CN102801461A - Downlink return sub-frame structure configuration method and system - Google Patents
Downlink return sub-frame structure configuration method and system Download PDFInfo
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- CN102801461A CN102801461A CN2011101392054A CN201110139205A CN102801461A CN 102801461 A CN102801461 A CN 102801461A CN 2011101392054 A CN2011101392054 A CN 2011101392054A CN 201110139205 A CN201110139205 A CN 201110139205A CN 102801461 A CN102801461 A CN 102801461A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
Abstract
The invention discloses a downlink return sub-frame structure configuration method and system. The method comprises the following steps of: configuring the destination symbol of the return transmission on the second slot of the downlink return sub-frame of a relay station and/or the timing state of the relay station according to the downlink transmission time delay from a base station to the relay station or the distance between the base station and the relay station; and configuring the downlink return sub-frame structure according to the destination symbol and/or timing state by the relay station. Through the invention, the self-interference of the downlink receiving end and transmitting end of the relay station can be avoided, thus the system performance and user experience can be guaranteed.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of descending backhaul subframe structure collocation method and system.
Background technology
Relaying technique has caused attention more and more widely as a kind of emerging technology, is regarded as the key technology of B3G/4G.Because following radio communication or cellular system require to increase coverage, support the higher rate transmission, this has proposed new challenge to wireless communication technology.Simultaneously, the cost issues of system building and maintenance is more outstanding.Along with the increase of transmission rate and communication distance, it is outstanding that the energy consumption issues of battery also becomes, and following radio communication will adopt higher frequency, and the pathloss attenuation that causes thus is more serious.Through relaying technique, can traditional one hop link be divided into a plurality of multi-hop links, because reduced distances, this will greatly reduce path loss, help to improve transmission quality, enlarge communication range, thereby quicker better service will be provided for the user.
Fig. 1 is the sketch map according to the junction network structure of correlation technique; As shown in Figure 1; In junction network; User and the link between relay station that relay station is participated in service are called as access link (Access Link), and the link between relay station and base station is called as back haul link (Backhaul Link), and user and the link between the base station that service is participated in the base station are called as the link that direct transfers (Direct Link).
Fig. 2 is the sketch map according to the subframe structure of correlation technique, and is as shown in Figure 2, and in Long Term Evolution (Long Term Evolution abbreviates LTE as) and follow-up evolution communication systems thereof, the standard time length of 1 descending sub frame or sub-frame of uplink is T
Subframe=30720T
S=1ms, each subframe comprises 2 slot, the time span T of each slot
Slot=15360T
s=0.5ms.If in subframe, adopt general cyclic prefix (Normal cyclic prefix; Wherein cyclic prefix is called for short CP); Then comprise 7 OFDMs (Orthogonal Frequency Division Multiplexing among 1 descending or up slot; Abbreviate OFDM as) symbol or single carrier-frequency division multiple access (Single Carrier-Frequency Division Multiple Access abbreviates SC-FDMA as) symbol, promptly from symbol 0 up-to symbol 6.
Interior, the length of symbol 0 is 2208T with the CP length computation
s, the length of other symbols is 2192T
sIf in subframe, adopt expansion CP (Extended cyclic prefix), then 1 slot comprises 6 symbols, and interior, the length of each symbol is 2560T with the CP length computation
sWherein, Ts representes the length of a time quantum, T
s=1/30720 millisecond.During the present invention described, OFDM symbol or SC-FDMA symbol can abbreviate symbol as, and in subframe, symbol logo is since 0.Below discuss if there is not explanation, all be assumed to be the common CP configuration.
For relaying (In-band relaying) in the band, back haul link is operated on the identical frequency spectrum with access link.Generally speaking, disturb,, can not carry out descending or up transmission simultaneously on regulation back haul link and the access link, and must stagger in time for relaying in the band for fear of producing between the receiving terminal of relay station self and the transmitting terminal.Therefore; The subframe that will be used for the relay station transmission at present is divided into the backhaul subframe and inserts subframe; The back haul link of relay station is descending to carry out on descending and up backhaul subframe respectively with uplink, and descending and up access subframe then is respectively applied for the descending and uplink of access link specially.And; For descending backhaul subframe; Relay station need be before this subframe carries out the downlink of access link on 1 or 2 OFDM symbol; Promptly carry out downlink to the user, and on remaining available resource, carry out the descending reception of back haul link, promptly receive downlink transfer from the base station through descending back haul link through descending access link.
