CN104918227B - The method that base station returns in communication equipment and long evolving system - Google Patents
The method that base station returns in communication equipment and long evolving system Download PDFInfo
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- CN104918227B CN104918227B CN201410085813.5A CN201410085813A CN104918227B CN 104918227 B CN104918227 B CN 104918227B CN 201410085813 A CN201410085813 A CN 201410085813A CN 104918227 B CN104918227 B CN 104918227B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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Abstract
The invention discloses the methods that base station in a kind of communication equipment and LTE system returns, it include: that the first communication equipment determines at least one transmission subframe in first kind frame, first kind frame is generated by the first communication equipment, it and is the time division duplex frame of any sub-frame configuration in long evolving system, transmitting subframe is downlink subframe corresponding with the sub-frame of uplink in the second class frame in first kind frame, or, sub-frame of uplink corresponding with the downlink subframe in the second class frame in first kind frame, wherein, second class frame is obtained after carrying out sub-frame offset according to first kind frame by the second communication equipment；First communication equipment transmits information by transmission subframe and the second communication equipment, through the above way, the present invention can be realized the optimization of the base band in corresponding subframe, mutual assistance transmission is converted by the uplink and downlink interference between eNB in common long evolving system, utilize eNB own resource in long evolving system, the base station passback for realizing wireless mode, substantially reduces network deployment time and cost.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly in a kind of communication equipment and long term evolution LTE system
The method of base station passback.
Background technique
The passback (backhaul) of base station refers in mobile wireless access network (Radio Access Network, RAN) layer, leads to
It crosses a variety of physical medias and establishes a safe and reliable circuit transmission means between base station and base station controller.Due to all visitors
Family terminal is by RAN access to mobile network, acquisition mobile service, and therefore, the network quality of the passback of base station directly affects operation
Whether quotient is enable to respond quickly business development demand.
With the continuous development of long term evolution (Long Term Evolution, LTE) technology, low-power, small covering are drilled
The main means of capacity extension are increasingly becoming into type base station (evolved Node B, eNB).Since eNB station number constantly increases
Add, corresponding network deployment and maintenance issues are increasingly prominent.
ENB passback includes the transmission and eNB and mobile management entity (Mobility Management between eNB
Entity, MME) transmission between/gateway (Serving Gateway, S-GW).In the LTE system of Fig. 1 prior art
The schematic diagram of the passback of eNB.As shown in Figure 1, eNB passback includes S1 interface and X2 interface, using optical fiber solutions.Wherein, S1 is
Interface between eNB and MME/SGW, S1 interface allow an eNB to be connected to multiple MME/SGW POOL (pond), realize that load is equal
Weighing apparatus, superfluous calamity etc..Each eNB supports most 16 S1 interfaces.X2 interface is the distributed interface between adjacent eNB, is mainly used for moving
The AF panel of mobility management and neighboring community, each eNB can define 32 X2 interface, when actual deployment adjacent base station quantity by
Coverage condition determines.Since the passback of eNB uses traditional optical fiber solutions, the construction period is long, at high cost.
Summary of the invention
Embodiment of the present invention provides a kind of method of base station passback in communication equipment and long evolving system, can be realized
Base band optimization in corresponding subframe converts mutual assistance transmission for the uplink and downlink interference between eNB in common long evolving system, utilizes
ENB own resource in long evolving system realizes the base station passback of wireless mode, substantially reduces network deployment time and cost.
First aspect provides a kind of method of base station passback in long evolving system, comprising:
First communication equipment determines that at least one transmission subframe, first kind frame are raw by the first communication equipment in first kind frame
At and being the time division duplex frame of any sub-frame configuration in long evolving system, transmission subframe is in first kind frame with second
The corresponding downlink subframe of sub-frame of uplink in class frame, alternatively, on corresponding with the downlink subframe in the second class frame in first kind frame
Row subframe, wherein the second class frame is obtained after carrying out sub-frame offset according to first kind frame by the second communication equipment；
First communication equipment transmits information by transmission subframe and the second communication equipment.
Implementation with reference to first aspect, in the first possible implementation, method further include:
First communication equipment determines other subframes in first kind frame in addition to transmitting subframe for access subframe；
First communication equipment passes through access subframe and user device transmissions information.
Implementation with reference to first aspect, in the second possible implementation, the second communication equipment are master base station,
First communication equipment is to be returned from base station by the second communication equipment.
Implementation with reference to first aspect, in the third possible implementation, the second communication equipment are mobility
Management entity/gateway, the first communication equipment is master base station, and is had between mobility management entity/gateway
Form the ability of wireless backhaul channel.
Implementation with reference to first aspect, in the fourth possible implementation, first kind frame are long term evolution system
Subframe is configured to 1 time division duplex frame in system, the second class frame be in long evolving system subframe be configured to 1 time division duplex frame to
Frame that is preceding or deviating predetermined quantity subframe backward or first kind frame are the time-division that subframe is configured to 2 in long evolving system
Duplexing frame, the second class frame are that the time division duplex frame that subframe is configured to 2 in long evolving system deviates predetermined quantity forward or backward
The frame of a subframe；Wherein, the predetermined quantity is positive integer, does not include the integral multiple of frame length.
Second aspect provides a kind of communication equipment, comprising: circuit element, for determining that at least one in first kind frame is transmitted
Subframe, first kind frame are generated by the first communication equipment, and are the time division duplexs of any sub-frame configuration in long evolving system
Frame, transmission subframe be first kind frame in downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in first kind frame with
The corresponding sub-frame of uplink of downlink subframe in second class frame, wherein the second class frame is by another communication equipment according to first kind frame
It is obtained after progress sub-frame offset；Antenna element is connect with circuit element, for being passed by transmission subframe and another communication equipment
Defeated information.
In conjunction with the implementation of second aspect, in the first possible implementation, circuit element is also used to determine the
Other subframes in a kind of frame in addition to transmitting subframe are access subframe；Antenna element is also used to set by access subframe with user
Standby transmission information.
In conjunction with the implementation of second aspect, in the second possible implementation, communication equipment is to pass through from base station
Another communication equipment is returned, and another communication equipment is master base station.
In conjunction with the implementation of second aspect, in the third possible implementation, communication equipment is master base station, and
With the ability for forming wireless backhaul channel between mobility management entity/gateway, another communication equipment is mobility
Management entity/gateway.
In conjunction with the implementation of second aspect, in the fourth possible implementation, first kind frame is long term evolution system
Subframe is configured to 1 time division duplex frame in system, the second class frame be in long evolving system subframe be configured to 1 time division duplex frame to
Frame that is preceding or deviating predetermined quantity subframe backward or first kind frame are the time-division that subframe is configured to 2 in long evolving system
Duplexing frame, the second class frame are that the time division duplex frame that subframe is configured to 2 in long evolving system deviates predetermined quantity forward or backward
The frame of a subframe；Wherein, the predetermined quantity is positive integer, does not include the integral multiple of frame length.
The beneficial effects of the present invention are: at least one transmission subframe in first kind frame is determined by the first communication equipment, the
A kind of frame is generated by the first communication equipment, and is the time division duplex frame of any sub-frame configuration in long evolving system, transmission
Subframe be first kind frame in downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in first kind frame with the second class
The corresponding sub-frame of uplink of downlink subframe in frame, wherein the second class frame is to carry out son according to first kind frame by the second communication equipment
It is obtained after vertical shift, realizes the base band optimization in corresponding subframe, maintain hybrid automatic repeat-request timing, it will be commonly long-term
Uplink and downlink that may be present interference is converted into mutual assistance transmission between eNB in evolution system, and the first communication equipment passes through transmission subframe
Information is transmitted with the second communication equipment, to realize that the base station of wireless mode is returned using eNB own resource in long evolving system
It passes, greatly reduces network deployment time and cost.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the schematic diagram that eNB is returned in the LTE system of the prior art；
Fig. 2 is the LTE system structural schematic diagram of first embodiment of the invention；
Fig. 3 is the frame structure subframe transmitting-receiving schematic diagram that base station returns in the LTE system of first embodiment of the invention；
Fig. 4 is the frame structure subframe transmitting-receiving schematic diagram that base station returns in the LTE system of second embodiment of the invention；
Fig. 5 is the structural schematic diagram of communication equipment in the LTE system of first embodiment of the invention；
Fig. 6 is the flow diagram for the method that base station returns in the LTE system of first embodiment of the invention；
Fig. 7 is the structural schematic diagram of communication equipment in the LTE system of second embodiment of the invention.
Specific embodiment
The present invention is described in detail with embodiment with reference to the accompanying drawing.
Referring firstly to Fig. 2, LTE system includes first base station 10, the second base station 20 and MME/S-GW 30, the first base
The S1 interface stood between 10 and the second X2 interface and the second base station 20 and MME/S-GW 30 between base station 20 all uses nothing
Line transmission mode.It should be noted that generally having special transmission device in order to realize passback between base station and core net, wrapping
The radio transmission apparatus (microwave etc.) with antenna is included, to be wirelessly transferred.
In the present embodiment, the first communication equipment can be first base station 10, to be carried out by the second base station 20 from base station
Passback, and correspondingly, it is master base station that the second communication equipment, which is the second base station 20, and has and formed between MME/S-GW 30
The ability of wireless backhaul channel.Alternatively, the first communication equipment can be the second base station 20, and have with MME/S-GW 30 it
Between form the ability of wireless backhaul channel, and correspondingly, the second communication equipment is MME/S-GW 30.U in figure indicates uplink
Frame, D indicate downlink subframe, and S indicates special subframe, while first base station 10 is returned by the second base station 20, Ke Yiyu
Corresponding user equipment (not shown) is communicated.
First communication equipment determines that at least one transmission subframe, first kind frame are raw by the first communication equipment in first kind frame
At, and be the time division duplex (Time Division Duplexing, TDD) of any sub-frame configuration in long evolving system
Frame, transmission subframe be first kind frame in downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in first kind frame with
The corresponding sub-frame of uplink of downlink subframe in second class frame, wherein the second class frame is by the second communication equipment according to first kind frame
It is obtained after progress sub-frame offset.Other subframes in first kind frame in addition to transmitting subframe are determined as accessing subframe, and such the
Each subframe in a kind of frame is divided into transmission subframe and access subframe.First communication equipment passes through access subframe and user equipment
Transmit information.First communication equipment transmits information by transmission subframe and the second communication equipment.Specifically, the transmission of first kind frame
Wireless backhaul channel between subframe and the transmission subframe of the second class frame the first communication equipment of formation and the second communication equipment, first
Communication equipment receives the back information of the second communication equipment transmission using the wireless backhaul channel and sends to the second communication equipment
Back information.In LTE system using hybrid automatic repeat-request (Hybrid Automatic Repeat Request,
HARQ Radio Transmission Technology), and do not have to change first kind frame and the original timing of the second class frame in the above process.Meanwhile such as
Fruit first kind frame does not associate with the second class frame, for example, in first kind frame it is corresponding with the downlink subframe in the second class frame on
Row subframe is rather than the transmission information of the second communication equipment for receiving other communication equipments such as terminal, but due to frame format
Identical, during actual transmissions, sub-frame of uplink corresponding with the downlink subframe in the second class frame may be wrong in first kind frame
Accidentally receive the information that the second communication equipment is sent, it is similarly corresponding with the downlink subframe in first kind frame in the second class frame on
Row subframe may mistakenly receive the information of the first communication equipment transmission, so will cause the interference of uplink and downlink.And in this hair
In bright embodiment, the sub-frame of uplink pair of the downlink subframe of the transmission subframe in first kind frame and the transmission subframe in the second class frame
It answers, the sub-frame of uplink of the transmission subframe in first kind frame is corresponding with the downlink subframe of transmission subframe in the second class frame, i.e., and first
Sub-frame of uplink corresponding with the downlink subframe in the second class frame is the information for receiving the transmission of the second communication equipment in class frame, with
Return the second communication equipment by the first communication equipment, so as to by can between eNB in common long evolving system
The interference of uplink and downlink existing for energy is converted into mutual assistance transmission.
In embodiments of the present invention, at least one transmission subframe is determined in first kind frame by the first communication equipment, first
Class frame is generated by the first communication equipment, and is the time division duplex frame of any sub-frame configuration in long evolving system, transmission
Frame be first kind frame in downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in first kind frame with the second class frame
In the corresponding sub-frame of uplink of downlink subframe, wherein the second class frame be by the second communication equipment according to first kind frame carry out subframe
It is obtained after offset, in this way, realizing the base band optimization in corresponding subframe, HARQ timing is maintained, by common long evolving system
Uplink and downlink that may be present interference is converted into mutual assistance transmission between middle eNB, and the first communication equipment is logical with second by transmission subframe
Believe that equipment transmits information, using eNB own resource in long evolving system, realizes the base station passback of wireless mode, substantially reduce
Network deployment time and cost.
In a more specific embodiment, first kind frame and the second class frame are the LTE of any sub-frame configuration in LTE system
Tdd frame.The long 10ms of LTE tdd frame, including 10 subframes, are subframe 0~9, and LTE tdd frame includes 2 field (half-
Frame), each half frame length 5ms, each field include 5 subframes, each long lms of subframe.Include in a LTE tdd frame
10 subframes in, including standard subframe and special subframe, special subframe include three domains (field), respectively descending pilot frequency
Time slot (Downlink Pilot Time Slot, DwPTS), protection interval (Guard Period, GP) and uplink pilot time slot
(Uplink Pilot Time Slot, UpPTS).In LTE TDD system, for LTE tdd frame, 7 kinds of uplink/downlinks are shared
Sub-frame configuration (Uplink/Downlink subframeconfiguration), 7 kinds of uplink/downlink subframes in LTE system are matched
The LTE tdd frame set is denoted as 0~6.
In embodiments of the present invention, first kind frame is the LTE tdd frame that subframe is configured to 1 in LTE system, and the second class frame is
The LTE tdd frame that subframe is configured to 1 in LTE system deviates the frame of predetermined quantity subframe forward or backward.First kind frame can also
Think that subframe in LTE system is configured to 2 LTE tdd frame, corresponding, the second class frame is that subframe is configured to 2 in LTE system
LTE tdd frame deviates the frame of predetermined quantity subframe forward or backward.Wherein, predetermined quantity is positive integer, does not include frame length
Integral multiple.In other embodiments of the invention, first kind frame can be configured to any one of 0~6 for subframe in LTE system
LTE tdd frame, and to be that first kind frame is corresponding deviate the frame obtained after predetermined quantity subframe to the second class frame forward or backward, takes
In first kind frame, downlink subframe corresponding with the sub-frame of uplink in the second class frame, and with the downlink subframe pair in the second class frame
The sub-frame of uplink answered is the transmission subframe in first kind frame, remaining subframe is the access subframe in first kind frame, in the second class frame
Corresponding sub-frame of uplink and downlink subframe are the transmission subframe in the second class frame, remaining subframe is access in the second class frame
Frame.
As shown in figure 3, first kind frame is the LTETDD frame that upstream and downstream sub-frame configuration is 1 in LTE system, i.e., at this time first
The frame structure of class frame are as follows: the 7th subframe is sub-frame of uplink, and the 8th subframe is sub-frame of uplink, and the 9th subframe is downlink subframe, the 0th subframe
For downlink subframe, the 1st subframe is special subframe, and the 2nd subframe is sub-frame of uplink, and the 3rd subframe is sub-frame of uplink, under the 4th subframe is
Row subframe, the 5th subframe are downlink subframe, and the 6th subframe is special subframe.Since the second class frame is compared with first kind frame, be only
It is deviated in time domain, therefore, the frame structure of the second class frame does not change, the structure and first kind frame of the second class frame
Structure it is identical.In the present embodiment, the second class frame is the LTE tdd frame biased forwards 3 that subframe is configured to 1 in LTE system
The frame of subframe.Therefore, the frame structure of the second class frame are as follows: the 0th subframe is downlink subframe, and the 1st subframe is special subframe, the 2nd subframe
For sub-frame of uplink, the 3rd subframe is sub-frame of uplink, and the 4th subframe is downlink subframe, and the 5th subframe is downlink subframe, and the 6th subframe is spy
Different subframe, the 7th subframe are sub-frame of uplink, and the 8th subframe is sub-frame of uplink, and the 9th subframe is downlink subframe.In the same frame period
In, the second class frame is different from first kind frame, i.e., in the same frame period, the subframe of first kind frame and the second corresponding class frame
Subframe it is different.For example, first kind frame is the LTE tdd frame that upstream and downstream sub-frame configuration is 1 in LTE system, then same
The frame period, i.e., in 10ms, the 7th subframe of first kind frame is sub-frame of uplink, and the subframe of corresponding second class frame is downlink subframe,
8th subframe of first kind frame is sub-frame of uplink, and the subframe of corresponding second class frame is special subframe, the 9th son of first kind frame
Frame is downlink subframe, and the subframe of corresponding second class frame is sub-frame of uplink, and the 0th subframe of first kind frame is downlink subframe, corresponding
The subframe of second class frame is sub-frame of uplink, and the 1st subframe of first kind frame is special subframe, under the subframe of corresponding second class frame is
Row subframe, the 2nd subframe of first kind frame are sub-frame of uplink, and the subframe of corresponding second class frame is downlink subframe, first kind frame
3rd subframe is sub-frame of uplink, and the subframe of corresponding second class frame is special subframe, and the 4th subframe of first kind frame is downlink
Frame, the subframe of corresponding second class frame are sub-frame of uplink, and the 5th subframe of first kind frame is downlink subframe, corresponding second class frame
Subframe is sub-frame of uplink, and the 6th subframe of first kind frame is special subframe, and the subframe of corresponding second class frame is downlink subframe.Its
In, U indicates that sub-frame of uplink, D indicate that downlink subframe, S indicate special subframe.As it can be seen that the 7th subframe of first kind frame and the 2nd subframe
For sub-frame of uplink, and corresponding second subframe is downlink subframe, the 9th subframe of first kind frame, the 0th subframe, the 4th subframe and the
5 subframes are downlink subframe, and corresponding second subframe is sub-frame of uplink, therefore, can be by the 7th subframe of first kind frame, the 9th son
Frame, the 0th subframe, the 2nd subframe, the 4th subframe and the 5th sub-frame division are transmission subframe, and other sub-frame divisions are access subframe, together
The 0th subframe, the 2nd subframe, the 3rd subframe, the 5th subframe, the 7th subframe and the 8th sub-frame division by the second class frame of sample are transmission
Subframe, other sub-frame divisions are access subframe, so that the biography of the corresponding second class frame of the sub-frame of uplink of the transmission subframe of first kind frame
The downlink subframe of defeated subframe, and the downlink subframe of the corresponding second class frame of the sub-frame of uplink of the first subframe.
The rest may be inferred, when first kind frame is that upstream and downstream sub-frame configuration is 2 or other sub-frame configurations in LTE system
When LTE tdd frame, the second class frame can be equally determined.
The transmission subframe of first kind frame and the transmission subframe of the second class frame are used for the first communication equipment and the second communication equipment
Information is transmitted, the access subframe of first kind frame is for the first communication equipment and corresponding user device transmissions information.Specifically,
Sub-frame of uplink in the transmission subframe of a kind of frame is used to receive the back information of the second communication equipment transmission, the transmission of first kind frame
Downlink subframe in subframe is used to send back information to the second communication equipment.Sub-frame of uplink in the transmission subframe of second class frame
For receiving the back information of the first communication equipment transmission, the downlink subframe in the transmission subframe of the second class frame is used for logical to first
Believe that equipment sends back information.If the first communication equipment is first base station 10, the second communication equipment is the second base station 20, then
The access subframe of two class frames is for the second base station 20 and corresponding user device transmissions information.
In Fig. 3, the 7th subframe, the 9th subframe in the first kind frame of the first communication equipment, the 0th subframe, the 2nd son
Frame, the 4th subframe and the 5th subframe are transmission subframe, the 0th subframe in the second class frame of the second communication equipment, the 2nd
Subframe, the 3rd subframe, the 5th subframe, the 7th subframe and the 8th subframe are transmission subframe, are set for realizing the first communication
It is standby to transmit information between the second communication equipment.The 8th subframe, the 1st subframe in the first kind frame of first communication equipment,
3 subframes and the 6th subframe are access subframe, for the first communication equipment and corresponding user device transmissions information, second
The 1st subframe, the 4th subframe, the 6th subframe and the 9th subframe in second class frame of communication equipment are access subframe.The
The 7th subframe in the first kind frame of one communication equipment indicates to receive the in the sub-frame of uplink of the 7th subframe in first kind frame
The downlink subframe that two communication equipments are sent.The 2nd subframe in the first kind frame of first communication equipment is identical with this, no longer superfluous
It states.It is connect in the sub-frame of uplink of the 8th subframe in the 8th subframe expression first kind frame in the first kind frame of first communication equipment
Receive the special subframe of the second communication equipment transmission.The 3rd subframe in the first kind frame of first communication equipment is identical with this.First
The 9th subframe in the first kind frame of communication equipment indicates logical to second in the downlink subframe of the 9th subframe in first kind frame
Believe that equipment sends sub-frame of uplink.The 0th subframe, the 4th subframe and the 5th subframe in the first kind frame of first communication equipment
It is identical with this, repeats no more.The 1st subframe in the first kind frame of first communication equipment indicates that the first communication equipment is corresponded to it
User equipment send special subframe, while the second communication equipment sends downlink subframe to its corresponding user equipment.First is logical
Believe that the 6th subframe in the first kind frame of equipment is identical with this.In this way, by being transmission by each sub-frame division in first kind frame
Subframe and access subframe, the access subframe of first kind frame is for the first communication equipment and user device transmissions information, first kind frame
Access subframe for the first communication equipment and the second communication equipment transmission information.To realize that the base band in corresponding subframe is excellent
Change, maintain HARQ timing, by uplink and downlink that may be present interference is converted into mutual assistance and passes between eNB in common long evolving system
It is defeated, and using eNB own resource in long evolving system, it realizes the base station passback of wireless mode, greatly reduces network deployment
Time and cost.
As shown in figure 4, first kind frame is the LTE tdd frame that upstream and downstream sub-frame configuration is 2 in LTE system, the second class frame
The frame of 2 LTE tdd frame 3 subframes of biased forwards is configured to for subframe in LTE system.The first kind frame of first communication equipment
7th subframe and the 2nd subframe are sub-frame of uplink, and corresponding second subframe is downlink subframe, the 9th subframe of first kind frame and the 4th
Subframe is downlink subframe, and corresponding second subframe is sub-frame of uplink, therefore, can by first kind frame the 7th subframe, the
9 subframes, the 2nd subframe and the 4th subframe are divided into transmission subframe, in the second class frame of corresponding second communication equipment
0th subframe, the 2nd subframe, the 5th subframe and the 7th subframe are divided into transmission subframe, transmission of such first kind frame
The downlink subframe of the transmission subframe of the corresponding second class frame of the sub-frame of uplink of frame, and the corresponding second class frame of the sub-frame of uplink of the first subframe
Downlink subframe, can be used to implement and transmit information between the first communication equipment and the second communication equipment.Meanwhile first communication set
The 8th subframe, the 1st subframe, the 3rd subframe, the 5th subframe and the 6th subframe in standby first kind frame are divided into and connect
Enter subframe, the 1st subframe, the 3rd subframe, the 4th subframe, the 8th subframe, the 6th in the second class frame of the second communication equipment
A subframe, the 8th subframe and the 9th subframe are divided into access subframe, for the first communication equipment and the second communication equipment point
It is not communicated with corresponding user equipment.The 7th subframe in the first kind frame of first communication equipment indicates in first kind frame
The 7th subframe sub-frame of uplink in receive the second communication equipment transmission downlink subframe.The first kind frame of first communication equipment
In the 2nd subframe be identical with this, repeat no more.The 8th subframe in the first kind frame of first communication equipment indicates that first is logical
Believe that equipment sends downlink subframe to corresponding user equipment, while the second communication equipment is special to its corresponding user equipment transmission
Subframe.The 3rd subframe in the first kind frame of first communication equipment is identical with this.In the first kind frame of first communication equipment
9 subframes indicate to send sub-frame of uplink to the second communication equipment in the downlink subframe of the 9th subframe in first kind frame.First is logical
Believe that the 4th subframe in the first kind frame of equipment is identical with this.The 0th subframe in the first kind frame of first communication equipment indicates
First communication equipment sends downlink subframe to its corresponding user equipment, while the second communication equipment is to its corresponding user equipment
Send downlink subframe.The 5th subframe in the first kind frame of first communication equipment is identical with this.The first kind of first communication equipment
The 1st subframe in frame indicates to send special subframe to its corresponding user equipment, while the second communication equipment is corresponding to its
User equipment sends downlink subframe.The 6th subframe in the first kind frame of first communication equipment is identical with this.
In embodiments of the present invention, the first communication equipment generate first kind frame, and determine first kind frame in the second class frame
In the corresponding downlink subframe of sub-frame of uplink or first kind frame in sub-frame of uplink corresponding with the downlink subframe in the second class frame
For transmit subframe, wherein the second class frame be by the second communication equipment according to first kind frame carry out sub-frame offset after obtain, thus
Realize the base band optimization in corresponding subframe, maintain HARQ timing, by common long evolving system between eNB it is that may be present
Uplink and downlink interference is converted into mutual assistance transmission.First communication equipment transmits information by transmission subframe and the second communication equipment, thus
Using eNB own resource in long evolving system, realize the base station passback of wireless mode, greatly reduce network deployment time and
Cost.
Referring to Fig. 5, Fig. 5 is the structural schematic diagram of communication equipment in the LTE system of first embodiment of the invention.Such as Fig. 5
Shown, communication equipment 40 includes circuit element 41 and antenna element 42.Circuit element 41 is for determining at least one in first kind frame
A transmission subframe, first kind frame are generated by circuit element 41, and are the time-divisions of any sub-frame configuration in long evolving system
Duplexing frame, transmission subframe is downlink subframe corresponding with the sub-frame of uplink in the second class frame in first kind frame, alternatively, first kind frame
In sub-frame of uplink corresponding with the downlink subframe in the second class frame, wherein the second class frame is by another communication equipment according to first
It is obtained after class frame progress sub-frame offset.Antenna element 42 is used to transmit information by transmission subframe and another communication equipment.
In embodiments of the present invention, the communication interface between the first communication equipment and another communication equipment is all passed using wireless
Defeated mode.First communication equipment can be first base station 10, to be returned by the second base station 20 from base station, and correspondingly,
Another communication equipment is the second base station 20, is master base station, and have and form wireless backhaul channel between MME/S-GW 30
Ability.Alternatively, the first communication equipment can be the second base station 20, and has and form wireless backhaul between MME/S-GW 30
The ability of channel, and correspondingly, another communication equipment is MME/S-GW 30.
In embodiments of the present invention, circuit element is also used to determine other subframes in first kind frame in addition to transmitting subframe
To access subframe；Antenna element is also used to through access subframe and user device transmissions information.And in the second class frame with the first kind
The corresponding downlink subframe of sub-frame of uplink in frame, alternatively, uplink corresponding with the downlink subframe in first kind frame in the second class frame
Subframe is determined as transmitting subframe, other subframes in the second class frame in addition to transmit subframe are determined as access subframe.Antenna element
42 transmit information by the transmission subframe of first kind frame and the transmission subframe of the second class frame and another communication equipment, pass through the first kind
The access subframe and user device transmissions information of frame.Specifically, upper in the transmission subframe that antenna element 42 passes through first kind frame
Row subframe receives the back information that another communication equipment is sent, by the downlink subframe in the transmission subframe of first kind frame to another
Communication equipment sends back information.The sub-frame of uplink in transmission subframe that another communication equipment passes through the second class frame receives communication and sets
Standby 40 back informations sent, send back communication to communication equipment 40 by the downlink subframe in the transmission subframe of the second class frame
Breath.If the first communication equipment is first base station 10, another communication equipment is the second base station 20, then the second base station 20 is also by the
The access subframe and user device transmissions information of two class frames.
In embodiments of the present invention, first kind frame is the LTE tdd frame that subframe is configured to 1 in LTE system, and the second class frame is
The LTE tdd frame that subframe is configured to 1 in LTE system deviates the frame of predetermined quantity subframe forward or backward.First kind frame can also
Think that subframe in LTE system is configured to 2 LTE tdd frame, corresponding, the second class frame is that subframe is configured to 2 in LTE system
LTE tdd frame deviates the frame of predetermined quantity subframe forward or backward.Wherein, predetermined quantity is positive integer, does not include frame length
Integral multiple.In other embodiments of the invention, first kind frame can be configured to any one of 0~6 for subframe in LTE system
LTE tdd frame, and to be that first kind frame is corresponding deviate the frame obtained after predetermined quantity subframe to the second class frame forward or backward, takes
In first kind frame, downlink subframe corresponding with the sub-frame of uplink in the second class frame, and with the downlink subframe pair in the second class frame
The sub-frame of uplink answered is the transmission subframe in first kind frame, remaining subframe is the access subframe in first kind frame, in the second class frame
Corresponding sub-frame of uplink and downlink subframe are the transmission subframe in the second class frame, remaining subframe is access in the second class frame
Frame.
