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Signal retransmission apparatus, method, and communication system

Technical field

The present invention relates to communications technology, in particular a signal retransmission apparatus, method, and communication system.

Background art

3GPP RAN has begun in LTE system for device to device (D2D, Device to Device)-related issues, to assess the LTE service between geographically adjacent device to device. D2D operations can be found including D2D (D2D Discovery) and D2D communications (D2D Communication).

In the discovery of D2D user equipment in the resource pool configuration (resource pool), select the resource to send signal (discovery signal). Signal contains at least the discovery message (discovery message) and may contain found leading (discovery preamble) information. According to the current progress, are mentioned in a discovery cycle (discovery period) repeated many times in discovery messages, thereby enhancing the D2D performance.

For example, a discovery cycle, host a discovery (discovery) media access control (MAC, Medium Access Control) protocol data units (PDU and Protocol Data Unit) found that messages can be sent in a repeated manner, improve the D2D detection probability.

The other hand, the D2D D2D communications is an important subject. Based on the current progress, D2D sending end user device D2D broadcast data when it is sent, also carried out a number of retransmission method to improve the quality of communication

It should be noted that above the technical background of this invention is to facilitate the introduction of technical solutions for clear and complete instructions, and skilled in the art to understand and elaborate. Just because these programmes in the background of the invention described and that the technical proposal the technical part for those skilled in public.

Contents of invention

In the discovery of D2D, when repeat when sending discovery messages, sent by the sending end user devices in each repeat of D2D resource selection methods need to be defined in the standard. According to currently of discussion progress, provides has two species method: (1) sent end user equipment in can for repeat sent found message of found resources in the random select first copies resources, also that random select first times sent of resources; other follow-up repeat sent of resources by first copies resources decided; (2) sent end user equipment in found resources in the for each a times repeat sent are random select resources.

However, the invention found in the above method (1), if the subsequent repeated just decided by the first resource of resources, problems that may arise are, send end users when multiple D2D device randomly selects the first resource is the collision when the D2D found messages sent following repeated resources will occur collisions. Thus, cannot guarantee more D2D user equipment signal between the lower probability of collision.

In the above method (2), to some extent can be sent to multiple randomized between end user equipment signal effect. For receiving end user devices, however, is difficult to achieve the merging of multiple copies of a signal. The reason is that receiving end user does not know the location of each signal copy resources only on a per-copy resources possible merge location hypotheses. Assume that each time you send a signal available resources, select the n, if necessary repeated m times, and for the receiving end user device, worst case is nm attempts to decode the signal may be out correctly. This each time you send a copy of the signal are randomly selected resources will greatly increase the complexity of decoding and demodulation of the received end user devices, thus increasing force image: ^ consumption (power consumption).

So, in D2D found in the, dang D2D found message in a found cycle for continuous or non-continuous of repeat sent of when, need research of a problem is for D2D sent end user equipment, sent found signal copy of resources select problem, that while need random of multiple D2D sent end user equipment sent found signal of interference problem, on the need simplified D2D received end user equipment of received complex degrees. D2D communication remains the same, as D2D found under resources select the problem.

Embodiments of the present invention to provide a signal retransmission apparatus, method, and communication system. Determine when the resource sends a signal, we should fully take into account the random users as much as possible interference between the devices, also to take into account as far as possible reduce the complexity of receiving blind detection of end user devices.

According to the first aspect of the embodiment of the invention provides a method for signal retransmission, applies to first user devices, which includes:

According to the initial signal of the resource and determine retransmit the signal frequency hopping pattern resources; resources to the second user equipment according to re-transmit the signal.

According to the second aspect of the embodiment of the invention provides a device for signal retransmission, distribution in the first user device, wherein the device comprises:

Resources unit, according to the initial signal of resources as well as determine retransmit the signal frequency hopping pattern resource;

Signal unit, determined in accordance with the resources unit resources, retransmit the signal to the second user equipment.

According to a third aspect of the embodiment of the invention provides a method for signal retransmission, applied to the second user equipment, which includes:

Receives the first retransmission of user equipment signal which retransmit the signal of a resource sent by the first user equipment according to the initial signal of the resources as well as frequency hopping pattern identified.

According to an embodiment of the invention of the fourth dimension, provide a device for signal retransmission, in the configuration to a second user equipment, the devices include:

Signal receiving unit receives the first retransmission of user equipment signal which retransmit the signal of a resource sent by the first user equipment according to the initial signal of the resources as well as frequency hopping pattern identified.

