CN105208621A - Communication method, terminal and base station - Google Patents
Communication method, terminal and base station Download PDFInfo
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- CN105208621A CN105208621A CN201510502564.XA CN201510502564A CN105208621A CN 105208621 A CN105208621 A CN 105208621A CN 201510502564 A CN201510502564 A CN 201510502564A CN 105208621 A CN105208621 A CN 105208621A
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- terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
- H04W40/22—Communication route or path selection, e.g. power-based or shortest path routing using selective relaying for reaching a BTS [Base Transceiver Station] or an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a communication method. The communication method comprises steps that, a system information block message sent by a base station is received by a terminal, and the system information block message comprises parameter information used for selecting a relay terminal, whether the terminal satisfies conditions for being the relay terminal is determined by the terminal itself according to the parameter information; if the terminal satisfies the conditions for being the relay terminal, capability information of the terminal is reported to the base station, so the relay terminal is selected from various terminals by the base station according to the capability information reported by the various terminals within a signal coverage scope for communication. The invention further discloses the terminal and the base station. Through the method, the terminal can be initialized to be the relay terminal for relay communication.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of method of communication, terminal and base station.
Background technology
Equipment and equipment (Device-to-Device, be called for short D2D) communication be a kind of under the control of system, directly carried out the new technique communicated by reuse pattern resource between permission terminal, it can increase frequency spectrum efficiency of cellular communication system, reduce terminal transmit power, solve the problem of wireless communication system frequency spectrum resource scarcity to a certain extent.The D2D communication technology specifically refers to can carry out direct communication between terminal, and does not need the transmission through equipment such as base stations or forwarding.D2D can be deployed in cellular network coverage and/or outside network coverage.The function of link terminal is the new features introduced in D2D communication, its deployment is very flexible, network coverage can be expanded when not increasing conventional network equipment, having important application in fields such as business telecommunication, public safety communication (as earthquake, war).Therefore D2D communication and link terminal have a good application prospect.
Due to the terminal that the terminal under base station range is just common before becoming link terminal, therefore need to carry out initialization to it, so that it carries out data retransmission for base station and remote terminal, complete the effect of relaying.But in existing protocol specification, terminal is not carried out to the concrete scheme of Repeating initialization.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of method of communication, terminal and base station.Link terminal how is initialized as to complete the problem of trunking traffic to solve terminal.
In order to solve the problems of the technologies described above, embodiment of the present invention first aspect provides a kind of method of communication, comprising:
Terminal obtains the system information block message that base station sends, and comprises the parameter information for selecting link terminal in described system information block message;
According to described parameter information, described terminal judges whether self meets the condition becoming link terminal;
If described terminal meets the condition becoming link terminal, then reporting terminal capacity information is to described base station so that described base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
Wherein, described terminal obtains the system information block message that base station sends, and comprising:
Can described terminal prejudges self according to power capacity and/or Reference Signal Received Power become link terminal;
If described terminal prejudges self according to power capacity and/or Reference Signal Received Power can become link terminal, then send the Repeating initialization request message extremely described base station for asking to become link terminal;
Receive the system information block message that described base station returns.
Wherein, described terminal obtains the system information block message that base station sends, and comprising:
The system information block message of base station periodic broadcast described in described terminal monitoring.
Wherein, described terminal obtains the system information block message that base station sends, and comprising:
Can described terminal prejudges self according to power capacity and/or Reference Signal Received Power become link terminal;
If described terminal prejudges self according to power capacity and/or Reference Signal Received Power can become link terminal, then monitor the system information block message of described base station broadcast.
Wherein, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Wherein, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Wherein, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Wherein, obtain the system information block message of base station transmission in described terminal before, also comprise:
Monitor the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, wherein, information corresponding to described relay request comprises initiates the remote terminal quantity of relay request and/or the priority of relay request;
The information corresponding according to described relay request and/or described terminal ability information determine whether to perform prejudges according to power capacity and/or Reference Signal Received Power the step that can self become link terminal.
Embodiment of the present invention second aspect provides a kind of method of communication, comprising:
Base station transmission system block of information message, to terminal, comprises the parameter information for selecting link terminal in described system information block message;
After described terminal to judge according to described parameter information self to meet and becomes the condition of link terminal, described base station receives the terminal ability information of described terminal to report;
Terminal ability information selected link terminal from each terminal described according to each terminal to report in described base station signal coverage communicates.
Wherein, described base station transmission system block of information message, to terminal, comprising:
After described terminal to be prejudged according to power capacity and/or Reference Signal Received Power and self can be become link terminal, receive the Repeating initialization request message for asking to become link terminal that described terminal sends;
Retrieval system block of information message is to described terminal.
Wherein, described base station transmission system block of information message, to terminal, comprising:
Described base station periodic broadcast system information block message.
