CN101909327B - Fixed resource allocation methods - Google Patents
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- CN101909327B CN101909327B CN200910158895.0A CN200910158895A CN101909327B CN 101909327 B CN101909327 B CN 101909327B CN 200910158895 A CN200910158895 A CN 200910158895A CN 101909327 B CN101909327 B CN 101909327B
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Abstract
The invention discloses fixed resource allocation methods, in a kind of fixed resource allocation methods wherein, base station is terminal distribution first fixed resource, the first data feedback channel at kth frame; Base station is terminal distribution second fixed resource, the second data feedback channel at m frame; Wherein, the second data feedback channel is different from the first data feedback channel, k and m is integer, and m is greater than k.By the present invention, in fixed resource assigning process, successively distribute different feedback channels, avoid reusing of feedback channel, thus the erroneous judgement of base station can be avoided.
Description
Technical field
The present invention relates to the communications field, particularly, relate to fixed resource allocation methods.
Background technology
In a wireless communication system, base station is communicated by Uplink/Downlink with equipment, and wherein, descending (forward direction) refers to that the direction of terminal is arrived in base station, and up (oppositely) refers to the direction of terminal to base station.In common application, multiple terminal can send data by up link to base station simultaneously, also can receive data from base station by down link simultaneously simultaneously.
Undertaken in the data transmission system of scheduling controlling by base station, the dispatching distribution of system resource has been come by base station usually, and such as, resource here can be the downlink resource of base station when carrying out downlink transfer and terminal ascending resource when carrying out uplink.
At present, in order to effectively reduce wireless communication system control overhead to increase the throughput of whole system, usual employing fixed resource distribution technique, by this technology, can reduce there is specific transmission cycle and data packet length relatively-stationary terminal resource distribution description expense, thus improve systematic function.Usually, the process of Resourse Distribute can comprise message definition, resource goes the operations such as distribution, redistribute resources.
For IEEE 802.16 standard, base station is that terminal (Mobile Station) MS-A distributes fixed resource by fixed resource assignment messages PersistentA-MAP IE at kth frame, assignment period is 4 frames, namely, MS-A is at kth frame, (k+4) frame ..., (k+N*4) frame uses base station to be the fixed resource that it distributes.It should be noted that, in the present invention, the frame number of system increases in time gradually, and such as system X frame brings into operation, follow-up frame number (X+1) frame successively, (X+2) frame, ..., (X+Z) frame ..., wherein X is integer, Z is positive integer, and wherein X represents temporal starting point, the time relationship that Z representative frame is relative with between frame.
At present, base station is data feedback channel (HARQ the FeedbackChannel) (HARQ by terminal, Hybrid Automatic Repeat Request) condition adjudgement terminal whether successfully have received fixed resource assignment messages, if base station receives ACK or NACK message on data feedback channel, then judge that terminal successfully have received fixed resource assignment messages, if base station does not receive any content on data feedback channel, namely, data feedback channel is (NULL) state, then think that terminal does not successfully receive fixed resource assignment messages.
For fixed resource code reassignment process, supposing that base station is wanted at (k+8) frame is that MS-A redistributes fixed resource, and the data feedback channel distributed in relevant fixed resource assignment messages is identical with the data feedback channel that base station distributes to MS-A at kth frame by fixed resource assignment messages, as shown in Figure 1, HF1 is.Now, even if MS-A does not receive the fixed resource assignment messages of base station transmission at (k+8) frame, also can continue to send feedback information on the data feedback channel of kth frame distribution, for MS-A, it can think that base station does not upgrade or cancels the fixed resource for it distributes, and continuation is used original fixed resource by MS-A.Like this, because kth frame is identical with the data feedback channel of (k+8) frame, MS-A successfully have received the fixed resource assignment messages of (k+8) frame transmission to cause base station to judge mistakenly.The mode of base station distribute data feedback channel in fixed resource assignment messages has multiple, such as base station clearly indicates described data feedback channel by field, or allows counterpart terminal know described data feedback channel for saving control overhead by the mapping relations of standard default.
Assigning process is removed for fixed resource, suppose that base station is the fixed resource that MS-A removes to be distributed in kth frame and distributes at (k+16) frame by fixed resource assignment messages, if the proprietary feedback channel (being called for short MAP feedback channel) receiving success or not for feeding back assignment messages distributed for MS-A in this fixed resource assignment messages is identical with the data feedback channel distributed for MS-A in the fixed resource assignment messages of kth frame, as shown in Figure 1, be HF1, even if then MS-A does not receive the fixed resource assignment messages of base station transmission at (k+16) frame, also can continue to send feedback information on the data feedback channel HF1 of kth frame distribution, like this, because kth frame is identical with the data feedback channel of (k+16) frame, therefore base station can be caused to judge mistakenly, and MS-A successfully have received the fixed resource assignment messages of (k+16) frame transmission.
