CN104053212A - Transmission method of D2D finding signal and equipment - Google Patents
Transmission method of D2D finding signal and equipment Download PDFInfo
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- CN104053212A CN104053212A CN201310081826.0A CN201310081826A CN104053212A CN 104053212 A CN104053212 A CN 104053212A CN 201310081826 A CN201310081826 A CN 201310081826A CN 104053212 A CN104053212 A CN 104053212A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
Abstract
The invention discloses a transmission method of device-to-device (D2D) finding signal and equipment. The method comprises the following steps that: a base station device determines physical resources occupied by a D2D finding signal; the base station device uses the physical resources to determine sending window information corresponding to the D2D finding signal, wherein the sending window information expresses the offset of the sending window of the D2D finding signal relatively to a cellular signal window corresponding to the physical resources; and the base station device sends the physical resources and the sending window information to first user equipment (UE) and the first UE uses the physical resources and the sending window information to send the D2D finding signal. According to the embodiment of the invention, with utilization of timing windows independent from cellular signal timing windows corresponding to physical resources, the sending windows and the receiving windows of the D2D finding signals can be adjusted flexibly, thereby effectively reducing the physical resources occupied by transmitting and receiving conversion time and improving the resource utilization rate.
Description
Technical field
The present invention relates to communication technical field, especially relate to a kind of D2D(Device to Device, device-to-device) transmission method and the equipment of discovery signals.
Background technology
In traditional cellular telecommunication art, two UE(User Equipment, subscriber equipment) the data communication flow process between can be as shown in Figure 1, and the service needed such as voice-and-data between two UE are base station equipment through resident separately eNB() and core net carry out alternately.Further, D2D technology (being the straight-through technology of terminal) refers to that contiguous UE can directly carry out transfer of data by direct connected link in short range, does not need to forward by Centroid (being eNB), as shown in Figure 2.
Short haul connection feature and the direct communication mode of D2D technology itself make it have following advantage: (1) UE carrying out direct communication in close range can be realized higher data rate, lower delay and lower power consumption; (2) utilize the UE of extensive distribution in network and the short distance feature of D2D communication link, can realize effective utilization of frequency spectrum resource; (3) the direct communication mode of D2D can adapt to demand as shared in the local data of the business such as wireless P2P, and the data, services with flexible adaptation ability is provided; (4) D2D direct communication can utilize the huge and widely distributed UE of quantity in network, expands the coverage of network.
At LTE(Long Term Evolution, Long Term Evolution) in system, D2D technology refers to that being operated in LTE authorizes in frequency range, the D2D communication process that controlled by LTE system; It gives full play to D2D technical advantage, and the control of LTE system can overcome some problems of traditional D2D technology, as disturbs uncontrollable etc.
In prior art, D2D communication process comprises that D2D finds to communicate by letter with D2D; First, UE finds by D2D discovery signals other UE that it is contiguous; Secondly, UE connects laggard row data communication setting up D2D; Wherein, in network coverage, the resource that D2D discovery signals is used is notified to transmitting terminal UE and receiving terminal UE by base station equipment, then make transmitting terminal UE and receiving terminal UE can use the resource of base station equipment configuration to find, and transmitting terminal UE is called and is found UE, receiving terminal UE is called and finds UE.
Be found UE and send D2D discovery signals in the resource of base station equipment configuration, a plurality of discovery UE can receive D2D discovery signals simultaneously in this resource, to find that this is found UE; In addition, be found UE can other resource outside base station equipment resource allocation on, receive the D2D discovery signals of other UE.As shown in Figure 3, sending and receiving schematic diagram for D2D discovery signals, being found UE need to be at OFDM(Orthogonal Frequency Division Multiplexing, OFDM) on symbol 5, send D2D discovery signals, and need on OFDM symbol 3,7,11, receive the D2D discovery signals of other UE.
In realizing process of the present invention, inventor finds at least to exist in prior art following problem:
Restriction due to radio frequency; UE needs certain change-over time (20us) between transmission D2D discovery signals and reception D2D discovery signals; therefore; be found UE while sending D2D discovery signals on OFDM symbol 5; the OFDM symbol 4 of OFDM symbol 5 both sides and OFDM symbol 6 can not be for receiving the D2D discovery signals of other UE; and the protection interval that can only change as transmitting-receiving, thereby reduced resource utilization.
Summary of the invention
The embodiment of the present invention provides a kind of transmission method and equipment of D2D discovery signals, to improve resource utilization.In order to achieve the above object:
The embodiment of the present invention provides a kind of transmission method of device-to-device D2D discovery signals, comprising:
Base station equipment is determined the physical resource that D2D discovery signals takies;
Described base station equipment utilizes described physical resource to determine the send window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the send window that described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Described base station equipment sends to first user equipment UE by described physical resource and send window information, by a described UE, utilizes described physical resource and send window information to send D2D discovery signals.
The embodiment of the present invention provides a kind of transmission method of device-to-device D2D discovery signals, comprising:
Physical resource and send window information corresponding to D2D discovery signals that the D2D discovery signals that first user equipment UE reception base station equipment sends to a UE takies; The skew of the cellular signal window that send window that wherein, described send window information is D2D discovery signals is corresponding with respect to described physical resource;
A described UE utilizes described send window information and cellular signal window corresponding to described physical resource to determine the send window of D2D discovery signals;
A described UE sends D2D discovery signals in the send window of described D2D discovery signals.
The embodiment of the present invention provides a kind of transmission method of device-to-device D2D discovery signals, comprising:
The second user equipment (UE) receives the physical resource that the D2D discovery signals from base station equipment takies;
Described the 2nd UE utilizes cellular signal window that described physical resource is corresponding to determine the receive window of D2D discovery signals; Wherein, there is skew in the cellular signal window that the receive window of described D2D discovery signals is corresponding with respect to described physical resource, or the receive window of described D2D discovery signals has comprised a plurality of windows with the cellular signal window that described physical resource is corresponding;
Described the 2nd UE receives D2D discovery signals on the receive window of described D2D discovery signals.
The embodiment of the present invention provides a kind of base station equipment, comprising:
Determination module, for the physical resource of determining that device-to-device D2D discovery signals takies, and utilize described physical resource to determine the send window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the send window that described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Sending module, for described physical resource and send window information are sent to first user equipment UE, utilizes described physical resource and send window information to send D2D discovery signals by a described UE.
The embodiment of the present invention provides a kind of subscriber equipment, comprising:
Receiver module, the physical resource and send window information corresponding to D2D discovery signals that for the D2D discovery signals receiving from base station equipment, take; The skew of the cellular signal window that send window that wherein, described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Determination module, for utilizing cellular signal window that described send window information and described physical resource are corresponding to determine the send window of D2D discovery signals;
Sending module, for sending D2D discovery signals in the send window at described D2D discovery signals.
The embodiment of the present invention provides a kind of subscriber equipment, comprising:
The first receiver module, the physical resource taking for the D2D discovery signals receiving from base station equipment;
Determination module, for utilizing cellular signal window that described physical resource is corresponding to determine the receive window of D2D discovery signals; Wherein, there is skew in the cellular signal window that the receive window of described D2D discovery signals is corresponding with respect to described physical resource, or the receive window of described D2D discovery signals has comprised a plurality of signal receive windows with the cellular signal window that described physical resource is corresponding;
The second receiver module, for receiving D2D discovery signals on the receive window at described D2D discovery signals.
Compared with prior art, the embodiment of the present invention at least has the following advantages: in the embodiment of the present invention, by adopting independently timing window of the cellular signal timing window (be send window and receive window) corresponding with physical resource, can adjust flexibly send window and the receive window of D2D discovery signals, thereby can effectively reduce shared physical resource transmitting-receiving change-over time, and improve resource utilization.
Accompanying drawing explanation
For technical scheme of the present invention is more clearly described, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is that in prior art, the service needed such as voice-and-data between two UE are base station equipment through resident separately eNB() and core net carry out mutual schematic diagram;
Fig. 2 is that in prior art, the business such as voice-and-data between two UE are directly carried out transfer of data by direct connected link, does not need the schematic diagram forwarding by Centroid (being eNB);
Fig. 3 is the sending and receiving schematic diagram of D2D discovery signals in prior art;
Fig. 4 is the transmission method schematic flow sheet of the D2D discovery signals of the embodiment of the present invention one proposition;
Fig. 5 is the transmission schematic diagram of the D2D discovery signals of the embodiment of the present invention two propositions;
Fig. 6 is the transmission schematic diagram of the D2D discovery signals of the embodiment of the present invention three propositions;
Fig. 7 is the structural representation of the base station equipment of the embodiment of the present invention four propositions;
Fig. 8 is the structural representation of the subscriber equipment of the embodiment of the present invention five propositions;
Fig. 9 is the structural representation of the another kind of subscriber equipment of the embodiment of the present invention six propositions.
Embodiment
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
For problems of the prior art, the embodiment of the present invention one provides a kind of transmission (being the sending and receiving of D2D discovery signals) method of D2D discovery signals, by adopting independently timing window of the cellular signal timing window (be send window and receive window) corresponding with physical resource, can adjust flexibly send window and the receive window of D2D discovery signals, thereby can effectively reduce shared physical resource transmitting-receiving change-over time, and improve resource utilization; As shown in Figure 4, the method comprises the following steps:
Step 401, base station equipment is determined the physical resource that D2D discovery signals takies; As: base station equipment determines that the physical resource that D2D discovery signals takies is OFDM symbol 5.
Step 402, base station equipment utilizes this physical resource to determine the send window information that D2D discovery signals is corresponding; In the embodiment of the present invention, this send window information is specially the skew of the cellular signal window that the send window of D2D discovery signals is corresponding with respect to physical resource.
Wherein, this skew can be concrete side-play amount (as 1/2OFDM symbol etc.), and now, send window information is the side-play amount of the cellular signal window that the send window of D2D discovery signals is corresponding with respect to physical resource; Or, this skew can be for concrete skew indication be (as identified 0,1 etc.), now, send window information is the skew indication of the cellular signal window that the send window of D2D discovery signals is corresponding with respect to physical resource, this skew indication can indicate whether to exist skew, and when there is skew the side-play amount of indicating predetermined justice, as by the side-play amount 1/2OFDM symbol of sign 0 indicating predetermined justice.
