WO2015113225A1

WO2015113225A1 - Synchronization signal forwarding method and user equipment

Info

Publication number: WO2015113225A1
Application number: PCT/CN2014/071700
Authority: WO
Inventors: 张祺智
Original assignee: 华为技术有限公司
Priority date: 2014-01-28
Filing date: 2014-01-28
Publication date: 2015-08-06
Also published as: CN105103632B; CN105103632A

Abstract

The present invention provides a synchronization signal forwarding method and a user equipment, comprising: the user equipment receiving a synchronization signal; the user equipment, based on a resource occupied by the synchronization signal, determining a resource occupied by a forwarded synchronization signal; and the user equipment, based on the resource occupied by the forwarded synchronization signal, sending the forwarded synchronization signal. In a technical scheme of the present invention, the user equipment determines the resource occupied by the forwarded synchronization signal based on the resource occupied by the synchronization signal that is received, and then the user equipment sends the forwarded synchronization signal, wherein the occupied resource can be used for identifying precision of the synchronization signal. When the precision of the synchronization signal that is received is determined, the user equipment can determine the precision of the forwarded synchronization signal based on the precision and forward the synchronization signal. Thus, when receiving more than two synchronization signals with different precision, the user equipment can still ensure that the synchronization signals are obtained, ensuring normal communication of the user equipment.

Description

Synchronous signal forwarding method and user equipment

TECHNICAL FIELD The present invention relates to communications technologies, and in particular, to a peer-to-peer signal forwarding method and user equipment. BACKGROUND OF THE INVENTION The development of mobile communication systems has brought about an increasing demand for bandwidth, and the allocation of bandwidth has become more and more crowded. Since the spectrum resources available for mobile communication are very limited, the bandwidth requirements that can be allocated cannot meet the requirements of actual systems. Device-to-Device (D2D) communication technology emerges as the times require. D2D communication refers to direct communication between user equipments without transiting through the base station, and can share resources with cell users under the control of the cell network. Therefore, the utilization of the spectrum will be improved, and the burden on the cellular network can be effectively alleviated.

When the user equipment performs D2D communication, it needs to provide a unified timing with the user equipment for communication, but the range that the same source can cover is small, and the user equipment is required to forward the same signal. The user equipment generally forwards the highest-precision peer-to-peer signal that can be received, and the accuracy of the forward-synchronized signal is lower than the received accuracy. However, when a user equipment receives two or more different-precision signals, if there is interference between the peer signals, the user equipment receiving the peer signals cannot obtain and forward the same signal. SUMMARY OF THE INVENTION Embodiments of the present invention provide a peer-to-peer signal forwarding method and a user equipment, so as to solve the problem that a user equipment cannot obtain a peer-to-peer signal due to mutual interference between different-precision peer signals.

A first aspect of the present invention provides a peer signal forwarding method, including:

The user equipment receives the peer signal;

Determining, by the user equipment, the accuracy of the peer signal according to the resource occupied by the peer signal; the user equipment determining the accuracy of the relay peer signal according to the precision of the peer signal; the user equipment according to the relay The accuracy of the peer signal determines the resources occupied by the relay peer signal;

The user equipment sends the relay peer signal according to the resource occupied by the relay peer signal. In a first possible implementation manner of the first aspect, determining, by the user equipment, the precision of the peer signal according to the resource occupied by the peer signal includes:

The user equipment determines the accuracy of the peer-to-peer signal according to the number of orthogonal frequency division multiplexing OFDM symbols according to the peer signal, where different precision peer signals occupy different resources.

In conjunction with the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, the different precision peer signals occupy different resources, including:

Different precision homogenous signals occupy a different number of OFDM symbols.

In conjunction with the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the different precision homophonic signals occupy different numbers of OFDM symbols, including: high-precision peer signal occupation The number of OFDM symbols is greater than the number of OFDM symbols occupied by low-precision peer signals.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, when an OFDM symbol belongs to both the resource set occupied by the arriving peer signal and the signal occupied by the transit peer signal When the resource set is set, the content transmitted by the relay peer signal on the OFDM symbol is the same as the received content.

With reference to the first aspect, any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the user equipment is used according to the resource occupied by the transit peer signal After sending the relay peer signal, the method further includes:

The user equipment randomly converts the transmission of the same-pass signal to receive the homogenous signal, and forwards the received highest-precision peer signal.

A second aspect of the present invention provides a peer-to-peer signal forwarding apparatus, including:

a receiving module, configured to receive, by the user equipment, a peer signal;

a determining module, configured to determine, according to a resource occupied by the peer signal received by the receiving module, a precision of the homogenous signal, and determine an accuracy of the transfer homonym signal according to the precision of the homogenous signal, according to the transfer The accuracy of the signal determines the resources occupied by the transit peer signal;

And a sending module, configured to send the relay peer signal according to the resource occupied by the relay peer signal determined by the determining module.

In a first possible implementation manner of the second aspect, the determining module is specifically configured to: determine, according to the number of orthogonal frequency division multiplexing OFDM symbols, the accuracy of the homophonic signal, and Different precision peer signals occupy different resources. In a second possible implementation manner of the second aspect, the determining module is specifically configured to: determine that different precision MIMO signals occupy different numbers of OFDM symbols.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the higher the precision determined by the determining module, the more the number of OFDM symbols occupied by the peer signal, the higher the accuracy The lower the number of OFDM symbols occupied by the peer signal.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the determining module is specifically configured to: when a certain OFDM symbol belongs to the resource set occupied by the arriving peer signal And when it belongs to the resource set occupied by the relay peer signal, the content transmitted by the transit peer signal on the OFDM symbol is the same as the received content.

With reference to the second aspect, the first to the fourth possible implementation of the second aspect, the device further includes:

a forwarding module, configured to: after transmitting, according to the resource occupied by the relaying peer signal, the transmission module to randomly transmit the relaying the same signal as the receiving peer signal, and receiving the same signal to the receiving module The highest precision peer signal is forwarded.

A third aspect of the present invention provides a user equipment, including:

a receiver for receiving a homogenous signal;

a processor, configured to determine, according to a resource occupied by the homogenous signal received by the receiver, an accuracy of the homogenous signal, and determine an accuracy of the transfer homonym signal according to the precision of the homogenous signal, according to the transfer The accuracy of the signal determines the resources occupied by the transit peer signal;

And a transmitter, configured to send the relay peer signal according to the resource occupied by the relay peer signal determined by the processor.

In a first possible implementation manner of the third aspect, the processor is specifically configured to: determine, according to the number of orthogonal frequency division multiplexing OFDM symbols, the precision of the homogenous signal according to the homology signal, and different The homogenous signal of precision occupies different resources.

In a second possible implementation manner of the third aspect, the processor is specifically configured to:

It is determined that the homologous signals of different precisions occupy a different number of OFDM symbols.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the higher the precision determined by the processor, the more the number of OFDM symbols occupied by the peer signal, the lower the precision The number of OFDM symbols occupied by the peer signal is less.

In conjunction with the third possible implementation of the third aspect, the fourth possible implementation in the third aspect The processor is specifically configured to: when an OFDM symbol belongs to both a resource set occupied by a received peer signal and a resource set occupied by a transit peer signal, the relay peer signal is in the OFDM The content sent on the symbol is the same as the content received.

With reference to the third aspect, any one of the first to fourth possible implementations of the third aspect, in a fifth possible implementation manner of the third aspect, the transmitter is further configured to send the transit peer signal After that, the random conversion sends the relay homonym signal to receive the homologous signal, and forwards the highest precision homologous signal that the receiver can receive.

The embodiment of the invention provides a peer-to-peer signal forwarding method and a user equipment. The user equipment determines the resource occupied by the relay peer signal according to the resource occupied by the received peer signal, and then the user equipment sends the relay peer signal. The resource occupied by the peer signal can be used to identify the accuracy of the peer signal. After the accuracy of the received peer signal is determined, the user equipment can determine the accuracy of the transmitted peer signal according to the precision and transit the peer. signal. When the user equipment receives two or more different precision signals, it can still guarantee the same signal and ensure the normal communication of the user equipment. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

1 is a flowchart of a method for forwarding a peer signal according to an embodiment of the present invention;

2 is a diagram showing a peer signal representation of a peer-to-peer signal forwarding method according to another embodiment of the present invention;

FIG. 3 is a scenario diagram of a method for forwarding a peer signal according to another embodiment of the present invention; FIG. 4 is a schematic diagram of a method for forwarding a peer signal according to another embodiment of the present invention; FIG. FIG. 6 is a schematic structural diagram of a user equipment according to another embodiment of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a user equipment according to another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

