CN101202578B - Method and system for transmitting data in quartered frequency-division multiplex system - Google Patents
Method and system for transmitting data in quartered frequency-division multiplex system Download PDFInfo
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- CN101202578B CN101202578B CN2006101651363A CN200610165136A CN101202578B CN 101202578 B CN101202578 B CN 101202578B CN 2006101651363 A CN2006101651363 A CN 2006101651363A CN 200610165136 A CN200610165136 A CN 200610165136A CN 101202578 B CN101202578 B CN 101202578B
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Abstract
The invention discloses a method for transmitting data in an orthogonal frequency division multiplexing system. The method includes: A, a base station distributes a dispatching frequency band to each user; B, the base station sends control information and data simultaneously to the user devices in the dispatching frequency band through the dispatching frequency band. The invention solves the problem of dispatching time delay existed in the prior art when an OFDM system transmits control information and data. The invention simultaneously discloses a system for transmitting data in the orthogonal frequency division multiplexing system.
Description
Technical field
The present invention relates to the mobile communication technology field, the method and system of transmission data in particularly a kind of orthogenic frequency-division multiplexing system.
Background technology
In Orthodoxy Frequency Division Multiplex (OFDM) GSM; All subscriber equipmenies (UE) shared system bandwidth uses shared channel to carry out the transmission of data, before each UE receives data; According to loaded information on the shared control channel of receiving, receive the also information of deal with data channel; Before each UE sends data, send dispatch request to network, the scheduling grant signaling according to the network side that receives sends judges whether to send data.
In the ofdm system; The control channel of down direction mainly comprises two types: one type is used for bearing downlink control signaling, is called the descending scheduling signaling channel, and the DSCH Downlink Shared Channel (DL-SCH) of promptly indicating UE to receive is gone up the relevant information of data carried by data; Like modulation system, redundancy versions, transmission diversity mode or the like; The control signaling relevant with downlink signaling is divided into 3 types, and first kind scheduling control signaling needs independent the transmission, monitors to make things convenient for all UE that are in linking status in the system; Second type and the 3rd type is controlled signaling is dedicated control signaling associated with the data, can send together with data; Another kind of down control channel is mainly used in the transmission scheduling grant, is called the uplink scheduling grant channel, promptly notifies the UE that is scheduled can use which ascending resource to carry out data and sends.
In the present ofdm system, exist the different UE that receive bandwidth ability, if the descending minimum reception bandwidth ability of UE is 15MHz; The bandwidth ability that minimum data is handled is 10MHz; Then when system bandwidth is 20MHz, exist in the system to receive the UE of bandwidth, so network side is according to the quantity of UE in the system bandwidth less than system bandwidth; Physical resource quantity that control channel need take or the like is configured in control channel on certain position of resource frequency band.
If network side is through control channel and data channel; Control information and data are sent together; Then all receive bandwidth all receive near the bandwidth control channel simultaneously less than the UE of system bandwidth signal in the ofdm system; And no longer the interior bandwidth of UE range of receiving can not get better utilization, has strengthened the load of network like this, has reduced the utilance of network.
If network side sends control information through control channel earlier, send data at next frame through data channel, UE is according to the control information of receiving; Judge that the data that receive if desired are no longer in self range of receiving; Then frequency hopping receives data, and the load that has so just alleviated network has improved the utilance of network; But control information and data are not sent at same frame, thereby have caused the scheduling time delay.
In addition, for broadband system, when the identical networking of each sub-district, if all UE dispatch on identical frequency band, then presence of intercell interference is inevitable very big, and power system capacity can be limited because disturb.
In sum, send control information and data in the ofdm system at present, can cause the scheduling time delay, strengthened the load of network, reduced the utilance of network, and be unfavorable for Inter-Cell Interference Coordination, excessive interference can reduce power system capacity.
Summary of the invention
The present invention provides the method and system of transmission data in a kind of orthogenic frequency-division multiplexing system, when sending control information with data in the ofdm system in order to exist in the solution prior art, has the problem of scheduling time delay.