And; Relay station is carrying out on the downlink relay sub-frame between downlink and the descending reception; Also need the protection of certain hour length to be used for the radio frequency conversion at interval; And this downlink is difficult in completion in the CP to descending reception or the descending transfer process that receives downlink; Simultaneously in order to guarantee the compatibility to LTE user, regulation will protect at interval and be arranged in the descending backhaul subframe at present, sacrifice a part of time interval resource in the descending backhaul subframe and avoid occurring producing interference between downlink end and the receiving terminal of relay station self.
At present, descending backhaul subframe structure configuration specifically comprises two slot structural arrangements in the subframe, i.e. the starting point of the descending backhaul transport among the slot and terminal point configuration.But as stated, protection has taken a part of time interval resource in the descending backhaul subframe at interval, and therefore, the structural arrangements of descending backhaul subframe will receive corresponding restriction.And for different relay station definition statuses, said restriction also is different.Stipulate that at present relay station has two kinds of definition statuses, is respectively synchronous regime and asynchronous regime.If the timing of relay station access link downlink transfer is alignd with the timing of base station down transmission, claim that then this relay station is in synchronous regime, otherwise be in asynchronous regime.Concrete; For the relay station of synchronous regime, descending backhaul subframe structure configuration comprises: in first slot, the starting point of descending backhaul transport is configured to symbol 1 or 2 or 3; Terminal point is configured to symbol 6; In second slot, the starting point of descending backhaul transport is configured to symbol 0, and terminal point is configured to symbol 5; For the relay station of asynchronous regime, the structural arrangements of descending backhaul subframe comprises: in first slot, the starting point of descending backhaul transport is configured to symbol 2 or 3; Terminal point is configured to symbol 6; In second slot, the starting point of descending backhaul transport is configured to symbol 0, and terminal point is configured to symbol 6.Shown in table 1, table 2, wherein, the descending backhaul transport starting point of first slot is regarded as this descending backhaul subframe and is carried out the starting point of downlink transfer, is configured to relay station through high-level signaling by the base station; The structural arrangements of second slot and relay station residing synchronously or asynchronous regime strict corresponding; Promptly the relay station with synchronous regime is adopted the configuration 1 in the table 2; The relay station of asynchronous regime adopts the configuration 0 in the table 2, is configured to relay station through high-level signaling and can't help the base station.
First slot structural arrangements in the descending backhaul subframe of table 1
| Configuration | Play point symbol | The |
| 0 | 1 | 6 |
| 1 | 2 | 6 |
| 2 | 3 | 6 |
Second slot structural arrangements in the descending backhaul subframe of table 2
| Configuration | Play point symbol | The |
| 0 | 0 | 6 |
| 1 | 0 | 5 |
Fig. 3 is the sketch map according to the descending backhaul subframe structure of the asynchronous regime of correlation technique, and is as shown in Figure 3, for the asynchronous regime relay station; Among first slot of descending backhaul subframe; The starting point of descending backhaul transport is configured to symbol 2 or 3, and terminal point is configured to symbol 6, in second slot; The starting point of descending backhaul transport is configured to symbol 0, and terminal point is configured to symbol 6.
Fig. 4 is the sketch map according to the descending backhaul subframe structure of the synchronous regime of correlation technique; Relay station for synchronous regime; The concrete symbol that can be used for carrying out descending backhaul transport in its descending backhaul subframe also can be along with the base station changes and different with propagation delay between relay station, and the propagation delay when between base station and relay station surpasses a certain threshold T
P_THThe time, the available symbols of second slot is that symbol 0 arrives symbol 4 in the descending backhaul subframe, symbol 5 is with unavailable.
In the correlation technique; The terminal point symbol of the relay station of synchronous regime backhaul transport on second slot of descending backhaul subframe fixed configurations is a symbol 5, still, when base station and repeater span when far away; Perhaps when relay station is moved; The relay station of this synchronous regime produces very serious interference certainly probably between descending receiving terminal and transmitting terminal, cause loading error occurring, and it is very big that systematic function and user are experienced influence.
Summary of the invention
The terminal point symbol of going up backhaul transport to second slot of the descending backhaul subframe of relay station in correlation technique fixed configurations is a symbol 5; Like this when base station and repeater span from far away or when relay station is moved; This relay station can produce between descending receiving terminal and transmitting terminal and very serious propose the present invention from the problem of disturbing; For this reason, main purpose of the present invention is to provide a kind of descending backhaul subframe structure collocation method and system, to address the above problem.
To achieve these goals, according to an aspect of the present invention, a kind of descending backhaul subframe structure collocation method is provided.
Descending backhaul subframe structure collocation method according to the present invention comprises:, to the descending propagation delay of relay station or the distance between base station and the relay station terminal point symbol of the last backhaul transport of second slot of the descending backhaul subframe of relay station and/or the definition status of relay station are configured according to the base station; Relay station is according to terminal point symbol and/or definition status, configurating downlink backhaul subframe structure.
Preferably; Be lower than or be no more than under the situation of predefined first thresholding to the descending propagation delay of relay station in the base station, the definition status that second slot of the descending backhaul subframe of relay station gone up terminal point symbol and/or the relay station of backhaul transport be configured comprise one of following: configuration terminal point symbol is that symbol 5 and/or configuration definition status are synchronous regime; Configuration terminal point symbol is that symbol 6 and/or configuration definition status are asynchronous regime.
Preferably; Surpass or be not less than under the situation of predefined second thresholding to the descending propagation delay of relay station in the base station, the definition status that second slot of the descending backhaul subframe of relay station gone up terminal point symbol and/or the relay station of backhaul transport be configured comprise one of following: configuration terminal point symbol is that symbol 4 and/or configuration definition status are synchronous regime; Configuration terminal point symbol is that symbol 6 and/or configuration definition status are asynchronous regime.
Preferably; Be lower than or be no more than under the situation of predefined the 3rd thresholding in the distance between base station and the relay station, the definition status that second slot of the descending backhaul subframe of relay station gone up terminal point symbol and/or the relay station of backhaul transport be configured comprise one of following: configuration terminal point symbol is that symbol 5 and/or configuration definition status are synchronous regime; Configuration terminal point symbol is that symbol 6 and/or configuration definition status are asynchronous regime.
Preferably; Surpass or be not less than under the situation of predefined the 4th thresholding in the distance between base station and the relay station, the definition status that second slot of the descending backhaul subframe of relay station gone up terminal point symbol and/or the relay station of backhaul transport be configured comprise one of following: configuration terminal point symbol is that symbol 4 and/or configuration definition status are synchronous regime; Configuration terminal point symbol is that symbol 6 and/or configuration definition status are asynchronous regime.
Preferably, the definition status that second slot of the descending backhaul subframe of relay station is gone up terminal point symbol and/or the relay station of backhaul transport is configured and comprises: relay station is configured terminal point symbol and/or the definition status that self second slot of descending backhaul subframe goes up backhaul transport.
Preferably, the definition status that second slot of the descending backhaul subframe of relay station is gone up terminal point symbol and/or the relay station of backhaul transport is configured and comprises: second slot of the descending backhaul subframe of relay station gone up the terminal point symbol of backhaul transport in the base station and/or the definition status of relay station is configured; The base station is informed relay station through high-level signaling and/or X2 interface signaling with configuration result.
Preferably, the definition status that second slot of the descending backhaul subframe of relay station is gone up terminal point symbol and/or the relay station of backhaul transport is configured and comprises: second slot of the descending backhaul subframe of relay station gone up the terminal point symbol of backhaul transport to the OAM module and/or the definition status of relay station is configured; The OAM module is informed relay station through the OAM signaling with configuration result.
Preferably, the OAM module informs that with configuration result relay station comprises through the OAM signaling: the OAM module is informed the base station through the OAM signaling with configuration result; The base station through high-level signaling and/or X2 interface signaling and/or directly pass-through mode inform relay station.
Preferably, after relay station received configuration result, said method also comprised: relay station is through high-level signaling and/or X2 interface signaling and/or directly transmit configuration result is informed the base station.
Preferably, high-level signaling and/or X2 interface signaling and/or OAM signaling comprise first binary sequence, and wherein first binary sequence is used for the directing terminal symbol and is configured to symbol 4, symbol 5 or symbol 6.
Preferably, high-level signaling and/or X2 interface signaling and/or OAM signaling comprise second binary sequence, and wherein second binary sequence is used for indicating timing status and is configured to synchronous regime or asynchronous regime.
To achieve these goals, according to another aspect of the present invention, a kind of descending backhaul subframe structure configuration-system is provided.
Descending backhaul subframe structure configuration-system according to the present invention comprises descending backhaul subframe structure inking device and relay station; Wherein descending backhaul subframe structure inking device comprises: first configuration module; Be used for arriving the descending propagation delay of relay station or the distance between base station and the relay station, the terminal point symbol of the last backhaul transport of second slot of the descending backhaul subframe of relay station and/or the definition status of relay station are configured according to the base station; Second configuration module is used for according to terminal point symbol and/or definition status, configurating downlink backhaul subframe structure.
Preferably, second configuration module is in the base station or is in the OAM module and perhaps is in the relay station.
The present invention is through flexible configuration this terminal point symbol and/or synchronous regime, and then configurating downlink backhaul subframe structure, can avoid descending receiving terminal of relay station and transmitting terminal to take place from interference, and then can guarantee systematic function and user's impression.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the sketch map according to the junction network structure of correlation technique;
Fig. 2 is the sketch map according to the subframe structure of correlation technique;
Fig. 3 is the sketch map according to the descending backhaul subframe structure of the asynchronous regime of correlation technique;
Fig. 4 is the sketch map according to the descending backhaul subframe structure of the synchronous regime of correlation technique;
Fig. 5 is the flow chart according to the descending backhaul subframe structure collocation method of the embodiment of the invention;
Fig. 6 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention one;
Fig. 7 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention five;
Fig. 8 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention seven;
Fig. 9 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention eight;
Figure 10 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention ten;
Figure 11 is the structured flowchart according to the descending backhaul subframe structure configuration-system of the embodiment of the invention.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the present invention.
The embodiment of the invention provides a kind of descending backhaul subframe structure collocation method.Fig. 5 is the flow chart according to the descending backhaul subframe structure collocation method of the embodiment of the invention, and is as shown in Figure 5, comprises that following step S502 is to step S504.
Step S502, is configured the terminal point symbol of the last backhaul transport of second slot of the descending backhaul subframe of relay station and/or the definition status of relay station to the descending propagation delay of relay station or the distance between base station and the relay station according to the base station.
Step S504, relay station be according to terminal point symbol and/or definition status, configurating downlink backhaul subframe structure.
In the correlation technique; The terminal point symbol of the last backhaul transport of second slot of the descending backhaul subframe of relay station fixed configurations is a symbol 5; Like this when base station and repeater span from far away or when relay station was moved, this relay station can produce very serious interference certainly between descending receiving terminal and transmitting terminal.In the embodiment of the invention, through flexible configuration this terminal point symbol and/or synchronous regime, and then configurating downlink backhaul subframe structure, can avoid descending receiving terminal of relay station and transmitting terminal to take place, and then can guarantee systematic function and user's impression from interference.
In addition; Consider that from disturbing the main cause that produces be that base station and repeater span are moved from far away or relay station; Therefore the present invention disposes terminal point symbol and/or definition status according to the base station to the descending propagation delay of relay station or the distance between base station and the relay station, thereby can directly solve from the problem of disturbing.Concrete, there are following four kinds of situation according to the base station to the descending propagation delay of relay station or distance configuration terminal point symbol and/or definition status between base station and the relay station.
Situation one is lower than or is no more than predefined thresholding T to the descending propagation delay of relay station in the base station
P_TH1The time, can dispose terminal point symbol and/or definition status through two kinds of following methods:
Method one, configuration terminal point symbol are that symbol 5 and/or configuration definition status are synchronous regime;
Method two, configuration terminal point symbol are that symbol 6 and/or configuration definition status are asynchronous regime.
Situation two surpasses or is not less than predefined thresholding T to the descending propagation delay of relay station in the base station
P_TH2The time, can dispose terminal point symbol and/or definition status through two kinds of following methods:
Method one, configuration terminal point symbol are that symbol 4 and/or configuration definition status are synchronous regime;
Method two, configuration terminal point symbol are that symbol 6 and/or configuration definition status are asynchronous regime.
This preferred embodiment can also dispose T
P_TH1≤T
P_TH2
Situation three, the distance between base station and relay station are lower than or are no more than predefined thresholding D
TH1The time, can dispose terminal point symbol and/or definition status through two kinds of following methods:
Method one, configuration terminal point symbol are that symbol 5 and/or configuration definition status are synchronous regime;
Method two, configuration terminal point symbol are that symbol 6 and/or configuration definition status are asynchronous regime.
Situation four, the distance between base station and relay station surpass or are not less than predefined thresholding D
TH2The time, can dispose terminal point symbol and/or definition status through two kinds of following methods:
Method one, configuration terminal point symbol are that symbol 4 and/or configuration definition status are synchronous regime;
Method two, configuration terminal point symbol are that symbol 6 and/or configuration definition status are asynchronous regime.
This preferred embodiment can also dispose D
TH1≤D
TH2
In addition, terminal point symbol and/or definition status are configured and can carry out through relay station self, base station or three kinds of modes of OAM module, describe respectively below.
Mode one: relay station is configured the terminal point symbol and/or the definition status of the last backhaul transport of second slot of descending backhaul subframe of self.
Mode two: second slot of the descending backhaul subframe of relay station gone up the terminal point symbol of backhaul transport in the base station and/or the definition status of relay station is configured; The base station is informed relay station through high-level signaling and/or X2 interface signaling with configuration result.
Mode three: second slot of the descending backhaul subframe of relay station gone up the terminal point symbol of backhaul transport to the OAM module and/or the definition status of relay station is configured; The OAM module is informed relay station through the OAM signaling with configuration result.
The OAM signaling of passing through that the OAM module can also be indirect in this mode three is informed relay station with configuration result, and promptly the OAM module is informed the base station through the OAM signaling with configuration result; The base station through high-level signaling and/or X2 interface signaling and/or directly pass-through mode inform relay station.
In addition, for the configuration result of non-base station configuration, can also configuration result be informed the base station, it can be informed through two kinds of following methods:
Method one, relay station are through high-level signaling and/or X2 interface signaling and/or directly transmit configuration result is informed the base station;
Method two, the OAM module is informed relay station through the OAM signaling with configuration result.
Preferably, high-level signaling and/or X2 interface signaling and/or OAM signaling comprise being used in reference to and show that the terminal point symbol is configured to the binary sequence of symbol 4, symbol 5 or symbol 6.
1., be 1 o'clock at the bit number of binary sequence, represent that the terminal point symbol is configured to 5 in the time of can disposing binary sequence for " 1 ", the configuration binary sequence is configured to 6 for " 0 " expression terminal point symbol, and is as shown in table 3.Need to prove that these mapping relations only are preferred embodiment a kind of, the mapping relations of other any employing inventive concept all should be included protection scope of the present invention in.
2., the bit number at binary sequence is 2 o'clock; Represent that the terminal point symbol is configured to 4 in the time of can disposing binary sequence for " 00 "; The configuration binary sequence is configured to 5 for " 01 " expression terminal point symbol, and the configuration binary sequence is configured to 6 for " 11 " expression terminal point symbol, and is as shown in table 4.Need to prove that these mapping relations only are preferred embodiment a kind of, the mapping relations of other any employing inventive concept all should be included protection scope of the present invention in.
Preferably, high-level signaling and/or X2 interface signaling and/or OAM signaling comprise being used in reference to and show that definition status is configured to the binary sequence of synchronous regime or asynchronous regime.Particularly, represent that definition status is configured to synchronous regime in the time of can disposing binary sequence for " 0 ", the configuration binary sequence is configured to asynchronous regime for " 0 " expression definition status.Need to prove that these mapping relations only are preferred embodiment a kind of, the mapping relations of other any employing inventive concept all should be included protection scope of the present invention in.
Second slot structural arrangements (1) in the descending backhaul subframe of table 3
| Configuration | Play point symbol | The |
| 0 | 0 | 6 |
| 1 | 0 | 5 |
Second slot structural arrangements (2) in the descending backhaul subframe of table 4
| Configuration | Play point symbol | The |
| 0 | 0 | 6 |
| 1 | 0 | 5 |
| 2 | 0 | 4 |
To combine instance that the implementation procedure of the embodiment of the invention is described in detail below.
All suppose T in following examples
P_TH1=T
P_TH2=1568T
s, D
TH1=D
TH2=15.3 kilometers, in other embodiments, T
P_TH1, T
P_TH2, D
TH1, D
TH2Also desirable other values.
Related signaling field title " pdsch-End-r11 ", " synchronization-flag-r11 " do not have particularity in following examples, can other titles exist yet.
Preferred embodiment one
This preferred embodiment one has been described base station configuration terminal point symbol and has been sent to the process of relay station.
Fig. 6 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention one, and is as shown in Figure 6, as the descending propagation delay T of relay station
P=2048T
SSurpass thresholding T
P_TH2=1568TS; Then the base station is configured to symbol 6 with the terminal point symbol of second slot in the descending backhaul subframe of relay station; And among the field pdsch-End-r11ENUMERATED (5,6) in high-level signaling RN-SubframeConfig information element, the binary sequence value of pdsch-End-r11 is configured to " 1 "; Be sent to relay station, the terminal point of second slot is configured to symbol 6 in the descending backhaul subframe of indication relay station.
Preferred embodiment two
This preferred embodiment two has been described the base station configuration definition status and has been sent to the process of relay station.
Descending propagation delay T when the base station to relay station
P=1024T
SBe lower than thresholding T
P_TH1=1568T
SThen the base station is configured to synchronous regime with the descending definition status of relay station; And among the field synchronization-flag-r11INTEGER (0,1) in high-level signaling RN-SubframeConfig information element, the binary sequence value of synchronization-flag-r11 is configured to " 0 "; Be sent to relay station, the descending definition status of indication relay station is configured to synchronous regime.
Preferred embodiment three
This preferred embodiment three has been described the base station configuration definition status and has been sent to the process of relay station.
Distance B=0.5km between base station and the relay station is lower than thresholding D
TH1=15.3km; Then the base station is configured to synchronous regime with the descending definition status of relay station; And among the field synchronization-flag-r11INTEGER (0,1) in high-level signaling RN-Subframe Config information element, the binary sequence value of synchronization-flag-r11 is configured to " 0 "; Be sent to relay station, the descending definition status of indication relay station is configured to synchronous regime.
Preferred embodiment four
This preferred embodiment four has been described base station configuration terminal point symbol and has been sent to the process of relay station.
Distance B=0.5km between base station and the relay station is lower than thresholding D
TH1=15.3km; Then the base station is configured to symbol 6 with the terminal point symbol of second slot in the descending backhaul subframe of relay station; And among the field pdsch-End-r11ENUMERATED (5,6) in high-level signaling RN-SubframeConfig information element, the binary sequence value of pdsch-End-r11 is configured to " 1 "; Be sent to relay station, the terminal point symbol of second slot is configured to symbol 6 in the descending backhaul subframe of indication relay station.
Preferred embodiment five
This preferred embodiment five has been described OAM block configuration definition status and has been sent to the base station and the process of relay station.
Fig. 7 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention five, and is as shown in Figure 7, and the base station is to the descending propagation delay T of relay station
P=1024T
SBe lower than thresholding T
P_TH1=1568T
S, then the OAM module is configured to asynchronous regime with the descending definition status of relay station.And in the OAM signaling, the binary sequence value of field synchronization-flag-r11 is configured to " 1 ", and being sent to base station and relay station, the descending definition status of indication relay station is configured to asynchronous regime.
Preferred embodiment six
This preferred embodiment six has been described base station configuration terminal point symbol and has been sent to the process of relay station.
The base station is to the descending propagation delay T of relay station
P=2048T
SSurpass thresholding T
P_TH2=1568T
SThen the base station is configured to symbol 6 with the terminal point symbol of second slot in the descending backhaul subframe of relay station; And in the X2 interface signaling; The binary sequence value of field pdsch-End-r11 is configured to " 1 ", is sent to relay station, the terminal point symbol of second slot is configured to symbol 6 in the descending backhaul subframe of indication relay station.
Preferred embodiment seven
This preferred embodiment seven has been described OAM block configuration terminal point symbol and has been sent to relay station, is forwarded to the process of base station then by relay station.
Fig. 8 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention seven, and is as shown in Figure 8, and the base station is to the descending propagation delay T of relay station
P=2048T
SSurpass thresholding T
P_TH2=1568T
SThen the OAM module is configured to symbol 4 with the terminal point symbol of second slot in the descending backhaul subframe of relay station; And in the OAM signaling, the binary sequence value of field pdsch-End-r11 is configured to " 00 ", be sent to relay station; Be forwarded to the base station by relay station again, the terminal point symbol of second slot is configured to symbol 4 in the descending backhaul subframe of indication relay station.
Preferred embodiment eight
This preferred embodiment eight has been described OAM block configuration definition status and has been sent to relay station, is forwarded to the process of base station then by relay station.
Fig. 9 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention eight, and is as shown in Figure 9, and the base station is to the descending propagation delay T of relay station
P=2048T
SSurpass thresholding T
P_TH2=1568T
SThen the OAM module is configured to synchronous regime with the descending definition status of relay station; And in the OAM signaling, the binary sequence value of field synchronization-flag-r11 is configured to " 0 ", be sent to the base station; Be forwarded to relay station by the base station again, the descending definition status of indication relay station is configured to synchronous regime.
The base station is configured to symbol 4 with the terminal point symbol of second slot in the descending backhaul subframe of relay station; And the field pdsch-End-r11ENUMERATED (4 in high-level signaling RN-SubframeConfig information element; 5) in; The binary sequence value of field pdsch-End-r11 is configured to " 0 ", is sent to relay station, the terminal point symbol of second slot is configured to symbol 4 in the descending backhaul subframe of indication relay station.
Preferred embodiment nine
This preferred embodiment nine has been described OAM block configuration definition status and has been sent to relay station, is forwarded to the process of base station then by relay station.
Distance B=0.5km between base station and the relay station is lower than thresholding D
TH1=15.3km, then the OAM module is configured to synchronous regime with the descending definition status of relay station.And in the OAM signaling, the binary sequence value of field synchronization-flag-r11 is configured to " 0 ", and be sent to the base station, be forwarded to relay station by the base station again, the descending definition status of indication relay station is configured to synchronous regime.
Preferred embodiment ten
This preferred embodiment ten has been described relay station self configuration terminal point symbol, is sent to the process of base station then.
Figure 10 is the interaction diagrams according to the descending backhaul subframe structure collocation method of the preferred embodiment of the present invention ten, and is shown in figure 10, and the base station is to the descending propagation delay T of relay station
P=2048T
SSurpass thresholding T
P_TH2=1568T
S, then relay station self is configured to symbol 6 with the terminal point symbol of second slot in the descending backhaul subframe of relay station.And in high-level signaling, the binary sequence value of field pdsch-End-r11 is configured to " 1 ", and being sent to the base station, the terminal point symbol of second slot is configured to symbol 6 in the descending backhaul subframe of indication relay station.
Preferred embodiment 11
This preferred embodiment 11 has been described relay station self configuration definition status, is sent to the process of base station then.
Distance B=0.5km between base station and the relay station is lower than thresholding D
TH1=15.3km, then relay station self is configured to synchronous regime with the descending definition status of relay station.And in high-level signaling, the binary sequence value of field synchronization-flag-r11 is configured to " 0 ", and being sent to the base station, the descending definition status of indication relay station is configured to synchronous regime.
This preferred embodiment 12 has been described base station configuration terminal point symbol and has been sent to the process of relay station.
Distance B=0.5km between base station and the relay station is lower than thresholding D
TH1=15.3km, then the base station is configured to symbol 5 with the terminal point symbol of second slot in the descending backhaul subframe of relay station, and the relay station definition status is configured to synchronous regime.And the field pdsch-End-r11ENUMERATED (4 in high-level signaling RN-SubframeConfig information element; 5) in; The binary sequence value of pdsch-End-r11 is configured to " 1 "; Be sent to relay station, the terminal point symbol of second slot is configured to symbol 5 in the descending backhaul subframe of indication relay station.
And; The field synchronization-flag-r11INTEGER (0 of base station in high-level signaling RN-SubframeConfig information element; 1) in; The binary sequence value of synchronization-flag-r11 is configured to " 0 ", is sent to relay station, the descending definition status of indication relay station is configured to synchronous regime.
Need to prove; Can in computer system, carry out in the step shown in the flow chart of accompanying drawing such as a set of computer-executable instructions; And; Though logical order has been shown in flow chart, in some cases, can have carried out step shown or that describe with the order that is different from here.
The embodiment of the invention provides a kind of descending backhaul subframe structure configuration-system, and this descending backhaul subframe structure configuration-system can be used to realize above-mentioned descending backhaul subframe structure collocation method.Figure 11 is the structured flowchart according to the descending backhaul subframe structure configuration-system of the embodiment of the invention; Shown in figure 11; Comprise descending backhaul subframe structure inking device 112 and relay station 114; Wherein descending backhaul subframe structure inking device 112 comprises first configuration module 1122 and second configuration module 1124, is described in detail in the face of its structure down.
First configuration module 1122; Be used for arriving the descending propagation delay of relay station 114 or the distance between base station and the relay station 114, the terminal point symbol of the last backhaul transport of second slot of relay station 114 descending backhaul subframes and/or the definition status of relay station 114 are configured according to the base station; Second configuration module 1124 is connected to first configuration module 1122, is used for terminal point symbol and/or definition status according to 1122 configurations of first configuration module, configurating downlink backhaul subframe structure.
Preferably, second configuration module 1124 is in the base station or is in the OAM module and perhaps is in the relay station 114.
Need to prove that the descending backhaul subframe structure configuration-system of describing among the device embodiment is corresponding to above-mentioned method embodiment, its concrete implementation procedure had been carried out detailed description in method embodiment, repeat no more at this.
In sum, according to the abovementioned embodiments of the present invention, a kind of descending backhaul subframe structure collocation method and system are provided.The present invention is through flexible configuration this terminal point symbol and/or synchronous regime, and then configurating downlink backhaul subframe structure, can avoid descending receiving terminal of relay station and transmitting terminal to take place from interference, and then can guarantee systematic function and user's impression.
Obviously, it is apparent to those skilled in the art that above-mentioned each module of the present invention or each step can realize with the general calculation device; They can concentrate on the single calculation element; Perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element; Thereby; Can they be stored in the storage device and carry out, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize by calculation element.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. a descending backhaul subframe structure collocation method is characterized in that, comprising:
, to the descending propagation delay of relay station or the distance between said base station and the said relay station terminal point symbol of the last backhaul transport of second slot of the descending backhaul subframe of said relay station and/or the definition status of said relay station are configured according to the base station;
Said relay station is according to said terminal point symbol and/or said definition status, configurating downlink backhaul subframe structure.
2. method according to claim 1; It is characterized in that; Be lower than or be no more than under the situation of predefined first thresholding to the descending propagation delay of said relay station in the base station, the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport be configured comprise one of following:
Disposing said terminal point symbol and be symbol 5 and/or disposing said definition status is synchronous regime;
Disposing said terminal point symbol and be symbol 6 and/or disposing said definition status is asynchronous regime.
3. method according to claim 1; It is characterized in that; Surpass or be not less than under the situation of predefined second thresholding to the descending propagation delay of said relay station in the base station, the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport be configured comprise one of following:
Disposing said terminal point symbol and be symbol 4 and/or disposing said definition status is synchronous regime;
Disposing said terminal point symbol and be symbol 6 and/or disposing said definition status is asynchronous regime.
4. method according to claim 1; It is characterized in that; Distance between base station and said relay station is lower than or is no more than under the situation of predefined the 3rd thresholding, the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport be configured comprise one of following:
Disposing said terminal point symbol and be symbol 5 and/or disposing said definition status is synchronous regime;
Disposing said terminal point symbol and be symbol 6 and/or disposing said definition status is asynchronous regime.
5. method according to claim 1; It is characterized in that; Distance between base station and said relay station surpasses or is not less than under the situation of predefined the 4th thresholding, the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport be configured comprise one of following:
Disposing said terminal point symbol and be symbol 4 and/or disposing said definition status is synchronous regime;
Disposing said terminal point symbol and be symbol 6 and/or disposing said definition status is asynchronous regime.
6. method according to claim 1; It is characterized in that the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport is configured and comprises: said relay station is configured terminal point symbol and/or the definition status that self second slot of descending backhaul subframe goes up backhaul transport.
7. method according to claim 1 is characterized in that, the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport is configured and comprises:
Second slot of the descending backhaul subframe of said relay station gone up the terminal point symbol of backhaul transport in the base station and/or the definition status of said relay station is configured;
Said base station is informed said relay station through high-level signaling and/or X2 interface signaling with configuration result.
8. method according to claim 1 is characterized in that, the definition status that second slot of the descending backhaul subframe of said relay station gone up terminal point symbol and/or the said relay station of backhaul transport is configured and comprises:
Second slot of the descending backhaul subframe of said relay station gone up the terminal point symbol of backhaul transport to oam OAM module and/or the definition status of said relay station is configured;
Said OAM module is informed said relay station through the OAM signaling with configuration result.
9. method according to claim 8 is characterized in that, said OAM module informs that with configuration result said relay station comprises through the OAM signaling:
Said OAM module is informed the base station through said OAM signaling with said configuration result;
Said base station through high-level signaling and/or X2 interface signaling and/or directly pass-through mode inform said relay station.
10. according to each described method in the claim 6 to 9; It is characterized in that; After said relay station received said configuration result, said method also comprised: said relay station is through high-level signaling and/or X2 interface signaling and/or directly transmit said configuration result is informed the base station.
11. according to each described method in the claim 6 to 9; It is characterized in that; Said high-level signaling and/or said X2 interface signaling and/or said OAM signaling comprise first binary sequence, and wherein said first binary sequence is used to indicate said terminal point symbol to be configured to symbol 4, symbol 5 or symbol 6.
12. according to each described method in the claim 6 to 9; It is characterized in that; Said high-level signaling and/or said X2 interface signaling and/or said OAM signaling comprise second binary sequence, and wherein said second binary sequence is used to indicate said definition status to be configured to synchronous regime or asynchronous regime.
13. a descending backhaul subframe structure configuration-system is characterized in that, comprises descending backhaul subframe structure inking device and relay station, wherein said descending backhaul subframe structure inking device comprises:
First configuration module; Be used for arriving the descending propagation delay of said relay station or the distance between said base station and the said relay station, the terminal point symbol of the last backhaul transport of second slot of the descending backhaul subframe of said relay station and/or the definition status of said relay station are configured according to the base station;
Second configuration module is used for according to said terminal point symbol and/or said definition status configurating downlink backhaul subframe structure.
14. system according to claim 13 is characterized in that, said second configuration module is in the base station or is in the oam OAM module and perhaps is in the said relay station.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110139205.4A CN102801461B (en) | 2011-05-26 | Downlink return sub-frame structure configuration method and system | |
| PCT/CN2012/075442 WO2012159534A1 (en) | 2011-05-26 | 2012-05-14 | Method and system for configuring structure of downlink backhaul subframe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110139205.4A CN102801461B (en) | 2011-05-26 | Downlink return sub-frame structure configuration method and system |
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| Publication Number | Publication Date |
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| CN102801461A true CN102801461A (en) | 2012-11-28 |
| CN102801461B CN102801461B (en) | 2016-12-14 |
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| WO2019110011A1 (en) * | 2017-12-08 | 2019-06-13 | 华为技术有限公司 | Resource allocation method and device |
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| WO2010087174A1 (en) * | 2009-01-29 | 2010-08-05 | パナソニック株式会社 | Base station apparatus and transmission method |
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| WO2010087174A1 (en) * | 2009-01-29 | 2010-08-05 | パナソニック株式会社 | Base station apparatus and transmission method |
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| WO2012159534A1 (en) | 2012-11-29 |
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