CN104754691A

CN104754691A - Method and device for sending message

Info

Publication number: CN104754691A
Application number: CN201310733325.6A
Authority: CN
Inventors: 赵亚利; 许芳丽; 曾二林; 傅婧
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-12-26
Filing date: 2013-12-26
Publication date: 2015-07-01
Anticipated expiration: 2033-12-26
Also published as: CN104754691B

Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and device for sending a message, and aims to solve the problem that the implementation complexity is increased since user equipment sends a D2D (Device to Device) Discovery resource request message in parallel in the prior art. The method in the embodiment of the invention comprises the following steps: determining a D2D Discovery message to be sent by user equipment; and controlling the D2D Discovery message within the same time interval in order to avoid parallel sending of the D2D Discovery message within the same time interval. In the embodiment of the invention, the D2D Discovery message is controlled within the same time interval to avoid parallel sending of the D2D Discovery message within the same time interval, so that a standard and the implementation complexity are lowered.

Description

A kind of method and apparatus sending message

Technical field

The present invention relates to wireless communication technology field, particularly relate to a kind of method and apparatus sending message.

Background technology

At LTE(Long Term Evolution, Long Term Evolution) in system, what communication was taked is the central controlled mode of network, i.e. UE(subscriber equipment) up-downgoing data carry out all under the control of a network sending and receiving.Communication between UE and UE, undertaken forwarding and controlling by network, there is not direct communication link between UE and UE, under this mode, the transfer of data of UE and network can referred to as D2N(Device to Network, equipment is to network) transmission, as shown in Figure 1.

D2D Discovery(Device to Device Discovery, device-to-device finds) mechanism i.e. direct discovery mechanism between two equipment close to each other.The equipment of D2D Discovery can be all net equipment or be all that the equipment of off-grid or equipment component are at mesh portions equipment off-grid.So-called at net namely at 3GPP(3rd Generation Partnership Project, 3G (Third Generation) Moblie standardization body) use the frequency spectrum resource of 3GPP network in network coverage, although so-called off-grid is namely outer at 3GPP network coverage or use the special frequency spectrum of D2D in 3GPP network coverage.

Current 3GPP Rel-12 version only considers the D2D Discovery in net situation, for the D2D Discovery at net, the equipment carrying out D2D Discovery can belong to same or different e NB(evolved base station), even can also across PLMN (Public Land Mobile Network, public land mobile network).But consider that transmitting power of equipment is limited, no matter be across eNB or the D2D Discovery across PLMN, a definite limitation may be had to the citing between D2D Discovery equipment, only have meet this required distance equipment between just can carry out D2D Discovery.

UE will send D2D Discovery signal, and need to obtain signal and send the resource used, current D2DDiscovery signal sends two kinds of modes:

1, competitive resource distributes:

Namely base station be Equipments Setting resource pool or in UE pre-allocated recourses pond, UE select voluntarily from resource pool D2D Discovery signal send use resource.

2, non-competing Resourse Distribute:

Namely introduce a Resourse Distribute Controlling vertex, this node is based on the D2D Discovery resource request message of equipment, and for equipment distributes D2D Discovery private resource, private resource can be semi-static distribution or dynamic assignment.

Current subscriber equipment is transmitted in parallel D2D Discovery resource request message likely, if subscriber equipment transmitted in parallel D2D Discovery resource request message, just so need to do existing D2D discovery resource allocation process to strengthen, this is by the complexity of the standard of introducing and realization.Such as:

Distribute for competitive resource, a UE competes multiple resource at synchronization and resource selection algorithm can be caused complicated, and can increase collision probability.

For non-competing Resourse Distribute, the resource needing clear and definite Resourse Distribute Controlling vertex to distribute and the corresponding relation of D2DDiscovery message.

In sum, if current subscriber equipment transmitted in parallel D2D Discovery resource request message, the complexity of standard and realization can be increased.

Summary of the invention

The invention provides a kind of method and apparatus sending message, there is subscriber equipment transmitted in parallel D2D Discovery resource request message in order to solve in prior art, the problem of the complexity of realization can be increased.

A kind of method sending message that the embodiment of the present invention provides, comprising:

Subscriber equipment is determined to need transmitting apparatus to device discovery D2D Discovery message;

Described subscriber equipment controls D2D Discovery message, to avoid D2D Discovery message transmitted in parallel in the same time period in section at one time.

Preferably, described subscriber equipment at one time interior control of section sends D2D Discovery message, comprising:

The high level of described subscriber equipment judges have D2D Discovery message to need to send, and determine that the low layer of described subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, a described D2D Discovery message is selected to send to the low layer of described subscriber equipment, with D2D Discovery message transmitted in parallel in the low layer avoiding described subscriber equipment at one time section.

Preferably, by a kind of in following manner, the high level of described subscriber equipment judges that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending:

The high level of described subscriber equipment seeks information to the low layer transmission of described subscriber equipment; The low layer of described subscriber equipment, after seeking information described in receiving, does not have D2DDiscovery message that is to be sent or that sending if current, then the high level to described subscriber equipment replys positive confirmation message; Otherwise, reply negative acknowledgement message to the high level of described subscriber equipment; The high level of described subscriber equipment is after receiving described positive confirmation message, determine that the low layer of described subscriber equipment is current and there is no D2DDiscovery message that is to be sent or that sending, after receiving described nack message, determining that the low layer of described subscriber equipment is current has D2D Discovery message that is to be sent or that sending; Or

The high level of described subscriber equipment seeks information to the low layer transmission of described subscriber equipment; The low layer of described subscriber equipment is after seeking information described in receiving, and do not have D2DDiscovery message that is to be sent or that sending if current after, then the high level to described subscriber equipment replys positive confirmation message; Otherwise by the time current there is no D2D Discovery message that is to be sent or that sending after, then reply positive confirmation message to the high level of described subscriber equipment; The high level of described subscriber equipment is after receiving described positive confirmation message, and determining that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending; Or

The low layer of described subscriber equipment current there is no D2D Discovery message that is to be sent or that sending after, the high level to described subscriber equipment replys positive confirmation message; The high level of described subscriber equipment is after receiving described positive confirmation message, and determining that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending.

