CN101064709A - device and method for reducing bit expense of indicating channel resource - Google Patents
device and method for reducing bit expense of indicating channel resource Download PDFInfo
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- CN101064709A CN101064709A CN 200610080003 CN200610080003A CN101064709A CN 101064709 A CN101064709 A CN 101064709A CN 200610080003 CN200610080003 CN 200610080003 CN 200610080003 A CN200610080003 A CN 200610080003A CN 101064709 A CN101064709 A CN 101064709A
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Abstract
The invention discloses a method of reducing bit spending of indication channel resource that includes following steps: network distributes resource block for user equipment; network sequences user to generate table which marks user based on sequence of user in resource block, and ensure the number of user index, generate vector which includes index of user; network maps the vector which includes index of user to corresponding bit of indication resource distribution information sent in control channel; at last network generates integral control command and sends it to user equipment. Adopting the method, network can schedule part of resource or all resource to user in current sub frame, comparing with traditional method, the bit spending of sending control command is decreased.
Description
Technical field
The present invention relates to wireless communication system, relate to a kind of equipment and method that in the control signaling of wireless communication system, reduces the overhead bit of indicating channel resource in particular.
Background technology
Now, 3GPP standardization body has set about beginning its existing system standard is carried out long-term evolution (LTE, Long Term Evolution).In the middle of numerous physical layer transmission technology, based on OFDM (OFDM, Orthogonal Frequency Division Multiplexing) downlink transfer technology and be the focus of research based on the uplink technology of single carrier frequency division multiplexing (SCFDMA, Single CarrierFrequency Division Multiple Addressing).Be a kind of multi-carrier modulation communication technology on the OFDM technological essence, its basic principle is the data flow of a two-forty to be decomposed into several rate data streams transmit simultaneously on one group of mutually orthogonal subcarrier.The OFDM technology is because its multicarrier character has performance advantage aspect a lot.It on the SCFDMA technological essence a kind of single carrier transmission technology, its signal peak-to-average is than (PAPR, Peakto Average Power Ratio) lower, thereby the power amplifier of portable terminal can be with higher efficient work, enlarge the coverage of sub-district, by adding Cyclic Prefix (Cyclic Prefix) and frequency domain equalization, it is lower that it handles complexity simultaneously.
According to existing discussion result about LTE, be LTE system descending frame structure as shown in Figure 1, Radio Resource in the LTE system is meant time and the frequency resource that system or subscriber equipment can take, can (101-103) do differentiation with radio frames (radio frame) for unit, the time span of radio frames is identical with the time span of the radio frames of WCDMA system, and promptly its time length is 10ms; Each frame is subdivided into a plurality of subframes (sub-frame) (104-107), and present hypothesis is that each radio frames comprises 20 subframes, and the time span of subframe is 0.5ms; Each subframe comprises a plurality of OFDM symbols again, and according to present hypothesis, the time span of effective OFDM symbol is about 66.7 μ s in the LTE system.The time span of the CP of OFDM symbol can have two kinds, promptly the time span of short CP is approximately 4.8 μ s, the about 16.7 μ s of the time span of long CP, long CP subframe is used for many Cell Broadcast CB/multicasts and the very large situation of radius of society, short CP subframe (108) comprises 7 OFDM symbols, and long CP subframe (109) comprises 6 OFDM symbols.The minimum transfer time interval, (TTI) just equaled the time span of subframe.
Fig. 2 is a LTE system uplink frame structure, and with the downlink frame similar, the time span of its radio frames (201,202,203) is all 10ms mutually with WCDMA; Each frame is subdivided into a plurality of subframes (204-207), and present hypothesis is that each radio frames comprises 20 subframes, and the time span of subframe is 0.5ms; Each subframe comprises a plurality of SCFDMA symbols again, and according to present hypothesis, the SCFDMA symbol in the LTE system is divided into two kinds, comprise two short symbols (214 in the subframe, 215), its, length was about 33.33 μ s effective time, was called short block (Short block) in the current discussion; Simultaneously comprise 6 long symbols (208～213) in a subframe, its, length was 66.67 μ s effective time, was called long piece (Long block) in the current discussion.Short symbol is used to transmit the reference information of coherent demodulation, also can be used for transmit ascending data and control information simultaneously; Long symbol is used for transmit ascending data and control information.The minimum transfer time interval, (TTI) just equaled the time span of subframe.
In current LTE discusses, the mode that has two kinds of basic channel resources to divide.First kind is local formula transmission channel, promptly some continuous subcarriers is divided into a channel as Resource Block, and this method helps utilizing multi-user diversity, thereby higher throughput of system is provided.Another kind is the distributed transmission channel, the running time-frequency resource of promptly distributing to some users be distributed to whole with certain rules or partial-band in, thereby the gain of frequency diversity is bigger.These two kinds of channel distribution modes respectively have superiority and replenish mutually, can be applied to simultaneously in the same subframe, thereby in a subframe some users be obtained multi-user diversity gain, and the user obtains frequency diversity gain to other.
The scheduling of user data and transmission are to be base unit with the Resource Block.In current discussion, the notion of Physical Resource Block (Physical resourceblock) and virtual resource blocks (Virtual resource block) has been proposed about LTE down channel resources dividing mode.Physical Resource Block comprises M continuous sub-carriers on frequency domain, comprise N continuous OFDM symbol simultaneously in time.Virtual resource blocks is abstract to channel resource on Physical Resource Block, and virtual resource blocks is divided into distributed virtual resource block and local formula virtual resource blocks.Distributed virtual resource block is corresponding to the resource of distributed transmission channel, and local formula virtual resource blocks is corresponding to the resource of local formula transmission channel.
