CN102487512B - Interference control method and device - Google Patents
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- CN102487512B CN102487512B CN201010578334.9A CN201010578334A CN102487512B CN 102487512 B CN102487512 B CN 102487512B CN 201010578334 A CN201010578334 A CN 201010578334A CN 102487512 B CN102487512 B CN 102487512B
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 12
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Abstract
The invention discloses an interference control method and device. The method comprises the following steps of: determining subframes of a neighbor cell for transmitting a packet broadcast channel (PBCH) and a synchronous channel (SS) respectively; and processing the determined subframes respectively: determining resource blocks (RBs) corresponding to the RBs occupied by the PBCH and SS of the neighbor cell in the system bandwidth of a cell and reducing the dispatching priorities or transmitting powers of the corresponding RBs to be lower than the dispatching priorities or transmitting powers of the RBs except the corresponding RBs, or processing the determined subframes respectively: determining orthogonal frequency division multiplexing (OFDM) symbols corresponding to the OFDM symbols occupied by the PBCH and SS of the neighbor cell in all the OFDM symbols occupied by the cell and reducing the transmitting powers of the corresponding OFDM symbols to be lower than the transmitting powers of the OFDM symbols except the corresponding OFDM symbols. The properties of the PBCH and SS can be improved by applying the method and the device.
Description
Technical field
The present invention relates to mobile communication technology, particularly interference control method and device.
Background technology
At present, two kinds of networking modes below main employing in Long Term Evolution (LTE) system: the networking mode that the networking mode that frequency duplex factor as one is N and frequency duplex factor as one are 1, N is greater than 1 positive integer.
In the first networking mode, total available bandwidth of system is divided into N subband, and pairwise orthogonal, N different community takies respectively N different subband.
Fig. 1 is that existing frequency duplex factor as one is the networking mode schematic diagram of N.As shown in Figure 1, suppose that total available bandwidth is 60MHz, be divided into 3 subbands (value that is N is 3), each subband is 20MHz (the system bandwidth of 3 communities is 20MHz), and pairwise orthogonal between 3 subbands, community A, community B and community C take respectively different subbands.
In the second networking mode, total available bandwidth not to be divided, different communities all takies total available bandwidth.
Fig. 2 is that existing frequency duplex factor as one is 1 networking mode schematic diagram.As shown in Figure 2, suppose that total available bandwidth is 20MHz, community A, community B and community C all take the bandwidth of this 20MHz.
For the first networking mode, due to the subband pairwise orthogonal that each community takies, therefore the interference of minizone is less, but bandwidth availability ratio under this networking mode is lower.For the second networking mode, although can improve bandwidth availability ratio, the interference of minizone is larger, particularly disturbs particularly serious for edge customer.
For the problems referred to above, another networking mode is proposed again, i.e. the networking mode of frequency shift channeling in prior art.
In this networking mode, total available bandwidth is divided into N subband, N is greater than 1 positive integer, pairwise orthogonal or have lap between N subband, and have at least between two subbands and have lap; For each subband, calculate respectively the correlation between itself and other subband, the correlation mentioned here, refers to that two laps between subband account for the ratio of the bandwidth sum of two subbands, lap between two subbands is more, and the correlation between them is larger; Give adjacent community by allocation of subbands less correlation, give community relatively far apart by allocation of subbands larger correlation.
Fig. 3 is the networking mode schematic diagram of existing frequency shift channeling.As shown in Figure 3, suppose that total available bandwidth is 22.16MHz, be divided into 3 subbands (value that is N is 3), each subband is 20MHz, and all have between any two lap, community A, community B and community C take respectively different subbands.
Can find out, than two kinds of networking modes before, this networking mode has taken into full account interference and these two factors of bandwidth availability ratio of minizone, neither can cause the interference of minizone excessive, also can not cause bandwidth availability ratio too low.But also can there is in actual applications certain problem in this mode.
Fig. 4 is the down channel schematic diagram of the community of networking mode Xia Ge shown in Fig. 3.As shown in Figure 4, broadcast channel (PBCH) takies the middle 1.08MHz frequency band (oblique line filling part) of system bandwidth of each community, Physical Downlink Shared Channel (PDSCH) takies all the other frequency bands (not filling part), or, synchronizing channel (SS) takies this 1.08MHz frequency band, PDSCH channel still takies all the other frequency bands, and broadcast channel and synchronizing channel send in different subframes conventionally; Can find out, the frequency band pairwise orthogonal that the broadcast channel of 3 communities and synchronizing channel take, for any one community as the synchronizing channel of community A and broadcast channel, in the time that the load of community C is lighter, its PDSCH channel seldom sends, the interference meeting of the minizone that the broadcast channel of community A and synchronizing channel are subject to is so very little, but, if the load of community C is heavier, its PDSCH channel continues to send, broadcast channel and the synchronizing channel of Ze Huidui community A cause serious interference, thereby affect the performance of broadcast channel and synchronizing channel.
Summary of the invention
In view of this, main purpose of the present invention is to provide two kinds of interference control methods, can improve the performance of broadcast channel and synchronizing channel.
Another object of the present invention is to provide two kinds of interference control device, can improve the performance of broadcast channel and synchronizing channel.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of interference control method, comprising:
Determine that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
Each subframe of determining, carry out respectively following processing: determine RB corresponding to Resource Block RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of this community, the dispatching priority of the RB of described correspondence or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond the RB of described correspondence.
A kind of interference control method, comprising:
Determine that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
Each subframe of determining, carry out respectively following processing: determine OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all orthogonal frequency division multiplex OFDM symbols that this community takies, the transmitting power of the OFDM symbol of described correspondence is reduced to the transmitting power lower than the OFDM symbol beyond the OFDM symbol of described correspondence.
A kind of control device that disturbs, comprising:
The first processing unit, for determining that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
The second processing unit, for each subframe of determining, carry out respectively following processing: determine RB corresponding to Resource Block RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of this community, the dispatching priority of the RB of described correspondence or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond the RB of described correspondence.
A kind of control device that disturbs, comprising:
The first processing unit, for determining that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
The second processing unit, for each subframe of determining, carry out respectively following processing: determine OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all orthogonal frequency division multiplex OFDM symbols that this community takies, the transmitting power of the OFDM symbol of described correspondence is reduced to the transmitting power lower than the OFDM symbol beyond the OFDM symbol of described correspondence.
Visible, adopt technical scheme of the present invention, may reduce dispatching priority or the transmitting power of the RB of broadcast channel and synchronizing channel generation interference, or may reduce the transmitting power of the OFDM symbol of broadcast channel and synchronizing channel generation interference, thereby reduce the interference to broadcast channel and synchronizing channel, improved the performance of broadcast channel and synchronizing channel.
Brief description of the drawings
Fig. 1 is that existing frequency duplex factor as one is the networking mode schematic diagram of N.
Fig. 2 is that existing frequency duplex factor as one is 1 networking mode schematic diagram.
Fig. 3 is the networking mode schematic diagram of existing frequency shift channeling.
Fig. 4 is the down channel schematic diagram of the community of networking mode Xia Ge shown in Fig. 3.
Fig. 5 is the flow chart of the inventive method the first embodiment.
Fig. 6 is the flow chart of the inventive method the second embodiment.
Fig. 7 is the composition structural representation of apparatus of the present invention embodiment.
Embodiment
For problems of the prior art, a kind of brand-new interference control program is proposed in the present invention, may be to dispatching priority or the transmitting power of the Resource Block (RB) of broadcast channel and synchronizing channel generation interference by reducing, or reduce and may, to the transmitting power of OFDM (OFDM) symbol of broadcast channel and synchronizing channel generation interference, reach the object of the performance that improves broadcast channel and synchronizing channel.
For make technical scheme of the present invention clearer, understand, referring to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
Fig. 5 is the flow chart of the inventive method the first embodiment.As shown in Figure 5, comprise the following steps:
Step 51: determine that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel.
Adjacent cell in scheme of the present invention typically refers to the adjacent cell that the physical location of Yu Zhe community relatively approaches.
In this step, according to pre-configured, determine that whether the time of network Zhong Ge community transmission broadcast channel is synchronous, whether the broadcast channel of Ji Ge community sends in identical subframe, if so, Ze Jiangzhe community sends the subframe of broadcast channel as the subframe of adjacent cell transmission broadcast channel; Otherwise, the time (as shifted to an earlier date or delaying how many milliseconds) that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send broadcast channel differs, extrapolate the subframe that adjacent cell sends broadcast channel, or, by carrying out information interaction with adjacent cell, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of broadcast channel differs, and extrapolate adjacent cell and send the subframe of broadcast channel, or, the information of directly obtaining the subframe of its transmission broadcast channel from adjacent cell, this information typically refers to subframe numbers.
Conventionally, whether synchronous this information of time that network Zhong Ge community sends broadcast channel is bound to configure, but adjacent cell Yu Zhe community sends the possible configuration of this information of time that the subframe of broadcast channel differs, and also may not configure.
Equally, for synchronizing channel, according to pre-configured, determine that whether the time of network Zhong Ge community transmission synchronizing channel is synchronous, if so, Ze Jiangzhe community sends the subframe of synchronizing channel as the subframe of adjacent cell transmission synchronizing channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send synchronizing channel differs, extrapolate the subframe that adjacent cell sends synchronizing channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of synchronizing channel differs, and extrapolate adjacent cell and send the subframe of synchronizing channel, or, directly obtain it and send the information of the subframe of synchronizing channel from adjacent cell.
Step 52: each subframe of determining, carry out respectively following processing: determine RB corresponding to RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of this community, the dispatching priority of corresponding RB or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond corresponding RB.
For each community, the center frequency point of its adjacent cell is all known, and broadcast channel and synchronizing channel have the advantages that fixedly take the middle 1.08MHz frequency band of system bandwidth, can determine so the broadcast channel of adjacent cell and RB place frequency band that synchronizing channel takies, using with the frequency band of determining with RB frequently as corresponding RB.Described with frequently referring to that frequency band is completely overlapping or partly overlapping.
Afterwards, the dispatching priority of corresponding RB is reduced to the dispatching priority lower than other RB, after other RB has been scheduled, then dispatches corresponding RB; Or, the transmitting power of corresponding RB is reduced to the transmitting power lower than other RB, be even reduced to 0, do not use corresponding RB.
Can find out, in the present embodiment, may produce dispatching priority or the transmitting power reduction of the RB disturbing to broadcast channel and synchronizing channel, thereby reduce the interference to broadcast channel and synchronizing channel, and then improve the performance of broadcast channel and synchronizing channel.
Fig. 6 is the flow chart of the inventive method the second embodiment.As shown in Figure 6, comprise the following steps:
Step 61: determine that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel.
The specific implementation of this step is identical with step 51, repeats no more.
Step 62: each subframe of determining, carry out respectively following processing: determine OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all OFDM symbols that this community takies, the transmitting power of corresponding OFDM symbol is reduced to the transmitting power lower than the OFDM symbol beyond corresponding OFDM symbol.
The position of the OFDM symbol that the broadcast channel of each community and synchronizing channel take is all identical, that is to say, the position of the OFDM symbol that the broadcast channel of adjacent cell and synchronizing channel take is known, is corresponding OFDM symbol so in the OFDM of same position symbol.
Afterwards, the transmitting power of corresponding OFDM symbol can be reduced to the transmitting power lower than other OFDM symbol, even be reduced to 0.
Can find out, in the present embodiment, more fine granularity ground, may reduce the transmitting power of the OFDM symbol of broadcast channel and synchronizing channel generation interference, thereby reduce the interference to broadcast channel and synchronizing channel, and then improved the performance of broadcast channel and synchronizing channel.
Based on above-mentioned introduction, Fig. 7 is the composition structural representation of apparatus of the present invention embodiment.As shown in Figure 7, comprising:
The first processing unit 71, for determining that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
The second processing unit 72, for each subframe of determining, carry out respectively following processing: determine RB corresponding to RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of this community, the dispatching priority of corresponding RB or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond corresponding RB.
Wherein, in the second processing unit 72, can specifically comprise:
First processes subelement 721, for utilizing the center frequency point of known adjacent cell, and broadcast channel and synchronizing channel take the feature of the 1.08MHz frequency band in the middle of system bandwidth, determine the broadcast channel of adjacent cell and RB place frequency band that synchronizing channel takies, using with the frequency band of determining with RB frequently as corresponding RB;
Second processes subelement 722, for the dispatching priority of corresponding RB or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond corresponding RB.
Or,
The first processing unit 71, for determining that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
The second processing unit 72, for each subframe of determining, carry out respectively following processing: determine OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all OFDM symbols that this community takies, the transmitting power of corresponding OFDM symbol is reduced to the transmitting power lower than the OFDM symbol beyond corresponding OFDM symbol.
Wherein, in the second processing unit 72, can specifically comprise:
First process subelement 721, for utilizing the position of the broadcast channel of known adjacent cell and the OFDM symbol that synchronizing channel takies, in all OFDM symbols that Jiang Zhe community takies in the OFDM of same position symbol as corresponding OFDM symbol;
Second processes subelement 722, for the transmitting power of corresponding OFDM symbol being reduced to the transmitting power lower than the OFDM symbol beyond corresponding OFDM symbol.
The specific works flow process of Fig. 7 shown device embodiment please refer to the respective description in embodiment of the method shown in Fig. 5 and 6, repeats no more herein.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (8)
1. an interference control method, is characterized in that, comprising:
Determine that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
Each subframe of determining, carry out respectively following processing: determine RB corresponding to Resource Block RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of this community, the dispatching priority of the RB of described correspondence or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond the RB of described correspondence;
Wherein, the subframe that described definite adjacent cell sends broadcast channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission broadcast channel is synchronous, if so, Ze Jiangzhe community sends the subframe of broadcast channel as the subframe of adjacent cell transmission broadcast channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send broadcast channel differs, extrapolate the subframe that adjacent cell sends broadcast channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of broadcast channel differs, and extrapolate adjacent cell and send the subframe of broadcast channel, or, directly obtain it and send the information of the subframe of broadcast channel from adjacent cell;
The subframe that described definite adjacent cell sends synchronizing channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission synchronizing channel is synchronous, if so, Ze Jiangzhe community sends the subframe of synchronizing channel as the subframe of adjacent cell transmission synchronizing channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send synchronizing channel differs, extrapolate the subframe that adjacent cell sends synchronizing channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of synchronizing channel differs, and extrapolate adjacent cell and send the subframe of synchronizing channel, or, directly obtain it and send the information of the subframe of synchronizing channel from adjacent cell.
2. method according to claim 1, is characterized in that, RB corresponding to RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of described definite this community comprises:
Utilize the center frequency point of known adjacent cell, and broadcast channel and synchronizing channel take the feature of the 1.08MHz frequency band in the middle of system bandwidth, determine the broadcast channel of adjacent cell and RB place frequency band that synchronizing channel takies, using with the frequency band of determining with RB frequently as corresponding RB.
3. an interference control method, is characterized in that, comprising:
Determine that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
Each subframe of determining, carry out respectively following processing: determine OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all orthogonal frequency division multiplex OFDM symbols that this community takies, the transmitting power of the OFDM symbol of described correspondence is reduced to the transmitting power lower than the OFDM symbol beyond the OFDM symbol of described correspondence;
Wherein, the subframe that described definite adjacent cell sends broadcast channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission broadcast channel is synchronous, if so, Ze Jiangzhe community sends the subframe of broadcast channel as the subframe of adjacent cell transmission broadcast channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send broadcast channel differs, extrapolate the subframe that adjacent cell sends broadcast channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of broadcast channel differs, and extrapolate adjacent cell and send the subframe of broadcast channel, or, directly obtain it and send the information of the subframe of broadcast channel from adjacent cell;
The subframe that described definite adjacent cell sends synchronizing channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission synchronizing channel is synchronous, if so, Ze Jiangzhe community sends the subframe of synchronizing channel as the subframe of adjacent cell transmission synchronizing channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send synchronizing channel differs, extrapolate the subframe that adjacent cell sends synchronizing channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of synchronizing channel differs, and extrapolate adjacent cell and send the subframe of synchronizing channel, or, directly obtain it and send the information of the subframe of synchronizing channel from adjacent cell.
4. method according to claim 3, is characterized in that, OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all OFDM symbols that described definite this community takies comprises:
Utilize the position of the broadcast channel of known adjacent cell and the OFDM symbol that synchronizing channel takies, in all OFDM symbols that Jiang Zhe community takies in the OFDM of same position symbol as corresponding OFDM symbol.
5. an interference control device, is characterized in that, comprising:
The first processing unit, for determining that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
Wherein, the subframe that described definite adjacent cell sends broadcast channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission broadcast channel is synchronous, if so, Ze Jiangzhe community sends the subframe of broadcast channel as the subframe of adjacent cell transmission broadcast channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send broadcast channel differs, extrapolate the subframe that adjacent cell sends broadcast channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of broadcast channel differs, and extrapolate adjacent cell and send the subframe of broadcast channel, or, directly obtain it and send the information of the subframe of broadcast channel from adjacent cell;
The subframe that described definite adjacent cell sends synchronizing channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission synchronizing channel is synchronous, if so, Ze Jiangzhe community sends the subframe of synchronizing channel as the subframe of adjacent cell transmission synchronizing channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send synchronizing channel differs, extrapolate the subframe that adjacent cell sends synchronizing channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of synchronizing channel differs, and extrapolate adjacent cell and send the subframe of synchronizing channel, or, directly obtain it and send the information of the subframe of synchronizing channel from adjacent cell;
The second processing unit, for each subframe of determining, carry out respectively following processing: determine RB corresponding to Resource Block RB taking with broadcast channel and the synchronizing channel of adjacent cell in the system bandwidth of this community, the dispatching priority of the RB of described correspondence or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond the RB of described correspondence.
6. device according to claim 5, is characterized in that, described the second processing unit comprises:
First processes subelement, for utilizing the center frequency point of known adjacent cell, and broadcast channel and synchronizing channel take the feature of the 1.08MHz frequency band in the middle of system bandwidth, determine the broadcast channel of adjacent cell and RB place frequency band that synchronizing channel takies, using with the frequency band of determining with RB frequently as corresponding RB;
Second processes subelement, for the dispatching priority of the RB of described correspondence or transmitting power are reduced to dispatching priority or the transmitting power lower than the RB beyond the RB of described correspondence.
7. an interference control device, is characterized in that, comprising:
The first processing unit, for determining that respectively adjacent cell sends the subframe of broadcast channel and synchronizing channel;
Wherein, the subframe that described definite adjacent cell sends broadcast channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission broadcast channel is synchronous, if so, Ze Jiangzhe community sends the subframe of broadcast channel as the subframe of adjacent cell transmission broadcast channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send broadcast channel differs, extrapolate the subframe that adjacent cell sends broadcast channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of broadcast channel differs, and extrapolate adjacent cell and send the subframe of broadcast channel, or, directly obtain it and send the information of the subframe of broadcast channel from adjacent cell;
The subframe that described definite adjacent cell sends synchronizing channel comprises:
According to pre-configured, determine that whether the time of network Zhong Ge community transmission synchronizing channel is synchronous, if so, Ze Jiangzhe community sends the subframe of synchronizing channel as the subframe of adjacent cell transmission synchronizing channel; Otherwise, the time that the subframe of utilizing pre-configured adjacent cell Yu Zhe community to send synchronizing channel differs, extrapolate the subframe that adjacent cell sends synchronizing channel, or, obtain Qi Yuzhe community from adjacent cell and send the time that the subframe of synchronizing channel differs, and extrapolate adjacent cell and send the subframe of synchronizing channel, or, directly obtain it and send the information of the subframe of synchronizing channel from adjacent cell;
The second processing unit, for each subframe of determining, carry out respectively following processing: determine OFDM symbol corresponding to OFDM symbol taking with broadcast channel and the synchronizing channel of adjacent cell in all orthogonal frequency division multiplex OFDM symbols that this community takies, the transmitting power of the OFDM symbol of described correspondence is reduced to the transmitting power lower than the OFDM symbol beyond the OFDM symbol of described correspondence.
8. device according to claim 7, is characterized in that, described the second processing unit comprises:
First process subelement, for utilizing the position of the broadcast channel of known adjacent cell and the OFDM symbol that synchronizing channel takies, in all OFDM symbols that Jiang Zhe community takies in the OFDM of same position symbol as corresponding OFDM symbol;
Second processes subelement, for the transmitting power of the OFDM symbol of described correspondence being reduced to the transmitting power lower than the OFDM symbol beyond the OFDM symbol of described correspondence.
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| CN112187696B (en) * | 2020-10-26 | 2021-12-28 | 上海交通大学 | Frame signal transmission method and system |
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| CN101102140A (en) * | 2007-08-13 | 2008-01-09 | 中兴通讯股份有限公司 | Distributed resource mapping method |
| CN101588590A (en) * | 2008-05-20 | 2009-11-25 | ***通信集团公司 | Method and device for estimating channel quality of uplink data channels |
| CN101772176A (en) * | 2008-12-30 | 2010-07-07 | 大唐移动通信设备有限公司 | Interference coordination method and access network device |
| CN101827383A (en) * | 2009-03-06 | 2010-09-08 | 大唐移动通信设备有限公司 | Method and base station for predicting time-frequency resources |
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| US8442069B2 (en) * | 2008-04-14 | 2013-05-14 | Qualcomm Incorporated | System and method to enable uplink control for restricted association networks |
| CN101296513B (en) * | 2008-04-22 | 2013-05-08 | 中兴通讯股份有限公司 | Method for randomizing physical ascending control channel interference |
| CN101841851B (en) * | 2009-03-18 | 2013-06-12 | 电信科学技术研究院 | Method and device for multi-cell data transmission |
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| CN101102140A (en) * | 2007-08-13 | 2008-01-09 | 中兴通讯股份有限公司 | Distributed resource mapping method |
| CN101588590A (en) * | 2008-05-20 | 2009-11-25 | ***通信集团公司 | Method and device for estimating channel quality of uplink data channels |
| CN101772176A (en) * | 2008-12-30 | 2010-07-07 | 大唐移动通信设备有限公司 | Interference coordination method and access network device |
| CN101827383A (en) * | 2009-03-06 | 2010-09-08 | 大唐移动通信设备有限公司 | Method and base station for predicting time-frequency resources |
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