WO2015106683A1 - 一种设备到设备信号传输方法及设备 - Google Patents
一种设备到设备信号传输方法及设备 Download PDFInfo
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- WO2015106683A1 WO2015106683A1 PCT/CN2015/070678 CN2015070678W WO2015106683A1 WO 2015106683 A1 WO2015106683 A1 WO 2015106683A1 CN 2015070678 W CN2015070678 W CN 2015070678W WO 2015106683 A1 WO2015106683 A1 WO 2015106683A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/0012—Hopping in multicarrier systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/02—Selection of wireless resources by user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
Definitions
- the present application relates to the field of communications technologies, and in particular, to a device-to-device (D2D) signal transmission method and device.
- D2D device-to-device
- a user equipment (User Equipment, UE) can only work in a half-duplex manner, and cannot detect D2D signals of other UEs in a subframe in which the D2D signal is transmitted by itself. Therefore, if the D2D signals of two UEs are transmitted in the same subframe, they cannot be found in each other within the subframe. Further, if they are still transmitting on the same frequency domain resource, mutual interference will occur due to resource conflicts. If they are transmitted on different frequency domain resources, the probability of other UEs successfully detecting their D2D signals due to in-band leakage interference is also reduced. In either case, the overall D2D transmission performance of the system will decrease.
- UE User Equipment
- the D2D communication technology that is, the UE direct-through technology, refers to a method in which a neighboring UE can perform data transmission through a direct link in a short range, and does not need to be forwarded through a central node (ie, a base station), as shown in FIG.
- D2D technology's short-range communication characteristics and direct communication methods have the following advantages:
- the UE short-range direct communication mode can achieve higher data rate, lower delay and lower power consumption
- the direct communication method of D2D can adapt to the local data sharing requirements of services such as wireless point-to-point (P2P), and provide flexible data adapting services;
- P2P wireless point-to-point
- D2D direct communication can utilize a large number of widely distributed UEs in the network to extend the coverage of the network.
- the LTE D2D technology refers to a D2D discovery and communication process controlled by an LTE network operating on an LTE licensed frequency band.
- the advantages of D2D technology can be fully utilized, and the control of LTE network can also overcome some problems of traditional D2D technology, such as uncontrollable interference.
- the introduction of LTE D2D features will enable LTE technology to evolve from pure wireless mobile cellular communication technology to "Universal Connectivity Technology".
- the D2D technology includes D2D discovery and D2D communication.
- the D2D discovery is taken as an example to describe the D2D transmission physical resource allocation mode.
- the UE In the D2D discovery process, the UE needs to know the receiving resource area (the receiving resource area is used for receiving the UE to discover other users), and also needs to know the sending resource area (the sending resource area is used for sending the UE's own discovery signal). Due to hardware limitations, the UE cannot simultaneously transmit and receive discovery signals within one subframe.
- the system discovery resource includes a subframe set or a physical resource block (PRB) set and a period in which the subframe set or the PRB set appears, and the period is a period in which the system discovers resources, as shown in FIG. 2 . Show.
- a system discovery resource period may include several subframes, and each subframe includes a plurality of PRBs.
- the subframes or PRBs are consecutive uplink or downlink resources (for example, consecutive uplink subframes).
- the UE may perform detection of discovery signals of other UEs in a subframe that does not transmit a discovery signal.
- the system discovery resource is generally configured by the base station when there is network coverage, and can be configured or pre-defined by the cluster head when there is no network coverage.
- the discovery signals that allow the UE to transmit its own in which system discovery resources (ie, subframes) can also be configured by the network or cluster head, or determined according to pre-agreed rules.
- the UE specifically transmits the discovery signal on which discovery resource in the system discovery resource, and may be selected by the UE from the allowed resources (referred to as type 1 discovery), or may be configured by the base station (referred to as type 2 discovery).
- one UE can only work in a half-duplex manner, and cannot detect the discovery signals of other UEs in the subframe in which the discovery signal is transmitted by itself. Therefore, if the discovery signals of two UEs are transmitted in the same subframe, they cannot be found each other during the period. Further, if they are still transmitting on the same frequency domain resource, mutual interference may occur due to resource conflicts; if they are transmitted on different frequency domain resources, other UEs may successfully discover them due to in-band leakage interference. The probability drops. Generally, for UEs transmitting signals in the same subframe, the smaller the frequency domain resource distance is, the more serious the corresponding in-band leakage is.
- the prior art proposes a resource hopping pattern between discovery resources used by the UE in different discovery resource periods, so that the discovery resources used by the UE have a fixed resource hopping relationship in different discovery resource periods. Therefore, the D2D UEs that are transmitted in different frequency domain resources in the same subframe can use the discovery resources of different subframes to discover each other. For example, the UE uses the following resource hopping pattern:
- SF(i) [floor(PRB(0)/nSF)*i*i+mod(PRB(0), nSF)*i+SF(0)]mod nSF
- PRB(i) [PRB(0)+3*i]mod nRB
- the SF(i) represents the subframe index of the discovery resource of the UE in the discovery resource period with the index i; the PRB(i) represents the PRB index of the discovery resource of the UE in the discovery resource period with the index i, and the nSF represents a The total number of discovered subframes in the resource period is found, and nRB represents the total number of PRB resources in a discovery resource period.
- the existing resource hopping scheme can enable the UEs occupying different frequency domain resources in the same subframe to subsequently discover each other, but for different UEs occupying the same frequency domain resource in the same subframe, the subsequent collisions will continue. Can not discover each other, thus reducing the overall discovery probability of the system.
- the receiving end cannot be based on a certain The physical resource of the D2D signal is detected at a moment, and the physical resource used by the UE to transmit the D2D signal next time is known, and the blind detection can be performed again at the next time, thereby increasing the complexity of the subsequent detection of the D2D signal by the UE.
- An embodiment of the present application provides a device-to-device signal transmission method and device, which are used to determine, according to their own D2D parameters, a resource hopping pattern between different D2D transmission physical resources, thereby obtaining multiple D2D transmission physical resources.
- the D2D UE that transmits the D2D signal in the same subframe at any time can subsequently transmit the D2D signal in different subframes, thereby improving the overall D2D transmission performance of the system.
- a D2D signal sending method provided by an embodiment of the present application includes:
- the first UE transmits the D2D signal on the determined plurality of D2D transmission physical resources.
- the UE determines the resource hopping pattern between different D2D transmission physical resources according to the D2D parameter of the UE, thereby obtaining multiple D2D transmission physical resources, so that the D2D UE transmitting the D2D signal in the same subframe at any time is obtained.