The user equipment referred to in this application may be a wireless terminal, which may be a device that provides voice and/or data connectivity to a user, a handheld device with wireless connectivity, or other processing device connected to a wireless modem. The wireless terminal can be a mobile terminal, such as a mobile telephone (or "cellular" telephone) and a computer with a mobile terminal, for example, a mobile device that can be portable, pocket, handheld, computer built, or in-vehicle. For example, Personal Communication Service (PCS), Cordless Phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), etc. . A wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point. Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

Additionally, the terms "system" and "network" are used interchangeably herein. The term "and/or" in this context is merely an association that describes the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B these three situations. In addition, the character " /" in this article generally means that the contextual object is an "or" relationship.

FIG. 1 is a flowchart of a method for forwarding a peer signal according to an embodiment of the present invention. As shown in FIG. 1, the method includes:

Step 101: The user equipment receives the peer signal;

The user equipment receives the peer signal sent by the base station or other user equipment.

Step 102: The user equipment determines the precision of the peer signal according to the resources occupied by the peer signal. Step 103: The user equipment determines the accuracy of the relaying the same signal according to the precision of the peer signal. Step 104: The user equipment determines, according to the precision of the relaying the same signal, that the relay is occupied by the same signal Resources.

The user equipment determines the accuracy of the peer-to-peer signal according to the number of Orthogonal Frequency-Division Multiple (OFDM) symbols used by the synchronization signal, and the different-frequency signals of different precisions occupy different resources, that is, different The precision homonym signal occupies a different number of OFDM symbols. As a feasible implementation manner, the high-precision homonym signal occupies more OFDM symbols than the low-precision homonym signal.

Optionally, if an OFDM symbol belongs to both the resource set occupied by the received peer signal and the resource set occupied by the transit peer signal, the content of the transit peer signal on the OFDM symbol is the same as that received. The 歩 signal is the same. Among them, the resource set is the general name of the resources occupied by the peer signal. Specifically, the user equipment determines the precision of the peer signal according to the resource occupied by the received peer signal, that is, the number of OFDM symbols, and further determines the accuracy of the relay signal according to the determined accuracy of the peer signal, where the relay The accuracy of the homogenous signal is lower than the accuracy of the received homologous signal. Finally, the resource occupied by the translating homonym signal is determined according to the determined accuracy of the translating homogenous signal, that is, the number of OFDM symbols included in the translating homogenous signal.

Step 105: The user equipment sends a relay peer signal according to the resource occupied by the relay peer signal. In the peer-to-peer signal forwarding method provided by the embodiment of the present invention, the user equipment determines the resource occupied by the transit peer signal according to the resource occupied by the received peer signal, and then the user equipment sends a transit peer signal, where the occupied resource It can be used to identify the accuracy of the peer signal. After the accuracy of the received peer signal is determined, the user equipment can determine the accuracy of the transmitted peer signal and relay the peer signal according to the accuracy. When the user equipment receives two or more different precision signals, it can still guarantee the same signal, which ensures the normal communication of the user equipment.

A peer-to-peer signal forwarding method is provided by another embodiment of the present invention. The embodiment provides that the user equipment randomly converts the transmission of the same-pass signal to the receiving peer signal when the same-signal transmission signal is transmitted, to determine whether there is higher precision. The level of the peer signal is ignored by itself.

The homogenous signals of different precisions are represented by different levels of homologous signals, or expressed in other forms. As long as the homogenous signals can be distinguished from the scope of the present invention, the present invention is not limited to the following examples.

For example, in the embodiment of the present invention, the homogenous signals of different precisions are expressed in the following manner:

The first-order homologous signal, the second-order homologous signal, and the third-order homologous signal are the same as the n-level homologous signal, and the first-order homogenous signal has the highest accuracy. The homogenous signals of different precisions may be stored in the terminal or the base station in a preset manner, which is not limited by the present invention.

Further, the level 1 peer signal (the highest level) is transmitted by the evolved Node B (eNB) in the downlink frequency band, which is naturally distinguishable from other levels. The remaining levels are as shown in Figure 2, which can be distinguished by the following methods:

The level 2 homologous signal uses 4 OFDM symbols; the level 3 homologous signal uses 3 OFDM symbols; the level 4 homologous signal uses 2 OFDM symbols; the level 5 homologous signal uses 1 OFDM symbol, and each used The signals transmitted by the OFDM symbols are the same, wherein each block in the figure represents one OFDM symbol, and "transmit ₁₁ " indicates the content transmitted by the used OFDM symbol, where n can be 1, 2, 3, 4.

