CN102123492A - Method, system and equipment for configuring downlink subframes and receiving downlink data - Google Patents
Method, system and equipment for configuring downlink subframes and receiving downlink data Download PDFInfo
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- CN102123492A CN102123492A CN2011100085010A CN201110008501A CN102123492A CN 102123492 A CN102123492 A CN 102123492A CN 2011100085010 A CN2011100085010 A CN 2011100085010A CN 201110008501 A CN201110008501 A CN 201110008501A CN 102123492 A CN102123492 A CN 102123492A
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Abstract
The invention relates to the technical field of wireless communication, in particular relating to a method, system and equipment for configuring downlink subframes and receiving downlink data in order to avoid configuring non-MBSFN (Multicast Broadcast Single Frequency Network) subframes as backhaul downlink subframes and solve the problem in the prior art that the transmission performance of an RN (relay node) cell is affected when the non-MBSFN subframes are configured as the backhaul downlink subframes. The method for configuring the downlink subframes provided by the embodiment of the invention comprises: a base station configures part or all of subframes in a downlink subframe set used for backhaul downlink transmission as the backhaul downlink subframes from a base station side according to the deviants of downlink transmission timing and downlink receiving timing of RN equipment. As the base station configures the backhaul downlink subframes according to the deviants of the downlink transmission timing and downlink receiving timing of the RN equipment, the non-MBSFN subframes are prevented from being configured as the backhaul downlink subframes.
Description
Technical field
The present invention relates to wireless communication technology field, method, system and the equipment of particularly a kind of configurating downlink subframe and downlink data receiving.
Background technology
LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) system has defined with lower node, interface and link after introducing Relay (relaying) node, shown in Figure 1A,
Node comprises:
Donor-eNB: with RN equipment the eNB of wireless connections is arranged, be abbreviated as DeNB;
Relay-Node: be present in the entity between DeNB and the UE, be abbreviated as RN equipment;
Relay-UE: directly and the RN equipment UE that carries out data interaction, be abbreviated as R-UE;
Grand UE: directly and the DeNB UE that carries out data interaction.
Interface comprises:
Un interface: the interface between RN equipment and the DeNB;
Interface between Uu interface: UE and the RN equipment.
Radio Link comprises:
Backhaul link: back haul link, the link between base station and the core net comprises Un interface link corresponding;
Access link: access link, with Uu interface link corresponding;
Direct link: the direct projection link, DeNB and grand UE carry out the link of transfer of data.
Downlink transfer behind the introducing RN equipment: the data that arrive UE under the RN equipment need send to RN equipment through descending back haul link by DeNB, send to UE by RN equipment through descending access link again.
Uplink behind the introducing RN equipment: the uplink of UE sends to RN equipment by UE through up access link earlier under the RN equipment, sends to DeNB by RN equipment through back haul link again.
On back haul link, for the FDD system, RN equipment need be at descending sub frame { 0,4,5, send synchronizing signal etc. to the terminal of self serving in the 9}, these subframes can't be configured to the back haul link descending sub frame, these subframes are called non-MBSFN (non-MBSFN Multicast Broadcast Single Frequency Network, non--Multicast Broadcast Single Frequency Network) subframe; In the TDD system, { 0,1,5,6} is the non-MBSFN subframe to subframe.
The descending transmission of RN equipment regularly subframe determines by self, and when descending transmissions of RN equipment when regularly existence is offset between subframe and descending the receptions timing subframe, the non-MBSFN subframe of RN side may be configured to the back haul link descending sub frame.
Shown in Figure 1B, the descending transmission timing subframe of RN equipment is offset 2 subframes backward with respect to the descending reception timing subframe of RN equipment, in a radio frames, if the subframe { 1,2,6 of DeNB configuration DeNB side, 7} is the back haul link subframe, correspondingly, RN equipment is { 9,0 according to the regularly definite back haul link descending sub frame of descending reception, 4,5}, being about to the non-MBSFN sub-frame configuration is the back haul link descending sub frame, thereby will influence the transmission performance of RN sub-district.
Summary of the invention
The method and apparatus of a kind of configurating downlink subframe that the embodiment of the invention provides is the situation generation of back haul link descending sub frame in order to avoid the non-MBSFN sub-frame configuration.
The method of a kind of downlink data receiving that the embodiment of the invention provides, system and equipment are the back haul link descending sub frame in order to what exist in the solution prior art with the non-MBSFN sub-frame configuration, thereby will influence the problem of the transmission performance of RN sub-district.
The method of a kind of configurating downlink subframe that the embodiment of the invention provides comprises:
The base station determines that according to descending the transmission regularly and the descending deviant regularly that receives of back haul link of access link that relaying RN equipment reports base station side can be used in the descending sub frame set of back haul link downlink transfer;
The part or all of sub-frame configuration that described base station will be used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame;
Described RN equipment is notified with configuration information in described base station.
The method of a kind of downlink data receiving that the embodiment of the invention provides comprises:
RN equipment is determined the descending deviant that sends timing and the descending reception timing of back haul link of access link, and the deviant of determining is sent to the base station;
Described RN equipment is determined the back haul link descending sub frame of base station according to described deviant configuration according to the announcement information of receiving from described base station, and receives data by described back haul link descending sub frame.
The equipment of a kind of configurating downlink subframe that the embodiment of the invention provides comprises:
Determination module is used for that the access link that reports according to RN equipment is descending to be sent regularly and the descending deviant regularly that receives of back haul link, determines that the descending sub frame that base station side can be used in the back haul link downlink transfer gathers;
Configuration module, the part or all of sub-frame configuration that is used for being used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame;
Notification module is used for notifying described RN equipment with configuration information.
The equipment of a kind of downlink data receiving that the embodiment of the invention provides comprises:
Reporting module is used for determining the descending deviant that sends timing and the descending reception timing of back haul link of access link, and the deviant of determining is sent to the base station;
Receiver module is used for according to the announcement information of receiving from described base station, determines the back haul link descending sub frame of base station according to described deviant configuration, and receives data by described back haul link descending sub frame.
The system of a kind of downlink data receiving that the embodiment of the invention provides comprises:
The base station, be used for that the access link that reports according to RN equipment is descending to be sent regularly and the descending deviant that receives timing of back haul link, determine that base station side can be used in the descending sub frame set of back haul link downlink transfer, the part or all of sub-frame configuration that will be used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame, notifies described RN equipment with configuration information;
RN equipment, be used for determining descending timing and the descending deviant regularly that receives of back haul link of sending of access link, and the deviant of determining sent to the base station, according to the announcement information of receiving from described base station, determine the back haul link descending sub frame of base station, and receive data by described back haul link descending sub frame according to described deviant configuration.
Because embodiment of the invention base station sends regularly according to RN equipment descending and the descending deviant configuration back haul link descending sub frame that receives regularly of RN equipment, thereby to have avoided the non-MBSFN sub-frame configuration be the situation generation of back haul link descending sub frame.
Because RN equipment is by the back haul link descending sub frame reception data of base station according to the deviant configuration, avoiding the non-MBSFN sub-frame configuration is the back haul link descending sub frame, thereby avoids the influence to the transmission performance of RN sub-district; Further improved the reliability of the transmission performance of RN sub-district.
Description of drawings
Figure 1A is the structural representation of LTE-A system in the background technology;
Figure 1B be DeNB and RN equipment in the background technology downlink frame regularly and back haul link descending sub frame configuration schematic diagram;
Fig. 2 is the system configuration schematic diagram of embodiment of the invention downlink data receiving;
Fig. 3 is the structural representation of embodiment of the invention base station;
Fig. 4 is the structural representation of embodiment of the invention RN equipment;
Fig. 5 is the method flow schematic diagram of embodiment of the invention configurating downlink subframe;
Fig. 6 is the method flow schematic diagram of embodiment of the invention downlink data receiving;
Fig. 7 for embodiment of the invention skew be 1 o'clock DeNB and RN equipment downlink frame regularly and back haul link descending sub frame configuration schematic diagram;
Fig. 8 for embodiment of the invention skew be 3 o'clock DeNB and RN equipment downlink frame regularly and back haul link descending sub frame configuration schematic diagram;
Fig. 9 for embodiment of the invention skew be 5 o'clock DeNB and RN equipment downlink frame regularly and back haul link descending sub frame configuration schematic diagram.
Embodiment
Embodiment of the invention base station is according to the descending descending deviant regularly that receives that sends timing and RN equipment of RN equipment, from base station side can be used in the descending sub frame set of back haul link downlink transfer configuration section or all subframe and notify RN equipment as the back haul link descending sub frame with configuration information.Because embodiment of the invention base station sends regularly according to RN equipment descending and the descending deviant configuration back haul link descending sub frame that receives regularly of RN equipment, thereby to have avoided the non-MBSFN sub-frame configuration be the situation generation of back haul link descending sub frame.
Embodiment of the invention RN equipment sends to the base station with the descending deviant that sends timing and the descending reception timing of back haul link of access link, receives data by the base station according to the back haul link descending sub frame that deviant disposes.Because RN equipment is by the back haul link descending sub frame reception data of base station according to the deviant configuration, avoiding the non-MBSFN sub-frame configuration is the back haul link descending sub frame, thereby avoids the influence to the transmission performance of RN sub-district.
Wherein, the descending transmission of access link regularly is RN equipment sends timing from The data to the UE that self serves; It regularly is the timing that RN equipment receives the base station down The data that back haul link receives.Specifically can be referring to agreement 3GPP TS36.213 and 3GPP TS 36.216.
In the declarative procedure below, implement to describe from the cooperation of base station side and RN equipment side earlier, describe from the enforcement of base station side and RN equipment side respectively at last, but this does not also mean that the two must cooperate enforcement, in fact, when base station side and RN equipment side separate when implementing, also solved respectively in base station side, the existing problem of RN equipment side, when just the two is used in combination, can obtain better technique effect.
As shown in Figure 2, the system of embodiment of the invention downlink data receiving comprises the following steps: base station 10 and RN equipment 20.
Wherein, the descending sub frame set that base station side can be used in the back haul link downlink transfer is meant base station 10 frames radio frames regularly, such as the DeNB frame among Fig. 7～Fig. 9 regularly;
Relative, the descending sub frame set that the RN equipment side can be used in the back haul link downlink transfer is meant the descending radio frames regularly that sends of RN equipment 20 access link, such as the descending transmission of the RN equipment access link among Fig. 7～Fig. 9 regularly.