In a kind of preferred implementation, send window information can be that 1 bit sends regularly indication information, when send window information is the first sign when (as identified 0), represents that the skew of the cellular signal window corresponding with respect to physical resource is 0; When send window information is the second sign when (as identified 1), represent that the skew of the cellular signal window corresponding with respect to physical resource is 1/2OFDM symbol.Or,
Send window information can be that 1 bit sends regularly indication information, when send window information is the first sign when (as identified 0), represents the cellular signal window not skew corresponding with respect to physical resource; When send window information is the second sign when (as identified 1), represent that the cellular signal window corresponding with respect to physical resource exists skew, its deviant can be made an appointment by base station equipment and UE.Or,
Send window information can be that 2 bits send regularly indication informations, when send window information is the first sign when (as identified 00), represents that the skew of the cellular signal window corresponding with respect to physical resource is 0; When send window information is the second sign when (as identified 01), represent that the skew of the cellular signal window corresponding with respect to physical resource is 1/3OFDM symbol; When send window information is the 3rd sign (as identified 10), represent that the skew of the cellular signal window corresponding with respect to physical resource is 1/2OFDM symbol; When send window information is the 4th sign (as identified 11), represent that the skew of the cellular signal window corresponding with respect to physical resource is 2/3OFDM symbol.Or,
Send window information can be that 2 bits send regularly indication informations, when send window information is the first sign when (as identified 00), represents the cellular signal window not skew corresponding with respect to physical resource; When send window information is that the second sign (as identified 01), the 3rd sign (as identified 10) and the 4th are while identifying (as identified 11), there is skew in the expression cellular signal window corresponding with respect to physical resource, its deviant can be made an appointment by base station equipment and UE.
In the embodiment of the present invention, the send window information that base station equipment utilizes physical resource to determine that D2D discovery signals is corresponding specifically comprises: the D2D discovery signals transmitting-receiving situation on adjacent other physical resource of the physical resource that base station equipment takies according to D2D discovery signals and described physical resource, determine the send window information that D2D discovery signals is corresponding.
Concrete, other D2D discovery signals on other physical resource of the physical resource that base station equipment takies according to D2D discovery signals or this physical resource vicinity or the transmitting-receiving situation of cellular signal, determine the send window information that D2D discovery signals is corresponding; Be that base station equipment can, according to a UE or the 2nd UE D2D discovery signals or cellular signal transmitting-receiving situation on physical resource, be determined the send window information that D2D discovery signals is corresponding.
For example, the physical resource taking when D2D discovery signals is OFDM symbol 5, and when a UE need to receive the D2D discovery signals of other UE on OFDM symbol 3 and 6, base station equipment determines that the skew of the cellular signal window that the send window of D2D discovery signals is corresponding with respect to physical resource (OFDM symbol 5) can be 1/2OFDM symbol; The physical resource taking when D2D discovery signals is OFDM symbol 5, and when a UE need to receive the D2D discovery signals of other UE on OFDM symbol 3 and 7, base station equipment determines that the skew of the cellular signal window that the send window of D2D discovery signals is corresponding with respect to physical resource (OFDM symbol 5) can be 0, and the send window of D2D discovery signals is offset.
Step 403, base station equipment sends to a UE by physical resource and send window information.
In the embodiment of the present invention, base station equipment can send to physical resource by identical message the one UE together with send window information; Or base station equipment can also send to respectively a UE by physical resource and send window information by different message.
In the embodiment of the present invention, base station equipment also needs the physical resource (as OFDM symbol 5) that D2D discovery signals is taken to send to the 2nd UE, to indicate the 2nd UE to carry out the reception of D2D discovery signals.
Wherein, a UE is for being found UE, and the 2nd UE is for finding UE.
Step 404, a UE receives physical resource and send window information corresponding to D2D discovery signals that the D2D discovery signals from base station equipment takies; Wherein, the skew of the cellular signal window that the send window that this send window information is D2D discovery signals is corresponding with respect to physical resource, and this cellular signal window can be a UE by the send window with the definite cellular signal of cellular cell uplink synchronous; Or this cellular signal window can be a UE by the receive window with the definite cellular signal of cellular cell down-going synchronous.
Step 405, a UE utilizes send window information and the corresponding cellular signal window of physical resource to determine the send window of D2D discovery signals, and in this send window, sends D2D discovery signals.
For example, when send window information is 1 bit transmission timing indication information, if send window information is the first sign, the skew that represents the cellular signal window that send window is corresponding with respect to physical resource is 0, and a UE sends D2D discovery signals in cellular signal window corresponding to physical resource; If send window information is the second sign, the skew that represents the cellular signal window that send window is corresponding with respect to physical resource is 1/2OFDM symbol, and a UE is offset left and in the window after 1/2OFDM symbol, sends D2D discovery signals at cellular signal window corresponding to physical resource.
When send window information is 2 bits transmission timing indication information, if send window information is the first sign, the skew that represents the cellular signal window that send window is corresponding with respect to physical resource is 0, and a UE sends D2D discovery signals in cellular signal window corresponding to physical resource; If send window information is the second sign, the skew that represents the cellular signal window that send window is corresponding with respect to physical resource is 1/3OFDM symbol, and a UE is offset left and in the window after 1/3OFDM symbol, sends D2D discovery signals at the corresponding cellular signal window of physical resource.
Said process is the processing procedure of a UE, further, for the processing procedure of the 2nd UE, in the method that the embodiment of the present invention provides, can also comprise the following steps:
Step 406, the 2nd UE receives the physical resource that the D2D discovery signals from base station equipment takies, utilize the cellular signal window that this physical resource is corresponding to determine the receive window of D2D discovery signals, and on the receive window of D2D discovery signals, receive D2D discovery signals.
Wherein, there is skew in the cellular signal window that the receive window of this D2D discovery signals is corresponding with respect to physical resource, or the receive window of this D2D discovery signals has comprised a plurality of signal receive windows with the cellular signal window that this physical resource is corresponding.
In the embodiment of the present invention, this cellular signal window can be the 2nd UE by the receive window with the definite cellular signal of cellular cell down-going synchronous, or the 2nd UE is by the send window with the definite cellular signal of cellular cell uplink synchronous.
In the embodiment of the present invention, the 2nd UE detects D2D discovery signals on the receive window of D2D discovery signals, specifically include but not limited to following mode: the 2nd UE carries out Serial relation operation to the D2D discovery signals receiving in the receive window of D2D discovery signals, and determine whether to find a UE according to correlation (being Serial relation operating result), and the actual arrival window of D2D discovery signals.
In the embodiment of the present invention, the 2nd UE utilizes cellular signal window that physical resource is corresponding to determine the receive window of D2D discovery signals, specifically includes but not limited to following mode:
Mode one, base station equipment are after the send window information of utilizing physical resource to determine that D2D discovery signals is corresponding, according to send window information corresponding to D2D discovery signals, determine the receive window information that D2D discovery signals is corresponding (skew of the cellular signal window that the receive window that this receive window information is D2D discovery signals is corresponding with respect to physical resource), and this receive window information is sent to the 2nd UE; Further, the 2nd UE, after receiving the receive window information that D2D discovery signals is corresponding, utilizes cellular signal window that this receive window information and physical resource are corresponding to determine the receive window of D2D discovery signals.
In the embodiment of the present invention, base station equipment can send to physical resource by identical message the 2nd UE together with receive window information; Or base station equipment can also send to respectively the 2nd UE by physical resource and receive window information by different message.
In a kind of preferred implementation, receive window information can be that 1 bit receives regularly indication information, when receive window information is the first sign when (as identified 0), represents that the skew of the cellular signal window corresponding with respect to physical resource is 0; When receive window information is the second sign when (as identified 1), represent that the skew of the cellular signal window corresponding with respect to physical resource is 1/2OFDM symbol.Or,
Receive window information can be that 1 bit receives regularly indication information, when receive window information is the first sign when (as identified 0), represents the cellular signal window not skew corresponding with respect to physical resource; When receive window information is the second sign when (as identified 1), represent that the cellular signal window corresponding with respect to physical resource exists skew, its deviant can be made an appointment by base station equipment and UE.Or,
Receive window information can be that 2 bits receive regularly indication informations, when receive window information is the first sign when (as identified 00), represents that the skew of the cellular signal window corresponding with respect to physical resource is 0; When receive window information is the second sign when (as identified 01), represent that the skew of the cellular signal window corresponding with respect to physical resource is 1/3OFDM symbol; When receive window information is the 3rd sign (as identified 10), represent that the skew of the cellular signal window corresponding with respect to physical resource is 1/2OFDM symbol; When receive window information is the 4th sign (as identified 11), represent that the skew of the cellular signal window corresponding with respect to physical resource is 2/3OFDM symbol.Or,
Receive window information can be that 2 bits receive regularly indication informations, when receive window information is the first sign when (as identified 00), represents the cellular signal window not skew corresponding with respect to physical resource; When receive window information is that the second sign (as identified 01), the 3rd sign (as identified 10) and the 4th are while identifying (as identified 11), be shown in the cellular signal window that relative physical resource is corresponding and have skew, its deviant can be made an appointment by base station equipment and UE.
In the embodiment of the present invention, base station equipment can directly determine that receive window information that D2D discovery signals the is corresponding send window information corresponding with D2D discovery signals is identical; For example, when send window information is that 1 bit sends regularly indication information, when receive window information is 1 bit reception timing indication information, if send window information is the second sign, base station equipment determines that receive window information is the second sign, the skew that is the cellular signal window that receive window is corresponding with respect to physical resource is 1/2OFDM symbol, and the 2nd UE determines that the window that cellular signal window that physical resource is corresponding is offset after 1/2OFDM symbol is the receive window of D2D discovery signals left; When send window information is that 2 bits send regularly indication information, when receive window information is 2 bits reception timing indication information, if send window information is the second sign, base station equipment determines that receive window information is the second sign, the skew that is the cellular signal window that receive window is corresponding with respect to physical resource is 1/3OFDM symbol, and the 2nd UE determines that the window that cellular signal window that physical resource is corresponding is offset after 1/3OFDM symbol is the receive window of D2D discovery signals left.
If the 2nd UE and a UE carry out timing according to synchronizeing with base station equipment, due to the 2nd UE and base station equipment distance and be found different with base station equipment distance, therefore can cause a UE to send between D2D discovery signals and the 2nd UE reception D2D discovery signals and have certain timing error; Based on this, in the embodiment of the present invention, base station equipment is when utilizing send window information that D2D discovery signals is corresponding to determine receive window information corresponding to D2D discovery signals, it is also conceivable that this timing error, make the 2nd UE when receive window corresponding to D2D discovery signals receives D2D discovery signals, can accurately receive the D2D discovery signals that a UE sends in send window corresponding to D2D discovery signals.
