CN102695262B - Authorization method and system for realizing direct communication among terminals - Google Patents
Authorization method and system for realizing direct communication among terminals Download PDFInfo
- Publication number
- CN102695262B CN102695262B CN201110069382.XA CN201110069382A CN102695262B CN 102695262 B CN102695262 B CN 102695262B CN 201110069382 A CN201110069382 A CN 201110069382A CN 102695262 B CN102695262 B CN 102695262B
- Authority
- CN
- China
- Prior art keywords
- mobile terminal
- access point
- direct communication
- timing relationship
- terminals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 104
- 238000013475 authorization Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000012790 confirmation Methods 0.000 claims description 15
- 238000010586 diagram Methods 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- GVVPGTZRZFNKDS-JXMROGBWSA-N geranyl diphosphate Chemical compound CC(C)=CCC\C(C)=C\CO[P@](O)(=O)OP(O)(O)=O GVVPGTZRZFNKDS-JXMROGBWSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses an authorization method and a system for realizing direct communication among terminals. An access point conducts scheduling control to the terminals in scheduling including launching timing relationship and a same authorization. And each terminal, according to the scheduling control of the access point, communicates directly with each other instead of through the access point. The method and system of the invention relate to a connection method, a communication authorization, an authorization method and a timing relationship, enabling the terminals to communicate directly under the scheduling control of the access point.
Description
Technical Field
The invention relates to the field of communication, in particular to an authorization method and an authorization system for realizing direct communication between terminals (MT) based on an Access Point (AP).
Background
According to the third generation partnership project (3GPP) specifications, terminals cannot communicate directly with each other or are forwarded through a base station, but only through an Evolved Packet Core (EPC).
At present, after a base station sends an uplink scheduling grant to a terminal, the terminal can only transmit a physical uplink shared channel after K Transmission Time Intervals (TTIs). Wherein K is an integer of not less than 4. As can be seen, the grant delay (time difference from sending to taking effect) is relatively large, and for the application of direct communication between terminals sensitive to delay, the delay is slightly larger.
At present, the grant for sending uplink scheduling to the terminal by the base station is only for a single terminal, and there is no uplink scheduling grant for multiple terminals. In such an application of direct communication between terminals, in addition to authorizing a terminal sending data, a terminal receiving data needs to be authorized so that the terminal receiving data can feed back whether the data is correctly received. However, at present, there is no related technical support, so that a Long Term Evolution (LTE) network cannot support direct and reliable communication between terminals with a small delay.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an authorization method and system for implementing direct communication between terminals, so as to ensure that the terminals can directly communicate under the scheduling control of an access point.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an authorization method for realizing direct communication between terminals, the method comprising:
the access point carries out scheduling control including a transmission timing relation and the same authorization to the terminal; the terminals perform direct communication with each other without passing through the access point according to scheduling control of the access point.
The special subframe in the frame structure involved in the direct communication becomes a subframe for direct communication between terminals through the scheduling control of the access point.
The same authorized content includes the terminal identification of each terminal participating in the direct communication.
For a source mobile terminal and a target mobile terminal participating in direct communication, the timing relationship comprises:
transmitting authorization from the access point to the source mobile terminal to a timing relationship for the source mobile terminal to transmit data;
a timing relationship is transmitted from the access point to the target mobile terminal authorizing the target mobile terminal to issue acknowledgement information for the received data of the direct communication.
In the timing relationship relating to acknowledgement information,
when there are two special subframes in a radio frame, the timing relationship is: the difference between data transmission and confirmation is 5 ms;
when there is a special subframe in a radio frame, the timing relationship is: there is a 10ms difference from data transmission to acknowledgement.
The method further comprises the following steps: communication settings for direct communication between terminals are stipulated in advance before communication;
the communication settings include at least one of: data block size, modulation mode, coding mode, time frequency resource, antenna configuration.
An authorization system for realizing direct communication between terminals comprises an access point and at least two terminals; wherein,
the access point is used for carrying out scheduling control including a transmission timing relation and the same authorization on the terminal;
and the terminals are used for carrying out direct communication without passing through the access point according to the scheduling control of the access point.
The access point is specifically configured to: and forming the special sub-frame in the frame structure involved in the direct communication into the sub-frame for the direct communication between the terminals through scheduling control.
The same authorized content includes the terminal identification of each terminal participating in the direct communication.
For a source mobile terminal and a target mobile terminal participating in direct communication, the timing relationship comprises:
transmitting authorization from the access point to the source mobile terminal to a timing relationship for the source mobile terminal to transmit data;
a timing relationship is transmitted from the access point to the target mobile terminal authorizing the target mobile terminal to issue acknowledgement information for the received data of the direct communication.
In the timing relationship relating to acknowledgement information,
when there are two special subframes in a radio frame, the timing relationship is: the difference between data transmission and confirmation is 5 ms;
when there is a special subframe in a radio frame, the timing relationship is: there is a 10ms difference from data transmission to acknowledgement.
The method and the system of the invention relate to a connection method, a communication authorization method, an authorization method and a time sequence relationship, so that the terminal can directly communicate under the scheduling control of an access point.
Drawings
Fig. 1 is a block diagram of a wireless communication system according to an embodiment of the present invention;
fig. 2 is a frame structure diagram of frame structure type 2 defined by 3 GPP;
fig. 3 is a schematic diagram of the timing relationship from data transmission to acknowledgement in direct communication at uplink and downlink configuration 1;
fig. 4 is a schematic diagram of the timing relationship from data transmission to acknowledgement in direct communication at uplink and downlink configuration 4;
fig. 5 is a simplified flowchart of implementing direct communication between terminals according to an embodiment of the present invention.
Detailed Description
In practical application, the wireless communication system of the present invention includes the following network elements, connection modes between the network elements, communication authorization, authorization methods, and timing relationships:
the wireless communication system includes an access point.
The wireless communication system includes at least two mobile terminals.
The mobile terminal is connected to the access point via an air radio interface. The frame structure of the physical layer of the radio interface uses frame structure type 2 defined by 3GPP TS36.211-a00, as shown in fig. 2.
As can be seen from fig. 2, the time length of one radio frame is 10ms, 10 is equally divided into 10 subframes, and the time length of each subframe is 1 ms. Wherein the first subframe (i.e., the first subframe) is a normal downlink subframe (denoted as subframe # 0); the second subframe is a special subframe (denoted as subframe # 1). The special subframe includes 3 parts: the first part is a downlink pilot time slot (DwPTS), the second part is a Guard Period (GP), and the third part is an uplink pilot time slot (UpPTS).
According to 3GPP TS36.211-a00, in uplink and downlink allocations 0, 1, 2, 6, the seventh subframe (denoted as subframe #6) is also a special subframe. The structure of which is identical to the second sub-frame (special sub-frame).
The special subframe in the above-described frame structure of the wireless communication system can be a subframe for direct communication between terminals by scheduling control of the access point. When terminals communicate directly with each other, data between them need not pass through the access point.
The downlink pilot time slot part of the special sub-frame is used for transmitting data to the source mobile terminal, the guard interval part does not have any signal transmission, and the uplink pilot time slot part is used for transmitting confirmation information to the target mobile terminal.
When the wireless communication system is configured with one access point and a plurality of mobile terminals, the mobile terminals can directly communicate with each other under the scheduling control of the access point.
Scheduling control of the access point includes the access point transmitting the same grant to the source mobile terminal and the target mobile terminal. The authorized content includes a terminal identification of the source mobile terminal and a terminal identification of the target mobile terminal.
The scheduling control of the access point also includes the access point transmitting to the source mobile terminal a timing relationship authorizing the source mobile terminal to transmit data. The data sent by the source mobile terminal is carried out in the downlink pilot frequency time slot of the special sub-frame, and the scheduling authorization sent by the access point is carried out in the conventional downlink sub-frame adjacent to the special sub-frame.
The scheduling control of the access point also includes a timing relationship from the access point transmitting authorization to the target mobile terminal issuing acknowledgement information for the received data of the direct communication. The confirmation information is sent out in the uplink pilot time slot of the nearest next special sub-frame after receiving the scheduling authorization.
Of course, the communication setting for direct communication between terminals may be stipulated in advance before communication; the communication settings include at least one of: data block size, modulation mode, coding mode, time frequency resource, antenna configuration.
By the method, the mobile terminal can carry out direct communication under the control of the access point.
The first embodiment is as follows:
preferred embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
The system configuration and operation flow of this embodiment are described by taking the uplink and downlink configuration 1 (as shown in fig. 3) as an example:
the wireless communication system of the present invention includes an access point.
The wireless communication system includes two mobile terminals.
The mobile terminal is connected to the access point via an air radio interface. The frame structure of the physical layer of the radio interface uses frame structure type 2 defined by 3GPP TS36.211-a00, as shown in fig. 2.
The special subframe in the above-described frame structure of the wireless communication system can be a subframe for direct communication between terminals by scheduling control of the access point. When terminals communicate directly with each other, data between them need not pass through the access point.
The downlink pilot time slot part of the special sub-frame is used for transmitting data to the source mobile terminal, the guard interval part does not have any signal transmission, and the uplink pilot time slot part is used for transmitting confirmation information to the target mobile terminal.
When the wireless communication system is configured with one access point and two mobile terminals, the mobile terminals can directly communicate with each other under the scheduling control of the access point.
Scheduling control of the access point includes the access point transmitting the same grant to the source mobile terminal and the target mobile terminal. The authorized content includes a terminal identification of the source mobile terminal and a terminal identification of the target mobile terminal.
The scheduling control of the access point also includes the timing relationship from the transmission of the grant from the access point to the source mobile terminal to the transmission of data by the source mobile terminal. The data sent by the source mobile terminal is carried out in the downlink pilot frequency time slot of the special sub-frame, and the scheduling authorization sent by the access point is carried out in the conventional downlink sub-frame next to the special sub-frame. As shown in fig. 3, the scheduling grant is transmitted in the first regular downlink subframe of a radio frame. The source mobile terminal sends out data and transmits the data in the downlink pilot time slot of the first special sub-frame.
The scheduling control of the access point also includes a timing relationship from the access point transmitting authorization to the target mobile terminal issuing acknowledgement information for the received data of the direct communication. The confirmation information is sent out in the uplink pilot time slot of the nearest next special sub-frame after receiving the scheduling authorization. As shown in fig. 3, the scheduling grant is transmitted in the first regular downlink subframe of a radio frame. The target mobile terminal sends the confirmation information to be transmitted in the uplink pilot time slot of the second special sub-frame.
The size of data block, modulation mode, coding mode, time frequency resource, antenna configuration, etc. for direct communication between terminals are already defined in advance before communication.
By the method, the mobile terminal can carry out direct communication under the control of the access point.
As can be seen, the connection method, the communication authorization, the authorization method, the timing relationship, and the like according to this embodiment enable the terminal to directly communicate under the scheduling control of the access point. And the time difference from data transmission to acknowledgement is 5 ms. As shown in fig. 3.
The second embodiment is as follows:
the system configuration and operation flow of this embodiment are described by taking the uplink and downlink configuration 4 (as shown in fig. 4) as an example:
the wireless communication system of the present invention includes an access point.
The wireless communication system includes two mobile terminals.
The mobile terminal is connected to the access point via an air radio interface. The frame structure of the physical layer of the radio interface uses frame structure type 2 defined by 3GPP TS36.211-a00, as shown in fig. 2.
The special subframe in the above-described frame structure of the wireless communication system can be a subframe for direct communication between terminals by scheduling control of the access point. When terminals communicate directly with each other, data between them need not pass through the access point.
The downlink pilot time slot part of the special sub-frame is used for transmitting data to the source mobile terminal, the guard interval part does not have any signal transmission, and the uplink pilot time slot part is used for transmitting confirmation information to the target mobile terminal.
When the wireless communication system is configured with one access point and two mobile terminals, the mobile terminals can directly communicate with each other under the scheduling control of the access point.
Scheduling control of the access point includes the access point transmitting the same grant to the source mobile terminal and the target mobile terminal. The authorized content includes a terminal identification of the source mobile terminal and a terminal identification of the target mobile terminal.
The scheduling control of the access point also includes the timing relationship from the transmission of the grant from the access point to the source mobile terminal to the transmission of data by the source mobile terminal. The data sent by the source mobile terminal is carried out in the downlink pilot frequency time slot of the special sub-frame, and the scheduling authorization sent by the access point is carried out in the conventional downlink sub-frame next to the special sub-frame. As shown in fig. 4, the scheduling grant is transmitted in the first regular downlink subframe of a radio frame. The source mobile terminal sends out data and transmits the data in the downlink pilot time slot of the special sub-frame.
The scheduling control of the access point also includes a timing relationship from the access point transmitting authorization to the target mobile terminal issuing acknowledgement information for the received data of the direct communication. The confirmation information is sent out in the uplink pilot time slot of the nearest next special sub-frame after receiving the scheduling authorization. As shown in fig. 4, the scheduling grant is transmitted in the first regular downlink subframe of a radio frame. The target mobile terminal sends the confirmation information to be transmitted in the uplink pilot time slot of the special sub-frame of the next wireless frame.
The size of data block, modulation mode, coding mode, time frequency resource, antenna configuration, etc. for direct communication between terminals are already defined in advance before communication.
By the method, the mobile terminal can carry out direct communication under the control of the access point.
As can be seen, the connection method, the communication authorization, the authorization method, the timing relationship, and the like according to this embodiment enable the terminal to directly communicate under the scheduling control of the access point. And the time difference from data transmission to acknowledgement is 10 ms. As shown in fig. 4.
The third concrete embodiment:
in this embodiment, the system configuration and operation flow are described by taking an example that two source mobile terminals transmit data to one target mobile terminal at the same time in the uplink-downlink configuration 1 (as shown in fig. 3):
the wireless communication system of the present invention includes an access point.
The wireless communication system includes three mobile terminals.
The mobile terminal is connected to the access point via an air radio interface. The frame structure of the physical layer of the radio interface uses frame structure type 2 defined by 3GPP TS36.211-a00, as shown in fig. 2.
The special subframe in the above-described frame structure of the wireless communication system can be a subframe for direct communication between terminals by scheduling control of the access point. When terminals communicate directly with each other, data between them need not pass through the access point.
The downlink pilot time slot part of the special sub-frame is used for transmitting data to the source mobile terminal, the guard interval part does not have any signal transmission, and the uplink pilot time slot part is used for transmitting confirmation information to the target mobile terminal.
When the wireless communication system is configured with one access point and three mobile terminals, the mobile terminals can directly communicate with each other under the scheduling control of the access point.
Scheduling control of the access point includes the access point transmitting the same grant to the source mobile terminal and the target mobile terminal. The authorized content includes a terminal identification of the source mobile terminal and a terminal identification of the target mobile terminal. In this embodiment, there are two source mobile terminals transmitting data to one target mobile terminal at the same time, and thus there are terminal identifications of the two source mobile terminals.
The scheduling control of the access point also includes the timing relationship from the transmission of the grant from the access point to the source mobile terminal to the transmission of data by the source mobile terminal. The data sent by the source mobile terminal is carried out in the downlink pilot frequency time slot of the special sub-frame, and the scheduling authorization sent by the access point is carried out in the conventional downlink sub-frame adjacent to the special sub-frame. As shown in fig. 3, the scheduling grant is transmitted in the first regular downlink subframe of a radio frame. The source mobile terminal sends out data and transmits the data in the downlink pilot time slot of the first special sub-frame.
The scheduling control of the access point also includes a timing relationship from the access point transmitting authorization to the target mobile terminal issuing acknowledgement information for the received data of the direct communication. The confirmation information is sent out in the uplink pilot time slot of the nearest next special sub-frame after receiving the scheduling authorization. As shown in fig. 3, the scheduling grant is transmitted in the first regular downlink subframe of a radio frame. The target mobile terminal sends the confirmation information to be transmitted in the uplink pilot time slot of the second special sub-frame.
The size of data block, modulation mode, coding mode, time frequency resource, antenna configuration, etc. for direct communication between terminals are already defined in advance before communication. In this embodiment, two source mobile terminals each occupy half of the time-frequency resources.
By the method, the mobile terminal can carry out direct communication under the control of the access point.
It can be seen that the connection method, the communication authorization, the authorization method, the timing relationship, and the like according to this embodiment enable the terminal to directly perform multi-party communication under the scheduling control of the access point. And the time difference from data transmission to acknowledgement is 5 ms. As shown in fig. 3.
It should be noted that the wireless communication system described above includes one access point and two or three mobile terminals, which are only examples. In practical application, the number of the access points and the number of the mobile terminals are determined according to practical situations, and only under the same authorization control transmitted by the access points, the terminals can realize direct communication of communication contents without passing through the access points.
As can be seen from the foregoing embodiments, the authorization operation idea for implementing direct communication between terminals may be represented as a flow shown in fig. 5, where the flow includes the following steps:
step 510: the access point performs scheduling control including a transmission timing relationship and the same grant to the terminal.
Step 520: the terminals perform direct communication with each other without passing through the access point according to scheduling control of the access point.
In summary, the authorization technique for implementing direct communication between terminals in the present invention relates to a connection method, a communication authorization, an authorization method, and a timing relationship, so that terminals can directly communicate under the scheduling control of an access point, regardless of the method or the system.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. An authorization method for implementing direct communication between terminals, the method comprising:
the access point carries out scheduling control including a transmitting timing relation and the same authorization on the mobile terminal; each mobile terminal carries out direct communication without passing through the access point according to the scheduling control of the access point;
for a source mobile terminal and a target mobile terminal participating in direct communication, the timing relationship comprises:
a timing relationship is transmitted from the access point to the source mobile terminal authorizing transmission of data to the source mobile terminal.
2. The method according to claim 1, wherein a special subframe in a frame structure involved in the direct communication is a subframe for direct communication between mobile terminals by the scheduling control of the access point.
3. A method according to claim 1 or 2, characterized in that said content of the same authorization comprises the terminal identification of each mobile terminal participating in the direct communication.
4. The method according to claim 1 or 2, wherein the timing relationship further comprises, for a source mobile terminal and a target mobile terminal participating in the direct communication:
a timing relationship is transmitted from the access point to the target mobile terminal authorizing the target mobile terminal to issue acknowledgement information for the received data of the direct communication.
5. The method according to claim 4, characterized in that in the timing relationship relating to acknowledgement information,
when there are two special subframes in a radio frame, the timing relationship is: the difference between data transmission and confirmation is 5 ms;
when there is a special subframe in a radio frame, the timing relationship is: there is a 10ms difference from data transmission to acknowledgement.
6. A method according to claim 1 or 2, characterized in that the method further comprises: communication settings for direct communication between mobile terminals are defined in advance before communication;
the communication settings include at least one of: data block size, modulation mode, coding mode, time frequency resource, antenna configuration.
7. An authorization system for implementing direct communication between terminals, characterized in that the system comprises an access point and at least two mobile terminals; wherein,
the access point is used for carrying out scheduling control including a transmission timing relation and the same authorization on the mobile terminal;
the mobile terminals are used for carrying out direct communication without passing through the access point according to the scheduling control of the access point;
for a source mobile terminal and a target mobile terminal participating in direct communication, the timing relationship comprises:
a timing relationship is transmitted from the access point to the source mobile terminal authorizing transmission of data to the source mobile terminal.
8. The system of claim 7, wherein the access point is specifically configured to: and forming the special sub-frame in the frame structure involved in the direct communication into the sub-frame for the direct communication between the mobile terminals through scheduling control.
9. The system according to claim 7 or 8, wherein the same authorized content comprises the terminal identification of each mobile terminal participating in the direct communication.
10. The system according to claim 7 or 8, wherein the timing relationship further comprises, for a source mobile terminal and a target mobile terminal participating in the direct communication:
a timing relationship is transmitted from the access point to the target mobile terminal authorizing the target mobile terminal to issue acknowledgement information for the received data of the direct communication.
11. The system of claim 10, wherein, in the timing relationship relating to acknowledgement information,
when there are two special subframes in a radio frame, the timing relationship is: the difference between data transmission and confirmation is 5 ms;
when there is a special subframe in a radio frame, the timing relationship is: there is a 10ms difference from data transmission to acknowledgement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069382.XA CN102695262B (en) | 2011-03-22 | 2011-03-22 | Authorization method and system for realizing direct communication among terminals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110069382.XA CN102695262B (en) | 2011-03-22 | 2011-03-22 | Authorization method and system for realizing direct communication among terminals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102695262A CN102695262A (en) | 2012-09-26 |
| CN102695262B true CN102695262B (en) | 2017-05-03 |
Family
ID=46860506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110069382.XA Active CN102695262B (en) | 2011-03-22 | 2011-03-22 | Authorization method and system for realizing direct communication among terminals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102695262B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101425845A (en) * | 2007-11-02 | 2009-05-06 | 大唐移动通信设备有限公司 | Transmission method and apparatus for time division duplexing system |
| WO2009138820A1 (en) * | 2008-05-15 | 2009-11-19 | Nokia Corporation | Methods, apparatuses and computer program products for providing coordination of device to device communication |
| CN101615951A (en) * | 2008-06-25 | 2009-12-30 | 中兴通讯股份有限公司 | The transmission timing method and the device of uplink authorization signaling |
| WO2010049801A1 (en) * | 2008-10-29 | 2010-05-06 | Nokia Corporation | Apparatus and method for dynamic communication resource allocation for device-to-device communications in a wireless communication system |
| CN101843050A (en) * | 2007-10-31 | 2010-09-22 | 高通股份有限公司 | Communications method and apparatus related to traffic scheduling and rate control in a peer to peer communications system |
| WO2010108549A1 (en) * | 2009-03-27 | 2010-09-30 | Nokia Siemens Networks Oy | Apparatus, method and article of manufacture |
-
2011
- 2011-03-22 CN CN201110069382.XA patent/CN102695262B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101843050A (en) * | 2007-10-31 | 2010-09-22 | 高通股份有限公司 | Communications method and apparatus related to traffic scheduling and rate control in a peer to peer communications system |
| CN101425845A (en) * | 2007-11-02 | 2009-05-06 | 大唐移动通信设备有限公司 | Transmission method and apparatus for time division duplexing system |
| WO2009138820A1 (en) * | 2008-05-15 | 2009-11-19 | Nokia Corporation | Methods, apparatuses and computer program products for providing coordination of device to device communication |
| CN101615951A (en) * | 2008-06-25 | 2009-12-30 | 中兴通讯股份有限公司 | The transmission timing method and the device of uplink authorization signaling |
| WO2010049801A1 (en) * | 2008-10-29 | 2010-05-06 | Nokia Corporation | Apparatus and method for dynamic communication resource allocation for device-to-device communications in a wireless communication system |
| WO2010108549A1 (en) * | 2009-03-27 | 2010-09-30 | Nokia Siemens Networks Oy | Apparatus, method and article of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102695262A (en) | 2012-09-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP4120781B1 (en) | Method for controlling semi-persistent scheduling | |
| US11509433B2 (en) | Communication device and communication method | |
| RU2631251C2 (en) | Method of information exchange, base station and user device | |
| CN102045862B (en) | Carrier aggregation realizing method, device and system | |
| WO2018030185A1 (en) | Communication device and communication method | |
| KR102490597B1 (en) | Method and device for transmitting PSFCH in NR V2X | |
| EP3466178B1 (en) | Communications devices and methods | |
| CN104254989A (en) | Method and apparatus for transceiving channel related to terminal that supports half duplex transmission in mobile communication system | |
| CN115280859A (en) | Method and apparatus for performing sidelink communication based on sidelink CG resource in NR V2X | |
| US10201030B2 (en) | Device and method of handling dual connectivity | |
| CN114616877A (en) | Method for identifying transmission resources based on control information in NR V2X and synchronization | |
| CN113475147A (en) | Method and apparatus for performing LTE SL communication based on DCI | |
| US8730892B2 (en) | Method and device for scheduling terminals | |
| CN114762434A (en) | Method and apparatus for transmitting transport blocks in NR V2X | |
| CN109891969B (en) | Scheduling method and device | |
| CN114402638A (en) | Method and apparatus for signaling information related to TDD time slot configuration in NR V2X | |
| CN106357372A (en) | Method and device for avoiding feedback message resource conflict as well as base station and terminal | |
| CN115580380B (en) | Wireless communication method and device | |
| CN114762433A (en) | Method and apparatus for identifying transmission resource based on control information in NR V2X | |
| CN115315978A (en) | Method and apparatus for performing congestion control in NR V2X | |
| US20130229957A1 (en) | System and Method For Device-To-Device Communication | |
| CN111316718B (en) | Carrier aggregation for sidelink communications | |
| CN114902779A (en) | Method and apparatus for transmitting and receiving sidelink data in a communication system | |
| CN114788204A (en) | Method, device and equipment for determining state of HARQ (hybrid automatic repeat request) process | |
| CN102685912B (en) | Realize the method and system of direction communication between terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |