CN105530591A - Method and device for controlling inter-equipment direct D2D communication and base station - Google Patents
Method and device for controlling inter-equipment direct D2D communication and base station Download PDFInfo
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Abstract
The invention provides a method and a device for controlling inter-equipment direct D2D communication and a base station, relates to the wireless communication field and solves a problem of incapability in mastering D2D communication performance and D2D communication details. The method comprises steps that a terminal supporting the D2D function is configured, and the terminal is made to record D2D communication state information; and the D2D communication state information reported by the terminal is received. The D2D communication details reported by the terminal can be acquired, the D2D communication performance is improved, D2D discovery and communication service which are satisfactory to users are provided, corresponding behaviors of the terminal for the D2D communication can be further mastered and predicted, and the user experience effect is improved.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to the communication control method of a kind of equipment room direct communication D2D, device and base station.
Background technology
Equipment room direct communication (D2D) is the very important characteristic that Long Term Evolution LTE introduced in the R12 stage, and its general principle is exactly the mutual discovery that realizes terminal D 2D by base station auxiliary and intercom mutually.As shown in Figure 1: in existing scheme, mainly solve terminal D 2D how to find and how to communicate.Such as terminal can network auxiliary under (network provides resource pool) carry out sending or receive D2D and find signal, thus realize discovery to each other.Terminal also can network auxiliary under (network provides resource) carry out terminal communication each other.Solve only operator (passing through network) in prior art to find and the control of Radio Resource communicate D2D, but the details etc. that the performance communicated for D2D, terminal communicate about D2D cannot be grasped.So namely, be unfavorable for operator for user provide customer satisfaction system D2D find and communication service, also cannot realize operator grasp to terminal about the D2D corresponding behavior of this characteristic that communicates and predict, also just cannot optimize the service etc. with customization differentiation targetedly.
Summary of the invention
The object of the present invention is to provide the communication control method of a kind of equipment room direct communication D2D, device and base station, solve the problem of the details that performance, the terminal that cannot control D2D communication communicates about D2D.
In order to solve the problems of the technologies described above, the communication control method of a kind of equipment room direct communication D2D that the embodiment of the present invention provides, wherein, comprising:
To supporting that the terminal of D2D function is configured, make the communicate status information of described terminal record D2D;
Receive the communicate status information of the described D2D of described terminal to report.
Further, the communicate status information of described D2D comprises: D2D communication failure information and/or D2D hot information, wherein said D2D communication failure information comprise D2D communication failure instruction, occur D2D communication failure time time and geographical location information; Time when described D2D hot information comprises the instruction of D2D focus, D2D discovery or communicates and geographical location information.
Further, to supporting that the terminal of D2D function is configured, the step of the communicate status information of described terminal record one D2D is comprised: be configured by the terminal of mode to support D2D function of dedicated signaling or broadcast signaling, make the communicate status information of described terminal record D2D.
Wherein, the communication control method of described equipment room direct communication D2D also comprises:
According to described D2D communication failure information, determine that the failed number of times of D2D communication generation is greater than the first area of the first preset value;
D2D communication optimization is carried out to described first area.
Further, the step that D2D communication optimization is carried out in described first area is comprised:
According to described D2D communication failure information, obtain D2D communication failure reason in described first area;
If described D2D communication failure reason is the failure that described Resourse Distribute causes, add the D2D communication resource of D2D communication;
If the D2D communication failure that the power that described D2D communication failure reason is described terminal causes lower than normal operating power, increase corresponding terminal D2D power of communications to the second preset value.
Wherein, the communication control method of described equipment room direct communication D2D also comprises:
According to described D2D hot information, determine that D2D finds to be greater than with the frequency communicated the second area of the 3rd preset value;
D2D communication optimization is carried out to described second area.
Further, the step that described second area carries out D2D communication optimization is comprised:
Add D2D at described second area to find and the resource communicated.
Further, add D2D at described second area to find to comprise with the step of the resource communicated:
By broadcast or dedicated control signaling, the D2D terminal transmission D2D discovery to described second area and the indication information of the resource communicated, use respective resources to carry out D2D communication to make described D2D terminal according to corresponding indication information.