Summary of the invention
For exist in correlation technique at fixed resource code reassignment or go in assigning process, due to terminal reuse identical feedback channel cause base station correctly to judge whether terminal have received the problem of related news and proposes the present invention, for this reason, the present invention aims to provide a kind of fixed resource allocation methods of improvement, in order to solve the problem one of at least.
In the present invention, the frame number of system increases in time gradually.
According to an aspect of the present invention, a kind of fixed resource allocation methods is provided.According in the fixed resource allocation methods of the embodiment of the present invention, base station sends instruction at kth frame to terminal, is described terminal distribution first fixed resource, the first data feedback channel; Base station sends instruction at m frame to described terminal, is described terminal distribution second fixed resource, the second data feedback channel; Wherein, the second data feedback channel is different from the first data feedback channel, k and m is integer, and m is greater than k.
Preferably, said method also comprises: instruction notification terminal fixed resource assignment period is passed through at kth frame in base station.
Preferably, m=k+N*AP, wherein, N is positive integer, and AP is fixed resource assignment period.
Preferably, the first fixed resource and/or the second fixed resource, lay respectively in one or more subframe.
Preferably, the subframe at the part or all of resource place of the first fixed resource and the second fixed resource, the relative position in affiliated frame is identical.
Preferably, the subframe at the original position place of the first fixed resource and the second fixed resource, the relative position in affiliated frame is identical.
Preferably, the subframe at the end position place of the first fixed resource and the second fixed resource, the relative position in affiliated frame is identical.
Preferably, method also comprises: base station is after m frame distributes the second fixed resource, and terminal uses the second fixed resource, does not re-use the first fixed resource.
Preferably, the distribution of the second fixed resource, the second data feedback channel and/or the first fixed resource, the first data feedback channel is carried out in base station by fixed resource assignment messages.
Preferably, base station retains the first feedback channel at m frame, does not reallocate to the first feedback channel.
Preferably, the first feedback channel is distributed at (m+p) frame in base station, and wherein p is positive integer.
Preferably, base station before (m+p) frame or (m+p) frame determine described terminal successfully receive m frame send described signaling.
According to a further aspect in the invention, a kind of fixed resource allocation methods is additionally provided.
In the above-mentioned methods, base station sends fixed resource assignment messages at kth frame to terminal, is described terminal distribution fixed resource, the first data feedback channel; Base station sends fixed resource assignment messages at m frame to terminal, and wherein, fixed resource assignment messages goes batch operation in order to instruction to fixed resource, and is described terminal distribution second data feedback channel; Wherein, the second data feedback channel is different from the first data feedback channel, k and m is integer, and m is greater than k.
Preferably, said method also comprises: base station is at kth frame notification terminal fixed resource assignment period.
Preferably, m=k+N*AP, wherein, N is positive integer, and AP is fixed resource assignment period.
Preferably, base station retains the first feedback channel at m frame, does not reallocate to the first feedback channel.
Preferably, the first feedback channel is distributed at (m+p) frame in base station, and wherein p is positive integer.
Preferably, base station before (m+p) frame or (m+p) frame determine described terminal successfully receive m frame send described signaling.
According to a further aspect in the invention, a kind of fixed resource allocation methods is additionally provided.
Base station is terminal distribution first fixed resource, fixed resource assignment period at kth frame by instruction; Base station is terminal distribution second fixed resource at m frame;
Wherein, k and m is integer, and m is greater than k, and m is not equal to (k+N*AP), and wherein, N is positive integer, and AP is fixed resource assignment period.
Preferably, the first fixed resource and/or the second fixed resource, lay respectively in one or more subframe.
Preferably, the subframe at the part or all of resource place of the first fixed resource and the second fixed resource, the relative position in affiliated frame is identical.
Preferably, the subframe at the original position place of the first fixed resource and the second fixed resource, the relative position in affiliated frame is identical.
Preferably, the subframe at the end position place of the first fixed resource and the second fixed resource, the relative position in affiliated frame is identical.
Preferably, the distribution of the first fixed resource and/or the second fixed resource is carried out in base station by fixed resource assignment messages.
According to a further aspect in the invention, a kind of fixed resource allocation methods is additionally provided.
Base station sends fixed resource assignment messages at kth frame, is terminal distribution fixed resource, fixed resource assignment period; Base station can not send fixed resource assignment messages at m frame to terminal, and wherein, fixed resource assignment messages goes batch operation in order to instruction to described fixed resource; Wherein, k and m is integer, and m is greater than k, and m is not equal to (k+N*AP), and wherein, N is positive integer, and AP is fixed resource assignment period.
According to a further aspect in the invention, a kind of fixed resource allocation methods is additionally provided.
