WO2012075788A1

WO2012075788A1 - Method and apparatus for processing uplink inter-cell interference

Info

Publication number: WO2012075788A1
Application number: PCT/CN2011/075285
Authority: WO
Inventors: 刘锟; 鲁照华; 罗薇; 李卫敏; 肖华华
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-12-10
Filing date: 2011-06-03
Publication date: 2012-06-14
Also published as: CN102045826A; CN102045826B

Abstract

A method and an apparatus for processing uplink inter-cell interference are disclosed in the present invention. The method includes the following steps: a base station allocates resource blocks for a terminal, wherein the resource blocks are used by the terminal for transmitting uplink data; the transmission power of the terminal is calculated according to the resource blocks; and the base station receives uplink data transmitted by the terminal with the transmission power. With the present invention, the uplink inter-cell interference intensity is reduced while guaranteeing the uplink performance of the base station.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a method and apparatus for processing uplink interference between cells. BACKGROUND In a broadband wireless communication system, such as an Orthogonal Frequency Division Multiplexing (OFDM) system, when uplink data transmission is performed between a base station and a different terminal in the same 'j, zone, because of these uplinks They are orthogonal to each other, so that uplink interference in the cell can be avoided. However, the base stations of the present cell may be subject to uplink interference from terminals of other neighboring cells, that is, uplink interference between cells.

'J. Interval uplink interference is an inherent problem of cellular mobile communication systems. The reason for this is that users using the same frequency resources in each cell will be mutually irritated. 1 is a schematic diagram of a principle of interference formation between uplinks of an inter-cell in a wireless communication system according to the related art. As shown in FIG. 1, BS 1 and BS 2 are respectively used as the base of MS 1 and MS 2 . The set of subcarriers allocated by BS 1 for MS 1 for uplink transmission is SCI, the set of subcarriers allocated by BS 2 for uplink transmission is SC2, and the intersection of SC1 and SC2 is SC. If the SC is not an empty set, when the BS2 receives the uplink signal sent by the MS2, the subcarriers in the set SC will simultaneously receive the wireless signal sent by the MS1, and for MS2 and BS2, these signals from the MS1 It is a thousand disturbances. If the distance between MS 1 and MS 2 is small, it is assumed that both MS 1 and MS 2 are in the overlapping part of the coverage area of the two serving cells. The uplink interference in the small interval will be strong, which may result in BS 2 not being able to correctly demodulate the MS 2 transmission. Upstream signal. It can be seen that the small interval uplink interference affects the uplink signal of the base station receiving terminal, thereby seriously affecting the system capacity. SUMMARY OF THE INVENTION The present invention is directed to the problem that an inter-cell uplink interference affects an uplink signal of a base station receiving terminal. To this end, the main object of the present invention is to provide a method and apparatus for processing inter-cell uplink interference to solve the above problem. . In order to achieve the above object, according to an aspect of the present invention, a processing method for inter-cell uplink interference is provided. The method for processing the inter-cell uplink interference according to the present invention includes: the base station allocates a resource block for the terminal, where the resource block is used for the terminal to send the uplink data; the resource block calculates the transmit power of the terminal; and the base station receives the uplink sent by the terminal using the transmit power. data. Before the base station allocates the resource block to the terminal, the method further includes: allocating available resources to the base station, the first neighboring base station adjacent to the base station, and the second neighboring base station adjacent to the base station; configuring the available resources Than IoT. Allocating available resources for the base station, the first neighboring base station adjacent to the base station, and the second neighboring base station adjacent to the base station includes: dividing the available resources into the first area and the second area by the dividing point T1 in the time domain, The first area is composed of a first resource block, a second resource block and a third resource block, and the second area is composed of two resource blocks, where Ν is a positive integer; the available resources of the base station are the first resource block and the first resource block. The available resources of the first neighboring base station are composed of the second resource block and the resource blocks; the available resources of the second neighboring base station are composed of the third resource block and the resource blocks. The available resource configuration ΙοΤ includes one of the following: the standard is the available resource configuration ΙοΤ; the base station, the first neighboring base station, and the second neighboring base station are available resource configurations ΤοΤ; the upper layer network unit is configured as an available resource and sent to the base station And a first neighboring base station and a second neighboring base station. Calculate the transmit power according to the following equation ( 1 ):

2

i'=l where ^ ^Fn is the transmit power, Fn is the resource block, and f( ) represents a function operation, MSW

2

For the downlink path loss or uplink path loss between the terminal and the serving base station, ^ ∑ j ^PL MS, BSi is the sum of the downlink path loss between the terminal, the first neighboring base station and the second adjacent base station, or the sum of the uplink losses , Ο ^, set to the resource block ΙοΤ, ^ is the actual IoT of the resource block,

The maximum transmit power value for the terminal. The following formula ( 2 ) calculates the transmit power:

(2); where, is the transmit power, Fn is the resource block, PJ^^, which is the downlink path loss or uplink path loss between the terminal and the serving base station, IoT _n , _real is the actual IoT of the resource block, P _M ^, MS is the maximum transmit power value of the terminal. After calculating the transmit power of the terminal according to the resource block, the method further includes: the base station determining the modulation and coding mode of the terminal on the resource block according to ^P MS, _Fn and ^{Ι θ Τ} η, _Κ 3 1 , where P^ _Fn For transmit power, Fn is the resource block, Ιθ T _n , _real is the actual _IoT of the resource block. In order to achieve the above object, according to another aspect of the present invention, an inter-cell uplink is provided

4 special processing devices. The processing device for the inter-cell uplink interference according to the present invention includes: a first allocation module, configured to allocate a resource block for the terminal, where the resource block is used by the terminal to send uplink data; and a calculation module, configured to calculate the transmission of the terminal according to the resource block The receiving module is configured to receive uplink data sent by the terminal using the transmit power. The device further includes: a second allocation module, configured to allocate available resources to the base station, the first neighboring base station adjacent to the base station, and the second neighboring base station adjacent to the base station; and the configuration module, configured to configure the available resources 4 especially noise ratio ΙοΤ. The second allocation module includes: a dividing submodule, configured as a dividing point in the time domain, 1 dividing the available resources into a first area and a second area, wherein the first area is composed of the first resource block, the second resource block, and the first The three resource blocks are composed, the second region is composed of the resource blocks, and Ν is a positive integer; the available resources of the base station are composed of the first resource block and the resource blocks; the available resources of the first neighboring base station are used by the second resource block and Ν resource blocks are composed; the available resources of the second neighboring base station are composed of a third resource block and a plurality of resource blocks. The invention solves the problem that the uplink interference between the cells affects the uplink signal of the receiving terminal of the base station by controlling the transmission power of the terminal, so that the uplink interference strength between the cells can be reduced while ensuring the uplink performance of the base station. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, In the drawings: FIG. 1 is a schematic diagram of a principle of interference generation between uplinks of cells in a wireless communication system according to the related art; FIG. 2 is a flowchart of a method for processing uplink interference between cells according to an embodiment of the present invention; 3 is a schematic diagram of a network topology structure of a cluster in a mobile communication system according to an embodiment of the present invention; FIG. 4 is a schematic diagram of resource partitioning mode and IoT intensity allocation according to a method for processing inter-cell uplink interference according to an embodiment of the present invention; FIG. 5 is a schematic diagram of intra-cluster base station resource allocation and IoT level allocation in a mobile communication system according to a preferred embodiment 1 of the present invention; FIG. 6 is a cluster base station resource allocation and IoT level in a mobile communication system according to a second preferred embodiment of the present invention; Figure 7 is a schematic diagram of a base station resource allocation and IoT level allocation in a mobile communication system according to a preferred embodiment 3 of the present invention; Figure 8 is a block diagram showing a structure of a processing device for inter-cell uplink interference according to an embodiment of the present invention; FIG. 9 is a structural block diagram of a processing apparatus for inter-cell uplink interference according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. The embodiment of the invention provides a processing method for uplink interference between cells, which can be implemented based on the following mobile communication system. The mobile communication system includes at least an upper layer network unit, a base station, and a terminal. The base station that communicates with the terminal is referred to as a serving base station; the upper layer network unit is a functional module of any network entity or network entity capable of data interaction with the base station. FIG. 2 is a flowchart of a method for processing inter-cell uplink interference