Accordingly, in order to solve the problems of the technologies described above, the embodiment of the present invention also provides the communication control unit of a kind of equipment room direct communication D2D, wherein, comprising:
First processing module, for supporting that the terminal of D2D function is configured, makes the communicate status information of described terminal record D2D;
Receiver module, for receiving the communicate status information of the described D2D of described terminal to report.
Further, the communicate status information of described D2D comprises: D2D communication failure information and/or D2D hot information, wherein said D2D communication failure information comprise D2D communication failure instruction, occur D2D communication failure time time and geographical location information; Time when described D2D hot information comprises the instruction of D2D focus, D2D discovery or communicates and geographical location information.
Further, described first processing module comprises: the first submodule, for the mode by dedicated signaling or broadcast signaling to supporting that the terminal of D2D function is configured, makes the communicate status information of described terminal record one D2D.
Wherein, the communication control unit of described equipment room direct communication D2D also comprises:
Second processing module, for according to described D2D communication failure information, determines that the failed number of times of D2D communication generation is greater than the first area of the first preset value;
3rd processing module, for carrying out D2D communication optimization to described first area.
Further, described 3rd processing module comprises:
Obtain submodule, for according to described D2D communication failure information, obtain D2D communication failure reason in described first area;
First process submodule, if be the failure that described Resourse Distribute causes for described D2D communication failure reason, adds the D2D communication resource of D2D communication;
Second process submodule, if the D2D communication failure caused lower than normal operating power for the described D2D communication failure reason power that is described terminal, increases corresponding terminal D2D power of communications to the second preset value.
Wherein, the communication control unit of described equipment room direct communication D2D also comprises:
4th processing module, for according to described D2D hot information, determines that D2D finds to be greater than with the frequency communicated the second area of the 3rd preset value;
5th processing module, for carrying out D2D communication optimization to described second area.
Further, described 5th processing module comprises: the second submodule, finds and the resource communicated for adding D2D at described second area.
Further, described second submodule comprises:
Processing unit, for the D2D terminal transmission D2D discovery to described second area and the indication information of the resource communicated by broadcast or dedicated control signaling, uses respective resources to carry out D2D communication to make described D2D terminal according to corresponding indication information.
In order to solve the problems of the technologies described above, the embodiment of the present invention also provides a kind of base station, comprises the communication control unit of equipment room direct communication D2D described above.
The beneficial effect of technique scheme of the present invention is as follows:
In the solution of the present invention, by being configured terminal, make terminal can record relevant D2D information and report, thus the details of terminal D 2D communication can be obtained, and then improve D2D communication performance, being embodied as user provides customer satisfaction system D2D to find and communication service, realizes grasping to terminal about the D2D corresponding behavior that communicates and predicting simultaneously, and improves Consumer's Experience effect.
Accompanying drawing explanation
Fig. 1 is the structure chart of the D2D communication of the embodiment of the present invention;
Fig. 2 is the basic flow chart of the communication control method of the equipment room direct communication D2D of the embodiment of the present invention;
Fig. 3 is the flow chart of the first area D2D communication optimization of the communication control method of the equipment room direct communication D2D of the embodiment of the present invention;
Fig. 4 is the basic block diagram of the communication control unit of the equipment room direct communication D2D of the embodiment of the present invention;
Fig. 5 is the structure chart of the first area D2D communication optimization of the communication control unit of the equipment room direct communication D2D of the embodiment of the present invention.
Embodiment
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The present invention is directed in prior art the performance and the details that communicates about D2D of terminal that cannot grasp D2D communication, thus be unfavorable for for user provides customer satisfaction system D2D to find and communication service, also cannot realize grasping to terminal about the D2D corresponding behavior that communicates and predicting, also just cannot optimize the problem with the service of customization differentiation targetedly simultaneously, the communication control method of a kind of equipment room direct communication D2D is provided, device and base station, by being configured terminal, make terminal can record relevant D2D information and report, thus the details of terminal D 2D communication can be obtained, and then improve D2D communication performance, and analyzed by the D2D communication failure information that reports terminal equipment and D2D hot information, thus carry out D2D communication optimization, not only grasp D2D to communicate corresponding behavior, and realize the lifting of D2D communicativeness and the automation optimization of differentiated service can be provided, improve Consumer's Experience effect simultaneously.
As shown in Fig. 1 to 5, the communication control method of the equipment room direct communication D2D of the embodiment of the present invention, wherein, comprising:
Step 11, to supporting that the terminal of D2D function is configured, makes the communicate status information of described terminal record D2D;
Be configured by the terminal of mode to support D2D function of dedicated signaling or broadcast signaling, make the communicate status information of described terminal record D2D.
Step 12, receives the communicate status information of the described D2D of described terminal to report.
Be configured by step 11 pair terminal, make terminal can record relevant D2D information and report, then obtain the communicate status information of D2D by step 12, thus the details of terminal D 2D communication can be obtained, and then improve D2D communication performance.
Particularly, in the communication control method of the equipment room direct communication D2D of another embodiment of the present invention, the communicate status information of described D2D comprises: D2D communication failure information and/or D2D hot information, wherein said D2D communication failure information comprise D2D communication failure instruction, occur D2D communication failure time time and geographical location information; Time when described D2D hot information comprises the instruction of D2D focus, generation D2D finds or communicates and geographical location information.
Wherein said D2D communication failure instruction can show or implicit expression, when terminal attempts carrying out record when interrupting in D2D communication failure or D2D communication process.
The geographical position of the D2D communication failure of wherein said correspondence can be GPS information, or other can provide other assisted class information of terminal geographic position, the signal strength signal intensity of multiple communities that such as terminal measures for network.
The instruction of wherein said D2D focus refers to carries out record when terminal carries out D2D discovery or carry out D2D communication, i.e. terminal transmission or receive when D2D finds signal and carry out record, and is masked as and has carried out D2D discovery; Or carry out record when terminal carries out D2D communication, and be masked as and carried out D2D communication.
Wherein said generation D2D find or communication time geographical position can be GPS information, or other can provide other assisted class information of terminal geographic position, the signal strength signal intensity of multiple communities that such as terminal measures for network.
The relevant information of the D2D communication failure instruction of the terminal record supporting D2D function is configured by the mode of dedicated signaling or broadcast signaling, collect the concrete time of the D2D communication failure of corresponding terminal, place and recorded information thereof, thus the details and performance that terminal communicates about D2D can be grasped in more detail, being embodied as user provides customer satisfaction system D2D to find and communication service.
In order to carry out analyzing and processing to obtaining communicate status information, pointedly satisfied service can be provided for user, in the communication control method of the therefore equipment room direct communication D2D of the embodiment of the present invention, also comprising:
Step 13, according to described D2D communication failure information, determines that the failed number of times of D2D communication generation is greater than the first area of the first preset value;
Wherein said first preset value refers to that for terminal D 2D communication, failed number of times occurring sets a numerical value, or to communicate with surrounding devices and occur to obtain a relative bigger numerical after compared with failed number of times, this numerical value can set as the case may be, when the number of times being greater than the generation of this numbers illustrated failed is more.
According to D2D communication failure information, the D2D communication failure map in its coverage can be drawn out, and D2D is unsuccessfully occurred in more region (i.e. first area) mark.
Step 14, carries out D2D communication optimization to described first area.
Step 13, according to D2D communication failure information, is determined the first area that D2D communication failure information is more, then is carried out the optimization for first area by step 14.Like this can by grasping to terminal about the D2D corresponding behavior of this characteristic that communicates and predict, provide and optimize targetedly and the service of customization differentiation.
As shown in Figure 3, in the communication control method of the equipment room direct communication D2D of another embodiment of the present invention, step 13 comprises:
Step 31, according to described D2D communication failure information, obtains D2D communication failure reason in described first area;
Step 32, if described D2D communication failure reason is the failure that described Resourse Distribute causes, adds the D2D communication resource of D2D communication; The wherein said D2D communication resource comprises running time-frequency resource.
Step 33, if the D2D communication failure that the power that described D2D communication failure reason is described terminal causes lower than normal operating power, increases corresponding terminal D2D power of communications to the second preset value.
Wherein said second preset value refer to allow terminal carry out D2D communication maximum power value or according to required and carry out the performance number that adjusts.
According to combining the D2D communication failure map drawn out, analyze D2D communication failure reason in first area by step 31, if the failure caused because of Resource Allocation in Networks, step 32 item needs to increase the running time-frequency resource for D2D communication of network in this region.If due to the lower D2D communication failure caused of terminal power of network configuration, step 33 network needs to promote the maximum transmission power that the terminal allowed in first area carries out D2D communication, but during configuration of transmit power, consider the pathloss situation of the signal of this arrival base station, region, for ensureing that D2D communication is unlikely to disturb normal cellular communication.Be conducive to for user provides customer satisfaction system D2D to find and communication service like this, also realize grasping to terminal about the D2D corresponding behavior of this characteristic that communicates and predicting, optimize the service with customization differentiation simultaneously targetedly, improve Consumer's Experience effect.
In order to can Consumer's Experience be improved, for user provides enough resources and service, in the communication control method of the therefore equipment room direct communication D2D of the embodiment of the present invention, also comprise:
Step 15, according to described D2D hot information, determines that D2D finds to be greater than with the frequency communicated the second area of the 3rd preset value;
Wherein said 3rd preset value refers to for the numerical value of the discovery of terminal D 2D with the frequency setting of the generation that communicates, or occur to obtain a relative bigger numerical after discovery is compared with the frequency communicated with surrounding devices D2D, this numerical value can set as the case may be, is considered as number of times higher when being greater than this second preset value.
According to D2D hot information, D2D can be drawn out and find the map with the Frequency that communicates, and indicate D2D Communication Highlights (namely frequency is higher) area (i.e. second area) and D2D discovery hot zones (i.e. second area).
Step 16, carries out D2D communication optimization to described second area.
By step 15 according to D2D hot information, determine that D2D finds the second area more with the frequency communicated, then carry out the optimization for second area by step 16.Like this can by grasping to terminal about the D2D corresponding behavior of this characteristic that communicates and predict, provide and optimize targetedly and the service of customization differentiation.
Concrete, in the communication control method of the equipment room direct communication D2D of another embodiment of the present invention, step 16 comprises: step 61, adds D2D find and the resource communicated at described second area.
By finding at generation D2D the resource that the place more with the frequency communicated increases, optimization pointed like this, avoids and occurs the inadequate situation of Resourse Distribute.
In order to can otherness be provided and serve targetedly, in the communication control method of the equipment room direct communication D2D of the embodiment of the present invention, step 61 comprises: step 611, by broadcast or dedicated control signaling, the D2D terminal transmission D2D discovery to described second area and the indication information of the resource communicated, use respective resources to carry out D2D communication to make described D2D terminal according to corresponding indication information.Wherein, described indication information comprises general mode information and special pattern information.
Described special pattern information is compared with described general mode information, for D2D finds to provide more frequency-domain and time-domain resource with communicating, and further comprises area information in special pattern information, area information can be cell ID, also can be other geographical area information (such as a rule or irregular physical regions, the latitude and longitude information etc. on border), the id information of terminal can be comprised in optional special pattern information
The D2D of terminal optimized mistake finds and the communication resource carries out corresponding D2D function, if terminal supports special pattern information configuration mode, if carry Termination ID in the special pattern information of network configuration, and the ID of this terminal has been included in the information of special pattern, then terminal needs to carry out the judgement of special pattern configuration information: when the geographic area namely entered when terminal is included in the geographic area of special pattern configuration, and terminal adopts the running time-frequency resource configuration mode in special pattern.
Automation can find that D2D communication issue is optimized and automation discovery D2D Communication Highlights area like this, and specific aim resource distribution can be carried out by the mode distinguishing geographic area, improve Consumer's Experience.
As shown in Figure 4, to achieve these goals, the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention, wherein, comprising:
First processing module 51, for supporting that the terminal of D2D function is configured, makes the communicate status information of described terminal record D2D;
Receiver module 52, for receiving the communicate status information of the described D2D of described terminal to report.
Be configured by the first processing module 51 pairs of terminals, make terminal can record relevant D2D information and report, then obtain the communicate status information of D2D by receiver module 52, thus the details of terminal D 2D communication can be obtained, and then improve D2D communication performance.
Further, in the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention, the communicate status information of described D2D comprises: D2D communication failure information and/or D2D hot information, wherein said D2D communication failure information comprise D2D communication failure instruction, occur D2D communication failure time time and geographical location information; Time when described D2D hot information comprises the instruction of D2D focus, D2D discovery or communicates and geographical location information.
Further, in the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention, described first processing module 51 comprises: the first submodule, for the mode by dedicated signaling or broadcast signaling to supporting that the terminal of D2D function is configured, make the communicate status information of described terminal record one D2D.
First submodule configures the relevant information of the D2D communication failure instruction of the terminal record supporting D2D function by the mode of dedicated signaling or broadcast signaling, collect the concrete time of the D2D communication failure of corresponding terminal, place and recorded information thereof, thus the details and performance that terminal communicates about D2D can be grasped in more detail, being embodied as user provides customer satisfaction system D2D to find and communication service.
Wherein, the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention also comprises:
Second processing module, for according to described D2D communication failure information, determines that the failed number of times of D2D communication generation is greater than the first area of the first preset value;
3rd processing module, for carrying out D2D communication optimization to described first area.
As shown in Figure 5, in the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention, described 3rd processing module comprises:
Obtain submodule 61, for according to described D2D communication failure information, obtain D2D communication failure reason in described first area;
First process submodule 62, if be the failure that described Resourse Distribute causes for described D2D communication failure reason, adds the D2D communication resource of D2D communication;
Second process submodule 63, if the D2D communication failure caused lower than normal operating power for the described D2D communication failure reason power that is described terminal, increases corresponding terminal D2D power of communications to the second preset value.
Wherein, the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention also comprises:
4th processing module, for according to described D2D hot information, determines that D2D finds to be greater than with the frequency communicated the second area of the 3rd preset value;
5th processing module, for carrying out D2D communication optimization to described second area.
Further, in the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention, described 5th processing module comprises: the second submodule, finds and the resource communicated for adding D2D at described second area.
Further, in the communication control unit of the equipment room direct communication D2D of another embodiment of the present invention, described second submodule comprises:
Processing unit, for the D2D terminal transmission D2D discovery to described second area and the indication information of the resource communicated by broadcast or dedicated control signaling, uses respective resources to carry out D2D communication to make described D2D terminal according to corresponding indication information.
The present invention is directed D2D clean culture, it not D2D broadcasting scenario.For be the scene of competitive resource, not for the scene of conversion Resourse Distribute.
It should be noted that, device provided by the invention is the device of the communication control method corresponding to equipment room direct communication D2D, then all embodiments of said method to the communication control method of equipment room direct communication D2D are all applicable to this device, and all can reach same or analogous beneficial effect.
Accordingly due to the communication control unit of the equipment room direct communication D2D of the embodiment of the present invention, be applied to base station, therefore, the embodiment of the present invention additionally provides a kind of base station, wherein, between the said equipment, the described embodiment that realizes of the communication control unit of direct communication D2D is all applicable in the embodiment of this base station, also can reach identical technique effect.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (17)
1. a communication control method of equipment room direct communication D2D, is characterized in that, comprising:
To supporting that the terminal of D2D function is configured, make the communicate status information of described terminal record D2D;
Receive the communicate status information of the described D2D of described terminal to report.
2. communication control method according to claim 1, it is characterized in that, the communicate status information of described D2D comprises: D2D communication failure information and/or D2D hot information, wherein said D2D communication failure information comprise D2D communication failure instruction, occur D2D communication failure time time and geographical location information; Time when described D2D hot information comprises the instruction of D2D focus, D2D discovery or communicates and geographical location information.
3. communication control method according to claim 1, it is characterized in that, to supporting that the terminal of D2D function is configured, the step of the communicate status information of described terminal record D2D is comprised: be configured by the terminal of mode to support D2D function of dedicated signaling or broadcast signaling, make the communicate status information of described terminal record D2D.
4. communication control method according to claim 2, is characterized in that, also comprises:
According to described D2D communication failure information, determine that the failed number of times of D2D communication generation is greater than the first area of the first preset value;
D2D communication optimization is carried out to described first area.
5. communication control method according to claim 4, is characterized in that, the step of described first area being carried out to D2D communication optimization comprises:
According to described D2D communication failure information, obtain D2D communication failure reason in described first area;
If described D2D communication failure reason is the failure that described Resourse Distribute causes, add the D2D communication resource of D2D communication;
If the D2D communication failure that the power that described D2D communication failure reason is described terminal causes lower than normal operating power, increase corresponding terminal D2D power of communications to the second preset value.
6. communication control method according to claim 2, is characterized in that, also comprises:
According to described D2D hot information, determine that D2D finds to be greater than with the frequency communicated the second area of the 3rd preset value;
D2D communication optimization is carried out to described second area.
7. communication control method according to claim 6, is characterized in that, the step of described second area being carried out to D2D communication optimization comprises:
Add D2D at described second area to find and the resource communicated.
8. communication control method according to claim 7, is characterized in that, adds D2D find to comprise with the step of the resource communicated at described second area:
By broadcast or dedicated control signaling, the D2D terminal transmission D2D discovery to described second area and the indication information of the resource communicated, use respective resources to carry out D2D communication to make described D2D terminal according to corresponding indication information.
9. a communication control unit of equipment room direct communication D2D, is characterized in that, comprising:
First processing module, for supporting that the terminal of D2D function is configured, makes the communicate status information of described terminal record D2D;
Receiver module, for receiving the communicate status information of the described D2D of described terminal to report.
10. communication control unit according to claim 9, it is characterized in that, the communicate status information of described D2D comprises: D2D communication failure information and/or D2D hot information, wherein said D2D communication failure information comprise D2D communication failure instruction, occur D2D communication failure time time and geographical location information; Time when described D2D hot information comprises the instruction of D2D focus, D2D discovery or communicates and geographical location information.
11. communication control units according to claim 9, it is characterized in that, described first processing module comprises: the first submodule, for the mode by dedicated signaling or broadcast signaling to supporting that the terminal of D2D function is configured, makes the communicate status information of described terminal record D2D.
12. communication control units according to claim 10, is characterized in that, also comprise:
Second processing module, for according to described D2D communication failure information, determines that the failed number of times of D2D communication generation is greater than the first area of the first preset value;
3rd processing module, for carrying out D2D communication optimization to described first area.
13. communication control units according to claim 12, is characterized in that, described 3rd processing module comprises:
Obtain submodule, for according to described D2D communication failure information, obtain D2D communication failure reason in described first area;
First process submodule, if be the failure that described Resourse Distribute causes for described D2D communication failure reason, adds the D2D communication resource of D2D communication;
Second process submodule, if the D2D communication failure caused lower than normal operating power for the described D2D communication failure reason power that is described terminal, increases corresponding terminal D2D power of communications to the second preset value.
14. communication control units according to claim 10, is characterized in that, also comprise:
4th processing module, for according to described D2D hot information, determines that D2D finds to be greater than with the frequency communicated the second area of the 3rd preset value;
5th processing module, for carrying out D2D communication optimization to described second area.
15. communication control units according to claim 14, is characterized in that, described 5th processing module comprises: the second submodule, find and the resource communicated for adding D2D at described second area.
16. communication control units according to claim 15, is characterized in that, described second submodule comprises:
Processing unit, for the D2D terminal transmission D2D discovery to described second area and the indication information of the resource communicated by broadcast or dedicated control signaling, uses respective resources to carry out D2D communication to make described D2D terminal according to corresponding indication information.
17. 1 kinds of base stations, is characterized in that, comprise the communication control unit of the equipment room direct communication D2D as described in any one of claim 9 to 16.
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| WO2020221348A1 (en) * | 2019-05-02 | 2020-11-05 | Mediatek Inc. | Radio link monitoring in sidelink communications |
| TWI736240B (en) * | 2019-05-02 | 2021-08-11 | 聯發科技股份有限公司 | Methods for radio link monitoring in sidelink communications, apparatus and computer-readable medium thereof |
| US11438794B2 (en) | 2019-05-02 | 2022-09-06 | Mediatek Inc. | Radio link monitoring in sidelink communications |
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