Preferably, by following manner, the high level of described subscriber equipment judges that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending:

Whether the low layer of high level to described subscriber equipment of described subscriber equipment is current has carrying out that be to be sent or that send to estimate, and does not have message that is to be sent or that sending to judge that the low layer of described subscriber equipment is current.

Preferably, the high level of described subscriber equipment also comprises after described D2D Discovery message is sent to the low layer of described subscriber equipment:

The low layer of described subscriber equipment is after receiving the D2D Discovery message from high level, D2D Discovery message that is to be sent or that sending is had if current, from the D2D Discovery message received and the current to be sent or D2D Discovery message that sending, select one of them D2DDiscovery message to send, abandon remaining D2D Discovery message.

Preferably, the low layer of described subscriber equipment determines the D2DDiscovery message that needs to abandon according in following manner:

The low layer of described subscriber equipment abandons the D2D Discovery message received from high level; Or

The low layer of described subscriber equipment abandons the D2DDiscovery message that described current low layer is to be sent or sending; Or

The low layer of described subscriber equipment according to the D2D Discovery message received from high level and described current low layer to be sent or sending the quality of service qos parameter of D2D Discovery message, determine the D2D Discovery message needing to abandon; Or

The low layer of described subscriber equipment is according to the D2D Discovery message received from high level and attribute corresponding to described current low layer D2D Discovery message to be sent or that sending, and abandoning described attribute is allow to seize corresponding D2D Discovery message.

Preferably, the low layer of described subscriber equipment also comprises after abandoning remaining D2D Discovery message:

The low layer of described subscriber equipment is by the high level of subscriber equipment described in the D2D Discovery message informing that abandons.

Preferably, D2D Discovery message is sent to the low layer of described subscriber equipment by the high level of described subscriber equipment, comprising:

If there are many described D2D Discovery message to need to send, the high level of described subscriber equipment is according to the qos parameter of each described D2D Discovery message, select a described D2D Discovery message, and send to the low layer of described subscriber equipment the described D2D Discovery message selected.

D2DDiscovery message, after having D2D Discovery message to need transmission, is sent to the low layer of described subscriber equipment by the high level of described subscriber equipment;

The D2D Discovery message stores from high level that receives to lower layer buffers district, and selects a D2D Discovery message to send in section by the low layer of described subscriber equipment at one time from lower layer buffers district.

Preferably, the high level of described subscriber equipment be following in one:

Operation layer, device-to-device D2D dedicated management layer and Non-Access Stratum NAS;

The low layer of described subscriber equipment be following in one:

Packet data polymerized agreement PDCP layer, wireless spread-spectrum technology rlc layer and media access control MAC layer.

Preferably, the described same time period be one scheduling time unit or one section of duration.

A kind of subscriber equipment sending message that the embodiment of the present invention provides, comprising:

Determination module, needs transmitting apparatus to device discovery D2D Discovery message for determining;

Control module, controls D2D Discovery message in section at one time, to avoid D2D Discovery message transmitted in parallel in the same time period.

Preferably, described control module specifically comprises:

Be in the first high-rise module of described subscriber equipment high level, D2D Discovery message is had to need to send for judging, and determine that the low layer of described subscriber equipment is current and there is no D2DDiscovery message that is to be sent or that sending, a described D2D Discovery message is selected to send to the low layer of described subscriber equipment, with D2D Discovery message transmitted in parallel in the low layer avoiding described subscriber equipment at one time section;

Be in the first modules at lower layers of described subscriber equipment low layer, for sending D2D Discovery message.

Preferably, described first high-rise module specifically for: to described subscriber equipment low layer send seeks information; After receiving described positive confirmation message, determine that the low layer of described subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, after receiving described nack message, determining that the low layer of described subscriber equipment is current has D2D Discovery message that is to be sent or that sending; Described first modules at lower layers specifically for: after seeking information described in receiving, there is no D2DDiscovery message that is to be sent or that sending if current, then to described subscriber equipment high level reply positive confirmation message; Otherwise, reply negative acknowledgement message to the high level of described subscriber equipment; Or

Described first high-rise module specifically for: to described subscriber equipment low layer send seeks information; After receiving described positive confirmation message, determining that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending; Described first modules at lower layers specifically for: after seeking information described in receiving, there is no D2D Discovery message that is to be sent or that sending if current after, then to described subscriber equipment high level reply positive confirmation message; Otherwise by the time current there is no D2DDiscovery message that is to be sent or that sending after, then reply positive confirmation message to the high level of described subscriber equipment; Or

Described first high-rise module specifically for: after receiving described positive confirmation message, determining that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending; Described first modules at lower layers specifically for: current there is no D2D Discovery message that is to be sent or that sending after, to described subscriber equipment high level reply positive confirmation message.

Preferably, described first high-rise module specifically for:

Whether there is carrying out that be to be sent or that send to estimate to the low layer of described subscriber equipment is current, there is no message that is to be sent or that sending to judge that the low layer of described subscriber equipment is current.

Preferably, described first modules at lower layers specifically for:

After receiving the D2D Discovery message from high level, D2D Discovery message that is to be sent or that sending is had if current, from the D2D Discovery message received and the current to be sent or D2D Discovery message that sending, select one of them D2D Discovery message to send, abandon remaining D2D Discovery message.

Preferably, described first modules at lower layers specifically for, determine the D2D Discovery message needing to abandon according in following manner:

Abandon the D2D Discovery message received from high level; Or

Abandon the D2D Discovery message that described current low layer is to be sent or sending; Or

According to the D2D Discovery message received from high level and described current low layer to be sent or sending the quality of service qos parameter of D2D Discovery message, determine the D2D Discovery message needing to abandon; Or

According to the D2D Discovery message received from high level and attribute corresponding to described current low layer D2D Discovery message to be sent or that sending, abandoning described attribute is allow to seize corresponding D2DDiscovery message.

Preferably, described first modules at lower layers also for, by the high level of subscriber equipment described in the D2D Discovery message informing that abandons.

Preferably, described first high-rise module specifically for:

If there are many described D2D Discovery message to need to send, according to the qos parameter of each described D2D Discovery message, select a described D2D Discovery message, and send to the low layer of described subscriber equipment the described D2D Discovery message selected.

Preferably, described control module specifically comprises:

Be in the second high-rise module of described subscriber equipment high level, for after having D2D Discovery message to need transmission, D2D Discovery message sent to the low layer of described subscriber equipment;

Be in the second modules at lower layers of described subscriber equipment low layer, for the D2DDiscovery message stores from high level that will receive to lower layer buffers district, and from lower layer buffers district, select a D2D Discovery message to send in section at one time.

The low layer of described subscriber equipment be following in one:

The embodiment of the present invention controls D2D Discovery message in section at one time, to avoid D2D Discovery message transmitted in parallel in the same time period, thus reduces the complexity of standard and realization.

Accompanying drawing explanation

Fig. 1 is the central controlled communication scheme of network in LTE system in background technology;

Fig. 2 is the method flow schematic diagram that the embodiment of the present invention one sends message;

Fig. 3 is the device structure schematic diagram that the embodiment of the present invention two sends message;

Fig. 4 is the device structure schematic diagram that the embodiment of the present invention three sends message.

Embodiment

The embodiment of the present invention controls D2D Discovery message in section at one time, to avoid D2D Discovery message transmitted in parallel in the same time period, thus reduces the complexity of realization.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

As shown in Figure 2, the method that the embodiment of the present invention one sends message comprises:

Step 201, subscriber equipment are determined to need to send D2D Discovery message;

Step 202, subscriber equipment control D2D Discovery message, to avoid D2D Discovery message transmitted in parallel in the same time period in section at one time.

The same time period of the embodiment of the present invention can be scheduling time unit (such as subframe) or one section of duration.

If the same time period be one scheduling time unit, so different D2D Discovery message just can not at parallel transmission in same scheduling time unit, but can parallel transmission in different scheduling time unit;

If the same time period is one section of duration, so different D2D Discovery message does not only allow parallel transmission in same scheduling time unit, and the different scheduling time in one section of duration does not also allow parallel transmission in unit.

Wherein, the mode that embodiment of the present invention subscriber equipment controls to send D2D Discovery message at one time in section is divided into that the high level of subscriber equipment controls, the high level of subscriber equipment controls together with low layer, and the low layer of subscriber equipment controls three kinds of modes, is introduced respectively below.

In force, the high level of embodiment of the present invention subscriber equipment be following in one:

Operation layer, D2D(device-to-device) dedicated management layer and NAS(Non Access Stratum Non-Access Stratum);

The low layer of subscriber equipment be following in one:

PDCP(Packet Data Convergence Protocol, packet data polymerized agreement) layer, RLC(Radio Link Control, wireless spread-spectrum technology) layer and MAC(Medium Access Control, medium education) layer.

The high level of control mode one, subscriber equipment controls.

Wherein, the high level of subscriber equipment needs to send there being D2D Discovery message, and determine that the low layer of subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, a D2DDiscovery message is selected to send to the low layer of subscriber equipment, with D2D Discovery message transmitted in parallel in the low layer avoiding subscriber equipment at one time section.

In force, by a kind of in following manner, the high level of subscriber equipment judges that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending:

Judgment mode one:

The high level of subscriber equipment seeks information to the low layer transmission of subscriber equipment; The low layer of subscriber equipment, after receiving the information of seeking, does not have D2D Discovery message that is to be sent or that sending if current, then the high level to subscriber equipment replys positive confirmation message; Otherwise, reply negative acknowledgement message to the high level of subscriber equipment; The high level of subscriber equipment is after receiving positive confirmation message, determine that the low layer of subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, after receiving nack message, determining that the low layer of subscriber equipment is current has D2D Discovery message that is to be sent or that sending.

Concrete, when the high level of subscriber equipment is once judgement has D2D Discovery message to send, so need first to seek information to the low layer transmission of subscriber equipment before the low layer being handed down to subscriber equipment;

After the low layer of subscriber equipment receives the information of seeking, judge whether the current number of D2D Discovery message to be sent or that sending is 0, and if so, then the high level to subscriber equipment replys positive confirmation message at once; Otherwise, reply negative acknowledgement message;

The high level of subscriber equipment is after receiving positive confirmation message, determine that the low layer of subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, after receiving negative acknowledgement message, determine that the low layer of subscriber equipment is current and have D2D Discovery message that is to be sent or that sending, then can waiting for a period of time, (concrete duration can set as required; Also can be set by high level), the low layer transmission again to subscriber equipment seeks information, until receive positive confirmation message.

Judgment mode two:

The high level of subscriber equipment seeks information to the low layer transmission of subscriber equipment; The low layer of subscriber equipment is after receiving the information of seeking, and do not have D2D Discovery message that is to be sent or that sending if current after, then the high level to subscriber equipment replys positive confirmation message; Otherwise by the time current there is no D2D Discovery message that is to be sent or that sending after, then reply positive confirmation message to the high level of subscriber equipment; The high level of subscriber equipment is after receiving positive confirmation message, and determining that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending.

After the low layer of subscriber equipment receives the information of seeking, judge whether the current number of D2D Discovery message to be sent or that sending is 0, and if so, then the high level to subscriber equipment replys positive confirmation message at once; Otherwise constantly judge according to certain rule whether the number of current D2D Discovery message is 0, once be 0, then the high level to subscriber equipment replys positive confirmation message;

The high level of subscriber equipment is after receiving positive confirmation message, and determining that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending.

Judgment mode three:

The low layer of subscriber equipment current there is no D2D Discovery message that is to be sent or that sending after, the high level to subscriber equipment replys positive confirmation message; The high level of subscriber equipment is after receiving positive confirmation message, and determining that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending.

Concrete, the high level of subscriber equipment does not send to the low layer of subscriber equipment seeks information, but whether the current number of D2D Discovery message to be sent or that sending of the low layer automatic decision of subscriber equipment is 0, once not have, then reports positive confirmation message from trend high level;

The D2D Discovery message sent due to the low layer of subscriber equipment is all send to the low layer of subscriber equipment by the high level of subscriber equipment, so the high level of subscriber equipment is after receiving positive confirmation message, will determine that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending;

If the high level of subscriber equipment has D2D Discovery message when receiving positive confirmation message, then send to the low layer of subscriber equipment, then, before again receiving positive confirmation message, the low layer of default user equipment is current D2D Discovery message that is to be sent or that sending;

If the high level of subscriber equipment does not have D2D Discovery message when receiving positive confirmation message, the D2D Discovery message sent due to the low layer of subscriber equipment is all sent by the high level of subscriber equipment, so before the high level of subscriber equipment has D2D Discovery message, the low layer of subscriber equipment does not all have D2D Discovery message that is to be sent or that sending, so the high level of subscriber equipment the low layer of default user equipment always can not have D2D Discovery message that is to be sent or that sending, after the high level of subscriber equipment has D2D Discovery message, directly can send to the low layer of subscriber equipment, then before again receiving positive confirmation message, the low layer of default user equipment is current D2D Discovery message that is to be sent or that sending.

For above-mentioned judgment mode one ~ judgment mode three, the high level of subscriber equipment is at one time in section, and the low layer to subscriber equipment sends a D2D Discovery message.

If the high level of subscriber equipment has many D2D Discovery message to need to send, the high level of subscriber equipment is according to the quality of service QoS(Quality of Service of each D2D Discovery message, quality of service) parameter, select a D2D Discovery message, and send to the low layer of subscriber equipment the D2DDiscovery message selected.

Concrete, once the positive confirmation message that the low layer that the high level of subscriber equipment receives subscriber equipment is replied, then the low layer to subscriber equipment issues D2D Discovery message and once only can issue a D2DDiscovery message.If the high level of subscriber equipment has multiple many D2D Discovery message to issue simultaneously, so the high level of subscriber equipment can select one of them to issue according to qos parameter.

The D2D Discovery message issued is selected, including, but not limited to following manner according to qos parameter:

The D2DDiscovery message that will issue is selected according to the priority parameters in the qos parameter of D2D Discovery message;

The D2DDiscovery message (rear that general delay parameter value is large) needing to issue is selected according to the delay parameter in the qos parameter of D2D Discovery message;

The D2D Discovery message selecting to issue is combined according to one or more parameter in qos parameter, such as according to the priority of D2D Discovery message and the time delay of D2D Discovery message, and priority and weights corresponding to time delay, determine a transmission parameter value, according to the size sending parameter value, select the D2D Discovery message that will issue.

The high level of control mode two, subscriber equipment controls together with low layer.

Wherein, the high level of subscriber equipment judges have D2D Discovery message to need to send, and determine that the low layer of subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, a D2D Discovery message is selected to send to the low layer of subscriber equipment, with D2D Discovery message transmitted in parallel in the low layer avoiding subscriber equipment at one time section.

The low layer of high level control and subscriber equipment that control mode two comprises subscriber equipment controls.Be introduced respectively below.

One, in control mode two, the high level of subscriber equipment controls:

In control mode two, whether the high level of subscriber equipment judges that the low layer of subscriber equipment is current has D2DDiscovery message different from control mode one, adopt to estimate mode, whether namely the low layer of high level to subscriber equipment of subscriber equipment is current has carrying out that be to be sent or that send to estimate, and does not have message that is to be sent or that sending to judge that the low layer of subscriber equipment is current.

Concrete, the high level of subscriber equipment is once there be D2D Discovery message, then be put into its buffering area, D2D Discovery message that is to be sent or that sending whether is had to estimate to the low layer of subscriber equipment is current, if estimate low layer do not have D2D Discovery message that is to be sent or that sending, then the high level of subscriber equipment takes out a D2D Discovery message and is issued to the low layer of subscriber equipment from its buffering area.

The mode of estimating of the high level of subscriber equipment has a lot.

Such as, estimate based on timer, after receiving a D2D Discovery message, start timer corresponding to this D2DDiscovery message, when this timer expiry, then estimate that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending.

Also such as high-rise introducing controlling mechanism, the interval that control D2D Discovery message sends, only a D2D Discovery message can be sent in certain intervals, once high level receives D2D Discovery message, then estimate that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending.

The high level of subscriber equipment is at one time in section, and the low layer to subscriber equipment sends a D2DDiscovery message.

The D2D Discovery message selecting to issue is combined according to one or more parameter in the qos parameter of D2D Discovery message, such as according to the priority of D2D Discovery message and the time delay of D2DDiscovery message, and priority and weights corresponding to time delay, determine a transmission parameter value, according to the size sending parameter value, select the D2D Discovery message that will issue.

Two, in control mode two, the low layer of subscriber equipment controls:

High level due to subscriber equipment adopts estimates mode, so estimate likely to the high level of subscriber equipment occur mistake, when the D2D Discovery message sent to the low layer of subscriber equipment, the low layer of subscriber equipment is current D2D Discovery message that is to be sent or that sending.

Based on this, the low layer of subscriber equipment is after receiving the D2D Discovery message from high level, D2D Discovery message that is to be sent or that sending is had if current, from the D2D Discovery message received and the current to be sent or D2D Discovery message that sending, select one of them D2DDiscovery message to send, abandon remaining D2D Discovery message.

The low layer of subscriber equipment determines the D2D Discovery message needing to abandon according in following manner:

Abandon mode one, the low layer of subscriber equipment abandons the D2D Discovery message received from high level all the time;

Abandon mode two, the low layer of subscriber equipment abandons the D2DDiscovery message that current low layer is to be sent or sending;

Abandon mode three, subscriber equipment low layer according to the D2D Discovery message received from high level and current low layer to be sent or sending the qos parameter of D2D Discovery message, determine the D2D Discovery message needing to abandon;

Abandon mode four, subscriber equipment low layer according to the D2D Discovery message received from high level and attribute corresponding to current low layer D2D Discovery message to be sent or that sending, abandoning attribute is allow to seize corresponding D2D Discovery message.

For abandoning mode three, the low layer of subscriber equipment is according to the D2D Discovery message received from high level and current low layer is to be sent or the qos parameter of D2D Discovery message that sending, when determining the D2D Discovery message needing to abandon, can:

The D2DDiscovery message needing to abandon is selected according to the priority parameters in the qos parameter of D2D Discovery message; Or

The D2DDiscovery message (large the abandoning of general time delay) needing to abandon is selected according to the delay parameter in the qos parameter of D2D Discovery message; Or

The D2D Discovery message selecting to need to abandon is combined according to one or more parameter in the qos parameter of D2D Discovery message, such as according to the priority of D2D Discovery message and the time delay of D2DDiscovery message, and priority and weights corresponding to time delay, determine a transmission parameter value, according to the size sending parameter value, select the D2D Discovery message needing to abandon.

For abandoning mode four, when the high level of subscriber equipment issues D2D Discovery message, can carry the attribute whether allowing to seize or do not allow to seize, which bar message the low layer of subscriber equipment should abandon according to this determined property.If two message attributes is identical, so can random drop D2D Discovery message, also other can be adopted can to select to abandon the mode of D2D Discovery message, such as when two message attributes are identical, all the time can abandon the D2D Discovery message needing to send, or abandon the current D2D Discovery message had all the time; Also can select according to qos parameter (specifically can see for abandoning mode three).

Preferably, which D2D Discovery message what the low layer of subscriber equipment can also indicate it to abandon to the high level of subscriber equipment is, if the high level of subscriber equipment expects that the D2D Discovery transmission of messages abandoned is successful like this, this D2D Discovery message can be re-issued.

The low layer of control mode three, subscriber equipment controls.

D2D Discovery message, after having D2D Discovery message to need transmission, is sent to the low layer of subscriber equipment by the high level of subscriber equipment;

The D2D Discovery message stores from high level that receives to lower layer buffers district, and selects a D2D Discovery message to send in section by the low layer of subscriber equipment at one time from lower layer buffers district.

Concrete, the high level of subscriber equipment once there be D2D Discovery message generation, is then issued to the low layer of subscriber equipment immediately;

The low layer of subscriber equipment by the high-rise D2D Discovery message stores from subscriber equipment that receives to lower layer buffers district, and according to the D2DDiscovery message sent in scheduling mechanism at one time section in a lower layer buffers district.

In force, scheduling mechanism is divided into centralized dispatching and self scheduling.

Suppose that user terminal selecting D2D Discovery message 1 sends within the time [N1, N2], so:

If adopt self scheduling (namely equipment oneself selects available resources), within the time [N1, N2], can only be D2D Discovery message 1 Resources allocation; It can not be other D2D Discovery message Resources allocation.

If adopt centralized dispatching (namely subscriber equipment needs to Resourse Distribute centralized control node request resource), so only to be used for the transmission of D2D Discovery message 1 to Resourse Distribute centralized control node request resource and by the resource of acquisition for D2D Discovery message 1 at time [N1, N2] interior subscriber equipment.

In force, once the low layer of subscriber equipment is determined to send D2D Discovery message, then the scheduling resource distributed according to network side carries out D2D Discovery transmission of messages.

Arrange respectively for above-mentioned control mode one ~ control mode three below and cite an actual example.Conveniently introduce, high level is hereinafter exactly the high level of subscriber equipment, and low layer is exactly the low layer of subscriber equipment.

Example one, control to avoid D2D Discovery message transmitted in parallel in section at one time by high level

If D2D Discovery message triggers based on business, once high level has certain business (such as advertising business) to trigger D2D Discovery, so high-rise (operation layer or D2D dedicated management layer or NAS layer) just needs first to carry out buffer memory to the D2D Discovery message of generation, then seek to low layer (such as PDCP layer, rlc layer or MAC), to judge whether current low layer has D2D Discovery message that is to be sent or that sending.

Low layer (such as PDCP layer, rlc layer or MAC layer) receive high-rise seek information after, following any one processing mode can be adopted to process:

1, judge whether current D2D Discovery message number is 0 at once, if so, then reply positive confirmation message to high level; Otherwise, reply negative acknowledgement message.After high level receives negative acknowledgement message, according to random wait a period of time, again can seek, until receive positive confirmation message.

2, judge whether D2D Discovery message number that is to be sent or that sending is 0 at once, if so, then reply positive confirmation message to high level; Otherwise, wait for and constantly judge whether D2D Discovery message number that is to be sent or that sending is 0 according to certain rule, once be 0, then replying positive confirmation message to high level.

3, high level does not send to low layer and seeks information, but low layer automatic decision is current whether D2DDiscovery message, once not have, then reports positive confirmation message from trend high level.

Once high level receives the positive confirmation message that low layer is replied, then issue D2D Discovery message to low layer and once only send a D2D Discovery message, if high level has multiple many D2DDiscovery message to issue simultaneously, so high level can select one of them to issue according to some principle, and Specific Principles can be, but not limited to following principle:

According to the D2DDiscovery message that the delay parameter in the qos parameter of D2D Discovery message will issue;

The D2D Discovery message selecting to issue is combined according to one or more parameter in the qos parameter of D2D Discovery message; Such as select to set different weights to priority and time delay, select according to weights.

After low layer receives the D2D Discovery message that high level issues, the scheduling resource according to obtaining carries out D2D Discovery transmission of messages.

Embodiment 2: avoid D2D Discovery message transmitted in parallel in section at one time by high-rise and the combination of low layer co-controlling

If D2D Discovery message triggers based on business, once high level has certain business (such as advertising business) to trigger D2D Discovery, so high-rise (operation layer or D2D dedicated management layer or NAS layer) just needs first to carry out buffer memory to the D2D Discovery message of generation, whether high level estimates low layer D2D Discovery D2D Discovery message to be sent according to certain principle is empty, such as judge based on timer, timer corresponding to this D2D Discovery message is started after receiving a D2D Discovery message, when this timer expiry, then estimate low layer D2D Discovery message to be sent for empty, now high level can take out a D2D Discovery message one and be issued to low layer from its buffering area.If high level has multiple many D2D Discovery message to issue simultaneously, so can issue based on certain selection D2D Discovery message of selecting, Specific Principles can be, but not limited to following principle:

Low layer receives the D2D Discovery message that high level issues, if it also has other D2D Discovery message that is to be sent or that sending, then select to abandon which bar D2D Discovery message according to certain principle, Specific Principles can be but be not limited to several as follows:

Always abandon the D2D Discovery message newly received from high level;

Always abandon the D2D Discovery message that current low layer is to be sent or sending;

The D2D Discovery message that will abandon is selected according to both qos parameters (such as priority, time delay etc.);

When high level issues D2D Discovery message, can carry is seize and be preempted attribute, and which bar message low layer should abandon according to this determined property.If two message attributes is identical, so abandons any bar and depend on that low layer realizes.

Optionally, which D2D Discovery message what low layer can also indicate it to abandon to high level is.

Embodiment 3: control to avoid D2D Discovery message transmitted in parallel in section at one time by low layer

If D2D Discovery message triggers based on business, once high level has certain business (such as advertising business) to trigger D2D Discovery, so high-rise (operation layer or D2D dedicated management layer or NAS layer) just organizes D2D Discovery message, then directly low layer is delivered to, high-rise once there be D2D Discovery message generation, be then issued to low layer (such as PDCP layer, rlc layer or MAC layer) immediately.Low layer will receive D2D Discovery message stores in its lower layer buffers district from high level, be ensured to there will not be parallel D2D Discovery message in the same time period by MAC layer scheduling mechanism:

Suppose a period of time that the same time period refers to, so by scheduling mechanism, low layer ensures that the same time period there will not be the method for parallel D2D Discovery message as follows:

Suppose that terminal selects D2D Discovery message 1 to send within the time [0, N], so:

If adopt self scheduling (namely available resources selected by subscriber equipment oneself), so within the time [0, N], can only be D2D Discovery message 1 Resources allocation; It can not be other D2D Discovery message Resources allocation.

If adopt centralized dispatching (namely subscriber equipment needs to Resourse Distribute centralized control node request resource), so only to be used for the transmission of D2D Discovery message 1 to Resourse Distribute centralized control node request resource and by the resource of acquisition for D2D Discovery message 1 at time [0, N] interior equipment.

Suppose that the same time period refers to one scheduling time unit, a such as subframe, so by scheduling mechanism, low layer ensures that the same time period there will not be the method for parallel D2D Discovery message as follows:

If adopt self scheduling (i.e. equipment oneself select available resources), can be so only a D2D Discovery message selection transfer resource at equipment a subframe.

If adopt centralized dispatching (namely equipment needs to Resourse Distribute centralized control node request resource), so Resourse Distribute Controlling vertex can not be that equipment distributes multiple D2D Discovery resource in same subframe.

Based on same inventive concept, the embodiment of the present invention additionally provides the equipment sending message, the principle of dealing with problems due to the equipment of the embodiment of the present invention is similar to the method for the embodiment of the present invention, therefore the enforcement of the equipment of the embodiment of the present invention see the enforcement of the method for the embodiment of the present invention, can repeat part and repeats no more.

As shown in Figure 3, the equipment that the embodiment of the present invention two sends message comprises:

Determination module 300, needs to send D2D Discovery message for determining;

Control module 310, controls D2D Discovery message in section at one time, to avoid D2D Discovery message transmitted in parallel in the same time period.

Preferably, control module 310 specifically comprises:

Be in the first high-rise module 3100 of subscriber equipment high level, D2D Discovery message is had to need to send for judging, and determine that the low layer of subscriber equipment is current and there is no D2DDiscovery message that is to be sent or that sending, a D2D Discovery message is selected to send to the low layer of subscriber equipment, with D2D Discovery message transmitted in parallel in the low layer avoiding described subscriber equipment at one time section;

Be in the first modules at lower layers 3110 of subscriber equipment low layer, for sending D2D Discovery message.

Preferably, the first high-rise module 3100 specifically for: to subscriber equipment low layer send seeks information; After receiving positive confirmation message, determine that the low layer of subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, after receiving nack message, determining that the low layer of subscriber equipment is current has D2D Discovery message that is to be sent or that sending; First modules at lower layers 3110 specifically for: after receiving the information of seeking, there is no D2D Discovery message that is to be sent or that sending if current, then to subscriber equipment high level reply positive confirmation message; Otherwise, reply negative acknowledgement message to the high level of subscriber equipment; Or

First high-rise module 3100 specifically for: to subscriber equipment low layer send seeks information; After receiving positive confirmation message, determining that the low layer of subscriber equipment is current does not have D2DDiscovery message that is to be sent or that sending; First modules at lower layers 3110 specifically for: after receiving the information of seeking, there is no D2D Discovery message that is to be sent or that sending if current after, then to subscriber equipment high level reply positive confirmation message; Otherwise by the time current there is no D2D Discovery message that is to be sent or that sending after, then reply positive confirmation message to the high level of subscriber equipment; Or

First high-rise module 3100 specifically for: after receiving positive confirmation message, determining that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending; First modules at lower layers 3110 specifically for: current there is no D2D Discovery message that is to be sent or that sending after, to subscriber equipment high level reply positive confirmation message.

Preferably, the first high-rise module 3100 specifically for:

Whether there is carrying out that be to be sent or that send to estimate to the low layer of subscriber equipment is current, there is no message that is to be sent or that sending to judge that the low layer of subscriber equipment is current.

Preferably, the first modules at lower layers 3110 specifically for:

Preferably, the first modules at lower layers 3110 specifically for, determine the D2D Discovery message needing to abandon according in following manner:

Abandon the D2D Discovery message received from high level; Or

Abandon the D2D Discovery message that current low layer is to be sent or sending; Or

According to the D2D Discovery message received from high level and current low layer to be sent or sending the qos parameter of D2D Discovery message, determine the D2D Discovery message needing to abandon; Or

According to the D2D Discovery message received from high level and attribute corresponding to current low layer D2D Discovery message to be sent or that sending, abandoning attribute is allow to seize corresponding D2D Discovery message.

Preferably, the first modules at lower layers 3110 also for, by the high level of D2D Discovery message informing subscriber equipment abandoned.

Preferably, the first high-rise module 3100 specifically for:

If there are many D2D Discovery message to need to send, according to the qos parameter of each D2D Discovery message, select a D2D Discovery message, and send to the low layer of subscriber equipment the D2DDiscovery message selected.

Preferably, control module specifically comprises:

Be in the second high-rise module 3120 of subscriber equipment high level, for after having D2D Discovery message to need transmission, D2D Discovery message sent to the low layer of subscriber equipment;

Be in the second modules at lower layers 3130 of subscriber equipment low layer, for the D2DDiscovery message stores from high level that will receive to lower layer buffers district, and from lower layer buffers district, select a D2D Discovery message to send in section at one time.

Preferably, the high level of subscriber equipment be following in one:

Operation layer, D2D dedicated management layer and NAS;

The low layer of subscriber equipment be following in one:

PDCP layer, rlc layer and MAC layer.

Preferably, the same time period be one scheduling time unit or one section of duration.

As shown in Figure 4, the equipment that the embodiment of the present invention three sends message comprises:

Processor 400, needing to send D2D Discovery message for determining, controlling, to avoid by transmitted in parallel D2D Discovery message in processor 400 at one time section at one time in section to D2D Discovery message;

Transceiver 410, for receiving and sending data under the control of processor 400.

Preferably, processor 400 specifically comprises:

Be in the first processor 4000 of subscriber equipment high level, D2D Discovery message is had to need to send for judging, and determine that the low layer of subscriber equipment is current and there is no D2DDiscovery message that is to be sent or that sending, a D2D Discovery message is selected to send to the low layer of subscriber equipment, with D2D Discovery message transmitted in parallel in the low layer avoiding described subscriber equipment at one time section;

Be in the second processor 4010 of subscriber equipment low layer, for sending D2D Discovery message.

Preferably, first processor 4000 specifically for: to subscriber equipment low layer send seeks information; After receiving positive confirmation message, determine that the low layer of subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, after receiving nack message, determining that the low layer of subscriber equipment is current has D2D Discovery message that is to be sent or that sending; Second processor 4010 specifically for: after receiving the information of seeking, there is no D2D Discovery message that is to be sent or that sending if current, then to subscriber equipment high level reply positive confirmation message; Otherwise, reply negative acknowledgement message to the high level of subscriber equipment; Or

First processor 4000 specifically for: to subscriber equipment low layer send seeks information; After receiving positive confirmation message, determining that the low layer of subscriber equipment is current does not have D2DDiscovery message that is to be sent or that sending; Second processor 4010 specifically for: after receiving the information of seeking, there is no D2D Discovery message that is to be sent or that sending if current after, then to subscriber equipment high level reply positive confirmation message; Otherwise by the time current there is no D2D Discovery message that is to be sent or that sending after, then reply positive confirmation message to the high level of subscriber equipment; Or

First processor 4000 specifically for: after receiving positive confirmation message, determining that the low layer of subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending; Second processor 4010 specifically for: current there is no D2D Discovery message that is to be sent or that sending after, to subscriber equipment high level reply positive confirmation message.

Preferably, first processor 4000 specifically for:

Preferably, the second processor 4010 specifically for:

Preferably, the second processor 4010 specifically for, determine the D2D Discovery message needing to abandon according in following manner:

Abandon the D2D Discovery message received from high level; Or

Preferably, the second processor 4010 also for, by the high level of D2D Discovery message informing subscriber equipment abandoned.

Preferably, first processor 4000 specifically for:

Preferably, processor 400 specifically comprises:

Be in the 3rd processor 4020 of subscriber equipment high level, for after having D2D Discovery message to need transmission, D2D Discovery message sent to the low layer of subscriber equipment;

Be in the four-processor 4030 of subscriber equipment low layer, for the D2DDiscovery message stores from high level that will receive to lower layer buffers district, and from lower layer buffers district, select a D2D Discovery message to send in section at one time.

Preferably, the high level of subscriber equipment be following in one:

Operation layer, D2D dedicated management layer and NAS;

The low layer of subscriber equipment be following in one:

PDCP layer, rlc layer and MAC layer.

Wherein, in the diagram, bus architecture can comprise interconnected bus and the bridge of any amount, and the various electrical chains of the memory that the one or more processor specifically comprised by processor 400 and memory 420 comprise are connected together.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus architecture, and these are all known in the field, therefore, are no longer described further it herein.Bus interface provides interface.Transceiver 410 can be multiple element, namely comprises transmitter and receiver, is provided for the unit communicated with other devices various over a transmission medium.For different subscriber equipmenies, user interface 430 can also be can external in connect the interface needing equipment, the equipment of connection includes but not limited to keypad, display, loud speaker, microphone, joystick etc.

Processor 400 is in charge of bus architecture and common process, and memory 420 can the data that use when executable operations of storage of processor 400.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims

1. send a method for message, it is characterized in that, described method comprises:

2. the method for claim 1, is characterized in that, described subscriber equipment at one time interior control of section sends D2D Discovery message, comprising:

3. method as claimed in claim 2, is characterized in that, by a kind of in following manner, the high level of described subscriber equipment judges that the low layer of described subscriber equipment is current does not have D2D Discovery message that is to be sent or that sending:

4. method as claimed in claim 2, it is characterized in that, by following manner, the high level of described subscriber equipment judges that the low layer of described subscriber equipment is current does not have D2DDiscovery message that is to be sent or that sending:

5. method as claimed in claim 4, is characterized in that, the high level of described subscriber equipment also comprises after described D2D Discovery message is sent to the low layer of described subscriber equipment:

6. method as claimed in claim 5, it is characterized in that, the low layer of described subscriber equipment determines the D2D Discovery message needing to abandon according in following manner:

7. method as claimed in claim 5, is characterized in that, the low layer of described subscriber equipment also comprises after abandoning remaining D2D Discovery message:

8. method as claimed in claim 2, it is characterized in that, D2DDiscovery message is sent to the low layer of described subscriber equipment by the high level of described subscriber equipment, comprising:

9. the method for claim 1, is characterized in that, described subscriber equipment at one time interior control of section sends D2D Discovery message, comprising:

10. the method as described in as arbitrary in claim 1 ~ 9, is characterized in that, the high level of described subscriber equipment be following in one:

The low layer of described subscriber equipment be following in one:

11. as arbitrary in claim 1 ~ 9 as described in method, it is characterized in that, the described same time period be one scheduling time unit or one section of duration.

12. 1 kinds of subscriber equipmenies sending message, it is characterized in that, described subscriber equipment comprises:

13. subscriber equipmenies as claimed in claim 12, it is characterized in that, described control module specifically comprises:

14. subscriber equipmenies as claimed in claim 13, is characterized in that, described first high-rise module specifically for: to described subscriber equipment low layer send seeks information; After receiving described positive confirmation message, determine that the low layer of described subscriber equipment is current and there is no D2D Discovery message that is to be sent or that sending, after receiving described nack message, determining that the low layer of described subscriber equipment is current has D2D Discovery message that is to be sent or that sending; Described first modules at lower layers specifically for: after seeking information described in receiving, there is no D2D Discovery message that is to be sent or that sending if current, then to described subscriber equipment high level reply positive confirmation message; Otherwise, reply negative acknowledgement message to the high level of described subscriber equipment; Or

15. subscriber equipmenies as claimed in claim 13, is characterized in that, described first high-rise module specifically for:

16. subscriber equipmenies as claimed in claim 15, is characterized in that, described first modules at lower layers specifically for:

17. subscriber equipmenies as claimed in claim 16, is characterized in that, described first modules at lower layers specifically for, determine the D2D Discovery message needing to abandon according in following manner:

Abandon the D2D Discovery message received from high level; Or

18. subscriber equipmenies as claimed in claim 16, is characterized in that, described first modules at lower layers also for, by the high level of subscriber equipment described in the D2D Discovery message informing that abandons.

19. subscriber equipmenies as claimed in claim 13, is characterized in that, described first high-rise module specifically for:

20. subscriber equipmenies as claimed in claim 12, it is characterized in that, described control module specifically comprises:

21. as arbitrary in claim 12 ~ 20 as described in subscriber equipment, it is characterized in that, the high level of described subscriber equipment be following in one:

The low layer of described subscriber equipment be following in one:

22. as arbitrary in claim 12 ~ 20 as described in subscriber equipment, it is characterized in that, the described same time period be one scheduling time unit or one section of duration.