CN105530595B - A kind of equipment is to equipment communication means and device - Google Patents
A kind of equipment is to equipment communication means and device Download PDFInfo
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- CN105530595B CN105530595B CN201410569300.1A CN201410569300A CN105530595B CN 105530595 B CN105530595 B CN 105530595B CN 201410569300 A CN201410569300 A CN 201410569300A CN 105530595 B CN105530595 B CN 105530595B
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- communication
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Abstract
The embodiment of the invention discloses a kind of D2D communication means and devices, this method comprises: receiving the proprietary D2D resource information and emergency resources pond information of network side distribution using the UE of D2D transmission mode；The performance number of reception signal of the UE measurement from network side, judges whether the performance number is greater than predetermined threshold value, if it does, determining that the UE is in center of housing estate position, otherwise, it is determined that the UE is in cell edge position；For being in the UE of center of housing estate position, determine that the UE be in the duration of preset exception condition and whether reaches preset duration, when reaching preset duration, the UE utilizes emergency resources pond progress D2D communication.The embodiment of the present invention can cause situation interfering with each other to provide solution using identical resource simultaneously for network side and using the UE of D2D transmission mode, improve communication efficiency.
Description
Technical field
This application involves mobile communication technology fields more particularly to a kind of equipment to equipment (D2D) communication means and device.
Background technique
In existing long term evolution (Long Term Evolution, LTE) system, between two user equipmenies (UE)
Data transmission is all to be relayed by network side to realize, that is, transmitting terminal UE first has to communication data being sent to network
Side, network side gives the data forwarding to receiving end UE again later.Even if two are wanted to be communicated apart from close UE, then this
A little communication datas also will can just issue other side by the transmitting of network side.
D2D communication means is proposed aiming at the application scenarios that transmitting terminal UE and receiving end UE are closer, at this point, two
Communication data can be directly transmitted between a UE, and no longer network side is needed to be relayed.It can be reduced using D2D communication means
The transmission power of UE can be effectively reduced additionally due to two UE are closer in the load of network side, to realize energy-efficient mesh
's.
It is hereinafter referred to as original to be relayed by network side in order to be different from the D2D transmission mode of data in D2D communication means
To realize that the mode of data transmission is cellular transmission mode.
In D2D communication means, the method for salary distribution of the D2D communication resource is divided into two kinds:
Mode one: when UE is in the coverage area for supporting the base station (eNB) of D2D communication means, UE passes through proprietary letter
Enable to network request and distribute proprietary D2D resource, which currently only carries out D2D communication use for the UE, that is, not by
Any other UE in addition to the UE is used.
Mode two: when UE is in the coverage area for supporting the eNB of D2D communication means, network side passes through proprietary signaling
Or SIB message distributes resource to all users for carrying out D2D communication, that is, network side marks off D2D communication resource pond, and the D2D is logical
Letter resource pool is communicated dedicated for UE using D2D transmission mode, in other words, is used in the D2D communication resource pond and network
The resource that the UE that cellular transmission mode communicates is utilized does not have intersection.It is using D2D transmission mode and logical using the distribution of which two
All UE of letter resource share the resource pool.When other than UE being in the coverage area for supporting the eNB of D2D communication means, UE is adopted
D2D communication is carried out with the D2D communication resource pond obtained before.
Wherein, when employing mode one is that UE distributes the D2D communication resource, eNB can also distribute an emergency resources for the UE
Pond, UE carry out D2D communication when special circumstances occurs in the communication with eNB, using the emergency resources pond.Currently, the special feelings
Condition includes RRC connection foundation failure or RRC is being rebuild or UE can not receive uplink authorization.
Due to the special circumstances are not frequent appearance and limited communications resources etc., the emergency resources pond
There are intersections for the communication resource usually utilized with the UE using cellular transmission mode.Therefore, it may appear that network side and use D2D
The UE of transmission mode uses identical resource simultaneously, this will influence communication efficiency to interfering each other.
On how to handle this interference to improve communication efficiency, there is presently no specific technical solutions.
Summary of the invention
The present invention provides a kind of equipment to equipment (D2D) communication means and device, for network side and can use D2D
The UE of transmission mode causes situation interfering with each other to provide solution using identical resource simultaneously, improves communication efficiency.
A kind of equipment to equipment communication means, this method comprises:
The proprietary D2D resource information and emergency of network side distribution are received to the UE of equipment (D2D) transmission mode using equipment
Resource pool information；
The performance number of reception signal of the UE measurement from network side, judges whether the performance number is greater than pre-determined threshold
Value, if it does, determining that the UE is in center of housing estate position, otherwise, it is determined that the UE is in cell edge position；
When the UE with network side communication occur preset exception condition when, judge whether the UE is in cell
Heart position, if so, judging that the UE is in the duration of preset exception condition and whether reaches preset duration, when reaching default
When long, the UE carries out D2D communication using the emergency resources pond.
A kind of user equipment (UE), the UE include that the communication resource obtains module, location identification module and D2D communication module；
The communication resource obtains module, for receiving proprietary D2D resource information and the emergency resources pond of network side distribution
Information；
The location identification module judges that the performance number is for measuring the performance number of the reception signal from network side
It is no to be greater than predetermined threshold value, if it does, determining that the UE is in center of housing estate position, otherwise, it determines the UE is in cell edge
Position；
The D2D communication module, for there is preset exception condition and described in the communication with network side as the UE
When UE is in center of housing estate position, determines that the UE is in the duration of preset exception condition and whether reaches preset duration, reaching
When to preset duration, the UE utilizes the emergency resources pond to carry out D2D communication.
The applicant has found that the abnormal conditions of UE, i.e., the described preset state usually all occurs on cell side by analysis
Edge, and when UE is in center of housing estate, then it is seldom abnormal, in case of exception, then can restore to operate normally quickly, due to
There are intersections for the communication resource that the emergency resources pond is usually utilized with the UE using cellular transmission mode, therefore, it may appear that
Network side and the UE of use D2D transmission mode use identical resource simultaneously, answer if enabled when UE is in center of housing estate
Anxious resource pool carries out D2D communication, then stronger uplink interference will be generated with cellular network communication.
Based on above-mentioned analysis, in the embodiment of the present invention, the UE of the D2D communication resource is distributed for employing mode one, passes through knowledge
The position of other UE in the cell is to be in cell edge in center of housing estate, first when it preset exception condition occurs
First judge whether the position of the UE in the cell is in center of housing estate, if being in center of housing estate, when needing etc. scheduled
After length, if UE is detached from the preset state not yet, then enables emergency resources pond and carry out D2D communication.As it can be seen that for being in
The D2D UE of center of housing estate, when it abnormal conditions occurs, only the abnormal conditions have continued scheduled duration, just will start emergency
Resource pool, since the abnormal conditions that the heart occurs in the cell usually can all be restored quickly, in many cases all without enabling
Emergency resources pond, therefore stronger uplink interference is avoided, meanwhile, it, can also be by opening if failing to restore normal for a long time
Dynamic emergency resources pond guarantees going on smoothly for communication, it is seen then that in general, the entirety that the embodiment of the present invention can improve network is logical
Believe effect.
Detailed description of the invention
Fig. 1 is D2D communication means flow chart provided in an embodiment of the present invention.
Fig. 2 is UE structural schematic diagram provided in an embodiment of the present invention.
Specific embodiment
Fig. 1 is D2D communication means first pass figure provided in an embodiment of the present invention.
As shown in Figure 1, the process includes:
Step 101, the proprietary D2D resource information and emergency resources of network side distribution are received using the UE of D2D transmission mode
Pond information.
Step 102, the performance number of reception signal of the UE measurement from network side, it is pre- to judge whether the performance number is greater than
Gating limit value, if it does, determining that the UE is in center of housing estate position, otherwise, it determines the UE is in cell edge position.
Wherein, the predetermined threshold value passes through RRC information or SIB message arrangement by network side, or by UE according to default
Method setting.
In this step, itself location information in the cell can be in center of housing estate position or margin location by UE
It sets, is stored in default memory space.
Step 103, when the UE preset exception condition occurs in the communication with network side and the UE is in cell
When heart position, determine that the UE is in the duration of preset exception condition and whether reaches preset duration, when reaching preset duration,
The UE carries out D2D communication using the emergency resources pond.
Wherein, the preset state may include: RRC connection foundation failure or RRC is being rebuild or UE can not receive uplink
Authorization.
In this step, it can determine that the UE is in the duration of preset exception condition and whether reaches pre- by timer
If duration, specifically:
Start timer, when the UE is detached from preset exception condition, expiration timer, if timer expiry,
Determine that UE is in the duration of preset exception condition and reaches preset duration；Wherein, the timing length of the timer is described pre-
If duration.
Wherein, the timing length of the timer passes through RRC information or SIB message arrangement by network side, or by UE root
It is arranged according to presetting method.
As it can be seen that, for the D2D UE for being in center of housing estate, when it abnormal conditions occurs, only should in method shown in Fig. 1
Abnormal conditions have continued scheduled duration, just will start emergency resources pond, and the abnormal conditions occurred due to the heart in the cell are usually all
It can restore quickly, therefore, in many cases all without enabling emergency resources pond, therefore avoid stronger uplink interference, meanwhile,
If failed to restore for a long time normally, going on smoothly for communication can also be guaranteed by starting emergency resources pond, it is seen then that comprehensive next
It sees, the embodiment of the present invention can improve the integrated communication effect of network.
Further, the embodiment of the present invention proposes, when the UE preset exception condition occurs in the communication with network side
When, if the UE is in cell edge position, the UE can enable the emergency resources pond immediately and carry out D2D communication.
The abnormal conditions of UE occur in cell edge, and since the D2D UE transmission power of cell edge is smaller, network side is not received
Therefore the data that D2D UE is issued even if network and D2D UE use same asset simultaneously, can't generate very big interference,
Therefore, for the UE for being in cell edge position, the progress of emergency resources pond can be enabled immediately if it exception condition occurs
D2D communication.
As it can be seen that the embodiment of the present invention is by the position in the cell identification UE, i.e. identification UE be in center or
In marginal position, emergency resources pond is enabled using different strategies for the UE of different location, can guarantee that generation is different
The communication of the D2D UE of reason condition, which goes on smoothly and reduces, obtains balance between interference, imitates so as to improve the integrated communication of network
Fruit.
Fig. 2 is UE structural schematic diagram provided in an embodiment of the present invention.
As shown in Fig. 2, the UE includes that the communication resource obtains module 201, location identification module 202 and D2D communication module
203。
The communication resource obtains module 201, for receiving the proprietary D2D resource information and emergency resources pond letter of network side distribution
Breath.
Whether location identification module 202 judges the performance number for measuring the performance number of the reception signal from network side
Greater than predetermined threshold value, if it does, determining that the UE is in center of housing estate position, otherwise, it determines the UE is in cell edge position
It sets.
D2D communication module 203, for there is preset exception condition and described in the communication with network side as the UE
When UE is in center of housing estate position, determines that the UE is in the duration of preset exception condition and whether reaches preset duration, reaching
When to preset duration, the UE utilizes the emergency resources pond to carry out D2D communication.
D2D communication module 202, can be used for when the UE with network side communication occur preset exception condition when,
If the UE is in cell edge position, the UE carries out D2D communication using the emergency resources pond.
D2D communication module 202 can be used for starting timer, and when the UE is detached from preset exception condition, it is fixed to terminate
When device, if timer expiry, it is determined that the duration that UE is in preset exception condition reaches preset duration；Wherein, described fixed
When device timing length be the preset duration.
The timing length of the timer passes through RRC information or SIB message arrangement by network side, or by UE according to default
Method setting；
Alternatively, the predetermined threshold value passes through RRC information or SIB message arrangement by network side, or by UE according to default
Method setting.
The preset state includes: RRC connection foundation failure or RRC is being rebuild or UE can not receive uplink authorization.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of equipment is to equipment communication means, which is characterized in that this method comprises:
The proprietary D2D resource information and emergency resources of network side distribution are received to the UE of equipment (D2D) transmission mode using equipment
Pond information；
The performance number of reception signal of the UE measurement from network side, judges whether the performance number is greater than predetermined threshold value, such as
Fruit is greater than, and determines that the UE is in center of housing estate position, otherwise, it is determined that the UE is in cell edge position；
When the UE with network side communication occur preset exception condition when, judge whether the UE is in center of housing estate position
It sets, if so, judging that the UE is in the duration of preset exception condition and whether reaches preset duration, is reaching preset duration
When, the UE carries out D2D communication using the emergency resources pond.
2. the method according to claim 1, wherein when there is preset example in the communication with network side in the UE
When outer state, if the UE is in cell edge position, the UE carries out D2D communication using the emergency resources pond.
3. method according to claim 1 or 2, which is characterized in that determine the UE be in preset exception condition when
Whether length, which reaches preset duration, includes:
Start timer, when the UE is detached from preset exception condition, expiration timer, if timer expiry, it is determined that
The duration that UE is in preset exception condition reaches preset duration；
Wherein, the timing length of the timer is the preset duration.
4. according to the method described in claim 3, it is characterized in that,
The timing length of the timer passes through RRC information or SIB message arrangement by network side, or by UE according to presetting method
Setting；
Alternatively, the predetermined threshold value passes through RRC information or SIB message arrangement by network side, or by UE according to presetting method
Setting.
5. the method according to claim 1, wherein the exception condition include: RRC connection establish failure or
RRC is being rebuild or UE can not receive uplink authorization.
6. a kind of user equipment (UE), which is characterized in that the UE includes that the communication resource obtains module, location identification module and D2D
Communication module；
The communication resource obtains module, for receiving the proprietary D2D resource information and emergency resources pond information of network side distribution；
The location identification module judges whether the performance number is big for measuring the performance number of the reception signal from network side
In predetermined threshold value, if it does, determining that the UE is in center of housing estate position, otherwise, it determines the UE is in cell edge position；
The D2D communication module, for occurring at preset exception condition and the UE as the UE in the communication with network side
When center of housing estate position, determine that the UE is in the duration of preset exception condition and whether reaches preset duration, it is pre- reaching
If when duration, the UE carries out D2D communication using the emergency resources pond.
7. UE according to claim 6, which is characterized in that
The D2D communication module, for occurring at preset exception condition and the UE as the UE in the communication with network side
When cell edge position, D2D communication is carried out using the emergency resources pond.
8. UE according to claim 6 or 7, which is characterized in that
The D2D communication module, for starting timer, when the UE is detached from preset exception condition, expiration timer, such as
Fruit timer expiry, it is determined that the duration that UE is in preset exception condition reaches preset duration；Wherein, the timer is determined
Constantly a length of preset duration.
9. UE according to claim 8, which is characterized in that
The timing length of the timer passes through RRC information or SIB message arrangement by network side, or by UE according to presetting method
Setting；
The predetermined threshold value is arranged by RRC information or SIB message arrangement, or by UE according to presetting method by network side.
10. UE according to claim 6, which is characterized in that the exception condition include: RRC connection establish failure or
RRC is being rebuild or UE can not receive uplink authorization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569300.1A CN105530595B (en) | 2014-10-22 | 2014-10-22 | A kind of equipment is to equipment communication means and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569300.1A CN105530595B (en) | 2014-10-22 | 2014-10-22 | A kind of equipment is to equipment communication means and device |
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| Publication Number | Publication Date |
|---|---|
| CN105530595A CN105530595A (en) | 2016-04-27 |
| CN105530595B true CN105530595B (en) | 2019-02-12 |
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| CN201410569300.1A Expired - Fee Related CN105530595B (en) | 2014-10-22 | 2014-10-22 | A kind of equipment is to equipment communication means and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108449736A (en) * | 2018-02-27 | 2018-08-24 | 努比亚技术有限公司 | A kind of data transmission method, terminal and computer readable storage medium |
| CN111629438B (en) * | 2019-02-27 | 2023-09-26 | 华为技术有限公司 | Resource allocation method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013181421A2 (en) * | 2012-05-31 | 2013-12-05 | Interdigital Patent Holdings, Inc. | Method and apparatus for device-to-device (d2d) mobility in wireless systems |
| WO2014047905A1 (en) * | 2012-09-28 | 2014-04-03 | Telefonaktiebolaget L M Ericsson (Publ) | Method for d2d radiocommunication |
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2014
- 2014-10-22 CN CN201410569300.1A patent/CN105530595B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013181421A2 (en) * | 2012-05-31 | 2013-12-05 | Interdigital Patent Holdings, Inc. | Method and apparatus for device-to-device (d2d) mobility in wireless systems |
| WO2014047905A1 (en) * | 2012-09-28 | 2014-04-03 | Telefonaktiebolaget L M Ericsson (Publ) | Method for d2d radiocommunication |
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Granted publication date: 20190212 Termination date: 20211022 |