CN106912058B - Channel interference coordination method and device - Google Patents
Channel interference coordination method and device Download PDFInfo
- Publication number
- CN106912058B CN106912058B CN201710291651.4A CN201710291651A CN106912058B CN 106912058 B CN106912058 B CN 106912058B CN 201710291651 A CN201710291651 A CN 201710291651A CN 106912058 B CN106912058 B CN 106912058B
- Authority
- CN
- China
- Prior art keywords
- band
- edge
- sub
- bands
- orthogonal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000001228 spectrum Methods 0.000 claims abstract description 41
- 230000001360 synchronised effect Effects 0.000 claims abstract description 34
- 230000005540 biological transmission Effects 0.000 claims description 41
- 230000006855 networking Effects 0.000 abstract description 6
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000013507 mapping Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/12—Fixed resource partitioning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/28—TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non transmission
- H04W52/283—Power depending on the position of the mobile
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/322—Power control of broadcast channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
According to the channel interference coordination method and device, edge frequency bands are divided for the synchronous sub-band, the common sub-band and the unauthorized spectrum sensing sub-band respectively, the edge frequency bands of any two adjacent cells are orthogonal, namely the edge frequency bands used by any two adjacent cells are different for the synchronous sub-band, the common sub-band or the unauthorized spectrum sensing sub-band. Non-overlapping edge frequency bands are planned for adjacent same-frequency cells to the maximum extent, and therefore the channel anti-interference capability of a broadband access system is improved under the same-frequency networking scene.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for channel interference coordination.
Background
In a broadband access system, the system broadband is divided into a plurality of contiguous or non-contiguous subbands. Each sub-band is transmitted by using an OFDM (Orthogonal Frequency Division Multiplexing) technique. The sub-bands are divided into synchronous sub-bands and normal self-bands according to functions. The main function of the synchronous sub-band is the uplink and downlink synchronous and broadcast channels, and the common sub-band is used for normal service transmission.
To reduce cost and implementation complexity, a UE (User Equipment) supports a single subband operation mode, i.e., the UE may operate on only a single subband. Thus, the requirement for UE receiver bandwidth is reduced, and the system requirement for hardware capability is also reduced. A typical application scenario is a power load monitoring communication network, frequency spectrums of the power load monitoring communication network are discretely distributed in a 230M frequency band, the bandwidth of the power load monitoring communication network is 8.15MHz, 40 25kHz sub-bands are shared, the sub-band of the lowest frequency point is 223.525MHz, and the sub-band of the highest frequency point is 231.65 MHz. The distribution of the 230MHz frequency resources of the power load monitoring communication network is shown in fig. 1.
In a broadband access system based on TD-L TE, in order to support the UE to work in a single subband working mode, the system has the following characteristics that a synchronous subband is a discrete single subband, a downlink control channel PDCCH must be independently transmitted on each common subband, a subband in which the UE monitors the PDCCH is called an access subband or a resident subband of the UE, downlink resources in the single subband working mode are limited, PDCCH and PDSCH channels are subjected to time division multiplexing transmission, and a mapping chart of the downlink channel resources is shown in figure 2.
A broadband access system can expand available bandwidth by spectrum sensing function to increase system capacity, and usually a frequency band range which can be sensed is planned in advance. The expanded unauthorized bandwidth can be used for normal service transmission by the system when the system is idle, and can be immediately quitted from use once the use of other systems or strong interference is detected.
However, the UE is supported to work in a broadband access system in a single subband mode, transmission performance of various channels may be affected, especially in a same-frequency networking scenario, uplink and downlink resources of a single subband are limited, resource mapping patterns and modulation coding modes of control channels (such as PDCCH, PCFICH, PHICH, PUCCH) and broadcast and synchronization channels are fixed, resistance of the control channels to same-frequency interference is difficult, and transmission performance of edge users in a coverage area of multiple cells is difficult to guarantee.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for coordinating channel interference, which are intended to improve the channel interference resistance of a broadband access system in a same-frequency networking scenario.
