CN101668339B - Method and device for processing assignment message and communication system - Google Patents
Method and device for processing assignment message and communication system Download PDFInfo
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- CN101668339B CN101668339B CN2008102160599A CN200810216059A CN101668339B CN 101668339 B CN101668339 B CN 101668339B CN 2008102160599 A CN2008102160599 A CN 2008102160599A CN 200810216059 A CN200810216059 A CN 200810216059A CN 101668339 B CN101668339 B CN 101668339B
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Abstract
The embodiment of the invention provides a method for processing an assignment message. The method comprises the following steps: receiving a Bitmap of an assignment message from a base station; determining bits corresponding to a removed MS in the Bitmap; and sequentially and inversely substituting the bits corresponding to the removed MS from the last bit of the Bitmap. The invention also provides with a terminal and a communication system. The invention adopts an inverse filling mode to reduce the number of moved bits so as to reduce the probability that the MS cannot receive the assignment message and the possibility of conflicts of different MS on the same resource and improve the spectral efficiency.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of assignment message processing method, device and communication system.
Background technology
Institute of Electrical and Electronics Engineers (Institute of Electrical and Electronic Engineers; IEEE) 802.16m standard support group assignment; The group assignment is about to some MS and forms a group, and each MS in this group corresponds to 1 bit, when sending assignment, sends a bit diagram (bitmap); Each bit just corresponds to a MS among the bitmap; The value 0 of each bit and 1 can represent whether corresponding MS has resource allocation so, and for example 0 expression does not have resource allocation, and 1 expression has resource allocation.Similarly, can also (Channel Quality Information Channel, CQICH) information mapping be to Bitmap with channel quality information channel.
Because travelling carriage (Mobile Station, dynamic adding MS) is perhaps withdrawed from, and the corresponding Bitmap of group assignment or CQICH information answers Dynamic Maintenance.Existing maintaining method is that (Base Station BS) sends whole Bitmap and indicate the call number of the MS that will remove or increase in the base station.For example have a MS to remove, the bit of the bit back that then this MS is corresponding all will move forward in proper order, has increased the probability that MS can not receive this assignment message like this, makes different MS on same asset, send data easily, causes frequency spectrum resource to waste.Also there is same disadvantage in adjustment for CQICH.
Summary of the invention
Based on the deficiency of prior art, the embodiment of the invention provides a kind of assignment message processing method, comprising:
Reception is from the bit diagram Bitmap of the assignment message of base station;
The bit position that the MS that confirms to be removed among the said Bitmap is corresponding;
From last reverse successively alternative said corresponding bit position of MS that is removed of said Bitmap.
Correspondingly, the embodiment of the invention provides a kind of terminal, comprising:
The Bitmap receiving element is used to receive the Bitmap from the assignment message of base station;
Bit confirms the unit in the position, is used to confirm the corresponding bit position of MS that is removed;
The Bitmap adjustment unit is used for from last reverse successively corresponding bit position of the said MS of being removed that substitutes of said Bitmap.
The embodiment of the invention also provides a kind of communication system; Comprise the terminal; But be connected with communication mode with the base station, assignment message to said terminal is sent in said base station, and said terminal is used to receive the Bitmap from the assignment message of base station; The bit position that the MS that confirms to be removed is corresponding, last oppositely successively substitutes said bit position that is removed the MS correspondence from said Bitmap.
The assignment message processing method that the embodiment of the invention provides; Adopt reverse mode of filling, can reduce the number that moves the corresponding bit of MS position, and then reduce the probability that MS can not receive assignment message; Reduce the possibility that different MS is conflicted simultaneously on same asset, and then improve spectrum efficiency.
Description of drawings
Fig. 1 is the method flow diagram of assignment message of the present invention for the group assignment;
Fig. 2 is an embodiment of the invention group assignment bit adjustment sketch map;
Fig. 3 is the method flow diagram of CQICH adjustment information for embodiment of the invention assignment message;
Fig. 4 is an embodiment of the invention apparatus structure block diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail:
BS multicast assignment message, assignment message can also can be channel quality information channel CQICH adjustment information for the group assignment message here.In end side, at first receive bit diagram Bitmap from the assignment message of base station; Each bit among the Bitmap is corresponding with each MS or CQICH;
The bit position that the MS that confirms to be removed among the said Bitmap is corresponding; For example, among the Bitmap be the corresponding bit position of MS that 0 bit bit representation will be removed; The bit position that the MS that is removed is corresponding can be the corresponding bit position of MS that is removed this group in the group assignment, also can be the corresponding bit position of resource that indication is not used in the CQICH adjustment information;
From last reverse successively alternative said corresponding bit position of MS that is removed of said Bitmap.
Here reverse last the corresponding bit position of alternative first MS that is removed that is meant Bitmap that substitutes, penultimate substitutes second bit position that the MS that is removed is corresponding, and rule substitutes according to this.
Substitute through reverse; Can reduce the corresponding quantity in bit position mobile among the Bitmap greatly; Promptly reduce moving between the bit position greatly, because of corresponding MS in each bit position or CQICH, so the assignment message processing method that the embodiment of the invention provides can reduce the probability that MS can not receive assignment message; Avoid different MS on same asset, to conflict largely, improve the availability of frequency spectrum.
BS transmission group assignment message is to MS, like Fig. 1,
BS multicast group assignment message, this message have comprised bitmap message and have been removed the index of user in Bitmap;
Be removed the index of user in bitmap through what comprise in the message, can confirm the corresponding bit position of MS that is removed;
From last reverse successively alternative said corresponding bit position of MS that is removed of said Bitmap.
Like Fig. 2, in certain group 8 users are arranged, MS1 is to respectively corresponding the 1st to the 8th MS of MS8.
Suppose that MS3 and MS5 will be removed, then MS8 substitutes the corresponding bit position of MS3, and MS7 substitutes the corresponding bit position of MS5.So only have moving of the corresponding bit position of MS7 and MS8, MS4 and MS6 need not move forward in proper order.
MS receives assignment message, obtains to distribute to the running time-frequency resource of oneself according to Bitmap, and then on corresponding resource, resolves the data burst of oneself.
Assignment message also can be the CQICH adjustment information, concrete processing method such as Fig. 3,
BS multicast group assignment message, this message comprises bitmap; Different with the group assignment is that this assignment message does not contain the index of user in Bitmap that is removed;
The bit position that the MS that confirms to be removed is corresponding, for example the bit position is that 0 bit is the corresponding bit position of MS that will be removed among the bitmap;
Be removed the corresponding bit position of MS from last reverse successively substituting of said Bitmap.
After MS receives assignment message, obtain to distribute to the CQICH resource of oneself, and send the CQI information of oneself.
Above embodiment is the situation that MS is removed, and can certainly be applicable to the situation of MS adding group.When assignment message is the group assignment, at first, BS multicast assignment message, this message has comprised bitmap message and has been removed the index of user in bitmap and the user profile that will increase;
According to index, can confirm the corresponding bit position of MS that is removed;
When the number of users that is removed is less than or equal to the number of users of increase, the same with prior art, in Bitmap, be removed the MS that the corresponding bit position of MS is increased and substitute; When the number of users that is removed during greater than the number of users that increases, fill the user position that the bit position that the MS that is removed is corresponding is increased successively, and the bit position that has not been filled is risen by last position among the Bitmap, oppositely fills successively.
Correspondingly, the embodiment of the invention also provides a kind of terminal installation, like Fig. 4, comprises that Bitmap receiving element, bit position confirm unit, Bitmap adjustment unit, wherein:
The Bitmap receiving element is used to receive the Bitmap from the assignment message of base station;
Bit confirms the unit in the position, is used to confirm the corresponding bit position of MS that is removed;
The Bitmap adjustment unit is used for receiving last reverse successively corresponding bit position of the said MS of being removed that substitutes of Bitmap from the Bitmap receiving element.
Bit confirms the position that bit that the unit is confirmed is the corresponding bit position of resource that comprises that indication is not used in bit position that the MS that is removed this group in the group assignment is corresponding or the channel quality information channel CQICH adjustment information.
In the terminal, realize the adjustment of bit position among the Bitmap; Be applicable to group assignment or CQICH adjustment information, adopt oppositely and fill, be i.e. last corresponding bit position of alternative first MS that is removed of Bitmap; Penultimate substitutes second bit position that the MS that is removed is corresponding; Rule substitutes according to this, has reduced the bit position of moving greatly, has avoided resource contention.
The embodiment of the invention also provides a kind of communication system; Comprise the terminal; But be connected with communication mode with the base station, assignment message is sent to the terminal in the base station, and said terminal is used to receive the Bitmap from the assignment message of base station; The bit position that the MS that confirms to be removed is corresponding, last oppositely successively substitutes said bit position that is removed the MS correspondence from said Bitmap.
The foregoing description adopts reverse mode of filling, and can reduce the number of the corresponding bit of mobile MS position, and then reduce the probability that MS can not receive assignment message, reduces the possibility that different MS is conflicted simultaneously on same asset, and then improves spectrum efficiency.
" reception " speech in the embodiment of the invention is appreciated that for initiatively obtaining from other modules also can be to receive the information that other modules are sent.Above-mentioned module can be distributed in a device, also can be distributed in multiple arrangement.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
It will be appreciated by those skilled in the art that accompanying drawing is the sketch map of a preferred embodiment, the module in the accompanying drawing might not be that embodiment of the present invention is necessary.
The scheme of the content record of claim also is the protection range of the embodiment of the invention.
One of ordinary skill in the art will appreciate that all or part of processing in the foregoing description method is to instruct relevant hardware to accomplish through program, described program can be stored in a kind of computer-readable recording medium.
The explanation of above embodiment just is used for helping to understand method of the present invention and thought thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as limitation of the present invention.
Claims (5)
1. an assignment message processing method is characterized in that, comprising:
Reception is from the bit diagram Bitmap of the assignment message of base station;
The bit position that the MS that confirms to be removed among the said Bitmap is corresponding; The corresponding bit position of the said MS that is removed comprises the corresponding bit position of MS that is removed this group in the group assignment, the corresponding bit position of resource that perhaps indication is not used in the channel quality information channel CQICH adjustment information;
From last reverse successively alternative said corresponding bit position of MS that is removed of said Bitmap.
2. method according to claim 1; It is characterized in that said Bitmap comprises from last reverse successively corresponding bit position of the said MS of being removed that substitutes: last bit position of said Bitmap substitutes the corresponding bit position of first MS that is removed this group.
3. method according to claim 1; It is characterized in that said Bitmap comprises from last reverse successively corresponding bit position of the said MS of being removed that substitutes: last bit position of said Bitmap substitutes the corresponding bit position of resource that first indication is not used.
4. a terminal is characterized in that, comprising:
The Bitmap receiving element is used to receive the Bitmap from the assignment message of base station;
Bit confirms the unit in the position; Be used to confirm the corresponding bit position of MS that is removed; The corresponding bit position of the said MS that is removed comprises the corresponding bit position of MS that is removed this group in the group assignment, the corresponding bit position of resource that perhaps indication is not used in the channel quality information channel CQICH adjustment information;
The Bitmap adjustment unit is used for from last reverse successively corresponding bit position of the said MS of being removed that substitutes of said Bitmap.
5. a communication system comprises the terminal, but is connected with communication mode with the base station, and assignment message to said terminal is sent in said base station, it is characterized in that,
Said terminal; Be used to receive Bitmap from the assignment message of base station; The bit position that the MS that confirms to be removed is corresponding; From last reverse successively alternative said corresponding bit position of MS that is removed of said Bitmap, the corresponding bit position of the said MS that is removed comprises the corresponding bit position of MS that is removed this group in the group assignment, perhaps indicates the corresponding bit position of resource that is not used in the channel quality information channel CQICH adjustment information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102160599A CN101668339B (en) | 2008-09-05 | 2008-09-05 | Method and device for processing assignment message and communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102160599A CN101668339B (en) | 2008-09-05 | 2008-09-05 | Method and device for processing assignment message and communication system |
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| Publication Number | Publication Date |
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| CN101668339A CN101668339A (en) | 2010-03-10 |
| CN101668339B true CN101668339B (en) | 2012-01-25 |
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| CN2008102160599A Expired - Fee Related CN101668339B (en) | 2008-09-05 | 2008-09-05 | Method and device for processing assignment message and communication system |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848180A (en) * | 1996-07-01 | 1998-12-08 | Xerox Corporation | Color bitmap generation with background dependent black objects |
| CN1694081A (en) * | 2005-05-31 | 2005-11-09 | 清华大学 | Implementing method of virtual intelligent controller in SAN system |
| CN1801957A (en) * | 2005-07-18 | 2006-07-12 | 华为技术有限公司 | Reverse channel building method |
-
2008
- 2008-09-05 CN CN2008102160599A patent/CN101668339B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5848180A (en) * | 1996-07-01 | 1998-12-08 | Xerox Corporation | Color bitmap generation with background dependent black objects |
| CN1694081A (en) * | 2005-05-31 | 2005-11-09 | 清华大学 | Implementing method of virtual intelligent controller in SAN system |
| CN1801957A (en) * | 2005-07-18 | 2006-07-12 | 华为技术有限公司 | Reverse channel building method |
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| CN101668339A (en) | 2010-03-10 |
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Effective date of registration: 20180119 Address after: Mudu Wuzhong District Jin Feng Road Suzhou city Jiangsu province 215101 No. 1258 building 10 room 6019 Patentee after: SUZHOU SHIWAN YINGHE PRECISION MACHINERY CO., LTD. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: Huawei Technologies Co., Ltd. |
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