In the above-mentioned methods, base station sends fixed resource assignment messages at kth frame to terminal, is described terminal distribution fixed resource, the first data feedback channel; Base station sends fixed resource assignment messages at m frame to terminal, and wherein, fixed resource assignment messages goes batch operation in order to instruction to fixed resource, k and m is integer, and m is more than or equal to k; If base station receives on the first data feedback channel " successfully receiving " or " taking defeat " information, then base station thinks that terminal successfully receives the fixed resource assignment messages of m frame transmission, otherwise base station thinks that terminal does not successfully receive the fixed resource assignment messages of m frame transmission.
Preferably, reallocate to described first data feedback channel after confirming that described terminal successfully receives the described fixed resource assignment messages of described m frame transmission in described base station.
By at least one technical scheme above-mentioned of the present invention, different from the feedback channel distributed in fixed resource assigning process by fixed resource code reassignment or fixed resource being gone the feedback channel distributed in assigning process to be set to, can avoid reusing of feedback channel, thus by the feedback of feedback channel, base station can correctly judge whether terminal have received related news.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the fixed resource assigning process according to correlation technique;
Fig. 2 is the flow chart of the fixed resource allocation methods according to the embodiment of the present invention;
Fig. 3 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 1;
Fig. 4 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 2;
Fig. 5 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 3;
Fig. 6 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 4;
Fig. 7 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 5;
Fig. 8 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 6;
Fig. 9 is the schematic diagram of the fixed resource assigning process according to the embodiment of the present invention 8;
Figure 10 is the flow chart of the another kind of fixed resource allocation methods according to the embodiment of the present invention.
Figure 11 is the flow chart of the another kind of fixed resource allocation methods according to the embodiment of the present invention.
Figure 12 is the flow chart of the another kind of fixed resource allocation methods according to the embodiment of the present invention.
Embodiment
Be described the preferred embodiments of the present invention below in conjunction with accompanying drawing, if do not conflicted, the feature in the embodiment of the present invention and embodiment can combine mutually.
As mentioned above, under the fixed resource allocation scenarios shown in Fig. 1, base station is terminal distribution fixed resource PA1 at kth frame, distribute data feedback channel HF1, when base station is when (k+8) frame is MS-A code reassignment fixed resource PA2, if be still that MS-A distribute data feedback channel HF1 is as feedback channel in fixed resource assignment messages, then there will be when MS-A does not successfully receive the fixed resource assignment messages of base station transmission, MS-A thinks that any adjustment does not occur fixed resource PA1, can continue to use, still data can be received on PA1, and utilize data feedback channel HF1 to feed back the data whether successfully received on PA1, base station can be caused like this to judge by accident, cannot judge terminal whether successfully have received its (k+8) frame send fixed resource assignment messages.
Can find out, above-mentioned base station erroneous judgement is because reusing of feedback channel causes.For this reason, embodiments provide a kind of new fixed resource allocation methods, in the method, base station is gone in assigning process in resource re-allocation process or resource, data feedback channel for terminal distribution is different from the data feedback channel distributed in fixed resource assigning process, to avoid the erroneous judgement of base station.
Particularly, as shown in Figure 2, base station kth frame be terminal distribution first fixed resource (such as, PA1), the first data feedback channel (such as, HF1), batch operation here can be realized (step S202) by fixed resource assignment messages; Afterwards, base station sends fixed resource assignment messages (PA-MAP) at m frame to terminal, wherein, second fixed resource (such as, PA2) of promising terminal distribution, second data feedback channel (such as, HF2) (step S204) is carried in this fixed resource assignment messages, as mentioned above, second data feedback channel is different from the first data feedback channel, k and m is integer, and m is more than or equal to k.It should be noted that, in the present invention, the first feedback channel is different from the second feedback channel, such as, refer to that the physical resource shared by above-mentioned two channels is different, or, the sequence sent is different, or shared physical resource and sent sequence are all not identical.It should be noted that, in the present invention, kth frame and m frame delineation is absolute time relationship.
Preferably, in step S202, base station, at kth frame notification terminal fixed resource assignment period, such as, represents with AP (Allocation Period).Like this, in step S204, m frame is preferably kth+N*AP frame, and N is here positive integer.
It should be noted that, in embodiments of the present invention, the first fixed resource of distribution, the second fixed resource, can take a subframe, also can across multiple subframe.The present invention is not limited in this respect.But, if fixed resource is across multiple subframe, then preferably, the subframe at the part or all of resource place of the first fixed resource and the second fixed resource, relative position in affiliated frame is identical, relative position here, such as, referring to the position of subframe in frame, can be subframe numbers or subframe index etc.In this case, terminal, after the second fixed resource be assigned to, by use second fixed resource, and does not re-use the first fixed resource.
Preferably, can be identical with the relative position that the subframe at the original position place of the second fixed resource is set in affiliated frame by the first fixed resource further.Such as, the original position of the first fixed resource and the second fixed resource can be arranged on the subframe with identical subframe numbers.
Preferably, base station retains the first feedback channel at m frame, does not reallocate to the first feedback channel; The first feedback channel is distributed at (m+p) frame in base station, and wherein p is positive integer; Base station before (m+p) frame or (m+p) frame determine described terminal successfully receive m frame send described signaling.
Below further combined with drawings and Examples, the present invention will be described.In embodiment described below, if not otherwise specified, then suppose that a frame has 8 subframes, such as, can respectively by 0 ~ 7 numbering.
Embodiment 1
As shown in Figure 3, base station is terminal MS-A allocation of downlink fixed resource PA1 at kth frame by fixed resource assignment messages, and assignment period (AP) is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages, if base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully have received base station and sends at (k+8) frame can be thought in base station, if base station can't detect any content (NULLDetection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame can be thought in base station, base station can resend this information in subsequent frame or subframe, or, also directly send and go to distribute PA1 resource information to MS-A.
Preferably, if MS-A successfully receives fixed resource assignment messages at (k+8) frame, then terminal can stop at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
It may be noted that, in the various embodiments of the invention, data feedback channel can have different settings from the sequential relationship of fixed resource assignment messages according to the different requirements of specific implementation, do not require that the data feedback channel feedback ACK that kth frame sends to the fixed resource assignment messages of terminal must be indicated by this fixed resource assignment messages by terminal at kth frame or nack message are to base station, such as, data feedback channel can be positioned at (k+1) frame, or (k+2) frame etc.
Embodiment 2
As shown in Figure 4, base station is terminal MS-A allocation of downlink fixed resource PA1 (be positioned at form this frame the 6th subframe on) by fixed resource assignment messages at kth frame, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 (being positioned in the 6th subframe of this frame of formation) and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame can be thought in base station, on the contrary, if base station can't detect any content (NULL Detection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame is thought in base station, base station can resend this information or directly send and go to distribute PA1 resource information to MS-A in subsequent frame or subframe.
In this embodiment, the fixed resource PA1 of base station assigns and the fixed resource PA2 of code reassignment respectively takies a subframe, and the relative position of the subframe shared by the two in frame is identical, all the 6th subframe.
Preferably, if MS-A successfully receives at (k+8) frame receive fixed resource assignment messages, then terminal stops at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
Embodiment 3
As shown in Figure 5, base station is terminal MS-A allocation of downlink fixed resource PA1 (be positioned at form this frame the 1st subframe on) by fixed resource assignment messages PA-MAP at kth frame, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 (being positioned in the 1st ~ 6th subframe of this frame of formation) and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame can be thought in base station, on the contrary, if base station can't detect any content (NULL Detection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame is thought in base station, base station can resend this information or directly send and go to distribute PA1 resource information to MS-A in subsequent frame or subframe.
In this embodiment, the fixed resource PA1 of base station assigns takies a subframe, and the fixed resource PA2 of base station code reassignment takies multiple subframe, and the subframe that the part resource of fixed resource PA1 and fixed resource PA2 occupies has identical relative position in frame affiliated separately, that is, the 1st subframe.In addition, can find out, in this embodiment, the relative position of the initial subframe of resource of fixed resource PA1 and fixed resource PA2 is also identical, that is, be all positioned at the 1st subframe.
Preferably, if MS-A successfully receives fixed resource assignment messages at (k+8) frame, then terminal stops at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
Embodiment 4
As shown in Figure 6, base station is terminal MS-A allocation of downlink fixed resource PA1 (be positioned at form this frame the 1st ~ 8th subframe on) by fixed resource assignment messages at kth frame, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 (being positioned in the 1st subframe of this frame of formation) and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame is thought in base station, on the contrary, if base station can't detect any content (NULL Detection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame can be thought in base station, base station can resend this information or directly send and go to distribute PA1 resource information to MS-A in subsequent frame or subframe.
In this embodiment, the fixed resource PA1 of base station assigns takies multiple subframe, and the fixed resource PA2 of base station code reassignment takies a subframe, and the subframe that the part resource of fixed resource PA1 and fixed resource PA2 occupies has identical relative position in frame affiliated separately, that is, the 1st subframe.In addition, can find out, in this embodiment, the relative position of the initial subframe of resource of fixed resource PA1 and fixed resource PA2 is also identical, that is, be all positioned at the 1st subframe.