Wherein, if described base station receives the Repeating initialization request message exceeding preset times in preset period of time, then extend the cycle of broadcast system information block message.
Wherein, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Wherein, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Wherein, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Wherein, before base station transmission system block of information message to terminal, also comprise:
Obtain the relaying demand of current remote terminal and/or the priority of relay request;
According to the relaying demand of current remote terminal and/or the priority selection cycle broadcast system information block message of relay request or be only the terminal retrieval system block of information message sending Repeating initialization request message when receiving Repeating initialization request message.
Correspondingly, the embodiment of the present invention third aspect provides a kind of terminal, comprising:
Acquiring unit, for obtaining the system information block message that base station sends, comprises the parameter information for selecting link terminal in described system information block message;
Judging unit, for judging according to described parameter information whether described terminal meets the condition becoming link terminal;
Report unit, if meet the condition becoming link terminal for described terminal, then reporting terminal capacity information is to described base station so that described base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
Wherein, described acquiring unit specifically for:
Prejudge described terminal according to power capacity and/or Reference Signal Received Power and can become link terminal;
If described terminal can become link terminal, then send the Repeating initialization request message extremely described base station for asking to become link terminal;
Receive the system information block message that described base station returns.
Wherein, described acquiring unit specifically for:
Monitor the system information block message of described base station periodic broadcast.
Wherein, described acquiring unit specifically for:
Prejudge described terminal according to power capacity and/or Reference Signal Received Power and can become link terminal;
If described terminal can become link terminal, then monitor the system information block message of described base station broadcast.
Wherein, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Wherein, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Wherein, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Wherein, also comprise:
Determining unit, for before the system information block message of described terminal acquisition base station transmission, monitor the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, wherein, the information that described relay request is corresponding comprises initiates the remote terminal quantity of relay request and/or the priority of relay request;
The information corresponding according to described relay request and/or described terminal ability information determine whether to perform prejudges according to power capacity and/or Reference Signal Received Power the step that can self become link terminal.
Embodiment of the present invention fourth aspect provides a kind of base station, comprising:
Transmitting element, for transmitting system block of information message to terminal, comprises the parameter information for selecting link terminal in described system information block message;
Receiving element, after judging according to described parameter information in described terminal self to meet and becoming the condition of link terminal, receives the terminal ability information of described terminal to report;
Selected cell, for communicating according to the terminal ability information of each terminal to report in described base station signal coverage selected link terminal from each terminal described.
Wherein, described transmitting element specifically for:
After described terminal to be prejudged according to power capacity and/or Reference Signal Received Power and self can be become link terminal, receive the Repeating initialization request message for asking to become link terminal that described terminal sends;
Retrieval system block of information message is to described terminal.
Wherein, described transmitting element specifically for:
Periodic broadcast system information block message.
Wherein, described transmitting element also for:
Exceed the Repeating initialization request message of preset times if receive in preset period of time, then extend the cycle of broadcast system information block message.
Wherein, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Wherein, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Wherein, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Wherein, described transmitting element also for: before transmitting system block of information message to terminal, obtain the relaying demand of current remote terminal and/or the priority of relay request;
According to the relaying demand of current remote terminal and/or the priority selection cycle broadcast system information block message of relay request or be only the terminal retrieval system block of information message sending Repeating initialization request message when receiving Repeating initialization request message.
Implement the embodiment of the present invention, there is following beneficial effect:
By obtaining the system information block message that base station sends, thus learn the parameter information for selecting link terminal, according to these parameter informations, terminal can determine whether self meets the condition becoming link terminal, and meet in reporting terminal capacity information to base station, make base station optimum terminal can be selected as link terminal from the terminal of reporting information, thus complete the process of Repeating initialization, make terminal can carry out trunking traffic as link terminal, fill up the blank of existing protocol specification, being beneficial to link terminal and base station for remote terminal provides better relay services.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the first embodiment of the method that the present invention communicates;
Fig. 2 is the Signalling exchange schematic diagram of the second embodiment of the method that the present invention communicates;
Fig. 3 is the Signalling exchange schematic diagram of the 3rd embodiment of the method that the present invention communicates;
Fig. 4 is the Signalling exchange schematic diagram of the 4th embodiment of the method that the present invention communicates;
Fig. 5 is the schematic flow sheet of the 5th embodiment of the method that the present invention communicates;
Fig. 6 is the composition schematic diagram of the first embodiment of terminal of the present invention;
Fig. 7 is the composition schematic diagram of the second embodiment of terminal of the present invention;
Fig. 8 is the composition schematic diagram of embodiment of the present invention base station.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, be the schematic flow sheet of the first embodiment of the method for the present invention's communication, in the present embodiment, said method comprising the steps of:
S101, terminal obtains system information block (SystemInformationBlock the is called for short SIB) message that base station sends.
Wherein, the parameter information for selecting link terminal is comprised in described system information block message.These parameter informations can as the standard of base station selected link terminal.
Alternatively, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power (ReferenceSignalReceivingPower, be called for short RSRP) threshold value and the number of times threshold value of cell change in Preset Time.
Wherein, RSRP is one of the key parameter and physical layer measurement demand that can represent wireless signal strength in LTE network, is the mean value carrying the signal power that all resource particle (RE) of reference signal receive in certain symbol.When only having the RSRP numerical value of terminal to reach certain threshold value, terminal just may use as link terminal; In Preset Time, the number of times of cell change then can characterize the stability of terminal, if its number of times changed in Preset Time was as 24 hours is too much, when exceeding threshold value, then do not meet the standard of link terminal, could be better during number of times threshold value only lower than setting stable provide relay services for remote terminal.
It should be noted that, two threshold values herein can be arranged when equipment dispatches from the factory by device fabrication manufacturer or provide some setting options to select for user, also can by User Defined, and the embodiment of the present invention is not limited in any way.
Alternatively, except above-mentioned two parameter informations, described for selecting the parameter information of link terminal, at least one in following information can also be comprised:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
In 3GPP technology, be secondary link by the link definition between D2D terminal, and define the two spike-type cultivars method of salary distribution: scheduling method and resource pool ideoelectotype.When terminal is in base station network coverage, any one mode can be adopted to carry out Resourse Distribute according to the configuration of base station; When adopting resource pool ideoelectotype, resource pool information from base station is by wireless heterogeneous networks (RadioResourceControl, be called for short RRC) (SIB18) setting, and this resource pool information of terminal in coverage is informed by the mode of broadcast.And for can be used as the terminal of link terminal, base station continue in selecting terminal time, can also setting power threshold value screen, and power threshold can also carry out the differentiation of notch cuttype.Such as, be divided into three power threshold, respectively the ability of corresponding different stage, when the power of terminal reaches different threshold values, base station just can select terminal as suitable link terminal according to its ability.
And base station can also be selected terminal by the quantity threshold value of the remote terminal of setting service.Wherein, whether the remote terminal that terminal can be monitored in its model coverage exceedes its service ability, if exceed, then can not carry out the initialization of link terminal, or also can carry out Repeating initialization but exclude the remote terminal that partial distance is comparatively far away or signal is more weak when relay services.And when base station set in reference information the quantity of service that must meet require time, then terminal must reach the requirement of quantity threshold value, just may by base station selected as link terminal.
It should be noted that, above parameter information can limit separately, also can carry out the restriction of combination in any, thus realizes whether becoming link terminal to terminal and selecting flexibly and filter.
S102, according to described parameter information, described terminal judges whether self meets the condition becoming link terminal.If meet, then perform step S103, otherwise without the need to carrying out any process.
Particularly, after terminal gets the parameter information for selecting link terminal from SIB message, just can carry out contrasting and mating according to these parameter informations.If terminal can meet all conditions, the step performing Repeating initialization just can be continued, otherwise, then illustrate that terminal does not possess the ability becoming link terminal, without the need to carrying out Repeating initialization again.
S103, reporting terminal capacity information is to described base station so that described base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
Alternatively, the terminal being positioned at base station signal coverage can be 0, also can be one or more, and wherein, the terminal quantity possessing relay capabilities also may be 0, one or more.After terminal meets the requirement of link terminal by the judgement of parameter information, just can by this result signals base, when satisfactory terminal quantity is greater than two and the link terminal quantity of reply current hop demand is less than or equals satisfactory terminal quantity, base station just can be selected each terminal according to the terminal ability information of each terminal to report or distribute.Such as, qualified terminal has two, but every ability information of terminal A is all better than terminal B, and now only needs a terminal A just can meet the relaying demand of remote terminal, then base station can from wherein selecting terminal A as link terminal; If desired two terminals could meet the relaying demand of remote terminal, then base station can select terminal A and terminal B as link terminal; If a ability of terminal A is better than terminal B, and the b ability of terminal A is weaker than terminal B, then can determine to select which terminal as link terminal according to the degree of dependence of the relaying demand of remote terminal to a ability and b ability.
Alternatively, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Wherein, terminal power information, as the basis of relay services, has very important effect, even if other abilities of terminal are strong again, as signal quality is high, the remote terminal quantity that can serve is large, if but its electricity is not enough to support relay services, then still need to abandon when selecting.Satisfy the demands for electricity, and possess the ability of scheduling of resource, PSRP is high, the terminal that the maximum quantity of the remote terminal that can serve is large, can prioritizing selection as link terminal.
By obtaining the system information block message that base station sends, thus learn the parameter information for selecting link terminal, according to these parameter informations, terminal can determine whether self meets the condition becoming link terminal, and meet in reporting terminal capacity information to base station, make base station optimum terminal can be selected as link terminal from the terminal of reporting information, thus complete the process of Repeating initialization, make terminal can carry out trunking traffic as link terminal, fill up the blank of existing protocol specification, being beneficial to link terminal and base station for remote terminal provides better relay services.
Please refer to Fig. 2, for the Signalling exchange schematic diagram of the second embodiment of the method for the present invention's communication, in the present embodiment, the framework of whole communication system comprises base station, terminal 1 and terminal 2, wherein, terminal 1 is for possessing the terminal of relay capabilities, can Repeating initialization be completed after the flow process described in the present embodiment, carry out the functions such as data retransmission as link terminal.Terminal 2 is remote terminal, possesses relaying demand.Particularly, the interaction flow of three comprises the following steps:
1. can terminal 1 prejudges self according to power capacity and/or Reference Signal Received Power become link terminal.
Herein terminal 1 can according to current detection to some data judge, also can judge according to historical data, the embodiment of the present invention is not limited in any way.
2. can become link terminal if prejudge, then send Repeating initialization request message for asking to become link terminal to base station.
3. base station in response relay request initial message, retrieval system block of information message is to terminal 1.
4. according to the parameter information that system information block message comprises, terminal 1 judges whether self meets the condition becoming link terminal.
5. if terminal 1 meets the condition becoming link terminal, then reporting terminal capacity information is to base station.
6. base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
If 7. terminal 1 can become link terminal, base station feedback RRC connects replacement message.
8. terminal 1 becomes link terminal.
9. broadcast relay notification message.Inform that the remote terminal in its signal cover can provide relay services.
In embodiments of the present invention, because terminal needs to carry out twice judgement, first the pre-judgement of relay condition is first carried out, and initiatively report Repeating initialization request message to base station, the Repeating initialization tendency of signals base oneself, make relaying process of establishing the most initiatively, the relay request of such remote terminal and terminal 2 can be responded faster; And base station does not need active broadcast to comprise the SIB message of the parameter information as choice criteria, therefore can save signaling consumption in a large number; In addition, the terminal having in its signal cover and how much possess relay capabilities can also be recognized comparatively easily in base station, facilitate supervisory relay service process, Preliminary screening can go out more suitable terminal and serve as link terminal, be also convenient to subsequent remote terminal and carry out relay selection.
Please refer to Fig. 3, is the Signalling exchange schematic diagram of the 3rd embodiment of the method for the present invention's communication; In the present embodiment, the framework of whole communication system comprises base station, terminal 1 and terminal 2, and wherein, terminal 1, for possessing the terminal of relay capabilities, can complete Repeating initialization, carry out the functions such as data retransmission as link terminal after the flow process described in the present embodiment.Terminal 2 is remote terminal, possesses relaying demand.Particularly, the interaction flow of three comprises the following steps:
1. terminal 1 monitors the system information block message of base station periodic broadcast.
2. base station periodic broadcast system information block message.
3. according to the parameter information that system information block message comprises, terminal 1 judges whether self meets the condition becoming link terminal.
4. if terminal 1 meets the condition becoming link terminal, then reporting terminal capacity information is to base station.
5. base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
If 6. terminal 1 can become link terminal, then base station feedback RRC connects replacement message.
7. terminal 1 becomes link terminal.
8. broadcast relay notification message.Inform that the remote terminal in its signal cover can provide relay services.
In an embodiment, terminal is without the need to carrying out twice judgement namely for the second embodiment, the pre-process judged can be saved, only need monitor the SIB message of base station broadcast, and judge whether self meets relaying requirement according to the parameter information wherein carried, if meet, and the terminal ability information feeding back self is to base station, thus can reduce terminal and carry out flow process that the pre-deterministic process of relaying brings and corresponding energy consumption.
Please refer to Fig. 4, is the Signalling exchange schematic diagram of the 4th embodiment of the method for the present invention's communication.In the present embodiment, the framework of whole communication system comprises base station, terminal 1 and terminal 2, and wherein, terminal 1, for possessing the terminal of relay capabilities, can complete Repeating initialization, carry out the functions such as data retransmission as link terminal after the flow process described in the present embodiment.Terminal 2 is remote terminal, possesses relaying demand.Particularly, the interaction flow of three comprises the following steps:
1. can terminal 1 prejudges self according to power capacity and/or Reference Signal Received Power become link terminal.
2. can become link terminal if prejudge, then monitor the system information block message of base station broadcast.
3. the system information block message of base station periodic broadcast.
4. according to the parameter information that system information block message comprises, terminal 1 judges whether self meets the condition becoming link terminal.
5. if terminal 1 meets the condition becoming link terminal, then reporting terminal capacity information is to base station.
6. base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
If 7. terminal 1 can become link terminal, base station feedback RRC connects replacement message.
8. terminal 1 becomes link terminal.
9. broadcast relay notification message.Inform that the remote terminal in its signal cover can provide relay services.
In the present embodiment, the terminal performing relay condition anticipation cutout journey does not initiatively send Repeating initialization request message to show that its relaying is inclined to base station, but after listening to the SIB message of base station broadcast, then respond, trigger the flow process of carrying out second time judgement according to parameter information.Compared to the second embodiment, although because terminal does not have initiatively signals base relaying tendency to cause relaying process of establishing speed to reduce, but therefore can reduce the consumption that terminal to report message is brought also, between Repeating initialization speed and terminals consume, achieve balance.
By the description of the above second to the 4th embodiment, three kinds of modes of Repeating initialization of the present invention are described, in addition, alternatively, obtain the system information block message of base station transmission in described terminal before, also comprise:
Monitor the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, wherein, information corresponding to described relay request comprises initiates the remote terminal quantity of relay request and/or the priority of relay request; The priority of relay request herein can be regarded as the urgency level of relay task, and priority is higher, and relay task is more urgent, needs to process as early as possible.
The information corresponding according to described relay request and/or described terminal ability information determine whether to perform prejudges according to power capacity and/or Reference Signal Received Power the step that can self become link terminal.
Therefore, terminal is by monitoring the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, just can select whether to carry out " relay condition judges in advance " according to the ability information of these information and terminal self, also corresponding can open the mechanism whether returning SIB message according to relay request initial message again in conjunction with base station side, thus realize the flexible switching of above-mentioned three kinds of Repeating initialization modes.Such as, if what current system performed is Repeating initialization mode in the 4th embodiment, but the quantity of system remote terminal increases suddenly, relaying demand increases, this just requires being swift in response of the centering request of continuing, therefore the function that the terminal of relay capabilities can judge in advance according to the quantity unlatching relaying of the relay request listening to initiation is now had, base station then can corresponding management function of opening Repeating initialization request message, and system is converted to the mode in the second embodiment by the mode of the 4th embodiment; Again such as, what current system performed is mode in the second embodiment, but the relaying demand of remote terminal is reducing gradually, there is the terminal residual electricity of relay capabilities also and inadequate simultaneously, then now there is the function that the terminal of relay capabilities can judge in advance according to the quantity closedown relaying of the initiation relay request listened to, base station also can corresponding management function of closing Repeating initialization request, the mode that system is converted in the 4th embodiment by the mode in the second embodiment carries out Repeating initialization, thus realizes the flexible switching of various mode.
Please refer to Fig. 5, is the schematic flow sheet of the 5th embodiment of the method for the present invention's communication; In the present embodiment, said method comprising the steps of:
S501, base station transmission system block of information message is to terminal.
Wherein, the parameter information for selecting link terminal is comprised in described system information block message.
Alternatively, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Alternatively, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Alternatively, described base station transmission system block of information message, to terminal, comprising:
After described terminal to be prejudged according to power capacity and/or Reference Signal Received Power and self can be become link terminal, receive the Repeating initialization request message for asking to become link terminal that described terminal sends;
Retrieval system block of information message is to described terminal.
Or comprise: described base station periodic broadcast system information block message.
Wherein, the concrete reciprocal process of base station and terminal can refer to the second embodiment shown in Fig. 2 to Fig. 4 of the present invention to the 4th embodiment, repeats no more herein.
If described base station receives the Repeating initialization request message exceeding preset times in preset period of time, then extend the cycle of broadcast system information block message.Thus avoid too much terminal to send Repeating initialization request, reduce base station and terminal energy consumption.
S502, after described terminal to judge according to described parameter information self to meet and becomes the condition of link terminal, described base station receives the terminal ability information of described terminal to report.
S503, the terminal ability information selected link terminal from each terminal described according to each terminal to report in described base station signal coverage communicates.
Alternatively, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Alternatively, before base station transmission system block of information message to terminal, also comprise:
Obtain the relaying demand of current remote terminal and/or the priority of relay request;
According to the relaying demand of current remote terminal and/or the priority selection cycle broadcast system information block message of relay request or be only the terminal retrieval system block of information message sending Repeating initialization request message when receiving Repeating initialization request message.Thus realize the opening and closing of Repeating initialization management function.
Please refer to Fig. 6, is the composition schematic diagram of the first embodiment of terminal of the present invention; In the present embodiment, described terminal comprises:
Acquiring unit 100, for obtaining the system information block message that base station sends, comprises the parameter information for selecting link terminal in described system information block message;
Judging unit 200, for judging according to described parameter information whether described terminal meets the condition becoming link terminal;
Report unit 300, if meet the condition becoming link terminal for described terminal, then reporting terminal capacity information is to described base station so that described base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
Alternatively, described acquiring unit 100 specifically for:
Prejudge described terminal according to power capacity and/or Reference Signal Received Power and can become link terminal;
If described terminal can become link terminal, then send the Repeating initialization request message extremely described base station for asking to become link terminal;
Receive the system information block message that described base station returns.
Alternatively, described acquiring unit 100 specifically for:
Monitor the system information block message of described base station periodic broadcast.
Alternatively, described acquiring unit 100 specifically for:
Prejudge described terminal according to power capacity and/or Reference Signal Received Power and can become link terminal;
If described terminal can become link terminal, then monitor the system information block message of described base station broadcast.
Alternatively, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Alternatively, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Alternatively, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Please refer to Fig. 7, is the composition schematic diagram of the second embodiment of terminal of the present invention; In the present embodiment, described terminal, compared with terminal shown in Fig. 6, also comprises:
Determining unit 400, for before the system information block message of described terminal acquisition base station transmission, monitor the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, wherein, the information that described relay request is corresponding comprises initiates the remote terminal quantity of relay request and/or the priority of relay request;
The information corresponding according to described relay request and/or described terminal ability information determine whether to perform prejudges according to power capacity and/or Reference Signal Received Power the step that can self become link terminal.
Above acquiring unit 100, judging unit 200, unit 300 and determining unit 400 is reported independently to exist, also can integratedly arrange, acquiring unit 100, judging unit 200, report unit 300 or determining unit 400 to arrange separately independent of the processor of terminal in the form of hardware, and the form that form can be microprocessor is set; Also can be embedded in the processor of this terminal in the form of hardware, can also be stored in the memory of this terminal in a software form, so that the processor of this terminal calls and performs above acquiring unit 100, judging unit 200, reports the operation of unit 300 and determining unit 400 correspondence.
Certainly, acquiring unit 100 and report unit 300 also can as the interface circuit of this terminal, can with judging unit 200 or determining unit 400 integrated, also can independently arrange.
Such as, in second embodiment (embodiment shown in Fig. 7) of terminal of the present invention, judging unit 200 can be the processor of this terminal, and acquiring unit 100, report the function of unit 300 and determining unit 400 can be embedded in this processor, also can arrange separately independent of processor, also can be stored in memory in the form of software, be called by processor and realize its function.The embodiment of the present invention does not do any restriction.Above processor can be CPU (CPU), microprocessor, single-chip microcomputer etc.
Please refer to Fig. 8, be the composition schematic diagram of embodiment of the present invention base station, in the present embodiment, described base station comprises:
Transmitting element 500, for transmitting system block of information message to terminal, comprises the parameter information for selecting link terminal in described system information block message;
Receiving element 600, after judging according to described parameter information in described terminal self to meet and becoming the condition of link terminal, receives the terminal ability information of described terminal to report;
Selected cell 700, for communicating according to the terminal ability information of each terminal to report in described base station signal coverage selected link terminal from each terminal described.
Alternatively, described transmitting element 500 specifically for:
After described terminal to be prejudged according to power capacity and/or Reference Signal Received Power and self can be become link terminal, receive the Repeating initialization request message for asking to become link terminal that described terminal sends;
Retrieval system block of information message is to described terminal.
Alternatively, described transmitting element 500 specifically for:
Periodic broadcast system information block message.
Alternatively, described transmitting element 500 also for:
Exceed the Repeating initialization request message of preset times if receive in preset period of time, then extend the cycle of broadcast system information block message.
Alternatively, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
Alternatively, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
Alternatively, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
Alternatively, described transmitting element 500 also for: before transmitting system block of information message to terminal, obtain the relaying demand of current remote terminal and/or the priority of relay request;
According to the relaying demand of current remote terminal and/or the priority selection cycle broadcast system information block message of relay request or be only the terminal retrieval system block of information message sending Repeating initialization request message when receiving Repeating initialization request message.
Above transmitting element 500, receiving element 600 and selected cell 700 can independently exist, also can integratedly arrange, transmitting element 500, receiving element 600 or selected cell 700 can be arranged separately independent of the processor of base station in the form of hardware, and arrange the form that form can be microprocessor; Also can be embedded in the processor of this base station in the form of hardware, can also be stored in the memory of this base station in a software form, so that the processor of this base station calls the operation performing above transmitting element 500, receiving element 600 and selected cell 700 correspondence.
Certainly, transmitting element 500 and receiving element 600 also can as the interface circuits of this base station, can be integrated with selected cell 700, also can independently arrange.
Such as, in the embodiment (embodiment shown in Fig. 8) of base station of the present invention, selected cell 700 can be the processor of this base station, and the function of transmitting element 500 and receiving element 600 can be embedded in this processor, also can arrange separately independent of processor, also can be stored in memory in the form of software, be called by processor and realize its function.The embodiment of the present invention does not do any restriction.Above processor can be CPU (CPU), microprocessor, single-chip microcomputer etc.
It should be noted that, each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiment, between each embodiment identical similar part mutually see.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part illustrates see the part of embodiment of the method.
By the description of above-described embodiment, the present invention has the following advantages:
By obtaining the system information block message that base station sends, thus learn the parameter information for selecting link terminal, according to these parameter informations, terminal can determine whether self meets the condition becoming link terminal, and meet in reporting terminal capacity information to base station, make base station optimum terminal can be selected as link terminal from the terminal of reporting information, thus complete the process of Repeating initialization, make terminal can carry out trunking traffic as link terminal, fill up the blank of existing protocol specification, being beneficial to link terminal and base station for remote terminal provides better relay services.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-OnlyMemory is called for short ROM) or random store-memory body (RandomAccessMemory is called for short RAM) etc.
Above disclosedly be only present pre-ferred embodiments, certainly can not limit the interest field of the present invention with this, therefore according to the equivalent variations that the claims in the present invention are done, still belong to the scope that the present invention is contained.
Claims (32)
1. a method for communication, is characterized in that, comprising:
Terminal obtains the system information block message that base station sends, and comprises the parameter information for selecting link terminal in described system information block message;
According to described parameter information, described terminal judges whether self meets the condition becoming link terminal;
If described terminal meets the condition becoming link terminal, then reporting terminal capacity information is to described base station so that described base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
2. as claimed in claim 1 method, it is characterized in that, described terminal obtains the system information block message that base station sends, and comprising:
Can described terminal prejudges self according to power capacity and/or Reference Signal Received Power become link terminal;
If described terminal prejudges self according to power capacity and/or Reference Signal Received Power can become link terminal, then send the Repeating initialization request message extremely described base station for asking to become link terminal;
Receive the system information block message that described base station returns.
3. the method for claim 1, is characterized in that, described terminal obtains the system information block message that base station sends, and comprising:
The system information block message of base station periodic broadcast described in described terminal monitoring.
4. the method for claim 1, is characterized in that, described terminal obtains the system information block message that base station sends, and comprising:
Can described terminal prejudges self according to power capacity and/or Reference Signal Received Power become link terminal;
If described terminal prejudges self according to power capacity and/or Reference Signal Received Power can become link terminal, then monitor the system information block message of described base station broadcast.
5. the method for claim 1, is characterized in that, described for selecting the parameter information of link terminal, comprises Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
6. method as claimed in claim 5, is characterized in that, described for selecting the parameter information of link terminal, also comprises at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
7. the method for claim 1, is characterized in that, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
8. the method as described in any one of claim 2-7, is characterized in that, before obtaining the system information block message of base station transmission, also comprises in described terminal:
Monitor the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, wherein, information corresponding to described relay request comprises initiates the remote terminal quantity of relay request and/or the priority of relay request;
The information corresponding according to described relay request and/or described terminal ability information determine whether to perform prejudges according to power capacity and/or Reference Signal Received Power the step that can self become link terminal.
9. a method for communication, is characterized in that, comprising:
Base station transmission system block of information message, to terminal, comprises the parameter information for selecting link terminal in described system information block message;
After described terminal to judge according to described parameter information self to meet and becomes the condition of link terminal, described base station receives the terminal ability information of described terminal to report;
Terminal ability information selected link terminal from each terminal described according to each terminal to report in described base station signal coverage communicates.
10. method as claimed in claim 9, it is characterized in that, described base station transmission system block of information message, to terminal, comprising:
After described terminal to be prejudged according to power capacity and/or Reference Signal Received Power and self can be become link terminal, receive the Repeating initialization request message for asking to become link terminal that described terminal sends;
Retrieval system block of information message is to described terminal.
11. methods as claimed in claim 9, is characterized in that, described base station transmission system block of information message, to terminal, comprising:
Described base station periodic broadcast system information block message.
12. methods as claimed in claim 11, is characterized in that, if described base station receives the Repeating initialization request message exceeding preset times in preset period of time, then extend the cycle of broadcast system information block message.
13. methods as claimed in claim 9, is characterized in that, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
14. methods as claimed in claim 13, is characterized in that, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
15. methods as claimed in claim 9, it is characterized in that, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
16. methods as described in any one of claim 9-15, is characterized in that, before base station transmission system block of information message to terminal, also comprise:
Obtain the relaying demand of current remote terminal and/or the priority of relay request;
According to the relaying demand of current remote terminal and/or the priority selection cycle broadcast system information block message of relay request or be only the terminal retrieval system block of information message sending Repeating initialization request message when receiving Repeating initialization request message.
17. 1 kinds of terminals, is characterized in that, comprising:
Acquiring unit, for obtaining the system information block message that base station sends, comprises the parameter information for selecting link terminal in described system information block message;
Judging unit, for judging according to described parameter information whether described terminal meets the condition becoming link terminal;
Report unit, if meet the condition becoming link terminal for described terminal, then reporting terminal capacity information is to described base station so that described base station communicates according to the terminal ability information of each terminal to report in signal cover selected link terminal from each terminal described.
18. terminals as claimed in claim 17, is characterized in that, described acquiring unit specifically for:
Prejudge described terminal according to power capacity and/or Reference Signal Received Power and can become link terminal;
If described terminal can become link terminal, then send the Repeating initialization request message extremely described base station for asking to become link terminal;
Receive the system information block message that described base station returns.
19. terminals as claimed in claim described in 17, is characterized in that, described acquiring unit specifically for:
Monitor the system information block message of described base station periodic broadcast.
20. terminals as claimed in claim described in 17, is characterized in that, described acquiring unit specifically for:
Prejudge described terminal according to power capacity and/or Reference Signal Received Power and can become link terminal;
If described terminal can become link terminal, then monitor the system information block message of described base station broadcast.
21. terminals as claimed in claim 17, is characterized in that, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
22. terminals as claimed in claim 21, is characterized in that, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
23. terminals as claimed in claim 17, it is characterized in that, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
24. terminals as described in any one of claim 18-23, is characterized in that, also comprise:
Determining unit, for before the system information block message of described terminal acquisition base station transmission, monitor the relay request of the remote terminal in described terminal signaling coverage, record the information that described relay request is corresponding, wherein, the information that described relay request is corresponding comprises initiates the remote terminal quantity of relay request and/or the priority of relay request;
The information corresponding according to described relay request and/or described terminal ability information determine whether to perform prejudges according to power capacity and/or Reference Signal Received Power the step that can self become link terminal.
25. 1 kinds of base stations, is characterized in that, comprising:
Transmitting element, for transmitting system block of information message to terminal, comprises the parameter information for selecting link terminal in described system information block message;
Receiving element, after judging according to described parameter information in described terminal self to meet and becoming the condition of link terminal, receives the terminal ability information of described terminal to report;
Selected cell, for communicating according to the terminal ability information of each terminal to report in described base station signal coverage selected link terminal from each terminal described.
26. base stations as claimed in claim 25, is characterized in that, described transmitting element specifically for:
After described terminal to be prejudged according to power capacity and/or Reference Signal Received Power and self can be become link terminal, receive the Repeating initialization request message for asking to become link terminal that described terminal sends;
Retrieval system block of information message is to described terminal.
27. base stations as claimed in claim 25, is characterized in that, described transmitting element specifically for:
Periodic broadcast system information block message.
28. base stations as claimed in claim 27, is characterized in that, described transmitting element also for:
Exceed the Repeating initialization request message of preset times if receive in preset period of time, then extend the cycle of broadcast system information block message.
29. base stations as claimed in claim 25, is characterized in that, described for selecting the parameter information of link terminal, comprise Reference Signal Received Power threshold value and the number of times threshold value of cell change in Preset Time.
30. base stations as claimed in claim 29, is characterized in that, described for selecting the parameter information of link terminal, also comprise at least one in following information:
For characterizing the power threshold of Terminal Service ability, described power threshold comprise correspondence can perform the first threshold value of scheduling of resource, correspondence can serve the remote terminal outside described base station signal coverage the second threshold value and correspondence only can serve described base station signal cover in the 3rd threshold value of terminal;
The quantity threshold value of the remote terminal of service.
31. base stations as claimed in claim 25, it is characterized in that, described terminal ability information comprises at least one of following information:
Terminal power information, the ability information whether possessing scheduling of resource, Reference Signal Received Power information and the maximum quantity information of remote terminal that can serve.
32. base stations as described in any one of claim 25-31, is characterized in that, described transmitting element also for: before transmitting system block of information message to terminal, obtain the relaying demand of current remote terminal and/or the priority of relay request;
According to the relaying demand of current remote terminal and/or the priority selection cycle broadcast system information block message of relay request or be only the terminal retrieval system block of information message sending Repeating initialization request message when receiving Repeating initialization request message.
Priority Applications (2)
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| CN201510502564.XA CN105208621A (en) | 2015-08-14 | 2015-08-14 | Communication method, terminal and base station |
| PCT/CN2015/100267 WO2017028462A1 (en) | 2015-08-14 | 2015-12-31 | Communication method, terminal, and base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510502564.XA CN105208621A (en) | 2015-08-14 | 2015-08-14 | Communication method, terminal and base station |
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| CN105208621A true CN105208621A (en) | 2015-12-30 |
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