In order to achieve the above object, the following solutions are proposed:
a method of channel interference coordination, comprising:
dividing edge frequency bands of the synchronous sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
dividing edge frequency bands of the common sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
and carrying out edge frequency band division on the unauthorized spectrum sensing sub-band, wherein the edge frequency bands of any two adjacent cells are orthogonal.
Preferably, the edge band division is performed on the ordinary sub-bands, and the edge band orthogonality between any two adjacent cells specifically includes: performing soft frequency multiplexing division on the common frequency band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal;
the edge frequency band division is performed on the synchronous sub-bands, and the edge frequency bands of any two adjacent cells are orthogonal, specifically: performing soft frequency multiplexing division on the synchronous frequency band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal;
dividing edge frequency bands of the unauthorized spectrum sensing sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal, and the method specifically comprises the following steps: and performing soft frequency multiplexing division on the unlicensed spectrum sensing sub-band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal.
Preferably, the method further comprises: for the downlink channel of the normal sub-band,
setting the power of a PDCCH channel to be higher than that of a PDSCH channel;
distributing the transmitting power higher than that of the central user to the edge user at the time of normal service transmission;
and allocating the transmission power higher than that of the central sub-band for the edge frequency band at the DRX paging time or the broadcast updating message time.
Preferably, the method further comprises: and for the downlink channel of the synchronous sub-band, distributing the transmitting power higher than that of the central sub-band for the edge frequency band.
Preferably, the method further comprises: and for the downlink channel of the unlicensed spectrum sensing sub-band, distributing the transmission power higher than that of the central user to the edge user.
A channel interference coordination apparatus, comprising:
the first frequency band dividing unit is used for carrying out edge frequency band division on the synchronous sub-bands, and the edge frequency bands of any two adjacent cells are orthogonal;
the second frequency band dividing unit is used for carrying out edge frequency band division on the common sub-band, and the edge frequency bands of any two adjacent cells are orthogonal;
and the third frequency band dividing unit is used for carrying out edge frequency band division on the unauthorized spectrum sensing sub-band, and the edge frequency bands of any two adjacent cells are orthogonal.
Preferably, the first frequency band dividing unit is specifically configured to perform soft frequency multiplexing division on the synchronization frequency band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal;
the second frequency band dividing unit is specifically configured to perform soft frequency multiplexing division on the common frequency band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal;
the third frequency band dividing unit is specifically configured to perform soft frequency multiplexing division on the unlicensed spectrum sensing sub-band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal.
Preferably, the apparatus further comprises:
a first power allocation unit for allocating, for a downlink channel of the normal sub-band,
setting the power of a PDCCH channel to be higher than that of a PDSCH channel;
distributing the transmitting power higher than that of the central user to the edge user at the time of normal service transmission;
and allocating the transmission power higher than that of the central sub-band for the edge frequency band at the DRX paging time or the broadcast updating message time.
Preferably, the apparatus further comprises:
and the second power allocation unit is used for allocating the sending power higher than that of the central sub-band for the edge frequency band of the downlink channel of the synchronous sub-band.
Preferably, the apparatus further comprises:
and the third power allocation unit is used for allocating the sending power higher than that of the central user to the edge user for the downlink channel of the unlicensed spectrum sensing sub-band.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the channel interference coordination method and device provided by the technical scheme, the synchronous sub-band, the common sub-band and the unauthorized spectrum sensing sub-band are divided into the edge frequency bands, the edge frequency bands of any two adjacent cells are orthogonal, namely the edge frequency bands used by any two adjacent cells are different for the synchronous sub-band, the common sub-band and the unauthorized spectrum sensing sub-band. Non-overlapping edge frequency bands are planned for adjacent same-frequency cells to the maximum extent, and therefore the channel anti-interference capability of a broadband access system is improved under the same-frequency networking scene.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of frequency resource distribution in a 230MHz frequency band of a power grid;
fig. 2 is a downlink channel resource map;
fig. 3 is a flowchart of a channel interference coordination method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a channel interference coordination apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of another channel interference coordination apparatus according to an embodiment of the present invention;
fig. 6 is a schematic diagram of another channel interference coordination apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram of another channel interference coordination apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present embodiment provides a channel interference coordination method, as shown in fig. 3, the method includes:
step S11: dividing edge frequency bands of the synchronous sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
the synchronization subband is used for broadcast and transmission of synchronization signals. And the UE is started to search a cell, perform downlink synchronization and periodically measure a broadcast signal of a synchronous subband. For the synchronous sub-band interference coordination, an edge frequency band division method can be adopted, so that the edge frequency bands of any two adjacent cells are orthogonal, that is, the edge frequency bands used by any two adjacent cells are different. The edge users of the cell use the edge frequency band, the interference is only from the interference of the center users of the adjacent cell, and the interference degree is suppressed.
Step S12: dividing edge frequency bands of the common sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
the common sub-band is used for normal service transmission, and for common sub-band interference coordination, a method of edge frequency band division can be adopted to enable the edge frequency bands of any two adjacent cells to be orthogonal. The normal sub-band is also used for receiving PDCCH, PCFICH, PHICH or transmitting PUCCH under the condition that the UE supports the single sub-band working mode, and is used for user uplink scheduling request. The division of the edge frequency band can improve the transmission accuracy of the control channel of the user working in the edge frequency band, and is beneficial to improving the throughput of the edge user.
Step S13: and carrying out edge frequency band division on the unauthorized spectrum sensing sub-band, wherein the edge frequency bands of any two adjacent cells are orthogonal.
The unauthorized spectrum sensing sub-band does not belong to the authorized sub-band of the system, is a temporary usable resource sensed by the spectrum sensing function, and stops using the unauthorized spectrum sensing sub-band if other systems are detected to be used or the system is strongly interfered during use. The unlicensed spectrum sensing sub-band is used for normal service transmission of a service channel and a corresponding control channel, and is an extension of a common sub-band licensed by a system. The unlicensed spectrum sensing sub-band is lower in priority than the licensed sub-band of the system in use, and the available time is uncertain, so that edge band division is separately required. The authorized sub-bands (namely common sub-bands and synchronous sub-bands) of the system are a plurality of sub-bands which are distributed discretely, and the relative position distribution of the authorized sub-bands and the unauthorized spectrum sensing sub-bands obtained by sensing is irregular, so that the edge frequency band division of the unauthorized spectrum sensing sub-bands is carried out independently, the condition that the sub-bands of the system means of the system are divided to the same-frequency cells unevenly can be avoided, and the edge users of all the cells can work normally even if the unauthorized spectrum sensing sub-bands are not provided.
In the channel interference coordination method provided in this embodiment, edge frequency bands are divided for a synchronous subband, a normal subband, and an unlicensed spectrum sensing subband, and edge frequency bands of any two adjacent cells are orthogonal, that is, for the synchronous subband, the normal subband, or the unlicensed spectrum sensing subband, edge frequency bands used by any two adjacent cells are different. Non-overlapping edge frequency bands are planned for adjacent same-frequency cells to the maximum extent, and therefore the channel anti-interference capability of a broadband access system is improved under the same-frequency networking scene.
According to different carried channels, different completed functions and different importance of transmitted information, the available broadband of the system is divided into three categories:
(1) the normal sub-band authorized by the system is also the sub-band where the user can reside, and is used for the transmission of normal service. The common sub-band can be further divided into two parts, one part is the normal service transmission time, and the other part is the DRX paging and broadcast updating message time;
(2) a system-granted synchronization subband for broadcast and transmission of synchronization signals;
(3) and the unlicensed spectrum sensing sub-band, namely the temporary available sub-band which is not licensed by the system and sensed by the spectrum sensing function, is used for normal traffic transmission.
Under the same-frequency networking, each cell can use all the broadband. According to a certain proportion, the frequency band available for the system is divided into the edge frequency band of the cell and the central frequency band of the cell. The edge bands of the pass frequency cells do not overlap. The edge users of the cell use the edge band and the center users can use the full band.
