CN103391618A

CN103391618A - Subframe configuration method and device

Info

Publication number: CN103391618A
Application number: CN2012101420400A
Authority: CN
Inventors: 袁明; 毕峰; 吴栓栓; 梁枫
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-05-09
Filing date: 2012-05-09
Publication date: 2013-11-13

Abstract

The invention discloses a subframe configuration method and device. The device comprises the step that a base station determines a backhaul subframe and configuration information in access to the subframe according to a preset parameter. The configuration information comprises the overhaul subframe and an index number of an OFDM symbol in access to the start and the end of the subframe, the preset parameter comprises at least one of a symbolic number occupied by physical downlink control information sent by the base station, a bearing mode of a downlink control channel of an LS wireless device on a backhaul link, a bearing mode of the downlink control channel of the LS wireless device on an access link, and the parameter whether the cooperative transmission is carried out between the base station and the LS wireless device or not. The base station informs the LS wireless device of the backhaul subframe and the configuration information in access to the subframe. The subframe configuration method and device can avoid the interference between cellular communications and LS wireless device communications.

Description

Sub-frame configuration method and device

Technical field

The present invention relates to the communications field, in particular to a kind of sub-frame configuration method and device.

Background technology

Along with the development of Mobile Communication Service and technology, the bandwidth demand that mobile communication system evolution brings continues to increase, and the distribution of bandwidth becomes more and more crowded.But because the frequency spectrum resource that can be used for mobile communication is very limited, so the bandwidth that can be assigned to can not meet the demand of real system.For reduce that bandwidth provides and bandwidth demand between difference, the bandwidth that more effective utilization distributes just becomes very important.

, for improving wireless frequency spectrum efficiency and better supporting these two primary demands of emerging localized business, at present, introduced a kind of local service (LS, Local Server) scheme in correlation technique.In the communication network with LS wireless device, as shown in Figure 1, user (L-UE) and the link between the LS wireless device that the LS wireless device participates in service are called as access link (Access Link), link between LS wireless device and macro cell base station (Macro eNB) is called as back haul link (Backhaul Link), macro cell base station participates in the user (macrocell UE, macro UE) of service and the link between base station is called as the link that direct transfers (Direct Link).

By dispose the LS wireless device in the Cellular Networks residential quarter, can serve enhancing to regional area in residential quarter, and with the service of extremely low cost realization towards this locality.In addition, can also continue to use structure and the design of existing heterogeneous network (Hetnet, heterogeneous network), reduce interference, optimizing power consumption, guarantee systematic function and backward compatibility comprehensively, and fully excavate the advantage of localised transmission., because the LS wireless device possesses the back haul link of eating dishes without rice or wine (backhaul link), therefore have powerful flexibility and low cost.And for different application scenarioss, backhaul link can optionally support chain of command or user's face, perhaps even can not have backhaul link link.In addition, Local server compares with the LTE-Direct isotype, is easier to realize the monitoring of operator to network.

This shows, the LS wireless device technology not only can be used for extension and the reinforcement of legacy cellular network service, more can rely on the characteristics of its transmission means, to the user, provides more abundant value-added service, becomes an important supplement of legacy cellular business.At present, after the LS wireless device technology is introduced the LTE/LTE-A communication system, the receive mode of the down control channel of LS wireless device self, and the LS wireless device is the radiation pattern that its subordinate UE sends down control channel, all likely changes the subframe structure of existing backhaul subframe and access subframe.Yet in correlation technique, base station can not configure backhaul subframe and the access subframe of back haul link and access link use at present, thereby may cause the interference between cellular communication and LS wireless device communication.

Summary of the invention

Can not configure backhaul subframe and the access subframe problem of back haul link and access link use for the base station in correlation technique, the invention provides a kind of sub-frame configuration method and device, to address the above problem at least.

according to an aspect of the present invention, a kind of sub-frame configuration method is provided, comprise: the configuration information of backhaul subframe and access subframe is determined in base station according to predefined parameter, wherein, described configuration information comprises: the initial sum of described backhaul subframe and described access subframe stops the call number of orthogonal frequency division multiplex OFDM symbol, described backhaul subframe is used for the back haul link transmission between described base station and local service LS wireless device, described access subframe is used for the access link transmission between described LS wireless device and subscriber equipment, described predefined parameter comprise following one of at least: the shared symbolic number of physical down control information PDCCH that described base station sends, the bearing mode of the down control channel of described LS wireless device on back haul link, the bearing mode of the down control channel of described LS wireless device on access link, and whether carry out cooperation transmission between described base station and described LS wireless device, described base station notifies the described configuration information of described backhaul subframe and access subframe to described LS wireless device.

Preferably, when described base station and described LS wireless device carry out cooperation transmission, described base station determines that the configuration information of backhaul subframe and access subframe comprises: under normal cyclic prefix CP, described base station determine the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot s lot be 0 or

The call number that stops the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5 or 6; Perhaps, under expansion CP, described base station determine the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 4 or 5; Wherein,

It is the shared symbolic number of PDCCH that described base station eNB sends.

Preferably, be not that its subordinate's user equipment (UE) sends PDCCH on described access link when described LS wireless device, and when described LS wireless device does not receive from the PDCCH of described base station on back haul link, the described configuration information that described base station is determined is: under normal CP, the call number of described backhaul subframe and the described access subframe initial OFDM symbol on the 1st slot is

The call number that stops the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of described access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 6; Perhaps, under expansion CP, the call number of described backhaul subframe and the described access subframe initial OFDM symbol on the 1st slot is:

The call number that stops the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of described access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5.

Preferably, be not that its subordinate UE sends PDCCH on described access link when described LS wireless device, and when described LS wireless device receives from the PDCCH of described base station on described back haul link, the described configuration information that described base station is determined is: under normal CP, the call number that described backhaul subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and described access subframe in the call number of the initial OFDM symbol of the 1st slot is

The call number that stops the OFDM symbol is 6, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 5; Perhaps, the call number that under expansion CP, described backhaul subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 5, and described access subframe in the call number of the initial OFDM symbol of the 1st slot is: The call number that stops the OFDM symbol is 5, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 4.

