CN103178944A - Transmission method and device of physical hybrid automatic repeat request indicator channel information - Google Patents
Transmission method and device of physical hybrid automatic repeat request indicator channel information Download PDFInfo
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Abstract
The invention discloses a transmission method of PHICH (Physical Hybrid Automatic Repeat Request Indicator Channel) information and a base station. The transmission method of the physical hybrid automatic repeat request indicator channel information mainly includes that the base station confirms feedback correspondence of a downlink subframe which transmits the PHICH (Physical Hybrid Automatic Repeat Request Indicator Channel) information of uplink data according to an ABS (Almost Blank Subframe) pattern of the base station; and if the base station receives uplink data which come from UE (User Equipment), then the base station performs feedback correspondence on the PHICH information of the uplink data on the certain downlink subframe. According to the transmission method and the device of the physical hybrid automatic repeat request indicator channel information, the base station and the UE can solve the problem of confirming a position of a downlink subframe which feeds back or receives the PHICH information under a condition of crossing subframe scheduling.
Description
Technical field
The present invention relates to mobile communication technology, particularly transmission method and the device of physical hybrid automatic repeat request indicator channel (Physical Hybrid ARQ Indicator Channel, PHICH) information in heterogeneous network.
Background technology
Cellular mobile telephone brings great convenience to people's communication, and second generation global system for mobile communications (Global System for Mobile Communication, GSM) adopts digital communication, has further improved the speech quality of mobile communication.third generation partner program (3rd Generation Partnership Project, 3GPP) as the vital tissue of moving communicating field, promoted greatly 3G (Third Generation) Moblie technology (The Third Generation, Standardization 3G), a series of Wideband Code Division Multiple Access (WCDMA) access (Wide Code Division Multiple Access that comprise have been formulated, WCDMA), high speed downlink packet access (High Speed Downlink Packet Access, HSDPA), high speed uplink packet access (High Speed Uplink Packet Access, HSUPA) etc. in interior communication system standard.
In order to tackle the challenge of broadband access technology, and satisfy the demand of growing new business, 3GPP will have started 3G Long Term Evolution (Long Term Evolution in the end of the year 2004, LTE) standardization effort of technology, wish further to improve spectrum efficiency, improve the performance of Cell Edge User, reduce system delay, the access service of higher rate etc. is provided for the high-speed mobile user.Following improved LTE (LTE-A) technology on the basis of LTE, is promoted heterogeneous network especially, and several times increase spectral bandwidth, significantly improve data rate, and the service of higher rate, better performance is provided for more mobile subscribers.
In heterogeneous network, arranged the low power base station node of multiple newtype in the coverage of macrocell, such as picocell (Pico cell) base station, Home eNodeB (HeNB), Microcell (femto cell) base station, repeater (relay), remote radio (Radio Remote Header, RRH) etc.
In existing LTE version 8/9/10 (R8/9/10) system, the base station is the user assignment uplink transmission resource by issuing upstream dispatching instructions, for example, the base station is that a certain user issues upstream dispatching instructions at descending sub frame T, this user will carry out uplink at sub-frame of uplink T+4, be also that sub-frame of uplink T+4 is sub-frame of uplink corresponding to descending sub frame T; The base station is receiving that this user, will be at descending sub frame T+8 to this user feedback physical mixed automatic re-transmission indicating channel (PHICH) information, i.e. descending ACK/NACK information after the upstream data that sub-frame of uplink T+4 sends.