according to an embodiment of the present invention. As shown in FIG. 2, the following steps S202 to S206 are included. Step S202: The base station allocates a resource block to the terminal, where the resource block is used by the terminal to send uplink data. Step S204: The resource block is calculated, and the transmit power of the terminal is calculated. Step S206: The base station receives uplink data sent by the terminal using the transmit power. In the related art, the small interval uplink interference affects the uplink signal of the base station receiving terminal. In the embodiment of the present invention, by controlling the transmit power of the terminal, the uplink interference strength between the cells can be reduced while ensuring the uplink performance of the base station. Preferably, before the base station allocates the resource block to the terminal, the method further includes: allocating available resources for the base station, the first neighboring base station adjacent to the base station, and the second neighboring base station adjacent to the base station; 4 Interference over Thermal (abbreviated as ΙοΤ). 3 is a schematic diagram of a network topology of a cluster in a mobile communication system according to an embodiment of the present invention. As shown in FIG. 3, a base station in a mobile communication system may be divided into multiple clusters, wherein one cluster includes three phases. Neighboring base station. The base station, the first neighboring base station, and the second neighboring base station in the preferred embodiment are preferably three adjacent base stations belonging to one cluster. The inter-cell uplink interference strength is measured by ΙοΤ, which can be calculated by IoTk = (Nk+Ik)/Nk, where Nk is the uplink noise power received by the base station on subcarrier k; Ik is the base station on subcarrier k The received uplink interference power; IoTk is the IoT of the base station on subcarrier k. Preferably, allocating available resources for the base station, the first neighboring base station adjacent to the base station, and the second neighboring base station adjacent to the base station includes: dividing the available resources into the first area by the dividing point T1 in the time domain (Zonel And a second region (Zone2), wherein the first region is composed of a first resource block (Fl-1), a second resource block (F1-2), and a third resource block (F1-3), and the second region is composed of N The resource blocks (F2-1 to F2-N) are composed, and N is a positive integer; the available resources of the base station are composed of the first resource block and the N resource blocks; the available resources of the first neighboring base station are used by the second resource block and The N resource blocks are composed; the available resources of the second neighboring base station are composed of a third resource block and N resource blocks. FIG. 4 is a schematic diagram of resource partitioning and IoT strength allocation according to a method for processing inter-cell uplink interference according to an embodiment of the present invention. As shown in FIG. 4, the partitioning of the foregoing resource blocks is described. Preferably, T1 is configured in a manner including one of the following: a standard default configuration; configured by an upper layer network element and transmitted to the base station; configured by the base station. Preferably, configuring the IoT for the available resources includes one of the following: the standard is the available resource configuration, the base station, the first neighboring base station, and the second neighboring base station configure the IoT for the available resources; the upper network unit configures the IoT for the available resources, and Sending to the base station, the first neighboring base station, and the second neighboring base station. Preferably, the base station allocates a resource block to the terminal, and at least one of the following: the base station first allocates a resource block for a terminal with a small number of resource blocks that can be used, and allocates a resource block for a terminal that has a large number of resource blocks that can be used; Allocating resource blocks of the first area, and then allocating resource blocks of the second area to the terminal. Preferably, before the base station allocates a resource block for the terminal with a small number of resource blocks, and then allocates the resource block for the terminal with a large number of resource blocks, the method further includes: the base station statistics the number of resource blocks and the index information of the terminal; The order is sorted in ascending order of quantity. Preferably, the transmission power is calculated according to the following formula (1):

(i) i'=l where PMS^ is the transmit power and Fn is the above resource block (ie any of Fl-1, Fl-2, Fl-3, F2-1 to F2-N), f ( ;) represents a function operation, for the terminal and service base

2

The downlink path loss or the uplink path loss between the stations, ^ ∑ j ^PL MS, BSi is the sum of the downlink path loss between the terminal, the first neighboring base station and the second neighboring base station, or the sum of the uplink path losses, I. T _{n set} is the IoT _set for the resource block, ^^, ^^ is the actual ΐοτ, P _Max , _MS of the resource block is the maximum complex power value of the terminal. Preferably, when the IoT is a specific value, the transmission power is calculated according to the following formula (2):

Wherein, PMS^ is the transmit power, and Fn is the resource block (ie, any resource block of Fl-1, Fl-2, Fl-3, F2-1 to F2-N), PJ^^, which is the terminal and the serving base station. Downlink path loss between The uplink path loss, ^ is the actual IoT of the resource block, ^ _ax , M? is the maximum transmit power value of the terminal. It should be noted that when the value of the IoT strength is a specific value, the determination of the transmit power of the terminal does not need to consider the IoT strength of the corresponding resource block, and the specific value is configured by including one of the following: Standard default configuration ; configured by the upper layer network unit and sent to the base station; configured by the base station. In addition, the step of calculating the transmission power according to the formula 2 may be performed by the base station or by the terminal. Preferably, after calculating the transmit power of the terminal according to the resource block, the method further includes: the base station determining, according to the PMS, _Fn and 07, ^, a modulation and coding mode of the terminal on the resource block, where 1^ is the transmit power, and Fn is The resource block, Ιθ T _n , _real is the actual _IoT of the resource block. The implementation process of the embodiment of the present invention will be described in detail below with reference to examples. In a preferred embodiment, a mobile communication system includes a plurality of clusters, each of which includes a plurality of base stations. In this embodiment, ^_ is set to Κ=3, as shown in FIG. 3, one cluster includes three base stations, and the base station includes three base stations. 1 (sector 1, BS 1 ), base station 2 (sector 2, BS2) and base station 3 (sector 3, BS3) „ The following describes the implementation steps of the inter-cell uplink interference coordination algorithm proposed in the present invention.

(1) Allocate available resources and configure different IoT levels for BS 1, BS2, and BS3 as shown in Figure 5. The available resources are divided into two zones (Zone) from the time domain, Zonel includes resource blocks Fl-1, F1-2, and Fl-3; zone2 includes resources 4 resource blocks F2-1 through F2-4. The value of T1 may be the time occupied by one or more time domain symbols, and the value of T1 is uniformly configured by BS 1, BS2, and BS3.

The value of T1 is not limited to the method given in this embodiment, but may be sent to BS 1, BS2, and BS3 by standard default configuration or by upper layer network configuration. For BS1, the IoT strength of Fl-1 is OdB, and the Fl-2 and Fl-3 resources BS1 are not used; the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 6 dB, 9 dB, 12 respectively. dB. For BS2, the IoT strength of Fl-2 is 0 dB, and the Fl-1 and Fl-3 resources BS2 are not used; the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 6 dB, 9 dB, respectively. 12 dB. For BS3, the IoT strength of Fl-3 is 0 dB, and the Fl-1 and Fl-2 resources BS3 are not used; the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 6 dB, 9 dB, respectively. 12 dB. In this embodiment, the value of the IoT strength of each resource block is uniformly configured by the base station, and when the value of the IoT strength is 0 dB, the determination of the transmit power of the terminal does not need to consider the IoT strength of the corresponding resource block.

(2) The base station sends the IoT strength value configured for each resource block to the terminal.

(3) Determine the transmit power of the terminal according to Equation 4.

; IoT _n , _set ≠ 0

Bribe ( ^{+N + I} ° ^T n, r _ea l its towel, ^^ indicates the transmission power of the terminal MS on the resource block Fn, Fn can be Fl-1, Fl-2, Fl-3, F2-1 to F2 -4„

Max represents the operation of taking the maximum value. MS; represents the downlink path loss or uplink path loss between the MS and the serving base station.

Σ ^PL MS, BSi represents the sum of the downlink path loss or the uplink path loss between the MS and two adjacent base stations.

I. T _{n set} represents the set IoT strength on the resource block Fn.

IoT _n , _real represents the actual received IoT strength on the resource block Fn. ^P MM, MS ^ MS maximum transmit power value. N represents the uplink noise power.

(4) According to the base station only Gen PMS, and ^{o 7} ^^ terminal MS determines whether the data can be sent on the resource block Fn, and determines the terminal on the resource block Fn may transmit data modulation and coding scheme MCSn. Taking BS 1 as an example, terminal MS 1 and terminal MS 2 respectively select BS 1 as a serving base station. £Set MS 1 to send data only on F1-1, MS2 can send data on Fl-1, F2-1, F2-2, F2-3 and F2-4.

(5) The base station determines that MS 1 can only send data on one resource block, and MS2 can send data on five resource blocks. Then, the base station first allocates resources of F1-1 for MS 1, and then allocates resources for MS2. When allocating resources for MS2, resources of F1-1 are allocated first. If there are no resources remaining on F1-1, resources of F2-1, F2-2, F2-3, and F2-4 are allocated to MS2.

(6) The base station transmits the resource block information allocated for the terminal to the terminals MS 1 and MS 2.

(7) The terminal receives the allocated resource block information sent by the base station, and determines the transmission power according to Equation 4, and completes the transmission of the data. Preferably, a mobile communication system includes a plurality of clusters, each of which includes K base stations. In this embodiment, _ _ is set to K=3. As shown in FIG. 3, one cluster includes three base stations, and the base station includes three base stations. 1 (sector 1, BS 1 ), base station 2 (sector 2, BS2) and base station 3 (sector 3, BS3) „ The following describes the implementation steps of the inter-cell uplink interference coordination algorithm proposed in the present invention.

(1) The available resources are allocated for BS 1, BS 2, and BS 3 as shown in FIG. 6 and different IoT levels are configured. The available resources are divided into two zones (Zone) from the time domain, Zonel includes resource blocks Fl-1, F1-2, and Fl-3; zone2 includes four resource blocks F2-1 to F2-4 of resources. Where T1 is the dividing point of Zonel and Zone2 at time i or above, and the value of T1 may be the time occupied by one or more time domain symbols, and the value of T1 is uniformly configured by BS 1, BS2, and BS3. The value of T1 is not limited to the method given in this embodiment, but may be sent to BS1, BS2, and BS3 by standard default configuration or by upper layer network configuration. In this embodiment, if T1=0, then there is no Zonel, so the resource configuration and IoT level of BS1, BS2 and BS3 are as shown in FIG. 6. For BS1, the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 6 dB, 9 dB, and 12 dB, respectively. For BS2, the IoT intensities of resource blocks F2-1 through F2-4 are 3 dB, 6 dB, 9 dB, and 12 dB, respectively. For BS3, the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 6 dB, 9 dB, and 12 dB, respectively.

(2) The base station sends the IoT strength value configured for each resource block to the terminal. (3) Determine the transmit power of the terminal according to Equation 5.

P _n

_{_{+ N + IoT nset, P M}} ^); IoT nset ≠ 0 π 7 = 1 ...... (5) Shang _{MS ^ = max (7¾> ¾} e ^ + N + IoT nreaI, P Ms ^);. IoT nse = 0 its towel,

^P Ms, _Fn represents the transmission power of the terminal MS on the resource block Fn, and Fn may be Fl-1, Fl-2, Fl-3, F2-1 to F2-4.

Max represents the operation of taking the maximum value.

Downlink path loss or uplink path loss between the MS and the serving base station.

2

IoT _{n set} represents the set IoT strength on the resource block Fn. ° represents the actual received IoT strength on the resource block Fn. ρ

Max' ¹ ^ represents the maximum transmit power value of the MS.

N represents the uplink noise power.

(4) base stations''and^0' ^ ⁷ ^ determined according to whether the terminal MS may transmit data on the resource block Fn, and determines the modulation and coding scheme in the resource block Fn terminal may transmit data MCSn. To BS 1, for example, The terminal MS 1 and the terminal MS 2 respectively select BS 1 as the serving base station. It is assumed that MS 1 can transmit data on F2-4, and MS2 can transmit data on F2-l, F2-2, F2-3 and F2-4.

(5) The base station determines that MS 1 can only send data on one resource block, and MS2 can send data on four resource blocks. Then, the base station first allocates resources of F2-4 for MS 1, and then allocates resources for MS2. When resources are allocated for MS2, resources are allocated according to the modulation coding efficiency of the modulation coding scheme determined by MS2 on the F2-l, F2-2, F2-3, and F2-4 resources from high to fast.

(6) The base station sends the resource block information allocated to the terminal to the terminals MS 1 and MS2;

(1) Allocate available resources for BS 1, BS2, and BS3 as shown in Figure 7 and configure different IoT levels. In this embodiment, £ is set to T 1=0. For BS 1, the IoT strengths of resource blocks F2-1 to F2-4 are 0 dB, 6 dB, 9 dB, respectively.

12 dB. For BS2, the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 0 dB, 9 dB, and 12 dB, respectively. For BS3, the IoT intensities of resource blocks F2-1 to F2-4 are 3 dB, 6 dB, 0 dB, and 12 dB, respectively. When the value of the IoT strength is OdB, the determination of the terminal transmit power does not need to consider the IoT strength of the corresponding resource block, and the neighboring base station does not allocate resources for the user on the corresponding resource block. For BS 1, the actual available resource blocks are F2-1 and F2-4, and the IoT strengths are 0 dB and 12 dB, respectively. For BS2, the actual available resource blocks are F2-2 and F2-4, and the IoT strengths are 0 dB and 12 dB, respectively. For BS3, the actual available resource blocks are F2-3 and F2-4, and the IoT strengths are 0 dB and 12 dB, respectively.

(2) The base station sends the IoT strength value configured for each resource block to the terminal. (3) Determine the transmit power of the terminal according to Equation 6.

P _n = ;

IoT _{n set} ≠0 π ⁷⁼¹ (6) 丄MS^ = max(73⁄4 _> 3⁄4 . _e ^ +N+IoT _{n reaI} , P _Ms ^ ); IoT _{n se} =0 where ^^ denotes the terminal MS The transmit power on the resource block Fn, Fn may be Fl-1, Fl-2, Fl-3, F2-1 to F2-4.

Max represents the operation of taking the maximum value.

PLMSWr ^ Downlink path loss or uplink path loss between the MS and the serving base station.

2

Σ ^PL MS, BSi represents the sum of the downlink path loss or the uplink path loss between the MS and two adjacent base stations. IoT _{n set} represents the setting ΙθΤ strength on the resource block Fn. IoT _n , _Kal represents the actual received IoT strength on the resource block Fn.

^P MM, MS represents the maximum transmit power value of the MS. N represents the uplink noise power.

(4) According to the base station only Gen PMS, and ^{o 7} ^^ terminal MS determines whether the data can be sent on the resource block Fn, and determines the terminal on the resource block Fn may transmit data modulation and coding scheme MCSn. Taking BS 1 as an example, terminal MS 1 and terminal MS 2 respectively select BS 1 as a serving base station. £Set MS 1 to send data on F2-4, MS2 can send data on F2- l, F2-2, F2-3 and F2-4.

(7) The terminal receives the allocated resource block information sent by the base station, and determines the transmission power according to Equation 4, and completes the transmission of the data. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein. The embodiment of the invention provides a processing device for uplink interference between cells, and the processing device for uplink interference between the cells can be used to implement the processing method for uplink interference between cells. FIG. 8 is a structural block diagram of a processing device for inter-cell uplink interference according to an embodiment of the present invention. As shown in FIG. 8, an allocation module 81, a calculation module 82, and a receiving module 83 are included. The structure is described in detail below. The first allocation module 81 is configured to allocate a resource block for the terminal, where the resource block is used by the terminal to send the uplink data, and the calculation module 82 is connected to the first distribution module 81, and is configured to be configured according to the first allocation module 81. The allocated resource block calculates the transmit power of the terminal. The receiving module 83 is connected to the calculation module 82 and configured to receive the uplink data sent by the terminal using the transmit power calculated by the calculation module 82. FIG. 9 is a structural block diagram of a processing apparatus for inter-cell uplink interference according to a preferred embodiment of the present invention. Preferably, the above apparatus further includes a second distribution module 84 and a configuration module 85, which are described in detail below. The allocating module 84 is configured to allocate available resources to the base station, the first neighboring base station adjacent to the base station, and the second neighboring base station adjacent to the base station; the configuration module 85 is connected to the allocating module 84, and is configured as the allocating module 84. Configure the available resources to allocate IoT. In addition, the first allocating module 81 is connected to the second allocating module 84, and is configured to allocate resource blocks for the terminal by using available resources allocated by the second allocating module 84, where the resource blocks are used by the terminal to send uplink data. Preferably, the second allocation module comprises: a dividing sub-module, configured to divide the available resources into the first area and the second area by the dividing point T1 in the time domain, wherein the first area is composed of the first resource block and the second resource block And the third resource block, the second area is composed of the resource blocks, Ν is a positive integer; the available resources of the base station are composed of the first resource block and the resource blocks; the available resources of the first neighboring base station are used by the second resource The block and the resource blocks are composed; the available resources of the second neighboring base station are composed of the third resource block and the resource blocks. It should be noted that the processing device for the inter-cell uplink interference described in the device embodiment corresponds to the foregoing method embodiment, and the specific implementation process has been described in detail in the method embodiment, and details are not described herein again. In summary, according to the above embodiments of the present invention, a method and apparatus for processing inter-cell uplink interference are provided. By controlling the transmit power of the terminal, the problem that the uplink interference between the cells affects the uplink signal of the base station receiving terminal is solved, so that the uplink interference strength between the cells can be reduced while ensuring the uplink performance of the base station. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or it may be They are fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. A method for processing an uplink between cells, including:

The base station allocates a resource block to the terminal, where the resource block is used by the terminal to send uplink data;

Calculating the transmit power of the terminal according to the resource block;

The base station receives uplink data sent by the terminal using the transmit power.

The method according to claim 1, wherein, before the base station allocates the resource block to the terminal, the method further includes:

Allocating available resources for the base station, a first neighboring base station adjacent to the base station, and a second neighboring base station adjacent to the base station; configuring a thousand-to-noise ratio IoT for the available resources.

3. The method according to claim 2, wherein: assigning available resources to the base station, a first neighboring base station adjacent to the base station, and a second neighboring base station adjacent to the base station includes: The dividing point T1 on the domain divides the available resources into a first area and a second area, where the first area is composed of a first resource block, a second resource block, and a third resource block, where the second area is composed of One resource block is composed, and Ν is a positive integer;

The available resources of the base station are composed of the first resource block and the resource blocks; the available resources of the first neighboring base station are composed of the second resource block and the resource blocks;

The available resources of the second neighboring base station are composed of the third resource block and the one resource block.

4. The method of claim 2, wherein configuring the available resource ΙοΤ includes one of the following:

Configuring the available resources according to a standard; the base station, the first neighboring base station, and the second neighboring base station are configured as the available resources; The upper layer network unit configures the IoT for the available resources, and sends the IoT to the base station, the first neighboring base station, and the second neighboring base station. The method according to claim 1, wherein the transmission power is calculated according to the following formula (1): (1);

Where PMS^ is the transmit power, Fn is the resource block, and f() represents a function operation,

PL is the downlink path loss or the uplink path loss between the terminal and the serving base station,

2

BSi is the terminal, the first neighboring base station, and the second neighboring base station

1

The sum of the downlink path loss or the sum of the uplink path losses, l ⁰ , set is ΙθΤ set for the resource block,

^ , Γ ^ is the actual IoT of the resource block,

^M _AX , M? is the maximum transmit power value of the terminal.

6. The method according to claim 1, wherein, when IoT is a specific value, the transmission power is calculated according to the following formula (2):

(2); wherein, PMS^ is the transmit power, and Fn is the resource block,

^{Io T} n, _Ka J is the actual Ι θ 所述 of the resource block, and PM ^, MS is the maximum transmit power value of the terminal. The method according to claim 1, wherein after calculating the transmit power of the terminal according to the resource block, the method further includes: determining, by the base station, the terminal according to the PMS and the ΙοΤ A modulation coding mode on the block, where P^ _Fn is the transmit power, Fn is the resource block, and IoTn _real is the actual IoT of the resource block. A processing device for uplink interference between cells, comprising:

a first allocation module, configured to allocate a resource block to the terminal, where the resource block is used by the terminal to send uplink data;

a calculation module, configured to calculate a transmit power of the terminal according to the resource block, and a receiving module, configured to receive uplink data sent by the terminal by using the transmit power. The device according to claim 8, further comprising:

a second allocation module, configured to allocate available resources to the base station, a first neighboring base station adjacent to the base station, and a second neighboring base station adjacent to the base station;

A configuration module, configured to configure a perturbation-to-noise ratio ΙοΤ for the available resources. The device according to claim 9, wherein the second distribution module comprises:

a dividing submodule, configured to divide the available resources into a first area and a second area by a dividing point T1 on the time domain, wherein the first area is composed of a first resource block, a second resource block, and a third resource block Composition, the second area is composed of a plurality of resource blocks, and Ν is a positive integer;