CN101772132A - License information processing method of user station and base station, device and system - Google Patents
License information processing method of user station and base station, device and system Download PDFInfo
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- CN101772132A CN101772132A CN200910076084A CN200910076084A CN101772132A CN 101772132 A CN101772132 A CN 101772132A CN 200910076084 A CN200910076084 A CN 200910076084A CN 200910076084 A CN200910076084 A CN 200910076084A CN 101772132 A CN101772132 A CN 101772132A
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Abstract
An embodiment of the invention relates to the wireless communication field, and aims to solve the problem of communication resource waste in the prior art due to the fact that a base station directly comprises a sequence number, a frame number and resource location information in response message. The embodiment of the invention provides an access license information processing method of a user station and a base station as well as a device, the processing method of the user station comprises: recording a sequence number in each uploaded request information as n, and a frame number and a resource location as m by the user station; receiving the scrambling license information transmitted by the base station; and causing the recorded m and n to generate a scrambling code according to a first predetermined rule, and utilizing the scrambling code to demodulate the scrambling license information according to a second predetermined rule. The communication spending between the base station and the user station can be reduced, and performances of the system can also be ensured by employing the method, the device and a communication system.
Description
Technical field
The present invention relates to wireless communication field, is method, device and the communication system of subscriber station, base station license information processing concretely.
Background technology
The subscriber station (SS, Subscriber Station) that is in Idle state if desired with base station (BS, Base Station) exchange of information, must use reverse link traffic channel or downlink traffic channel.BS is by the parameter configuration and the parameter update of the users broadcasting of corresponding broadcast channel in network oneself, and SS needed to listen to the network configuration information that BS issues before using Traffic Channel.SS needs to send solicited message by the BS channel appointed after guaranteeing that the network configuration information that is obtained is up-to-date.Adopt mode when sending solicited message between the SS usually based on competition, SS at first determines to send the position of solicited message running time-frequency resource, from available code space, select a sign indicating number at random or according to certain rule then, usually have orthogonality between the different sign indicating numbers in this code space, or accurate orthogonality.On corresponding running time-frequency resource, send and selected codeword information then, be referred to as solicited message.In the BS side, to the detection of solicited message, BS can only determine detected code word on the resource of correspondence, can not determine concrete SS, therefore can only respond this code word when responding.
In IEEE 802.16e, SS carries out uplink synchronous and power adjustment by sending initial ranging request (Initial ranging), SS should at first carry out down-going synchronous, by the up channel in medium access control (MAC) message feature that (UCD) obtains up channel is described then, SS obtains the transmission interval of Initial ranging by the up mapping of scanning (UL-MAP), on the transmission resource of Initial ranging, send code division multiple access (the CDMA:Code Division Multiple Access) sequence of selecting at random then, after BS detects corresponding sequence, replying (RNG-RSP:Ranging Response) message by broadcasting range finding responds the Initial ranging of correspondence, because BS is when detecting corresponding CDMA sequence, can not determine it is which SS under the network sends out, be merely able to corresponding sequence and access information are responded, therefore in RNG-RSP message, need to comprise corresponding sequence numbering and corresponding resource location, need in addition the detected sequence time of carrying out is adjusted and the power adjustment.SS detects by the RNG-RSP message that BS is issued, if sequence numbering and resource location that sequence numbering that discovery RNG-RSP carries and corresponding resource location information and SS send are complementary, the Initial ranging that then confirms oneself sends successfully, and the time of reading in the RNG-RSP message is adjusted parameter and power parameter.
The present application people is in realizing process of the present invention, find that prior art has following deficiency at least, because resource location information and the used sequence numbering of access used when inserting all are Given information concerning SS and BS, so this message has increased expense when carrying by RNG-RSP message.
Summary of the invention
The object of the present invention is to provide a kind of subscriber station, base station to handle method, the Apparatus and system of access permission information, be used for solving in the grant message territory that passes under the prior art base station and comprise sequence numbering; frame number and resource location information, the problem of having wasted the communication resource.