In current discussion, adopted the notion of Resource Unit (Resource unit) about LTE uplink channel resources dividing mode.Resource Unit is further divided into local formula Resource Unit (LocalizedRU) and distributed resource units (Distributed RU).Local formula Resource Unit comprises a continuous M subcarrier on frequency domain, comprise N long SCFDMA symbol simultaneously in time; Distributed resource units comprises the subcarrier that M frequency interval equates on frequency domain, comprise N long SCFDMA symbol simultaneously in time.It should be noted that in current discussion and be not precluded within the short SCFDMA symbol and transmit data, so the actual running time-frequency resource that takies of Resource Unit can comprise the resource in the short SCFDMA symbol.
For the convenience of narrating, the unified in the following description base unit that uses Resource Block to represent the up-downgoing dispatch channel resource of the present invention.Specifically, for down direction, Resource Block is corresponding to local formula virtual resource blocks or distributed virtual resource block; For the up direction Resource Block corresponding to local formula Resource Unit or distributed resource units.
Fig. 3 is a kind of mode of channel resource of network indication distribution, and control channel comprises two classes at least, sends the user's of scheduling number in Common Control Channel; In shared control channel, send information such as the user ID comprise scheduling and resource allocation.In this method network allocation give user's Resource Block both can be continuous also can be discontinuous.
1) network sends each user's that current subframe need dispatch sign (301,302,303), thereby obtains comprising the table about user ID of the individual element of M (M is the number of users of current subframe scheduling), and each user ID is represented with its index in table;
2) network sends the index (311,312,313) of the user ID of its carrying successively to each Resource Block, the situation that indexed resource distributes, thus obtain the table of N element, wherein N is the sum of Resource Block in the system;
3) network is mapped as fixed number to the user ID index of each Resource Block
Bit, here
Round in the expression, thereby total bit number that the indication resource allocation needs in the downlink signaling is
The method of the described indexed resource assignment information of Fig. 3 can only be used for system all Resource Block in the current subframe are all distributed to the situation of one or more subscriber equipment, yet several factors can cause system only to distribute a part in all Resource Block in certain subframe in the LTE system:
1) when the control signaling is divided into a plurality of groups of transmissions, the Resource Block that every group of subscriber equipment takies all will be a subclass of system's total resources piece, at this moment from every group of angle of controlling signaling, be not that all Resource Block have all been distributed to this group user, therefore resource allocation methods above-mentioned can not be worked;
2) in current discussion about LTE control signaling, the duration of resource allocation (Duration) is the mode of a very important reduction signaling consumption.When adopting this mode, the resource of distributing to certain subscriber equipment in subframe of system is effective in a plurality of subframes thereafter, this means that simultaneously system is when sub-frame allocation resource thereafter, just distribute these Resource Block resource in addition, the part in the distribution system total resources piece just, therefore, resource allocation methods above-mentioned can not be worked;
3) owing to adopt channeling, thus the reliability that raising information is transmitted, such as the problem that solves cell boarder etc., a part of Resource Block in the system does not distribute in current subframe because of channeling, and method shown in Figure 3 can not be worked.
For method shown in Figure 3, because it is mapped as fixed number to the user ID index of each Resource Block
Bit, when user's number of current subframe scheduling was not 2 integral number power, its user ID index must be used
Bit represent that so that information exists is redundant, the utilization of signaling bit is not very effective.
Summary of the invention
The present invention is directed to the problem that existing method exists, propose a kind of equipment and method that in the control signaling of wireless communication system, reduces the overhead bit of indicating channel resource.
According to an aspect of of the present present invention, a kind of network generates the method for control signaling, comprises the steps:
A) network is each user equipment allocation Resource Block;
B) order that in Resource Block, occurs according to the user of network, thus user's ordering is generated the table of user ID, and determine the number of the user index that each Resource Block is possible, network generates the vector of the user's who comprises each resource block assignments index simultaneously;
C) network is the bit block of the DUAL PROBLEMS OF VECTOR MAPPING of the user index that comprises each Resource Block for the indexed resource assignment information that sends in control channel;
D) network generates complete control signaling and sends to subscriber equipment.
According to another aspect of the present invention, a kind of subscriber equipment receives the method for control signaling, comprising:
A) subscriber equipment receives the control signaling, judges that whether network is that it sends control signaling and does corresponding processing;
B) subscriber equipment converts the bit block that comprises resource block assignments information in the control signaling to comprise resource block assignments user index vector;
C) the subscriber equipment analysis-by-synthesis comprises the table of the vector sum user ID composition of resource block assignments information, obtains network allocation and gives its Resource Block;
D) subscriber equipment sends or receiving subscriber data on the Resource Block of network allocation.According to another aspect of the present invention, a kind of network generates the equipment of control signaling, comprising:
A) resource block assignments module, each Resource Block of information distribution such as CQI that is used for network based user is to the user;
B) generate user ID table and the module of representing the vector of resource block assignments user index, be used for the order that network occurs at Resource Block according to the user, to the table of user's ordering and generation user ID, network generates the vector of the user's who comprises each resource block assignments index simultaneously;
C) comprise the bit block generation module of resource block assignments information, be used for network based module b) the vector that comprises resource block assignments information generate the bit block that comprises resource block assignments information;
According to another aspect of the present invention, a kind of equipment of subscriber equipment processing controls signaling comprises:
A) system modular converter is used for subscriber equipment the bit block that the control signaling comprises resource block assignments information is converted to the numerical value of multi-system as binary numerical value, thereby obtains comprising the vector of resource block assignments information;
B) resource block assignments information vector parsing module is used for table analysis that subscriber equipment forms in conjunction with the user ID of control signaling and obtains network allocation and give its Resource Block.
The method of the channel resource that the indication of adopting the present invention to propose distributes, can network enabled in current subframe, only dispatch in the total resources piece a part of Resource Block or all Resource Block give the user, and the overhead bit when sending control signaling is lower, help making full use of system resource, guarantee the availability and the reliability of system.
Description of drawings
Fig. 1 is the downlink frame structure of LTE system;
Fig. 2 is the uplink frame structure of LTE system;
Fig. 3 is a kind of method of channel resource of network indication distribution;
Fig. 4 is the equipment drawing of network processes control signaling;
Fig. 5 is the equipment drawing of subscriber equipment processing controls signaling;
Fig. 6 is the schematic diagram of embodiment one;
Fig. 7 is the schematic diagram of embodiment two;
Fig. 8 is an example of base station transmitter hardware block diagram;
Fig. 9 is an example of subscriber equipment receiver hardware block diagram.
Embodiment
The present invention proposes a kind of equipment and method that reduces the overhead bit of indicating channel resource in the control signaling of wireless communication system, comprises the steps:
The operation of network:
A) network is each user equipment allocation Resource Block;
B) order that in Resource Block, occurs according to the user of network, thus user's ordering is generated the table of user ID, and determine the number of the user index that each Resource Block is possible, network generates the vector of the user's who comprises each resource block assignments index simultaneously;
C) network is the bit block of the DUAL PROBLEMS OF VECTOR MAPPING of the user index that comprises each Resource Block for the indexed resource assignment information that sends in control channel.
D) network generates complete control signaling and sends to subscriber equipment.
Method proposed by the invention both can be used for the network assigned downlink resource, can be used for the network assigned ascending resource again; The method that the present invention simultaneously proposes both can be used for the resource of the local formula channel of network assigned, can be used for the resource of network assigned distributed channel again.
In the step a) of the present invention, network is given each user resource block assignments based on user's channel quality indication information such as (CQI).
Step b) among the present invention, the order that network occurs in Resource Block according to the user, to user ordering and generate the table of the user ID that comprises M element in order, M the user that supposed current subframe scheduling here, while network generation comprises the vector of each resource block assignments user ID index.A kind of method that defines user index is that current subframe is not made the Resource Block manipulative indexing 0 that distributes, and the user's of M current subframe scheduling index is 1～M.It should be noted that the order that network based user occurs in each Resource Block sorts to user ID, this has determined the number of possible value of each element of resource block assignments information vector accordingly.
In the step b) of the present invention, a kind of method to user's ordering is that network is handled first Resource Block successively to N Resource Block, and N is the sum of Resource Block in the system here, determines user's order in the order of Resource Block appearance according to the user.Another method to user's ordering is that network is handled N Resource Block successively to first Resource Block, determines user's order in the order of Resource Block appearance according to the user.Network also can be determined user's order according to other rule.The convenience of part below the present invention in order to describe supposed the first method above the network using, and promptly network sorts to the user from first Resource Block to N Resource Block according to the order that the user occurs.Here the description of this invention is equally applicable to other methods to user's ordering.
In the step b) of the present invention, according to the method that above-mentioned user ID table generates, for the 1st Resource Block, it only may be distributed to first user or not distribute, and possible user ID index is 1 and 0, shared two kinds of possibilities; For the 2nd Resource Block, it only may distribute to second user, and perhaps first user does not perhaps distribute, and possible user index is 2,1 and 0, shared three kinds of possibilities; The rest may be inferred; For k Resource Block, k is less than M, and it may distribute to first some in k the user, does not perhaps distribute, and its index range is 0～k, total k+1 kind possibility; To N Resource Block, N is the number of Resource Block in the system for M, and they may distribute to first some in M the user, perhaps do not distribute, and its index range is 0～M, has M+1 kind possibility.
Step c) of the present invention, a kind of processing method are to be each element map in the resource block assignments information vector bit of respective number.According to the analysis in the step b), according to the method that above-mentioned user ID table generates, the 1st the possible user ID index of Resource Block is 1 and 0, and shared two kinds of possibilities are so can represent with 1 bit; The 2nd user index that Resource Block is possible is 2,1 and 0, and shared three kinds of possibilities are so need represent with 2 bits; The rest may be inferred; For k Resource Block, k is less than M, and its index range is 0～k, but shared k+1 kind possibility, so need to use
Individual bit represents, wherein
Round in the representative; To N Resource Block, N is the sum of Resource Block in the system for M, and its index range is 0～M, and shared M+1 kind possibility is so need usefulness
Individual bit is represented; The bit of last comprehensive above-mentioned each resource block mapping obtains representing the bit block of resource block assignments information in the current subframe, and its total number of bits that needs is
Step c) of the present invention, another processing method is based on the analysis identical with first method, the possible index that is first Resource Block only has two kinds, the possible index of the individual Resource Block of k (k is less than M) only has the k+1 kind, and M the possible index to the individual Resource Block of N (N is the number of Resource Block in the system) has the M+1 kind.The resource block assignments information vector that obtains like this can be used as a special numerical value and handles.A kind of processing mode is the lowest order (1st) of the element of first Resource Block correspondence of hypothesis for this number, and the element of N Resource Block correspondence is the highest order (N position) of this number.Primary like this weights are 1; Deputy weights are 2; The weights of m position (m is smaller or equal to M) be m! , i.e. the factorial of m; The weights of M position be M! The weights of M+k (k is greater than 1, and k is smaller or equal to N-M) position are M+1)
k, the weights of N position are (M+1)
N-MThis special numerical value is converted to binary numerical value, thereby obtain representing the binary bits piece of resource block assignments information, its total number of bits that needs is | log
2(M+1)
N-M+1) |.Another processing mode is the highest order (N position) of the element of first Resource Block correspondence of hypothesis for this number, and the element of N Resource Block correspondence is the lowest order (first) of this number.Primary like this weights are 1; Deputy weights are M+1; The weights of m position (m is smaller or equal to N-M+2) are (M+1)
M-1The weights of N-M+ 2 position are (M+1)
N-M+1The weights of N-M+ 3 position are (M+1)
N-M+1M, the weights of N-M+ 3+k position are (M+1)
N-M+1M (M-1) ... (M-k), the weights of N position are (M+1)
N-M+1M (M-1) ... (M-k) ... 3.This special numerical value is converted to binary numerical value, thereby obtains representing the binary bits piece of resource block assignments information, the total number of bits position that it needs | log
2((M+1)
N-M+1) |.
Network synthesis comprises the table of user ID and comprises the bit block of resource block assignments information, and other control information generates complete control signaling.
The operation of subscriber equipment:
A) subscriber equipment receives the control signaling, judges that whether network is that it sends control signaling and does corresponding processing;
B) subscriber equipment converts the bit block that comprises resource block assignments information in the control signaling to comprise resource block assignments user index vector;
C) the subscriber equipment analysis-by-synthesis comprises the table of the vector sum user ID composition of resource block assignments information, obtains network allocation and gives its Resource Block;
D) subscriber equipment sends or receiving subscriber data on the Resource Block of network allocation.
In the step a) of the present invention, subscriber equipment is at first checked its user ID whether in the user ID table of control signaling, if in this table its user ID is arranged, this user determines the index of its user ID, and continues the processing controls signaling; Otherwise the user finishes the processing of current subframe to this control signaling.
Step b) of the present invention, a kind of processing method are the index that the bit block piecemeal of expression resource block assignments information is mapped as the user of resource block assignments.Because the user index of first Resource Block is mapped as 1 bit, first bit is mapped as the user's of first resource block assignments index; Because the user index of second Resource Block is mapped as 2 bits, latter two bit is mapped as the user's of second resource block assignments index; Because the user index of k (k is less than M) Resource Block is mapped as
Individual bit is ensuing
Individual bit is mapped as the user index of k Resource Block; Because M the user index to N Resource Block all is mapped as
So individual bit is handle at every turn
Individual bit is mapped as the user index of a Resource Block, thereby obtains the user's of each resource block assignments index.
Step b) of the present invention, another processing method are subscriber equipmenies the bit block of expression resource block assignments information is a special numerical value as binary number conversion, and each of this number represented the user's of a resource block assignments index; Subscriber equipment is handled the binary number comprise resource block assignments information according to each weights of this number and is obtained this numerical value, thereby obtains comprising the vector of resource block assignments user's index.
In the step c) of the present invention, subscriber equipment compares with the index of its sign and the user index of each Resource Block in the resource block assignments information vector, thereby judges which Resource Block network has distributed for it.
Fig. 4 is the equipment drawing that network of the present invention generates the control signaling.As shown in the figure, each Resource Block of information distribution such as CQI of network based user is to user (401); The order that in Resource Block, occurs according to the user of network then, to user's ordering and generate the table of user ID, network generates the vector (402) of the user's who comprises each resource block assignments index simultaneously; Network is the bit block (403) of the DUAL PROBLEMS OF VECTOR MAPPING of the user index that comprises each Resource Block in (402) for the indexed resource assignment information that sends in control channel; Network generates complete control signaling (404) then, comprises the bit block that comprises resource block assignments information that obtains in the user ID table that obtains in (402) and (403) in the signaling; Last network sends control signaling, and sends or receive data on corresponding resource blocks.
Fig. 5 is the equipment drawing of subscriber equipment processing controls signaling of the present invention.As shown in the figure, subscriber equipment receives the control signaling, at first checks its user ID whether in the user ID table of control signaling, if in this table its user ID is arranged, this user determines the index of its user ID, and continues the processing controls signaling; Otherwise the user finishes the processing (501) of current subframe to this control signaling.Then subscriber equipment is resolved the vector (502) that the bit block that comprises resource block assignments information in the control signaling obtains comprising the user index of resource block assignments; Subscriber equipment obtains the Resource Block (503) of network allocation to it according to the vector (502) that its user index analysis comprises the user index of each Resource Block then; End user's device parses obtains complete control signaling, and sends or receiving subscriber data on the Resource Block of network allocation.
Embodiment
This part has provided three embodiment of this invention, describes bit block how to handle and generate the indexed resource assignment information among the embodiment emphatically.Too tediously long for fear of the description that makes this patent, in the following description, omitted the detailed description of function that the public is known or device etc.
First embodiment:
In the present embodiment, suppose the user number of network, and on shared control channel, send the control signaling that comprises user ID and resource allocation information by the current subframe scheduling of transmission in the Common Control Channel.The supposing the system resource division is 12 Resource Block, and has supposed at current subframe scheduling 5 users, and its control bit that sends resource allocation information adds up to
Suppose that the available subscribers identification index is 1,2,3,4,5, index 0 is used to identify certain subframe and does not distribute in current subframe.
Be the schematic diagram that generates the resource allocation information bit in the present embodiment as shown in Figure 6.Each Resource Block of information distribution such as network based user's CQI (606～617) is to the user, and wherein Resource Block (606 and 610) does not distribute in current subframe; The order that network occurs in Resource Block (606～617) according to the user, user's ordering is also generated in order the table (601～605) of user ID, as shown in the figure, according to order from left to right, the user that Resource Block (607) distributes is first user (601), the user that Resource Block (608) distributes is second user (602), the user that Resource Block (611) distributes is third party (603), the user that Resource Block (613) distributes is the 4th user (604), and the user that Resource Block (615) distributes is the 5th user (605); User ID 1 (601) allocation index 1, user ID 2 (602) allocation index 2, the rest may be inferred, and current subframe is not made the Resource Block manipulative indexing 0 that distributes; The user of network based like this each resource block assignments generates resource block assignments information vector " 012103144533 " (618) with its index, the index of Resource Block among the figure (606) is 0, represent this Resource Block not distribute in current subframe, the index of Resource Block (607) is 1, represent this Resource Block to give first user in current sub-frame allocation, the index of Resource Block (608) is 2, represent this Resource Block to give second user in current sub-frame allocation, the index of Resource Block (609) is 1, represent this Resource Block also to distribute to first user in current subframe, the rest may be inferred; Vector (619) is the number of possible value of the index of each Resource Block; Then, this resource block assignments information vector (618) is converted to the binary bits piece of expression resource block assignments information, and the user index of Resource Block (606) is 0, and it is mapped as a bit 0; The user index of Resource Block (607) is 1, and it is mapped as two bits 0 and 1; The user index of Resource Block (608) is 2, and it is mapped as two bits 1 and 0; The user index of Resource Block (609) is 1, and it is mapped as three bits 0,0 and 1; The rest may be inferred, and comprehensively the mapped bits of each Resource Block obtains bit block " 00110001000011001100100101011011 " (620), thereby obtain representing the bit block (621) of resource block assignments information; Last network is launched current subframe scheduling in Common Control Channel user's number sends in shared control channel comprising the control signaling of user ID table (601～605) with resource allocation information (621).
Schematic diagram as shown in Figure 6 can be used to equally illustrate that subscriber equipment receives the process of control signaling.Subscriber equipment at first receiving common control channels obtains the number of users of network at current subframe scheduling, and the number of users of dispatching in the present embodiment is 5, thereby subscriber equipment can calculate indexed resource piece assignment information needs
The user is further according to the number of users of current subframe scheduling and the bit number of customer equipment identification, and the bit number of other control informations obtains total bit number of the control signaling in the shared control channel, thereby can be to its operation such as decode.Subscriber equipment is checked its sign whether in the user ID table (601～605) of control signaling, if do not have its user ID in the table, the user stops the processing of current subframe to the control signaling; If in the table its user ID is arranged, user's correspondence obtains the index of its user ID, supposes that its index is 3, and promptly this user is the third party (603) in the user ID table; The user is mapped as 32 bit resource block assignments information " 00110001000011001100100101011011 " (621) piecemeals in the control signaling user index of each resource block assignments then; The user index that first bit 0 mapping obtains first Resource Block is 0 (606), and promptly first Resource Block does not distribute in current subframe; The user index that latter two bit 0 and 1 mapping obtain second Resource Block is 1 (607), and promptly second resource block assignments given first user; The user index that latter two bit 1 and 0 mapping obtain the 3rd Resource Block is 2 (608), and promptly the 3rd resource block assignments given second user; The user index that three bits 0,0 in back and 1 mapping obtain the 4th Resource Block is 1 (609), and promptly the 4th Resource Block also distributed to first user; The user index that three bits 0,0 in back and 0 mapping obtain the 5th Resource Block is 0 (610), and promptly the 5th Resource Block do not distribute in current subframe; The user index that three bits 0,1 in back and 1 mapping obtain the 6th Resource Block is 3 (611), and promptly the 6th resource block assignments given third party, that is to say that subscriber equipment finds that this Resource Block distributes to it; Next the user continues to analyze the bit block of this resource block assignments information, and end user's equipment obtains comprising the vector " 012103144533 " (618) of the user index of resource block assignments, and obtains network allocation and give its Resource Block (611,616,617); Subscriber equipment is further analyzed other control signalings then, and finishes the transmission or the reception of data on Resource Block (611,616,617).
Fig. 8 is an example of network transmitter hardware block diagram of the present invention.As shown in the figure, network at first generates the control signaling (801) of the bit block that comprises indexed resource piece assignment information according to method of the present invention; Network equipment control signaling is carried out chnnel coding and interweave (802) then; Rate-matched (803); Next to signal indication QAM modulation (804), inputoutput multiplexer (809) then; Network carries out chnnel coding respectively and interweave (806) to the user's data (805) of current subframe scheduling; Carry out rate-matched (807) then; Next data-signal is carried out QAM modulation (808), and inputoutput multiplexer (809); Multiplexer (809) is multiplexed into control signaling and a plurality of user's data together, network is carried out OFDM modulation (IFFT) (810) to multiplexed signals then, add Cyclic Prefix (811), steering D/A conversion (812) is at last by radio frequency sending set (813) and antenna (814) emission.Network receives the signal that subscriber equipment sends by antenna (814) and radio-frequency transmitter (815) on the other hand; By mould/transformation of variables (816); Remove Cyclic Prefix (817); Carry out SCFDMA demodulation (818); Signal input demodulation multiplexer (819) after the demodulation; According to the control corresponding signaling, network carries out QAM demodulation (820) to the data-signal of demodulation multiplexer output, sends out rate-matched (821), and deinterleaving and channel decoding (822) obtain each user's data (823) at last; Network carries out QAM demodulation (824) to the uplink control signal of demodulation multiplexer output, and the information such as obtaining CQI that is correspondingly processed (825), and these upstream control signalings comprise CQI etc., are network scheduling user's foundations.
Fig. 9 is an example of subscriber equipment receiver hardware block diagram of the present invention.Subscriber equipment receives the signal of automatic network by antenna (912) and radio-frequency transmitter (913), through mould/transformation of variables (914), removes Cyclic Prefix (915), carries out OFDM demodulation (FFT) (916) and also imports demodulation multiplexer (917); Subscriber equipment is carried out QAM demodulation (918) to the control signal of demodulation multiplexer (917) output, separates rate-matched (919), and chnnel coding (920) is conciliate in deinterleaving, thereby obtains the L1/L2 control signaling (921) that network sends; The user receives and resolves L1/L2 control signaling (921) and judges whether scheduling resource of network, when network sends data to subscriber equipment, subscriber equipment is carried out QAM demodulation (922) to the data-signal that sends to it of demodulation multiplexer output, separate rate-matched (923), chnnel coding (924) is conciliate in deinterleaving, obtains the data (925) that network sends to it at last.On the other hand, when the network scheduling subscriber equipment sent data, subscriber equipment was carried out chnnel coding and modulation (904) to its data (903), rate-matched (905), and QAM modulates (906), imports its channel multiplexer (907); The upstream control signaling of subscriber equipment (901), CQI etc. carry out QAM modulation (902) through the corresponding back of handling, and also are input to channel multiplexer (907); Subscriber equipment is carried out SCFDMA modulation (908) to the signal after multiplexing, adds Cyclic Prefix (909), and mould/transformation of variables (910) is at last by radio frequency sending set (911) and antenna (912) emission.
Second embodiment:
In the present embodiment, suppose the user number of network, and on shared control channel, send the control signaling that comprises user ID and resource allocation information by the current subframe scheduling of transmission in the Common Control Channel.The supposing the system resource division is 12 Resource Block, supposes that the element of first Resource Block correspondence is as lowest order when the vector that comprises the user index of each resource block assignments is done the numerical value conversion, and the element of the 12nd Resource Block correspondence is as highest order.And supposed at current subframe scheduling 5 users, and its control bit that sends resource allocation information adds up to | log
2((5+1)
12-5+1) |=28 bits.Suppose that the available subscribers identification index is 1,2,3,4,5, index 0 is used to identify certain subframe and does not distribute in current subframe.
Be the schematic diagram that generates the resource allocation information bit in the present embodiment as shown in Figure 7.Each Resource Block of information distribution such as network based user's CQI (706～717) is to the user, and wherein Resource Block (706 and 710) does not distribute in current subframe; The order that network occurs in Resource Block (706～717) according to the user, user's ordering is also generated in order the table (701～705) of user ID, as shown in the figure, according to order from left to right, the user that Resource Block (707) distributes is first user (701), the user that Resource Block (708) distributes is second user (702), the user that Resource Block (711) distributes is third party (703), the user that Resource Block (713) distributes is the 4th user (704), and the user that Resource Block (715) distributes is the 5th user (705); User ID 1 (701) allocation index 1, user ID 2 (702) allocation index 2, the rest may be inferred, and current subframe is not made the Resource Block manipulative indexing 0 that distributes; The user of network based like this each resource block assignments generates resource block assignments information vector " 012103144533 " (718) with its index, the index of Resource Block among the figure (706) is 0, represent this Resource Block not distribute in current subframe, the index of Resource Block (707) is 1, represent this Resource Block to give first user in current sub-frame allocation, the index of Resource Block (708) is 2, represent this Resource Block to give second user in current sub-frame allocation, the index of Resource Block (709) is 1, represent this Resource Block also to distribute to first user in current subframe, the rest may be inferred; Vector (719) is the number of possible value of the index of each Resource Block; Next as a numerical value, the left side is first to network resource block assignments information vector (718), and the right side is the 12nd, and from left to right its everybody weights are respectively 1,2, , 4! , 5! , 6 * 5! , 6
2* 5! , 6
3* 5! , 6
4* 5! , 6
5* 5! , 6
6* 5! , 6
7* 5! Thereby network becomes whole transformation of variables 28 bits to obtain representing the bit block " 0111010101000110001101110110 " (720) of resource block assignments information; Last network is launched current subframe scheduling in Common Control Channel user's number sends in shared control channel comprising the control signaling of user ID table (701～705) with resource allocation information (720).
Schematic diagram as shown in Figure 7 can be used to equally illustrate that subscriber equipment receives the process of control signaling.Subscriber equipment at first receiving common control channels obtains the number of users of network at current subframe scheduling, and the number of users of dispatching in the present embodiment is 5, thereby subscriber equipment can calculate indexed resource piece assignment information needs | log
2((5+1)
12-5+1) |=28 bits, the user is further according to the number of users of current subframe scheduling and the bit number of customer equipment identification, and the bit number of other control informations obtains total bit number of the control signaling in the shared control channel, thereby can be to its operation such as decode.Subscriber equipment is checked its sign whether in the user ID table (701～705) of control signaling, if do not have its user ID in the table, the user stops the processing of current subframe to the control signaling; If in the table its user ID is arranged, user's correspondence obtains the index of its user ID, supposes that its index is 3, and promptly this user is the third party (703) in the user ID table; The user is transformed into 12 bit value to 28 bit resource block assignments information " 0111010101000110001101110110 " (720) in the control signaling as a binary number then, thereby obtain comprising the vector " 012103144533 " (718) of the user index of resource block assignments, and obtain network allocation and give its Resource Block (711,716,717); Subscriber equipment is further analyzed other control signalings then, and finishes the transmission or the reception of data on Resource Block (711,716,717).
The 3rd embodiment:
In the present embodiment, suppose that network sends the control signaling that comprises user ID and resource allocation information on shared control channel, but do not transmit user's number of current subframe scheduling by Common Control Channel.
Description to the inventive method among embodiment one and the embodiment two goes for this embodiment, and its difference is:
1) method of network generation control signaling is identical with embodiment two with embodiment one, and difference is network when sending control signaling, and only sends control informations such as user ID table and resource block assignments information in shared control channel; And the number of users of in Common Control Channel, not launching current subframe scheduling;
2) because subscriber equipment can not be known the number of users of current subframe scheduling in advance, also just can not know the bit number of control signaling in the shared control channel, this moment the subscriber equipment user's number that blind Detecting institute might dispatch of having to, according to the bit number of the control signaling of its correspondence decode shared control channel and verification.If according to certain may the user signaling bit number decoder and the verification of number correspondence pass through, subscriber equipment is thought the number of users of finding current subframe scheduling, and resolves the control signaling according to this number of users according to the method among embodiment one and the embodiment two.
Claims (38)
1. a network generates the method for controlling signaling, comprises the steps:
A) network is each user equipment allocation Resource Block;
B) order that in Resource Block, occurs according to the user of network, thus user's ordering is generated the table of user ID, and determine the number of the user index that each Resource Block is possible, network generates the vector of the user's who comprises each resource block assignments index simultaneously;
C) network is the bit block of the DUAL PROBLEMS OF VECTOR MAPPING of the user index that comprises each Resource Block for the indexed resource assignment information that sends in control channel;
D) network generates complete control signaling and sends to subscriber equipment.
2. method according to claim 1 is characterized in that described method both can be used for the network assigned downlink resource, can be used for the network assigned ascending resource again.
3. method according to claim 1 is characterized in that described method both can be used for the resource of the local formula channel of network assigned, can be used for the resource of network assigned distributed channel again.
4. method according to claim 1 is characterized in that in step a), and the foundation of distribution is the CQI information of subscriber equipment.
5. method according to claim 1 is characterized in that in step b), and the order that network occurs in Resource Block according to the user is to user ordering and generate the table of user ID in order.
6. method according to claim 5 is characterized in that network handles first Resource Block successively to N Resource Block, and the order that occurs at Resource Block according to the user is determined user's order, and N is the sum of Resource Block in the system here.
7. method according to claim 5 is characterized in that network handles N Resource Block successively to first Resource Block, and the order that occurs at Resource Block according to the user is determined user's order, and N is the sum of Resource Block in the system here.
8. method according to claim 1 is characterized in that in step b), and network is determined its index according to the order of user in the user ID table.
9. method according to claim 1 is characterized in that in step b), and the 1st Resource Block only distributed to first user or do not distributed, and possible user ID index is 1 and 0.
10. method according to claim 1 is characterized in that in step b), to k Resource Block, it may distribute to first some in k the user, does not perhaps distribute, and its index range is 0～k, wherein, k is less than M, and M is user's number of current subframe scheduling.
11. method according to claim 1 is characterized in that in step b), and is individual to N Resource Block to M, N is the number of Resource Block in the system, they may distribute to first some in M the user, perhaps do not distribute, and its index range is 0～M.
12. method according to claim 1 is characterized in that in step c), according to the number of the possible value of each element in the resource block assignments information vector it is mapped as the bit of respective number.
13. method according to claim 12 is characterized in that the 1st resource block mapping is 1 bit.
14. method according to claim 12 is characterized in that k resource block mapping is
Individual bit, wherein, k is less than M, and M is user's number of current subframe scheduling.
15. method according to claim 12 is characterized in that M to N Resource Block, they are mapped as respectively
Individual bit, wherein, N is the sum of Resource Block in the system.
16. method according to claim 12 is characterized in that described total bit number is
17. method according to claim 1 is characterized in that in step c), the vector that the user index of the Resource Block correspondence that network is generated is formed is converted to the binary bits piece as a special numerical value, obtains comprising the bit block of resource block assignments information.
18. method according to claim 17 is characterized in that the lowest order of the element of first Resource Block correspondence for this number, the element of N Resource Block correspondence is the highest order of this number, and wherein, N is the sum of Resource Block in the system.
19. method according to claim 18, the weights that it is characterized in that lowest order are 1.
20. method according to claim 18, the weights that it is characterized in that the m position be m! , wherein, m is smaller or equal to M, and M is user's number of current subframe scheduling.
21. method according to claim 18 is characterized in that the weights of M+k position are (M+1)
k, wherein, k is greater than 1, and k is smaller or equal to N-M.
22. method according to claim 18 is characterized in that needed total bit number is
23. method according to claim 17 is characterized in that the highest order of the element of first Resource Block correspondence for this number, the element of N Resource Block correspondence is the lowest order of this number, and wherein, N is the sum of Resource Block in the system.
24. according to claim 23, the weights that it is characterized in that lowest order are 1.
25. method according to claim 23 is characterized in that the weights of m position are (M+1)
M-1, wherein, m is smaller or equal to N-M+2.
26. method according to claim 23 is characterized in that the weights of N-M+3 position are (M+1)
N-M+1M.
27. method according to claim 23 is characterized in that the weights of N-M+3+k position are (M+1)
N-M+1M (M-1) ... (M-k).
28. method according to claim 23 is characterized in that needed total bit number is
29. a subscriber equipment receives the method for control signaling, comprises the steps:
A) subscriber equipment receives the control signaling, judges that whether network is that it sends control signaling and does corresponding processing;
B) subscriber equipment converts the bit block that comprises resource block assignments information in the control signaling to comprise resource block assignments user index vector.
C) the subscriber equipment analysis comprises the table of the vector sum user ID composition of resource block assignments information, obtains network allocation and gives its Resource Block;
D) subscriber equipment sends or receiving subscriber data on the Resource Block of network allocation.
30. method according to claim 29 is characterized in that in step b), subscriber equipment is mapped as the bit block piecemeal of expression resource block assignments information the user's of each resource block assignments index.
31. method according to claim 30 is characterized in that first bit is mapped as the user's of first resource block assignments index.
32. method according to claim 31 is characterized in that also comprising
Individual bit is mapped as the user index of k Resource Block, and wherein, k is less than M, and M is user's number of current subframe scheduling.
33. method according to claim 31 is characterized in that also comprising every
Individual bit is mapped as M the user index to N Resource Block successively.
34. method according to claim 30 is characterized in that the user index of comprehensive each mapping obtains the vector that comprise resource block assignments type information of network in current subframe.
35. method according to claim 29, it is characterized in that in step b), subscriber equipment is the bit block of expression resource block assignments information the numerical value of a special N position as binary number conversion, N is the number of Resource Block in the system, and each of this number represented the user's of a resource block assignments index.
36. method according to claim 29 is characterized in that in step c), subscriber equipment compares with the index of its sign and the user index of each Resource Block in the resource block assignments information vector, thereby judges which Resource Block network has distributed for it.
37. a network generates the equipment of control signaling, comprising:
A) resource block assignments module, each Resource Block of information distribution such as CQI that is used for network based user is to the user;
B) generate user ID table and the module of representing the vector of resource block assignments user index, be used for the order that network occurs at Resource Block according to the user, to the table of user's ordering and generation user ID, network generates the vector of the user's who comprises each resource block assignments index simultaneously;
C) comprise the bit block generation module of resource block assignments information, be used for network based module b) the vector that comprises resource block assignments information generate the bit block that comprises resource block assignments information.
38. the equipment of a subscriber equipment processing controls signaling comprises:
A) comprise the bit block parsing module of resource block assignments information, be used for subscriber equipment the bit block that the control signaling comprises resource block assignments information is resolved the vector that obtains comprising resource block assignments information;
B) resource block assignments information vector parsing module is used for table analysis that subscriber equipment forms in conjunction with the user ID of control signaling and obtains network allocation and give its Resource Block.
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|---|---|---|---|
| CN 200610080003 CN101064709A (en) | 2006-04-28 | 2006-04-28 | device and method for reducing bit expense of indicating channel resource |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610080003 CN101064709A (en) | 2006-04-28 | 2006-04-28 | device and method for reducing bit expense of indicating channel resource |
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| WO2010060382A1 (en) * | 2008-11-26 | 2010-06-03 | Huawei Technologies Co., Ltd. | Method and apparatus for partitioning a resource in a wireless communication system |
| CN101854726A (en) * | 2009-03-31 | 2010-10-06 | 株式会社Ntt都科摩 | Resource scheduling method and device for uplink transmission |
| CN101426265B (en) * | 2007-11-01 | 2011-02-23 | 中兴通讯股份有限公司 | Method for reducing downlink and uplink bandwidth resource overhead of IP speech service |
| CN109041237A (en) * | 2018-09-04 | 2018-12-18 | 重庆金美通信有限责任公司 | A kind of anti-interference resource allocation decisions method of LTE system transmission |
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| CN101426265B (en) * | 2007-11-01 | 2011-02-23 | 中兴通讯股份有限公司 | Method for reducing downlink and uplink bandwidth resource overhead of IP speech service |
| WO2010060382A1 (en) * | 2008-11-26 | 2010-06-03 | Huawei Technologies Co., Ltd. | Method and apparatus for partitioning a resource in a wireless communication system |
| CN102246551B (en) * | 2008-11-26 | 2014-09-03 | 华为技术有限公司 | Method and apparatus for partitioning a resource in a wireless communication system |
| CN101854726A (en) * | 2009-03-31 | 2010-10-06 | 株式会社Ntt都科摩 | Resource scheduling method and device for uplink transmission |
| CN101854726B (en) * | 2009-03-31 | 2014-06-18 | 株式会社Ntt都科摩 | Resource scheduling method and device for uplink transmission |
| CN109120391A (en) * | 2015-06-16 | 2019-01-01 | 华为技术有限公司 | The method, apparatus and equipment of scheduling of resource |
| CN109120391B (en) * | 2015-06-16 | 2020-03-10 | 华为技术有限公司 | Resource scheduling method, device and equipment |
| US10616895B2 (en) | 2015-06-16 | 2020-04-07 | Huawei Technologies Co., Ltd. | Resource scheduling method, apparatus, and device |
| US10645697B2 (en) | 2015-06-16 | 2020-05-05 | Huawei Technologies Co., Ltd. | Resource scheduling method, apparatus, and device |
| US10939435B2 (en) | 2015-06-16 | 2021-03-02 | Huawei Technologies Co., Ltd. | Resource scheduling method, apparatus, and device |
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| CN109041237A (en) * | 2018-09-04 | 2018-12-18 | 重庆金美通信有限责任公司 | A kind of anti-interference resource allocation decisions method of LTE system transmission |
| CN109041237B (en) * | 2018-09-04 | 2023-01-10 | 重庆金美通信有限责任公司 | LTE system transmission anti-interference resource allocation decision method |
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