In embodiments of the present invention, at least one transmission subframe, the first kind in first kind frame are determined by circuit element 41
Frame is generated by circuit element 41, and is the time division duplex frame of any sub-frame configuration in long evolving system, and transmission subframe is
Downlink subframe corresponding with the sub-frame of uplink in the second class frame in first kind frame, alternatively, in first kind frame and in the second class frame
The corresponding sub-frame of uplink of downlink subframe, wherein the second class frame is to carry out sub-frame offset according to first kind frame by another communication equipment
It obtains afterwards, to realize the base band optimization in corresponding subframe, maintains HARQ timing, it will be in common long evolving system
Uplink and downlink that may be present interference is converted into mutual assistance transmission between eNB, and antenna element 42 is used for through transmission subframe and another logical
Believe that equipment transmits information, to realize the base station passback of wireless mode, significantly using eNB own resource in long evolving system
Reduce network deployment time and cost.
Referring to Fig. 6, Fig. 6 is the flow diagram for the method that base station returns in the LTE system of first embodiment of the invention.
As shown in fig. 6, the method for base station passback includes:
S10: the first communication equipment 40 determines that at least one transmission subframe, first kind frame are set by the first communication in first kind frame
Standby 40 generate, and are the LTE Time Division Duplex TDD frames of any sub-frame configuration in LTE system, and transmission subframe is in first kind frame
Downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in first kind frame with the downlink subframe pair in the second class frame
The sub-frame of uplink answered, wherein the second class frame is obtained after carrying out sub-frame offset according to first kind frame by the second communication equipment.
In embodiments of the present invention, the communication interface between the first communication equipment 40 and the second communication equipment all uses wirelessly
Transmission mode.First communication equipment 40 can be first base station 10, to be returned by the second base station 20 from base station, and phase
Ying Di, the second communication equipment are the second base stations 20, are master base station, and have and form wireless backhaul between MME/S-GW 30
The ability of channel.Alternatively, the first communication equipment 40 can be the second base station 20, and has and formed between MME/S-GW 30
The ability of wireless backhaul channel, and correspondingly, the second communication equipment is MME/S-GW 30.
In embodiments of the present invention, the first communication equipment also determines other subframes in first kind frame in addition to transmitting subframe
To access subframe.Downlink subframe corresponding with the sub-frame of uplink in first kind frame in second class frame simultaneously, alternatively, in the second class frame
Sub-frame of uplink corresponding with the downlink subframe in first kind frame is determined as transmitting subframe, in the second class frame in addition to transmitting subframe
Other subframes are determined as accessing subframe.
In embodiments of the present invention, first kind frame is the LTE tdd frame that subframe is configured to 1 in LTE system, and the second class frame is
The LTE tdd frame that subframe is configured to 1 in LTE system deviates the frame of predetermined quantity subframe forward or backward.First kind frame can also
Think that subframe in LTE system is configured to 2 LTE tdd frame, corresponding, the second class frame is that subframe is configured to 2 in LTE system
LTE tdd frame deviates the frame of predetermined quantity subframe forward or backward.Wherein, predetermined quantity is positive integer, does not include frame length
Integral multiple.In other embodiments of the invention, first kind frame can be configured to any one of 0~6 for subframe in LTE system
LTE tdd frame, and the second class frame can deviate the frame obtained after predetermined quantity subframe forward or backward for first kind frame, take
In first kind frame, downlink subframe corresponding with the sub-frame of uplink in the second class frame, and with the downlink subframe pair in the second class frame
The sub-frame of uplink answered is the transmission subframe in first kind frame, remaining subframe is the access subframe in first kind frame, in the second class frame
Corresponding sub-frame of uplink and downlink subframe are the transmission subframe in the second class frame, remaining subframe is access in the second class frame
Frame.
S11: the first communication equipment transmits information by transmission subframe and the second communication equipment.
In embodiments of the present invention, the transmission subframe of first kind frame and the transmission subframe of the second class frame are set for the first communication
It is standby to transmit information with the second communication equipment.Specifically, the transmission subframe of first kind frame and the transmission subframe of the second class frame form the
Wireless backhaul channel between one communication equipment and the second communication equipment.Wireless backhaul channel include up-link wireless return path and
Downlink wireless backhaul channel.Sub-frame of uplink in the transmission subframe of first kind frame forms the up-link wireless passback of the first communication equipment
Channel, for receiving the back information of the second communication equipment transmission, downlink subframe formation in the transmission subframe of first kind frame the
The downlink wireless backhaul channel of one communication equipment, for sending back information to the second communication equipment.Transmission of second class frame
Sub-frame of uplink in frame is used to receive the back information that the first communication equipment 40 and MME/S-GW 30 are sent, if first is logical
Believe that equipment is first base station 10, the second communication equipment is the second base station 20, then the access subframe of the second class frame is used for the second base station
Communication between 20 and corresponding user equipment.
In embodiments of the present invention, at least one transmission subframe in first kind frame is determined by the first communication equipment 40, the
A kind of frame is generated by the first communication equipment, and is the LTE Time Division Duplex TDD frame of any sub-frame configuration in LTE system, transmission
Subframe be first kind frame in downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in first kind frame with the second class
The corresponding sub-frame of uplink of downlink subframe in frame, wherein the second class frame is to carry out son according to first kind frame by the second communication equipment
It is obtained after vertical shift, to realize the base band optimization in corresponding subframe, HARQ timing is maintained, by common long evolving system
Uplink and downlink that may be present interference is converted into mutual assistance transmission between middle eNB, and the first communication equipment is logical with second by transmission subframe
Believe that equipment transmits information, to realize the base station passback of wireless mode, significantly using eNB own resource in long evolving system
Reduce network deployment time and cost.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram of communication equipment in the LTE system of second embodiment of the invention.Such as Fig. 7
Shown, communication equipment 50 includes: processor 51, antenna 52, memory 53 and data/address bus 54.Processor 51, antenna 52 with
And memory 53 is connected by data/address bus 54, to be in communication with each other.Processor 51, memory 53 and data/address bus 54 can
To be integrated in a circuit element.Processor 51 for determining in first kind frame at least one transmission subframe, first kind frame by
Processor 51 generates, and is the LTE Time Division Duplex TDD frame of any sub-frame configuration in LTE system, and transmission subframe is the first kind
Downlink subframe corresponding with the sub-frame of uplink in the second class frame in frame, alternatively, sub with the downlink in the second class frame in first kind frame
The corresponding sub-frame of uplink of frame, wherein the second class frame is obtained after carrying out sub-frame offset according to first kind frame by another communication equipment
's.Antenna 52 is used to transmit information by transmission subframe and another communication equipment.Memory 53 is for storing first kind frame.
In embodiments of the present invention, the communication interface between the first communication equipment and another communication equipment is all passed using wireless
Defeated mode.First communication equipment can be first base station 10, to be returned by the second base station 20 from base station, and correspondingly,
Another communication equipment is the second base station 20, is master base station, and have and form wireless backhaul channel between MME/S-GW 30
Ability.Alternatively, the first communication equipment can be the second base station 20, and has and form wireless backhaul between MME/S-GW 30
The ability of channel, and correspondingly, another communication equipment is MME/S-GW 30.
In embodiments of the present invention, processor 51 is also used to determine other subframes in first kind frame in addition to transmitting subframe
To access subframe.And downlink subframe corresponding with the sub-frame of uplink in first kind frame in the second class frame, alternatively, in the second class frame with
The corresponding sub-frame of uplink of downlink subframe in first kind frame is determined as transmitting subframe, its in the second class frame in addition to transmitting subframe
His subframe is determined as accessing subframe.Antenna 52 is led to by the transmission subframe of first kind frame and the transmission subframe of the second class frame with another
Believe that equipment transmits information, passes through the access subframe and user device transmissions information of first kind frame.The access subframe of second class frame is used
In another communication equipment and corresponding user device transmissions information.Specifically, in the transmission subframe that antenna 52 passes through first kind frame
Sub-frame of uplink receive the back information that another communication equipment is sent, by the downlink subframe in the transmission subframe of first kind frame to
Another communication equipment sends back information.The sub-frame of uplink in transmission subframe that another communication equipment passes through the second class frame receives logical
Believe the back information that equipment 50 is sent, is sent and returned to communication equipment 50 by the downlink subframe in the transmission subframe of the second class frame
Information.If communication equipment 50 is first base station 10, another communication equipment is the second base station 20, then the second base station 20 is also by the
The access subframe and user device transmissions information of two class frames.
In embodiments of the present invention, first kind frame is the LTE tdd frame that subframe is configured to 1 in LTE system, and the second class frame is
The LTE tdd frame that subframe is configured to 1 in LTE system deviates the frame of predetermined quantity subframe forward or backward.First kind frame can also
Think that subframe in LTE system is configured to 2 LTE tdd frame, corresponding, the second class frame is that subframe is configured to 2 in LTE system
LTE tdd frame deviates the frame of predetermined quantity subframe forward or backward.Wherein, predetermined quantity is positive integer, does not include frame length
Integral multiple.In other embodiments of the invention, first kind frame can be configured to any one of 0~6 for subframe in LTE system
LTE tdd frame, and the second class frame can deviate the frame obtained after predetermined quantity subframe forward or backward for first kind frame, place
Reason device 51 take in first kind frame, downlink subframe corresponding with the sub-frame of uplink in the second class frame, and in the second class frame under
The corresponding sub-frame of uplink of row subframe is the transmission subframe in first kind frame, remaining subframe is the access subframe in first kind frame, the
Corresponding sub-frame of uplink and downlink subframe are the transmission subframe in the second class frame in two class frames, remaining subframe is in the second class frame
Access subframe.
In embodiments of the present invention, at least one transmission subframe, first kind frame in first kind frame are determined by processor 51
It is generated by processor 51, and is the LTE Time Division Duplex TDD frame of any sub-frame configuration in LTE system, transmission subframe is first
Downlink subframe corresponding with the sub-frame of uplink in the second class frame in class frame, alternatively, in first kind frame with the downlink in the second class frame
The corresponding sub-frame of uplink of subframe, wherein the second class frame is obtained after carrying out sub-frame offset according to first kind frame by another communication equipment
It arrives, to realize the base band optimization in corresponding subframe, maintains HARQ timing, it will be in common long evolving system between eNB
Uplink and downlink interference that may be present is converted into mutual assistance transmission, and antenna 52 transmits information by transmission subframe and another communication equipment,
So that the base station passback of wireless mode is realized, when greatly reducing network deployment using eNB own resource in long evolving system
Between and cost.
In conclusion the present invention by first communicate determine first kind frame at least one transmission subframe, first kind frame by
First communication equipment generates, and is the LTE Time Division Duplex TDD frame of any sub-frame configuration in LTE system, and transmission subframe is the
Downlink subframe corresponding with the sub-frame of uplink in the second class frame in a kind of frame, alternatively, in first kind frame in the second class frame under
The corresponding sub-frame of uplink of row subframe, wherein the second class frame is after carrying out sub-frame offset according to first kind frame by the second communication equipment
Obtain, thus realize in corresponding subframe base band optimization, maintain HARQ timing, by eNB in common long evolving system it
Between uplink and downlink that may be present interference be converted into mutual assistance transmission, the first communication equipment is passed by transmission subframe and the second communication equipment
Defeated information, to realize the base station passback of wireless mode using eNB own resource in long evolving system, greatly reduce net
Network deployment time and cost.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of method that base station returns in long evolving system, which is characterized in that the described method includes:
First communication equipment determines at least one transmission subframe in first kind frame, and the first kind frame is by first communication equipment
It generates, and is the time division duplex frame of any sub-frame configuration in the long evolving system, the transmission subframe is described the
Downlink subframe corresponding with the sub-frame of uplink in the second class frame in a kind of frame, alternatively, in the first kind frame with second class
The corresponding sub-frame of uplink of downlink subframe in frame, wherein the second class frame is by the second communication equipment according to the first kind
It is obtained after frame progress sub-frame offset；
First communication equipment transmits information by the transmission subframe and second communication equipment.
2. the method according to claim 1, wherein the method also includes:
First communication equipment determines other subframes in the first kind frame in addition to transmitting subframe for access subframe；
First communication equipment passes through the access subframe and user device transmissions information.
3. described first is logical the method according to claim 1, wherein second communication equipment is master base station
Believe that equipment is to be returned from base station by second communication equipment.
4. the method according to claim 1, wherein second communication equipment is mobility management entity/clothes
Business gateway, first communication equipment is master base station, and has and formed wirelessly between mobility management entity/gateway
The ability of return path.
5. the method according to claim 1, wherein the first kind frame is subframe in the long evolving system
Be configured to 1 time division duplex frame, the second class frame be in the long evolving system subframe be configured to 1 time division duplex frame to
Frame that is preceding or deviating predetermined quantity subframe backward, or
The first kind frame is the time division duplex frame that subframe is configured to 2 in the long evolving system, and the second class frame is institute
It states subframe in long evolving system and is configured to 2 time division duplex frame and deviate the frame of predetermined quantity subframe forward or backward；
Wherein, the predetermined quantity is positive integer, does not include the integral multiple of frame length.
6. a kind of communication equipment, which is characterized in that the communication equipment includes:
Circuit element, for determining, at least one transmission subframe, the first kind frame are given birth to by the communication equipment in first kind frame
At, and be the time division duplex frame of any sub-frame configuration in long evolving system, the transmission subframe is the first kind frame
In downlink subframe corresponding with the sub-frame of uplink in the second class frame, alternatively, in the first kind frame and in the second class frame
The corresponding sub-frame of uplink of downlink subframe, wherein the second class frame is to be carried out by another communication equipment according to the first kind frame
It is obtained after sub-frame offset；
Antenna element is connect with the circuit element, for being believed by the transmission subframe and another communication equipment transmission
Breath.
7. communication equipment according to claim 6, which is characterized in that
The circuit element is also used to determine other subframes in the first kind frame in addition to the transmission subframe for access
Frame；
The antenna element is also used to through the access subframe and user device transmissions information.
8. communication equipment according to claim 6, which is characterized in that the communication equipment is from base station, by described another
One communication equipment is returned, and another communication equipment is master base station.
9. communication equipment according to claim 6, which is characterized in that the communication equipment be master base station, and have with
The ability of wireless backhaul channel is formed between mobility management entity/gateway, another communication equipment is mobility pipe
Manage entity/gateway.
10. communication equipment according to claim 6, which is characterized in that the first kind frame is the long evolving system
Middle subframe is configured to 1 time division duplex frame, and the second class frame is the time-division pair that subframe is configured to 1 in the long evolving system
Work frame deviates the frame of predetermined quantity subframe forward or backward, or
The first kind frame is the time division duplex frame that subframe is configured to 2 in the long evolving system, and the second class frame is institute
It states subframe in long evolving system and is configured to 2 time division duplex frame and deviate the frame of predetermined quantity subframe forward or backward；
Wherein, the predetermined quantity is positive integer, does not include the integral multiple of frame length.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410085813.5A CN104918227B (en) | 2014-03-10 | 2014-03-10 | The method that base station returns in communication equipment and long evolving system |
| PCT/CN2014/091278 WO2015135335A1 (en) | 2014-03-10 | 2014-11-17 | Communication device and base station backhaul method in long term evolution system |
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| CN201410085813.5A CN104918227B (en) | 2014-03-10 | 2014-03-10 | The method that base station returns in communication equipment and long evolving system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123492A (en) * | 2011-01-14 | 2011-07-13 | 电信科学技术研究院 | Method, system and equipment for configuring downlink subframes and receiving downlink data |
| CN102577174A (en) * | 2009-10-09 | 2012-07-11 | 高通股份有限公司 | Subframe staggering for relay communication |
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| US8971241B2 (en) * | 2008-09-30 | 2015-03-03 | Qualcolmm Incorporated | Techniques for supporting relay operation in wireless communication systems |
| US8873454B2 (en) * | 2009-12-18 | 2014-10-28 | Qualcomm Incorporated | Apparatus and method for transmit-response timing for relay operation in wireless communications |
| CN102143586B (en) * | 2010-02-01 | 2015-06-03 | 中兴通讯股份有限公司 | Processing method and system for backhaul link uplink control channel |
| CN103220677B (en) * | 2013-05-09 | 2016-02-10 | 东莞宇龙通信科技有限公司 | For interference elimination method and the base station of cell cluster |
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- 2014-11-17 WO PCT/CN2014/091278 patent/WO2015135335A1/en active Application Filing
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577174A (en) * | 2009-10-09 | 2012-07-11 | 高通股份有限公司 | Subframe staggering for relay communication |
| CN102123492A (en) * | 2011-01-14 | 2011-07-13 | 电信科学技术研究院 | Method, system and equipment for configuring downlink subframes and receiving downlink data |
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