In order to realize the foregoing invention purpose, the method that the embodiment of the invention provides a kind of base station to handle access permission information, the sequence numbering that obtains in the solicited message that subscriber station uploads is designated as n[i], frame number and resource location are designated as m[i], wherein i is an integer, the numbering of expression subscriber station; Generate License Info; Utilize m[i] and n[i] scrambler generated according to first pre-defined rule; Utilize described scrambler described License Info to be carried out scrambling, the License Info after the generation scrambling according to second pre-defined rule; Send the License Info after the described scrambling.
In order to realize the foregoing invention purpose, the method that the embodiment of the invention also provides a kind of subscriber station to handle access permission information, this method comprise that the sequence numbering that subscriber station record is sent in the solicited message at every turn is designated as n, and frame number and resource location are designated as m; Receive the License Info that the base station passes down through scrambling; The m and the n of above-mentioned record are generated scrambler according to first pre-defined rule, utilize this scrambler according to the described License Info of the second pre-defined rule demodulation through scrambling.
In order to realize the foregoing invention purpose, the embodiment of the invention also provides a kind of subscriber station, comprises logging modle, communication module, demodulation module; Described logging modle, the frame number and the resource location information that are used for the solicited message of recording user station transmission are designated as m, and the numbering of sequence is designated as n; Described communication module is used for and base station communication, receives the License Info through scrambling that the base station sends, and perhaps sends above-mentioned solicited message to the base station; Described demodulation module is used for the m and the n of above-mentioned record are generated scrambler according to first pre-defined rule, utilizes this scrambler according to the described License Info through scrambling of the second pre-defined rule demodulation.
In order to realize the foregoing invention purpose, the embodiment of the invention also provides a kind of base station, comprises acquisition module, permission generation module, scrambler generation module, scrambling module, communication module; Described acquisition module, the frame number and the resource location that are used for obtaining the solicited message that subscriber station uploads are designated as m[i], sequence numbering is designated as n[i]; Described permission generation module generates License Info; Described scrambler generation module is used to utilize described m[i] and n[i] scrambler generated according to first pre-defined rule; Described scrambling module is used to utilize described scrambler according to second pre-defined rule described License Info to be carried out scrambling, the License Info after the generation scrambling; Described communication module is used to send the License Info after the described scrambling.
Correspondingly, the embodiment of the invention also provides a kind of communication system, but comprises that subscriber station is connected with communication mode with the base station, wherein,
The base station, the sequence numbering that is used for obtaining the solicited message that subscriber station uploads is designated as n[i], frame number and resource location are designated as m[i], wherein i is an integer, the numbering of expression subscriber station; Utilize m[i] and n[i] scrambler generated according to first pre-defined rule; Utilize described scrambler described License Info to be carried out scrambling, the License Info after the generation scrambling according to second pre-defined rule; License Info after described subscriber station sends described scrambling.
The beneficial effect of the embodiment of the invention is that the present invention numbers and resource location information by the transmit frame that utilizes scrambler to carry in the solicited message, and sequence numbering information has reduced the base station to the communication overhead between the subscriber station, has guaranteed the performance of system simultaneously again; The cost of realizing is low, does not need existing subscriber station and base station are done very big change.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
Figure 1 shows that the flow chart of subscriber station processing access permission information approach first embodiment of the present invention;
Figure 2 shows that frame structure embodiment schematic diagram in the tdd systems of the present invention;
Figure 3 shows that frame structure embodiment schematic diagram in the frequency division duplex system of the present invention;
Figure 4 shows that the subscriber station demodulation License Info second embodiment flow chart of the present invention;
Figure 5 shows that the flow chart of base station processing access permission information approach embodiment of the present invention;
Figure 6 shows that the first example structure schematic diagram of subscriber station of the present invention;
Figure 7 shows that the second example structure schematic diagram of subscriber station of the present invention;
Figure 8 shows that the structural representation of base station embodiment of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer,, the present invention is described in further details below in conjunction with execution mode and accompanying drawing.At this, exemplary embodiment of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
The embodiment of the invention provides a kind of subscriber station, the method for base station license information processing, Apparatus and system.Below in conjunction with accompanying drawing the embodiment of the invention is elaborated.
The License Info here can be the response message that the base station is inserted at random for subscriber station, i.e. access permission information.
SS needs to scan down channel and finishes Frequency Synchronization and time synchronized with BS before transmission, the control information that issues of demodulation BS then, obtain the parameter configuration of BS, read the resource and the parameter information of BS configuration then: comprise the parameter of resource location and open loop power control, SS sends solicited message then.
Be illustrated in figure 1 as subscriber station and handle the flow chart of access permission information approach first embodiment.
Comprise step 101, SS sends solicited message, and writing down frame number (Frame Number) in this solicited message and corresponding resource location information is m, and the numbering of the sequence that sends is designated as n.
When adopting check bit to License Info to carry out scrambling, the scrambler length of generation should be relevant with the bit length of check code, during scrambling, the bit of scrambler and check code carried out binary arithmetic operation.
When adopting to whole License Info message[i] when carrying out scrambling, it is the additional above-mentioned check code in License Info back, the scrambler length that produces should be relevant with whole License Info, the length that comprises License Info and check bit, during scrambling, scrambler and whole License Info are carried out binary arithmetic operation.
When to through the whole License Info behind the coding when carrying out scrambling, the scrambler length of generation should be with relevant through the whole License Info behind the coding, during scrambling, scrambler and bit through the whole License Info behind the coding carried out binary arithmetic operation.Here said binary arithmetic operation comprise binary with or, operation such as XOR.
In described step 101, in order to reduce expense, this frame number can be a relative frame number, for example only includes the physical frame that inserts chance in the regular hour scope.
By the above embodiments, can in the access permission information that the BS end issues, not comprise sequence numbering and resource location information, saved communication overhead.
Be illustrated in figure 2 as frame structure embodiment schematic diagram in time division duplex (the TDD:Time Division Duplex) system, in tdd systems, exist uplink frame and downlink frame to represent with UL and DL respectively, Fig. 2 represents that up-downgoing resource allocation ratio is 1: 1, comprise several subframes in one frame, the wherein dark uplink frame that has the solicited message resource that is expressed as in uplink frame, has only a resource that has solicited message in each ascending physical signal frame, for example can use the relative frame number of several the conducts in end of physical frame number, also the frame in 10 milliseconds can be numbered, be respectively 0,1,2 ... described frame number can be used above-mentioned relative frame number, can reduce the information of frame number like this.The same embodiment of step such as remaining scrambler generation, scrambling, this repeats no more again.
Be illustrated in figure 3 as frame structure embodiment schematic diagram in Frequency Division Duplexing (FDD) (the FDD:Frequency Division Duplex) system, in frequency division duplex system, exist uplink frame and downlink frame to represent with UL and DL respectively, the wherein dark uplink frame that has the solicited message resource that is expressed as in uplink frame, has only a resource that has solicited message in each ascending physical signal frame, relative frame number is 0,1 or 2, can reduce the information of frame number like this.The same embodiment of step such as remaining scrambler generation, scrambling, this repeats no more again.
Be illustrated in figure 4 as the subscriber station license information processing second embodiment flow chart of the present invention.
Except the step that comprises above-mentioned first embodiment, after step 403, also comprise:
Step 404 is carried out verification to the License Info after the demodulation, can use cyclic redundancy check (CRC) (CRC check) in this example, if can be by CRC check then enter step 405, otherwise enters step 406.
Step 405, SS adjusts the parameter of described subscriber station oneself according to the corresponding information in the described License Info.
Step 406 is carried out verification of the prior art failure and is handled, and for example receives once more and License Info that the demodulation base station passes down, if all License Infos all can not resend solicited message by verification in official hour.
Be illustrated in figure 5 as base station of the present invention and handle the flow chart of access permission information approach embodiment.Comprise:
Here frame number and resource location are represented with a variable, can certainly be represented that the embodiment of the invention is not limited thereto with two variablees;
Step 505 sends the License Info message[i after the described scrambling].
By the foregoing description, the base station does not comprise sequence numbering and resource location information in descending response message, saves communication overhead.
Here first pre-defined rule comprises: with described m[i] and n[i] as seed, generating length is the scrambler scramble[i of length], for example with m[i] Bit String and described n[i] the Bit String addition, multiplication by constants then, it is the scrambler scramble[i of length that the result is converted to 2 systems generation bit length].
For example, frame number and resource location m[i]=5, sequence numbering n[i]=51, f (n[i], m[i])=(n[i]+m[i]) * 15732 (constant)=880992 is with above-mentioned 880992 binary strings 00000 that are converted to length length (being 20 in this example); 11010; 00111; 01011, this binary string is scramble[i].
Certainly, first pre-defined rule here is not limited to above-mentioned scrambler generation method.
Here second pre-defined rule comprises: with described s[i] and described scramble[i] binary Bit String step-by-step addition, and not-carry.
Here second pre-defined rule can also comprise: with described s[i] and described scramble[i] binary Bit String step-by-step is multiplied each other, and not-carry.
The present invention does not limit the above-mentioned second pre-defined rule s[i] with described scramble[i] the scrambling mode, prerequisite is can demodulate corresponding s[i at subscriber station with the second same pre-defined rule], first pre-defined rule and second pre-defined rule among following each embodiment of the present invention are all followed above-mentioned definition.
Be illustrated in figure 6 as the first example structure schematic diagram of subscriber station of the present invention.Comprise:
Logging modle 601, communication module 602, demodulation module 603.
Described logging modle 601 is used for sending solicited message at SS, and the frame number (Frame Number) and the corresponding resource location information that write down in this solicited message are m, and the sequence numbering that sends is designated as n.
Described communication module 602 is used for and base station communication, for example can be used to receive the License Info message[i through scrambling that the base station sends], also can send above-mentioned solicited message to the base station.
Described demodulation module 603 is used for the m of above-mentioned record is generated scrambler with n according to first pre-defined rule identical with described base station, utilizes this scrambler according to the second pre-defined rule demodulation described License Info message[i that receive identical with described base station].
By the above embodiments, can in the response message that the BS end issues, not comprise sequence numbering and resource location information, save communication overhead.
Be illustrated in figure 7 as the second example structure schematic diagram of subscriber station of the present invention.
In the present embodiment, except comprising the logging modle 701 that comprises among above-mentioned subscriber station first embodiment, communication module 702, outside the demodulation module 703,
Also comprise verification module 704, adjusting module 705, verification failure processing module 706, frame number module 707.
Described verification module 704, be used to judge that whether License Info after the demodulation is by verification, for example be cyclic redundancy check (CRC) (CRC check) in this example, if can be by CRC check then will call adjusting module 705 is adjusted described subscriber station according to the content in the described License Info parameter, otherwise call verification failure processing module 706, utilize this License Info that verification failure processing module 706 receives once more and the demodulation base station issues, if all License Infos all can not resend solicited message by verification in official hour.
Described frame number module 707 is used for the frame number of solicited message is converted to relative frame number, for example only includes the physical frame that inserts chance in the regular hour scope.Frame number module 707 can link to each other with logging modle 701, also can be arranged in logging modle 701.
Be illustrated in figure 8 as the structural representation of base station embodiment of the present invention.Comprise:
Described acquisition module 801 is used for obtaining sequence numbering, frame number and the resource location of the solicited message that subscriber station uploads, and frame number and resource location are designated as m[i], sequence numbering is designated as n[i].
Described permission generation module 802 is used to be directed to different subscriber stations and generates License Info s[i], the bit length of the encoded packets of this License Info is length, this is gone into to comprise at least in the License Info time and adjusts parameter and power contorl parameters.
Described scrambler generation module 803 is used to utilize described m[i] and n[i] to generate bit length according to first pre-defined rule be the scrambler scramble[i of length].
Described scrambling module 804 is used to utilize described scrambler scramble[i] according to second pre-defined rule to described License Info s[i] carry out scrambling, generate the License Info message[i after the scrambling].
Described communication module 805 is used to send the License Info message[i after the described scrambling].
By the foregoing description, the base station does not comprise sequence numbering and resource location information in descending response message, saves communication overhead.
Correspondingly, the embodiment of the invention also provides a kind of communication system, comprises subscriber station and base station, but connects with communication mode, wherein,
The sequence numbering that the base station is used for obtaining the solicited message that subscriber station uploads is designated as n[i], frame number and resource location are designated as m[i], wherein i is an integer, the numbering of expression subscriber station; Utilize m[i] and n[i] scrambler generated according to first pre-defined rule; Utilize described scrambler described License Info to be carried out scrambling, the License Info after the generation scrambling according to second pre-defined rule; License Info after described subscriber station sends described scrambling.
Described first pre-defined rule here comprises: with described m[i] and n[i] as seed, utilize this seed to generate the binary string of a predetermined bit length as scrambler;
Described second pre-defined rule comprises: with the check code bit of described scrambler and License Info, or the bit of whole License Info, or the bit of the whole License Info behind the process coding carries out binary arithmetic operation.
The above-mentioned method that provides, subscriber station, base station apparatus and communication system, number and resource location information by the transmit frame that utilizes scrambler to carry in the solicited message, sequence numbering information has reduced the base station to the communication overhead between the subscriber station, has guaranteed the performance of system simultaneously again; The cost of realizing is low, does not need existing subscriber station and base station are done very big change.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-OnlyMemory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above-described embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is the specific embodiment of the present invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (17)
1. the method for a base station license information processing is characterized in that this method comprises,
The sequence numbering that obtains in the solicited message that subscriber station uploads is designated as n[i], frame number and resource location are designated as m[i], wherein i is an integer, the numbering of expression subscriber station;
Utilize m[i] and n[i] scrambler generated according to first pre-defined rule; Utilize described scrambler License Info to be carried out scrambling, the License Info after the generation scrambling according to second pre-defined rule;
Send the License Info after the described scrambling.
2. the method for base station according to claim 1 license information processing is characterized in that described first pre-defined rule comprises: with described m[i] and n[i] as seed, utilize this seed to generate the binary string of a predetermined bit length as scrambler.
3. the method for base station according to claim 1 license information processing, it is characterized in that described second pre-defined rule comprises: with the check code bit of described scrambler and License Info, or the bit of whole License Info, or the bit of the whole License Info behind the process coding carries out binary arithmetic operation.
4. the method for a subscriber station license information processing is characterized in that this method comprises,
Subscriber station record sends the sequence numbering n in the solicited message at every turn, frame number and resource location m;
Receive the License Info that the base station issues through scrambling; The m and the n of above-mentioned record are generated scrambler according to first pre-defined rule, utilize this scrambler according to the described License Info of the second pre-defined rule demodulation through scrambling.
5. the method for subscriber station license information processing according to claim 4 is characterized in that described first pre-defined rule comprises: as seed, utilize this seed to generate the binary string of a predetermined bit length as scrambler described m and n.
6. the method for subscriber station license information processing according to claim 4, it is characterized in that described second pre-defined rule comprises: with the check code bit of described scrambler and License Info, or the bit of whole License Info, or the bit of the whole License Info behind the process coding carries out binary arithmetic operation.
7. the method for subscriber station license information processing according to claim 4 is characterized in that further comprising behind the described License Info of demodulation:
If License Info after the described demodulation of verification by described verification then described subscriber station disposes the parameter of this subscriber station according to this License Info, is handled otherwise carry out the verification failure.
8. the method for subscriber station license information processing according to claim 7, it is characterized in that described verification failure processing comprises, all License Infos receive once more and License Info that the demodulation base station issues, if all can not resend solicited message by verification in official hour.
9. a subscriber station is characterized in that, comprise,
Logging modle, communication module, demodulation module, wherein
Described logging modle, the frame number and the resource location information that are used for the solicited message of recording user station transmission are designated as m, and the numbering of sequence is designated as n;
Described communication module is used for and base station communication, sends above-mentioned solicited message to the base station, receives the License Info through scrambling that the base station sends;
Described demodulation module is used for the m and the n of described logging modle record are generated scrambler according to first pre-defined rule, utilizes this scrambler according to the described License Info through scrambling of the second pre-defined rule demodulation, and sends to described communication module.
10. subscriber station according to claim 9 is characterized in that, described demodulation module generates scrambler according to first pre-defined rule, comprising: as seed, utilize this seed to generate the binary string of a predetermined bit length as scrambler described m and n.
11. subscriber station according to claim 9, it is characterized in that, described demodulation module gets License Info according to the second pre-defined rule demodulation is described through scrambling, comprise: with the check code bit of described scrambler and License Info, or the bit of whole License Info, or the bit of the whole License Info behind the process coding carries out binary arithmetic operation.
12. subscriber station according to claim 9 is characterized in that described logging modle further comprises the frame number module, is used for renumbeing having the frame that inserts chance in the certain hour scope.
13. a base station is characterized in that, comprises,
Acquisition module, permission generation module, scrambler generation module, scrambling module, communication module;
Described acquisition module, the frame number and the resource location that are used for obtaining the solicited message that subscriber station uploads are designated as m[i], sequence numbering is designated as n[i], wherein i is an integer, the numbering of expression subscriber station;
Described permission generation module generates License Info;
Described scrambler generation module is used to utilize described m[i] and n[i] scrambler generated according to first pre-defined rule;
Described scrambling module is used to utilize described scrambler according to second pre-defined rule described License Info to be carried out scrambling, the License Info after the generation scrambling;
Described communication module is used to send the License Info after the described scrambling.
14. base station according to claim 13 is characterized in that, described scrambler generation module is with described m[i] and n[i] as seed, utilize this seed to generate the binary string of a predetermined bit length as scrambler.
15. base station according to claim 13 is characterized in that, described scrambling module, and with the check code bit of described scrambler and License Info, or the bit of whole License Info, or the bit of the whole License Info behind the process coding carries out binary arithmetic operation.
16. a communication system, but comprise that subscriber station is connected with communication mode with the base station, it is characterized in that,
Described base station, the sequence numbering that is used for obtaining the solicited message that subscriber station uploads is designated as n[i], frame number and resource location are designated as m[i], wherein i is an integer, the numbering of expression subscriber station; Utilize m[i] and n[i] scrambler generated according to first pre-defined rule; Utilize described scrambler described License Info to be carried out scrambling, the License Info after the generation scrambling according to second pre-defined rule; License Info after described subscriber station sends described scrambling.
17. communication system according to claim 16 is characterized in that, described first pre-defined rule comprises: with described m[i] and n[i] as seed, utilize this seed to generate the binary string of a predetermined bit length as scrambler;
Described second pre-defined rule comprises: with the check code bit of described scrambler and License Info, or the bit of whole License Info, or the bit of the whole License Info behind the process coding carries out binary arithmetic operation.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105980A (en) * | 2012-02-10 | 2014-10-15 | 高通股份有限公司 | Inferred time-of-flight ranging |
| US9678194B2 (en) | 2012-08-14 | 2017-06-13 | Qualcomm Incorporated | Positioning using observer-based time-of-arrival measurements |
-
2009
- 2009-01-05 CN CN200910076084A patent/CN101772132A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104105980A (en) * | 2012-02-10 | 2014-10-15 | 高通股份有限公司 | Inferred time-of-flight ranging |
| CN110133590A (en) * | 2012-02-10 | 2019-08-16 | 高通股份有限公司 | Deduction formula flight time ranging |
| US9678194B2 (en) | 2012-08-14 | 2017-06-13 | Qualcomm Incorporated | Positioning using observer-based time-of-arrival measurements |
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Application publication date: 20100707 |