- the subsequent D2D signals can be transmitted in different sub-frames, thereby improving the overall D2D transmission performance of the system.
- the receiving end can detect the D2D transmission physical resource of the D2D signal according to any time, and know the D2D transmission physical resource used by the UE that sends the D2D signal to transmit the D2D signal next time, so that only the corresponding D2D transmission physical resource needs to be subsequently transmitted.
- the detection of the D2D signal can be performed, and the detection complexity of the UE can be effectively reduced.
- the D2D parameter includes any one of the following parameters:
- the D2D device ID of the first UE The D2D device ID of the first UE
- the IP address of the target UE of the first UE is the IP address of the target UE of the first UE
- the D2D frequency hopping configuration parameter of the first UE is the D2D frequency hopping configuration parameter of the first UE.
- the D2D parameter is pre-configured on the network side.
- the first UE determines, according to the preset D2D parameter, a resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt, including:
- the first UE determines, according to the resource hopping pattern, the multiple D2D transmission physical resources, including:
- the initial D2D transmission physical resource by means of randomly selecting a resource, or by using resource configuration information indicated by the network side or other UEs;
- the first UE determines other D2D transmission physical resources according to the resource hopping pattern and the initial D2D transmission physical resource.
- the D2D parameter is included in the D2D signal.
- the D2D transmission physical resource is specifically one of the following:
- a physical resource used to transmit D2D communication signals is a physical resource used to transmit D2D communication signals.
- the D2D signal is specifically one of the following:
- a D2D signal receiving method provided by an embodiment of the present application includes:
- the second UE detects the D2D signal of the first UE on the D2D transmission physical resource used by the first UE to transmit the D2D signal.
- the UE determines the resource hopping pattern between different D2D transmission physical resources of the peer UE according to the D2D parameter of the peer UE that performs the D2D communication, thereby obtaining multiple D2D transmission physical resources of the peer UE. Then, the D2D signal of the peer UE is received, so that the D2D UE that transmits the D2D signal in the same subframe at any time, and then the D2D signal can be transmitted in different subframes, thereby improving the overall D2D transmission performance of the system.
- the receiving end UE can detect the D2D transmission physical resource of the D2D signal at any time, and learn the D2D transmission physical resource used by the UE that transmits the D2D signal to transmit the D2D signal next time, so that only the corresponding D2D transmission physical resource needs to be subsequently transmitted.
- the detection of the D2D signal can be performed, and the detection complexity of the UE can be effectively reduced.
- the second UE determines a first D2D transmission physical resource for transmitting a D2D signal of the first UE, including:
- the second UE detects the D2D signal of the first UE, and determines the D2D transmission physical resource of the D2D signal of the first UE to be the first D2D transmission physical resource for transmitting the D2D signal of the first UE; or
- the second UE determines, by the network side or other UEs, a first D2D transmission physical resource for transmitting the D2D signal of the first UE.
- the determining, by the second UE, the D2D parameter of the first UE includes:
- the second UE determines, by the network side or other UEs, the D2D parameter of the first UE.
- the second UE determines, according to the D2D parameter of the first UE, a resource hopping pattern between multiple D2D transmission physical resources of the first UE, including:
- a first resource hopping pattern determining unit configured to determine, according to a preset D2D parameter, a resource hopping pattern between multiple D2D transmission physical resources that the device needs to adopt;
- a first D2D transmission physical resource determining unit configured to determine the multiple D2D transmission physical resources according to the resource hopping pattern
- a D2D signal sending unit configured to send the D2D signal on the determined plurality of D2D transmission physical resources.
- the UE determines the resource hopping pattern between different D2D transmission physical resources according to the D2D parameter of the UE, thereby obtaining multiple D2D transmission physical resources, so that the D2D UE transmitting the D2D signal in the same subframe at any time is obtained.
- the subsequent D2D signals can be transmitted in different sub-frames, thereby improving the overall D2D transmission performance of the system.
- the receiving end can detect the D2D transmission physical resource of the D2D signal according to any time, and know the D2D transmission physical resource used by the UE that sends the D2D signal to transmit the D2D signal next time, so that only the corresponding D2D transmission physical resource needs to be subsequently transmitted.
- the detection of the D2D signal can be performed, and the detection complexity of the UE can be effectively reduced.
- the D2D parameter includes any one of the following parameters:
- the D2D device ID of the first UE The D2D device ID of the first UE
- the IP address of the target UE of the first UE is the IP address of the target UE of the first UE
- the D2D frequency hopping configuration parameter of the first UE is the D2D frequency hopping configuration parameter of the first UE.
- the D2D parameter is pre-configured on the network side.
- the first resource hopping pattern determining unit is specifically configured to:
- the first D2D transmission physical resource determining unit is specifically configured to:
- Determining initial D2D transmission physical resources by randomly selecting resources, or by resource configuration information indicated by the network side or other UEs;
- the D2D parameter is included in the D2D signal.
- the D2D transmission physical resource is specifically one of the following:
- a physical resource used to transmit D2D communication signals is a physical resource used to transmit D2D communication signals.
- the D2D signal is specifically one of the following:
- Another user equipment provided by the embodiment of the present application includes: a processor and a memory, where the processor is configured with a computer program for performing the method performed by the transmitting side UE in the embodiment of the present application; the memory is used to store the computer.
- the program may be used to configure the processor; the processor may include a baseband processing component, a radio frequency processing component, and the like according to actual needs, for transmitting related information. specifically:
- the processor is configured to: determine, according to the preset device-to-device D2D parameter, a resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt; determine, according to the resource hopping pattern, the multiple D2D transmission physics a resource; transmitting a D2D signal on the determined plurality of D2D transmission physical resources.
- the processor determines, according to the preset D2D parameter, a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt; or determines, according to the preset D2D parameter, the device needs to adopt Decoding a time domain resource hopping pattern between the plurality of D2D transmission physical resources; or determining a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt according to the preset D2D parameter, and then, according to The frequency domain resource hopping pattern determines a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt; or, according to the preset D2D parameter, determines multiple D2D transmission physical resources that the device needs to adopt.
- a time domain resource hopping pattern is obtained, and then a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt is determined according to the time domain resource hopping pattern.
- the processor determines the initial D2D transmission physical resource by means of randomly selecting a resource, or by performing interference measurement on the candidate resource, or by using resource configuration information indicated by the network side or other UE;
- the hopping pattern and the initial D2D transmission physical resources determine other D2D transmission physical resources.
- a first D2D transmission physical resource determining unit configured to determine, for transmitting, a D2D communication with the device a first D2D transmission physical resource of a UE's D2D signal
- a D2D parameter determining unit configured to determine a D2D parameter of the first UE
- a second resource hopping pattern determining unit configured to determine, according to the D2D parameter of the first UE, a resource hopping pattern between multiple D2D transmission physical resources of the first UE;
- a second D2D transmission physical resource determining unit configured to determine, according to the first D2D transmission physical resource and the determined resource hopping pattern, a D2D transmission physical resource used by the first UE to transmit a D2D signal;
- the D2D signal detecting unit is configured to detect the D2D signal of the first UE on the D2D transmission physical resource used by the first UE to transmit the D2D signal.
- the device is configured to determine a resource hopping pattern between different D2D transmission physical resources of the peer UE according to the D2D parameter of the peer UE that performs the D2D communication, so as to obtain multiple D2D transmission physical resources of the peer UE. Then, the D2D signal of the peer UE is received, so that the D2D UE that transmits the D2D signal in the same subframe at any time, and then the D2D signal can be transmitted in different subframes, thereby improving the overall D2D transmission performance of the system.
- the receiving end UE can detect the D2D transmission physical resource of the D2D signal at any time, and learn the D2D transmission physical resource used by the UE that transmits the D2D signal to transmit the D2D signal next time, so that only the corresponding D2D transmission physical resource needs to be subsequently transmitted.
- the detection of the D2D signal can be performed, and the detection complexity of the UE can be effectively reduced.
- the first D2D transmission physical resource determining unit is specifically configured to:
- the D2D parameter determining unit is specifically configured to:
- the D2D parameter of the first UE is determined by the network side or other UE indication.
- the second resource hopping pattern determining unit is specifically configured to:
- the device further includes:
- a first resource hopping pattern determining unit configured to determine, according to a preset device-to-device D2D parameter, a resource hopping pattern between multiple D2D transmission physical resources that the device needs to adopt;
- a first D2D transmission physical resource determining unit configured to determine the multiple D2D transmission physical resources according to the resource hopping pattern determined by the first resource hopping pattern determining unit;
- a D2D signal sending unit configured to send the D2D signal on the plurality of D2D transmission physical resources determined by the first D2D transmission physical resource determining unit.
- Another user equipment provided by the embodiment of the present application includes: a processor and a memory, where the processor is configured with a computer program for performing the method performed by the receiving side UE in the embodiment of the present application; the memory is used to store the computer.
- the program may be used to configure the processor; the processor may include a baseband processing component, a radio frequency processing component, and the like according to actual needs, for transmitting related information. specifically:
- the processor is configured to: determine a first D2D transmission physical resource for transmitting a D2D signal of the first UE that performs D2D communication with the device; determine a D2D parameter of the first UE; and determine the D2D parameter according to the first UE Determining a resource hopping pattern between the plurality of D2D transmission physical resources of the first UE; determining, according to the first D2D transmission physical resource and the determined resource hopping pattern, the D2D transmission physical resource used by the first UE to transmit the D2D signal And detecting a D2D signal of the first UE on the D2D transmission physical resource used by the first UE to transmit the D2D signal.
- the processor detects the D2D signal of the first UE, and determines the D2D transmission physical resource of the D2D signal of the first UE to be the first D2D transmission physical resource for transmitting the D2D signal of the first UE; or, determining The D2D parameter of the first UE is a pre-agreed parameter; or the first D2D transmission physical resource for transmitting the D2D signal of the first UE is determined by the network side or other UE indication.
- the processor obtains the D2D parameter of the first UE from the D2D signal detected on the first D2D transmission physical resource; or determines the D2D parameter of the first UE by using the network side or other UE indication .
- the processor determines, according to the D2D parameter of the first UE, a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt; or, according to the D2D parameter of the first UE Determining a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt; or determining, according to the D2D parameter of the first UE, multiple D2D transmission physical resources that the first UE needs to adopt a frequency domain resource hopping pattern between the two, and then determining, according to the frequency domain resource hopping pattern, a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt; or, according to the first Determining a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt, and then determining, according to the time domain resource hopping pattern, the multiple D2Ds that the first UE needs to adopt A frequency domain resource hopping pattern
- the processor further has a function of a transmitting side processor, that is, also used for:
- FIG. 1 is a schematic diagram of a data flow of a terminal direct connection communication in the prior art
- FIG. 2 is a schematic diagram of a discovery resource of a UE in the prior art
- FIG. 3 is a schematic flowchart diagram of a D2D signal transmission method according to an embodiment of the present disclosure
- FIG. 4 is a schematic flowchart of a method for transmitting a D2D signal according to an embodiment of the present application
- FIG. 5 is a schematic flowchart of a method for receiving a D2D signal according to an embodiment of the present disclosure
- FIG. 6 is a schematic structural diagram of a UE on a sending side according to an embodiment of the present disclosure
- FIG. 7 is a schematic structural diagram of another UE on a sending side according to an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram of a UE on a receiving side according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram of another UE on the receiving side according to an embodiment of the present disclosure.
- the embodiment of the present invention provides a device-to-device signal transmission method and device, which implements a resource hopping pattern between different D2D transmission physical resources according to the D2D parameter of the UE, thereby obtaining multiple D2D transmission physical resources, thereby
- the D2D UE transmitting the D2D signal in the same subframe at any time may subsequently transmit the D2D signal in different subframes, thereby improving the overall D2D transmission performance of the system.
- a D2D signal transmission method provided by an embodiment of the present application, referring to FIG. 3, the specific steps include:
- the first UE determines, according to its own D2D parameter, a resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt, where the frequency hopping pattern of the frequency domain and/or the time domain is included.
- the D2D parameter includes any one of the following parameters:
- the D2D device ID of the first UE The D2D device ID of the first UE
- the IP address of the target UE of the first UE is the IP address of the target UE of the first UE
- GPS Global Positioning System
- the D2D frequency hopping configuration parameter of the first UE is the D2D frequency hopping configuration parameter of the first UE.
- the D2D parameter used by the first UE may be pre-configured on the network side.
- the D2D frequency hopping configuration parameter is a parameter specifically used for obtaining a hopping pattern used for D2D signal transmission, and is one or more configuration parameters in the corresponding hopping frequency formula, and the value range is pre-agreed, and the value is determined by
- the network side is configured or pre-configured in the UE.
- P in the frequency hopping formula is a D2D parameter, which may be a dedicated D2D frequency hopping configuration parameter.
- the value of P ranges from ⁇ 0, 1, ..., 10 ⁇ , and the specific value is configured by the network side, regardless of other D2D parameters of the UE.
- the D2D parameter used by the first UE is agreed with the second UE in advance, or is subsequently indicated by the network side or other UE to the second UE.
- the D2D parameter may be a source ID of a first UE, a ProSe ID (ProSeimity Service ID), a ProSe Application ID, or a ProSe App User ID. It may also be a target ID (Target ID), a ProSe ID (Proximity Service ID), a ProSe Application ID or a ProSe App User ID of the target UE (ie, the second UE) of the first UE.
- the D2D parameter may also be a frequency hopping index that is configured by the network side to the first UE by using high layer signaling, where the frequency hopping index is used to determine an index of the hopping pattern in the candidate hopping pattern, and other parameters. Together, the hopping pattern of the UE is determined.
- the first UE performing D2D communication is consistent with the D2D parameter of the first UE selected by the second UE.
- Manner 1 The method for determining, by the first UE, the resource hopping pattern according to the D2D parameter includes: determining, by the first UE, a frequency domain resource hopping pattern according to the D2D parameter.
- the frequency of the D2D transmission physical resource occupied by the index in the frequency domain resource hopping pattern is i.
- the domain resource index can be expressed as:
- PRB(i) P mod nRB
- PRB(i) [PRB(i-1)+P]mod nRB;
- PRB(i) [PRB(0)+i*P]mod nRB;
- PRB(i) [PRB(i-1)+f(P)] mod nRB;
- PRB(i) [PRB(i-1) + f(P, i)] mod nRB.
- f(P) is a function or sequence with P as a parameter.
- a pseudo-random sequence C is obtained by using a function of P as an initial value, and a frequency hopping pattern f(P) is obtained by C;
- f(P, i) is P and i are functions or sequences of parameters.
- a pseudo-random sequence C(i) is obtained by using a function of P as an initial value, and a frequency hopping pattern f(P, i) is obtained by C(i), and i is an arbitrary natural number.
- Manner 2 The method for determining, by the first UE, the resource hopping pattern according to the D2D parameter comprises: determining, by the first UE, a time domain resource hopping pattern according to the D2D parameter.
- the domain resource index can be expressed as:
- SF(i) [SF(0)+i*PRB(0)+i*(i-1)*P/2]mod nSF;
- SF(i) [SF(i-1)+f(P)] mod nSF;
- SF(i) [SF(i-1)+f(P,i)] mod nSF.
- the method for determining a resource hopping pattern according to the D2D parameter by the first UE includes: determining, by the first UE, a frequency domain resource hopping pattern according to the D2D parameter, and determining a time domain resource hop according to the determined frequency domain resource hopping pattern Frequency pattern.
- the index in the frequency domain resource hopping pattern is The frequency domain resource index occupied by the D2D transmission physical resource of i may be:
- PRB(i) P mod nRB
- PRB(i) [PRB(i-1)+P]mod nRB; or,
- PRB(i) [PRB(0)+i*P]mod nRB; or,
- PRB(i) [PRB(i-1)+f(P)] mod nRB;
- PRB(i) [PRB(i-1) + f(P, i)] mod nRB.
- the time domain resource index occupied by the D2D transmission physical resource whose index is i is:
- SF(i) [SF(i-1)+PRB(i-1)] mod nSF; or,
- SF(i) [SF(0)+i*PRB(0)+i*(i-1)*P/2] mod nSF.
- the method for determining a resource hopping pattern by the first UE according to the D2D parameter includes: determining, by the first UE, time domain resource hopping between the plurality of D2D transmission physical resources that the first UE needs to adopt according to the preset D2D parameter And then determining, according to the time domain resource hopping pattern, a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt.
- the D2D transmission physical resource described in this embodiment may be a D2D discovery resource for transmitting a D2D discovery signal, or a D2D communication resource for transmitting a D2D communication signal or a D2D synchronization resource for transmitting a D2D synchronization signal. .
- the first UE determines, according to the resource hopping pattern, a plurality of D2D transmission physical resources used. Specific methods include:
- Manner 1 The first UE determines the initial D2D transmission physical resource by randomly selecting resources; and then obtains other D2D transmission physical resources according to the resource hopping pattern and the initial D2D transmission physical resource.
- the first UE randomly selects one frequency domain resource from the nRB frequency domain resources as the PRB (0), randomly selects one time domain resource from the nSF time domain resources as the SF (0), and then according to the resource hopping pattern.
- the frequency domain resource index PRB(i) and the time domain resource index SF(i) of the D2D transmission physical resource indexed as i are obtained.
- the first UE determines the initial D2D transmission physical resource by using the resource configuration information indicated by the network side or other UEs, and obtains other D2D transmission physical resources according to the resource hopping pattern and the initial D2D transmission physical resource.
- the first UE obtains PRB(0) and SF(0) from resource configuration information indicated by the network side or other UEs, and obtains a frequency domain resource index of the D2D transmission physical resource indexed as i according to the resource hopping pattern.
- the first UE determines an initial D2D transmission physical resource by performing interference measurement on the candidate resource; the first UE determines another D2D transmission physics according to the resource hopping pattern and the initial D2D transmission physical resource. Resources.
- the first UE performs interference measurement on all candidate D2D transmission physical resources, and selects a D2D transmission physical resource with less interference as the initial D2D transmission physical resource.
- the first UE sends a D2D signal on the determined D2D transmission physical resource.
- the D2D signal carries a D2D parameter used by the first UE to determine a resource hopping pattern
- the D2D signal may be a D2D discovery signal, or may be a D2D communication signal or a D2D synchronization signal.
- the D2D transmission physical resource described in this embodiment of the present application may be that the UE actually transmits the D2D letter.
- the physical resource of the number may also be a physical resource that the UE can use to transmit the D2D signal (but the UE does not necessarily transmit the D2D signal on the resource).
- the UE transmitting the D2D signal on the determined multiple D2D transmission physical resources does not mean that the UE sends the D2D signal on all the determined D2D transmission physical resources, and the UE may also only partially determine the D2D transmission physical resources. Send a D2D signal.
- the second UE determines a first D2D transmission physical resource used to transmit the D2D signal of the first UE.
- the method for the second UE to determine the first D2D transmission physical resource includes:
- the first D2D transmission physical resource is indicated by the network side or other UE to the second UE; or the first D2D transmission physical resource is determined by the second UE's own blind detection D2D signal, that is, the second UE will detect the D2D
- the physical resource of the signal is determined to be the first D2D transmission physical resource.
- the D2D signal of the first UE that is detected by the second UE on the first D2D transmission physical resource carries the D2D parameter used by the first UE to determine the resource hopping pattern.
- the second UE determines a D2D parameter of the first UE.
- the D2D parameter of the first UE that sends the D2D signal may be a parameter that is pre-agreed with the first UE, or obtained by using the information carried in the D2D signal, or indicated to the second UE by the network side or other UE.
- the parameter agreed with the first UE may be the D2D ID of the second UE, the D2D device ID, the D2D application ID, the D2D application user ID, or the IP address of the second UE, for example, the Source ID of the second UE, ProSe ID. (Proximity Service ID), ProSe Application ID or ProSe App User ID.
- the second UE determines, according to the D2D parameter of the first UE, a resource hopping pattern between multiple D2D transmission physical resources of the first UE.
- the formula (also referred to as a rule) for determining the resource hopping pattern of the opposite end used by the first UE and the second UE that performs D2D communication is consistent.
- the second UE determines, according to the first D2D transmission physical resource and the determined resource hopping pattern, a D2D transmission physical resource used by the first UE to transmit a D2D signal.
- the second UE detects the D2D signal of the first UE on the D2D transmission physical resource used by the first UE to transmit the D2D signal.
- a method for transmitting a D2D signal includes the following steps:
- the first UE determines, according to the preset D2D parameter, a resource hopping pattern between multiple D2D transmission physical resources that the first UE needs to adopt;
- the first UE determines, according to the resource hopping pattern, the multiple D2D transmission physical resources.
- the first UE sends a D2D signal on the determined multiple D2D transmission physical resources.
- a method for receiving a D2D signal includes the following steps:
- the second UE determines a first D2D transmission physical resource for transmitting a D2D signal of the first UE.
- the second UE determines a D2D parameter of the first UE.
- the second UE determines, according to the D2D parameter of the first UE, a resource hopping pattern between multiple D2D transmission physical resources of the first UE.
- the second UE determines, according to the first D2D transmission physical resource and the determined resource hopping pattern, a D2D transmission physical resource used by the first UE to transmit a D2D signal.
- the second UE detects the D2D signal of the first UE on the D2D transmission physical resource used by the first UE to transmit the D2D signal.
- a resource hopping pattern for the discovery resource used to send the discovery signal is assumed that the number of frequency domain resources available in the period of each system discovery resource is nRB, and the number of available time domain resources is nSF, and the resource index occupied by UE1 in the period of the system discovery resource with index i is:
- Frequency domain resource index PRB(i) [PRB(0)+i*P1]mod nRB;
- Time domain resource index SF(i) [SF(0)+i*PRB(0)+i*(i-1)*P2/2]mod nSF;
- the resource index occupied by UE2 is:
- Frequency domain resource index PRB(i) [PRB(0)+i*P2]mod nRB;
- Time domain resource index SF(i) [SF(0)+i*PRB(0)+i*(i-1)*P2/2]mod nSF;
- the UE1 and the UE2 respectively send a discovery signal on the discovery resource determined in the period of each system discovery resource, and detect the discovery signals of other UEs in other subframes except the subframe in which the discovery signal is transmitted in the period of the system discovery resource.
- the first UE and the second UE transmit discovery signals in the same subframe, and thus cannot discover each other; but in the discovery resource period of the first or second UE, they are in different children. Frame transmissions can be found on each other.
- the second UE is the discovery UE
- the first UE is the target UE of the second UE
- the second UE discovers the first UE by detecting the discovery signal of the first UE.
- the first UE determines a resource hopping pattern of the discovery resource used for transmitting the discovery signal in a period of different system discovery resources according to its own D2D application ID (assuming the ID value is P). Specifically, assuming that the number of frequency domain resources available in the period of each system discovery resource is nRB, and the number of available time domain resources is nSF, the resource index of the first UE occupied by the system discovery resource with index i is:
- Frequency domain resource index PRB(i) [PRB(i-1)+f(P,i)] mod nRB;
- Time domain resource index SF(i) [SF(i-1)+PRB(i-1)] mod nSF;
- the first UE determines multiple discovery resources used by itself according to the resource hopping pattern. Specifically, the first UE receives the discovery resource configuration information of the network side, determines an initial discovery resource configuration, and obtains a frequency domain resource index PRB(i) and a time domain resource of the discovery resource indexed as i according to the resource hopping pattern. Index SF(i). For example, the first UE obtains PRB(0) and SF(0) from the D2D transmission physical resource configuration information indicated by the network side, and then obtains a discovery signal in the system discovery resource period indexed by i according to the resource hopping pattern. The frequency domain resource index PRB(i) and the time domain resource index SF(i) of the discovery resource. Since the values of P of different UEs are different, different pseudo-random sequences c(i) can be obtained, so that the effect of randomization of frequency domain resources can be achieved.
- the first UE sends a discovery signal on the discovery resource determined in each system discovery resource period, and the discovery signal carries the D2D application ID (P) used by the first UE to determine the resource hopping pattern;
- P D2D application ID
- the second UE detects the discovery signal of the first UE on each discovery resource in the system discovery resource period, and detects the discovery signal of the first UE on a certain discovery resource (PRB(k), SF(k)); Obtaining, from the detected discovery signal, a D2D application ID (P) used by the first UE to determine a resource hopping pattern;
- PRB(k), SF(k) certain discovery resource
- P D2D application ID
- Frequency domain resource index PRB(i) [PRB(i-1)+P] mod nRB;
- Time domain resource index SF(i) [SF(i-1)+PRB(i-1)] mod nSF;
- the second UE determines, according to the discovery resource (PRB(k), SF(k)) of the first UE discovery signal, and the determined resource hopping pattern, that the first UE sends a discovery signal in a subsequent each system discovery resource period.
- the second UE detects the discovery signal of the first UE on the discovery resource determined in the subsequent each system discovery resource period.
- the first UE is a transmitting UE in D2D communication and the second UE is a receiving UE in D2D communication.
- the first UE determines a resource hopping pattern between the plurality of D2D communication resources used for transmitting the D2D communication signal according to its own D2D broadcast ID (assuming the ID value is P). Specifically, it is assumed that the number of available frequency domain resources for each D2D communication signal transmission is nRB, and the number of available time domain resources is nSF, and the resource index occupied by the communication signal transmission indexed as i is:
- Frequency domain resource index PRB(i) [PRB(i-1)+P] mod nRB;
- Time domain resource index SF(i) [SF(i-1)+PRB(i-1)] mod nSF;
- the first UE determines, according to the resource hopping pattern, a plurality of D2D communication resources used by the D2D communication signal. Specifically, the first UE randomly selects one frequency domain resource from the nRB frequency domain resources as the PRB (0), randomly selects one time domain resource from the nSF time domain resources as the SF (0), and then hops according to the foregoing resources.
- the picture shows the frequency domain resource index PRB(i) and the time domain resource index SF(i) of the D2D communication resource occupied by the D2D communication signal transmission indexed as i. The specific use effect is the same as that of the first embodiment.
- the first UE sends a D2D communication signal on the determined multiple D2D communication resources, where the D2D communication signal carries a D2D broadcast ID used by the first UE to determine a resource hopping pattern;
- the second UE detects the D2D communication signal of the first UE on a certain D2D communication resource (PRB(k), SF(k)) by detecting the D2D communication signal of the first UE on each D2D communication resource; and detecting from the second UE Obtaining, in the received signal, a D2D broadcast ID used by the first UE to determine a resource hopping pattern;
- PRB(k), SF(k) D2D communication resource
- the second UE detects the D2D communication signal of the first UE on the determined D2D communication resource.
- a user equipment provided by the embodiment of the present application includes:
- the first resource hopping pattern determining unit 11 is configured to determine, according to the preset device-to-device D2D parameter, a resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt;
- the first D2D transmission physical resource determining unit 12 is configured to determine, according to the resource hopping pattern, the multiple D2D transmission physical resources;
- the D2D signal sending unit 13 is configured to send the D2D signal on the determined plurality of D2D transmission physical resources.
- the D2D parameter includes any one of the following parameters:
- the D2D device ID of the first UE The D2D device ID of the first UE
- the IP address of the target UE of the first UE is the IP address of the target UE of the first UE
- Global positioning system GPS location information of the first UE
- the D2D frequency hopping configuration parameter of the first UE is the D2D frequency hopping configuration parameter of the first UE.
- the D2D parameter is pre-configured on the network side.
- the first resource hopping pattern determining unit 11 is specifically configured to:
- the first D2D transmission physical resource determining unit 12 is specifically configured to:
- Determining an initial D2D transmission physical resource by randomly selecting a resource, or by performing interference measurement on the candidate resource, or by using resource configuration information indicated by the network side or other UEs;
- the D2D parameter is included in the D2D signal.
- the D2D transmission physical resource is specifically one of the following:
- a physical resource used to transmit D2D communication signals is a physical resource used to transmit D2D communication signals.
- the D2D signal is specifically one of the following:
- another user equipment provided by the embodiment of the present application includes: a processor 31 and a memory 32, where the processor 31 is configured to perform the foregoing execution by the transmitting side UE in the embodiment of the present application.
- the computer program of the method is used for storing the computer program, and can be used to configure the processor 31.
- the processor 31 can include a baseband processing component, a radio frequency processing component, and the like according to actual needs, for transmitting related information. specifically:
- the processor 31 is configured to: determine, according to the preset device-to-device D2D parameter, a resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt; determine, according to the resource hopping pattern, the multiple D2Ds Transmitting a physical resource; transmitting the D2D signal on the determined plurality of D2D transmission physical resources.
- the processor 31 determines a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt according to the preset D2D parameter; or determines that the device needs to be adopted according to the preset D2D parameter.
- the time domain resource hopping pattern between the plurality of D2D transmission physical resources or, according to the preset D2D parameter, determining a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt, and then Determining a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt according to the frequency domain resource hopping pattern; or determining, according to the preset D2D parameter, multiple D2D transmission physics that the device needs to adopt A time domain resource hopping pattern between the resources, and then determining, according to the time domain resource hopping pattern, a frequency domain resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt.
- the processor 31 determines an initial D2D transmission physical resource by randomly selecting a resource, or by performing interference measurement on the candidate resource, or by using resource configuration information indicated by the network side or other UEs;
- the resource hopping pattern and the initial D2D transmission physical resources determine other D2D transmission physical resources.
- a user equipment provided by the embodiment of the present application includes:
- a first D2D transmission physical resource determining unit 21 configured to determine a first D2D transmission physical resource for transmitting a D2D signal of the first UE that performs D2D communication with the device;
- a D2D parameter determining unit 22 configured to determine a D2D parameter of the first UE
- the second resource hopping pattern determining unit 23 is configured to determine, according to the D2D parameter of the first UE, a resource hopping pattern between multiple D2D transmission physical resources of the first UE;
- a second D2D transmission physical resource determining unit 24 configured to determine, according to the first D2D transmission physical resource and the determined resource hopping pattern, a D2D transmission physical resource used by the first UE to transmit a D2D signal;
- the D2D signal detecting unit 25 is configured to detect the D2D signal of the first UE on the D2D transmission physical resource used by the first UE to transmit the D2D signal.
- the first D2D transmission physical resource determining unit 21 is specifically configured to:
- the D2D parameter determining unit 22 is specifically configured to:
- the D2D parameter of the first UE is determined by the network side or other UE indication.
- the second resource hopping pattern determining unit 23 is specifically configured to:
- the device further includes:
- the first resource hopping pattern determining unit 11 is configured to determine, according to the preset device-to-device D2D parameter, a resource hopping pattern between the plurality of D2D transmission physical resources that the device needs to adopt;
- the first D2D transmission physical resource determining unit 12 is configured to determine, according to the resource hopping pattern determined by the first resource hopping pattern determining unit, the plurality of D2D transmission physical resources;
- the D2D signal sending unit 13 is configured to send the D2D signal on the plurality of D2D transmission physical resources determined by the first D2D transmission physical resource determining unit.
- the units shown in FIGS. 6 and 8 can be placed on the same UE.
- another user equipment provided by the embodiment of the present application includes: a processor 41 and a memory 42, where the processor 41 is configured to perform the foregoing implementation of the receiving side UE by the embodiment of the present application.
- a computer program of the method the memory 42 is configured to store the computer program, can be used to configure the processor 41; According to actual needs, it may include a baseband processing component, a radio frequency processing component, and the like for transmitting related information. specifically:
- the processor 41 is configured to: determine a first D2D transmission physical resource for transmitting a D2D signal of the first UE that performs D2D communication with the device; determine a D2D parameter of the first UE; according to the D2D parameter of the first UE, Determining a resource hopping pattern between the plurality of D2D transmission physical resources of the first UE; determining, according to the first D2D transmission physical resource and the determined resource hopping pattern, the D2D transmission used by the first UE to transmit the D2D signal a physical resource; detecting a D2D signal of the first UE on a D2D transmission physical resource used by the first UE to transmit the D2D signal.
- the processor 41 detects the D2D signal of the first UE, and determines the D2D transmission physical resource of the D2D signal of the first UE to be the first D2D transmission physical resource for transmitting the D2D signal of the first UE; or Determining, by the network side or other UE, a first D2D transmission physical resource for transmitting a D2D signal of the first UE.
- the processor 41 obtains the D2D parameter of the first UE from the D2D signal detected on the first D2D transmission physical resource; or determines the D2D of the first UE by using the network side or other UE indication. parameter.
- the processor 41 determines, according to the D2D parameter of the first UE, a frequency domain resource hopping pattern between multiple D2D transmission physical resources that the first UE needs to adopt; or, according to the D2D of the first UE a parameter, determining a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt; or determining, according to the D2D parameter of the first UE, multiple D2D transmission physics that the first UE needs to adopt a frequency domain resource hopping pattern between the resources, and then determining, according to the frequency domain resource hopping pattern, a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt; or, according to the a D2D parameter of the UE, determining a time domain resource hopping pattern between the plurality of D2D transmission physical resources that the first UE needs to adopt, and then determining, according to the time domain resource hopping pattern, the first UE needs to adopt multiple The D2D
- the processor 41 further has the function of the processor 31, that is, also used for:
- the UE determines a resource hopping pattern between different D2D transmission physical resources according to its own D2D parameter, thereby obtaining a transmission physical resource used by multiple D2D signals, so that a certain UEs that transmit D2D signals in the same subframe at a time can be subsequently transmitted in different subframes, thereby improving the overall D2D signal transmission performance of the system.
- the technical solution provided by the embodiment of the present application has strong flexibility, and can be used for determining D2D discovery resources and for determining D2D communication resources; it can be used for type 1 discovery and type 2 discovery.
- UEs that transmit D2D signals in the same subframe regardless of whether they occupy the same frequency domain resources, have the opportunity to transmit on different subframes through the given resource hopping patterns, thereby detecting each other's D2D signals and improving The overall D2D transmission performance of the system.
- the processing of different frequency domain resource distances in the prior art is the same, and this effect cannot be achieved.
- embodiments of the present application can be provided as a method, system, or computer program product.
- the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
- the application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
Description
Claims (25)
- 一种设备到设备D2D信号发送方法,其特征在于,该方法包括:第一用户设备UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的资源跳频图样;第一UE根据所述资源跳频图样,确定所述多个D2D传输物理资源;第一UE在确定的所述多个D2D传输物理资源上发送D2D信号。
- 根据权利要求1所述的方法,其特征在于,所述D2D参数包括如下任意一种参数:网络侧预先通过高层信令配置的第一UE的跳频索引;第一UE的D2D标识ID;第一UE的目标UE的D2D标识ID;第一UE的D2D应用ID;第一UE的D2D应用用户ID;第一UE的目标UE的D2D应用用户ID;第一UE的D2D设备ID;第一UE的目标UE的D2D设备ID;第一UE的IP地址;第一UE的目标UE的IP地址;第一UE的全球定位系统GPS位置信息;第一UE的广播ID;第一UE传输的D2D信号中携带的信息;第一UE的D2D跳频配置参数。
- 根据权利要求2所述的方法,其特征在于,所述D2D参数是网络侧预先配置的。
- 根据权利要求1所述的方法,其特征在于,所述第一UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的资源跳频图样,包括:所述第一UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样;或者,所述第一UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样;或者,所述第一UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样,然后,根据该频域资源跳频图样确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样;所述第一UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样,然后,根据该时域资源跳频图样确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样。
- 根据权利要求1所述的方法,其特征在于,所述第一UE根据所述资源跳频图样,确定所述多个D2D传输物理资源,包括:所述第一UE通过随机选择资源的方式,或者通过在候选资源上进行干扰测量的方式,或者通过网络侧或者其他UE指示的资源配置信息,确定初始的D2D传输物理资源;所述第一UE根据所述资源跳频图样以及初始的D2D传输物理资源,确定其他D2D传输物理资源。
- 根据权利要求1所述的方法,其特征在于,所述D2D信号中包括所述D2D参数。
- 根据权利要求1所述的方法,其特征在于,所述D2D传输物理资源具体为如下之一:用于传输D2D同步信号的物理资源;用于传输D2D发现信号的物理资源;用于传输D2D通信信号的物理资源。
- 根据权利要求1所述的方法,其特征在于,所述D2D信号具体为如下之一:D2D同步信号;D2D发现信号;D2D通信信号。
- 一种设备到设备D2D信号接收方法,其特征在于,该方法包括:第二用户设备UE确定用于传输第一UE的D2D信号的第一D2D传输物理资源;第二UE确定该第一UE的D2D参数;第二UE根据该第一UE的D2D参数,确定该第一UE的多个D2D传输物理资源之间的资源跳频图样;第二UE根据所述第一D2D传输物理资源以及确定的资源跳频图样,确定该第一UE传输D2D信号所采用的D2D传输物理资源;第二UE在该第一UE传输D2D信号所采用的D2D传输物理资源上检测第一UE的D2D信号。
- 根据权利要求9所述的方法,其特征在于,所述第二UE确定用于传输第一UE的D2D信号的第一D2D传输物理资源,包括:第二UE检测第一UE的D2D信号,将检测到第一UE的D2D信号的D2D传输物理资源确定为用于传输第一UE的D2D信号的第一D2D传输物理资源;或者,第二UE通过网络侧或者其他UE指示,确定用于传输第一UE的D2D信号的第一 D2D传输物理资源。
