CN105101429A

CN105101429A - D2D (Device-to-Device) resource allocation method, network equipment and user equipment

Info

Publication number: CN105101429A
Application number: CN201410223414.0A
Authority: CN
Inventors: 黄双红; 吴栓栓; 袁弋非; 王文焕
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2014-05-09
Filing date: 2014-05-23
Publication date: 2015-11-25
Also published as: WO2015176517A1

Abstract

The present invention discloses a D2D resource allocation method, a D2D resource processing method, network equipment and user equipment. The D2D resource allocation method comprises the steps of: determining D2D resource allocation parameters by a network side; and indicating the partial or total D2D resource allocation parameters to user equipment in a manner of indication signaling and/or signals, wherein the D2D resource allocation parameters are used for obtaining D2D resources by the user equipment.

Description

Device-to-device resource configuration method, network device and user equipment

Technical Field

The present invention relates to a resource allocation technique in the field of wireless communication, and in particular, to a Device-to-Device (D2D) resource allocation method, a Device-to-Device resource processing method, a network Device, and a user equipment.

Background

In the process of implementing the technical solution of the embodiment of the present application, the inventor of the present application finds at least the following technical problems in the related art:

in a cellular communication system, when there is service transmission between two User Equipments (UEs), for example, service data from UE1 to UE2 is transmitted to a base station of a cell in which UE1 is located over an air interface, where the base station is denoted by base station, or referred to as NodeB or evolved NodeB, and the base station transmits the user data to a base station of a cell in which UE2 is located over a core network, and then transmits the service data to UE2 over the air interface. Similar processing flows are adopted for traffic data transmission from UE2 to UE 1. As shown in fig. 1a, when the UE1 and the UE2 are located in the same cell, although both UEs are covered by the cell of the same base station, data transmission still needs to be relayed through the core network, and one data transmission still consumes two radio spectrum resources.

It follows that the above-described cellular communication method is clearly not optimal if the UE1 and the UE2 are located in the same cell and are close together. In fact, with diversification of mobile communication services, for example, popularization of applications such as social networks, electronic payments, etc. in wireless communication systems, service transmission demands among close-range users are increasing. Therefore, the communication mode of D2D is receiving increasingly wide attention. As shown in fig. 1b, D2D indicates that the service data is directly transmitted to the target UE over an air interface by the source UE without being forwarded by the base station and the core network, which may also be referred to as proximity service (ProSe). For users of short-range communication, D2D not only saves wireless spectrum resources, but also reduces data transmission pressure of the core network.

D2D technology generally includes D2D discovery technology and D2D communication technology, the D2D discovery technology enabling mutual discovery between D2D communicating User Equipments (UEs), referred to herein as D2D device discovery, or D2D discovery, for mutual discovery between D2D communicating devices; the D2D communication technology may enable some or all of the communication data between D2D user devices to be communicated directly without passing through the network infrastructure. The D2D ue needs to know the available resources in the system resources for D2D signal transmission in order to send or receive D2D signals on the available resources, and avoid resource collision with the ues in the cellular system, which affects the performance of the cellular system. In order to make the D2DUE accurately know the resources for D2D signal transmission and/or reception without affecting the cellular system, it is necessary to configure the D2D resources reasonably and efficiently and to set a certain configuration indication scheme. However, no effective solution exists in the related art.

Disclosure of Invention

In view of this, embodiments of the present invention are intended to provide a resource allocation method for D2D, a resource processing method for D2D, a network device, and a user equipment, which at least implement reasonable and efficient allocation of D2D resources, so that D2DUE can accurately know the resources for transmitting and receiving D2D signals, and does not affect a cellular system.

The technical scheme of the embodiment of the invention is realized as follows:

a device-to-device resource configuration method, the method comprising:

the network side determines the resource configuration parameters of the device-to-device D2D;

indicating part or all of the D2D resource configuration parameters to user equipment through indication signaling and/or signaling; the D2D resource configuration parameters are used for the user equipment to obtain D2D resources.

Preferably, the D2D resources include: wireless resources that D2D user equipment can use to transmit or receive D2D signals;

the content of the D2D resource includes one or more of the following:

resources corresponding to the first resource allocation mode and/or resources corresponding to the second resource allocation mode;

and the user equipment dedicated resources corresponding to the first resource allocation mode and/or the second resource allocation mode.

Preferably, the method for determining the D2D resource configuration parameter by the network side includes one or more of the following methods:

to describe the parameter expression of the D2D resource;

expressing the parameter set describing the D2D resource and the index combination corresponding to the parameter set;

so as to map the parameter expression mode and/or the parameter set and the index combination expression mode through a formula.

Preferably, the D2D resource configuration parameters include: configuration parameter content corresponding to D2D resources;

the D2D resource configuration parameter content comprises one or more of the following:

D2D resource allocation parameters including configuration parameters corresponding to the first resource allocation mode and/or configuration parameters corresponding to the second resource allocation mode;

and the configuration parameters of the special resources of the user equipment corresponding to the first resource allocation mode and/or the second resource allocation mode.

Preferably, the D2D resource configuration parameters include one or more of the following parameters:

a period of D2D resources;

frequency domain resource bandwidth of D2D resources;

a radio frame number (SFN) offset corresponding to the starting position of the D2D resource;

the number of D2D subframes in the D2D resource;

radio frame positions corresponding to the D2D subframes in the D2D resources;

D2D subframe locations within the D2D resource;

a bit bitmap for indicating the position of the D2D subframe;

number of resource groups within D2D resource;

the D2D resource group contains the radio frame number;

a bit bitmap within the D2D resource group indicating D2D subframe positions;

D2D resource group offset, resource group spacing;

a hopping pattern of user equipment-specific resources;

or, the configuration parameters of the resource region further include an index corresponding to a combination of one or more of the above parameters.

Preferably, the configuration parameters corresponding to the first resource allocation manner and the configuration parameters corresponding to the second resource allocation manner are independent from each other, or some of the parameters are the same.

Preferably, the configuration parameters of the user equipment dedicated resources corresponding to the first resource allocation manner and/or the second resource allocation manner include one or more of the following parameters:

the initial position or all positions of the special resources of the user equipment corresponding to the first resource allocation mode and/or the second resource allocation mode;

a hopping mode of the user equipment dedicated resources corresponding to the first resource allocation mode and/or the second resource allocation mode;

or, the configuration parameter of the ue-specific resource corresponding to the first resource allocation manner and/or the second resource allocation manner further includes an index corresponding to a combination of one or more of the above parameters.

Preferably, the expression manner adopted by the initial position of the user equipment dedicated resource corresponding to the first resource allocation manner and/or the second resource allocation manner includes any one of the following manners:

respectively indicating the time domain and frequency domain positions of the initial positions of the user equipment dedicated resources of the first resource allocation mode and/or the second resource allocation mode by adopting the time domain parameters and the frequency domain parameters;

and adopting a parameter to indicate the index number of the initial position of the user equipment dedicated resource in the D2D resource, wherein the index number has a mapping relation corresponding to the time domain and frequency domain positions of the user equipment dedicated resource of the first resource allocation mode and/or the second resource allocation mode in the D2D resource.

Preferably, the signaling and/or signaling indication includes one or more of the following:

indicating the D2D resource configuration parameter by system information or RRC common signaling;

and sending down by using an RRC dedicated signaling to indicate the configuration parameters of the dedicated resources of the user equipment corresponding to the first resource allocation mode and/or the second resource allocation mode.

Preferably, the indication is performed by means of indication signaling and/or signals, and further includes an indication of the D2D resource configuration parameters used between different adjacent cells;

the indication for the D2D resource configuration parameter between the adjacent different cells comprises any one of the following:

for a neighboring cell of a synchronous network, the neighboring cell configuring D2D resources according to the same parameters, determining D2D resources of a second cell by D2D resource configuration parameters of a first cell, so that the user equipment receives D2D signals of the second cell according to the D2D resources of the second cell;

for a neighboring cell of a non-synchronized network, the neighboring cell configuring D2D resources with the same parameters, determining D2D resources of a second cell by an indication of the second cell in combination with the resource configuration parameters of the first cell and a timing reference of the second cell, such that the user equipment receives D2D signals of the second cell in accordance with the D2D resources of the second cell;

the first cell and the second cell are adjacent cells to each other, wherein the first cell is a cell where the user equipment resides, and the second cell is an adjacent cell of the first cell.

Preferably, the indication manner of the D2D resource configuration parameter between the adjacent different cells includes any one of the following:

a base station to which a second cell in the adjacent cells belongs sends a cell identification ID and a radio frame number corresponding to the second cell to a base station to which a first cell belongs, and the base station to which the first cell belongs sends the cell identification ID and the radio frame number to user equipment in the first cell; and forwarding a radio frame number through the user equipment in the second cell, wherein the user equipment in the first cell receives the forwarded radio frame number.

A network device, the network device comprising:

a first determining unit, configured to determine a device-to-device D2D resource configuration parameter;

an indication sending unit, configured to indicate part or all of the D2D resource configuration parameters to a user equipment through indication signaling and/or signaling; the D2D resource configuration parameters are used for the user equipment to obtain D2D resources.

the content of the D2D resource includes one or more of the following:

resources corresponding to the first resource allocation mode and/or the second resource allocation mode;

to describe the parameter expression of the D2D resource;

a period of D2D resources;

frequency domain resource bandwidth of D2D resources;

the number of D2D subframes in the D2D resource;

radio frame positions corresponding to the D2D subframes in the D2D resources;

D2D subframe locations within the D2D resource;

a bit bitmap for indicating the position of the D2D subframe;

number of resource groups within D2D resource;

the D2D resource group contains the radio frame number;

a bit bitmap within the D2D resource group indicating D2D subframe positions;

D2D resource group offset, resource group spacing;

a hopping pattern of user equipment-specific resources;

and adopting a parameter to indicate the index number of the initial position of the user equipment dedicated resource in the time domain and the frequency domain in the D2D resource, wherein the index number has a mapping relation with the position of the user equipment dedicated resource in the first resource allocation mode and/or the second resource allocation mode in the D2D resource.

Preferably, the indication sending unit is further configured to indicate in a signaling and/or signaling indicating manner, where the signaling and/or signaling indicating manner includes one or more of the following manners:

Preferably, the indication sending unit is further configured to indicate in a signaling and/or signaling manner, and further includes an indication for the D2D resource configuration parameter between different adjacent cells;

A device-to-device resource handling method, the method comprising:

the user equipment obtains D2D resource configuration parameters by receiving the indication of the network side;

and the user equipment determines the D2D resource according to the D2D resource configuration parameter.

A user equipment, the user equipment comprising:

the acquisition unit is used for acquiring the D2D resource configuration parameters by receiving the indication of the network side;

a second determining unit, configured to determine a D2D resource according to the D2D resource configuration parameter.

The resource allocation method of the embodiment of the invention comprises the following steps: the network side determines the resource configuration parameters of the device-to-device D2D; indicating part or all of the D2D resource configuration parameters to user equipment through indication signaling and/or signaling; the D2D resource configuration parameters are used for the user equipment to obtain D2D resources.

By adopting the embodiment of the invention, part or all of the D2D resource configuration parameters can be indicated to the user equipment through an indication signaling and/or a signal mode; the D2D resource configuration parameter is used for the user equipment to obtain the D2D resource, so that the user equipment can accurately know the D2D resource for D2D signal transmission and reception without affecting the cellular system.

Drawings

FIGS. 1a-1b are schematic diagrams of cellular communication and D2D communication of UEs located in the same base station cell in the related art;

fig. 2 is a diagram illustrating a radio resource structure in the related art;

FIG. 3 is a diagram of a cellular network deployment in the related art;

FIG. 4 is a flow chart of a method principle implementation of an embodiment of the present invention;

FIG. 5 is a schematic block diagram of a network device according to an embodiment of the present invention;

FIG. 6 is a flow chart of a method principle implementation of an embodiment of the present invention;

FIG. 7 is a schematic block diagram of a UE according to an embodiment of the present invention;

fig. 8 is an example of radio frame location configuration within a D2D resource period according to a first embodiment of the present invention;

fig. 9 is an example of a discovery resource region parameter configuration according to a first embodiment of the present invention;

FIG. 10 is an example of a mapping relationship of user equipment specific D2D resource locations according to a second embodiment of the present invention;

FIG. 11 is an example of a method for mapping resource locations of user equipment-specific D2D according to a second embodiment of the present invention;

fig. 12 is an example of indicating resource configuration parameters between cells in an interactive manner in a third embodiment of the present invention;

fig. 13 is an example of indicating resource configuration parameters between cells by a UE forwarding method in the third embodiment of the present invention.

Detailed Description

The following describes the embodiments in further detail with reference to the accompanying drawings.

The embodiment of the invention mainly comprises the following contents:

as shown in fig. 4, the resource allocation method of D2D in the embodiment of the present invention includes:

step 101, determining D2D resource configuration parameters by a network side;

102, indicating part or all of the D2D resource configuration parameters to user equipment through indication signaling and/or signaling; the D2D resource configuration parameters are used for the user equipment to obtain D2D resources.

In a preferred implementation manner of the embodiment of the present invention, the D2D resource includes: wireless resources that D2D user equipment can use to transmit or receive D2D signals;

the content of the D2D resource includes one or more of the following:

For example, the D2D resource refers to a radio resource that the D2D user equipment can use to transmit or receive a D2D discovery signal, and includes part or all of the following:

in the case of applying D2D discovery techniques, a D2D resource region, comprising: a resource region of the first discovery Type1 and/or a resource region of the second discovery Type 2B;

a second discovery Type 2B.

Under the condition of applying the D2D communication technology, a D2D resource region comprises a resource region of a first communication type Mode1 and/or a resource region of a second communication type Mode 2;

a resource dedicated to the user equipment of the first communication type Mode 1.

It should be noted that, for the D2D discovery technique, including two types, i.e., the first discovery Type1 and the second discovery Type2B, the D2DUE of the first discovery Type1 and the second discovery Type2B will be described later, and details thereof will not be repeated here.

Here, the Type1 refers to Type1 Type discovery in the standard discussion of third generation partnership project (3GPP, 3rd generation partnership project)/long term evolution Advanced (LTE-a, LTE-Advanced) technology with respect to D2D, the discovery resource region also referred to as a resource pool in the standard discussion of D2D. The discovery resource region of Type1 can also be referred to as a resource pool of Type1 or a Type1 discovery resource region or a Type1 resource pool. The user equipment of Type1 selects resources in the discovery resource region of Type1 for transmitting discovery signals, which may be randomly selected.

Here, the Type2B refers to Type2B Type discovery in the standard discussion of third generation partnership project (3GPP, 3rd generation partnership project)/long term evolution Advanced (LTE-a, LTE-Advanced) technology with respect to D2D, the discovery resource region also referred to as a resource pool in the standard discussion of D2D. The discovery resource region of Type2B may also be referred to as a resource pool of Type2B or a Type2B discovery resource region or a Type2B resource pool. The user equipment of Type2B transmits a discovery signal in the discovery resource region of Type2B, and the base station designates a dedicated resource for transmitting a discovery signal for each user equipment.

Similarly, the D2D communication technology also includes two types, i.e., a first communication type Mode1 and a second communication type Mode 2. For Mode1, the base station assigns a dedicated resource for each user equipment to transmit communication signals, and for Mode2, the user equipment selects a resource from the resource pool for transmitting communication signals.

In a preferred implementation manner of the embodiment of the present invention, the manner in which the network side determines the D2D resource configuration parameter includes one or more of the following manners:

to describe the parameter expression of the D2D resource;

For example, the method for determining the D2D resource configuration parameter by the network side includes one or more of the following methods:

a manner expressed in radio resource parameters;

a mode expressed by a radio resource parameter set and an index combination corresponding to the parameter set;

the partial radio resource parameters are mapped by a formula.

In a preferred implementation manner of the embodiment of the present invention, the D2D resource configuration parameters include: configuration parameter content corresponding to D2D resources;

For example, the D2D resource configuration parameter is a configuration parameter corresponding to a D2D discovery resource, and the D2D resource configuration parameter content includes one or more of the following contents:

in the case of applying the D2D discovery technology, the configuration parameters of the resource region include the configuration parameters of the discovery resource region of Type1 and/or the configuration parameters of the discovery resource region of Type 2B;

configuration parameters of discovery resources dedicated to the user equipment of Type 2B.

Under the condition of applying the D2D communication technology, the configuration parameters of the resource region comprise the configuration parameters of the resource region of the Mode1 and/or the configuration parameters of the resource region of the Mode 2;

configuration parameters of the user equipment-specific resources of Mode 1.

In a preferred implementation manner of the embodiment of the present invention, the D2D resource configuration parameters include one or more of the following parameters:

a period of D2D resources;

frequency domain resource bandwidth of D2D resources;

the number of D2D subframes in the D2D resource;

radio frame positions corresponding to the D2D subframes in the D2D resources;

D2D subframe locations within the D2D resource;

a bit bitmap for indicating the position of the D2D subframe;

number of resource groups within D2D resource;

the D2D resource group contains the radio frame number;

a bit bitmap within the D2D resource group indicating D2D subframe positions;

D2D resource group offset, resource group spacing;

a hopping pattern of user equipment-specific resources;

For example, the configuration parameters for the discovery resource region include some or all of the following parameters:

the resource allocation method comprises the steps of discovering the period of a resource region, discovering the frequency domain resource bandwidth of the resource region, discovering the radio frame number (SFN) offset corresponding to the initial position of the resource region, discovering the number of subframes in the resource region, discovering the radio frame position corresponding to the subframes in the resource region, discovering the positions of the subframes in the resource region, indicating the bit bitmap of the subframe position, discovering the number of resource groups, discovering the number of the radio frames contained in the resource group, discovering the offset of the resource group, discovering the interval of the resource group and the hopping mode of special resources of user equipment;

or an index corresponding to the above parameter combination.

In a preferred implementation manner of the embodiment of the present invention, the configuration parameters corresponding to the first resource allocation manner are independent from the configuration parameters corresponding to the second resource allocation manner, or some of the parameters are the same.

For example, in the case of applying the D2D discovery technology, the configuration parameters of the discovery resource region of Type1 and the configuration parameters of the discovery resource region of Type2B are independent from each other, or some of the parameters are the same.

In the case of applying the D2D communication technology, the configuration parameters of the resource region of the Mode1 and the configuration parameters of the resource region of the Mode2 are independent of each other, or some of the parameters are the same.

In a preferred implementation manner of the embodiment of the present invention, the configuration parameters of the user equipment dedicated resources corresponding to the first resource allocation manner and/or the second resource allocation manner include one or more of the following parameters:

For example, the configuration parameters of the ue-specific discovery resource of Type2B include some or all of the following parameters:

the initial position or all positions of the special discovery resources of the user equipment of Type2B and the hopping mode of the special resources of the user equipment;

or an index corresponding to the above parameter combination.

In a preferred implementation manner of the embodiment of the present invention, an expression manner adopted by an initial position of a user equipment dedicated resource corresponding to the first resource allocation manner and/or the second resource allocation manner includes any one of the following manners:

and adopting a parameter to indicate the index number of the initial position of the user equipment dedicated resource in the D2D resource, wherein the index number has a mapping relation corresponding to the time domain and the frequency domain position of the user equipment dedicated discovery resource of the first resource allocation mode and/or the second resource allocation mode in the D2D resource.

For example, the expression of the initial location of the user equipment-specific discovery resource of Type2B includes one of the following ways:

respectively indicating the time domain position, such as a radio frame number, a subframe number and a frequency domain position, such as a resource block position, of the initial position of the special discovery resource of the user equipment of the Type2B by adopting the time domain parameter and the frequency domain parameter;

and adopting a parameter to indicate the index number of the initial position of the user equipment dedicated discovery resource of the Type2B in the discovery resource area, wherein the index number has a mapping relation with the position of the user equipment dedicated discovery resource of the Type2B in the discovery resource area.

In a preferred implementation manner of the embodiment of the present invention, the indicating by means of indicating signaling and/or a signal includes one or more of the following manners:

For example, the signaling via configuration includes the following steps:

indicating the configuration parameters of the discovery resource region through system information or RRC common signaling;

the configuration parameters of the user equipment specific discovery resources of the second discovery type are indicated by RRC dedicated signaling.

In a preferred implementation manner of the embodiment of the present invention, the indicating is performed in a manner of indicating signaling and/or signals, and further includes an indication used for the D2D resource configuration parameter between different adjacent cells;

For example, the indication for discovering resource configuration between adjacent different cells includes:

for the adjacent cells of the synchronous network, the user equipment directly determines the discovery resource areas of the adjacent cells according to the discovery resource configuration information of the cell, and receives discovery signals of the adjacent cells in the discovery resource areas.

For the adjacent cells of the asynchronous network, the user equipment determines the discovery resource areas of the adjacent cells according to the indication of the adjacent cells and the discovery resource configuration information of the cell, and receives discovery signals of the adjacent cells in the discovery resource areas.

In a preferred implementation manner of the embodiment of the present invention, the manner of indicating the D2D resource configuration parameter between the adjacent different cells includes any one of the following:

For example, the indication of the neighboring cell includes one of:

the base station of the adjacent cell sends the information of the cell ID and the radio frame number to the base station of the cell through interaction, and indicates the configuration parameters of the discovery resource region of the first discovery type or/and the configuration parameters of the discovery resource region of the second discovery type for the user equipment in the cell;

and forwarding the radio frame number to the user equipment in the adjacent region through the edge UE, and indicating the configuration parameters of the discovery resource region of the first discovery type or/and the configuration parameters of the discovery resource region of the second discovery type for the user equipment in the adjacent region.

In summary, by adopting the embodiment of the present invention, part or all of the D2D resource configuration parameters can be indicated to the ue through an indication signaling and/or a signaling; the D2D resource configuration parameter is used for the ue to obtain D2D resource, so that the ue can accurately know the D2D resource transmitted and received by the D2D discovery signal without affecting the cellular system.

For the example of the scenario found by D2D, there are problems: d2DUE first needs to know the resource region available for D2D discovery in system resources to send or detect discovery signals on valid resources. For this problem, the inventor of the present application analyzes and obtains in the process of implementing the technical solution of the embodiment of the present application: firstly, for two types of D2UE, Type1 and Type2B, both types of D2DUE need to know the resource area available for discovery signal transmission and reception, i.e. the discovery resource pool; meanwhile, for D2DUE of Type2B, each D2DUE also needs to know the corresponding dedicated resource to send discovery signals. Therefore, the solution proposed in the embodiment of the present invention is a resource allocation scheme of D2D, and in brief, the network side allocates a resource pool and a UE-specific resource for the D2DUE according to a specified manner, and indicates the D2DUE by a specified method, so that the D2DUE can know an effective discovery resource, and send or receive a discovery signal on the effective resource, thereby implementing resource allocation discovered by D2D.

As shown in fig. 5, the network device according to the embodiment of the present invention includes:

a first determining unit 11, configured to determine a device-to-device D2D resource configuration parameter;

an indication sending unit 12, configured to indicate part or all of the D2D resource configuration parameters to a user equipment through indication signaling and/or signaling; the D2D resource configuration parameters are used for the user equipment to obtain D2D resources.

the content of the D2D resource includes one or more of the following:

to describe the parameter expression of the D2D resource;

a period of D2D resources;

frequency domain resource bandwidth of D2D resources;

the number of D2D subframes in the D2D resource;

radio frame positions corresponding to the D2D subframes in the D2D resources;

D2D subframe locations within the D2D resource;

a bit bitmap for indicating the position of the D2D subframe;

number of resource groups within D2D resource;

the D2D resource group contains the radio frame number;

a bit bitmap within the D2D resource group indicating D2D subframe positions;

D2D resource group offset, resource group spacing;

a hopping pattern of user equipment-specific resources;

In a preferred implementation manner of the embodiment of the present invention, the indicating sending unit is further configured to indicate in a signaling and/or signaling indicating manner, where the signaling and/or signaling indicating manner includes one or more of the following manners:

In a preferred implementation manner of the embodiment of the present invention, the indication sending unit is further configured to indicate in a manner of indicating signaling and/or signals, and further includes an indication for the D2D resource configuration parameter between different adjacent cells;

As shown in fig. 6, the resource processing method of D2D in the embodiment of the present invention includes:

step 201, the user equipment obtains a resource configuration parameter D2D by receiving an indication from the network side;

step 202, the user equipment determines the D2D resource according to the D2D resource configuration parameter.

After the step 202, the method may further include the steps of: and the user equipment transmits or receives communication signals according to the D2D resource.

In a preferred implementation manner of the embodiment of the present invention, the communication signal includes: D2D signals and/or cellular system communication signals;

the D2D signals are transmitted or received on the D2D resources; the D2D signal includes: D2D signals and/or D2D communication signals;

the cellular system communication signals cannot be transmitted or received at the D2D resource.

As shown in fig. 7, the user equipment of the embodiment of the present invention includes:

an obtaining unit 21, configured to obtain a D2D resource configuration parameter by receiving an instruction from a network side;

a second determining unit 22, configured to determine D2D resources according to the D2D resource configuration parameters.

The user equipment may further include: a sending and receiving unit 23, configured to send or receive a communication signal according to the D2D resource.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The techniques described herein are applicable to a cellular wireless communication system or network. A common cellular wireless communication system may be based on a Code Division Multiple Access (CDMA) technology, a Frequency Division Multiple Access (FDMA) technology, an Orthogonal Frequency Division Multiple Access (OFDMA) technology, a single carrier-FDMA (SC-FDMA) technology, or the like. For example, the downlink (or referred to as the forward link) of a third generation partnership project (3 GPP) 3rd generation partnership project (LTE) long term evolution/long term evolution-Advanced (LTE-a) cellular communication system is based on OFDMA technology and the uplink (or referred to as the reverse link) is based on SC-FDMA multiple access technology. It is possible in the future to support hybrid multiple access techniques on one link.

In the OFDMA/SC-FDMA system, a radio resource (radio resource) for communication is a two-dimensional form of time-frequency. For example, for the LTE/LTE-a system, the communication resources of the uplink and downlink are divided in the time direction by radio frame (radioframe), each radio frame (radioframe) has a length of 10ms, and includes 10 subframes (sub-frames) with a length of 1ms, and each subframe includes two slots (slots) with a length of 0.5ms, as shown in fig. 2. And each slot may include 6 or 7 OFDM or SC-FDM symbols depending on a configuration of a Cyclic Prefix (CP).

In the frequency direction, resources are divided in units of subcarriers (subcarriers), and specifically, in communication, the minimum unit of frequency domain resource allocation is a Resource Block (RB) corresponding to one Physical Resource Block (PRB) of physical resources. One PRB includes 12 sub-carriers in the frequency domain, corresponding to one slot (slot) in the time domain. The resource corresponding to one subcarrier on each OFDM/SC-FDM symbol is called a Resource Element (RE). As shown in fig. 2.

In LTE/LTE-a cellular communication, a user equipment UE discovers an LTE network by detecting a Synchronization Signal (SS). The synchronization signals include primary synchronization signals (PSS, PrimarySS) and secondary synchronization signals (SSS, SecondarySS). By detecting the synchronization signal, the UE acquires downlink frequency and time synchronization with the base station. Moreover, since the synchronization signal carries the physical cell identifier, detecting the synchronization signal also means that the UE finds the LTE/LTE-a cell.

In the uplink, when the UE has uplink data transmission, it needs to initiate Random Access (RA) to perform uplink synchronization and establish a Radio Resource Control (RRC) connection, that is, enter an RRC Connected (Connected) state from an RRC Idle (Idle) state. When the random access is performed, the UE needs to send a random access preamble (preamble), and the network side detects the random access preamble in a specific time-frequency resource to identify the UE and synchronize the uplink.

Fig. 3 is a schematic diagram of a network deployment of a cellular wireless communication system. Shown in fig. 3 may be a 3gpp LTE/LTE-a system, or other cellular wireless communication technology. In an access network of a cellular wireless communication system, a network device generally includes a number of base stations (referred to as node bs, nodebs, evolved node bs, enbs, or enhanced node bs, evolved node bs, enbs), and other network entities (networks) or network elements (networks). Alternatively, in general, the radio access network may also be referred to as a network side (E-UTRAN, evolved universal terrestrial radio access network) in 3 GPP. The base station herein also includes a Low Power Node (LPN) in the network, such as a femtocell or a home base station (pico, Relay, femto, HeNB, or HomeeNB). For simplicity of description, only 3 base stations are shown in fig. 3. A base station provides a certain coverage area for radio signals, and terminals (or user equipments, UEs, or devices) within the coverage area can communicate with the base station wirelessly. The wireless signal coverage area of a base station may be divided into one or more cell cells or sector sectors based on some criteria, such as possibly three cells.

For device discovery for D2D communication, the D2D user equipment uses uplink radio resources of the cellular system. In order not to cause interference to data of the user equipment of the cellular system, a dedicated resource region needs to be defined for the D2D user equipment, and D2D equipment discovery can only be performed in the resource region, and meanwhile, the user equipment of the cellular system cannot transmit data in the resource region. However, the user equipment cannot determine the resource region available to the D2D user equipment, and can only obtain the available resource region from the D2D discovery resource configuration information indication sent by the network side. In order for the D2DUE to accurately know the resources for transmitting and receiving the D2D discovery signal without affecting the cellular system, it is necessary to configure the D2D discovery resources reasonably and effectively, and to provide a certain configuration indication method.

Based on the above consideration, an embodiment of the present invention provides a resource allocation method for D2D, which specifically includes:

D2D resource is converted into D2D resource configuration information in a designated mode, and the network side indicates part or all of the resource configuration information corresponding to the D2D resource to the user equipment through configuration signaling and/or other modes;

accordingly, the user equipment obtains the D2D resource configuration information according to the indication, recovers the D2D resource according to the D2D resource configuration information, and transmits and receives communication signals according to the D2D resource.

Example one

One way of configuring parameters of a D2D resource region, the configuration parameters including:

the period of a D2D resource region, the frequency domain resource bandwidth of a D2D resource region, the radio frame number (SFN) offset corresponding to the starting position of the D2D resource region, the number of D2D subframes in the D2D resource region, the radio frame position corresponding to a D2D subframe in the D2D resource region, and the D2D subframe position in the D2D resource region, wherein the user equipment determines the D2D resource region according to the configuration parameters; or,

the period of the D2D resource region, the frequency domain resource bandwidth of the D2D resource region, the radio frame number (SFN) offset corresponding to the starting position of the D2D resource region, the radio frame position corresponding to the D2D subframe in the D2D resource region, and the D2D subframe position in the D2D resource region, wherein the user equipment determines the D2D resource region according to the configuration parameters; or,

the period of the D2D resource region, the frequency domain resource bandwidth of the D2D resource region, and the radio frame number (SFN) offset corresponding to the starting position of the D2D resource region, wherein the user equipment determines the D2D resource region according to the configuration parameters and a predefined formula; or,

the period of the D2D resource region, the frequency domain resource bandwidth of the D2D resource region, the radio frame number (SFN) offset corresponding to the starting position of the D2D resource region, and 10-bit bitmap indication parameters for indicating the subframe position, wherein the D2D resource region is determined by the user equipment according to the configuration parameters, a pre-agreed special rule and the 10-bit bitmap; or,

the period of the D2D resource region, the radio frame number (SFN) offset corresponding to the starting position of the D2D resource region, and the D2D resource region are calculated and determined by the user equipment according to the configuration parameters and a predefined formula according to a fixed frequency domain resource bandwidth; or,

frequency domain resource bandwidth of the D2D resource region, 10-bit bitmap indication parameters for indicating subframe positions, the user equipment determines the D2D resource region according to the configuration parameters, the pre-agreed special rule and the 10-bit bitmap according to the fixed D2D resource region cycle and the radio frame number (SFN) offset corresponding to the fixed D2D resource region starting position; or,

the resource allocation method comprises the steps of a period of a D2D resource region, a frequency domain resource bandwidth of the D2D resource region, a radio frame number (SFN) offset corresponding to a starting position of the D2D resource region, the number of D2D resource groups in the period, the number of radio frames contained in the D2D resource groups, an offset corresponding to a starting position of the D2D resource region corresponding to a first D2D resource group in the period, a resource group interval and 10-bit bitmap indication parameters for indicating subframe positions, wherein the user equipment determines the D2D resource region according to the configuration parameters.

The above described configurations can also be combined into new configurations in different combinations.

For the discovery resource region corresponding to the second resource allocation manner and the communication resource region corresponding to the first resource allocation manner, the D2D resource configuration parameter may further include a hopping manner of the user equipment-specific resource.

Configuring a D2D resource region, comprising: the period of the D2D resource region, the frequency domain resource bandwidth of the D2D resource region, the radio frame number (SFN) offset corresponding to the starting position of the D2D resource region, the number of D2D subframes in the D2D resource region, the radio frame position corresponding to the D2D subframe in the D2D resource region, and the D2D subframe position in the D2D resource region.

For the period of the D2D resource region, the number of radio frames is used as a basic unit, the time domain length of the D2D resource region with the period of N is 10 × N milliseconds ms, which may be a value supporting a limited period, and the network side selects one of the configurations and indicates the corresponding index to the user equipment. For example: for D2D, a maximum of 8 were found to be supported: {4, 8, 16, 32, 64, 128, 256, 512}, assuming 16(160ms) configuration, index 3 is indicated to the UE. Still more specific supported period values can be provided, such as {5, 10, 20, 50, 100, 200, 500, 1000. The user equipment determines the period for D2D to discover the resource region according to the indicated index.

And a radio frame number offset (SFNoffset) corresponding to the starting position of the D2D resource region, wherein a radio frame with a system frame number SFN satisfying the formula SFNmodN ═ SFNoffset is used as a starting frame corresponding to the D2D resource period, and mod represents the modulo operation. For example, it was found for D2D that 4 values are supported: { f0, f1, f2, f3}, the network side indicates the corresponding index to the user equipment. And the user equipment determines the radio frame number offset corresponding to the starting position of the resource area found by the D2D according to the indicated index.

The frequency domain resource bandwidth of the D2D resource region can be represented by 2 parameters of the starting resource block position and the number of resource blocks, k 0: starting resource block position, K: the number of resource blocks. The user equipment determines the frequency domain resource bandwidth of the D2D resource region according to the parameters K0 and K. Several configurations can also be fixed, the parameters are combined into the initial resource block position and the number of resource blocks, each configuration corresponds to an index, and the signaling indication index is configured. Table 1 below is an example of this approach.

Index	Starting resource block location	Number of resource blocks
			0	0	50
1	20	25

TABLE 1

The number M of discovery subframes within the D2D resource region indicates the number of subframes available for D2D signaling within the D2D resource region. It may be that a limited number of values are supported, and the network side selects one of the configurations and indicates the corresponding index to the user equipment. For example: for D2D communication, a maximum of 8 are supported: {1, 2, 4, 8, 16, 32, 64, 128}, assuming configuration to be 16(160ms), index 4 is indicated to the UE. And the user equipment determines the number of the D2D subframes in the resource region of the D2D communication according to the indicated index. Here, this is just an example, and the number of the specifically supported D2D subframes may also be more possible values, such as {3, 5, 6, 7, 9, 10, 20, 100.

The radio frame position corresponding to the D2D subframe in the D2D resource region indicates the position of the radio frame in which the D2D subframe is located. The position of the radio frame may be indicated by the indexes of the radio frame sequence corresponding to the D2D subframes in the period, for example, if the period includes 3 discovery subframes, and the discovery subframes are respectively in 3 radio frames, the indexes of the 3 radio frames are 0, 1, and 2, respectively, according to the size of the frame. If 2 discovery subframes are configured in a certain frame, the corresponding frame index is issued for 2 times, and the similar mode is performed for multiple times. Fig. 8 shows an example in which 3 discovery subframes are included in 2 radio frames, and the corresponding frame indexes in the signaling are 0, 1, and the subframe numbers are 3, 3, and 8, respectively.

Another way to configure the radio frame position corresponding to the D2D subframe in the D2D resource region is calculated by an agreed formula, for example, assuming that the resource pool period is N and the number of discovery subframes is M, the radio frame position including the first discovery subframe is obtained according to (NmodM), and assuming that the period start position is L, the radio frame position including the first discovery subframe is (L + (NmodM)). The positions of the found radio frames are sequentially determined by taking (N/M) as a step size,/represents the quotient of the division.

The radio frame position corresponding to the D2D subframe in the D2D resource region may also be configured by a special rule, for example, for D2D communication, configured by parity frame, a parameter b is indicated to indicate that the D2D communication subframe is configured on odd or even frame, if it is odd, the D2D communication subframe is configured on the first M odd radio frames, otherwise, the D2D communication subframe is configured on the first M even radio frames. The D2D user equipment transmits D2D communication signals over correspondingly configured radio frames and subframes.

The configuration of the D2D subframe positions in the D2D resource region is configured in one manner by subframe numbers, such as 3, 3, and 8 in the subframe configuration in fig. 8.

Another configuration of the subframe positions is indicated by a bitmap with 10 bits, corresponding to 10 subframe positions, "1" represents a discovery subframe, and "0" does not. When a frame contains a plurality of D2D subframes, the frame index does not need to be repeatedly indicated. For example, 0001000000 represents subframe 3 configured as a discovery subframe in a radio frame, and further, for example, 0000000110 represents subframes 7 and 8 configured as discovery subframes in a radio frame.

Similarly, the configuration of the subframe position may also be determined by a convention formula, which is similar to the configuration of the radio frame, for example, assuming that the resource pool period is N and the number of the discovery subframes is M, in the radio frame determined to contain the discovery subframes, the position of the discovery subframe is determined according to (sfnmodno), where Nu is the number of subframes excluding the downlink subframes in the radio frame.

In addition, the subframe position can be indicated through a 10-bit bitmap, and the subframe position is found according to the bit bitmap configuration in all radio frames.

It should be noted that the numbers are only examples and should not be construed as limiting the embodiments of the present invention.

The D2D resource region configuration may further include: the resource allocation method comprises the steps of a period of a D2D resource region, a frequency domain resource bandwidth of the D2D resource region, a radio frame number (SFN) offset corresponding to a starting position of the D2D resource region, the number of D2D resource groups in the period, the number of radio frames contained in the D2D resource groups, an offset corresponding to a starting position of the D2D resource region corresponding to a first D2D resource group in the period, a resource group interval and 10-bit bitmap indication parameters for indicating subframe positions, wherein the user equipment determines the D2D resource region according to the configuration parameters.

The configuration of the number of D2D resource groups in a cycle may be indicated by a parameter, such as: ng 3/5/8/16/. the Ng represents the number of discovery resource groups in the period, and represents that 3/5/8/16/. the resource groups exist in the discovery resource period. The number of radio frames contained in the D2D resource group may be indicated by parameter values, such as: 1/2/3/. denotes that the number of wireless frames contained within a resource group was found to be 1/2/3/. The offset of the starting position of the corresponding D2D resource region of the first D2D resource group in the period is used to indicate the offset value of the starting position of the first resource group in the D2D resource period, and can be indicated by the number of shifted radio frames, assuming that it is represented by GroupOffset, for example: GroupOffset 1/2/3/. denotes the location of the first discovery resource group in the period after the discovery resource region start location offset 1/2/3/. this is one radio frame. The resource group interval indicates the interval between D2D resource groups in the cycle, and may be indicated by a parameter, such as 0/1/2/. to indicate that the interval between resource groups found in the cycle is 0/1/2/. radio frames. Within the group of D2D resources, the configured D2D subframe locations are represented by a bit bitmap of 10 bits length, e.g., 0000000110 represents subframes 7 and 8 in a radio frame as discovery subframes.

The position of the D2D resource group may also be calculated by an agreed formula, for example, determined according to the formula (SFNmodNp) ═ offset, where SFN is a radio frame number, Np is a D2D resource group interval, and offset is a configured resource group offset value. The formula indicates that if the value of the radio frame number modulo the interval of the D2D resource group is equal to the configured offset value, the corresponding radio frame is the starting radio frame of the D2D resource group, K consecutive radio frames are the D2D resource group, and K is the number of radio frames included in the D2D resource group. Where K is not greater than the D2D resource group interval Np. For example, assume that the resource group offset value is configured to be 0, the D2D communication resource group interval is configured to be 10, and the D2D communication resource group contains 3 radio frames. The user equipment sets the formula (SFNmod10) ═ 0 according to the formula, the radio frames meeting the formula are D2D communication resource group start frames, and 3 continuous radio frames form one D2D communication resource group.

In addition, the above formula can also be calculated by using the index number of the radio frame in the D2D resource region period, so that the formula becomes (SfIndexmodNp) ═ offset, where SfIndex is the index number of the radio frame in the D2D resource region period. As shown in fig. 9, it is assumed that a cycle of a discovery resource region is 320ms, a frequency domain resource bandwidth of the discovery resource region is 0-49 resource blocks, a radio frame number (SFN) offset corresponding to a starting position of the discovery resource region is 0, a resource group offset value is configured to be 0, a discovery resource group interval is configured to be 10 radio frames, a number of radio frames included in a discovery resource group is 3, and a 10-bit bitmap indicating a discovery subframe position is 0000000010.

For the parameter configuration of the D2D resource region, it can also be implemented by means of a D2D resource region configuration table, where the configuration table includes different kinds of fixed configurations of the D2D resource region parameters, each kind of fixed configuration corresponds to an index number, and the network side only needs to indicate the index number to the user equipment. And the user equipment finds the corresponding specific configuration parameters from the D2D resource area configuration table according to the index number. An example is shown in table 2. In the example of table 2, the discovery resource region configuration table includes 8 configuration parameters, which respectively correspond to 0 to 7 and total 8 index numbers, and assuming that the network side determines that the configuration parameter corresponding to the index number 7 is the configuration parameter of the discovery resource region, the network side issues the index number 7 to the user equipment through the configuration signaling. After receiving the index number 7, the user equipment determines the configuration parameter corresponding to the index number 7 as the configuration parameter corresponding to the discovery resource region through the discovery resource region configuration table.

TABLE 2

Also, the above-mentioned numbers are examples and should not be construed as limiting the invention.

Example two

For the discovery type corresponding to the second resource allocation manner or the communication type corresponding to the first resource allocation manner, in addition to configuring the D2D resource region parameter, the ue needs to configure a parameter of a resource dedicated to the D2D ue, and the ue determines a location of the resource dedicated to the ue according to the dedicated resource parameter, so as to send a discovery signal corresponding to the second resource allocation manner or a communication signal corresponding to the first resource allocation manner.

The D2D user equipment specific resource location may be indicated with 2 parameters in time and frequency domain, taking discovery resources as an example, for example: td2d equals 0, which indicates that the discovery subframe in the radio frame with odd radio frame number SFN in the discovery resource region is the dedicated resource time domain position of a certain ue, and Td2d equals 1, which indicates that the discovery subframe in the radio frame with even radio frame number SFN in the discovery resource region is the dedicated resource time domain position of a certain ue; fd2d denotes the frequency domain location of the user equipment dedicated discovery resource, Fd2 d-1/2/3/. denotes the resource block 1/2/3/. as the frequency domain location of the dedicated discovery resource for a certain user equipment.

The resource location dedicated to the D2D ue may also be indicated by using a parameter, where the resource location dedicated to the ue is indicated by using the parameter as a resource index number in a resource region corresponding to the first resource allocation manner or the second resource allocation manner, and the resource index number corresponds to the resource location in the resource region corresponding to the first resource allocation manner or the second resource allocation manner according to a certain mapping relationship. Fig. 10 shows an example of the mapping relationship. Assuming that there are 3 discovery subframes in the device discovery resource period, each subframe contains n Resource Blocks (RBs), the resources in the discovery resource region are mapped with indexes of 0 to n + m-1 in the sequence as shown in the figure by using the Resource Blocks (RBs) as units. The mapping method includes 2 ways including a frequency domain first and a time domain first, as shown in fig. 11, which corresponds to a case where a discovery resource period includes m subframes, and each subframe includes n resource blocks.

An example of indicating the user equipment specific discovery resource location with a parameter Rd2 d: rd2d ═ 0 denotes that the resource block with odd resource index number in the discovery resource region corresponding to the second resource allocation mode is the dedicated discovery resource of a certain user equipment; and Rd2d is equal to 0, which indicates that the resource block with even resource index number in the discovery resource region corresponding to the second resource allocation manner is the dedicated discovery resource of a certain user equipment. The user equipment determines the location of the dedicated discovery resource according to the parameter Rd2d and the mapping relationship shown in fig. 10 and 11. Of course, other ways may be used for the specific mapping.

The resources dedicated to the D2D user equipment may also be configured by indicating the initial location of the dedicated resources and the resource hopping mode through parameters, where the resource hopping mode may be indicated by the parameters or may be defined in a certain mode. For example, the time domain parameter Td2d ═ 1/2/3/. indicates that the first discovery subframe of the 1/2/3 th/. radio frame within the discovery resource region is the time domain position of the initial position of the dedicated discovery resource, and the Fd2d ═ 1/2/3/. denotes the frequency domain position of the resource block 1/2/3/. this is the initial position of the dedicated discovery resource. The user equipment determines an initial position of the dedicated discovery resource according to the indicated parameters Td2d and Fd2d, and determines the dedicated discovery resource of the user equipment in combination with an indicated or agreed discovery resource hopping pattern, such as hopping 3 discovery subframes in the time domain. Another example is: the parameter Rd2d is a resource block index indicating the starting position of the dedicated discovery resource, the user equipment determines that the starting position of the dedicated discovery resource is the resource block 3 of the first discovery subframe in the period according to the mapping relationship of fig. 10 and fig. 11, and then determines the dedicated discovery resource of the user equipment in the discovery resource region by combining the indicated or agreed resource hopping manner.

The above numbers are exemplary and are not to be construed as limiting the invention.

EXAMPLE III

For D2D resource configuration between different adjacent cells, an indication of configuration signaling may need to be made between the cells. The following is an example illustration of the D2D discovery technique, but is equally applicable to the D2D communication technique.

For adjacent cells of the synchronous network, timing synchronization is carried out between the adjacent cells, and radio frames are aligned with radio frame numbers. Different cells adopt the same discovery resource configuration, so that the user equipment directly determines the discovery resource region of the adjacent cell according to the discovery resource configuration information of the cell and receives the discovery signal of the adjacent cell in the discovery resource region.

For adjacent cells of the asynchronous network, the timing between the adjacent cells is not synchronous, and the radio frames are not aligned with the radio frame numbers. Even if different cells adopt the same discovery resource configuration, configuration signaling indication between adjacent cells is still required. And the user equipment determines the discovery resource area of the adjacent cell according to the configuration signaling indication of the adjacent cell and by combining the discovery resource configuration information of the cell, and receives the discovery signal of the adjacent cell in the discovery resource area.

A resource allocation signaling indication mode between cells is that partial or all resource allocation parameters, and/or radio frame information, and/or cell identification information are interactively discovered between base stations of adjacent cells through an X interface, an interface of an implementation layer, or a wireless air interface. The user equipment obtains the discovery resource configuration information of the adjacent cell from the configuration signaling indication issued by the base station, and determines the discovery resource area of the adjacent cell.

Fig. 12 shows an example of a manner of indicating the resource allocation signaling between cells. UE83 and UE84 belong to cells Cell85 and Cell86 in base station 81 and base station 82, respectively. The discovery resource regions of Cell85 and Cell86 are identically configured because the timing of Cell1 and Cell2 are not synchronized and the radio frame numbers are not aligned. Assuming that the cells 85 and 86 obtain mutual timing information in other ways, the base stations 81 and 82 interact with the Cell ID and the radio frame number through an X interface or an implementation-level interface or a radio air interface. After receiving the radio frame number of the neighboring Cell base station, the base station may count the radio frame number of the neighboring Cell by radio frame timing based on the received radio frame number to obtain radio frame number timing of the neighboring Cell, for example, the base station 2 counts the radio frame number of the Cell85 based on the received radio frame number of the base station 1 to obtain radio frame number timing of the Cell85, and indicates the radio frame number timing of the Cell85 to the user equipment, such as the UE 84. The UE84 determines the discovery resource of the Cell85 based on the resource pool configuration information of the Cell86 of the Cell according to the radio frame number timing of the Cell85 issued by the base station, and receives the discovery signal of the neighboring Cell on the corresponding resource.

Another example of the resource allocation signaling scheme between cells is shown in fig. 13. Timing information and/or radio frame numbers are forwarded by the UE between unsynchronized neighboring cells, and the forwarded resource location is on the first discovery subframe of the discovery resource region period, e.g., subframe 91 in fig. 13. The resource pool information configuration of the adjacent cell is consistent, the receiving UE can obtain the adjacent cell timing according to the timing information forwarded by the adjacent cell UE, the initial position of the adjacent cell discovery resource region can be determined according to the offset of the first discovery subframe and the pre-configured resource period, and the wireless resource of the adjacent cell can be determined by combining the discovery resource configuration of the cell. Or, the receiving UE may obtain the radio frame number timing of the neighboring cell according to the radio frame number forwarded by the neighboring cell UE, and may determine the radio resource of the neighboring cell by combining the discovery resource configuration of the local cell.

The above embodiments mostly illustrate the D2D discovery signal as an example, but this does not limit the application of the present disclosure to communication with D2D.

The integrated module according to the embodiment of the present invention may also be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as an independent product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.

Correspondingly, the embodiment of the present invention further provides a computer storage medium, in which a computer program is stored, where the computer program is used to execute the device-to-device resource allocation method and the device-to-device resource processing method according to the embodiment of the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. A method for device-to-device resource configuration, the method comprising:

2. The method of claim 1, wherein the D2D resources comprise: wireless resources that D2D user equipment can use to transmit or receive D2D signals;

the content of the D2D resource includes one or more of the following:

3. The method according to claim 1, wherein the network side determines the D2D resource configuration parameter in one or more of the following manners:

to describe the parameter expression of the D2D resource;

4. The method of claim 1, wherein the D2D resource configuration parameters comprise: configuration parameter content corresponding to D2D resources;

5. The method of claim 4, wherein the D2D resource configuration parameters comprise one or more of the following parameters:

a period of D2D resources;

frequency domain resource bandwidth of D2D resources;

the number of D2D subframes in the D2D resource;

radio frame positions corresponding to the D2D subframes in the D2D resources;

D2D subframe locations within the D2D resource;

a bit bitmap for indicating the position of the D2D subframe;

number of resource groups within D2D resource;

the D2D resource group contains the radio frame number;

a bit bitmap within the D2D resource group indicating D2D subframe positions;

D2D resource group offset, resource group spacing;

a hopping pattern of user equipment-specific resources;

6. The method according to claim 4, wherein the configuration parameters corresponding to the first resource allocation scheme and the configuration parameters corresponding to the second resource allocation scheme are independent from each other, or some of the parameters are the same.

7. The method according to claim 4, wherein the configuration parameters of the user equipment dedicated resources corresponding to the first resource allocation manner and/or the second resource allocation manner include one or more of the following parameters:

8. The method according to claim 7, wherein the expression used for the initial location of the ue-specific resource corresponding to the first resource allocation and/or the second resource allocation comprises any one of the following:

9. The method of claim 1, wherein the indicating by way of indication signaling and/or signals comprises one or more of:

10. The method according to claim 1, wherein the indicating is performed by means of indication signaling and/or signals, and further comprising an indication of the D2D resource configuration parameters used between different adjacent cells;

11. The method according to claim 10, wherein the indication manner of the D2D resource configuration parameter between the adjacent different cells comprises any one of the following:

12. A network device, characterized in that the network device comprises:

13. The network device of claim 12, wherein the D2D resources comprise: wireless resources that D2D user equipment can use to transmit or receive D2D signals;

the content of the D2D resource includes one or more of the following:

14. The network device according to claim 12, wherein the network side determines the D2D resource configuration parameter in one or more of the following manners:

to describe the parameter expression of the D2D resource;

15. The network device of claim 12, wherein the D2D resource configuration parameters comprise: configuration parameter content corresponding to D2D resources;

16. The network device of claim 15, wherein the D2D resource configuration parameters comprise one or more of the following parameters:

a period of D2D resources;

frequency domain resource bandwidth of D2D resources;

the number of D2D subframes in the D2D resource;

radio frame positions corresponding to the D2D subframes in the D2D resources;

D2D subframe locations within the D2D resource;

a bit bitmap for indicating the position of the D2D subframe;

number of resource groups within D2D resource;

the D2D resource group contains the radio frame number;

a bit bitmap within the D2D resource group indicating D2D subframe positions;

D2D resource group offset, resource group spacing;

a hopping pattern of user equipment-specific resources;

17. The network device according to claim 15, wherein the configuration parameters corresponding to the first resource allocation manner and the configuration parameters corresponding to the second resource allocation manner are independent from each other or are partially the same.

18. The network device according to claim 15, wherein the configuration parameters of the ue-specific resources corresponding to the first resource allocation manner and/or the second resource allocation manner include one or more of the following parameters:

19. The network device according to claim 18, wherein the expression used for the initial location of the ue-specific resource corresponding to the first resource allocation and/or the second resource allocation comprises any one of the following:

20. The network device according to claim 12, wherein the indication sending unit is further configured to indicate in a signaling and/or signaling manner that one or more of the following manners are included:

21. The network device according to claim 12, wherein the indication sending unit is further configured to indicate in a manner of indication signaling and/or signal, and further includes an indication for the D2D resource configuration parameter between different adjacent cells;

22. The network device according to claim 21, wherein the indication manner of the D2D resource configuration parameter between the adjacent different cells comprises any one of:

23. A device-to-device resource handling method, the method comprising:

24. A user equipment, the user equipment comprising: