shows
It is intended to.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Fig. 1 is the embodiment of the present invention one, and a kind of matched based on subframe realizes that the called flow of the straight-through method of LTE terminal shows
It is intended to.As shown in Figure 1, this approach includes the following steps：
101, system is that fixed blind solution interface-free resources are arranged in the terminal in called state.
The blind solution resource is terminal according to the fixed period before straight-through, fixed in the reception subframe setting of terminal
Interface-free resources.The resource is interface-free resources existing for the period, and resource, which is specifically defined, can be found in third generation partner program
（3rd Generation Partnership Project, abbreviation 3GPP）36 serial protocols, no longer describe herein.
Herein it should be noted that the straight-through only emergency plan in the case where being netted there is no access of LTE terminal.Cause
This is just led directly to when only there is straight-through need.As long as completing relevant parameter configuration before the unlatching of straight-through function,
In addition the method for time synchronization uses the prior art between terminal direct connection.
It should also be noted that, after blind solution resource is necessarily located at ratio of uplink subframe to downlink subframe adjustment, there are transmission subframes herein
Corresponding reception subframe.For example, terminal acquiescence ratio of uplink subframe to downlink subframe is proportioning 2, blind solution resource is arranged in 4 work songs
Frame.
102, called terminal carries out blind solution in blind solution resource.
The called terminal carries out blind solution in blind solution resource according to scheduled RNTI, MCS.The RNTI and MCS is with 101
Blind solution resource setting and meanwhile configure.
103, the mark of oneself is searched in analysis result, if finding the mark of oneself, further searches for opposite end change
Ratio of uplink subframe to downlink subframe after changing, and the interface-free resources responded for the first time are received, otherwise, without any processing.
According to the relationship after the existing ratio of uplink subframe to downlink subframe of oneself and opposite end adjustment ratio of uplink subframe to downlink subframe, determination pair
End can receive data, and oneself have and send the corresponding subframe of subframe.Determining simultaneously, which oneself can receive opposite end, sends data
Reception.
104, according to 103 as a result, the transmission subframe transmission data of data can be received in opposite end.
The RNTI and MCS of the transmission data and 102 identical, while arranging opposite end transmission data is used next time
RNTI, MCS and used interface-free resources.
This used interface-free resources is determined by the instruction in 103 analysis results.
105, the data that parsing opposite end sends over.
In the interface-free resources specified by described 104, according to the RNTI and MCS specified by 104, parsing opposite end sends over
Data.
A kind of called flow for realizing that LTE terminal is straight-through provided in this embodiment, terminal are in by configuring blind solution resource
The terminal of called state is in blind solution resource, and according to fixed RNTI, MCS is parsed.By whether being resolved to the mark of oneself
Knowledge judges whether terminal call oneself；Ascending-descending subframes after being adjusted by opposite end configure ratio, and determination is the sequential of opposite end
With the correspondence of the sequential of oneself, the subframe that oneself can be communicated with opposite end is determined.By being transmitted to opposite end is specified next time
Used resource, RNTI and MCS determine the parameter for parsing of oneself eating dishes without rice or wine next time.Determine the parameter for parsing of eating dishes without rice or wine next time.
Fig. 2 is the embodiment of the present invention two, a kind of to match the calling procedure signal for realizing LTE terminal direction connection method based on subframe
Figure, as shown in Fig. 2, this approach includes the following steps：
201, called terminal is in caller state by adjusting the ratio of uplink subframe to downlink subframe of oneself.
The calling terminal is by the way that the ratio of uplink subframe to downlink subframe of oneself to be adjusted, after realizing adjustment, called state
The blind solution resource of terminal, the transmission subframe deposited after the adjustment are corresponding to it.Calling and called terminal each other exist receive subframe and
It is corresponding to send subframe；For example, the ratio of uplink subframe to downlink subframe of calling terminal, which is adjusted to 3, can reach requirement.
202, the terminal of caller state is in the blind solution resource of the terminal of called state, send target terminal mark and from
The adjustment of own ratio of uplink subframe to downlink subframe as a result, and being received back the interface-free resources answered.
The target terminal is the terminal of caller terminal call, and the transmission is eated dishes without rice or wine RNTI, MCS of data and described called
Terminal carries out used consistent when blind solution.
203, calling terminal receives the response of the called terminal.
The calling terminal institute is according to LTE sequential, which may refer to 36 serial protocols of 3GPP, specified by 202
Interface-free resources parsed.
204, it is specified by affiliated data in the interface-free resources that the data are specified according to 203 received datas
RNTI, MCS send the data of oneself.
205, the resource extremely occupation mode transmission data that follow-up calling terminal is specified according to the called terminal, until number
Until end of transmission.
206, after calling terminal data transmission, before the ratio of uplink subframe to downlink subframe of oneself is adjusted back 201.Simultaneously certainly
Oneself reverts to called state.