- 根据权利要求9所述的方法,其特征在于,所述第二UE确定该第一UE的D2D参数,包括:第二UE从所述第一D2D传输物理资源上检测到的D2D信号中获取该第一UE的D2D参数;或者,第二UE确定该第一UE的D2D参数为预先约定好的参数;或者,第二UE通过网络侧或者其他UE指示,确定该第一UE的D2D参数。
- 根据权利要求9所述的方法,其特征在于,所述第二UE根据该第一UE的D2D参数,确定该第一UE的多个D2D传输物理资源之间的资源跳频图样,包括:所述第二UE根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样;或者,所述第二UE根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样;或者,所述第二UE根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样,然后,根据该频域资源跳频图样确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样;所述第二UE根据预先设置的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样,然后,根据该时域资源跳频图样确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样。
- 一种用户设备,其特征在于,该设备包括:第一资源跳频图样确定单元,用于根据预先设置的设备到设备D2D参数,确定该设备需要采用的多个D2D传输物理资源之间的资源跳频图样;第一D2D传输物理资源确定单元,用于根据所述资源跳频图样,确定所述多个D2D传输物理资源;D2D信号发送单元,用于在确定的所述多个D2D传输物理资源上发送D2D信号。
- 根据权利要求13所述的设备,其特征在于,所述D2D参数包括如下任意一种参数:网络侧预先通过高层信令配置的第一UE的跳频索引;第一UE的D2D标识ID;第一UE的目标UE的D2D标识ID;第一UE的D2D应用ID;第一UE的D2D应用用户ID;第一UE的目标UE的D2D应用用户ID;第一UE的D2D设备ID;第一UE的目标UE的D2D设备ID;第一UE的IP地址;第一UE的目标UE的IP地址;第一UE的全球定位系统GPS位置信息;第一UE的广播ID;第一UE传输的D2D信号中携带的信息;第一UE的D2D跳频配置参数。
- 根据权利要求14所述的设备,其特征在于,所述D2D参数是网络侧预先配置的。
- 根据权利要求13所述的设备,其特征在于,所述第一资源跳频图样确定单元,具体用于:根据预先设置的D2D参数,确定该设备需要采用的多个D2D传输物理资源之间的频域资源跳频图样;或者,根据预先设置的D2D参数,确定该设备需要采用的多个D2D传输物理资源之间的时域资源跳频图样;或者,根据预先设置的D2D参数,确定该设备需要采用的多个D2D传输物理资源之间的频域资源跳频图样,然后,根据该频域资源跳频图样确定该设备需要采用的多个D2D传输物理资源之间的时域资源跳频图样;根据预先设置的D2D参数,确定该设备需要采用的多个D2D传输物理资源之间的时域资源跳频图样,然后,根据该时域资源跳频图样确定该设备需要采用的多个D2D传输物理资源之间的频域资源跳频图样。
- 根据权利要求13所述的设备,其特征在于,所述第一D2D传输物理资源确定单元,具体用于:通过随机选择资源的方式,或者通过在候选资源上进行干扰测量的方式,或者通过网络侧或者其他UE指示的资源配置信息,确定初始的D2D传输物理资源;根据所述资源跳频图样以及初始的D2D传输物理资源,确定其他D2D传输物理资源。
- 根据权利要求13所述的设备,其特征在于,所述D2D信号中包括所述D2D参数。
- 根据权利要求13所述的设备,其特征在于,所述D2D传输物理资源具体为如下之一:用于传输D2D同步信号的物理资源;用于传输D2D发现信号的物理资源;用于传输D2D通信信号的物理资源。
- 根据权利要求13所述的设备,其特征在于,所述D2D信号具体为如下之一:D2D同步信号;D2D发现信号;D2D通信信号。
- 一种用户设备,其特征在于,该设备包括:第一D2D传输物理资源确定单元,用于确定用于传输与所述设备进行D2D通信的第一UE的D2D信号的第一D2D传输物理资源;D2D参数确定单元,用于确定该第一UE的D2D参数;第二资源跳频图样确定单元,用于根据该第一UE的D2D参数,确定该第一UE的多个D2D传输物理资源之间的资源跳频图样;第二D2D传输物理资源确定单元,用于根据所述第一D2D传输物理资源以及确定的资源跳频图样,确定该第一UE传输D2D信号所采用的D2D传输物理资源;D2D信号检测单元,用于在该第一UE传输D2D信号所采用的D2D传输物理资源上检测第一UE的D2D信号。
- 根据权利要求21所述的设备,其特征在于,所述第一D2D传输物理资源确定单元,具体用于:检测第一UE的D2D信号,将检测到第一UE的D2D信号的D2D传输物理资源确定为用于传输第一UE的D2D信号的第一D2D传输物理资源;或者,通过网络侧或者其他UE指示,确定用于传输第一UE的D2D信号的第一D2D传输物理资源。
- 根据权利要求21所述的设备,其特征在于,所述D2D参数确定单元,具体用于:从所述第一D2D传输物理资源上检测到的D2D信号中获取该第一UE的D2D参数;或者,确定该第一UE的D2D参数为预先约定好的参数;或者,通过网络侧或者其他UE指示,确定该第一UE的D2D参数。
- 根据权利要求21所述的设备,其特征在于,所述第二资源跳频图样确定单元,具体用于:根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样;或者,根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样;或者,根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样,然后,根据该频域资源跳频图样确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样;根据该第一UE的D2D参数,确定该第一UE需要采用的多个D2D传输物理资源之间的时域资源跳频图样,然后,根据该时域资源跳频图样确定该第一UE需要采用的多个D2D传输物理资源之间的频域资源跳频图样。
- 根据权利要求21-24任一权项所述的设备,其特征在于,所述设备还包括:第一资源跳频图样确定单元,用于根据预先设置的设备到设备D2D参数,确定该设备需要采用的多个D2D传输物理资源之间的资源跳频图样;第一D2D传输物理资源确定单元,用于根据所述第一资源跳频图样确定单元确定的资源跳频图样,确定所述多个D2D传输物理资源;D2D信号发送单元,用于在所述第一D2D传输物理资源确定单元确定的所述多个D2D传输物理资源上发送D2D信号。
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| US9942742B2 (en) * | 2014-09-26 | 2018-04-10 | Nokia Solutions And Networks Oy | Signal transmission for proximity-based services wireless communications |
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| CN106470393B (zh) * | 2015-08-14 | 2021-02-02 | 中兴通讯股份有限公司 | 一种传递信息的方法和装置 |
| WO2017038509A1 (ja) | 2015-09-01 | 2017-03-09 | 株式会社Nttドコモ | ユーザ装置及び通信方法 |
| US11177853B2 (en) | 2015-11-13 | 2021-11-16 | Xi'an Zhongxing New Software Co., Ltd. | Information transmission method and apparatus |
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| CN107770781B (zh) * | 2016-08-15 | 2021-08-27 | 华为技术有限公司 | 一种d2d同步信号发送方法及装置 |
| CN108124310B (zh) | 2016-11-29 | 2020-04-14 | 华为技术有限公司 | 一种跳频通信方法及其设备 |
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| US10764770B2 (en) * | 2018-08-29 | 2020-09-01 | Landis+Gyr Innovations, Inc. | Detecting network devices without joining a network |
| WO2020047865A1 (zh) * | 2018-09-07 | 2020-03-12 | 北京小米移动软件有限公司 | 发送响应信息的方法、装置、存储介质以及电子设备 |
| CN110958092A (zh) | 2018-09-26 | 2020-04-03 | 维沃移动通信有限公司 | 信号发送方法、接收方法及发送设备、接收设备 |
| CN111385765B (zh) | 2018-12-28 | 2022-07-22 | 大唐移动通信设备有限公司 | 信息传输的方法及终端 |
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| EP3096555B1 (en) | 2021-04-28 |
| TWI575916B (zh) | 2017-03-21 |
| US10028125B2 (en) | 2018-07-17 |
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| JP6411522B2 (ja) | 2018-10-24 |
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| KR20160108524A (ko) | 2016-09-19 |
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