The method of transmission data in a kind of orthogenic frequency-division multiplexing system, system bandwidth comprises at least two dispatch frequency ranges, this method comprises:
A, base station receive the ability of bandwidth and deal with data according to the subscriber equipment that obtains; Be dispatch frequency range of each user equipment allocation; Send the frequency of frequency hopping information notifying user equipment according to the dispatch frequency range in the frequency hopping information of receiving to subscriber equipment, frequency hopping is to the dispatch frequency range of correspondence; Wherein said frequency hopping information comprises the frequency of dispatch frequency range;
B, base station send control information and data to the subscriber equipment that is in this dispatch frequency range through said dispatch frequency range simultaneously.
The ability that said subscriber equipment receives bandwidth and deal with data is that said base station obtains from the high-level signaling of receiving from subscriber equipment; Or said base station obtains from the said subscriber equipment of self preserving receives the ability of bandwidth and deal with data.
Said each dispatch frequency range disposes one or more control channels and data channel respectively; Perhaps a plurality of control channels of dispatch frequency range configuration and data channel; Then among the step B, said base station is to send control information simultaneously and data to the subscriber equipment that is in this dispatch frequency range through the control channel of said dispatch frequency range and data channel.
The system of transmission data in a kind of orthogenic frequency-division multiplexing system, system bandwidth comprises at least two dispatch frequency ranges, this system comprises:
The base station; Be used for receiving the ability of bandwidth and deal with data according to the subscriber equipment that obtains; Be dispatch frequency range of each user equipment allocation, send frequency hopping information, send control information simultaneously and data to the subscriber equipment that is in this dispatch frequency range through said dispatch frequency range to subscriber equipment; Wherein, said frequency hopping information comprises the frequency of dispatch frequency range;
Subscriber equipment is used for after dispatch frequency range receives control information and data, checks according to control information whether self is scheduled, and when self is scheduled, handles receiving data; According to the frequency of the dispatch frequency range in the frequency hopping information of receiving, frequency hopping is to the dispatch frequency range of correspondence.
Said base station comprises:
Distribution module is used for being dispatch frequency range of each user equipment allocation according to the subscriber equipment reception bandwidth that obtains and the ability of deal with data;
First sending module is used for sending control information simultaneously and data to the subscriber equipment that is in this frequency band through said dispatch frequency range.
The ability that said subscriber equipment receives bandwidth and deal with data is that said distribution module obtains from the high-level signaling of receiving from subscriber equipment; Or said distribution module obtains from the said subscriber equipment of self preserving receives the ability of bandwidth and deal with data.
Said each dispatch frequency range disposes one or more control channels and data channel respectively; Perhaps a plurality of control channels of dispatch frequency range configuration and data channel, then said first sending module is to send control information simultaneously and data to the subscriber equipment that is in this dispatch frequency range through the control channel of said dispatch frequency range and data channel.
Said base station can also comprise:
Second sending module is used for sending frequency hopping information to subscriber equipment, and said frequency hopping information comprises the frequency of dispatch frequency range;
Then said subscriber equipment also comprises:
The frequency hopping module is used for the frequency according to the dispatch frequency range of the frequency hopping information of receiving, frequency hopping is to the dispatch frequency range of correspondence.
A kind of base station, this base station comprises:
Distribution module is used for according to the subscriber equipment reception bandwidth that obtains and the ability of deal with data, and for subscriber equipment provides system bandwidth, said system bandwidth comprises at least two dispatch frequency ranges, is dispatch frequency range of each user equipment allocation;
First sending module is used for sending control information simultaneously and data to the subscriber equipment that is in this frequency band through said dispatch frequency range; Second sending module is used for sending frequency hopping information to subscriber equipment, and said frequency hopping information comprises the frequency of dispatch frequency range.
The present invention is divided at least two dispatch frequency ranges with system bandwidth; For each dispatch frequency range disposes control channel and data channel respectively,, control information and data are sent to subscriber equipment together through control channel on the dispatch frequency range and data channel to dispatching on the different frequency band of different user equipment distribution; Thereby eliminated the scheduling time delay; Alleviate the load of network, improved network utilization, reduced presence of intercell interference.
Description of drawings
The connection block diagram that Fig. 1 forms for system of the present invention;
The structural representation that Fig. 2 forms for base station of the present invention;
Fig. 3 A is divided into system bandwidth for the present invention the sketch map of two dispatch frequency ranges;
Fig. 3 B is the sketch map of the dispatch frequency range of configuration UE of the present invention;
Fig. 4 is for realizing the schematic flow sheet of the inventive method;
Fig. 5 is the schematic flow sheet of the embodiment of the invention one;
Fig. 6 is the schematic flow sheet of the embodiment of the invention two.
Embodiment
To in ofdm system, transmitting control channel information at present when the data; The problem that has the scheduling time delay; The present invention is divided at least two dispatch frequency ranges with system bandwidth; Each dispatch frequency range is disposed control channel and data channel respectively, through control channel on the dispatch frequency range and data channel control information and data are sent together, thereby solved the problems referred to above.
The connection block diagram that Fig. 1 forms for system of the present invention.As shown in Figure 1, system of the present invention comprises: base station 10 and UE 20.
Base station 10 with UE 20 wireless connections, is used to each UE 20 and distributes a dispatch frequency range, sends frequency hopping information to subscriber equipment, sends control information simultaneously and data to the UE that is in this dispatch frequency range 20 through said dispatch frequency range.
System bandwidth comprises at least two dispatch frequency ranges, and the method that then system bandwidth is divided at least two dispatch frequency ranges comprises:
With the bandwidth of system bandwidth divided by the subscriber equipment reception that receives the bandwidth ability minimum in the system; With the numerical value round numbers that obtains; With the quantity of this integer, have at least a dispatch frequency range bandwidth to equal to receive in the sub-district reception bandwidth of the minimum subscriber equipment of bandwidth ability in the dispatch frequency range of division as dispatch frequency range; Perhaps at random system bandwidth is divided at least two dispatch frequency ranges.
Each dispatch frequency range can dispose one or more control channels and data channel; Perhaps a plurality of control channels of dispatch frequency range configuration and data channel, base station 10 can send control information and data to the UE that is in this dispatch frequency range through the control channel and the data channel of dispatch frequency range.
The frequency that comprises dispatch frequency range in the frequency hopping information.
UE 20, with base station 10 wireless connections, are used for after dispatch frequency range receives control information and data, check according to control information whether self is scheduled, and when self is scheduled, handle receiving data; When having data to send, send 10 to the base station and send a request message, according to the Indication message of the uplink scheduling grant channel of receiving, frequency hopping is sent data to corresponding dispatch frequency range.
Wherein, UE 20 also comprises frequency hopping module 200.
The frequency hopping module is used for the frequency according to the dispatch frequency range of the frequency hopping information of receiving, frequency hopping is to the dispatch frequency range of correspondence.
The structural representation that Fig. 2 forms for base station of the present invention.As shown in Figure 3, base station 10 of the present invention comprises: distribution module 100 and sending module 110.
Fig. 3 A is divided into system bandwidth for the present invention the sketch map of two dispatch frequency ranges.Shown in Fig. 3 A,
System bandwidth is 20MHz; This system bandwidth is divided into two dispatch frequency ranges; The bandwidth of each dispatch frequency range is 10MHz; On each dispatch frequency range, dispose control channel and data channel respectively,, send control information simultaneously and data to the UE of this frequency band through control channel in the dispatch frequency range and data channel for UE distributes dispatch frequency range separately.
With the UE separated into two parts that concentrates in together, each dispatch frequency range works independently like this, and the UE of different receiving abilities can receive the information of control channel and the data of data channel simultaneously on different dispatch frequency ranges.
If in communication process, need the dispatch frequency range of certain UE of adjustment, then the base station reconfigures UE through high-level signaling.
Fig. 3 B is the sketch map of the dispatch frequency range of configuration UE of the present invention.Shown in Fig. 3 B,
The mode of a kind of preferable distribution UE be the base station according to the ability that UE receives bandwidth and deal with data, be the user equipment allocation dispatch frequency range.When UE is connected with the base station; UE need send Radio Resource to the base station and insert request; The base station obtains the reception bandwidth of UE and the ability of deal with data according to the high-level signaling received, perhaps from the UE that self preserves receives the ability of bandwidth and deal with data, obtains, thereby distributes to the UE dispatch frequency range.
Comprise the dispatch frequency range of a 10MHz and the dispatch frequency range of a 20MHz among the figure in the system, the dispatch frequency range of 10MHz can only the interior reception of dispatching patcher bandwidth ability be the UE of 10MHz, and the dispatch frequency range of 20MHz can the interior all UE of dispatching patcher.Base station assigns has for 10MHz dispatch frequency range and 20MHz dispatch frequency range to be used to separately the control channel dispatched and the data channel of transmission data.See from resource; The physical resource that the dispatch frequency range of 10MHz takies is the part of 20MHz dispatch frequency range; When the resource on the 10MHz dispatch frequency range was not used fully, the base station can be given the scheduling of resource that does not have on the 10MHz dispatch frequency range to utilize had the UE that 20MHz receives bandwidth ability.
Fig. 4 is for realizing the schematic flow sheet of the inventive method.As shown in Figure 4, the inventive method comprises the following steps:
A dispatch frequency range is distributed for each UE in step 401, base station.
Fig. 5 is the schematic flow sheet of the embodiment of the invention one.As shown in Figure 5, present embodiment one comprises the following steps:
A dispatch frequency range is distributed for each UE in step 501, base station.
Fig. 6 is the schematic flow sheet of the embodiment of the invention two.As shown in Figure 6, present embodiment two comprises the following steps:
Step 600, system bandwidth is divided at least two dispatch frequency ranges, each control channel of dispatch frequency range configuration and data channel.
A dispatch frequency range is distributed for each UE in step 601, base station.
Step 602, UE send Radio Resource to the base station and insert request when being connected with the base station.
Step 603, base station obtain the reception bandwidth of this UE and the ability of deal with data according to the high-level signaling of receiving, and are UE allocation schedule frequency band, send frequency hopping information to UE.
Step 604, UE are according to the frequency hopping information of receiving, frequency hopping is to the dispatch frequency range of correspondence.
Step 605, when UE has data to send, send a request message to the base station.
After request message is received in step 606, base station,,, send the indication information of up grant channel to this UE for UE distributes a up channel according to the situation that up channel carries.
Step 607, UE jump on the corresponding dispatch frequency range and send data according to the indication information of receiving.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. the method for transmission data in the orthogenic frequency-division multiplexing system is characterized in that system bandwidth comprises at least two dispatch frequency ranges, and this method comprises:
A, base station receive the ability of bandwidth and deal with data according to the subscriber equipment that obtains; Be dispatch frequency range of each user equipment allocation; Send the frequency of frequency hopping information notifying user equipment according to the dispatch frequency range in the frequency hopping information of receiving to subscriber equipment, frequency hopping is to the dispatch frequency range of correspondence; Wherein said frequency hopping information comprises the frequency of dispatch frequency range;
B, base station send control information and data to the subscriber equipment that is in this dispatch frequency range through said dispatch frequency range simultaneously.
2. the method for claim 1 is characterized in that, the ability that said subscriber equipment receives bandwidth and deal with data is that said base station obtains from the high-level signaling of receiving from subscriber equipment; Or said base station obtains from the said subscriber equipment of self preserving receives the ability of bandwidth and deal with data.
3. the method for claim 1; It is characterized in that; Said each dispatch frequency range disposes one or more control channels and data channel respectively; Perhaps a plurality of control channels of dispatch frequency range configuration and data channel, then among the step B, said base station is to send control information simultaneously and data to the subscriber equipment that is in this dispatch frequency range through the control channel of said dispatch frequency range and data channel.
4. the system of transmission data in the orthogenic frequency-division multiplexing system is characterized in that system bandwidth comprises at least two dispatch frequency ranges, and this system comprises:
The base station; Be used for receiving the ability of bandwidth and deal with data according to the subscriber equipment that obtains; Be dispatch frequency range of each user equipment allocation, send frequency hopping information, send control information simultaneously and data to the subscriber equipment that is in this dispatch frequency range through said dispatch frequency range to subscriber equipment; Wherein, said frequency hopping information comprises the frequency of dispatch frequency range;
Subscriber equipment is used for after dispatch frequency range receives control information and data, checks according to control information whether self is scheduled, and when self is scheduled, handles receiving data; According to the frequency of the dispatch frequency range in the frequency hopping information of receiving, frequency hopping is to the dispatch frequency range of correspondence.
5. system as claimed in claim 4 is characterized in that, said base station comprises:
Distribution module is used for being dispatch frequency range of each user equipment allocation according to the subscriber equipment reception bandwidth that obtains and the ability of deal with data;
First sending module is used for sending control information simultaneously and data to the subscriber equipment that is in this frequency band through said dispatch frequency range.
6. system as claimed in claim 5 is characterized in that, the ability that said subscriber equipment receives bandwidth and deal with data is that said distribution module obtains from the high-level signaling of receiving from subscriber equipment; Or said distribution module obtains from the said subscriber equipment of self preserving receives the ability of bandwidth and deal with data.
7. system as claimed in claim 4; It is characterized in that; Said each dispatch frequency range disposes one or more control channels and data channel respectively; Perhaps a plurality of control channels of dispatch frequency range configuration and data channel, then said first sending module is to send control information simultaneously and data to the subscriber equipment that is in this dispatch frequency range through the control channel of said dispatch frequency range and data channel.
8. system as claimed in claim 4 is characterized in that, said base station also comprises:
Second sending module is used for sending frequency hopping information to subscriber equipment, and said frequency hopping information comprises the frequency of dispatch frequency range;
Then said subscriber equipment also comprises:
The frequency hopping module is used for the frequency according to the dispatch frequency range of the frequency hopping information of receiving, frequency hopping is to the dispatch frequency range of correspondence.
9. a base station is characterized in that, this base station comprises:
Distribution module is used for according to the subscriber equipment reception bandwidth that obtains and the ability of deal with data, and for subscriber equipment provides system bandwidth, said system bandwidth comprises at least two dispatch frequency ranges, is dispatch frequency range of each user equipment allocation;
First sending module is used for sending control information simultaneously and data to the subscriber equipment that is in this frequency band through said dispatch frequency range;
Second sending module is used for sending frequency hopping information to subscriber equipment, and said frequency hopping information comprises the frequency of dispatch frequency range.
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| CN2006101651363A CN101202578B (en) | 2006-12-13 | 2006-12-13 | Method and system for transmitting data in quartered frequency-division multiplex system |
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| CN2006101651363A CN101202578B (en) | 2006-12-13 | 2006-12-13 | Method and system for transmitting data in quartered frequency-division multiplex system |
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| CN101202578A CN101202578A (en) | 2008-06-18 |
| CN101202578B true CN101202578B (en) | 2012-01-25 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106165519B (en) * | 2014-05-08 | 2020-04-21 | 华为技术有限公司 | Data scheduling method and device |
| JP6239194B2 (en) * | 2015-08-07 | 2017-11-29 | 三菱電機株式会社 | TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD |
| CN107295678B (en) | 2016-04-01 | 2022-05-13 | 夏普株式会社 | Base station, user equipment and related method |
| CN107846269B (en) * | 2016-09-20 | 2020-05-15 | 工业和信息化部电信研究院 | Wireless control channel design method and device |
| CN108366413B (en) * | 2017-01-26 | 2022-01-14 | 华为技术有限公司 | Terminal, network device and communication method |
| CN108633034B (en) | 2017-03-24 | 2021-04-09 | 华为技术有限公司 | Data transmission method, network equipment and terminal equipment |
| CN109787731A (en) * | 2017-11-14 | 2019-05-21 | 珠海市魅族科技有限公司 | A kind of method, apparatus and communication equipment of the distribution of instruction time-domain resource |
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| CN1312980A (en) * | 1998-06-08 | 2001-09-12 | 艾利森电话股份有限公司 | Frequency-hopping in a handwidth-on-clemand system |
| CN1849011A (en) * | 2006-04-30 | 2006-10-18 | 中兴通讯股份有限公司 | Resource distributing method for asymmetric bandwidth ability radio network switch-in system |
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- 2006-12-13 CN CN2006101651363A patent/CN101202578B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312980A (en) * | 1998-06-08 | 2001-09-12 | 艾利森电话股份有限公司 | Frequency-hopping in a handwidth-on-clemand system |
| CN1849011A (en) * | 2006-04-30 | 2006-10-18 | 中兴通讯股份有限公司 | Resource distributing method for asymmetric bandwidth ability radio network switch-in system |
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