According to an embodiment of the invention of the fifth dimension, providing a communication system, the communications system, including: the first user's device, based on the initial signal of resources, as well as determine retransmit the signal frequency hopping pattern resources, and identify the resources to retransmit the signal;

Second user equipment receives the first retransmission of the signal of user equipment.

According to embodiments of the present invention a, provides a computer-readable program, when when you execute the program on a user's device, the program allows computer the user device performing signal retransmission method as described above.

According to embodiments of the present invention is an aspect provides a storage medium of storing computer-readable program, wherein the computer readable program allows computer users device performing signal retransmission method as described above.

The beneficial effect of the embodiment of the invention is that, according to the initial signal of resources and determine retransmit signals of frequency hopping pattern resources can be as random as possible interference between the user equipment, can also try to reduce the complexity of receiving blind detection of end user devices.

Reference to the description and drawings, detailed disclosure of specific embodiments of the present invention, indicating the manner in which the principle of the invention can be used. It should be understood, the embodiment of the invention is not limited in scope. In the context of the spirit and provisions of the appended claims, embodiments of the present invention includes a number of changes, modifications, and equivalence.

For a description and/or shows one implementation can be characterized in the same or similar way in one or more other embodiments use, combined with the characteristics of other embodiments of, or a substitute for other features in the.

It should be emphasized that the term "include/includes" when used in this article refers to features, the existence of the whole, steps or components, but does not exclude one or more other features, whole, or additional steps or components.

Description

Referring to the following figure can better understand the many aspects of the invention. Parts drawings are not to scale, but only in order to show the principle of the invention. In order to show and describe the parts of the invention, drawings, parts may be enlarged or reduced.

In the invention of a photo or elements and characteristics described in one implementation can be with one or more other drawings or embodiments shown combining elements and characteristics. In addition, drawings, marking several drawings similar to the corresponding components and can be used to indicate more than one implementation using the corresponding part.

Figure 1 is an embodiment of the present invention a flow diagram of the signal retransmission method 1;

Figure 2 is the embodiment of the invention 1 signal sent examples of diagrams;

Figure 3 is an embodiment of the present invention 2 retransmission method of signal flow diagram;

Figure 4 is an embodiment of the present invention 3 signal retransmission of device a diagram;

Figure 5 is the embodiment of the invention a 3 a schematic diagram of the configuration of the user's device;

Figure 6 is an embodiment of the present invention 4 signal retransmission of device a diagram;

Figure 7 is an embodiment of the present invention 5 of the communication system of a sketch.

The specific way of implementing

Reference to the accompanying drawings, by following the instructions, the aforementioned as well as other characteristics of the invention will become apparent. In the description and drawings, in particular specific embodiments of the present invention is disclosed, it shows the partial implementation of the principles of the present invention can be used, you should be aware of is, the invention is not limited to the embodiments described, on the contrary, annexed to the present invention comprises a falling into the scope of the claims of all modifications, variants and equivalents.

In this embodiment, signals sent between the two user devices or retransmission (also called repeated), wherein the two users or D2D D2D communication devices can find. But the invention is not limited to this, for example, can also be applied to D2D takes between two user devices, can be determined according to the actual situation of specific scenes. Only in the D2D communications between two user devices found or D2D for signal retransmission, for example, the embodiment of the present invention is described.

Implementing example 1

Embodiments of the present invention provides a method for signal retransmission, used as a first user equipment signal sender side. Figure 1 is an embodiment of the present invention a flow diagram of the signal retransmission method, as shown in Figure 1, the method comprises:

101, first user equipment according to the initial signal of resources as well as frequency hopping pattern, determine retransmit the signal of resources;

102, first user devices based on identified resources, and retransmit the signal to the second user equipment.

In this embodiment, the signal can be found of D2D found signals, can also be a D2D communications data, but the invention is not limited to this. In addition, frequency hopping pattern (frequency hopping pattern) can be determined in advance which the frequency hopping pattern can be a community dedicated to the (cell-specific) or public (common), also can be a users device-specific (UE-specific), but the invention is not limited to this. For example, the frequency hopping patterns also can be an existing criteria in the physical uplink shared channel (PUSCH, Physical Uplink Shared Channel) type of jump. On the content of the frequency hopping, you can also refer to the technical, not going to repeat them here.

In steps 101, frequency hopping patterns associated with one or more of the following factors: the initial signal resources; the repeat/repeat frame signal events marking; and ID information. According to the frequency hopping pattern resource information to determine the of the transmitted signal. But the invention is not limited to this, also according to actual condition factors associated with frequency hopping pattern.