As shown in FIG. 3, it is assumed that the scenario of the embodiment includes a base station, a user equipment B, a user equipment C, and a user equipment D, wherein the coverage radius of the base station A, the user equipment B, the user equipment C, and the user equipment D are both approximately Half of the length of the triangle, the forwarding process of the peer signal is as follows:

The base station A transmits a class 1 peer signal, and after the user equipment B within the coverage of the base station A receives the peer signal transmitted by the base station A in the downlink frequency band, it is determined that the peer signal is a class 1 peer signal. User equipment B forwards the peer signal, and the level of the peer signal after being forwarded is lower than the level of the peer signal received by the user equipment. For example, any of the following levels may be used: Level 2, Level 3 Level 4, level 5; in this embodiment, the level 2 peer signal is used as the relay peer signal to be sent by the user equipment B; the user equipment C located in the coverage of the user equipment B receiving the signal receives the peer sent by the user equipment B. The signal is judged according to the number of OFDM symbols used in the homologous signal, and the accuracy of the homogenous signal is 2, and the homologous signal is forwarded, and the accuracy level of the transmitted homologous signal is lower than that received by the user equipment C. For the accuracy level of the peer signal, for example, any of the following levels can be used: Level 3, Level 4, Level 5, in this embodiment, the level 3 peer signal is used as the relay peer to be sent by the user equipment C. a signal, and then the user equipment C transmits a level 3 peer signal as a relay peer signal; the user equipment D located within the coverage of the user equipment C receiving signal receives the peer signal sent by the user equipment C, according to the same letter The number of OFDM symbols used in the judgment determines that the accuracy of the homogenous signal is a level 3 homologous signal, and the homologous signal is forwarded, and the accuracy of the forwarded homologous signal is lower than that of the user equipment D. For the accuracy level, for example, any of the following levels may be adopted: Level 4, Level 5, in this embodiment, the level 4 peer signal is used as the relay peer signal to be transmitted by the user equipment D; At this time, the base station A sends a level 1 peer signal, the user equipment B forwards the level 2 peer signal, the user equipment C forwards the level 3 peer signal, and the user equipment D forwards the level 4 peer signal.

The level of the relay peer signal sent by the user terminal may also be related to the hardware condition of the device itself. For example, a terminal with a poor crystal oscillator may send a lower-level peer signal.

Further, as shown in FIG. 4, for the application scenario of FIG. 3, it may further include: user equipment E, where the coverage radius of user equipment E and base station A, user equipment B, user equipment C, and user equipment D It is about half of the side length of the triangle, and the base station A transmits the level 1 peer signal, the user equipment B forwards the level 2 peer signal, the user equipment C forwards the level 3 peer signal, and the user equipment D forwards the level 4 peer signal.

When the user equipment E is powered on in the figure, it will receive the level 1 peer signal sent by the base station A at the same time, the user equipment B forwards the level 2 peer signal, the user equipment C forwards the level 3 peer signal, and the user equipment D forwards 4 The superimposed signal of the peer-to-peer signal, because the level-1 peer signal forwarded by the base station A is transmitted in the downlink bandwidth, can forward the level 2 peer signal with the user equipment B, the user equipment C forwards the level 3 peer signal, and the user equipment D forwards 4 The superimposed signal of the level of the same signal is distinguished, and since the level 1 of the class 1 is the highest, the user equipment E receives the highest level 1 and the same signal and forwards it. The accuracy level of the chirp signal is lower than the accuracy level of the homologous signal received by the user equipment E. For example, any of the following levels may be used: Level 2, Level 3, Level 4, Level 5, transmitted The accuracy level of the transfer peer signal is related to the hardware condition of the device E itself, for example: The terminal with poor crystal oscillator may send a lower level of the same signal. In this embodiment, the level 2 peer signal is used as the relay peer signal to be sent by the user equipment E. At this time, the base station A sends the level 1 peer signal, the user equipment B forwards the level 2 peer signal, and the user equipment C forwards the level 3. The peer signal, the user equipment D forwards the level 4 peer signal, and the user equipment E forwards the level 2 peer signal.

Because the higher the accuracy level of the peer signal, the smaller the error, the user equipment should preferentially select the highest-precision level of the peer signal that can be received by the user equipment. At this time, the user equipment D is simultaneously at the user equipment C and the user equipment. Within the coverage of E, the level 3 peer signal forwarded by the user equipment C is superimposed with the level 2 peer signal forwarded by the user equipment E, and is a level 2 peer signal, and if the user equipment D is directly in the forwarding user equipment C The state of the transmitted level 3 peer signal cannot receive the level 2 peer signal sent by the user equipment E. User equipment D then mistakenly believes that the user sends E to send a signal that is only a level 3 peer, thus not discarding the one that is being tracked. The level 3 peer signal sent by user equipment C in turn tracks the level 2 peer signal sent by user equipment E. So I lost the opportunity to get a higher level of peers.

Therefore, the user equipment D should be randomly forwarded to receive the signal to determine whether there is a higher precision level of the peer signal.

When the user equipment D forwards to receive and starts receiving the peer signal, it receives the level 2 peer signal sent by the user equipment E, and forwards the level 2 peer signal.

In the peer-to-peer signal forwarding method provided by the embodiment of the present invention, the user equipment determines the resource occupied by the transit peer signal according to the resource occupied by the received peer signal, and then the user equipment sends the relay peer signal. The occupied resource may be used to identify the accuracy of the peer signal. After the accuracy of the received peer signal is determined, the user equipment may determine the accuracy of the transmitted peer signal and relay the peer signal according to the accuracy. Moreover, the user equipment randomly forwards to receive, so that the higher-precision level of the peer signal is not ignored, so that when the user equipment receives two or more different-precision signals, the user can still obtain the same signal and forward it. The higher precision homologous signal ensures the normal communication of the user equipment.

FIG. 5 is a schematic structural diagram of a peer-to-peer signal forwarding apparatus according to another embodiment of the present invention, as shown in FIG.

As shown in FIG. 5, the device includes: a receiving module 11, a determining module 12, and a sending module 13, wherein the receiving module is configured to receive a peer signal by the user equipment, and the determining module 12 is configured to occupy the peer signal received by the receiving module 11. The resource determines the accuracy of the 歩 signal, determines the accuracy of the 歩歩 signal according to the accuracy of the 歩 signal, and determines the resource occupied by the transfer 歩 signal according to the accuracy of the transfer 歩 signal; the sending module 13 is configured to determine according to the determining module 11 The resource used by the relay peer signal sends a relay signal.

The receiving module 11 receives the peer signal sent by the other user equipment, and then the determining module 12 determines the peer signal according to the number of OFDM symbols used by the peer signal received by the receiving module 11. Accuracy, optional, different precision homogenous signals occupy different resources, further, different precision homonym signals occupy different numbers of OFDM symbols, and the higher precision of the number of OFDM symbols occupied by the same signal The more the homology signal with lower accuracy, the smaller the number of OFDM symbols occupied.

When an OFDM symbol belongs to both the resource set occupied by the arriving peer signal and the resource set occupied by the transit peer signal, the content transmitted by the relay peer signal on the OFDM symbol is the same as the received content. , where the resource set is the total amount of resources occupied by the peer signal Said.

Specifically, the determining module 12 determines the precision of the peer signal according to the resource occupied by the peer signal received by the receiving module 11, that is, the number of the OFDM symbol, and further determines the accuracy of the relay signal according to the determined accuracy of the peer signal. Wherein, the accuracy of the transfer homonym signal is lower than the accuracy of the received homologous signal, and finally the resource occupied by the transfer homonym signal is determined according to the determined accuracy of the transfer homonym signal, that is, the OFDM symbol included in the transfer homonym signal The number of the transmission, and the resource occupied by the determined relay peer signal is sent to the sending module 13; when the sending module 13 receives the resource occupied by the relay peer signal determined by the determining module 12, the transmitting and transmitting the same signal.

Further, as shown in FIG. 6, for the above-mentioned peer-to-peer signal forwarding device, the method further includes: a forwarding module 14 configured to send, according to the resource occupied by the transmitting module 13 according to the relaying the same signal After the transfer of the homology signal, the random transfer transmission relay signal is a reception homonym signal, and the highest precision homology signal that the receiving module 11 can receive is forwarded. The user equipment provided by the embodiment of the present invention is an execution device of the peer-to-peer signal forwarding method provided by the first embodiment of the present invention, and the specific process for performing the peer-to-peer signal forwarding method can be referred to FIG. 1, FIG. 2, FIG. 3, and FIG. The related description in the method embodiment shown is not repeated here.

The user equipment provided by the embodiment of the present invention determines the resource occupied by the relay peer signal by using the resource occupied by the peer signal, and then the user equipment sends the relay peer signal. The occupied resource may be used to identify the accuracy of the peer signal. After the accuracy of the received peer signal is determined, the user equipment may determine the accuracy of the transmitted peer signal and relay the peer signal according to the accuracy, and The user equipment will be randomly forwarded to receive, so that the higher-precision homonym signal will not be ignored, so that when the user equipment receives two or more different-precision signals, it can still guarantee the same signal and forward higher precision. The peer signal ensures the normal communication of the user equipment.

FIG. 7 is a schematic structural diagram of a user equipment according to another embodiment of the present invention. As shown in FIG. 7, the user equipment provided in this embodiment includes: a receiver 21, a processor 22, and a transmitter 23, wherein the receiver 21, The processor 22 is configured to determine the accuracy of the peer signal according to the resource occupied by the peer signal received by the receiver 21, and determine the accuracy of the relay signal according to the accuracy of the peer signal, according to the relay The accuracy of the 歩 signal determines the resources occupied by the relay 歩 signal; the transmitter 23 is configured to send the relay 歩 signal according to the resource occupied by the relay 歩 signal determined by the processor 22 .

The receiver 21 receives the peer signal sent by other user equipment, and then the processor 22 According to the number of OFDM symbols received by the receiver 21, the accuracy of the same signal is determined by using the number of OFDM symbols. Alternatively, the same-frequency signals of different precisions occupy different resources; further, the different signals of different frequencies are used differently. The number of OFDM symbols used for the number of OFDM symbols is higher, and the higher the accuracy, the smaller the number of OFDM symbols used for the same signal.

When an OFDM symbol belongs to both the resource set occupied by the arriving peer signal and the resource set occupied by the transit peer signal, the content transmitted by the relay peer signal on the OFDM symbol is the same as the received content. , where the resource set is a general term for the resources occupied by the peer signal.

Specifically, the processor 22 determines the precision of the peer signal according to the determined resource occupied by the peer signal, that is, the number of OFDM symbols, and determines the accuracy of the relay signal according to the determined accuracy of the peer signal. Wherein, the accuracy of the transfer homonym signal is lower than the accuracy of the received homologous signal, and finally the resource occupied by the transfer homonym signal is determined according to the determined accuracy of the transfer homonym signal, that is, the OFDM symbol included in the transfer homonym signal The number is sent to the transmitter 23 for the resource occupied by the determined relay peer signal; when the transmitter 23 receives the resource occupied by the relay peer signal determined by the processor 22, it transmits the same signal.

Optionally, the transmitter 23 is further configured to: after transmitting the relay homonym signal, randomly convert the transmission intermediate signal to receive the homogenous signal, and forward the highest-precision peer signal that the receiver 21 can receive. The user equipment provided by the embodiment of the present invention may be used to implement the technical solution of the foregoing method embodiment, and the implementation principle and the technical effect are similar, and details are not described herein again.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be implemented by hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, when executed, The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A synchronous signal forwarding method, characterized by including:

User equipment receives synchronization signals;

The user equipment determines the accuracy of the synchronization signal based on the resources occupied by the synchronization signal; the user equipment determines the accuracy of the relay synchronization signal based on the accuracy of the synchronization signal; the user equipment determines the accuracy of the relay synchronization signal based on the accuracy of the synchronization signal. The accuracy of the synchronization signal determines the resources occupied by the relay synchronization signal;

The user equipment sends the relay synchronization signal according to the resources occupied by the relay synchronization signal.

2. The method according to claim 1, wherein the user equipment determines the accuracy of the synchronization signal based on the resources occupied by the synchronization signal including:

The user equipment determines the accuracy of the synchronization signal according to the number of orthogonal frequency division multiplexing OFDM symbols used in the synchronization signal, where synchronization signals with different accuracy occupy different resources.

3. The method according to claim 2, characterized in that the synchronization signals of different precisions occupy different resources, including:

Synchronization signals with different precisions occupy different numbers of OFDM symbols.

4. The method according to claim 3, characterized in that the synchronization signals of different precisions occupy different numbers of OFDM symbols, including: a high-precision synchronization signal occupies more OFDM symbols than a low-precision synchronization signal. The number of OFDM symbols occupied by the synchronization signal.

5. The method according to claim 4, characterized in that when an OFDM symbol belongs to both the resource set occupied by the received synchronization signal and the resource set occupied by the relay synchronization signal, the relay synchronization signal The content sent on the OFDM symbol is the same as the content received.

6. The method according to any one of claims 1 to 5, characterized in that, after the user equipment sends the relay synchronization signal according to the resources occupied by the relay synchronization signal, it further includes:

The user equipment randomly converts the sending relay synchronization signal into the receiving synchronization signal, and forwards the received synchronization signal with the highest accuracy.

7. A synchronous signal forwarding device, characterized by including:

Receiving module, used for user equipment to receive synchronization signals;

Determining module, configured to determine the accuracy of the synchronization signal based on the resources occupied by the synchronization signal received by the receiving module, and determine the accuracy of the relay synchronization signal based on the accuracy of the synchronization signal, based on Determine the resources occupied by the transfer synchronization signal according to the accuracy of the transfer synchronization signal; a sending module, configured to send the transfer synchronization signal according to the resources occupied by the transfer synchronization signal determined by the determination module.

8. The device according to claim 7, wherein the determination module is specifically configured to: determine the accuracy of the synchronization signal according to the number of orthogonal frequency division multiplexing OFDM symbols used in the synchronization signal, And synchronization signals with different precisions occupy different resources.

9. The device according to claim 7, wherein the determination module is specifically configured to: determine that synchronization signals with different precisions occupy different numbers of OFDM symbols.

10. The device according to claim 9, wherein the synchronization signal with higher accuracy determined by the determination module occupies more OFDM symbols, and the synchronization signal with lower accuracy occupies more OFDM symbols.

The fewer OFDM symbols.

11. The device according to claim 10, wherein the determining module is specifically configured to: When a certain OFDM symbol belongs to both the resource set occupied by the received synchronization signal and the resource set occupied by the relay synchronization signal When , the content of the relay synchronization signal sent on the OFDM symbol is the same as the received content.

12. The device according to any one of claims 7-11, characterized in that the device further includes:

A forwarding module, configured to randomly convert the sending transfer synchronization signal into a receiving synchronization signal after sending the transfer synchronization signal according to the resources occupied by the transfer synchronization signal according to the sending module, and perform The synchronization signal with the highest accuracy is forwarded.

13. A user equipment, characterized by: including:

Receiver, used to receive synchronization signals;

A processor, configured to determine the accuracy of the synchronization signal based on the resources occupied by the synchronization signal received by the receiver, determine the accuracy of the relay synchronization signal based on the accuracy of the synchronization signal, and determine the accuracy of the relay synchronization signal based on the accuracy of the synchronization signal. The accuracy of the signal determines the resources occupied by the relay synchronization signal;

A transmitter, configured to send the relay synchronization signal according to the resources occupied by the relay synchronization signal determined by the processor.

14. The user equipment according to claim 13, wherein the processor is specifically configured to: determine the accuracy of the synchronization signal according to the number of orthogonal frequency division multiplexing OFDM symbols used in the synchronization signal. , and synchronization signals with different precisions occupy different resources.

15. The user equipment according to claim 13, characterized in that the processor is specifically used to:

It is determined that synchronization signals with different precisions occupy different numbers of orthogonal frequency division multiplexing OFDM symbols.

16. The user equipment according to claim 15, wherein the synchronization signal with higher precision determined by the processor occupies more OFDM symbols, and the synchronization signal with lower precision occupies more OFDM symbols. The smaller the number.

17. The user equipment according to claim 16, wherein the processor is specifically configured to: when a certain OFDM symbol belongs to both the resource set occupied by the received synchronization signal and the resource occupied by the relay synchronization signal When assembled, the content sent by the relay synchronization signal on the OFDM symbol is the same as the received content.

18. The user equipment according to claims 13-17, characterized in that, the transmitter is further configured to randomly convert the sending relay synchronization signal into a receiving synchronization signal after sending the relay synchronization signal, and The receiver forwards the synchronized signal with the highest accuracy it can receive.