Owing to being operated on identical frequency range in macro cell base station under the isomery scene and lower powered base station, may be subject to strong interference between down control channel or signal and cause demodulation performance to descend, affect the performance of system.At present, in the R10 system, for fear of the interference between macro base station and low power base station, having determined can be by causing the accurate blank subframe of interference base station side configuration (the Almost Blank Subframe of interference to other base stations, ABS) to reduce the interference to other interfered base stations, like this, interfered base station just can configure the user that on the position of ABS, scheduling is disturbed at interference base station.In addition, in order to guarantee the compatibility to the R8/9 system, can transmission system block of information 1/ paging on ABS (System Information Block1/Paging Occasion, SIB1/PO) information, but can not the exclusive dispatch command of transmission user on ABS.That is to say, the base station can not be for the user issues upstream dispatching instructions on ABS, therefore on sub-frame of uplink position corresponding to this ABS, transmitting uplink data can not be arranged.For example, if descending sub frame T is configured to ABS, the user can't carry out uplink at sub-frame of uplink T+4.The situation that obviously, can cause like this ascending resource waste.
Based on above-mentioned situation, method across subframe scheduling has been proposed, by across subframe scheduling, the base station can issue upstream dispatching instructions for the user on a descending sub frame, carry out transmitting uplink data on the sub-frame of uplink that Dictating user is in office after being intended to, also, even descending sub frame T is ABS, the base station also can be by carrying out uplink across other descending sub frame Dictating users of subframe scheduling method reason at sub-frame of uplink T+4, thereby can effectively solve the situation that ascending resource is wasted.
But, in the situation that be to need at present one of problem that solves across the descending sub frame position of subframe scheduling how to confirm feedback PHICH information (descending ACK/NACK information).
Summary of the invention
In order to address the above problem, embodiments of the invention provide transmission method and the device of physical hybrid automatic repeat request indicator channel information.
The transmission method of a kind of physical hybrid automatic repeat request indicator channel PHICH information that the embodiment of the present invention provides comprises: the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink of feedback is determined in the base station according to the accurate blank subframe ABS pattern of self; If receive the upstream data from user terminal UE, feed back the PHICH information of corresponding described upstream data on the descending sub frame of determining.
Wherein, the descending sub frame of determining the PHICH information of the corresponding described upstream data of feedback according to the ABS pattern of self comprises: determine respectively according to the ABS pattern of self whether descending sub frame corresponding to each sub-frame of uplink be available, if available, the descending sub frame of correspondence can be defined as feeding back the descending sub frame to the PHICH information of institute's transmit ascending data on should sub-frame of uplink; Otherwise, seek apart from the nearest available descending sub frame of this descending sub frame as the descending sub frame of feedback to the PHICH information of institute's transmit ascending data on should sub-frame of uplink according to the ABS pattern of self.
Determine respectively descending sub frame corresponding to each sub-frame of uplink available comprising whether: determine respectively whether descending sub frame corresponding to each sub-frame of uplink is ABS, if so, unavailable; If not, available; Described ABS pattern according to self is sought apart from the nearest available descending sub frame of this descending sub frame and comprised as the descending sub frame of feedback to the PHICH information of institute's transmit ascending data on should sub-frame of uplink: corresponding sub-frame of uplink i seeks nearest the satisfying condition apart from descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as feeding back the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
The descending sub frame of determining the PHICH information of the corresponding described upstream data of feedback according to the ABS pattern of self comprises:
Step 1015 during less than the number U of total sub-frame of uplink corresponding to ABS pattern, makes i=i+1 as i, then, returns to step 1012; When i equals the number U of total sub-frame of uplink corresponding to ABS pattern, process ends.
Said method further comprises: the base station is by radio resource control RRC signaling, media access control MAC control unit CE, operation and maintenance O﹠amp; The M signaling will determine to receive the descending sub frame method notice UE of PHICH information.
The transmission method of a kind of physical mixed automatic re-transmission indicating channel PHICH information that the embodiment of the present invention provides comprises: the accurate blank subframe ABS pattern that user terminal UE issues according to the base station determines to receive the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink; And after the transmission upstream data, receive on the descending sub frame of determining PHICH information that should upstream data.
Wherein, the descending sub frame that the ABS pattern that issues according to the base station is determined to receive to PHICH information that should upstream data comprises: determine respectively according to the ABS pattern that the base station issues whether descending sub frame corresponding to each sub-frame of uplink be available, if available, the descending sub frame of correspondence is defined as receiving the descending sub frame to the PHICH information of institute's transmit ascending data on should sub-frame of uplink; Otherwise the ABS pattern that issues according to the base station is sought apart from the nearest available descending sub frame of this descending sub frame as the descending sub frame that receives the PHICH information of institute's transmit ascending data on should sub-frame of uplink.
Determine respectively descending sub frame corresponding to each sub-frame of uplink available comprising whether: determine respectively whether descending sub frame corresponding to each sub-frame of uplink is ABS, if so, unavailable; If not, available;
The described ABS pattern that issues according to the base station is sought apart from the nearest available descending sub frame of this descending sub frame and comprised as the descending sub frame that receives the PHICH information of institute's transmit ascending data on should sub-frame of uplink: corresponding sub-frame of uplink i seeks nearest the satisfying condition apart from descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as receiving the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
The descending sub frame that the ABS pattern that issues according to the base station is determined to receive to PHICH information that should upstream data comprises:
Step 3011, the numbering i that sub-frame of uplink is set equals 1;
Step 3012 determines according to the ABS pattern that the base station issues whether descending sub frame i+4 is ABS, and if so, execution in step 3013; Otherwise, execution in step 3014;
Step 3013, seek after descending sub frame i+4 apart from nearest the satisfying condition of descending sub frame i+4:
Descending sub frame, with its descending sub frame that is defined as receiving the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, then execution in step 3015; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up;
Step 3014 is defined as descending sub frame i+4 to receive the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, and then execution in step 3015;
Step 3015 during less than the number U of total sub-frame of uplink corresponding to ABS pattern, makes i=i+1 as i, then returns to step 3012; When i equals the number U of total sub-frame of uplink corresponding to ABS pattern, process ends.
Said method further comprises: UE is by radio resource control RRC signaling, media access control MAC control unit CE, operation and maintenance O﹠amp; The descending sub frame method of definite reception PHICH information that M signaling reception base station issues.
A kind of base station that the embodiment of the present invention provides comprises: the first subframe determining unit is used for determining according to the accurate blank subframe ABS pattern of self descending sub frame of the physical mixed automatic re-transmission indicating channel PHICH information of corresponding each sub-frame of uplink of feedback institute transmit ascending data; PHICH information feedback unit is used for after receiving from the upstream data of user terminal UE on the descending sub frame of determining feedback to PHICH information that should upstream data.
The first subframe determining unit comprises: the first judge module and first is searched module, wherein, described the first judge module is used for determining according to the ABS pattern of self whether descending sub frame i+4 corresponding to each sub-frame of uplink i is ABS, if not, this descending sub frame i+4 is defined as feeding back the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; If so, trigger first and search the suitable descending sub frame of module searches; Described first searches module is used for seeking apart from nearest the satisfying condition of descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as feeding back the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, above-mentioned U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
Above-mentioned base station further comprises: notification unit is used for by the radio resource control RRC signaling media access control MAC control unit CE, operation and maintenance O﹠amp; The M signaling will determine to receive the descending sub frame method notice UE of PHICH information.
A kind of user terminal UE that the embodiment of the present invention provides comprises: the second subframe determining unit, and the accurate blank subframe ABS pattern that is used for issuing according to the base station determines to receive the descending sub frame of the physical mixed automatic re-transmission indicating channel PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink; The PHICH information receiving unit be used for to send the PHICH information that receives after upstream data should upstream data on the descending sub frame of determining.
The second subframe determining unit comprises that the second judge module and second searches module; Described the second judge module is used for determining according to the ABS pattern that the base station issues whether descending sub frame i+4 corresponding to each sub-frame of uplink i is ABS, if not, this descending sub frame i+4 is defined as receiving the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; If so, trigger second and search the suitable descending sub frame of module searches; Second searches module is used for seeking apart from nearest the satisfying condition of descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as receiving the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; Described U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
Above-mentioned UE further comprises: receiving element is used for by the radio resource control RRC signaling media access control MAC control unit CE, operation and maintenance O﹠amp; The descending sub frame method of definite reception PHICH information that M signaling reception base station issues.
This shows, by the method and apparatus of the embodiment of the present invention, base station and UE can be in the situation that solve the how to confirm feedback or receive the problem of position of the descending sub frame of PHICH information across subframe scheduling.
Description of drawings
Fig. 1 is that the transmission method of the described PHICH information of the embodiment of the present invention is at the flow chart of base station side;
Fig. 2 is that in the transmission method of the described PHICH information of the embodiment of the present invention, the method flow diagram of the descending sub frame of feedback PHICH information is determined in the base station according to the ABS pattern of self;
Fig. 3 is that the transmission method of the described PHICH information of the embodiment of the present invention is at the flow chart of UE side;
Fig. 4 is that in the transmission method of the described PHICH information of the embodiment of the present invention, UE determines to receive the method flow diagram of the descending sub frame of PHICH information according to the ABS pattern of base station;
Fig. 5 is the internal structure schematic diagram of the described base station of the embodiment of the present invention;
Fig. 6 is the internal structure schematic diagram of the described UE of the embodiment of the present invention.
Embodiment
Embodiments of the invention provide a kind of transmission method of PHICH information, can be in the situation that determine the descending sub frame position of feedback or reception PHICH information across subframe scheduling.Describe the described method of the present embodiment in detail below in conjunction with accompanying drawing and concrete example.
Fig. 1 has shown that the present embodiment is described in the situation that configured across the transmission method of the subframe scheduling PHICH information flow process in base station side.As shown in Figure 1, the method comprises:
Describe the base station described in above-mentioned steps 101 in detail below in conjunction with accompanying drawing and concrete example and determine that according to the ABS pattern of self feedback is to the method for the descending sub frame of PHICH information that should the UE upstream data.In the method, at first the base station determines respectively according to the ABS pattern of self whether descending sub frame corresponding to each sub-frame of uplink be available, if available, the descending sub frame of correspondence can be defined as feeding back the descending sub frame to the PHICH information of institute's transmit ascending data on should sub-frame of uplink; Otherwise, seek apart from the nearest available descending sub frame of this descending sub frame as the descending sub frame of feedback to the PHICH information of institute's transmit ascending data on should sub-frame of uplink according to the ABS pattern of self.Wherein, the base station can be by determining respectively whether descending sub frame corresponding to each sub-frame of uplink is that ABS determines whether descending sub frame is available, for example if ABS is unavailable; If not ABS, available.In addition, seeking the available descending sub frame nearest apart from this descending sub frame according to the ABS pattern of self as feedback during to the descending sub frame of the PHICH information of institute's transmit ascending data on should sub-frame of uplink, the base station can be sought apart from nearest the satisfying condition of descending sub frame i+4 after the descending sub frame i+4 of corresponding sub-frame of uplink i
Descending sub frame, it is defined as feeding back the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i.Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
Fig. 2 has shown that in the present embodiment, the concrete grammar of the descending sub frame of feedback PHICH information is determined in the base station according to the ABS pattern of self.As shown in Figure 2, the method mainly comprises:
Step 1015 during less than the number U of total sub-frame of uplink corresponding to ABS pattern, makes i=i+1 as i, then, returns to step 1012; When i equals the number U of total sub-frame of uplink of correspondence in an ABS pattern, process ends.
Can determine respectively the descending sub frame position of the PHICH information that each sub-frame of uplink corresponding to ABS pattern of feedback need to feed back by above-mentioned steps 1011-1015 base station, and the PHICH information (descending ACK/NACK information) that can guarantee whole system can be distributed on all available descending sub frames uniformly, and can be not a large amount of concentrate on certain several descending sub frame, thereby can effectively avoid PHICH information to block the generation of (PHICH B1ocking) situation.
Fig. 3 has shown that the transmission method of the described PHICH information of the present embodiment is in the flow process of UE side.As shown in Figure 3, the method comprises:
Describe below in conjunction with accompanying drawing and concrete example ABS pattern that the UE described in above-mentioned steps 301 issues according to the base station in detail and determine to receive method to the descending sub frame of PHICH information that should upstream data.In the method, the ABS pattern that at first UE issues according to the base station determines respectively whether descending sub frame corresponding to each sub-frame of uplink be available, if available, the descending sub frame of correspondence can be defined as receiving the descending sub frame to the PHICH information of institute's transmit ascending data on should sub-frame of uplink; Otherwise the ABS pattern that further issues according to the base station is sought apart from the nearest available descending sub frame of this descending sub frame as the descending sub frame that receives the PHICH information of institute's transmit ascending data on should sub-frame of uplink.Wherein, UE can be by determining respectively whether descending sub frame corresponding to each sub-frame of uplink is that ABS determines whether descending sub frame is available, for example if ABS is unavailable; If not ABS, available.In addition, when the ABS pattern that issues according to the base station was sought the available descending sub frame nearest apart from this descending sub frame as the descending sub frame that receives the PHICH information of institute's transmit ascending data on should sub-frame of uplink, UE can seek apart from nearest the satisfying condition of descending sub frame i+4 after the descending sub frame i+4 of corresponding sub-frame of uplink i
Descending sub frame, it is defined as receiving the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i.Wherein U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
Fig. 4 has shown that ABS pattern that in the present embodiment, UE issues according to the base station determines to receive the concrete grammar of the descending sub frame of PHICH information.As shown in Figure 4, the method mainly comprises:
Step 3011, the numbering i that sub-frame of uplink is set equals 1;
Step 3012 determines according to the ABS pattern that the base station issues whether descending sub frame i+4 is ABS, and if so, execution in step 3013; Otherwise, execution in step 3014;
Step 3013, seek after descending sub frame i+4 apart from nearest the satisfying condition of descending sub frame i+4:
Descending sub frame, with its descending sub frame that is defined as receiving the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, then execution in step 3015;
Step 3014 is defined as descending sub frame i+4 to receive the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, and then execution in step 3015;
Step 3015 during less than the number U of total sub-frame of uplink corresponding to ABS pattern, makes i=i+1 as i, then returns to step 3012; When i equals the number U of total sub-frame of uplink corresponding to ABS pattern, process ends.
By above-mentioned steps 3011-3015, UE can determine to receive the descending sub frame of the PHICH information that in an ABS pattern, each sub-frame of uplink is corresponding, and the PHICH information (descending ACK/NACK information) that can guarantee whole system can be distributed on all available descending sub frames uniformly, and can be not a large amount of concentrate on certain several descending sub frame, thereby can effectively avoid the generation of PHICH information congestion situations.
In addition, can find out from said method, can determine to receive the descending sub frame of PHICH information in order to make UE, need the base station to notify the UE ABS pattern of this base station.Particularly, system information can be passed through in the base station, MAC CE, the ABS pattern of RRC signaling UE this base station.
Need to prove in addition, above-mentioned base station determines that according to the method for the descending sub frame of the definite feedback of the ABS pattern PHICH information of self and the ABS pattern that UE issues according to the base station method of the descending sub frame of reception PHICH information can be configured in respectively in base station and UE in advance.In addition, the ABS pattern that above-mentioned UE issues according to the base station determines that the method for the descending sub frame of reception PHICH information also can be configured to UE by the base station, particularly, system information can be passed through in the base station, for example, Radio Resource is controlled (RRC) signaling, media access control (MAC) control unit (CE), operation and maintenance (O﹠amp; M) signaling is notified UE with the method; UE passes through radio resource control RRC signaling, media access control MAC control unit CE, operation and maintenance O﹠amp; The descending sub frame method of definite reception PHICH information that M signaling reception base station issues.
Corresponding said method, the present embodiment also provide base station and the UE that carries out said method.Wherein, the internal structure of base station mainly comprises as shown in Figure 5:
The first subframe determining unit 501, be used for according to the ABS pattern of self determine feedback to should each sub-frame of uplink the descending sub frame of PHICH information of institute's transmit ascending data;
PHICH information feedback unit 502 is used for after receiving from the upstream data of UE on the descending sub frame of determining feedback to PHICH information that should upstream data.
Wherein, above-mentioned the first subframe determining unit 501 comprises that the first judge module 5011 and first searches module 5012.
Wherein, above-mentioned the first judge module 5011 is used for determining according to the ABS pattern of self whether descending sub frame i+4 corresponding to each sub-frame of uplink i is ABS, if not, this descending sub frame i+4 is defined as feeding back the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; If so, triggering first searches module 5012 and searches suitable descending sub frame;
Above-mentioned first searches module 5012 is used for seeking apart from nearest the satisfying condition of descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as feeding back the subframe of the PHICH information of the transmit ascending data i of institute on corresponding sub-frame of uplink.
As previously mentioned, above-mentioned U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
The base station may further include: notification unit is used for by the RRC signaling MAC CE, O﹠amp; The M signaling will determine to receive the descending sub frame method notice UE of PHICH information.
The internal structure of UE comprises as shown in Figure 6:
The second subframe determining unit 601, the ABS pattern that is used for issuing according to the base station determines to receive the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink;
PHICH information receiving unit 602 be used for to send the PHICH information that receives after upstream data should upstream data on the descending sub frame of determining.
Wherein, above-mentioned the second subframe determining unit 601 comprises that the second judge module 6011 and second searches module 6012.
Wherein, above-mentioned the second judge module 6011 is used for determining according to the ABS pattern that the base station issues whether descending sub frame i+4 corresponding to each sub-frame of uplink i is ABS, if not, this descending sub frame i+4 is defined as receiving the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; If so, triggering second searches module 6012 and searches suitable descending sub frame;
Second searches module 6012 is used for seeking apart from nearest the satisfying condition of descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as receiving the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i.
As previously mentioned, above-mentioned U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
Above-mentioned UE further comprises: receiving element is used for by the RRC signaling MAC CE, O﹠amp; The descending sub frame method of definite reception PHICH information that M signaling reception base station issues.
By the method and apparatus of the embodiment of the present invention, base station and UE can be in the situation that solve the how to confirm feedback or receive the problem of position of the descending sub frame of PHICH information across subframe scheduling.And, in the above-described embodiments, base station and UE can determine to feed back or receive the descending sub frame of PHICH information corresponding to each sub-frame of uplink corresponding to ABS pattern, and the PHICH information (descending ACK/NACK information) that can guarantee whole system can be distributed on all available descending sub frames uniformly, and can be not a large amount of concentrate on certain several descending sub frame, thereby can effectively avoid the generation of PHICH information congestion situations.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, is equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (16)
1. the transmission method of a physical hybrid automatic repeat request indicator channel PHICH information, is characterized in that, comprising:
The descending sub frame of the PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink of feedback is determined in the base station according to the accurate blank subframe ABS pattern of self;
If receive the upstream data from user terminal UE, feed back the PHICH information of corresponding described upstream data on the descending sub frame of determining.
2. method according to claim 1, wherein, described ABS pattern according to self determines that the descending sub frame of the PHICH information of the corresponding described upstream data of feedback comprises:
Determine respectively according to the ABS pattern of self whether descending sub frame corresponding to each sub-frame of uplink be available, if available, the descending sub frame of correspondence can be defined as feeding back the descending sub frame to the PHICH information of institute's transmit ascending data on should sub-frame of uplink; Otherwise, seek apart from the nearest available descending sub frame of this descending sub frame as the descending sub frame of feedback to the PHICH information of institute's transmit ascending data on should sub-frame of uplink according to the ABS pattern of self.
3. method according to claim 2, wherein, describedly determine respectively descending sub frame corresponding to each sub-frame of uplink available comprising whether: determine respectively whether descending sub frame corresponding to each sub-frame of uplink is ABS, if so, unavailable; If not, available;
Described ABS pattern according to self is sought apart from the nearest available descending sub frame of this descending sub frame and comprised as the descending sub frame of feedback to the PHICH information of institute's transmit ascending data on should sub-frame of uplink: corresponding sub-frame of uplink i seeks nearest the satisfying condition apart from descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as feeding back the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
4. method according to claim 1, wherein, described ABS pattern according to self determines that the descending sub frame of the PHICH information of the corresponding described upstream data of feedback comprises:
Step 1011, the numbering i that sub-frame of uplink is set equals 1;
Step 1012 determines according to the ABS pattern of self whether descending sub frame i+4 is ABS, and if so, execution in step 1013; Otherwise, execution in step 1014;
Step 1013, seek after descending sub frame i+4 apart from nearest the satisfying condition of descending sub frame i+4:
Descending sub frame, it is defined as feeding back the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, then, execution in step 1015; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up;
Step 1014 is defined as descending sub frame i+4 to feed back the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, and then execution in step 1015;
Step 1015 during less than the number U of total sub-frame of uplink corresponding to ABS pattern, makes i=i+1 as i, then, returns to step 1012; When i equals the number U of total sub-frame of uplink corresponding to ABS pattern, process ends.
5. method according to claim 1 wherein, further comprises: the base station is by radio resource control RRC signaling, media access control MAC control unit CE, operation and maintenance O﹠amp; The M signaling will determine to receive the descending sub frame method notice UE of PHICH information.
6. the transmission method of a physical mixed automatic re-transmission indicating channel PHICH information, is characterized in that, comprising:
The accurate blank subframe ABS pattern that user terminal UE issues according to the base station determines to receive the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink; And
After sending upstream data, receive on the descending sub frame of determining PHICH information that should upstream data.
7. method according to claim 6, wherein, the descending sub frame that the ABS pattern that issues according to the base station is determined to receive to PHICH information that should upstream data comprises:
The ABS pattern that issues according to the base station determines respectively whether descending sub frame corresponding to each sub-frame of uplink be available, if available, the descending sub frame of correspondence is defined as receiving the descending sub frame to the PHICH information of institute's transmit ascending data on should sub-frame of uplink; Otherwise the ABS pattern that issues according to the base station is sought apart from the nearest available descending sub frame of this descending sub frame as the descending sub frame that receives the PHICH information of institute's transmit ascending data on should sub-frame of uplink.
8. method according to claim 7, wherein, describedly determine respectively descending sub frame corresponding to each sub-frame of uplink available comprising whether: determine respectively whether descending sub frame corresponding to each sub-frame of uplink is ABS, if so, unavailable; If not, available;
The described ABS pattern that issues according to the base station is sought apart from the nearest available descending sub frame of this descending sub frame and comprised as the descending sub frame that receives the PHICH information of institute's transmit ascending data on should sub-frame of uplink: corresponding sub-frame of uplink i seeks nearest the satisfying condition apart from descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as receiving the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
9. method according to claim 6, wherein, the descending sub frame that the ABS pattern that issues according to the base station is determined to receive to PHICH information that should upstream data comprises:
Step 3011, the numbering i that sub-frame of uplink is set equals 1;
Step 3012 determines according to the ABS pattern that the base station issues whether descending sub frame i+4 is ABS, and if so, execution in step 3013; Otherwise, execution in step 3014;
Step 3013, seek after descending sub frame i+4 apart from nearest the satisfying condition of descending sub frame i+4:
Descending sub frame, with its descending sub frame that is defined as receiving the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, then execution in step 3015; Wherein, U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up;
Step 3014 is defined as descending sub frame i+4 to receive the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, and then execution in step 3015;
Step 3015 during less than the number U of total sub-frame of uplink corresponding to ABS pattern, makes i=i+1 as i, then returns to step 3012; When i equals the number U of total sub-frame of uplink corresponding to ABS pattern, process ends.
10. method according to claim 6 wherein, further comprises: UE is by radio resource control RRC signaling, media access control MAC control unit CE, operation and maintenance O﹠amp; The descending sub frame method of definite reception PHICH information that M signaling reception base station issues.
11. a base station is characterized in that, comprising:
The first subframe determining unit is used for determining according to the accurate blank subframe ABS pattern of self descending sub frame of the physical mixed automatic re-transmission indicating channel PHICH information of corresponding each sub-frame of uplink of feedback institute transmit ascending data;
PHICH information feedback unit is used for after receiving from the upstream data of user terminal UE on the descending sub frame of determining feedback to PHICH information that should upstream data.
12. base station according to claim 11 is characterized in that, described the first subframe determining unit comprises: the first judge module and first is searched module, wherein,
Described the first judge module is used for determining according to the ABS pattern of self whether descending sub frame i+4 corresponding to each sub-frame of uplink i is ABS, if not, this descending sub frame i+4 is defined as feeding back the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; If so, trigger first and search the suitable descending sub frame of module searches;
Described first searches module is used for seeking apart from nearest the satisfying condition of descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as feeding back the subframe of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i, above-mentioned U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
13. base station according to claim 11 further comprises:
Notification unit is used for by the radio resource control RRC signaling media access control MAC control unit CE, operation and maintenance O﹠amp; The M signaling will determine to receive the descending sub frame method notice UE of PHICH information.
14. a user terminal UE is characterized in that, comprising:
The second subframe determining unit, the accurate blank subframe ABS pattern that is used for issuing according to the base station determines to receive the descending sub frame of the physical mixed automatic re-transmission indicating channel PHICH information of institute's transmit ascending data on corresponding each sub-frame of uplink;
The PHICH information receiving unit be used for to send the PHICH information that receives after upstream data should upstream data on the descending sub frame of determining.
15. UE according to claim 14, described the second subframe determining unit comprises that the second judge module and second searches module;
Described the second judge module is used for determining according to the ABS pattern that the base station issues whether descending sub frame i+4 corresponding to each sub-frame of uplink i is ABS, if not, this descending sub frame i+4 is defined as receiving the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; If so, trigger second and search the suitable descending sub frame of module searches;
Second searches module is used for seeking apart from nearest the satisfying condition of descending sub frame i+4 after descending sub frame i+4
Descending sub frame, it is defined as receiving the descending sub frame of the PHICH information of institute's transmit ascending data on corresponding sub-frame of uplink i; Described U represents the number of total sub-frame of uplink that ABS pattern is corresponding; D represents the number that is not configured to the descending sub frame of ABS in an ABS pattern; N
dRepresent and fed back what PHICH information on a descending sub frame; Oeprator
Represent the computing that rounds up.
16. UE according to claim 14 further comprises:
Receiving element is used for by the radio resource control RRC signaling media access control MAC control unit CE, operation and maintenance O﹠amp; The descending sub frame method of definite reception PHICH information that M signaling reception base station issues.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104307053A CN103178944A (en) | 2011-12-20 | 2011-12-20 | Transmission method and device of physical hybrid automatic repeat request indicator channel information |
| JP2012259966A JP6029952B2 (en) | 2011-12-20 | 2012-11-28 | Method and apparatus for transmitting physical hybrid automatic repeat request instruction channel information |
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| JP2013214946A (en) | 2013-10-17 |
| JP6029952B2 (en) | 2016-11-24 |
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