Preferably, when described LS wireless device is that its subordinate UE sends PDCCH on access link, and when described LS wireless device does not receive from the PDCCH of base station on back haul link, the described configuration information that described base station is determined is: under normal CP, described backhaul subframe in the call number of the initial OFDM symbol of the 1st slot is

The call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 6; Perhaps, under expansion CP, described backhaul subframe in the call number of the initial OFDM symbol of the 1st slot is

The call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 5, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 4, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 5.

Preferably, when described LS wireless device is that its subordinate UE sends PDCCH on access link, and when described LS wireless device receives from the PDCCH of base station on back haul link, the described configuration information that described base station is determined is: under normal CP, the call number that described backhaul subframe and described access subframe be 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of described access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5; Perhaps, under expansion CP, the call number that described backhaul subframe and described access subframe be 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 4.

Preferably, when not carrying out cooperation transmission between described LS wireless device and described base station, described base station determines that the configuration information of backhaul subframe and access subframe comprises: under normal CP, described base station determine the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 6, the call number of the initial OFDM symbol of described access subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 6, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 6, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 6; The expansion CP under, described base station determine the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 5, the call number of the initial OFDM symbol of described access subframe on the 1st slot be 0 or The call number that stops the OFDM symbol is 5, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 5, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 5; Wherein,

Preferably, be not that its subordinate UE sends PDCCH on access link when described LS wireless device, and described LS wireless device receives the PDCCH from base station on back haul link, described LS wireless device carries out timing adjustment to emission, the described configuration information that described base station is determined is: under normal CP, the call number that the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot is 0, stop the OFDM symbol is 6, and the call number of the initial OFDM symbol of described access subframe on the 1st slot is

The call number that stops the OFDM symbol is 6, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 6, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 6; Perhaps, under expansion CP, the call number that the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot is 0, stop the OFDM symbol is 5, the call number of the initial OFDM symbol on the 1st slot of described access subframe is, the call number of termination OFDM symbol is 5, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 5, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 5.

Preferably, when described LS wireless device is that its subordinate UE sends PDCCH on access link, and described LS wireless device does not receive PDCCH from base station on back haul link, when described LS wireless device carries out timing adjustment to emission, the described configuration information that described base station is determined is: under normal CP, described backhaul subframe in the call number of the initial OFDM symbol of the 1st slot is The call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 6; Perhaps, under expansion CP, described backhaul subframe in the call number of the initial OFDM symbol of the 1st slot is

The call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 5, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the start bit OFDM symbol of the 2nd slot, stop the OFDM symbol is 5.

Preferably, described base station notifies the described configuration information of described backhaul subframe and access subframe to described LS wireless device, comprising: described base station is notified the described configuration information of described backhaul subframe and access subframe to described LS wireless device by radio resource control RRC high-level signaling or broadcast signaling.

Preferably, after described base station was notified the described configuration information of described backhaul subframe and access subframe to described LS wireless device, described method also comprised: described LS wireless device carries out the transmission of back haul link and access link according to the described configuration information of described backhaul subframe and access subframe.

according to another aspect of the present invention, a kind of sub-frame configuration device also is provided, comprise: determination module, be used for determining according to predefined parameter the configuration information of backhaul subframe and access subframe, wherein, described configuration information comprises: the initial sum of described backhaul subframe and described access subframe stops the call number of orthogonal frequency division multiplex OFDM symbol, described backhaul subframe is used for the back haul link transmission between described base station and local service LS wireless device, described access subframe is used for the access link transmission between described LS wireless device and subscriber equipment, described predefined parameter comprise following one of at least: the shared symbolic number of physical down control information PDCCH that described base station sends, the bearing mode of the down control channel of described LS wireless device on back haul link, the bearing mode of the down control channel of described LS wireless device on access link, and whether carry out cooperation transmission between described base station and described LS wireless device, notification module, be used for the described configuration information of described backhaul subframe and access subframe is notified to described LS wireless device.

Preferably, when described base station and described LS wireless device carry out cooperation transmission, the described configuration information of the described backhaul subframe that described determination module is determined and access subframe comprises: under normal cyclic prefix CP, the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 1st slot s lot be 0 or The call number that stops the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5 or 6; Perhaps, under expansion CP, the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot be 0 or

Preferably, when not carrying out cooperation transmission between described LS wireless device and described base station, the described configuration information of the described backhaul subframe that described determination module is determined and access subframe comprises: under normal CP, the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 6, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 6, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 6; The expansion CP under, the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

by the present invention, base station is according to predefined parameter, determine the configuration information of backhaul (backhaul) subframe and access (access) subframe of LS wireless device, and the configuration information of the backhaul that will determine (backhaul) subframe and access (access) subframe is notified the wireless device to LS, the transmission problem of the control of the business of backhaul subframe and access subframe when having solved cellular communication and LS wireless device communication and coexisting, avoided the interference between cellular communication and LS wireless device communication, in the efficiency that guarantees communication and reliability, improved the utilance of system resource.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not form improper restriction of the present invention.In the accompanying drawings:

Fig. 1 is the network diagram according to the wireless device communication of the LS based on Cellular Networks of correlation technique;

Fig. 2 is the frame structure schematic diagram of the LTE/LTE-A under normal cyclic prefix (CP);

Fig. 3 is that the Resource Block of LTE/LTE-A and the structure of subcarrier are crossed schematic diagram;

Fig. 4 is a kind of configuration schematic diagram of LS subframe structure;

Fig. 5 is the structural representation according to the sub-frame configuration device of the embodiment of the present invention;

Fig. 6 is the flow chart according to the sub-frame configuration method of the embodiment of the present invention;

The configuration schematic diagram of the subframe structure when Fig. 7 is LS emission timing advance;

Fig. 8 is the configuration schematic diagram that LS launches the subframe structure while regularly postponing.

Embodiment

Hereinafter with reference to accompanying drawing, also describe in conjunction with the embodiments the present invention in detail.Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.

The embodiment of the present invention, for after introducing the local service wireless device in existing LTE/LTE-A system, especially supports the situation of user's face to propose a kind of sub-frame configuration scheme for backhaul link.By the present invention, backhaul subframe and the business of access subframe and the transmission problem of control in the time of can solving cellular communication and LS wireless device communication and coexist, avoided the interference between cellular communication and LS wireless device communication, both guarantee communication efficiency and reliability, also improved the resource utilization of system simultaneously.

Long Term Evolution (Long Term Evolution, LTE) system, senior Long Term Evolution (LTE-Advanced, LTE-A) system and IMT-Advanced (International Mobile Telecommunication Advanced, IMT-Advanced) system is all take OFDM (Orthogonal Frequency Division Multiplexing, OFDM) technology as basis.Be the data of time-frequency bidimensional in ofdm system, the radio frames of a 10ms (frame) is comprised of 10 subframes, and 1 subframe (subframe) is comprised of 2 time slots (slot), normal cyclic prefix (Cyclic Prefix, CP) time, each slot is comprised of 7 OFDM symbols; Expansion CP(Extended CP) time, each slot is comprised of 6 OFDM symbols, as shown in Figure 2.Wherein, a Resource Block (Resource Block, RB) is by 12 or 24 subcarriers continuous on frequency domain, and on time domain, all the OFDM symbols in continuous 1 time slot form; Resource Block is to (Resource Block pair, RB pair) by 12 or 24 subcarriers continuous on frequency domain, and on time domain, all the OFDM symbols in continuous 1 subframe form.Physical Downlink Control Channel (Physical Downlink Control Channel, PDCCH) takies

front

1 or 2 or 3 or 4 OFDM symbol of 1 subframe on time domain, take the whole system bandwidth on frequency domain; Physical Downlink Shared Channel (Physical Downlink Shared Channel, PDSCH) takies all remaining OFDM symbols except the OFDM symbol that PDCCH takies in 1 subframe on time domain, take several PRB on frequency domain, as shown in Figure 3.

Concerning the LS wireless device; due to the existence at a transmitting-receiving/receipts protection interval, it can take the some symbolic numbers in backhaul subframe or access subframe, therefore; the available symbols number of transfer of data will reduce accordingly, and then need to change the subframe structure of LS wireless device.

For example, suppose propagation delay (backhaul time delay) between eNB and LS wireless device: T _PbPropagation delay between LS wireless device and UE (access time delay): T _PaPropagation delay between eNB and UE (direct time delay): T _pdProtection interval: G is received in sending out of LS wireless device _P1Transmitting-receiving protection interval: the G of LS wireless device _P2.Wherein, propagation delay is directly proportional to distance.Take the distance between UE and eNB greater than the distance between UE and LS wireless device as example, in order to guarantee that the UE end receives the data from eNB and LS wireless device simultaneously on access subframe (n+1), the LS wireless device need to be adjusted its emission regularly, namely than eNB, postpones (T _Pd-T _Pa) launch, as shown in Figure 4.

During from backhaul subframe n to access subframe (n+1), the transmitting-receiving of LS wireless device protection interval G _P2Can take front 1 or a plurality of OFDM symbol of access subframe (n+1), perhaps last 1 of backhaul subframe n or a plurality of OFDM symbol.

During from access subframe (n+1) to backhaul subframe (n+2), protection interval G is received in sending out of LS wireless device _P1Can take last 1 or a plurality of OFDM symbol of access subframe (n+1), perhaps front 1 of backhaul subframe (n+2) or a plurality of OFDM symbol.

One or more the parameter whether shared symbolic number of PDCCH that the LS wireless device can be sent by eNB with the initial sum final position of OFDM symbol, LS wireless device carry out at bearing mode, LS wireless device and the eNB of the bearing mode of the down control channel on backhaul link, the down control channel of LS wireless device on access link in these several parameters of descending timing relationship of cooperation transmission and LS wireless device determines.Based on this, the embodiment of the present invention provides a kind of sub-frame configuration scheme, to solve the problem that exists in correlation technique.

Fig. 5 is the structural representation according to the sub-frame configuration device of the embodiment of the present invention, and this device can be arranged on base station (eNB) side, is used to LS wireless device configuration backhaul subframe and access subframe.As shown in Figure 5, this device mainly comprises: determination module 10, be used for determining according to predefined parameter the configuration information of backhaul subframe and access subframe, wherein, described configuration information comprises: the initial sum of described backhaul subframe and described access subframe stops the call number of orthogonal frequency division multiplex OFDM symbol, described backhaul subframe is used for the back haul link transmission between described base station and local service LS wireless device, and described access subframe is used for the access link transmission between described LS wireless device and subscriber equipment; Notification module 20,, with determination module 10 couplings, be used for the described configuration information of described backhaul subframe and access subframe is notified to described LS wireless device.

The said apparatus that provides by the embodiment of the present invention, by being the structure of LS wireless device configuration backhaul subframe and access subframe, solved communicate by letter with the LS transmission problem of business and control while coexisting of cellular communication, avoided the interference between cellular communication and LS communication, both guarantee communication efficiency and reliability, also improved the resource utilization of system simultaneously

In a preferred implementation of the embodiment of the present invention, described predefined parameter include but not limited to following one of at least: whether the shared symbolic number of physical down control information PDCCH that described base station sends, described LS wireless device carry out cooperation transmission at the bearing mode of the down control channel on back haul link, described LS wireless device between the bearing mode of the down control channel on access link and described base station and described LS wireless device.

In a preferred implementation of the invention process row, when described base station and described LS wireless device carry out cooperation transmission, the described configuration information of the described backhaul subframe that described determination module is determined and access subframe comprises: under normal cyclic prefix CP, the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 1st slot s lot be 0 or

The call number that stops the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5 or 6; Perhaps, under expansion CP, the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 4 or 5; Wherein, It is the shared symbolic number of PDCCH that described base station eNB sends.

Perhaps, in another preferred implementation of the embodiment of the present invention, when not carrying out cooperation transmission between described LS wireless device and described base station, the described configuration information of the described backhaul subframe that described determination module 10 is determined and access subframe comprises: under normal CP, the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

According to the embodiment of the present invention, a kind of sub-frame configuration method also is provided, the method can realize by above-mentioned sub-frame configuration device.

Fig. 6 is the flow chart according to the sub-frame configuration method of the embodiment of the present invention, and as shown in Figure 6, the method mainly comprises the following steps (step S602-step S604):

Step S602, the configuration information of backhaul subframe and access subframe is determined in base station according to predefined parameter, wherein, described configuration information comprises: the initial sum of described backhaul subframe and described access subframe stops the call number of OFDM symbol, described backhaul subframe is used for the back haul link transmission between described base station and LS wireless device, and described access subframe is used for the access link transmission between described LS wireless device and subscriber equipment;

Wherein, described predefined parameter include but not limited to following one of at least: whether the shared symbolic number of PDCCH that described base station sends, described LS wireless device carry out cooperation transmission at the bearing mode of the down control channel on back haul link, described LS wireless device between the bearing mode of the down control channel on access link and described base station and described LS wireless device.