Realization LTE terminal provided in this embodiment leads directly to calling procedure, and LTE terminal is matched by adjusting oneself ascending-descending subframes
Than, it is corresponding with subframe is received in the presence of subframe is sent each other between calling and called after realizing adjustment, while ensuring the blind of called terminal
Resource being solved there are the transmission subframe of calling terminal is corresponding, calling terminal is by blind solution resource, with fixed RNTI scramblings,
Fixed MCS selects rank, the mark for sending the terminal that oneself will be called and the ratio of uplink subframe to downlink subframe after oneself adjustment, and
Oneself receive the corresponding resource in opposite end, notice opposite end oneself needs to establish with it to contact, and parses opposite end in scheduled resource
Response.It is led directly to realize to establish each other.
Fig. 3 is the embodiment of the present invention three, a kind of to match the structural representation for realizing the straight-through terminal of LTE terminal based on subframe
Figure.As shown in figure 3, the terminal includes：Receiving module 31, blind solution module 32, subframe proportioning adjustment module 33, judgment module 34,
Clock module 35, modulation module 36 and sending module 37.
Wherein, receiving module 31, when terminal is in called state, receiving module initial stage is in blind in the blind solution subframe of reception
The signal for solving resource, after being communicated for the first time between terminal, receiving module receives the data that Correspondent Node is sent.
Further, when terminal is in called state, when being communicated for the first time to establish, receiving module be according to initially configure into
Row receives data.For the first time communicate after, receiving module according to judgment module judge as a result, judgment module judge will have number
It is received according to the interface-free resources of arrival.
Blind solution module 32, for when being in called state to the terminal, interface-free resources reception to be parsed in blind solution resource
The signal arrived.
Subframe proportioning adjustment module 33 adjusts the ratio of uplink subframe to downlink subframe of oneself when becoming caller for terminal, it is ensured that main
Exist to send subframe and receive subframe between called terminal and correspond to each other；Ensure that calling terminal exists and sends subframe and called terminal
Blind solution subframe it is corresponding.After sign off, calling terminal reverts to ratio of uplink subframe to downlink subframe initially set, integrally returns to
The called state of acquiescence.
Judgment module 34 needs to judge that oneself needs adjusts upper and lower when terminal is in caller state according to caller
Row subframe matches, and according to mutual transmission subframe pass corresponding with subframe is received between the sequential calculating calling and called after adjustment
System；When terminal is in called state, according in the blind solution module 32 of blind solution as a result, judging whether the terminal of opposite end calling is oneself
Oneself matches in the case where being oneself according to the subframe of opposite end, judges the transmission subframe between calling and called terminal and receives subframe
Between correspondence.
Clock module 35, according to the prior art realize LTE terminal it is straight-through send and receive between synchronization.
Modulation module 36, according to judgment module judgement as a result, being modulated and scrambling to transmission data.
Sending module 37, according to eating dishes without rice or wine as a result, sending data to for judgment module.
In the present embodiment, realize that LTE terminal is straight-through based on clock, calling terminal by adjusting the clock of oneself, realize and
It is corresponding with subframe is received to there is transmission subframe between called each other.Called terminal in blind solution resource by parsing oneself simultaneously
Mark.Judge whether oneself is the object called.Sequential relationship between being calculated according to the clock bias of caller.According to
The MCS that opposite end requires selects rank, and data are transmitted in the interface-free resources that opposite end is specified.It is straight-through between realization calling and called terminal.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (8)
1. a kind of method for realizing that LTE terminal is straight-through, which is characterized in that including：
Terminal realizes the temporal synchronization of LTE terminal；
The terminal acquiescence is in called state, and fixed blind solution resource periodically is arranged on receiving subframe；Called terminal
Periodically blind solution is carried out in the blind solution resource；
When the called terminal is resolved to the mark of oneself, i.e., will be led according to the ratio of uplink subframe to downlink subframe of calling terminal immediately
It cries that terminal eats dishes without rice or wine sequential and the called terminal sequential is corresponded to, is communicated according to correspondence；
When terminal is called, by being first adjusted the ratio of uplink subframe to downlink subframe of oneself, realize that calling and called terminal is deposited each other
It is corresponding with subframe is received sending subframe；
The calling terminal terminal iidentification to be called oneself, the subframe proportioning after oneself adjustment and oneself reception response
Interface-free resources according to fixed modulation system, be sent to blind solution resource, then according to the relationship of agreement wait for called terminal exist
Receive the response in resource；
The terminal is according to the front and back correspondence of subframe proportioning adjustment, according to the modulation system of the requirement of other side, by data
It is sent to opposite end, opposite end is parsed according to the modulation system that oneself is required, you can is in communication with each other；
The terminal is adjusted to default configuration after this sign off, by the ratio of uplink subframe to downlink subframe of oneself, revert to by
It is the SOT state of termination.
2. method according to claim 1, including：
The terminal used modulation in blind solution selects rank for fixed low order with coding strategy MCS, used network
Temporary identifier RNTI is also that terminal is derived according to mark；
Subframe where the blind solution resource, after ratio of uplink subframe to downlink subframe transformation, it is necessary to exist and send subframe and blind solution resource
It is corresponding；
The transmission subframe refers to the U frames in LTE standard, and the reception subframe refers to D frames and S frames in LTE system.
3. according to the method described in claim 2, including：
Before and after the called terminal is adjusted according to ratio of uplink subframe to downlink subframe, oneself transmission can be received by calculating the calling terminal
The transmission subframe of data, with the reception subframe for oneself being likely to be received the data that calling terminal is sent out；
The called terminal selects rank and RNTI to be communicated when being communicated to the calling terminal, using MCS.
4. according to the method described in claim 2, including：
After the calling terminal selects rank using MCS, while being scrambled using RNTI, while the calling terminal changes oneself
Subframe proportioning notify the called terminal.
5. according to the method described in claim 1, including：
The ratio of uplink subframe to downlink subframe of oneself is adjusted back initial setting by the calling terminal after sign off, whole extensive
Multiple initial called state.
6. a kind of terminal for realizing that LTE terminal is straight-through, which is characterized in that including：
Clock module, for realizing the time synchronization between sending and receiving between LTE terminal；
Blind solution module for configuring periodically blind solution resource for the terminal, and attempts blind solution in blind solution resource；
Proportioning adjustment module adjusts the subframe proportioning of oneself for calling terminal, after the call ends, in the calling terminal
When reverting to the called state of acquiescence, proportioning is reverted into acquiescence proportioning；
Receiving module sends corresponding reception of subframe for what is adjusted according to ratio of uplink subframe to downlink subframe as a result, existing in opposite end
Frame receives other terminals and is sent to the data of oneself；
Sending module is used to receive the corresponding transmission subframe of subframe as a result, in opposite end existing according to subframe proportioning adjustment, will be certainly
Oneself data are sent to other terminals；
Modulation module, at communication initial stage, being modulated according to fixed MCS and RNTI, after connection setup, according to certainly
Oneself parses for the MCS that opposite end is specified；
Judgment module, for according to blind solution as a result, judging whether there is other terminals is calling oneself, while according to the caller
Subframe after terminal adjustment changes, and what is corresponded to each other between calculating calling and called terminal sends and receives subframe；
After the communication has been established, the data that parsing opposite end is sent judge to select to the MCS of opposite end transmission data.
7. terminal according to claim 6, including：
Proportioning adjustment module for the terminal will active call other terminals when, the ascending-descending subframes for adjusting oneself are matched
Than it is corresponding with subframe is received to there is transmission subframe between realization calling and called terminal each other；Blind solution exists in resource sends son
Frame corresponds；And sending module delivery and reception module is instructed to receive accordingly；The calling terminal after sign off,
Ratio of uplink subframe to downlink subframe reverts to initial proportioning；It is whole to restore called state.
8. terminal according to claim 6, including：
The judgment module is specifically used for finding the mark of oneself in blind solution, the ascending-descending subframes after being changed according to calling terminal
Proportioning calculates the subframe for the transmission data that calling and called terminal corresponds to each other and receives the subframe of data, right according to the RNTI of acquisition
Calling terminal is arranged according to initial MCS, receives the corresponding transmission subframe of subframe there are caller and is replied, and is used in reply
Determine that the MCS of opposite end transmission data next time selects rank.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547984A (en) * | 2012-02-23 | 2012-07-04 | 华为技术有限公司 | Method and device for paging in device-to-device communication |
| CN103368713A (en) * | 2012-03-26 | 2013-10-23 | 中兴通讯股份有限公司 | Device-to-device communication method and device |
| CN104244413A (en) * | 2013-06-14 | 2014-12-24 | 中兴通讯股份有限公司 | Subframe configuration indication method and system in device-to-device (D2D) communication |
| CN104335639A (en) * | 2012-07-02 | 2015-02-04 | 英特尔公司 | Sounding reference signal (SRS) mechanism for intracell device-to-device (D2D) communication |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9456330B2 (en) * | 2013-08-09 | 2016-09-27 | Alcatel Lucent | Two-stage device-to-device (D2D) discovery procedures |
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- 2015-04-21 CN CN201510190003.0A patent/CN104853429B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102547984A (en) * | 2012-02-23 | 2012-07-04 | 华为技术有限公司 | Method and device for paging in device-to-device communication |
| CN103368713A (en) * | 2012-03-26 | 2013-10-23 | 中兴通讯股份有限公司 | Device-to-device communication method and device |
| CN104335639A (en) * | 2012-07-02 | 2015-02-04 | 英特尔公司 | Sounding reference signal (SRS) mechanism for intracell device-to-device (D2D) communication |
| CN104244413A (en) * | 2013-06-14 | 2014-12-24 | 中兴通讯股份有限公司 | Subframe configuration indication method and system in device-to-device (D2D) communication |
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