Mode two, the 2nd UE determine that the receive window of D2D discovery signals is the cellular signal window that physical resource is corresponding, and cellular signal window corresponding to part physical resource adjacent with this physical resource; Now, the receive window of this D2D discovery signals has comprised a plurality of windows with the cellular signal window that this physical resource is corresponding.
Concrete, the 2nd UE can directly determine that the receive window of D2D discovery signals comprises: a part of time-domain resource of the OFDM symbol at D2D discovery signals place (being physical resource) and these OFDM symbol both sides (as: 2/3OFDM symbol or 1/2OFDM symbol or 1 OFDM symbol etc.).
Mode three, the 2nd UE determine that the receive window of D2D discovery signals is according to cellular signal window corresponding to physical resource and the definite a plurality of signal receive windows of predefined window offset value; Now, the receive window of D2D discovery signals comprises a plurality of windows with the cellular signal window that this physical resource is corresponding.
Concrete, the 2nd UE directly determines that the receive window of D2D discovery signals is several available receive windows of making an appointment; For example, this available receive window can be: the cellular signal time window that the OFDM symbol at D2D discovery signals place (being physical resource) is corresponding, or, 1/2 OFDM symbol of this OFDM symbol time window skew, or, 2/3 OFDM symbol of this OFDM symbol time window skew etc.
In the embodiment of the present invention, after the 2nd UE receives D2D discovery signals on the receive window of D2D discovery signals, the 2nd UE can also determine according to the reception result of D2D discovery signals the actual arrival window (i.e. the 2nd UE using the window that D2D discovery signals detected directly as the actual arrival window of D2D discovery signals) of D2D discovery signals, and according to the definite receive window (the 2nd UE is directly direct as the receive window that receives this D2D discovery signals next time using the actual arrival window of D2D discovery signals) that receives D2D discovery signals of the actual arrival window of this D2D discovery signals next time.
In the embodiment of the present invention, the 2nd UE receives D2D discovery signals and comprises on the receive window of D2D discovery signals: when the receive window of D2D discovery signals for according to cellular signal window corresponding to physical resource and predefined window offset value, determine a plurality of signal receive window time, the 2nd UE carries out the reception of D2D discovery signals respectively in described a plurality of signal receive windows, to determine the actual arrival window of D2D discovery signals.
In sum, in the embodiment of the present invention, by the flexible adjustment of send window and receive window, can effectively reduce the shared physical resource of transmitting-receiving conversion, do not need to vacate complete OFDM symbol as protection interval for transmitting-receiving conversion, thereby improved resource utilization; For example: only have two OFDM symbols when sending, also can support the transmission of the D2D discovery signals of 1 OFDM symbol lengths.Further, base station equipment can be when indication send window and receive window, the timing error owing to causing apart from difference with base station equipment is included in indication information, thereby makes up this timing error.
Below in conjunction with concrete application scenarios, the embodiment of the present invention is elaborated.
Embodiment bis-
The embodiment of the present invention two provides a kind of transmission method of D2D discovery signals, and the transmission schematic diagram of the D2D discovery signals shown in Fig. 5 of take is elaborated as example.
For step 401 and step 402, base station equipment is determined physical resource and send window information corresponding to D2D discovery signals that D2D discovery signals is shared; As shown in Figure 5, D2D discovery signals takies OFDM symbol 5, and the send window of D2D discovery signals shifts to an earlier date half OFDM symbol with respect to cellular signal window.
For step 403, base station equipment is regularly notified D2D discovery signals physical resource used and transmission for determining send window to a UE together with indication information; This transmission regularly indication information is 1 bit information, and the send window of indication D2D discovery signals is with respect to cellular signal window offset 1/2OFDM symbol (indicating status 1) or do not have skew (indicating status 0), and now sending regularly indication information is 1.
In addition, base station equipment can also regularly be notified D2D discovery signals physical resource used and reception for determining receive window to the 2nd UE together with indication information; This reception regularly indication information is 1 bit information, and the receive window of indication D2D discovery signals is with respect to cellular signal window offset 1/2OFDM symbol (indicating status 1) or do not have skew (indicating status 0), and now sending regularly indication information is 1.
For step 404 and step 405, the one UE receives the physical resource of base station equipment and sends regularly indication information, according to the physical resource and the send window (position as shown in Figure 5) that send regularly indication information and determine D2D discovery signals, and send D2D discovery signals in self definite send window.
For step 406, the 2nd UE receives the physical resource of base station equipment and receives regularly indication information, according to this reception regularly indication information determine physical resource and the receive window (position as shown in Figure 5) of D2D discovery signals, and receive discovery signals in self definite receive window.
Embodiment tri-
The embodiment of the present invention three provides a kind of transmission method of D2D discovery signals, and the transmission schematic diagram of the D2D discovery signals shown in Fig. 6 of take is elaborated as example.
For step 401 and step 402, base station equipment is determined physical resource and send window information corresponding to D2D discovery signals that D2D discovery signals takies; As shown in Figure 6, D2D discovery signals takies OFDM symbol 9, and the send window of D2D discovery signals shifts to an earlier date 2/3 OFDM symbol with respect to cellular signal window.
For step 403, the physical resource that base station equipment is used D2D discovery signals and transmission for determining send window are regularly notified to a UE together with indication information; This transmission regularly indication information is 2 bit informations, and the send window that is used to indicate D2D discovery signals with respect to cellular signal window offset 2/3OFDM symbol (indicating status 11) or, skew 1/2OFDM symbol (indicating status 10) or, skew 1/3OFDM symbol (indicating status 01) or, there is not skew (indicating status 00); Under the application scenarios shown in Fig. 6, this sends regularly indication information can be 11.
In addition, base station equipment can also be notified D2D discovery signals physical resource used to the 2nd UE.
For step 404 and step 405, the one UE receives the physical resource of base station equipment and sends regularly indication information, according to the physical resource and the send window (position as shown in Figure 6) that send regularly indication information and determine D2D discovery signals, and send D2D discovery signals in self definite send window.
For step 406, the 2nd UE receives the physical resource indication information of base station equipment, determines the physical resource of D2D discovery signals according to this physical resource indication information, and OFDM symbol 9; According to predetermined rule, determine the receive window of D2D discovery signals, the receive window of this D2D discovery signals is two available receive windows of making an appointment: by the time window of the synchronous definite OFDM symbol 9 of base station equipment, or the skew of the time window of OFDM symbol 9 2/3 OFDM symbol, as shown in Figure 6 receive window 2 and 1.In two available receive windows determining, detect respectively D2D discovery signals, by Serial relation, determine D2D discovery signals is in which receive window, and determined D2D discovery signals is arrived to window as the receive window that receives this D2D discovery signals next time.As shown in Figure 6, the 2nd UE detects D2D discovery signals in receive window 1, and this D2D discovery signals of follow-up reception all carries out in receive window 1.
Embodiment tetra-
Inventive concept based on same with said method, also provides a kind of base station equipment in the embodiment of the present invention, as shown in Figure 7, this equipment comprises:
Determination module 11, for the physical resource of determining that device-to-device D2D discovery signals takies, and utilize described physical resource to determine the send window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the send window that described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Sending module 12, for described physical resource and send window information are sent to first user equipment UE, utilizes described physical resource and send window information to send D2D discovery signals by a described UE.
Described determination module 11, also for determining according to send window information corresponding to described D2D discovery signals the receive window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the receive window that described receive window information is D2D discovery signals is corresponding with respect to described physical resource;
Described sending module 12, also for described physical resource and receive window information are sent to the 2nd UE, utilizes described physical resource and receive window information to receive D2D discovery signals by described the 2nd UE.
Described determination module 11, specifically for the D2D discovery signals transmitting-receiving situation on the physical resource that takies according to D2D discovery signals and adjacent other physical resource of described physical resource, determines the send window information that D2D discovery signals is corresponding.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Embodiment five
Inventive concept based on same with said method, also provides a kind of subscriber equipment in the embodiment of the present invention, as shown in Figure 8, this equipment comprises:
Receiver module 21, the physical resource and send window information corresponding to D2D discovery signals that for the D2D discovery signals receiving from base station equipment, take; The skew of the cellular signal window that send window that wherein, described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Determination module 22, for utilizing cellular signal window that described send window information and described physical resource are corresponding to determine the send window of D2D discovery signals;
Sending module 23, for sending D2D discovery signals in the send window at described D2D discovery signals.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Embodiment six
Inventive concept based on same with said method, also provides a kind of subscriber equipment in the embodiment of the present invention, as shown in Figure 9, this equipment comprises:
The first receiver module 31, the physical resource taking for the D2D discovery signals receiving from base station equipment;
Determination module 32, for utilizing cellular signal window that described physical resource is corresponding to determine the receive window of D2D discovery signals; Wherein, there is skew in the cellular signal window that the receive window of described D2D discovery signals is corresponding with respect to described physical resource, or the receive window of described D2D discovery signals has comprised a plurality of signal receive windows with the cellular signal window that described physical resource is corresponding;
The second receiver module 33, for receiving D2D discovery signals on the receive window at described D2D discovery signals.
Described determination module 32, receive window information corresponding to D2D discovery signals sending specifically for receiving described base station equipment, the skew of the cellular signal window that the receive window that described receive window information is D2D discovery signals is corresponding with respect to described physical resource; And, utilize cellular signal window that described receive window information and described physical resource are corresponding to determine the receive window of D2D discovery signals; Or the receive window of determining D2D discovery signals is the cellular signal window that described physical resource is corresponding, and, cellular signal window corresponding to part physical resource adjacent with described physical resource; Or the receive window of determining D2D discovery signals is according to cellular signal window corresponding to described physical resource and the definite a plurality of signal receive windows of predefined window offset value.
Described the second receiver module 33, while being specifically for the receive window when D2D discovery signals a plurality of signal receive window of determining according to cellular signal window corresponding to described physical resource and predefined window offset value, in described a plurality of signal receive windows, carry out the reception of D2D discovery signals respectively, to determine the actual arrival window of D2D discovery signals.
Described determination module 32, also for receiving on the receive window at D2D discovery signals after D2D discovery signals, determines the receive window that next time receives D2D discovery signals according to the actual arrival window of D2D discovery signals.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separatedly dispose.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in a storage medium, comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (16)
1. a transmission method for device-to-device D2D discovery signals, is characterized in that, comprising:
Base station equipment is determined the physical resource that D2D discovery signals takies;
Described base station equipment utilizes described physical resource to determine the send window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the send window that described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Described base station equipment sends to first user equipment UE by described physical resource and send window information, by a described UE, utilizes described physical resource and send window information to send D2D discovery signals.
2. the method for claim 1, is characterized in that, after described base station equipment is utilized the send window information that described physical resource determines that D2D discovery signals is corresponding, described method also comprises:
Described base station equipment determines according to send window information corresponding to described D2D discovery signals the receive window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the receive window that described receive window information is D2D discovery signals is corresponding with respect to described physical resource;
Described base station equipment sends to the 2nd UE by described physical resource and receive window information, by described the 2nd UE, utilizes described physical resource and receive window information to receive D2D discovery signals.
3. the method for claim 1, is characterized in that, described base station equipment utilizes described physical resource to determine the send window information that D2D discovery signals is corresponding, comprising:
D2D discovery signals transmitting-receiving situation on adjacent other physical resource of the physical resource that described base station equipment takies according to D2D discovery signals and described physical resource, determines the send window information that D2D discovery signals is corresponding.
4. a transmission method for device-to-device D2D discovery signals, is characterized in that, comprising:
Physical resource and send window information corresponding to D2D discovery signals that the D2D discovery signals that first user equipment UE reception base station equipment sends to a UE takies; The skew of the cellular signal window that send window that wherein, described send window information is D2D discovery signals is corresponding with respect to described physical resource;
A described UE utilizes described send window information and cellular signal window corresponding to described physical resource to determine the send window of D2D discovery signals;
A described UE sends D2D discovery signals in the send window of described D2D discovery signals.
5. a transmission method for device-to-device D2D discovery signals, is characterized in that, comprising:
The second user equipment (UE) receives the physical resource that the D2D discovery signals from base station equipment takies;
Described the 2nd UE utilizes cellular signal window that described physical resource is corresponding to determine the receive window of D2D discovery signals; Wherein, there is skew in the cellular signal window that the receive window of described D2D discovery signals is corresponding with respect to described physical resource, or the receive window of described D2D discovery signals has comprised a plurality of signal receive windows with the cellular signal window that described physical resource is corresponding;
Described the 2nd UE receives D2D discovery signals on the receive window of described D2D discovery signals.
6. method as claimed in claim 5, is characterized in that, described the 2nd UE utilizes cellular signal window that described physical resource is corresponding to determine the receive window of D2D discovery signals, comprising:
Described the 2nd UE receives receive window information corresponding to D2D discovery signals that described base station equipment sends to described the 2nd UE, the skew of the cellular signal window that the receive window that described receive window information is D2D discovery signals is corresponding with respect to described physical resource; And, utilize cellular signal window that described receive window information and described physical resource are corresponding to determine the receive window of D2D discovery signals; Or,
Described the 2nd UE determines that the receive window of D2D discovery signals is the cellular signal window that described physical resource is corresponding, and, cellular signal window corresponding to part physical resource adjacent with described physical resource; Or,
Described the 2nd UE determines that the receive window of D2D discovery signals is according to cellular signal window corresponding to described physical resource and the definite a plurality of signal receive windows of predefined window offset value.
7. method as claimed in claim 6, is characterized in that, described the 2nd UE receives D2D discovery signals on the receive window of described D2D discovery signals, comprising:
When the receive window of D2D discovery signals is a plurality of signal receive window of determining according to cellular signal window corresponding to described physical resource and predefined window offset value, described the 2nd UE carries out the reception of D2D discovery signals respectively in described a plurality of signal receive windows, to determine the actual arrival window of D2D discovery signals.
8. the method as described in claim 5-7 any one, is characterized in that, after described the 2nd UE receives D2D discovery signals on the receive window of described D2D discovery signals, described method also comprises:
Described the 2nd UE determines the receive window that next time receives described D2D discovery signals according to the actual arrival window of described D2D discovery signals.
9. a base station equipment, is characterized in that, comprising:
Determination module, for the physical resource of determining that device-to-device D2D discovery signals takies, and utilize described physical resource to determine the send window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the send window that described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Sending module, for described physical resource and send window information are sent to first user equipment UE, utilizes described physical resource and send window information to send D2D discovery signals by a described UE.
10. base station equipment as claimed in claim 9, is characterized in that,
Described determination module, also for determining according to send window information corresponding to described D2D discovery signals the receive window information that D2D discovery signals is corresponding, the skew of the cellular signal window that the receive window that described receive window information is D2D discovery signals is corresponding with respect to described physical resource;
Described sending module, also for described physical resource and receive window information are sent to the 2nd UE, utilizes described physical resource and receive window information to receive D2D discovery signals by described the 2nd UE.
11. base station equipments as claimed in claim 9, is characterized in that,
Described determination module, specifically for the D2D discovery signals transmitting-receiving situation on the physical resource that takies according to D2D discovery signals and adjacent other physical resource of described physical resource, determines the send window information that D2D discovery signals is corresponding.
12. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
Receiver module, the physical resource and send window information corresponding to D2D discovery signals that for the D2D discovery signals receiving from base station equipment, take; The skew of the cellular signal window that send window that wherein, described send window information is D2D discovery signals is corresponding with respect to described physical resource;
Determination module, for utilizing cellular signal window that described send window information and described physical resource are corresponding to determine the send window of D2D discovery signals;
Sending module, for sending D2D discovery signals in the send window at described D2D discovery signals.
13. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
The first receiver module, the physical resource taking for the D2D discovery signals receiving from base station equipment;
Determination module, for utilizing cellular signal window that described physical resource is corresponding to determine the receive window of D2D discovery signals; Wherein, there is skew in the cellular signal window that the receive window of described D2D discovery signals is corresponding with respect to described physical resource, or the receive window of described D2D discovery signals has comprised a plurality of signal receive windows with the cellular signal window that described physical resource is corresponding;
The second receiver module, for receiving D2D discovery signals on the receive window at described D2D discovery signals.
14. subscriber equipmenies as claimed in claim 13, is characterized in that,
Described determination module, receive window information corresponding to D2D discovery signals sending specifically for receiving described base station equipment, the skew of the cellular signal window that the receive window that described receive window information is D2D discovery signals is corresponding with respect to described physical resource; And, utilize cellular signal window that described receive window information and described physical resource are corresponding to determine the receive window of D2D discovery signals; Or the receive window of determining D2D discovery signals is the cellular signal window that described physical resource is corresponding, and, cellular signal window corresponding to part physical resource adjacent with described physical resource; Or the receive window of determining D2D discovery signals is according to cellular signal window corresponding to described physical resource and the definite a plurality of signal receive windows of predefined window offset value.
15. subscriber equipmenies as claimed in claim 14, is characterized in that,
Described the second receiver module, while being specifically for the receive window when D2D discovery signals a plurality of signal receive window of determining according to cellular signal window corresponding to described physical resource and predefined window offset value, in described a plurality of signal receive windows, carry out the reception of D2D discovery signals respectively, to determine the actual arrival window of D2D discovery signals.
16. subscriber equipmenies as described in claim 13-15 any one, is characterized in that,
Described determination module, also for receiving on the receive window at D2D discovery signals after D2D discovery signals, determines the receive window that next time receives D2D discovery signals according to the actual arrival window of D2D discovery signals.
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| CN201310081826.0A CN104053212B (en) | 2013-03-14 | 2013-03-14 | A kind of D2D has found the transmission method and equipment of signal |
| PCT/CN2014/072130 WO2014139351A1 (en) | 2013-03-14 | 2014-02-17 | Transmission method and device for d2d discovery signal |
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| CN201310081826.0A CN104053212B (en) | 2013-03-14 | 2013-03-14 | A kind of D2D has found the transmission method and equipment of signal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105704825A (en) * | 2016-01-19 | 2016-06-22 | 重庆邮电大学 | Dynamic discovery resource allocation system and method based on adaptive random access in D2D network |
| CN105992331A (en) * | 2015-01-29 | 2016-10-05 | 中兴通讯股份有限公司 | Communication processing method and device and user equipment |
| WO2016161622A1 (en) * | 2015-04-10 | 2016-10-13 | 富士通株式会社 | Discovery information transmission method, device and communication system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10382570B2 (en) * | 2014-09-26 | 2019-08-13 | Kyocera Corporation | Base station and user terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414896A (en) * | 2007-10-18 | 2009-04-22 | 华为技术有限公司 | Method, system and apparatus for movably receiving window |
| CN101610098A (en) * | 2008-06-19 | 2009-12-23 | 中兴通讯股份有限公司 | System message method of reseptance and device, system message dispensing device |
| CN101615928A (en) * | 2008-06-25 | 2009-12-30 | 三星电子株式会社 | The method and apparatus of transmitting SRS signaling in the LTE system |
-
2013
- 2013-03-14 CN CN201310081826.0A patent/CN104053212B/en active Active
-
2014
- 2014-02-17 WO PCT/CN2014/072130 patent/WO2014139351A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101414896A (en) * | 2007-10-18 | 2009-04-22 | 华为技术有限公司 | Method, system and apparatus for movably receiving window |
| CN101610098A (en) * | 2008-06-19 | 2009-12-23 | 中兴通讯股份有限公司 | System message method of reseptance and device, system message dispensing device |
| CN101615928A (en) * | 2008-06-25 | 2009-12-30 | 三星电子株式会社 | The method and apparatus of transmitting SRS signaling in the LTE system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992331A (en) * | 2015-01-29 | 2016-10-05 | 中兴通讯股份有限公司 | Communication processing method and device and user equipment |
| WO2016161622A1 (en) * | 2015-04-10 | 2016-10-13 | 富士通株式会社 | Discovery information transmission method, device and communication system |
| CN105704825A (en) * | 2016-01-19 | 2016-06-22 | 重庆邮电大学 | Dynamic discovery resource allocation system and method based on adaptive random access in D2D network |
| CN105704825B (en) * | 2016-01-19 | 2019-05-31 | 重庆邮电大学 | Dynamic Discovery resource allocation system and method based on self-adapting random access in D2D |
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|---|---|
| WO2014139351A1 (en) | 2014-09-18 |
| CN104053212B (en) | 2018-02-23 |
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