Step S604, described base station notifies the described configuration information of described backhaul subframe and access subframe to described LS wireless device.

For example, (RRC) high-level signaling can be controlled by Radio Resource in base station or broadcast signaling notifies the described configuration information of described backhaul subframe and access subframe to described LS wireless device.

The LS wireless device after receiving the notice of base station, can carry out the transmission of back haul link and access link according to the described configuration information of described backhaul subframe and access subframe.

said method by the embodiment of the present invention, base station is according to predefined parameter, determine the configuration information of backhaul (backhaul) subframe and access (access) subframe of LS wireless device, and the configuration information of the backhaul that will determine (backhaul) subframe and access (access) subframe is notified the wireless device to LS, the transmission problem of the control of the business of backhaul subframe and access subframe when having solved cellular communication and LS wireless device communication and coexisting, avoided the interference between cellular communication and LS wireless device communication, in the efficiency that guarantees communication and reliability, improved the utilance of system resource.

In the preferred implementation of the embodiment of the present invention, base station can be according to current information, and the structure for LS wireless device configuration backhaul subframe and access subframe, below be described respectively.

(1) when carrying out cooperation transmission between eNB and wireless device

In this case, base station is that the backhaul subframe of LS wireless device and the subframe structure of access sub-frame configuration are:

Under normal CP, the call number of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is: 0 or

The call number that stops the OFDM symbol is 6.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 0; The call number that stops the OFDM symbol is: 5 or 6.The expansion CP under, the call number of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is: 0 or

The call number that stops the OFDM symbol is 5.The call number of the backhaul subframe of LS wireless device and the access subframe initial OFDM symbol on the 2nd slot is: 0; The call number that stops the OFDM symbol is: 4 or 5.Wherein,

It is the shared symbolic number of PDCCH that eNB sends.

Further, can whether be that its subordinate UE sends PDCCH and whether the LS wireless device receives the subframe structure that further configures backhaul subframe and the access subframe of LS wireless device from the PDCCH of base station on backhaul link on access link according to the LS wireless device.

In a preferred implementation of the embodiment of the present invention, when for its subordinate UE, not sending PDCCH and LS wireless device do not receive PDCCH from base station on backhaul link on access link, the configuration information of the backhaul subframe that base station is determined and access subframe is when the LS wireless device:

Under normal CP, the call number of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is: The call number that stops the OFDM symbol is 6.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 0; The call number that stops the OFDM symbol is: 6.

Under expansion CP, the call number of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is:

The call number that stops the OFDM symbol is 5.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 0; The call number that stops the OFDM symbol is: 5.

In another preferred implementation of the embodiment of the present invention, when the LS wireless device on access link be not its subordinate UE when sending PDCCH and LS wireless device receiving PDCCH from base station on backhaul link, the backhaul subframe that base station is determined and the configuration information that accesses subframe are:

Under normal CP, the original position of the 1st slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 6.The original position of the 2nd slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 6.

Under expansion CP, the original position of the 1st slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 5.The original position of the 2nd slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 5.

Under normal CP, the call number of the initial OFDM symbol of the 1st slot of the access subframe of LS wireless device is:

Stopping the OFDM symbol is to be last 1 OFDM symbol of the 1st slot of subframe, and namely the call number of OFDM symbol is 6.The call number of the initial OFDM symbol of the 2nd slot of the access subframe of LS wireless device is: 0, and stopping the OFDM symbol is to be the second-to-last OFDM symbol of the 2nd slot of subframe, namely the call number of OFDM symbol is 5.

Under expansion CP, the call number of the initial OFDM symbol of the 1st slot of the access subframe of LS wireless device is:

Stopping the OFDM symbol is to be last 1 OFDM symbol of the 1st slot of subframe, and namely the call number of OFDM symbol is 5.The call number of the initial OFDM symbol of the 2nd slot of the access subframe of LS wireless device is: 0, and stopping the OFDM symbol is to be the second-to-last OFDM symbol of the 2nd slot of subframe, namely the call number of OFDM symbol is 4.

In another preferred implementation of the embodiment of the present invention, when sending PDCCH and LS wireless device do not receive PDCCH from base station on backhaul link for its subordinate UE on access link, the configuration information of the backhaul subframe that base station is determined and access subframe is when the LS wireless device:

Under normal CP, the call number of the initial OFDM symbol of the 1st slot of the backhaul subframe of LS wireless device is:

Stopping the OFDM symbol is to be last 1 OFDM symbol of the 1st slot of subframe, and namely the call number of OFDM symbol is 6.The call number of the initial OFDM symbol of the 2nd slot of the backhaul subframe of LS wireless device is: 0, and stopping the OFDM symbol is to be the second-to-last OFDM symbol of the 2nd slot of subframe, namely the call number of OFDM symbol is 5.

Under expansion CP, the call number of the initial OFDM symbol of the 1st slot of the backhaul subframe of LS wireless device is:

Stopping the OFDM symbol is to be last 1 OFDM symbol of the 1st slot of subframe, and namely the call number of OFDM symbol is 5.The call number of the initial OFDM symbol of the 2nd slot of the backhaul subframe of LS wireless device is: 0, and stopping the OFDM symbol is to be the second-to-last OFDM symbol of the 2nd slot of subframe, namely the call number of OFDM symbol is 4.

Under normal CP, the original position of the 1st slot of the access subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 6.The original position of the 2nd slot of the access subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 6.

Under expansion CP, the original position of the 1st slot of the access subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 5.The original position of the 2nd slot of the access subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 5.

In another preferred implementation of the embodiment of the present invention, when the LS wireless device on access link is being its subordinate UE when sending PDCCH and LS wireless device receiving PDCCH from base station on backhaul link, the backhaul subframe that base station is determined and the configuration information that accesses subframe are:

Under normal CP, the initial OFDM symbol of the 1st slot of the backhaul subframe of LS wireless device and access subframe is always: the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Stop the OFDM symbol and be always last 1 OFDM symbol, namely the call number of OFDM symbol is 6.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 0; The call number that stops the OFDM symbol is: 5.

Under expansion CP, the initial OFDM symbol of the 1st slot of the backhaul subframe of LS wireless device and access subframe is always: the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Stop the OFDM symbol and be always last 1 OFDM symbol, namely the call number of OFDM symbol is 5.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 0; The call number that stops the OFDM symbol is: 4.

(2) when not carrying out cooperation transmission between LS wireless device and eNB

In this case, the subframe structure of the backhaul of LS wireless device and access is configured to:

Under normal CP, the call number of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device is: 0 or

The call number that stops the OFDM symbol is 6.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device is: 0; The call number that stops the OFDM symbol is: 6.

The expansion CP under, the call number of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device is: 0 or

The call number that stops the OFDM symbol is 5.The call number of the initial OFDM symbol on the 2nd slot of the backhaul subframe of LS wireless device is: 0; The call number that stops the OFDM symbol is: 5.

Under normal CP, the call number of the initial OFDM symbol on the 1st slot of the access subframe of LS wireless device be 0 or

The call number that stops the OFDM symbol is 6.The call number of the initial OFDM symbol on the 2nd slot is: 0; The call number that stops the OFDM symbol is: 6.

The expansion CP under, the call number of the initial OFDM symbol on the 1st slot of the access subframe of LS wireless device be 0 or

The call number that stops the OFDM symbol is 5.The call number of the initial OFDM symbol on the 2nd slot is: 0; The call number that stops the OFDM symbol is: 5.

Further, can be whether that to send PDCCH, LS wireless device be stagnant reception to its subordinate UE on backhaul link whether launch timing adjustment from the PDCCH of base station and LS wireless device and configure on access link according to the LS wireless device.

In a preferred implementation of the embodiment of the present invention, when the LS wireless device be not that its subordinate UE is when sending PDCCH and LS wireless device receiving PDCCH from base station on backhaul link on access link, the LS wireless device, by emission is regularly adjusted, can obtain following sub-frame configuration:

Under normal CP, the original position on the 1st slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 6.Original position on the 2nd slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 6.

Under expansion CP, the original position on the 1st slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 5.Original position on the 2nd slot of the backhaul subframe of LS wireless device is the 1st OFDM symbol, and namely the call number of OFDM symbol is 0; Final position is last 1 OFDM symbol, and namely the call number of OFDM symbol is 5.

Under normal CP, the call number of the initial OFDM symbol on the 1st slot of the access subframe of LS wireless device is:

The call number that stops the OFDM symbol is 6.The call number of the initial OFDM symbol on the 2nd slot of the access subframe of LS wireless device is: 0; The call number that stops the OFDM symbol is: 6.

Under expansion CP, the call number of the initial OFDM symbol on the 1st slot of the access subframe of LS wireless device is:

The call number that stops the OFDM symbol is 5.The call number of the initial OFDM symbol on the 2nd slot of the access subframe of LS wireless device is: 0; The call number that stops the OFDM symbol is: 5.

In another preferred implementation of the embodiment of the present invention, when the LS wireless device when sending PDCCH and LS wireless device do not receive PDCCH from base station on backhaul link for its subordinate UE on access link, the LS wireless device, by emission is regularly adjusted, can obtain following sub-frame configuration:

Stopping the OFDM symbol is to be last 1 OFDM symbol of the 1st slot of subframe, and namely the call number of OFDM symbol is 6.The call number of the initial OFDM symbol of the 2nd slot of the backhaul subframe of LS wireless device is: 0, and stopping the OFDM symbol is to be last 1 OFDM symbol of the 2nd slot of subframe, namely the call number of OFDM symbol is 6.

Stopping the OFDM symbol is to be last 1 OFDM symbol of the 1st slot of subframe, and namely the call number of OFDM symbol is 5.The call number of the initial OFDM symbol of the 2nd slot of the backhaul subframe of LS wireless device is: 0, and stopping the OFDM symbol is to be last 1 OFDM symbol of the 2nd slot of subframe, namely the call number of OFDM symbol is 5.

Describe below by specific embodiment.

Embodiment one

In the present embodiment, between LS wireless device and eNB, cooperation transmission is arranged.When carrying out cooperation transmission between LS wireless device and eNB, for example, UE receives PDCCH from front several symbols of eNB, and then receive PDSCH from the LS wireless device, this moment, the data in order to ensure eNB and LS wireless device arrived the UE end simultaneously, and the transmission between LS wireless device and eNB will be carried out according to strict descending timing.For example, take the distance between UE and eNB greater than and the LS wireless device between distance as example, can receive data from eNB and LS wireless device at synchronization in order to guarantee UE end, the LS wireless device need to be adjusted its emission regularly, namely than eNB, postpones (T _Pd-T _Pa) launch.

The LS wireless device is not that its subordinate UE sends PDCCH on access link, and the LS wireless device is under the prerequisite that does not receive on backhaul link from the PDCCH of base station:

The receipts switching of sending out of LS wireless device takies the 1st OFDM symbol of backhaul subframe, and the Transmit enable of LS wireless device takies the 1st OFDM symbol of access subframe.At this moment, backhaul and access subframe have identical configuration, and along with the variation of the shared symbolic number of PDCCH of eNB and change, that is:

Under normal CP, the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is:

When the PDCCH of eNB takies 1 OFDM symbol, the index of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is 1, i.e. backhaul and access transmission is all carried out from the 2nd OFDM sign-on on the 1st slot of subframe.The configuration 0 of corresponding table 1.

When the PDCCH of eNB takies 2 OFDM symbols, the index of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is 2, i.e. backhaul and access transmission is all carried out from the 3rd OFDM sign-on on the 1st slot of subframe.The configuration 1 of corresponding table 1.

When the PDCCH of eNB takies 3 OFDM symbols, the index of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is 3, i.e. backhaul and access transmission is all carried out from the 4th OFDM sign-on on the 1st slot of subframe.The configuration 2 of corresponding table 1.

When the PDCCH of eNB takies 4 OFDM symbols, the index of the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device and access subframe is 4, i.e. backhaul and access transmission is all carried out from the 5th OFDM sign-on on the 1st slot of subframe.The configuration 3 of corresponding table 1.

Termination OFDM notation index on the 1st slot of the backhaul subframe of LS wireless device and access subframe is: last 1 the OFDM symbol on the 1st slot of subframe, 6 in corresponding table 1.

Under normal CP, the initial OFDM notation index on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 0, i.e. and backhaul and access transmission all carried out from the 1st OFDM sign-on on the 2nd slot of subframe.Termination OFDM notation index on the 2nd slot of the backhaul subframe of LS wireless device and access subframe is: 6, and namely backhaul and access transmit last 1 the OFDM symbol on the 2nd slot that all ends at subframe.The configuration 0 of corresponding table 2.

Configuration (normal CP, Δ f=15kHz) on the backhaul of table 1:LS wireless device and the 1st slot of access subframe

Configuration	Initial OFDM notation index	Stop the OFDM notation index
			0	1	6
1	2	6
			2	3	6
3	4	6

Configuration (normal CP, Δ f=15kHz) on the backhaul of table 2:LS wireless device and the 2nd slot of access subframe

Configuration	Initial OFDM notation index	Stop the OFDM notation index
			0	0	6

At this moment, which kind of configuration is the backhaul subframe of LS wireless device specifically adopt utilize RRC signaling or broadcast signaling to notify by eNB.

Embodiment two

In the present embodiment, between LS wireless device and eNB, cooperation transmission is arranged.

The LS wireless device be not that its subordinate UE sends PDCCH and LS wireless device and receiving on backhaul link under prerequisite from the PDCCH of base station on access link:

The receipts switching of sending out of LS wireless device takies last 1 OFDM symbol of access subframe, and the Transmit enable of LS wireless device takies the 1st OFDM symbol of access subframe.In this case, the backhaul sub-frame configuration of LS wireless device is a complete subframe, and namely under normal CP, the original position of the 1st slot of backhaul subframe is the 1st OFDM symbol, last 1 the OFDM symbol of final position; The original position of the 2nd slot is the 1st OFDM symbol, last 1 the OFDM symbol of final position.

And the access sub-frame configuration of LS wireless device can be along with the variation of the shared symbolic number of PDCCH of eNB and change, and is specific as follows:

Under normal CP, the initial OFDM symbol of the 1st slot of the access subframe of LS wireless device is:

When the PDCCH of eNB took 1 OFDM symbol, the initial OFDM notation index of the 1st slot of the access subframe of LS wireless device was 1, i.e. access transmission is carried out from the 2nd the OFDM sign-on of the 1st slot of subframe.The configuration 0 of corresponding table 3.

When the PDCCH of eNB took 2 OFDM symbols, the initial OFDM notation index of the 1st slot of the access subframe of LS wireless device was 2, i.e. access transmission is carried out from the 3rd the OFDM sign-on of the 1st slot of subframe.The configuration 1 of corresponding table 3.

When the PDCCH of eNB took 3 OFDM symbols, the initial OFDM notation index of the 1st slot of the access subframe of LS wireless device was 3, i.e. access transmission is carried out from the 4th the OFDM sign-on of the 1st slot of subframe.The configuration 2 of corresponding table 3.

When the PDCCH of eNB took 4 OFDM symbols, the initial OFDM notation index of the 1st slot of the access subframe of LS wireless device was 4, i.e. access transmission is carried out from the 5th the OFDM sign-on of the 1st slot of subframe.The configuration 3 of corresponding table 3.

The termination OFDM notation index of the 1st slot of the access subframe of LS wireless device is: 6, namely be last 1 the OFDM symbol on the 1st slot of subframe under all configurations, 6 in corresponding table 3.

Under normal CP, the initial OFDM notation index of the 2nd slot of LS wireless device is: 0; Termination OFDM notation index is that last 1 OFDM symbol of the 2nd slot of 5(access subframe all is used as a receipts switching), the configuration 0 of corresponding table 4.

The configuration of the 1st slot of access subframe of table 3:LS wireless device (normal CP, Δ f=15kHz)

Configuration on the 2nd slot of the access subframe of table 4:LS wireless device (normal CP, Δ f=15kHz)

Configuration	Initial OFDM notation index	Stop the OFDM notation index
			0	0	5

At this moment, the backhaul subframe of LS wireless device is a complete subframe, need not eNB and is configured; Which kind of configuration is the access subframe of LS wireless device specifically adopt utilize RRC signaling or broadcast signaling to notify by eNB.

Embodiment three

In the present embodiment, the LS wireless device is not receiving on backhaul link under prerequisite from the PDCCH of base station sending PDCCH and LS wireless device on access link for its subordinate UE:

The receipts switching of sending out of LS wireless device takies the 1st OFDM symbol of backhaul subframe, and the Transmit enable of LS wireless device takies last 1 OFDM symbol of backhaul subframe.In this case, the access sub-frame configuration of LS wireless device is a complete subframe, and namely the original position of access subframe is the 1st OFDM symbol of subframe, and final position is last 1 OFDM symbol of subframe.

And the backhaul sub-frame configuration of LS wireless device can be along with the variation of the shared symbolic number of PDCCH of eNB and change, and is specific as follows:

Under expansion CP, the initial OFDM symbol on the 1st slot of the backhaul subframe of LS wireless device is:

When the PDCCH of eNB took 1 OFDM symbol, the primary sign on the 1st slot of the backhaul subframe of LS wireless device was 1, i.e. backhaul transmission is carried out from the 2nd OFDM sign-on on the 1st slot of subframe.The configuration 0 of corresponding table 5.

When the PDCCH of eNB took 2 OFDM symbols, the primary sign on the 1st slot of the backhaul subframe of LS wireless device was 2, i.e. backhaul transmission is all carried out from the 3rd OFDM sign-on on the 1st slot of subframe.The configuration 1 of corresponding table 5.

When the PDCCH of eNB took 3 OFDM symbols, the primary sign on the 1st slot of the backhaul subframe of LS wireless device was 3, i.e. backhaul transmission is all carried out from the 4th OFDM sign-on on the 1st slot of subframe.The configuration 2 of corresponding table 5.

When the PDCCH of eNB took 4 OFDM symbols, the primary sign on the 1st slot of the backhaul subframe of LS wireless device was 4, i.e. backhaul transmission is all carried out from the 5th OFDM sign-on on the 1st slot of subframe.The configuration 3 of corresponding table 5.

Termination OFDM notation index on the 1st slot of the backhaul subframe of LS wireless device is under all configurations: 5.

Under expansion CP, the initial OFDM notation index on the 2nd slot of the backhaul subframe of LS wireless device is: 0, i.e. and backhaul transmission is carried out from the 1st OFDM sign-on on the 2nd slot of subframe.Termination OFDM notation index on the 2nd slot of the backhaul subframe of LS wireless device is: 5, reason is, last 1 OFDM symbol on the 2nd slot all is used as Transmit enable, so the backhaul end of transmission is in the second-to-last OFDM of subframe symbol, 4 in corresponding table 6.

The backhaul sub-frame configuration of table 5:LS wireless device (expansion CP, Δ f=15kHz)

Configuration	Initial OFDM notation index	Stop the OFDM notation index
			0	1	5
1	2	5
			2	3	5
3	4	5

The backhaul sub-frame configuration of table 6:LS wireless device (expansion CP, Δ f=15kHz)

Configuration	Initial OFDM notation index	Stop the OFDM notation index
			0	0	4

At this moment, the access subframe of LS wireless device is a complete subframe, need not eNB and is configured; And which kind of configuration is the backhaul subframe of LS wireless device specifically adopt utilize RRC signaling or broadcast signaling to notify by eNB.

Embodiment four

In the present embodiment, the LS wireless device is sending PDCCH and LS wireless device under the prerequisite of reception from the PDCCH of base station on backhaul link for its subordinate UE on access link: the receipts switching of sending out of LS wireless device takies last 1 OFDM symbol of access subframe, and the Transmit enable of LS wireless device takies last 1 OFDM symbol of backhaul subframe.In this case, backhaul subframe and access subframe have identical configuration, and can be along with the variation of the shared symbolic number of PDCCH of eNB and change, that is:

Under expansion CP, the initial OFDM symbol of the 1st slot of the backhaul subframe of LS wireless device and access subframe is always: the 1st OFDM symbol, and namely call number is 0; Stopping the OFDM symbol is always: last 1 OFDM symbol, and namely call number is 5;

The initial OFDM symbol of the 2nd slot of the backhaul subframe of LS wireless device and access subframe is always: the 1st OFDM symbol, and namely call number is 0; Stopping the OFDM symbol is always: second-to-last OFDM symbol, namely call number is 4.

Embodiment five

In the present embodiment, do not carry out cooperation transmission between LS wireless device and eNB.

In the present embodiment; when not carrying out cooperation transmission between LS wireless device and eNB; the data that do not require LS wireless device and eNB must arrive UE simultaneously; at this moment; can the emission of LS wireless device regularly be offset; to avoid the minimizing due to a transmitting-receiving/available OFDM symbolic number that cause at receipts protection interval, thereby make the available symbols number of backhaul subframe and access subframe maximize.

In the present embodiment, the LS wireless device be not that its subordinate UE sends PDCCH and LS wireless device and receiving on backhaul link under prerequisite from the PDCCH of base station on access link:

Take the distance between UE and eNB greater than and the LS wireless device between distance as example, the LS wireless device is being postponed (T than eNB _Pd-T _Pa) on the basis of emission, then Δ in advance, and meet simultaneously

And (T _Pb+ T _Pa-T _Pd)+Δ 〉=G _P1, this moment can be so that the transmitting-receiving of LS wireless device conversion and a receipts conversion can not take any symbol.In this case:

The backhaul sub-frame configuration of LS wireless device is a complete subframe, and namely backhaul subframe and original position are the 1st OFDM symbols of subframe, and final position is last 1 OFDM symbol of subframe, as shown in Figure 7.

And the access sub-frame configuration of LS wireless device can be along with the variation of the shared symbolic number of PDCCH of eNB and changes, and the table 1 of embodiment 1 is identical with table 2.

Embodiment six

Δ is regularly postponed in the emission of LS wireless device, and meet Δ-(T _Pb+ T _Pa-Y _Pd) 〉=G _P2.At this moment, just make the transmitting-receiving conversion of LS wireless device and send out to receive and changed on

front

1 or 2 or 3 or 4 control character that all focuses on the backhaul subframe, as shown in Figure 8.In addition, also to meet simultaneously

The time, the access sub-frame configuration of guarantee LS wireless device is a complete subframe, and namely the original position of access subframe is the 1st OFDM symbol of subframe, and final position is last 1 OFDM symbol of subframe.And the backhaul sub-frame configuration of LS wireless device can be along with the variation of the shared symbolic number of PDCCH of eNB and changes, specifically with table 1.

From above description, can find out, one or more embodiment the backhaul subframe that configures and the subframe structure that accesses subframe by the embodiment of the present invention, can be applicable to well the LS wireless device, solved communicate by letter with the LS transmission problem of business and control while coexisting of cellular communication, avoid the interference between cellular communication and LS communication, both guaranteed communication efficiency and reliability, also improved the resource utilization of system simultaneously.

obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a sub-frame configuration method, is characterized in that, comprising:

the configuration information of backhaul subframe and access subframe is determined in base station according to predefined parameter, wherein, described configuration information comprises: the initial sum of described backhaul subframe and described access subframe stops the call number of orthogonal frequency division multiplex OFDM symbol, described backhaul subframe is used for the back haul link transmission between described base station and local service LS wireless device, described access subframe is used for the access link transmission between described LS wireless device and subscriber equipment, described predefined parameter comprise following one of at least: the shared symbolic number of physical down control information PDCCH that described base station sends, the bearing mode of the down control channel of described LS wireless device on back haul link, the bearing mode of the down control channel of described LS wireless device on access link, and whether carry out cooperation transmission between described base station and described LS wireless device,

Described base station notifies the described configuration information of described backhaul subframe and access subframe to described LS wireless device.

2. method according to claim 1, is characterized in that, when described base station and described LS wireless device carried out cooperation transmission, described base station determined that the configuration information of backhaul subframe and access subframe comprises:

Under normal cyclic prefix CP, described base station determine the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot s lot be 0 or

The call number that stops the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5 or 6; Perhaps

Under expansion CP, described base station determine the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 4 or 5;

Wherein,

3. method according to claim 2, it is characterized in that, be not that its subordinate's user equipment (UE) sends PDCCH on described access link when described LS wireless device, and when described LS wireless device did not receive from the PDCCH of described base station on back haul link, the described configuration information that described base station is determined was:

Under normal CP, the call number of described backhaul subframe and the described access subframe initial OFDM symbol on the 1st slot is

The call number that stops the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of described access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 6; Perhaps

Under expansion CP, the call number of described backhaul subframe and the described access subframe initial OFDM symbol on the 1st slot is: The call number that stops the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of described access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5.

4. method according to claim 2, it is characterized in that, be not that its subordinate UE sends PDCCH on described access link when described LS wireless device, and described LS wireless device is while receiving PDCCH from described base station on described back haul link, the definite described configuration information in described base station is:

The call number that under normal CP, described backhaul subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and described access subframe in the call number of the initial OFDM symbol of the 1st slot is

The call number that stops the OFDM symbol is 6, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 5; Perhaps

The call number that under expansion CP, described backhaul subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 5, and described access subframe in the call number of the initial OFDM symbol of the 1st slot is:

The call number that stops the OFDM symbol is 5, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 4.

5. method according to claim 2, it is characterized in that, when described LS wireless device is that its subordinate UE sends PDCCH on access link, and described LS wireless device is not while receiving PDCCH from base station on back haul link, and the described configuration information that described base station is determined is:

Under normal CP, described backhaul subframe in the call number of the initial OFDM symbol of the 1st slot is

The call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 5, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 6; Perhaps,

Under expansion CP, described backhaul subframe in the call number of the initial OFDM symbol of the 1st slot is

6. method according to claim 2, it is characterized in that, when described LS wireless device is that its subordinate UE sends PDCCH on access link, and described LS wireless device is while receiving PDCCH from base station on back haul link, and the definite described configuration information in described base station is:

Under normal CP, the call number that described backhaul subframe and described access subframe be 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and the call number of described backhaul subframe and the initial OFDM symbol of described access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 5; Perhaps,

Under expansion CP, the call number that described backhaul subframe and described access subframe be 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 5, and the call number of described backhaul subframe and the initial OFDM symbol of access subframe on the 2nd slot be 0, the call number that stops the OFDM symbol is 4.

7. method according to claim 1, is characterized in that, when not carrying out cooperation transmission between described LS wireless device and described base station, described base station determines that the configuration information of backhaul subframe and access subframe comprises:

Under normal CP, described base station determine the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 6, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 6, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 6;

The expansion CP under, described base station determine the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 5, the call number of the initial OFDM symbol of described access subframe on the 1st slot be 0 or

The call number that stops the OFDM symbol is 5, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 5, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 5;

Wherein,

8. method according to claim 7, it is characterized in that, be not that its subordinate UE sends PDCCH on access link when described LS wireless device, and described LS wireless device receives the PDCCH from base station on back haul link, described LS wireless device carries out timing adjustment to emission, and the described configuration information that described base station is determined is:

The call number that under normal CP, the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot is 0, stop the OFDM symbol is 6, and the call number of the initial OFDM symbol of described access subframe on the 1st slot is

The call number that stops the OFDM symbol is 6, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 6, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 6; Perhaps,

Under expansion CP, the call number that the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot is 0, stop the OFDM symbol is 5, the call number of the initial OFDM symbol on the 1st slot of described access subframe is, the call number of termination OFDM symbol is 5, and the call number of the initial OFDM symbol of described backhaul subframe on the 2nd slot is 0, the call number that stops the OFDM symbol is 5, and the call number that the call number of the initial OFDM symbol of described access subframe on the 2nd slot is 0, stop the OFDM symbol is 5.

9. method according to claim 7, it is characterized in that, when described LS wireless device is that its subordinate UE sends PDCCH on access link, and described LS wireless device does not receive PDCCH from base station on back haul link, when described LS wireless device carries out timing adjustment to emission, the described configuration information that described base station is determined is:

The call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 1st slot, stop the OFDM symbol is 6, and described backhaul subframe be 0 in the call number of the initial OFDM symbol of the 2nd slot, the call number that stops the OFDM symbol is 6, the call number that described access subframe is 0 in the call number of the initial OFDM symbol of the 2nd slot, stop the OFDM symbol is 6; Perhaps

10. the described method of any one according to claim 1 to 9, it is characterized in that, described base station notifies the described configuration information of described backhaul subframe and access subframe to described LS wireless device, comprising: described base station is notified the described configuration information of described backhaul subframe and access subframe to described LS wireless device by radio resource control RRC high-level signaling or broadcast signaling.

11. according to claim 1 to 9, the described method of any one, is characterized in that, after described base station was notified the described configuration information of described backhaul subframe and access subframe to described LS wireless device, described method also comprised:

Described LS wireless device carries out the transmission of back haul link and access link according to the described configuration information of described backhaul subframe and access subframe.

12. a sub-frame configuration device, is characterized in that, comprising:

determination module, be used for determining according to predefined parameter the configuration information of backhaul subframe and access subframe, wherein, described configuration information comprises: the initial sum of described backhaul subframe and described access subframe stops the call number of orthogonal frequency division multiplex OFDM symbol, described backhaul subframe is used for the back haul link transmission between described base station and local service LS wireless device, described access subframe is used for the access link transmission between described LS wireless device and subscriber equipment, described predefined parameter comprise following one of at least: the shared symbolic number of physical down control information PDCCH that described base station sends, the bearing mode of the down control channel of described LS wireless device on back haul link, the bearing mode of the down control channel of described LS wireless device on access link, and whether carry out cooperation transmission between described base station and described LS wireless device,

Notification module, be used for the described configuration information of described backhaul subframe and access subframe is notified to described LS wireless device.

13. device according to claim 12, is characterized in that, when described base station and described LS wireless device carried out cooperation transmission, the described configuration information of the described backhaul subframe that described determination module is determined and access subframe comprised:

Under normal cyclic prefix CP, the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot s lot be 0 or

Under expansion CP, the call number of described backhaul subframe and the access initial OFDM symbol of subframe on the 1st slot be 0 or

Wherein,

14. device according to claim 12, is characterized in that, when not carrying out cooperation transmission between described LS wireless device and described base station, the described configuration information of the described backhaul subframe that described determination module is determined and access subframe comprises:

Under normal CP, the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

The expansion CP under, the call number of the initial OFDM symbol of described backhaul subframe on the 1st slot be 0 or

Wherein, It is the shared symbolic number of PDCCH that described base station eNB sends.