Preferably, if MS-A successfully receives fixed resource assignment messages at (k+8) frame, then terminal stops at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
Embodiment 5
As shown in Figure 7, base station is terminal MS-A allocation of downlink fixed resource PA1 (be positioned at form this frame the 1st ~ 8th subframe on) by fixed resource assignment messages at kth frame, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 (being positioned in the 2nd subframe of this frame of formation) and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame can be thought in base station, on the contrary, if base station can't detect any content (NULL Detection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame can be thought in base station, base station can resend this information or directly send and go to distribute PA1 resource information to MS-A in subsequent frame or subframe.
In this embodiment, the fixed resource PA1 of base station assigns takies multiple subframe, and the fixed resource PA2 of base station code reassignment takies a subframe, and the subframe that the part resource of fixed resource PA1 and fixed resource PA2 occupies has identical relative position in frame affiliated separately, that is, the 2nd subframe.
Preferably, if MS-A successfully receives fixed resource assignment messages at (k+8) frame, then terminal stops at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
Embodiment 6
As shown in Figure 8, base station is terminal MS-A allocation of downlink fixed resource PA1 (be positioned at form this frame the 1st ~ 5th subframe on) by fixed resource assignment messages PA-MAP at kth frame, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 (being positioned in the 3rd ~ 8th subframe of this frame of formation) and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame can be thought in base station, on the contrary, if base station can't detect any content (NULL Detection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame can be thought in base station, base station can resend this information or directly send and go to distribute PA1 resource information to MS-A in subsequent frame or subframe.
In this embodiment, the fixed resource PA1 of base station assigns takies multiple subframe, the fixed resource PA2 of base station code reassignment takies a subframe, the subframe that the part resource of fixed resource PA1 and fixed resource PA2 occupies has identical relative position in frame affiliated separately, that is, the 3rd, 4,5 subframe.
Preferably, if MS-A successfully receives fixed resource assignment messages at (k+8) frame, then terminal stops at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
Embodiment 7
As to the optional implementation of the one of above-described embodiment 3 ~ 6, suppose that base station is terminal MS-A allocation of downlink fixed resource PA1 at kth frame by fixed resource assignment messages, and assignment period be 4, data feedback channel is HF1, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+7) frame (namely, this frame is not the corresponding frame relevant with assignment period), base station is that MS-A code reassignment fixed resource PA2 (can be identical with HF1 with data feedback channel by fixed resource assignment messages, also can be different from HF1), after MS-A receives this message, think that base station is gone to be assigned as its fixed resource PA1 distributed, use newly assigned fixed resource PA2.
Embodiment 8
As shown in Figure 9, base station is terminal MS-A allocation of downlink fixed resource PA1 (be positioned at form this frame the 1st ~ 5th subframe on) by fixed resource assignment messages PA-MAP at kth frame, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A redistributes fixed resource PA2 (being positioned in the 4th ~ 5th subframe of this frame of formation) and data feedback channel HF2 (being different from kth frame is the feedback channel HF1 that MS-A distributes) by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame can be thought in base station, on the contrary, if base station can't detect any content (NULL Detection) on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame can be thought in base station, base station can resend this information or directly send and go to distribute PA1 resource information to MS-A in subsequent frame or subframe.
In this embodiment, the fixed resource PA1 of base station assigns takies multiple subframe, and the fixed resource PA2 of base station code reassignment takies a subframe, and the subframe that the part resource of fixed resource PA1 and fixed resource PA2 occupies has identical relative position in frame affiliated separately, that is, the 4th, 5 subframe.In addition, can find out, in this embodiment, the subframe at the end position place of fixed resource PA1 and fixed resource PA2, the relative position in the subframe belonging to is separately identical, that is, the 5th subframe.
Preferably, if MS-A successfully receives fixed resource assignment messages at (k+8) frame, then terminal stops at downlink data receiving on fixed resource PA1, transfers downlink data receiving on fixed resource PA2.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
Described above is fixed resource code reassignment process according to the embodiment of the present invention, can find out, the data feedback channel distributed in code reassignment process is different from the data feedback channel that fixed resource assigning process distributed in last time, thus reusing of data feedback channel can be avoided, make the base station terminal that can correctly judge whether have received related news.According to the embodiment of the present invention, additionally provide a kind of fixed resource allocation methods, wherein, relate generally to the code reassignment operation of fixed resource.
Fig. 9 is the flow chart of the fixed resource allocation methods of the embodiment of the present invention.Suppose that terminal obtains the information such as fixed resource, data feedback channel, assignment period AP at kth frame, as shown in Figure 10, mainly comprise following process:
Step S1002, base station is terminal distribution fixed resource, the first data feedback channel at kth frame, preferably, all right notification terminal assignment period AP;
Step S1004, base station sends fixed resource assignment messages at m frame to terminal, wherein, fixed resource assignment messages goes batch operation in order to instruction to fixed resource, and carry the second data feedback channel (the second data feedback channel here also can be called feedback channel, and the reception condition being exclusively used in the fixed resource assignment messages that terminal sends at m frame base station is fed back) of promising terminal distribution; Wherein, the second data feedback channel is different from the first data feedback channel, k and m is integer, and m is more than or equal to k.Preferably, m here can equal k+N*AP.
Follow-up, if terminal receives the fixed resource assignment messages at m frame, be the fixed resource that it distributes by not re-using kth frame.
Preferably, base station retains the first feedback channel at m frame, does not reallocate to the first feedback channel; The first feedback channel is distributed at (m+p) frame in base station, and wherein p is positive integer; Base station before (m+p) frame or (m+p) frame determine described terminal successfully receive m frame send described signaling.
The flow process of Figure 10 is further illustrated below in conjunction with embodiment 9.
Embodiment 9
Base station is terminal MS-A allocation of downlink fixed resource PA1 at kth frame by fixed resource assignment messages, and assignment period is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
Suppose at (k+8) frame, base station is that MS-A goes to distribute fixed resource PA1 and HF2 by fixed resource assignment messages, and MAP feedback channel HF2 is different from the feedback channel HF1 that kth frame is MS-A distribution.
If base station detects ACK or nack message on the data feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+8) frame can be thought in base station, if base station can't detect any content (NULL Detection) on the MAP feedback channel HF2 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+8) frame can be thought in base station, and base station can resend this information in subsequent frame or subframe.
It may be noted that, MAP feedback channel and the sequential relationship of fixed resource assignment messages depend on the different of specific implementation can different setting, do not require kth frame send to terminal fixed resource assignment messages (going Resources allocation) must kth frame by terminal by this fixed resource assignment messages indicate MAP feedback channel feeding back ACK or nack message to base station, such as MAP feedback channel can be positioned at (k+1) frame, or (k+2) frame etc.
Preferably, at (k+8) frame, base station can retain data feedback channel HF1, HF1 is not reallocated, following problems can be solved like this: at (k+8) frame, MS-A successfully decodes fixed resource assignment messages and continue usage data feedback channel HF1, but this feedback channel to be distributed to other terminal at (k+8) frame and used and situation that feedback information collision occurs by base station.
Preferably, base station could distribute data feedback channel HF1 after the fixed resource assignment messages determined successfully to decode MS-A (k+8) frame sends.Such as base station before (k+8+p) frame or (k+8+p) frame determine MS-A successfully decode (k+8) frame send fixed resource assignment messages, then base station can distribute data feedback channel HF1 after (k+8+p) frame or (k+8+p) frame.
It may be noted that fixed resource that the present embodiment describes goes batch operation process to be equally applicable to base station at (k+T) frame is that MS-A is fixed resource and goes batch operation, and wherein T is 0 or positive integer, does not repeat one by one at this.
By this embodiment, achieve fixed resource and go batch operation, and go the data feedback channel that distributes in assigning process different from the data feedback channel distributed in fixed resource assigning process due to fixed resource, the false judgment causing base station owing to using same data feedback channel to carry out feeding back can be avoided.
Figure 11 is the flow chart of the fixed resource allocation methods of the embodiment of the present invention, mainly comprises following process:
Step S1102, base station is terminal distribution fixed resource at kth frame, preferably, all right notification terminal assignment period AP;
Step S1104, base station sends fixed resource assignment messages at m frame to terminal, wherein, fixed resource assignment messages removes fixed resource described in batch operation or code reassignment in order to instruction to described fixed resource, k and m is integer, and m is greater than k, preferably, here m is not equal to (k+N*AP), and N is positive integer.
The flow process of Figure 11 is further illustrated below in conjunction with embodiment 10 ~ 11.
Embodiment 10
Base station is terminal MS-A allocation of downlink fixed resource PA1 at kth frame by fixed resource assignment messages, and assignment period (AP) is 4, after MS-A successfully receives this message, utilize this message to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1, wherein every frame is made up of 8 subframes usually.
At (k+8) frame, base station is not that MS-A redistributes fixed resource PA2 by fixed resource assignment messages, and wherein, the subframe at the part or all of resource place of described fixed resource PA1 and PA2, the relative position in affiliated frame is identical.
Embodiment 11
Base station is terminal MS-A allocation of downlink fixed resource PA1 at kth frame by fixed resource assignment messages, and assignment period (AP) is 4, after MS-A successfully receives this message, this message is utilized to be the data that its data feedback channel HF1 distributed feeds back on kth frame, whether MS-A successfully decodes on PA1.
At (k+8) frame, base station is not that MS-A goes to distribute fixed resource PA1 by fixed resource assignment messages.
Figure 12 is the flow chart of the fixed resource allocation methods of the embodiment of the present invention, mainly comprises following process:
Step S1202, base station is terminal distribution fixed resource, the first data feedback channel at kth frame;
Step S1204, described base station sends fixed resource assignment messages at m frame to described terminal, and wherein, described fixed resource assignment messages goes batch operation in order to instruction to described fixed resource, k and m is integer, and m is more than or equal to k;
Step S1206, if described base station receives on described first data feedback channel " successfully receiving " or " taking defeat " information, then described base station thinks that described terminal successfully receives the described fixed resource assignment messages of described m frame transmission, otherwise described base station thinks that described terminal does not successfully receive the described fixed resource assignment messages of described m frame transmission.
The flow process of Figure 12 is further illustrated below in conjunction with embodiment 12.
Embodiment 12
Base station is terminal MS-A allocation of downlink fixed resource PA1 at kth frame by fixed resource assignment messages, and assignment period is 4, after MS-A successfully receives this message, utilize this message to be the data that its data feedback channel HF1 distributed feeds back whether MS-A successfully decodes on PA1 on (k+4*N) frame, wherein N is 0 or positive integer.
Suppose at (k+7) frame, base station is that MS-A goes to distribute fixed resource PA1 by fixed resource assignment messages.
If base station detects ACK or nack message on the data feedback channel HF1 of (k+8) frame, then the fixed resource assignment messages that MS-A successfully receives base station and sends at (k+7) frame can be thought in base station, then in subsequent frames, can reallocate to data feedback channel HF1 in base station; If base station can't detect any content (NULL Detection) on the data feedback channel HF1 of (k+8) frame, then the fixed resource assignment messages that MS-A does not receive base station and sends at (k+7) frame can be thought in base station, base station can resend this information in subsequent frame or subframe, until base station confirms that MS-A just can reallocate to data feedback channel HF1 after successfully receiving fixed resource assignment messages (going to distribute).。
It may be noted that fixed resource that the present embodiment describes goes batch operation process to be equally applicable to base station at (k+T) frame is that MS-A is fixed resource and goes batch operation, and wherein T is 0 or positive integer, does not repeat one by one at this.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (29)
1. a fixed resource allocation methods, is characterized in that, comprising:
Base station sends instruction at kth frame to terminal, is described terminal distribution first fixed resource, the first data feedback channel;
Described base station sends instruction at m frame to described terminal, is described terminal distribution second fixed resource, the second data feedback channel;
Wherein, described second data feedback channel is different from described first data feedback channel, k and m is integer, and m is greater than k;
Described second data feedback channel is different from described first data feedback channel, refers to: the sequence that these two feedback channels send is different, or shared physical resource and sent sequence are all not identical.
2. method according to claim 1, is characterized in that, described method also comprises:
Terminal fixed resource assignment period described in instruction notification is passed through at described kth frame in described base station.
3. method according to claim 2, is characterized in that, m=k+N*AP, and wherein, N is positive integer, and AP is described fixed resource assignment period.
4. method according to claim 1, is characterized in that, described first fixed resource and/or described second fixed resource, lay respectively in one or more subframe.
5. method according to any one of claim 1 to 4, is characterized in that, the subframe at the part or all of resource place of described first fixed resource and described second fixed resource, the relative position in affiliated frame is identical.
6. method according to claim 5, is characterized in that, the subframe at the original position place of described first fixed resource and described second fixed resource, the relative position in affiliated frame is identical.
7. method according to claim 5, is characterized in that, the subframe at the end position place of described first fixed resource and described second fixed resource, the relative position in affiliated frame is identical.
8. method according to claim 5, is characterized in that, described method also comprises:
Described base station is after described m frame distributes described second fixed resource, and described terminal uses described second fixed resource, does not re-use described first fixed resource.
9. the method any one of Claims 1-4 or according to any one of 6 to 8, is characterized in that, described instruction is fixed resource assignment messages.
10. method according to claim 1, is characterized in that, described method also comprises:
Described base station retains described first data feedback channel at described m frame, does not reallocate to described first data feedback channel.
11. methods according to claim 10, is characterized in that, described method also comprises:
Described first data feedback channel is distributed at (m+p) frame in described base station, and wherein p is positive integer.
12. methods according to claim 11, is characterized in that, described method also comprises:
Described base station before described (m+p) frame or described (m+p) frame determine described terminal successfully receive m frame send signaling.
13. 1 kinds of fixed resource allocation methods, is characterized in that, comprising:
Base station sends fixed resource assignment messages at kth frame to terminal, is described terminal distribution fixed resource, the first data feedback channel;
Described base station sends fixed resource assignment messages at m frame to described terminal, and wherein, described fixed resource assignment messages goes batch operation in order to instruction to described fixed resource, and is described terminal distribution second data feedback channel;
Wherein, described second data feedback channel is different from described first data feedback channel, k and m is integer, and m is greater than k;
Described second data feedback channel is different from described first data feedback channel, refers to: the sequence that these two feedback channels send is different, or shared physical resource and sent sequence are all not identical.
14. methods according to claim 13, is characterized in that, described method also comprises:
Terminal fixed resource assignment period described in instruction notification is passed through at described kth frame in described base station.
15. methods according to claim 14, is characterized in that, m=k+N*AP, and wherein, N is positive integer, and AP is described fixed resource assignment period.
16. methods according to claim 13, is characterized in that, described method also comprises:
Described base station retains described first data feedback channel at described m frame, does not reallocate to described first data feedback channel.
17. methods according to claim 16, is characterized in that, described method also comprises:
Described first data feedback channel is distributed at (m+p) frame in described base station, and wherein p is positive integer.
18. methods according to claim 17, is characterized in that, described method also comprises:
Described base station before described (m+p) frame or described (m+p) frame determine described terminal successfully receive m frame send signaling.
19. methods according to claim 14, is characterized in that, described method also comprises:
Described instruction is fixed resource assignment messages.
20. 1 kinds of fixed resource allocation methods, is characterized in that, comprising:
Base station is terminal distribution first fixed resource, fixed resource assignment period at kth frame by instruction; Also distribute the first data feedback channel;
Described base station is described terminal distribution second fixed resource at m frame; Also distribute the second data feedback channel;
Wherein, k and m is integer, and m is greater than k and m is not equal to (k+N*AP), and wherein, N is positive integer, and AP is described fixed resource assignment period;
Wherein, described second data feedback channel is different from described first data feedback channel;
Described second data feedback channel is different from described first data feedback channel, refers to: the sequence that these two feedback channels send is different, or shared physical resource and sent sequence are all not identical.
21. methods according to claim 20, is characterized in that, described first fixed resource and/or described second fixed resource, lay respectively in one or more subframe.
22. methods according to any one of claim 20 to 21, it is characterized in that, the subframe at the part or all of resource place of described first fixed resource and described second fixed resource, the relative position in affiliated frame is identical.
23. methods according to claim 22, is characterized in that, the subframe at the original position place of described first fixed resource and described second fixed resource, the relative position in affiliated frame is identical.
24. methods according to claim 22, is characterized in that, the subframe at the end position place of described first fixed resource and described second fixed resource, the relative position in affiliated frame is identical.
25. methods according to claim 22, is characterized in that, the distribution of described fixed resource is carried out by fixed resource assignment messages in described base station.
26. methods according to claim 20, is characterized in that, described method also comprises:
Described instruction is fixed resource assignment messages.
27. 1 kinds of fixed resource allocation methods, is characterized in that, comprising:
Base station sends fixed resource assignment messages at kth frame, is terminal distribution fixed resource, fixed resource assignment period; Also distribute the first data feedback channel; Also distribute the second data feedback channel;
Described base station can not send fixed resource assignment messages at m frame to described terminal, and wherein, described fixed resource assignment messages goes batch operation in order to instruction to described fixed resource;
Wherein, k and m is integer, and m is greater than k and m is not equal to (k+N*AP), and wherein, N is positive integer, and AP is described fixed resource assignment period;
Wherein, described second data feedback channel is different from described first data feedback channel;
Described second data feedback channel is different from described first data feedback channel, refers to: the sequence that these two feedback channels send is different, or shared physical resource and sent sequence are all not identical.
28. 1 kinds of fixed resource allocation methods, is characterized in that, comprising:
Base station sends fixed resource assignment messages at kth frame to terminal, is described terminal distribution fixed resource, the first data feedback channel; Also distribute the second data feedback channel;
Described base station sends fixed resource assignment messages at m frame to described terminal, and wherein, described fixed resource assignment messages goes batch operation in order to instruction to described fixed resource, k and m is integer, and m is more than or equal to k;
If described base station receives on described first data feedback channel " successfully receiving " or " taking defeat " information, then described base station thinks that described terminal successfully receives the described fixed resource assignment messages of described m frame transmission, otherwise described base station thinks that described terminal does not successfully receive the described fixed resource assignment messages of described m frame transmission;
Wherein, described second data feedback channel is different from described first data feedback channel;
Described second data feedback channel is different from described first data feedback channel, refers to: the sequence that these two feedback channels send is different, or shared physical resource and sent sequence are all not identical.
29. methods according to claim 28, is characterized in that, described method also comprises:
Reallocate to described first data feedback channel after confirming that described terminal successfully receives the described fixed resource assignment messages of described m frame transmission in described base station.
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| KR101457121B1 (en) * | 2007-11-26 | 2014-11-03 | 삼성전자주식회사 | Apparatus and method for self recovarable circuit mode resource allocation in broadband wireless communication system |
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| CN101212312A (en) * | 2006-12-29 | 2008-07-02 | 华为技术有限公司 | Method, system, terminal and device for releasing persistently assigned resources in reverse direction |
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