Because descending reception timing of the back haul link of RN equipment 20 and base station 10 frames timings identical (having only propagation delay time), and descending transmission timing of access link and the descending reception of back haul link regularly have skew, so regularly descending transmission also has identical skew to base station 10 frames surely with RN equipment 20 access link.
Deviant is known in base station 10, when configuration back haul link descending sub frame, just can avoid the non-MBSFN subframe of RN equipment is mixed with the back haul link descending sub frame.
Concrete, base station 10 determines that the RN equipment side can be used in the subframe set of back haul link downlink transfer, can be used in subframe numbering and deviant in the subframe set of back haul link downlink transfer according to the RN equipment side, determine that base station side is used for the descending sub frame set of back haul link downlink transfer.
Known that the RN equipment side can be used in the subframe set of back haul link downlink transfer, known deviant again, just can determine that base station side is used for the descending sub frame set of back haul link downlink transfer.
In force because that deviant comprises is positive and negative, so need regulation how to be offset into as what skew for negative.Dual mode is arranged here:
Mode one, compare with identical numbering radio frames, if the descending reception of back haul link regularly behind the descending transmission fixed response time of access link, then deviant is for just; If the descending transmission of access link regularly behind the descending reception fixed response time of back haul link, then deviant is for negative.
With Fig. 7 is example, in the identical numbering radio frames, the descending reception of back haul link subframe 0 regularly differs a subframe with the descending subframe 0 regularly that sends of access link, and the descending reception timing of back haul link behind the descending transmission fixed response time of access link, so the deviants that RN equipment 20 is determined are 1.
Accordingly, base station 10 the RN equipment side be can be used in the subframe set of back haul link downlink transfer each subframe numbering respectively with the deviant addition, thereby obtain the descending sub frame set that base station side is used for the back haul link downlink transfer.
With Fig. 7 is example, the subframe set that the RN equipment side can be used in the back haul link downlink transfer be 1,2,3,6,7,8}, deviant is 1, then base station side be used for the descending sub frame set of back haul link downlink transfer be 2,3,4,7,8,9}.
Each subframe numbering obtains the scheme that base station side is used for the descending sub frame set of back haul link downlink transfer with the deviant addition respectively in the subframe set of back haul link downlink transfer except base station 10 can be used in the RN equipment side in the mode one, can also be identified for the descending sub frame set of back haul link downlink transfer by following mode.
With the FDD system is example, the set that the RN equipment side can be configured to the back haul link subframe be always 1,2,3,6,7,8}, and in the DeNB side, according to the difference of deviant, the subframe set that can be configured to the back haul link descending sub frame is also inequality.Suppose that deviant is X, the radio frames of DeNB side is m, subframe is numbered n, the corresponding subframe of the subframe of condition numbering can be configured to the back haul link descending sub frame below then needing to satisfy, and that is to say that the subframe numbering of all subframe correspondences that base station side is used for the descending sub frame set of back haul link downlink transfer all needs to satisfy following conditions:
(10×m+n-Xmod10)mod10∈{1，2，3，6，7，8}。
Mode two, compare with identical numbering radio frames, if the descending reception of back haul link regularly behind the descending transmission fixed response time of access link, then deviant is for negative; If the descending transmission of access link regularly behind the descending reception fixed response time of back haul link, then deviant is for just.
With Fig. 7 is example, in the identical numbering radio frames, the descending reception of back haul link subframe 0 regularly differs a subframe with the descending subframe 0 regularly that sends of access link, and the descending reception timing of back haul link behind the descending transmission fixed response time of access link, so the deviants that RN equipment 20 is determined are-1.
Accordingly, base station 10 can be used in the RN equipment side in the subframe set of back haul link downlink transfer each subframe numbering subtracts each other with deviant respectively, thereby obtains the descending sub frame set that base station side is used for the back haul link downlink transfer.
With Fig. 7 is example, the subframe set that the RN equipment side can be used in the back haul link downlink transfer be 1,2,3,6,7,8}, deviant is-1, then base station side be used for the descending sub frame set of back haul link downlink transfer be 2,3,4,7,8,9}.
The method that mode two also can adopt similar fashion one to satisfy condition determines that base station side is used for the descending sub frame set of back haul link downlink transfer.Because mode one and mode two is positive and negative opposite, so mode two need satisfy following condition:
(10×m+n+Xmod10)mod10∈{1，2，3，6，7，8}。
Concrete employing aforesaid way one still is that mode two can be stipulated in agreement in advance; Perhaps high-rise informing base station 10 and RN equipment 20; Perhaps consult to determine by base station 10 and RN equipment 20.
The selection here can be configured as required, sends lot of data such as needs to RN equipment 20, and the back haul link descending sub frame quantity that can dispose is more, otherwise can lack.Certainly, except the data volume that consider to send, can also be compound from system, the terminal quantity equal angles separately or take all factors into consideration.
Mode one, configuration information are bitmap (bit map).
Accordingly, RN equipment 20 is determined the subframe as the back haul link descending sub frame according to the numerical value of each bit among the bitmap and the subframe of bit correspondence.
The bit number of bitmap can equal the quantity of subframe in one or more radio frames.The corresponding subframe of each bit.
The bit number of supposing bitmap is 10,0th, does not dispose the back haul link descending sub frame, the 1st, and configuration back haul link descending sub frame.
With Fig. 7 is example, if the bitmap that base station 10 is determined regularly is reference with the DeNB frame, then the bitmap of Que Dinging is 0011100111;
Accordingly, after RN equipment 20 is received bitmap, two kinds of processing modes are arranged.
Because the bitmap that receives is regularly to be reference with the DeNB frame, so RN equipment 20 also needs according to deviant, converting to the bitmap that receives with descending the transmissions timing of access link is reference.
With the DeNB frame regularly is that the bitmap of reference is 0011100111, and deviant is 1 (suppose positive and negative in the manner described above one), so also delay one with 0011100111, obtains 0111001110.
With Fig. 7 is example, if the bitmap that base station 10 is determined is reference regularly with the descending transmission of access link, then base station 10 has two kinds of processing modes equally.
Accordingly, RN equipment 10 can directly be determined the subframe (being above-mentioned RN equipment 20 processing modes 1) of each bit correspondence according to present time slot relation; Also can determine the subframe (being above-mentioned RN equipment 20 processing modes 2) of each bit correspondence according to deviant according to the order of a radio frames.
Accordingly, RN equipment 20 can be determined the subframe of each bit correspondence among the bitmap according to the order of a radio frames, i.e. corresponding first bit of subframe 0, and subframe 1 corresponding second bit, and the like.And then just can accurately know the back haul link descending sub frame according to the numerical value of each bit.
Need to prove that embodiment of the invention configuration information is that the mode of bitmap is not limited to above-mentioned example, other can all be suitable for the embodiment of the invention with the mode that the back haul link descending sub frame that disposes is notified to RN equipment 20 by bitmap.
Mode two, configuration information are the subframe numberings.
Accordingly, RN equipment 20 is determined the subframe as the back haul link descending sub frame according to the subframe numbering.
With Fig. 7 is example, if base station 10 regularly is reference with the DeNB frame, definite subframe numbering be 2,3,4,7,8,9};
Accordingly, after RN equipment 20 was received the subframe numbering, converting to the subframe numbering of receiving with descending transmission of access link regularly was the subframe numbering of reference.
With the DeNB frame regularly be reference subframe numbering be 2,3,4,7,8,9}, deviant is 1 (suppose positive and negative in the manner described above one), thus with access link descending send regularly be the subframe of reference number and be 1,2,3,6,7,8}.
With Fig. 7 is example, if base station 10 is reference regularly with the descending transmission of access link, base station 10 determine earlier with the DeNB frame regularly be the subframe numbering of reference be 2,3,4,7,8,9}; And then, will regularly be that { 2,3,4,7,8, it regularly is that { 1,2,3,6,7,8} will { 1,2,3,6,7,8} sends to RN equipment 20 for the subframe numbering of reference that 9} converts to descending transmission of access link for the subframe numbering of reference with the DeNB frame according to deviant;
Accordingly, after RN equipment 20 is received the subframe numbering, directly with { 1,2,3,6,7, the subframe of 8} correspondence is as the back haul link descending sub frame.
Need to prove that embodiment of the invention configuration information develops simultaneously and is confined to the mode of bitmap and subframe numbering, other information that the back haul link descending sub frame of configuration can be notified to RN equipment 20 can be as the configuration information of the embodiment of the invention.
Wherein, base station 10 can place configuration information in RRC (Radio Resource Control, the Radio Resource control) signaling and send to RN equipment 20.Certainly, except the RRC signaling method, other modes that configuration information can be sent to RN equipment 20 all are suitable for the embodiment of the invention, such as broadcasting etc.
Based on same inventive concept, the method of a kind of base station, RN equipment, configurating downlink subframe and the method for downlink data receiving also are provided in the embodiment of the invention, because the principle that these equipment and method are dealt with problems and the system similarity of downlink data receiving, therefore the enforcement of these equipment and method can repeat part and repeat no more referring to the enforcement of system.
As shown in Figure 3, the base station of the embodiment of the invention comprises: determination module 100, configuration module 110 and notification module 120.
Notification module 120 is used for notifying RN equipment with configuration information.
Preferable, determination module 100 determines that the RN equipment side can be used in the subframe set of back haul link downlink transfer, can be used in subframe numbering and deviant in the subframe set of back haul link downlink transfer according to the RN equipment side, determine that base station side is used for the descending sub frame set of back haul link downlink transfer.
Preferable, notification module 120 is provided with the numerical value of back haul link descending sub frame corresponding bit in bit map bitmap, with the bitmap after being provided with as configuration information; Or with the subframe of back haul link descending sub frame numbering as configuration information.
Preferable, notification module 120 sends the RRC signaling that comprises configuration information to RN equipment.
As shown in Figure 4, the RN equipment of the embodiment of the invention comprises: reporting module 200 and receiver module 210.
If configuration information is bitmap, receiver module 210 is determined the subframe as the back haul link descending sub frame according to the numerical value of each bit among the bitmap and the subframe of bit correspondence.
If configuration information is the subframe numbering, receiver module 210 is determined the subframe as the back haul link descending sub frame according to the subframe numbering.
As shown in Figure 5, the method for embodiment of the invention configurating downlink subframe comprises the following steps:
The part or all of sub-frame configuration that step 502, base station will be used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame.
Equipment is notified RN with configuration information in step 503, base station.
Wherein, the descending sub frame set that base station side can be used in the back haul link downlink transfer is meant base station frame radio frames regularly, such as the DeNB frame among Fig. 7～Fig. 9 regularly;
Relative, the descending sub frame set that the RN equipment side can be used in the back haul link downlink transfer is meant the descending radio frames regularly that sends of RN equipment access link, such as the descending transmission of the RN equipment access link among Fig. 7～Fig. 9 regularly.
Because descending reception timing of the back haul link of RN equipment and base station frame timing identical (having only propagation delay time), and descending transmission timing of access link and the descending reception of back haul link regularly have skew, so regularly descending transmission also has identical skew to the base station frame surely with RN equipment access link.
Deviant is known in the base station, when configuration back haul link descending sub frame, just can avoid the non-MBSFN subframe of RN equipment is mixed with the back haul link descending sub frame.
Concrete, in the step 501, the base station determines that the RN equipment side can be used in the subframe set of back haul link downlink transfer, can be used in subframe numbering and deviant in the subframe set of back haul link downlink transfer according to the RN equipment side, determine that base station side is used for the descending sub frame set of back haul link downlink transfer.
The base station can know that the RN equipment side can be used in the subframe set of back haul link downlink transfer, is example with the FDD system, the subframe set that the RN equipment side can be used in the back haul link downlink transfer be 1,2,3,6,7,8}, this is pre-configured in the base station.
Known that the RN equipment side can be used in the subframe set of back haul link downlink transfer, known deviant again, just can determine that base station side is used for the descending sub frame set of back haul link downlink transfer.
In force because that deviant comprises is positive and negative, so need regulation how to be offset into as what skew for negative.Dual mode is arranged here:
Mode one, compare with identical numbering radio frames, if the descending reception of back haul link regularly behind the descending transmission fixed response time of access link, then deviant is for just; If the descending transmission of access link regularly behind the descending reception fixed response time of back haul link, then deviant is for negative.
Accordingly, in the step 501, the base station RN equipment side be can be used in the subframe set of back haul link downlink transfer each subframe numbering respectively with the deviant addition, thereby obtain the descending sub frame set that base station side is used for the back haul link downlink transfer.
Mode one can also adopt the method that satisfies condition to determine that base station side is used for the descending sub frame set of back haul link downlink transfer, and particular content can not repeat them here referring to the corresponding contents among Fig. 2.
Mode two, compare with identical numbering radio frames, if the descending reception of back haul link regularly behind the descending transmission fixed response time of access link, then deviant is for negative; If the descending transmission of access link regularly behind the descending reception fixed response time of back haul link, then deviant is for just.
Accordingly, in the step 501, the base station can be used in the RN equipment side in the subframe set of back haul link downlink transfer each subframe numbering subtracts each other with deviant respectively, thereby obtains the descending sub frame set that base station side is used for the back haul link downlink transfer.
Mode two can also adopt the method that satisfies condition to determine that base station side is used for the descending sub frame set of back haul link downlink transfer, and particular content can not repeat them here referring to the corresponding contents among Fig. 2.
Concrete employing aforesaid way one still is that mode two can be stipulated in agreement in advance; Perhaps high-rise informing base station and RN equipment; Perhaps consult to determine by base station and RN equipment.
The base station is determining that base station side can be used in the descending sub frame set of back haul link downlink transfer, just need can be used in the descending sub frame set of back haul link downlink transfer the part or all of subframe of selection as the back haul link descending sub frame from base station side.
In the step 503, can be configured as required, send lot of data such as needs to RN equipment 20, the back haul link descending sub frame quantity that can dispose is more, otherwise can lack.Certainly, except the data volume that consider to send, can also be compound from system, the terminal quantity equal angles separately or take all factors into consideration.
The base station just needs to have determined configuration information after having determined the back haul link descending sub frame.The type of configuration information has multiple mode, enumerates several below:
Mode one, configuration information are bitmap.
The base station is provided with the numerical value of back haul link descending sub frame corresponding bit in bitmap, with the bitmap after being provided with as configuration information.
Here configuration information is that configuration information is that the particular content of bitmap is identical among particular content and Fig. 2 of bitmap, does not repeat them here.
Mode two, configuration information are the subframe numberings.
The base station numbers the subframe of back haul link descending sub frame as configuration information.
Here configuration information is that configuration information is that the subframe particular content of numbering is identical among particular content and Fig. 2 of subframe numbering, does not repeat them here.
Need to prove that embodiment of the invention configuration information develops simultaneously and is confined to the mode of bitmap and subframe numbering, other information that the back haul link descending sub frame of configuration can be notified to RN equipment can be as the configuration information of the embodiment of the invention.
In the step 503, the base station can place configuration information the RRC signaling to send to RN equipment.Certainly, except the RRC signaling method, other modes that configuration information can be sent to RN equipment all are suitable for the embodiment of the invention, such as broadcasting etc.
As shown in Figure 6, the method for embodiment of the invention downlink data receiving comprises the following steps:
In force because that deviant comprises is positive and negative, so need regulation how to be offset into as what skew for negative, in the step 601, RN equipment is determined the symbol that deviant comprises according to the rules then.Dual mode is arranged here:
Mode one, compare with identical numbering radio frames, if the descending reception of back haul link regularly behind the descending transmission fixed response time of access link, then deviant is for just; If the descending transmission of access link regularly behind the descending reception fixed response time of back haul link, then deviant is for negative.
With Fig. 7 is example, in the identical numbering radio frames, the descending reception of back haul link subframe 0 regularly differs a subframe with the descending subframe 0 regularly that sends of access link, and the descending reception timing of back haul link behind the descending transmission fixed response time of access link, so the deviants that RN equipment 20 is determined are 1.
Mode two, compare with identical numbering radio frames, if the descending reception of back haul link regularly behind the descending transmission fixed response time of access link, then deviant is for negative; If the descending transmission of access link regularly behind the descending reception fixed response time of back haul link, then deviant is for just.
With Fig. 7 is example, in the identical numbering radio frames, the descending reception of back haul link subframe 0 regularly differs a subframe with the descending subframe 0 regularly that sends of access link, and the descending reception timing of back haul link behind the descending transmission fixed response time of access link, so the deviants that RN equipment 20 is determined are-1.
Concrete employing aforesaid way one still is that mode two can be stipulated in agreement in advance; Perhaps high-rise informing base station and RN equipment; Perhaps consult to determine by base station and RN equipment.
In the step 602, the type of the configuration information that RN equipment is received has multiple mode, enumerates several below:
Mode one, configuration information are bitmap.
In the step 602, RN equipment is determined the subframe as the back haul link descending sub frame according to the numerical value of each bit among the bitmap and the subframe of bit correspondence.
Here configuration information is that configuration information is that the particular content of bitmap is identical among particular content and Fig. 2 of bitmap, does not repeat them here.
Mode two, configuration information are the subframe numberings.
In the step 602, after RN equipment was received the subframe numbering, converting to the subframe numbering of receiving with descending reception of back haul link regularly was the subframe numbering of reference.
Here configuration information is that configuration information is that the subframe particular content of numbering is identical among particular content and Fig. 2 of subframe numbering, does not repeat them here.
Need to prove that embodiment of the invention configuration information develops simultaneously and is confined to the mode of bitmap and subframe numbering, other information that the back haul link descending sub frame of configuration can be notified to RN equipment can be as the configuration information of the embodiment of the invention.
Wherein, Fig. 5 and Fig. 6 can synthesize a flow process, form the method for a new downlink data receiving, promptly first execution in step 601, execution in step 501 and step 502, execution in step 602 at last again.
With the FDD system, configuration information is that bitmap is that example describes below.
In a radio frames, the subframe set that the RN equipment side can be used in the back haul link downlink transfer is always { 1,2,3,6,7,8}, DeNB need determine that the DeNB side can be used in the subframe set of back haul link downlink transfer according to the deviant that RN equipment reports, and this set is relevant with deviant, and the subframe that comprises in the different sets according to deviant is also inequality.
It is 1,3 that Fig. 7～Fig. 9 has provided deviant, but the set of 5 o'clock gamete frame.As shown in Figure 7: when deviant was 1, { 1,2,3,6,7, the corresponding subframe set of 8} was for { 2,3 with the set of RN side subframe, 4,7,8,9}, as shown in Figure 8: when deviant is 3, with RN side subframe set { 1,2,3,6,7, the set of the corresponding subframe of 8} for 4,5,6,9,0,1}; As shown in Figure 9; When deviant is 5, with RN side subframe set 1,2,3,6,7, and the corresponding subframe set of 8} for 6,7,8,1,2,3}.
DeNB is the back haul link subframe with the whole sub-frame configuration in the subframe set, the back haul link subframe position is mapped to bitmap is included in the RRC signaling, or directly subframe index is included in the RN equipment that is notified in the RRC signaling.After RN equipment receives bitmap or subframe index, can begin (RN equipment side subframe 9 Fig. 7 from subframe position with DeNB subframe 0 correspondence; RN equipment side subframe 7 among Fig. 8; RN equipment side subframe 5 among Fig. 9), determines the position of respective backhaul link subframe, or directly determine the position of respective backhaul link subframe according to subframe index according to bitmap.
Fig. 7～Fig. 9 is to be the back haul link subframe with whole sub-frame configuration, the part subframe is configured to the back haul link subframe and Fig. 7～Fig. 9 similar, do not repeat them here.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Because embodiment of the invention base station sends regularly according to RN equipment descending and the descending deviant configuration back haul link descending sub frame that receives regularly of RN equipment, thereby to have avoided the non-MBSFN sub-frame configuration be the situation generation of back haul link descending sub frame.
Because RN equipment is by the back haul link descending sub frame reception data of base station according to the deviant configuration, avoiding the non-MBSFN sub-frame configuration is the back haul link descending sub frame, thereby avoids the influence to the transmission performance of RN sub-district; Further improved the reliability of the transmission performance of RN sub-district.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (18)
1. the method for a configurating downlink subframe is characterized in that, this method comprises:
The base station determines that according to descending the transmission regularly and the descending deviant regularly that receives of back haul link of access link that relaying RN equipment reports base station side can be used in the descending sub frame set of back haul link downlink transfer;
The part or all of sub-frame configuration that described base station will be used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame;
Described RN equipment is notified with configuration information in described base station.
2. the method for claim 1 is characterized in that, described base station determines that the descending sub frame set that base station side can be used in the back haul link downlink transfer comprises:
Described base station determines that the RN equipment side can be used in the subframe set of back haul link downlink transfer;
Described base station can be used in subframe numbering and the described deviant in the subframe set of back haul link downlink transfer according to the RN equipment side, determine that the descending sub frame that base station side is used for the back haul link downlink transfer gathers.
3. the method for claim 1 is characterized in that, the part or all of sub-frame configuration that described base station will be used for the descending sub frame set of back haul link downlink transfer is after the back haul link descending sub frame, also comprises before the notice configuration information:
Described base station is provided with the numerical value of back haul link descending sub frame corresponding bit in bit map bitmap, with the bitmap after being provided with as configuration information; Or
Described base station numbers the subframe of back haul link descending sub frame as configuration information.
4. as the arbitrary described method of claim 1～3, it is characterized in that described base station notice configuration information comprises:
Described base station sends the radio resource control RRC signaling that comprises configuration information to described RN equipment.
5. the method for a downlink data receiving is characterized in that, this method comprises:
RN equipment is determined the descending deviant that sends timing and the descending reception timing of back haul link of access link, and the deviant of determining is sent to the base station;
Described RN equipment is determined the back haul link descending sub frame of base station according to described deviant configuration according to the announcement information of receiving from described base station, and receives data by described back haul link descending sub frame.
6. method as claimed in claim 5 is characterized in that described configuration information is bitmap;
Described RN equipment determines that the back haul link descending sub frame comprises:
Described RN equipment is determined the subframe as the back haul link descending sub frame according to the numerical value of each bit among the bitmap and the subframe of bit correspondence.
7. method as claimed in claim 5 is characterized in that, described configuration information is the subframe numbering;
Described RN equipment determines that the back haul link descending sub frame comprises:
Described RN equipment is numbered according to subframe, determines the subframe as the back haul link descending sub frame.
8. the equipment of a configurating downlink subframe is characterized in that, this equipment comprises:
Determination module is used for that the access link that reports according to RN equipment is descending to be sent regularly and the descending deviant regularly that receives of back haul link, determines that the descending sub frame that base station side can be used in the back haul link downlink transfer gathers;
Configuration module, the part or all of sub-frame configuration that is used for being used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame;
Notification module is used for notifying described RN equipment with configuration information.
9. equipment as claimed in claim 8 is characterized in that, described determination module specifically is used for:
Determine that the RN equipment side can be used in the subframe set of back haul link downlink transfer, can be used in subframe numbering and described deviant in the subframe set of back haul link downlink transfer according to the RN equipment side, determine that the descending sub frame that base station side is used for the back haul link downlink transfer gathers.
10. equipment as claimed in claim 8 is characterized in that, described notification module also is used for:
The numerical value of back haul link descending sub frame corresponding bit in bit map bitmap is set, with the bitmap after being provided with as configuration information; Or
The subframe of back haul link descending sub frame is numbered as configuration information.
11., it is characterized in that described notification module specifically is used for as the arbitrary described equipment of claim 8～10:
Send the RRC signaling that comprises configuration information to described RN equipment.
12. the equipment of a downlink data receiving is characterized in that, this equipment comprises:
Reporting module is used for determining the descending deviant that sends timing and the descending reception timing of back haul link of access link, and the deviant of determining is sent to the base station;
Receiver module is used for according to the announcement information of receiving from described base station, determines the back haul link descending sub frame of base station according to described deviant configuration, and receives data by described back haul link descending sub frame.
13. equipment as claimed in claim 12 is characterized in that, described configuration information is bitmap;
Described receiver module specifically is used for:
According to the numerical value of each bit among the bitmap and the subframe of bit correspondence, determine subframe as the back haul link descending sub frame.
14. equipment as claimed in claim 12 is characterized in that, described configuration information is the subframe numbering;
Described receiver module specifically is used for:
According to the subframe numbering, determine subframe as the back haul link descending sub frame.
15. the system of a downlink data receiving is characterized in that, this system comprises:
The base station, be used for that the access link that reports according to RN equipment is descending to be sent regularly and the descending deviant that receives timing of back haul link, determine that base station side can be used in the descending sub frame set of back haul link downlink transfer, the part or all of sub-frame configuration that will be used for the descending sub frame set of back haul link downlink transfer is the back haul link descending sub frame, notifies described RN equipment with configuration information;
RN equipment, be used for determining descending timing and the descending deviant regularly that receives of back haul link of sending of access link, and the deviant of determining sent to the base station, according to the announcement information of receiving from described base station, determine the back haul link descending sub frame of base station, and receive data by described back haul link descending sub frame according to described deviant configuration.
16. system as claimed in claim 15 is characterized in that, described base station specifically is used for:
Determine that the RN equipment side can be used in the subframe set of back haul link downlink transfer, can be used in subframe numbering and described deviant in the subframe set of back haul link downlink transfer according to the RN equipment side, determine that the descending sub frame that base station side is used for the back haul link downlink transfer gathers.
17. system as claimed in claim 15 is characterized in that, described base station also is used for:
The numerical value of back haul link descending sub frame corresponding bit in bit map bitmap is set, with the bitmap after being provided with as configuration information;
Described RN equipment also is used for:
According to the numerical value of each bit among the bitmap and the subframe of bit correspondence, determine subframe as the back haul link descending sub frame.
18. system as claimed in claim 15 is characterized in that, described base station also is used for:
The subframe of back haul link descending sub frame is numbered as configuration information;
Described RN equipment also is used for:
According to the subframe numbering, determine subframe as the back haul link descending sub frame.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206338A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Relay configuration method and device |
| CN104918227A (en) * | 2014-03-10 | 2015-09-16 | 华为技术有限公司 | Communication equipment and back transmission method for base station in long-term evolution system |
| CN106304352A (en) * | 2015-05-29 | 2017-01-04 | 中兴通讯股份有限公司 | The collocation method of many wireless link sharings resource, method for transmitting signals and node |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010016693A2 (en) * | 2008-08-06 | 2010-02-11 | Lg Electronics Inc. | Method and apparatus of communication using subframe between base station and relay |
| WO2010033065A1 (en) * | 2008-09-19 | 2010-03-25 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement in a telecommunication system |
| CN101867944A (en) * | 2009-04-17 | 2010-10-20 | 大唐移动通信设备有限公司 | Method and system for scheduling resources, evolved node B (eNB) and relay node (RN) |
| WO2010121539A1 (en) * | 2009-04-24 | 2010-10-28 | 大唐移动通信设备有限公司 | Method, device and system for backhaul link communication in tdd system |
| WO2010145495A1 (en) * | 2009-06-19 | 2010-12-23 | 大唐移动通信设备有限公司 | Method, system and device for resources scheduling of a relay link |
| CN102148638A (en) * | 2010-02-10 | 2011-08-10 | 电信科学技术研究院 | Method, device and system for configuring multicast broadcast single frequency network (MBSFN) sub-frames |
| CN102196581A (en) * | 2010-03-19 | 2011-09-21 | 中兴通讯股份有限公司 | Method and system for configuring downlink subframes in return link |
-
2011
- 2011-01-14 CN CN201110008501.0A patent/CN102123492B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010016693A2 (en) * | 2008-08-06 | 2010-02-11 | Lg Electronics Inc. | Method and apparatus of communication using subframe between base station and relay |
| WO2010033065A1 (en) * | 2008-09-19 | 2010-03-25 | Telefonaktiebolaget L M Ericsson (Publ) | Method and arrangement in a telecommunication system |
| CN101867944A (en) * | 2009-04-17 | 2010-10-20 | 大唐移动通信设备有限公司 | Method and system for scheduling resources, evolved node B (eNB) and relay node (RN) |
| WO2010121539A1 (en) * | 2009-04-24 | 2010-10-28 | 大唐移动通信设备有限公司 | Method, device and system for backhaul link communication in tdd system |
| WO2010145495A1 (en) * | 2009-06-19 | 2010-12-23 | 大唐移动通信设备有限公司 | Method, system and device for resources scheduling of a relay link |
| CN101932110A (en) * | 2009-06-19 | 2010-12-29 | 大唐移动通信设备有限公司 | Relay link resource scheduling method, system and device |
| CN102148638A (en) * | 2010-02-10 | 2011-08-10 | 电信科学技术研究院 | Method, device and system for configuring multicast broadcast single frequency network (MBSFN) sub-frames |
| CN102196581A (en) * | 2010-03-19 | 2011-09-21 | 中兴通讯股份有限公司 | Method and system for configuring downlink subframes in return link |
Non-Patent Citations (1)
| Title |
|---|
| LG ELECTRONICS INC.: "R1-091195 Backhaul subframe allocation for HARQ operation", 《R1-091195》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014206338A1 (en) * | 2013-06-27 | 2014-12-31 | 华为技术有限公司 | Relay configuration method and device |
| JP2016528771A (en) * | 2013-06-27 | 2016-09-15 | 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． | Repeater configuration method and device |
| CN104918227A (en) * | 2014-03-10 | 2015-09-16 | 华为技术有限公司 | Communication equipment and back transmission method for base station in long-term evolution system |
| WO2015135335A1 (en) * | 2014-03-10 | 2015-09-17 | 华为技术有限公司 | Communication device and base station backhaul method in long term evolution system |
| CN104918227B (en) * | 2014-03-10 | 2019-02-01 | 华为技术有限公司 | The method that base station returns in communication equipment and long evolving system |
| CN106304352A (en) * | 2015-05-29 | 2017-01-04 | 中兴通讯股份有限公司 | The collocation method of many wireless link sharings resource, method for transmitting signals and node |
| CN106304352B (en) * | 2015-05-29 | 2019-01-22 | 中兴通讯股份有限公司 | Configuration method, method for transmitting signals and the node of more wireless link sharing resources |
| US10708937B2 (en) | 2015-05-29 | 2020-07-07 | Xi'an Zhongxing New Software Co., Ltd. | Configuration method for resource sharing among multiple wireless links, signal transmission method and node |
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|---|---|
| CN102123492B (en) | 2014-01-15 |
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