For example, relevant ID information can be used for all the universal ID of user equipment (common ID), or the user ID of the device-specific; For example, can be a cell ID, can also be sent user ID of the device or community radio network temporary identity (C-R TI, Cell Radio Network Temporary Identifier). But the invention is not limited to this, based on real life scenarios to identify specific information.

As an example, in D2D communications, resources for retransmission sequence number for the first time using the following formula (1) or (2) that the invention is not limited to this.

"( ) = (w(0) + /£» + /( , )) mod N ( 1 )

Or

η(ί) = ("(0) + /( , j, ID)) mod N (2 )

Among them, the (0) represents the initial signals are sent using the resource number, that is, starting the resource block (RB, Resource Block); «(0 means the retransmission frequency starting RB position; f (about the retransmit a frame label # "function is related to the heavy frame label and ID-related functions, such as the

Function is initial value by ID decided of pseudo random sequence; n said frequency domain Shang available of resources number that RB number; ID said sent user equipment ID related of information, according to the sent UE of mode (for example Model or Mode2, as Hou by said), frequency jumped variable pattern can for cell-specific or UE-specific form, that different mode of sent UE in repeat sent D2D signal Shi, their used independent of frequency jumped variable type.

Among them, the Model of the UE's frequency hopping type sent by the eNB configuration and send receive UE UE to SA, this tells the receiving frequency hopping type UE. To send UE and receiving UE based on the same type of jump, respectively for sending data to and receiving data. Mode2 sent UE to choose type of frequency hopping, and in SA to receive UE, this tells the receiving frequency hopping type UE.

For example, when sending end user devices using Mode 1 o'clock, frequency hopping pattern is cell-specific, where the ID is the user's device to serve the community of ID, that is, cell ID, or D2D Radio ID. When the sending end user devices for Mode 2 o'clock, frequency hopping pattern is UE-specific, the ID is the user ID of the device, such as C-RNTI or other ID that uniquely identifies the user's device.

This is different from existing technology, the embodiment of frequency hopping pattern to determine the retransmission-based resource, can be as random as possible interference between the user equipment and that, based on frequency hopping pattern in the receiver can determine the retransmission of resources, you can try to reduce the complexity of receiving blind detection of end user devices.

According to the current debate D2D communications, sent from the perspective of end user devices, according to D2D communications resources are allocated by the eNB or UE to choose distribution, D2D communication there are two models: Model and Mode2. Among them, the Model of the sending end user devices, D2D's resources are used for communication by the eNB configuration for Mode2 sending end user devices, D2D's resources are used for communication equipment for the user to choose.

In addition, the discussion found in D2D, D2D is divided into two types: Type 1 Wo Type2 D2D D2D Discovery Discovery. Type2 D2D discovery, how resources are allocated according to the eNB found further divided into Type2A and Type2B.

Among them, Typel D2D discovery refers to the eNB semi-static allocation of a resource pool for D2D found that this pool is D2D user equipment (DUEs) shared (that is, common resource pool); Type2A D2D discovery refers to the eNB D2D found events for each DUE assigned dynamic UE-specific finding resources; Type2B D2D discovery refers to the eNB semi-static allocation of UE-specific finding resources.

In this embodiment, D2D communication for different modes of the first user devices, frequency hopping pattern is different, or D2D found for different types of users, as described in the device, frequency hopping pattern is different. Send different patterns of UE for D2D used frequency hopping communication

Samples are configured independently of each other, sending UE used for different types of D2D found configuration of the frequency hopping pattern is independent of each other.

In one embodiment, for D2D communication Mode l send the end user devices, you can receive send signals sent by the base station is used to configure the initial configuration information for the resource, the sending end user equipment using frequency hopping pattern is a community dedicated to the (cell-specific) or public (common). In addition, can also receive a frequency hopping type that is configured by the base station, and then sent to the receiving end user end user devices in the device indicates the type of frequency hopping used in SA.

For example, when sending signals when eNB assigned resources, resources by eNB scheduling between multiple user device open, frequency hopping pattern may be cell-specific or common. ENB need only assign initial resources used to send the signal, follow-up if the signal is sent in duplicate copy sent or retransmitted several times, used to copy resources can be sent during the initial resources according to the cell-specific (or common) of frequency hopping pattern is hopping.

Thus, eNB sent initial signals of different users equipment resources can be staggering, retransmission of the signal based on the cell-specific (or common) of frequency hopping frequency hopping pattern, can reduce the retransmission signals used by multiple user device resource overlap (overlap).

In another embodiment, for D2D communications used in Mode 2 of the sending end user devices, sending the signal will be free to select the initial configuration information for the resource, the sending end user equipment using frequency hopping pattern is the user equipment (UE-speCIFIC). In addition, the sending end user devices will be free to choose the type of frequency hopping used, and sent to the receiving end user devices indicating the type of frequency hopping used in the SA.

For example, when UE choice sends signal resources when interference between multiple users through frequency hopping device of random effects. Mainly through the random choice of resources to achieve interference randomized, so the frequency hopping pattern is UE-specific.

Here, the user equipment choice sends signal when resources are used for signal transmission, is no guarantee that a different user send used equipment to choose the initial resources do not crash. In this case, UE-specific different frequency hopping pattern making user equipment sent by the initial resources occur collisions can also randomize subsequent retransmissions (repeatedly send a copy) of the resource, thereby reducing resources for subsequent retransmission probability of collision.

In another embodiment, for D2D finds Type 1 sent in end user devices, can be preset in the pool to choose initial configuration information for the resource sends the signal. Among them, the frequency hopping pattern is the user equipment (UE-specific), the frequency hopping type eNB or base station configuration reference

Source pool configuration with down.

In another embodiment, for D2D found in Type 2 a Type 2B or send the end user devices, can receive a base station sending the signal is used to configure the initial configuration information for the resource. Among them, the frequency hopping pattern is a community dedicated to the (cell-specific) or in the common (common), the frequency hopping type eNB or base station configuration when configuring resource information.

In this embodiment, for different scenarios and different jump information can be used for different purposes. For cell-specific (common) of jumped variable information, all UE in repeat sent signal Shi, heavy biography signal by with of resources according to public of jumped variable pattern (hopping pattern) for frequency domain Shang of jumped variable; for UE-specific of jumped variable information, all user in repeat sent signal Shi, heavy biography signal by with of resources according to user dedicated of jumped variable pattern for frequency domain Shang of jumped variable.

In another embodiment, for D2D communication Mode l send the end user devices, when the data is sent in D2D, signals retransmission using resources and positional relationship between the resources used by the initial send PUSCH hopping scheme in an existing standard can be used (or hopping type), Typel PUSCH Type2 PUSCH hopping and hopping.

Specifically, Typel PUSCH hopping type, according to eNB for D2D traffic sent by downward control information (DCI, Downlink Control Information) 1 bit or 2 bit jump information

A ½ j ^ value and size of system bandwidth, or according to eNB for D2D traffic sent by DCI in 1 bit or 2 bit jump information nULas well as preconfigured pool size for the D2D communications, sends the end user devices for frequency hopping jump offset (hopping offset)
2, "or LN^T^2 4" one of the three values. Define n ^ n is different from the existing standard OT (the honeycomb PUSCH hopping PUSCH resources when the user sends uplink data block), SCH'DW <~ D2D D2D user communication device D2D PUSCH resource when the number of blocks of data, this value can be configured in advance the size of the pool of resources.

Among them, the eNB in the allocation of resources to the sending end user devices, can be sent via signal indicates the end user devices retransmission or repetitive jumps that send data type. Sends the end user devices the jumping type can also be sent to the receiving end user devices, for example by scheduling (SA, Scheduling Assignment) information.

When Type2 PUSCH hopping mode is used, subsequent retransmission was sent by the initial use of the resources expended resources, as well as predefined frequency hopping scheme (cell-specific or common) joint decisions. At this point ID for cell ID, or D2D Radio ID information. Dang used similar Typel PUSCH hopping way Shi, sent end user equipment follow-up heavy biography by with of resources is from by eNB to sent end user equipment sent of scheduling information (scheduling grant) in the get of; received end user equipment in informed sent end user equipment sent of SA information Hou, from SA information in the Gets the sent end user equipment sent heavy biography data by with of resources.

In another embodiment, for D2D communications used in Mode 2 of the sending end user devices, sending

D2D data, used for signal retransmission resources and positional relationship between the resources used by the initial send Type2 PUSCH hopping in an existing standard can be used. This embodiment, resources used in subsequent retransmission is sent by the initial resources used from the predefined set of frequency hopping pattern and randomly selected a frequency hopping pattern choice. Among them, the initial sending resources and choice of hopping pattern can be indicated in the SA message. In addition, the resources used in subsequent retransmission is sent by the initial resources used frequency hopping pattern, as well as user (UE-specific frequency hopping pattern) jointly decided. Among them, the initial sending resources and decided to UE-specific ID UE-specific jumping programme information can be indicated in the SA message.

Figure 2 of this signal sends embodiment of the invention is an example diagram, as shown in Figure 2, the initial signal of the selected resources for #1 after the retransmission of the signal can be sent according to the initial signal of resources as well as frequency hopping pattern for resource selection.

In this embodiment, for receiving end user devices, can be informed in advance of the frequency hopping pattern. According to the frequency hopping pattern may determine retransmit signals resources, which reduces the complexity of blind detection received end user devices.

Specifically, the first user's device can be sent to the second user equipment used to determine the retransmission indicates information resource, the second user equipment according to the instructions for receiving retransmission of the signal. Among them, indicates that the information can be used to determine the retransmission resources including: initial resource location information sent the signal, and sends the signal of the identifying information for the user equipment and the signal retransmission of the frame information. But the invention is not limited to this, for example, can be defined in advance information, by the receiving end user devices blind detection based on predefined information.

In one embodiment, D2D when users first and second user equipment traffic, this indicates that the information can be used to determine the retransmission resources hosted on the SA.

Specifically, the D2D communications, D2D SA will be sent before the data is sent, SA content contains D2D data scheduling information. SA may include: indicates the original D2D data sent using the resource location, send information about end user devices and frame information from D2D data multiple times. By designing a principles of sender and receiver are known to the public (that is, frequency hopping scheme), set up after the initial resources used by the sending and

Continue to send the relationships between resources. Through demodulation SA, D2D receiving end user devices to know clearly the first time data D2D resource location, then according to the formula (1) or (2) can derive subsequent retransmissions/reversal of resource location.

In another embodiment, D2D when users first and second user equipment when found, which indicates that the information can be used to determine the retransmission resources hosted on found leading (discovery preamble).

Specifically, different from D2D communications, D2D found there is no SA sends to indicate D2D found resource position of the message. But D2D found in the D2D found messages before they are sent, could send discovery preamble; Discovery preamble auxiliary angle army discovery messages. Army discovery preamble by angle, you can find out the sender ID information of user equipment, this information can be used to host the discovery message PUSCH UE-specific scrambling of information transmitted.

In the discovery of D2D, a discovery messages take up a fixed number m of PRB, when a configured resource pool contains m when PRB in the frequency domain, a total of N=M/m information resources unit. Formula (1) or (2) «(0 can be expressed on the retransmission frequency of starting RB position or a serial number that represents the unit of frequency-domain resources.

The embodiment of the above shows that, according to the initial signal of resources and determine retransmit signals of frequency hopping pattern resources can be as random as possible interference between the user equipment, can also try to reduce the complexity of receiving blind detection of end user devices.

Implementing example 2

Embodiments of the present invention provides a method for signal retransmission, used as a signal in the receiving end of a second user equipment, and implement example 1 the same content will not repeat them. Figure 3 is an embodiment of the present invention a flow diagram of the signal retransmission method, as shown in Figure 3, which includes:

301, second user equipment receives the first retransmission of user equipment signal which retransmit the signal of the resources the signal sent by the first user equipment according to the initial resources and determined frequency hopping pattern.

As shown in Figure 3 which methods can include:

302, second user equipment receives the signals receiving combined treatment. On how to merge any existing technology-related approaches you can take, it will not go into here.

In this embodiment, the second user equipment receives the first user-device used to determine the retransmission indicates information resource, the second user equipment according to the instructions to receive the retransmission of the signal. Among them, indicates that the information can be used to determine the retransmission resources including: initial resource location information sent the signal, and sending the

Identifying information for the user equipment signal and the signal retransmission of the frame information. But the invention is not limited to, such as another user's device can also blind to receive the signal.

In one embodiment, D2D when users first and second user equipment traffic, indicates that the information can be used to determine the retransmission resources hosted in SA.

In another embodiment, D2D when users first and second user equipment finding, indicates that the information can be used to determine the retransmission resources hosted on the find lead information. Following the instructions described in the access and user equipment can be used for example, formula (1) or (2) of the programme, determine the resource location of the retransmission of the signal.

For example, the second user equipment in all possible discovery blind in a child frame preamble; Once properly detected, you can for example formulas (1) or (2) to obtain subsequent discovery message retransmission frequency domain location/duplicate, then receive a combined (for example soft-merge). Among them, the formula (1) or (2) in the ID information can be obtained by the discovery preamble.

In another embodiment, D2D when users first and second user equipment discovered, there is no discovery preamble 0 second user equipment can be found in all possible initial send D2D blind detection message frame, by testing the reference signal demodulation (DMRS, Demodulation Reference Signal) sequences to determine whether to send a message, D2D found messages sent and determine the initial location in frequency domain, namely formula (1) or (2) (0). Based on this assumption, demodulation repeat/repeat for subsequent D2D discovery messages, and receive a combined until correctly demodulated D2D discovery messages. Among them, the formula (1) or (2) ID information in D2D can be sent by the initial discovery message sequence of DMRS available, may also be predefined ID information (for example, you can define multiple ID in advance).

The embodiment of the above shows that, according to the initial signal of resources and determine retransmit signals of frequency hopping pattern resources can be as random as possible interference between the user equipment, can also try to reduce the complexity of receiving blind detection of end user devices.

Implementation of example 3

Embodiments of the present invention to provide a device for signal retransmission, distribution in the first user equipment. The embodiment of the embodiment of the invention corresponds to 1 's signal retransmission method, the same content will not repeat them.

Figure 4 is an embodiment of the present invention signal retransmission of device a diagram, as shown in Figure 4, 400 signal retransmission devices include: resource element signal sending unit 401 and 402. Among them, resources, unit 401, according to the initial signal of resources as well as determine retransmit the signal frequency hopping pattern resource; signal unit 402 resources identified according to the resources unit 401, retransmit the signal to the second user equipment.

In this embodiment, D2D communication for different modes of the first user equipment, the frequency hopping pattern is different; or D2D found for different types of user devices, as described in, the frequency hopping pattern is different. Frequency hopping patterns can provide community-specific, and also can be a users device-specific.

In a implementation way in the, as Figure 4 by shows, signal heavy biography device 400 also can including: configuration received unit 403, in by said first user equipment and by said second user equipment for D2D communications of situation Xia, received base station sent of for configuration initial sent signal of resources of configuration information; or in by said first user equipment and by said second user equipment for D2D found of situation Xia, received base station half static to or dynamic to sent of for configuration initial sent signal of resources of configuration information.

In another embodiment, resources, unit 401, can also be used in the first user device D2D communications and the second user equipment cases, randomly chosen initial signal resources or first user device D2D found with the second user equipment cases, randomly selected from a predefined resource pools resources of the initial signal.

In another embodiment, the frequency hopping pattern may be as PUSCH hopping type information.

In another embodiment, as shown in Figure 4, 400 can also signal retransmission devices include: sending information, unit 404, to send the second user equipment used to determine the retransmission indicates information resources, making the second user equipment according to the instructions for receiving retransmission of the signal.

, Which indicates that the information can be used to determine the retransmission resources including: resource location information of the initial signal, and sends the signal of user identifying information about the device, as well as the retransmission of the signals of the frame information. But the invention is not limited to this.

In this implementation cases in the, in by said first user equipment and by said second user equipment for D2D communications Shi, by said for determine heavy biography resources of indicates information can was hosted in scheduling distribution information in the; or in by said first user equipment and by said second user equipment for D2D found Shi, by said for determine heavy biography resources of indicates information can was hosted in found leading information in the.

Embodiments of the present invention to provide a user's device, including signal retransmission devices as mentioned above 400.

Figure 5 is the embodiment of the invention a schematic diagram of the user configuration of the equipment, 500. As shown in Figure 5, the 500 user equipment can include memory and CPU 100 140; 140 coupled to the CPU memory 100. Worth noting is that the figure was exemplary; can also use other types of structures, to supplement or replace the structure to achieve telecommunications or other features.

In one embodiment, signal retransmission apparatus 400 features can be integrated into the CPU in the 100. Among them, the central processor 100 can be configured in order to achieve implementation of signal retransmission method described in example 1.

In another embodiment, signals retransmission devices CPU 100 and 400 can be configured, for example 400 signal retransmission devices can be configured and connected to the central processor 100 chips, signal retransmission through central control unit 400 features.

As shown in Figure 5, the user equipment 500 can also include: communications module enter unit 110, 120, 130, 160, the monitor audio processing unit power 170. Worthy of note is the user device 500 does not have to include all the parts as shown in Figure 5, in addition, 500 user equipment can also include components not shown in Figure 5, you can reference existing technology.

As shown in Figure 5, the CPU 100 control is sometimes referred to as a controller or action, you can include a microprocessor or other processors and/or logical device, the CPU 100 receives input and control over parts of a user device 500 operations.

Among them, 140 memory, such as a cache, Flash, hard drives, removable media, nonvolatile memory, non-volatile memory or other suitable devices to one or more species. Can store information associated with the failure, and also stores information about the program. And central processor 100 140 stores the memory the program executable, to achieve information storage or processing. Other components functionality similar to existing, will not go into here. User equipment 500 components through dedicated hardware, firmware, software, or combinations thereof, to achieve, not deviated from the scope of the invention.

The embodiment of the above shows that, according to the initial signal of resources and determine retransmit signals of frequency hopping pattern resources can be as random as possible interference between the user equipment, can also try to reduce the complexity of receiving blind detection of end user devices.

Implementation 4

Embodiments of the present invention to provide a device for signal retransmission, in the configuration to a second user equipment. The embodiment of the embodiment of the invention corresponds to 2 signal retransmission method, the same content will not repeat them.

Figure 6 is an embodiment of the present invention signal retransmission of device a diagram, as shown in Figure 6, 600 signal retransmission devices include: signal receiving unit 601, receives the first retransmission of user equipment signal which retransmit the signal of a resource sent by the first user equipment according to the initial signal of the resources as well as frequency hopping pattern identified. As shown in Figure 6, the signal-retransmission unit 600 can also include: signal processing unit 602, received the signals receiving combined treatment.

In an embodiment, as shown in Figure 6, the signal-retransmission unit 600 can also include information received 603, receiving the first user-device used to determine the retransmission indicates information resources, making the signal receiving unit according to the instructions to receive the retransmission of the signal.

Which indicates that the information used to determine the retransmission resources including: resource location information of the initial signal, and sends the signal of user identifying information about the device, as well as the retransmission of the signals of the frame information. But the invention is not limited to this.

In this implementation cases in the, in by said first user equipment and by said second user equipment for D2D communications Shi, by said for determine heavy biography resources of indicates information was hosted in scheduling distribution information in the; or in by said first user equipment and by said second user equipment for D2D found Shi, by said for determine heavy biography resources of indicates information was hosted in found leading information in the.

In another embodiment, the signal receiving unit 601 sequence by detecting the DMRS to access resources where the signal location information, as well as according to the position of information receiving retransmission of the signal.

Embodiments of the present invention to provide a user's device, including signal retransmission devices as mentioned above 600; On the composition of the user's device can refer to figure 5.

The embodiment of the above shows that, according to the initial signal of resources and determine retransmit signals of frequency hopping pattern resources can be as random as possible interference between the user equipment, can also try to reduce the complexity of receiving blind detection of end user devices.

Implementation of example 5

Embodiments of the present invention to provide a communication system, same content as the embodiment of 1 to 4 will not repeat them.

Figure 7 is the embodiment of the invention of communication system of a sketch, as shown in Figure 7, the communications system 700 includes: the first user equipment devices 702 701 and the second user. Among them, the first 701 user equipment according to the initial signal of the resource and determine retransmit the signal frequency hopping pattern resources, and identify the resources to retransmit the signal; the second user equipment, 702 receiving the first user equipment 701 retransmission of the signal.

In this embodiment, the first user's device 701 and 702 of the second user equipment for D2D communications or D2D finds, but the invention is not limited to this.

In a implementation way in the, as Figure 7 by shows, by said communications system 700 also can including: base station 703, in by said first user equipment 701 and by said second user equipment 702 for D2D communications of situation Xia, for by said first user equipment 701 configuration initial sent signal of resources; or in by said first user equipment 701 and by said second user equipment 702 for D2D found of situation Xia, half static to or dynamic to for by said first user equipment 701 configuration initial sent signal of resources.

Among them, the frequency hopping pattern may be user equipment (UE-specific), or it can be community focused (cell-specific) or in the common (common).

The embodiment of the invention also provides a computer-readable program, when when you execute the program on a user's device, the program allows computers on the user device implementation in example 1 or 2 signal retransmission method described.

Embodiments of the present invention to provide a storage medium of storing computer-readable program, wherein the computer readable program allows computer users device implementation cases 1 or 2 signal retransmission method described.

More than the invention of devices and methods that can be implemented by hardware, or hardware with software. This invention relates to such computer-readable program, when the program being executed by logical parts, enabling the logical components of the device or component referred to above, or so the logic part various methods or procedures described above. The invention also relates to a stored procedure in the storage media, such as hard disks, disk, CD, DVD, Flash memory, and so on.

For drawings in the description of function box in the of a or multiple and/or function box of a or multiple combination, can achieved for for implementation this application by description function of General processor, and digital signal processing device (DSP), and dedicated IC (AS), and site can programming door array column (FPGA) or other can programming logic devices, and Division door or transistor logic devices, and Division hardware component or its any appropriate combination. In the box for a description of the drawings feature one or more function and/or combination of one or more of the boxes, can also be implemented as a combination of computing devices, for example, the combination of DSP and microprocessor, multiple microprocessors, DSP and communication combined with one or more microprocessors or any other such configuration.

Above, combined with specific embodiments of the invention are described, but there are skilled in the art should be clear, these descriptions are examples, not limits on the scope of protection of the invention. Technicians in this field according to the invention of the spirit and principles of the present invention to make variations and modifications, these variants and modified within the scope of the invention.

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Wood and Wo ίΙ¾

1, a device for signal retransmission, distribution in the first user device, wherein the device comprises:

Resources unit, according to the initial signal of resources as well as determine retransmit the signal frequency hopping pattern resource;

Signal unit, resources to the second user equipment according to re-transmit the signal.

2, according to claim 1 wherein the device, in which the D2D communication for different modes of the first user equipment, the frequency hopping pattern is different; or D2D found for different types of user devices, as described in, the frequency hopping pattern is different.

3, according to the devices referred to in claim 1, in which the frequency hopping patterns and information related to one or more of the following: resource location information of the initial signal, and sends the signal of user identifying information about the device, as well as the retransmission of the signals of the frame information.

4, according to claim 1 wherein the device, in which the frequency hopping pattern is a community of private or public.

5, according to claim 4 wherein the device, the device also includes:

Configuration received unit, in by said first user equipment and by said second user equipment for D2D communications of situation Xia, received base station sent of for configuration initial sent signal of resources of configuration information; or in by said first user equipment and by said second user equipment for D2D found of situation Xia, received base station half static to or dynamic to sent of for configuration initial sent signal of resources of configuration information.

6, according to claim 1 wherein the device, in which the frequency hopping pattern is a user equipment. 7, according to claim 6 device, in which the resources unit is also used in the first user device D2D communications and the second user equipment cases, randomly chosen initial signal resources; Or the first user device D2D found with the second user equipment cases, randomly selected from a predefined resource pools resources of the initial signal.

8, according to claim 1 wherein the device, in which the D2D communications for mode 1 the first user devices, frequency hopping pattern described by PUSCH hopping type 1, or PUSCH hopping type 2 and the frequency-hopping pattern is a community of private or public;

D2D communications for mode 2 the first user's device, wherein the frequency hopping pattern PUSCH jump type 2 the frequency hopping pattern is a user equipment.

9, according to claim 1 wherein the device, the device also includes:

Information unit, sent to the second user equipment used to determine the retransmission indicates information resources, making the second user equipment according to the instructions for receiving retransmission of the signal.

10, according to claim 8 wherein the device, which is used to determine the retransmission indicates information resources including: resource location information of the initial signal, and sends the signal of user identifying information about the device, as well as the retransmission of the signals of the frame information.

11, and according to right requirements 8 by said of device, which, in by said first user equipment and by said second user equipment for D2D communications Shi, by said for determine heavy biography resources of indicates information was hosted in scheduling distribution information in the; or in by said first user equipment and by said second user equipment for D2D found Shi, by said for determine heavy biography resources of indicates information was hosted in found leading information in the.

12, a device for signal retransmission, in the configuration to a second user equipment, the devices include:

Signal receiving unit receives the first retransmission of user equipment signal which retransmit the signal of a resource sent by the first user equipment according to the initial signal of the resources as well as frequency hopping pattern identified.

13, according to claim 12 wherein the device, the device also includes:

Information receiving unit receives the first user-device used to determine the retransmission indicates information resources, making the signal receiving unit according to the instructions to receive the retransmission of the signal.

14, according to the devices referred to in claim 13, which indicates that the information used to determine the retransmission resources including: resource location information of the initial signal, and sends the signal of user identifying information about the device, as well as the retransmission of the signals of the frame information.

15, and according to right requirements 13 by said of device, which, in by said first user equipment and by said second user equipment for D2D communications Shi, by said for determine heavy biography resources of indicates information was hosted in scheduling distribution information in the; or in by said first user equipment and by said second user equipment for D2D found Shi, by said for determine heavy biography resources of indicates information was hosted in found leading information in the.

16, according to claim 12 wherein the device, the signal receiving unit detection DMRS sequence to access resources where the signal's location information, and according to the position of information receiving retransmission of the signal.

17, according to claim 12 wherein the device, the device also includes:

Signal processing unit, received the signals receiving combined treatment.

18, a communication system, the communication system consists of:

First the user device, according to the initial signal of resources, as well as determine retransmit the signal frequency hopping pattern resources, and identify the resources to retransmit the signal;

Second user equipment receives the first retransmission of the signal of user equipment.

19, according to the communication system referred to in claim 18, wherein, the user, as described in the device D2D communications and the second user equipment or D2D found

20, and according to right requirements 18 by said of communications system, which, by said communications system also including: base station, in by said first user equipment and by said second user equipment for D2D communications of situation Xia, for by said first user equipment configuration initial sent signal of resources; or in by said first user equipment and by said second user equipment for D2D found of situation Xia, half static to or dynamic to for by said first user equipment configuration initial sent signal of resources.