The embodiment divides the edge frequency bands for the common sub-band, the synchronous sub-band and the unauthorized spectrum sensing sub-band respectively, plans non-overlapping edge frequency bands for adjacent co-frequency cells to the maximum extent, and improves the transmission performance of edge users.
Performing edge frequency band division on the common sub-band, specifically: and carrying out soft frequency multiplexing division on the common frequency band, wherein the cell edge multiplexing factor is 3, and the cell center multiplexing factor is 1. The edge frequency band is used by the edge user of the cell, and the edge frequency band used by any adjacent cell is orthogonal, so that the interference received by the edge user of the cell only comes from the interference of the center user of the adjacent cell, and the interference degree is inhibited. According to the static division or dynamic division of the frequency band, the edge frequency band of the cell can be divided into different broadband. For static division, the edge frequency band of the cell occupies 1/3 of the system broadband at most; for dynamic division, adaptive allocation can be performed according to the edge user load condition of a specific cell, and the smaller the number of edge users, i.e., the lower the load, the less the required cell edge frequency band, so the number of edge frequency bands is increased or divided correspondingly by counting the increase or decrease of the number of cell edge users. The dynamic division makes the broadband division more flexible, as long as the orthogonality between the cell edge frequency bands is ensured.
For the downlink channel of the common sub-band, the base station allocates the transmission power, and can also perform interference coordination by combining the power allocation. For the case that the UE supports the single subband operating mode, the PDSCH and PDCCH channels are time division multiplexed, which causes large interference between the PDSCH channels and the PDCCH channels in addition to between the PDSCH channels and between the PDCCH channels. Because the PDCCH is used as a control channel and has higher requirements on the block error rate, the power of the PDCCH is set to be higher than that of the PDSCH, and the performance of the control channel is preferentially ensured. In addition, the power allocation mechanism distinguishes between normal traffic transmission times, and DRX paging and broadcast message update times, due to the different user groups that are targeted.
And distributing the transmitting power higher than that of the central user to the edge user at the time of normal service transmission. By setting the power ratio ρ of PDSCH/PDCCH data symbols relative to reference symbolsATo coordinate power allocation among different users. Setting different rho for cell center user and edge userAThe value is to increase the transmission power of the edge user appropriately based on the band division. Such as rhoA_CCU/ρA_CEUλ ∈ (0,1), where λ is available, where ρ isA_CCUIs the power ratio, rho, of the cell center user data symbols to the reference symbolsA_CEUIs the power ratio of the data symbols of the users at the edge of the cell relative to the reference symbols, and is configured to the users by the base station semi-statically through RRC signaling. For the PCFICH and PHICH channels, the transmission code rate is particularly low, the demodulation performance is better, fixed and higher power transmission can be adopted, and the above power allocation mechanism for users can also be adopted, depending on the actual situation of the system.
And allocating the transmission power higher than that of the central sub-band for the edge frequency band at the DRX paging time or the broadcast updating message time. The system periodically transmits DRX paging or broadcast update messages on each subband, targeting all users residing on that subband, and thus cannot allocate different power for user types. When the downlink channel is used for carrying the DRX paging or broadcast update message, a fixed modulation and coding scheme is adopted, and the transmission contents facing part of users or all users are the same, so different powers can be allocated according to the band type. The higher transmitting power can be adopted on the cell edge frequency band, the lower transmitting power is adopted on the cell center frequency band, the method is suitable for the interference coordination module to distribute the edge users to the edge sub-bands for residence, and the receiving performance of the edge users can be improved.
Performing edge frequency band division on the synchronous sub-band, specifically: and carrying out soft frequency multiplexing division on the synchronous frequency band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal. The edge division method of the synchronous sub-band is the same as the division method of the common sub-band. For the downlink channel of the ordinary sub-band, interference coordination can also be performed by combining power allocation, that is, the edge frequency band is allocated with the transmission power higher than that of the central sub-band. Broadcast and synchronous signal are sent to all UE of the cell, the sending power of the signal channel is fixed to all UE, the modulation coding mode adopts low-order QPSK to improve the detection performance; and when the UE carries out cell search and downlink synchronization after being started, the RSRP information is not measured and reported, and the UE is not known to be edge UE or central UE. In order to improve the receiving capability of users, especially for those edge UEs in the multi-cell coverage area, the base station allocates higher transmission power on the edge synchronization sub-band of the cell planned by the system relative to the center synchronization sub-band, for example, the ratio of the transmission power on the edge synchronization sub-band to the transmission power on the center synchronization sub-band is set, and the value can be determined by simulation. Thus, the user receives the synchronous signals of a plurality of synchronous sub-bands to complete the downlink synchronization, and selects the synchronous sub-band with the strongest receiving SINR of the broadcast signal to access the corresponding cell.
The edge frequency band division of the unlicensed spectrum sensing sub-band specifically includes: and carrying out soft frequency multiplexing division on the unauthorized frequency spectrum sensing sub-band, wherein the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1. The same edge frequency band division method as the authorized common sub-band is adopted for the unauthorized frequency spectrum sensing sub-band, so that the edge frequency bands of any two adjacent cells are orthogonal, the use of the unauthorized frequency spectrum sensing sub-band by different cells is integrally planned, and the interference received by edge users of each cell is reduced. Similarly, for the downlink channel of the ordinary sub-band, interference coordination can also be performed in combination with power allocation, that is, the edge user is allocated with the transmission power higher than that of the central user. And the same power distribution method is adopted for interference coordination with the common sub-band at the normal service transmission moment.
For simplicity of explanation, the foregoing method embodiments are described as a series of acts or combinations, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts or acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the invention.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
The present embodiment provides a channel interference coordination apparatus, as shown in fig. 4, the apparatus includes:
a first frequency band dividing unit 11, configured to perform edge frequency band division on a synchronization sub-band, where edge frequency bands of any two adjacent cells are orthogonal;
a second frequency band dividing unit 12, configured to perform edge frequency band division on a common sub-band, where edge frequency bands of any two adjacent cells are orthogonal;
and a third band dividing unit 13, configured to perform edge band division on the unlicensed spectrum sensing sub-band, where edge bands of any two adjacent cells are orthogonal.
Preferably, the first frequency band dividing unit 11 is specifically configured to perform soft frequency multiplexing division on the synchronization frequency band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal;
preferably, the second frequency band dividing unit 12 is specifically configured to perform soft frequency multiplexing division on the ordinary frequency band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal;
preferably, the third frequency band dividing unit 13 is specifically configured to perform soft frequency multiplexing division on the unlicensed spectrum sensing subband with a cell edge multiplexing factor of 3 and a cell center multiplexing factor of 1, where edge frequency bands of any two adjacent cells are orthogonal.
The present embodiment provides another channel interference coordination apparatus, and referring to fig. 5, the apparatus further includes:
a first power allocation unit 14, configured to allocate, for the downlink channel of the normal sub-band,
setting the power of a PDCCH channel to be higher than that of a PDSCH channel;
distributing the transmitting power higher than that of the central user to the edge user at the time of normal service transmission;
and allocating the transmission power higher than that of the central sub-band for the edge frequency band at the DRX paging time or the broadcast updating message time.
The present embodiment provides another channel interference coordination apparatus, and referring to fig. 6, the apparatus further includes:
and a second power allocating unit 15, configured to allocate, for the downlink channel of the synchronization sub-band, a higher transmit power than that of the central sub-band for the edge frequency band.
The present embodiment provides another channel interference coordination apparatus, and referring to fig. 7, the apparatus further includes:
a third power allocation unit 16, configured to allocate, for the downlink channel of the unlicensed spectrum sensing sub-band, a higher transmission power to the edge user than to the center user
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method for channel interference coordination, comprising:
dividing edge frequency bands of the synchronous sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
dividing edge frequency bands of the common sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
dividing edge frequency bands of the unauthorized spectrum sensing sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal;
further comprising: for the downlink channel of the normal sub-band,
setting the power of a PDCCH channel to be higher than that of a PDSCH channel;
distributing the transmitting power higher than that of the central user to the edge user at the time of normal service transmission;
and allocating the transmission power higher than that of the central sub-band for the edge frequency band at the DRX paging time or the broadcast updating message time.
2. The method of claim 1,
the edge frequency band division is performed on the ordinary sub-bands, and the edge frequency band orthogonality of any two adjacent cells specifically includes: performing soft frequency multiplexing division on the common frequency band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal;
the edge frequency band division is performed on the synchronous sub-bands, and the edge frequency bands of any two adjacent cells are orthogonal, specifically: performing soft frequency multiplexing division on the synchronous frequency band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal;
dividing edge frequency bands of the unauthorized spectrum sensing sub-bands, wherein the edge frequency bands of any two adjacent cells are orthogonal, and the method specifically comprises the following steps: and performing soft frequency multiplexing division on the unlicensed spectrum sensing sub-band, wherein the cell edge multiplexing factor is 3, the cell center multiplexing factor is 1, and the edge frequency bands of any two adjacent cells are orthogonal.
3. The method of claim 1, further comprising: and for the downlink channel of the synchronous sub-band, distributing the transmitting power higher than that of the central sub-band for the edge frequency band.
4. The method of claim 1, further comprising: and for the downlink channel of the unlicensed spectrum sensing sub-band, distributing the transmission power higher than that of the central user to the edge user.
5. A channel interference coordination device, comprising:
the first frequency band dividing unit is used for carrying out edge frequency band division on the synchronous sub-bands, and the edge frequency bands of any two adjacent cells are orthogonal;
the second frequency band dividing unit is used for carrying out edge frequency band division on the common sub-band, and the edge frequency bands of any two adjacent cells are orthogonal;
the third frequency band dividing unit is used for carrying out edge frequency band division on the unauthorized frequency spectrum sensing sub-band, and the edge frequency bands of any two adjacent cells are orthogonal;
further comprising:
a first power allocation unit for allocating, for a downlink channel of the normal sub-band,
setting the power of a PDCCH channel to be higher than that of a PDSCH channel;
distributing the transmitting power higher than that of the central user to the edge user at the time of normal service transmission;
and allocating the transmission power higher than that of the central sub-band for the edge frequency band at the DRX paging time or the broadcast updating message time.
6. The apparatus of claim 5,
the first frequency band dividing unit is specifically configured to perform soft frequency multiplexing division on the synchronization frequency band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal;
the second frequency band dividing unit is specifically configured to perform soft frequency multiplexing division on the common frequency band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal;
the third frequency band dividing unit is specifically configured to perform soft frequency multiplexing division on the unlicensed spectrum sensing sub-band, where the cell edge multiplexing factor is 3 and the cell center multiplexing factor is 1, and edge frequency bands of any two adjacent cells are orthogonal.
7. The apparatus of claim 5, further comprising:
and the second power allocation unit is used for allocating the sending power higher than that of the central sub-band for the edge frequency band of the downlink channel of the synchronous sub-band.
8. The apparatus of claim 5, further comprising:
and the third power allocation unit is used for allocating the sending power higher than that of the central user to the edge user for the downlink channel of the unlicensed spectrum sensing sub-band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291651.4A CN106912058B (en) | 2017-04-28 | 2017-04-28 | Channel interference coordination method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710291651.4A CN106912058B (en) | 2017-04-28 | 2017-04-28 | Channel interference coordination method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106912058A CN106912058A (en) | 2017-06-30 |
| CN106912058B true CN106912058B (en) | 2020-07-24 |
Family
ID=59210103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710291651.4A Active CN106912058B (en) | 2017-04-28 | 2017-04-28 | Channel interference coordination method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106912058B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787729B (en) * | 2017-11-14 | 2022-02-01 | 中国电信股份有限公司 | Resource multiplexing method, system and computer readable storage medium |
| CN110149176A (en) * | 2018-02-12 | 2019-08-20 | 普天信息技术有限公司 | A kind of multi-subband down control channel sending method and base station |
| CN109451588B (en) * | 2018-12-28 | 2023-05-26 | 北京智芯微电子科技有限公司 | Anti-interference method of communication system based on 230M frequency band |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1758419A1 (en) * | 2005-08-22 | 2007-02-28 | Samsung Electronics Co., Ltd. | Method for allocating resources in a wireless communication system |
| CN101827370A (en) * | 2009-03-05 | 2010-09-08 | 中国移动通信集团公司 | Frequency reuse control method, system and base station equipment based on OFDM (Orthogonal Frequency Division Multiplexing) |
| CN102857928A (en) * | 2011-06-29 | 2013-01-02 | 普天信息技术研究院有限公司 | Uplink interference coordination method |
| CN103227765A (en) * | 2011-03-25 | 2013-07-31 | 北京新岸线移动多媒体技术有限公司 | Data transmission method based on orthogonal frequency division multiplexing (OFDM) and transmitting station |
| CN103634803A (en) * | 2012-08-21 | 2014-03-12 | 普天信息技术研究院有限公司 | A method for reducing co-frequency interferences |
-
2017
- 2017-04-28 CN CN201710291651.4A patent/CN106912058B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1758419A1 (en) * | 2005-08-22 | 2007-02-28 | Samsung Electronics Co., Ltd. | Method for allocating resources in a wireless communication system |
| CN101827370A (en) * | 2009-03-05 | 2010-09-08 | 中国移动通信集团公司 | Frequency reuse control method, system and base station equipment based on OFDM (Orthogonal Frequency Division Multiplexing) |
| CN103227765A (en) * | 2011-03-25 | 2013-07-31 | 北京新岸线移动多媒体技术有限公司 | Data transmission method based on orthogonal frequency division multiplexing (OFDM) and transmitting station |
| CN102857928A (en) * | 2011-06-29 | 2013-01-02 | 普天信息技术研究院有限公司 | Uplink interference coordination method |
| CN103634803A (en) * | 2012-08-21 | 2014-03-12 | 普天信息技术研究院有限公司 | A method for reducing co-frequency interferences |
Non-Patent Citations (1)
| Title |
|---|
| 小区间干扰协调技术研究;张文俊等;《电信快报》;20141210;正文第1节 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106912058A (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11349629B2 (en) | Inserting virtual carrier in conventional OFDM host carrier in communications system | |
| US10863516B2 (en) | Communications device and method | |
| US10117238B2 (en) | Mobile communications system, network element and method for resource allocation on a virtual carrier for machine-type communications with a narrow band EPDCCH | |
| US9001717B2 (en) | Method and apparatus of transmitting and receiving signal in a distributed antenna system | |
| JP5976681B2 (en) | Insertion of virtual carrier into conventional OFDM host carrier in communication system | |
| US20170325232A1 (en) | Inserting virtual carrier in conventional ofdm host carrier in communications system | |
| US20100136989A1 (en) | Method and Radio Base Station for Effective Spectrum Utilization | |
| KR20130069532A (en) | Apparatus and method for allocating channel in communication system | |
| CN101873602B (en) | Interference suppression method of physical upstream control channel (PUCCH) in LTE (Long Term Evolution) system | |
| EP2869615B1 (en) | System, device and methods for dynamically triggered spectrum sensing in cognitive radio system | |
| US8923329B2 (en) | Apparatus and method for supporting various system bandwidths in a broadband wireless communication system | |
| CN106912058B (en) | Channel interference coordination method and device | |
| EP2398292B2 (en) | Coexistence method and device of multiple operating entity systems | |
| EP3352521A1 (en) | Channel access method, access point and site | |
| US10951380B1 (en) | Optimizing uplink synchronization via dynamic PRACH configuration | |
| KR20120015608A (en) | Method and apparatus for transmitting ranging signal in wireless communication system | |
| EP3420770A1 (en) | Passive intermodulation shaping | |
| JP2013146098A (en) | Radio communication system and receiver | |
| CN111865538A (en) | Uplink channel indication method and device | |
| KR20130089345A (en) | Apparatus and method for allocating common reference signal in a wireless communication system | |
| KR20080082104A (en) | Method and system for allocating resource in a communication system | |
| JP2013145943A (en) | Radio communication system and receiver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |