CN103002587B

CN103002587B - Power determining method and device

Info

Publication number: CN103002587B
Application number: CN201110268402.6A
Authority: CN
Inventors: 刁心玺
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-09-09
Filing date: 2011-09-09
Publication date: 2017-08-08
Anticipated expiration: 2031-09-09
Also published as: WO2013034023A1; CN103002587A

Abstract

The invention discloses power determining method and device, this method includes：Microcell measures radio-frequency power or signal intensity on the up-link wireless frame of macrocell WAP on the first band of frequencies, wherein, first band is frequency band used in the launch channel for the terminal that macrocell is serviced, and Microcell is located in the coverage of macrocell；Microcell determines the power time frequency distribution map of the up-link wireless frame in first band, wherein, power time frequency distribution map is used for the corresponding relation for identifying up-link wireless frame and radio-frequency power in first band, or for identifying the up-link wireless frame in first band and the corresponding relation of signal intensity；Power time frequency distribution map is sent to network side equipment by Microcell, and the radio-frequency power that the signal that macro cell terminal is sent is received by Microcell is determined for network side.By the present invention, the resource utilization of heterogeneous network is improved.

Description

Power determination method and device

Technical Field

The present invention relates to the field of communications, and in particular, to a power determination method and apparatus.

Background

In order to increase system capacity and improve spectrum use flexibility and spectrum use efficiency, a networking mode combining macro cell coverage and micro cell coverage is increasingly adopted in a radio access network. In some practical networks of operators, home base stations or femtocell base stations have been used, in the standard discussion, digital Repeater (RELAY) technology and home base station technology are also discussed in the third generation Partnership Project (3 GPP) Long Term Evolution (LTE), and standardization of heterogeneous networks (HetNet) composed of microcells and macrocells is also concerned by a large number of operators and equipment vendors in 3 GPP.

A heterogeneous network composed of a macro cell and a micro cell belongs to a layered coverage radio access network, and has some problems which are not existed in the traditional single-layer coverage radio access network: how the network side finds/determines candidate microcell wireless access points for the terminals served by the macrocell wireless access point, that is, the network side cannot determine the power of signals transmitted by the terminals served by the macrocell wireless access point to reach the microcell.

Disclosure of Invention

The present invention is directed to a power determination method and apparatus to solve at least the above problems.

According to an aspect of the present invention, there is provided a power determining method, including: a micro cell measures the radio frequency power or signal strength on an uplink wireless frame of a wireless access point of a macro cell on a first frequency band, wherein the first frequency band is a frequency band used by a transmitting channel of a terminal served by the macro cell, and the micro cell is positioned in the coverage range of the macro cell; the micro cell determines a power time-frequency distribution map of an uplink radio frame on a first frequency band, wherein the power time-frequency distribution map is used for identifying the uplink radio frame and the radio frequency power on the first frequency band; or the corresponding relation between the uplink radio frame on the first frequency band and the signal intensity is identified; the micro cell sends the power time-frequency distribution map to network side equipment, wherein the network side equipment determines the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell according to the power time-frequency distribution map and the time-frequency resource position of an uplink radio frame preset on a first frequency band for the macro cell terminal by the network side.

Preferably, the determining, by the micro cell, a power time-frequency distribution map of the uplink radio frame on the first frequency band includes: the micro cell divides the time frequency resource corresponding to the uplink wireless frame into a group of time frequency resource blocks; the micro cell uses a bitmap to identify the radio frequency power on the time frequency resource block; or the micro cell is identified by adopting bit coding for the radio frequency power on each time-frequency resource block.

Preferably, the identifying, by the micro cell, radio frequency power on the time-frequency resource block by using a bitmap includes: the micro cell encodes the position of a time-frequency resource block on the uplink wireless frame; judging whether the radio frequency power obtained by testing on the time frequency resource block corresponding to the code is greater than a preset threshold or not; and identifying the power on the time frequency resource block corresponding to the time frequency position code by adopting a bitmap mode according to the judgment result.

Preferably, the identifying of the micro cell by using bit coding for the radio frequency power on each time-frequency resource block comprises: the micro cell encodes the position of a time-frequency resource block on the uplink wireless frame; and identifying the power on the time frequency resource block corresponding to the time frequency position code by adopting multi-bit codes.

Preferably, the micro cell encoding the time-frequency resource blocks on the uplink radio frame includes one of: the micro cell carries out one-dimensional coding according to the time slot sequence of the uplink wireless frame; the micro cell carries out coding according to the time sequence of the uplink wireless frame; and the micro cell performs two-dimensional coding according to the time slot of the uplink wireless frame and the position of the orthogonal subcarrier.

Preferably, the measuring, by the micro cell, the radio frequency power on the uplink radio frame of the radio access point of the macro cell on the first frequency band includes: the micro cell acquires frame structure information of the uplink wireless frame and frame header starting time information of the uplink wireless frame; and measuring the power of the radio frequency signal on the uplink radio frame according to a preset time frequency position by using the frame structure information and the frame header starting time information.

Preferably, the acquiring, by the pico cell, the frame structure information of the uplink radio frame includes: the micro cell acquires the frame structure information of the uplink wireless frame through one of the following channels: a downlink channel of the macro cell or a backhaul channel of a wireless access point of the micro cell; the acquiring, by the pico cell, frame header start time information of the uplink radio frame includes: the micro cell synchronizes with an air interface of the macro cell through a downlink synchronous channel of a wireless access point of the macro cell; the micro cell determines the frame header starting time of the downlink radio frame by using the structure of the downlink radio frame and the time configuration of the downlink synchronous channel on the radio frame; and the micro cell determines the frame header starting time of the uplink wireless frame by using the frame header starting time of the downlink wireless frame according to the corresponding relation between the uplink wireless frame and the downlink wireless frame of the macro cell wireless access point.

Preferably, the structure information of the uplink radio frame includes: the method comprises the steps of determining the type of a wireless system to which a wireless frame belongs and/or parameter configuration information of the uplink wireless frame, wherein the parameter configuration information comprises a duration period and a bandwidth.

Preferably, the measuring the power of the radio frequency signal on the uplink radio frame according to the predetermined time-frequency position by using the frame structure information and the frame header start time information includes: and performing radio frequency power measurement on all time slots included in the uplink radio frame or on a preset time slot according to the resource indication information sent by the network side equipment.

According to an aspect of the present invention, there is provided a power determining method, including: the method comprises the steps that network side equipment receives a power time-frequency distribution diagram of an uplink radio frame of a wireless access point of a macro cell on a first frequency band, wherein the power time-frequency distribution diagram is sent by a micro cell and is used for identifying the uplink radio frame and the radio frequency power on the first frequency band; or the uplink radio frame on the first frequency band is used for identifying the corresponding relation between the signal intensity and the uplink radio frame on the first frequency band, wherein the first frequency band is a frequency band used by a transmitting channel of a terminal served by the macro cell, the radio frequency power is the radio frequency power of the uplink radio frame of the wireless access point of the macro cell measured by the micro cell on the first frequency band, and the signal intensity is the radio frequency power of the uplink radio frame of the wireless access point of the macro cell measured by the micro cell on the first frequency band; and the network side equipment determines the signal intensity of the signal transmitted by the macro cell terminal and received by the micro cell according to the power time frequency distribution diagram and the preset time frequency resource position of the macro cell terminal on the uplink radio frame of the first frequency band.

Preferably, the determining, by the network side device, the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell according to the power time-frequency distribution map and a time-frequency resource position preset by the network side for the macro cell terminal on the uplink radio frame on the first frequency band includes: taking a position parameter of a time-frequency resource preset on an uplink radio frame of the macro cell terminal on the first frequency band at a network side as an index, and determining the power on the time-frequency resource indicated by the position parameter as the radio frequency power received by the micro cell of a signal transmitted by the macro cell terminal in the power time-frequency distribution diagram; or, mapping the location parameter of a time-frequency resource block preset on the uplink radio frame on the first frequency band by the network side for the macro cell terminal into a parameter consistent with the location parameter in the corresponding relationship, and determining the power on the time-frequency resource indicated by the mapped time-frequency location parameter in the power time-frequency distribution diagram as the radio-frequency power received by the micro cell for the signal transmitted by the macro cell terminal; mapping the time-frequency location parameter of the uplink radio frame preset on the first frequency band by the macro cell terminal to a parameter consistent with the location parameter in the power time-frequency map, where the mapping is performed by: and the syntax and the semantics adopted by the position parameters of the time-frequency resources preset on the uplink wireless frame on the first frequency band by the macro cell terminal on the network side are the same as those adopted by the position parameters in the corresponding relation.

Preferably, after determining the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell, the method further includes: the network side equipment uses the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell to judge the channel state between the macro cell terminal and the micro cell wireless access point to be one of the following: a candidate communication channel, a potential adjacent channel interference channel, or a potential spatial frequency reuse channel; and the network side equipment allocates channel resources for the macro cell terminal according to the channel state.

Preferably, the allocating, by the network side device, the channel resource to the macrocell terminal according to the channel state includes: when the channel state is the candidate communication channel, allocating channel resources for the macro cell terminal on the wireless node of the micro cell; when the channel state is the potential adjacent channel interference channel, allocating resources for inhibiting adjacent channel interference to the macro cell terminal on the micro cell wireless access point; and when the channel state is the potential space frequency multiplexing channel, allocating channel resources for the macro cell terminal on the wireless access point of the macro cell in a space frequency multiplexing mode.

Preferably, the determining that the channel state between the macrocell terminal and the microcell wireless access point is the candidate communication channel includes: judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is greater than a first judgment threshold of a preset potential uplink channel; and if so, determining the channel state as the candidate uplink communication channel.

Preferably, the determining that the channel state between the macrocell terminal and the microcell wireless access point is the candidate communication channel includes: judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is greater than a first judgment threshold of a preset potential uplink channel; if so, judging whether the ratio of the transmitting power of the macro cell terminal to the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell is greater than a preset potential uplink channel second judgment threshold again; and if so, determining the channel state as the candidate uplink communication channel.

Preferably, the determining that the channel state between the macrocell terminal and the microcell wireless access point is the candidate communication channel includes: the network side selects one or more micro cells from a plurality of micro cells which transmit the radio frequency power of the macro cell terminal according to the sequence of the radio frequency power from large to small; the network side sends the identifications of the one or more micro cells to the macro cell terminal and indicates the macro cell terminal to measure the transmission signals of the wireless access points of the micro cells; the network side judges whether the measurement result received by the macro cell terminal is greater than the judgment threshold of the potential serving cell; and if so, determining the channel state as the candidate uplink communication channel.

Preferably, the determining that the channel state between the macrocell terminal and the microcell wireless access point is the potential adjacent channel interference channel includes: judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is greater than a preset potential uplink adjacent channel interference judgment threshold or not; and if so, determining the channel state as the potential adjacent channel interference channel.

Preferably, the determining that the channel state between the macrocell terminal and the microcell wireless access point is the potential adjacent channel interference channel includes: the network side selects one or more micro cells from a plurality of micro cells reporting the radio frequency power of the macro cell terminal according to the sequence of the radio frequency power from large to small; the network side sends the identifications of the one or more micro cells to the macro cell terminal, and instructs the macro cell terminal to measure the transmission signals of the wireless access points corresponding to the micro cells; the network side judges whether the measurement result received by the macro cell terminal is greater than a potential uplink adjacent channel interference judgment threshold or not; and if so, determining the channel state as the potential adjacent channel interference channel.

Preferably, when the channel status is the potential adjacent channel interference channel, allocating, on the microcell wireless access point, a resource for suppressing adjacent channel interference to the macrocell terminal includes: and the network side configures the transmitting channel of the macro cell terminal on the uplink adjacent channel interference suppression sub-band of the first frequency band, wherein an uplink adjacent channel interference protection frequency band exists between the uplink adjacent channel interference suppression sub-band of the first frequency band and the uplink frequency band of the wireless access point of the micro cell.

Preferably, the determining that the channel status between the macrocell terminal and the microcell wireless access point is the potential space-frequency reuse channel includes: judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is less than or equal to a preset potential uplink space frequency multiplexing channel judgment threshold or not; and if so, determining the channel state as the potential space frequency multiplexing channel.

Preferably, the determining that the channel status between the macrocell terminal and the microcell wireless access point is the potential space-frequency reuse channel includes: the network side selects one or more macro cell terminals of which the radio frequency power of the transmitted signals received by the micro cell is lower than a first threshold of a preset interference judgment; the network side indicates the selected macro cell terminal to measure the transmission signal of the wireless access point of the micro cell; the network side judges whether the measurement result received by the selected macro cell terminal is less than or equal to a preset interference judgment second threshold; and if so, determining the channel state as the potential space frequency multiplexing channel.

Preferably, the downlink of the wireless access point of the macro cell uses the first frequency band, the uplink of the wireless access point of the macro cell uses the second frequency band, the downlink of the wireless access point of the micro cell uses the third frequency band, the downlink of the micro cell uses the fourth frequency band, the first frequency band includes a first downlink sub-band and a second downlink sub-band, and the first downlink sub-band is located between the second downlink sub-band and the third frequency band, the second frequency band includes: a second uplink sub-band and a second uplink sub-band, the first uplink sub-band being located between the second uplink sub-band and the fourth frequency band.

According to another aspect of the present invention, there is provided a power determining apparatus applied to a micro cell, including: a first measuring module, configured to measure, on a first frequency band, radio frequency power or signal strength on an uplink radio frame of a wireless access point of a macro cell, where the first frequency band is a frequency band used by a terminal served by the macro cell to transmit a signal, and the micro cell is located within a coverage area of the macro cell; a first determining module, configured to determine a power time-frequency distribution map of an uplink radio frame on a first frequency band, where the power time-frequency distribution map is used to identify the uplink radio frame and the radio frequency power on the first frequency band; or the corresponding relation between the uplink radio frame on the first frequency band and the signal intensity is identified; and the sending module is used for sending the power time-frequency distribution map to the network side equipment, and the network side equipment is used for determining the radio frequency power of the signal sent by the macro cell terminal and received by the micro cell.

According to another aspect of the present invention, there is provided a power determining apparatus, applied to a network side device, including: a receiving module, configured to receive a power time-frequency distribution map of an uplink radio frame of a macro cell wireless access point on a first frequency band, where the power time-frequency distribution map is used to identify the uplink radio frame and the radio frequency power on the first frequency band; or the uplink radio frame on the first frequency band is used for identifying the corresponding relation between the signal intensity and the uplink radio frame on the first frequency band, wherein the first frequency band is the frequency band used by the transmitting channel of the terminal served by the macro cell, the radio frequency power is the radio frequency power obtained by the micro cell measuring the uplink radio frame of the macro cell wireless access point on the first frequency band, and the signal intensity is the radio frequency power obtained by the micro cell measuring the uplink radio frame of the macro cell wireless access point on the first frequency band; and the second determining module is used for determining the signal strength of the signal transmitted by the macro cell terminal and received by the micro cell according to the power time-frequency map and the time-frequency resource of the uplink radio frame preset by the macro cell terminal on the first frequency band.

According to the invention, the micro cell is adopted to measure the radio frequency power on the uplink radio frame of the wireless access point of the macro cell on the first frequency band, and then the corresponding relation between the uplink radio frame on the first frequency band and the radio frequency power or signal intensity is determined; and sending the corresponding relation to the network side equipment, wherein the corresponding relation is used for the network side equipment to determine the radio frequency power received by the micro cell of the signal sent by the macro cell terminal, so that the problem of how the network side finds/determines the candidate micro cell wireless access point for the terminal serving the macro cell wireless access point in the related technology is solved, and the effect of improving the resource utilization rate of the heterogeneous network is further achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a first flowchart of a power determination method according to an embodiment of the present invention;

FIG. 2 is a second flowchart of a power determination method according to an embodiment of the present invention;

fig. 3 is a first block diagram of a power determining apparatus according to an embodiment of the present invention;

FIG. 4 is a first block diagram of a preferred architecture of a power determination apparatus according to an embodiment of the present invention;

fig. 5 is a second structural block diagram of a power determining apparatus according to an embodiment of the present invention;

fig. 6 is a second preferred block diagram of the power determining apparatus according to the embodiment of the present invention;

fig. 7 is a flowchart of a method for a micro cell to monitor the arrival power of signals transmitted by a macro cell terminal according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a method for reducing uplink adjacent channel interference of a macrocell terminal to a microcell access point according to an embodiment of the present invention; and

fig. 9 is a schematic diagram of a frequency allocation method for reducing interference of a micro cell wireless access point to a macro cell terminal adjacent channel according to an embodiment of the present invention.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present embodiment provides a resource processing method, and fig. 1 is a first flowchart of the resource processing method according to the embodiment of the present invention, and as shown in fig. 1, the method includes the following steps S102 to S106.

Step S102: a micro cell measures the radio frequency power or signal strength on an uplink wireless frame of a wireless access point of a macro cell on a first frequency band, wherein the first frequency band is a frequency band used by a transmitting channel of a terminal served by the macro cell, and the micro cell is positioned in the coverage range of the macro cell;

step S104: the micro cell determines a power time-frequency distribution map of an uplink radio frame on a first frequency band, wherein the power time-frequency distribution map is used for identifying the corresponding relation between the uplink radio frame on the first frequency band and the radio frequency power; or the corresponding relation between the uplink radio frame on the first frequency band and the signal intensity is identified;

step S106: the micro cell sends the power time-frequency distribution map to network side equipment for the network side to determine the radio frequency power received by the micro cell of the signal sent by the macro cell terminal.

In implementation, the determining, by the micro cell, the power time-frequency distribution map of the uplink radio frame on the first frequency band includes two implementation manners:

the first method is as follows: the micro cell divides time-frequency resources corresponding to the uplink wireless frame into a group of time-frequency resource blocks; the micro cell uses the bitmap to identify the radio frequency power on the time frequency resource block.

In the mode, a micro cell encodes a time-frequency resource block on an uplink wireless frame; judging whether the radio frequency power obtained by testing on a time frequency resource block corresponding to the code is greater than a preset threshold or not; and identifying the power on the time frequency resource block corresponding to the time frequency position code by adopting a bitmap mode according to the judgment result.

The second method comprises the following steps: the micro cell divides time-frequency resources corresponding to the uplink wireless frame into a group of time-frequency resource blocks; and identifying the power on the time frequency resource block corresponding to the time frequency position code by adopting multi-bit coding.

The first mode adopts a bitmap mode to represent, realizes that the corresponding relation is represented by a diagram, and looks more intuitive. For example: when the measured value of the radio frequency power on the time frequency resource block is greater than a preset threshold, the radio frequency power on the time frequency resource block is represented as '1' or '0', and when the measured value of the radio frequency power on the time frequency resource block is less than the preset threshold, the radio frequency power on the time frequency resource block is represented as '0' or '1'. It should be noted that only one threshold is illustrated in this example, and in practice, two or more thresholds may be used to determine the bitmap.

And in the second mode, the radio frequency power obtained by the measurement is expressed by adopting bit coding, the mode is simple and convenient to realize, and the corresponding relation can also take the time-frequency relation as a coordinate system, and the radio frequency power is marked at the corresponding coordinate position as an illustration, so that the search is convenient.

In the two methods, the time-frequency resource block on the uplink radio frame needs to be encoded, and the encoding method may include the following three methods:

the first method comprises the following steps: the micro cell carries out one-dimensional coding according to the time slot sequence of the uplink wireless frame;

and the second method comprises the following steps: the micro cell carries out coding according to the time sequence of the uplink wireless frame;

and the third is that: the micro cell carries out two-dimensional coding according to the time slot of the uplink wireless frame and the position of the orthogonal subcarrier.

In step S102, the micro cell may measure the radio frequency power on the uplink radio frame of the wireless access point of the macro cell on the first frequency band in the following manner: the method comprises the steps that a micro cell obtains frame structure information of an uplink wireless frame and frame header starting time information of the uplink wireless frame; and measuring the power of the radio frequency signal on the uplink radio frame according to the preset time frequency position by using the frame structure information and the frame head starting time information. The method measures at the preset time frequency position through the frame structure information and the frame head starting time information, and improves the accuracy of measuring power.

Preferably, the frame structure information of the uplink radio frame may be acquired in various ways, such as: a downlink channel of a macro cell or a backhaul channel of a wireless access point of a micro cell. The existing channel is adopted to obtain the frame structure information, and the signaling load is reduced.

Preferably, the frame header start time information of the uplink radio frame may be acquired in various ways, for example: the micro cell synchronizes with an air interface of the macro cell through a downlink synchronous channel of a wireless access point of the macro cell; the micro cell determines the frame header starting time of the downlink radio frame by using the structure of the downlink radio frame and the time configuration of a downlink synchronous channel on the radio frame; the micro cell determines the frame head starting time of the uplink wireless frame by using the frame head starting time of the downlink wireless frame according to the corresponding relation between the uplink wireless frame and the downlink wireless frame of the macro cell wireless access point. The frame header starting time of the uplink wireless frame is determined according to the time slot corresponding relation of the uplink and the downlink, and the accuracy of the frame header starting time of the uplink wireless frame is improved. The structure information of the uplink radio frame includes: the radio frame belongs to a wireless system type and/or parameter configuration information of an uplink wireless frame, wherein the parameter configuration information comprises a duration period and a bandwidth.

In a preferred embodiment, the measuring the power of the radio frequency signal on the uplink radio frame according to the predetermined time-frequency position by using the frame structure information and the frame header start time information comprises: and performing radio frequency power measurement on all time slots included in the uplink radio frame or on a preset time slot according to resource indication information sent by the network side equipment. That is, the radio frequency power measurement can be performed for each time slot, the accuracy of the result obtained by the measurement is relatively high, and the radio frequency power measurement can also be performed only in the predetermined time slot, so that the detection resource is saved.

The present embodiment provides a resource processing method, and fig. 2 is a second flowchart of the resource processing method according to the embodiment of the present invention, and as shown in fig. 2, the method includes the following steps S202 to S204.

Step S202: the method comprises the steps that a network side device receives a power time-frequency distribution diagram of an uplink wireless frame of a macro cell wireless access point on a first frequency band sent by a micro cell, wherein the power time-frequency distribution diagram is used for identifying the corresponding relation between the uplink wireless frame and radio frequency power or between the first frequency band and the uplink wireless frame and signal strength, the uplink wireless frame and the radio frequency power or the corresponding relation between the uplink wireless frame and the signal strength are of the uplink wireless frame of the macro cell wireless access point, the uplink wireless frame and the radio frequency power or the uplink wireless frame and the signal strength are of the uplink wireless frame and the signal strength, the uplink wireless frame and the radio frequency power or the uplink wireless frame and the signal strength are of the terminal served by the macro cell.

Step S204: and the network side equipment determines the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell according to the power time frequency distribution diagram and the time frequency resource of the uplink radio frame preset by the macro cell terminal on the first frequency band.

The network side device determines the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell by using the corresponding relation and the time-frequency resource of the uplink radio frame preset by the macro cell terminal on the first frequency band, and the implementation modes can be as follows: for example: taking a position parameter of a time-frequency resource preset on an uplink radio frame on a first frequency band by taking a network side as a macro cell terminal as an index, and determining the power on the time-frequency resource corresponding to the position parameter as the radio frequency power received by a micro cell of a signal transmitted by the macro cell terminal in a power time-frequency distribution diagram; or mapping the position parameters of the time-frequency resources preset on the uplink radio frame of the macro cell terminal on the first frequency band on the network side into the parameters consistent with the position parameters in the corresponding relation, and judging the power on the time-frequency resources indicated by the mapped time-frequency position parameters as the radio frequency power received by the micro cell of the signals transmitted by the macro cell terminal; mapping a parameter representing a time-frequency position preset on an uplink radio frame of a macro cell terminal on a network side on a first frequency band into a parameter consistent with a position parameter adopted in the power time-frequency distribution diagram, wherein the parameter is as follows: and the syntax and the semantics adopted by the parameter representation mode of the time-frequency position preset on the uplink wireless frame on the first frequency band by the macro cell terminal on the network side are the same as the syntax and the semantics adopted by the parameter representation mode of the position in the corresponding relation.

Preferably, after determining the radio frequency power received by the micro cell of the signal transmitted by the macro cell terminal, the method further includes: the network side equipment uses the radio frequency power received by the micro cell of the signal transmitted by the macro cell terminal, and judges the channel state between the macro cell terminal and the micro cell wireless access point to be one of the following: a candidate communication channel, a potential adjacent channel interference channel, or a potential spatial frequency reuse channel; and the network side equipment allocates channel resources for the macro cell terminal according to the channel state. The embodiment also determines the channel state between the macro cell terminal and the micro cell wireless access point after determining the radio frequency power received by the micro cell of the signal transmitted by the macro cell, and then allocates the channel resource according to the channel state. The capacity of the system is improved by realizing the interference suppression or frequency reuse between adjacent frequencies.

According to different channel filling, the network side device may adopt multiple ways to allocate channel resources to the macrocell terminal, for example: when the channel state is a candidate communication channel, allocating channel resources for the macro cell terminal on the wireless node of the micro cell; and when the channel state is a potential adjacent channel interference channel, allocating adjacent channel interference suppression resources for the macro cell terminal on the micro cell wireless access point. And when the channel state is a potential space frequency multiplexing channel, allocating channel resources for the macro cell terminal on the wireless access point of the macro cell in a space frequency multiplexing mode.

For determining that the channel state between the macro cell terminal and the micro cell wireless access point is a candidate communication channel, in implementation, there may be a plurality of embodiments:

the first method is as follows: judging whether the radio frequency power received by the micro cell of a signal transmitted by a macro cell terminal is greater than a first judgment threshold of a preset potential uplink channel; and if so, determining the channel state as a candidate uplink communication channel.

The second method comprises the following steps: judging whether the radio frequency power received by the micro cell of a signal transmitted by a macro cell terminal is greater than a first judgment threshold of a preset potential uplink channel; if so, judging whether the ratio of the transmitting power of the macro cell terminal to the radio frequency power of the signal transmitted by the macro cell terminal received by the micro cell is greater than a preset potential uplink channel second judgment threshold or not; and if so, determining the channel state as a candidate uplink communication channel.

The third method comprises the following steps: judging the channel state between the macro cell terminal and the micro cell wireless access point as a candidate communication channel comprises the following steps: the network side selects one or more micro-cells from a plurality of micro-cells which transmit the radio frequency power of the macro-cell terminal according to the sequence of the radio frequency power from large to small; the network side sends the identification of one or more micro cells to the macro cell terminal and indicates the macro cell terminal to measure the transmitting signal of the wireless access point of the micro cell; the network side judges whether the received measurement result is greater than the judgment threshold of the potential service cell; and if so, determining the channel state as a candidate uplink communication channel.

The first mode is relatively simple in implementation, and the second mode is relatively complex in implementation but relatively high in accuracy; in the third mode, the network side selects one or more micro cells according to the radio frequency power, then the identifications of the micro cells are sent to the macro cell terminal, the macro cell terminal measures the identifications, and then the network side receives and judges the measurement results.

For the channel state between the macro cell terminal and the micro cell wireless access point to be a potential adjacent channel interference channel, in implementation, there may be a plurality of implementation manners:

the first method is as follows: judging whether the radio frequency power received by the micro cell of a signal transmitted by a macro cell terminal is greater than a preset potential uplink adjacent channel interference judgment threshold or not; and if so, determining the channel state as a potential adjacent channel interference channel.

The second method comprises the following steps: the step of judging the channel state between the macro cell terminal and the micro cell wireless access point as a potential adjacent channel interference channel comprises the following steps: the network side selects one or more micro-cells from a plurality of micro-cells which transmit the radio frequency power of the macro-cell terminal according to the sequence of the radio frequency power from large to small; the network side sends the identification of one or more micro cells to the macro cell terminal and indicates the macro cell terminal to measure the transmitting signal of the wireless access point of the micro cell; the network side judges whether the received measurement result is larger than a potential uplink adjacent channel interference judgment threshold or not; and if so, determining the channel state as a potential adjacent channel interference channel.

In a preferred embodiment, when the channel status is a potential adjacent channel interference channel, allocating the resource for suppressing the adjacent channel interference for the macro cell terminal on the micro cell wireless access point comprises: and the network side configures the transmitting channel of the macro cell terminal on the uplink adjacent channel interference suppression sub-band of the first frequency band, wherein an uplink adjacent channel interference protection band exists between the uplink adjacent channel interference suppression sub-band of the first frequency band and the uplink frequency band of the wireless access point of the micro cell.

For determining that the channel state between the macro cell terminal and the micro cell wireless access point is a potential space frequency reuse channel, in implementation, there may be a plurality of implementation manners:

the first method is as follows: judging whether the radio frequency power received by the micro cell of a signal transmitted by a macro cell terminal is less than or equal to a preset judgment threshold of a potential uplink space frequency multiplexing channel; and if so, determining the channel state as a potential space-frequency multiplexing channel.

The second method comprises the following steps: the network side selects one or more macro cell terminals of which the transmitted signals are received by the micro cell and the radio frequency power of which is lower than a first threshold of preset interference judgment; the network side indicates the macro cell terminal to measure the transmitting signal of the wireless access point of the micro cell; the network side judges whether the received measurement result is less than or equal to a predetermined interference judgment second threshold; and if so, determining the channel state as a potential space-frequency multiplexing channel.

Preferably, the downlink of the wireless access point of the macro cell uses a first frequency band, the uplink of the wireless access point of the macro cell uses a second frequency band, the downlink of the wireless access point of the micro cell uses a third frequency band, the downlink of the micro cell uses a fourth frequency band, the first frequency band includes a first downlink sub-band and a second downlink sub-band, and the first downlink sub-band is located between the second downlink sub-band and the third frequency band, and the second frequency band includes: a second uplink sub-band and a second uplink sub-band, the first uplink sub-band being located between the second uplink sub-band and the fourth frequency band.

In another embodiment, a power determination software is provided, which is used to implement the technical solutions described in the above embodiments and the preferred embodiments.

In another embodiment, a storage medium is provided, in which the data transmission software is stored, and the storage medium includes but is not limited to: optical disks, floppy disks, hard disks, erasable memory, etc.

The embodiment of the present invention further provides a power determining apparatus, where the resource processing apparatus may be configured to implement the power determining method and the preferred embodiment, which have been described above and are not described again, and a description is provided below for modules involved in the resource processing apparatus. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. While the systems and methods described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

Fig. 3 is a first structural block diagram of a power determining apparatus (applied to a micro cell) according to an embodiment of the present invention, as shown in fig. 3, the apparatus includes: the first measurement module 32, the first determination module 34, and the sending module 36, the above structure is described as follows:

a first measuring module 32, configured to measure radio frequency power or signal strength on an uplink radio frame of a wireless access point of a macro cell on a first frequency band, where the first frequency band is a frequency band used by a terminal served by the macro cell to transmit signals, and the micro cell is located within a coverage area of the macro cell; a first determining module 34, connected to the first measuring module 32, configured to determine a power distribution map of an uplink radio frame on the first frequency band, where the power time-frequency distribution map is used to identify a correspondence between the uplink radio on the first frequency band and radio frequency power measured by the first measuring module 32; or is used to identify the corresponding relationship between the uplink radio frame on the first frequency band and the signal strength measured by the first measurement module 32; a sending module 36, connected to the first determining module 34, configured to send the power time-frequency distribution map determined by the first determining module 34 to a network side device, where the network side device determines radio frequency power of a signal sent by a macro cell terminal and received by a micro cell.

Fig. 4 is a first block diagram of a preferred structure of a power determining apparatus according to an embodiment of the present invention, and as shown in fig. 4, the first determining module 34 includes: a partitioning module 342, a first identification module 344, and a second identification module 346; the first measurement module 32 includes: an acquisition module 322 and a second measurement module 324, the above structure is described in detail below:

the first determination module 34 includes: a dividing module 342, configured to divide time-frequency resources corresponding to the uplink radio frame into a group of time-frequency resource blocks; a first identification module 344, connected to the dividing module 342, configured to identify radio frequency power on the time-frequency resource blocks divided by the dividing module 342 by using a bitmap; or a second identifying module 346, connected to the dividing module 342, for identifying the radio frequency power on each time-frequency resource block divided by the dividing module 342 by using bit coding.

The first measurement module 32 includes: an obtaining module 322, configured to obtain frame structure information of an uplink radio frame and frame header start time information of the uplink radio frame; a second measuring module 324, connected to the obtaining module 322, is configured to measure the power of the radio frequency signal on the uplink radio frame according to a predetermined time-frequency position by using the frame structure information and the frame header start time information obtained by the obtaining module 322.

Fig. 5 is a second structural block diagram of a resource processing apparatus (applied to a network side device) according to an embodiment of the present invention, and as shown in fig. 5, the apparatus includes: the receiving module 52 and the second determining module 54, which will be described in detail below.

A receiving module 52, configured to receive a power time-frequency distribution map of an uplink radio frame of a wireless access point of a macro cell on a first frequency band sent by a micro cell, where the power time-frequency distribution map is used to identify a corresponding relationship between the uplink radio frame and a radio frequency power or between the first frequency band and the uplink radio frame and a signal strength, where the first frequency band is a frequency band used by a transmission channel of a terminal served by the macro cell, the radio frequency power is a radio frequency power obtained by the micro cell measuring the uplink radio frame of the wireless access point of the macro cell on the first frequency band, and the signal strength is a signal strength obtained by the micro cell measuring the uplink radio frame of the wireless access point of the macro cell on the first frequency band; a second determining module 54, connected to the receiving module 52, configured to determine, by using the power time-frequency distribution map received by the receiving module 52 and a time-frequency resource location on an uplink radio frame preset on the first frequency band for the macro cell terminal by the network side, radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell.

Fig. 6 is a second preferred block diagram of the power determining apparatus according to the embodiment of the present invention, and as shown in fig. 6, the second determining module 54 includes: a third determination module 542, a fourth determination module 544; the above-mentioned device still includes: the judging module 62 and the allocating module 64, the following explains the above structure:

a third determining module 542, configured to use a location parameter of a time-frequency resource of an uplink radio frame preset on a first frequency band by a macro cell terminal as an index, and determine, in a power time-frequency distribution diagram, power on the time-frequency resource indicated by the location parameter as radio frequency power of a signal transmitted by the macro cell terminal, which is received by a micro cell; a fourth determining module 544, configured to map a location parameter of a time-frequency resource preset on an uplink radio frame on a first frequency band by a macro cell terminal on a network side into a parameter that is syntactically and semantically consistent with the location parameter adopted in the power time-frequency distribution map, and determine power at the mapped time-frequency resource position adopted in the power time-frequency distribution map as radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell; mapping the location parameter of the time-frequency resource preset on the uplink radio frame on the first frequency band by the network side macro cell terminal into the parameter consistent with the location parameter of the video resource in the power time-frequency distribution diagram refers to: and the syntax and the semantics adopted by the expression mode of the position parameters of the time-frequency resources preset on the uplink radio frame on the first frequency band by the macro cell terminal on the network side are the same as the syntax and the semantics adopted by the expression mode of the time-frequency positions adopted in the corresponding relation.

A judging module 62, connected to the second determining module 54, for judging the channel state between the macrocell terminal and the microcell wireless access point to be one of the following by using the radio frequency power received by the microcell of the signal transmitted by the macrocell terminal determined by the second determining module 54: a candidate communication channel, a potential adjacent channel interference channel, or a potential spatial frequency reuse channel; and an allocating module 64, configured to connect to the determining module 62, and allocate channel resources to the macrocell terminal according to the channel state determined by the determining module 62.

Reference will now be made in detail to the preferred embodiments, which are a combination of the above embodiments and preferred embodiments.

Preferred embodiment 1

The present embodiment provides a method for a micro cell to monitor an arrival power of a signal transmitted by a terminal in a macro cell, which is suitable for determining a potential channel state between the terminal accessing the macro cell and a wireless access point in the micro cell covered by the macro cell, and fig. 7 is a flowchart of a method for a micro cell to monitor an arrival power of a signal transmitted by a terminal in a macro cell according to an embodiment of the present invention, as shown in fig. 7, the method includes the following steps:

step S702, a micro cell measures the radio frequency power on an uplink wireless frame of a macro cell wireless access point on a first frequency band, and constructs a radio frequency power time-frequency distribution map on the uplink wireless frame;

step S704, the micro cell sends a radio frequency power time-frequency distribution map on an uplink wireless frame to a network side;

step S706, the network side determines the radio frequency power or the radio frequency signal intensity of the signal transmitted by the macro cell terminal and received by the micro cell by using the radio frequency power time frequency distribution map and combining the time frequency position parameter of the uplink channel configured on the first frequency band for the macro cell terminal by the network side;

preferably, the step S702 of measuring the radio frequency power on the uplink radio frame of the macrocell radio access point by the microcell includes the following steps:

step 1, a measurement unit configured in a microcell acquires frame structure information of an uplink radio frame and frame header starting time information of the uplink radio frame.

The method for acquiring the frame structure information of the uplink wireless frame and the frame header starting time information of the uplink wireless frame in the step 1 is characterized by comprising the following steps:

(1) acquiring structure information of an uplink radio frame, specifically, acquiring structure information of the uplink radio frame through a downlink channel of a macro cell or through a backhaul channel of a micro cell wireless access point, where the structure information of the uplink radio frame specifically includes one or more of the following parameters: the radio frame belongs to the radio system type, and the parameter configuration (duration, bandwidth) of the uplink radio frame.

(2) The method comprises the steps of obtaining starting time information of an uplink wireless frame, specifically, realizing synchronization with a macro cell air interface through a downlink synchronous channel of a macro cell wireless access point, determining frame header starting time of the downlink wireless frame according to a downlink wireless frame structure and time configuration of the downlink synchronous channel on the wireless frame, and then determining the starting time of the uplink wireless frame according to the time corresponding relation between the uplink wireless frame and the downlink wireless frame of the macro cell wireless access point.

And 2, a measurement unit configured in the microcell measures the power of the radio frequency signal on the uplink radio frame or the signal strength according to a preset time-frequency position and a measurement mode. Preferably, the measurement unit configured in the micro cell includes one of: a receiver configured on a first frequency band by a micro cell wireless access point covering a micro cell; the measuring device is deployed in a microcell and is used for measuring an uplink channel of a macrocell on a second frequency band.

Preferably, in step 2, the power measurement or the signal strength measurement is performed on the radio frequency signal on the uplink radio frame according to a predetermined time-frequency position and a predetermined measurement mode, and the measurement may be performed according to one of the following modes:

the measurement mode 1 is that the radio frequency power measurement is carried out on all time slots contained in an uplink wireless frame;

a measurement mode 2, performing radio frequency power measurement on a specific time slot according to resource indication information sent by a network side;

preferably, the constructing a radio frequency power time-frequency distribution map on the uplink radio frame in step S702 includes the following steps:

the first method is as follows: and dividing time-frequency resources contained in the uplink radio frame into a group of time-frequency resource blocks, and using a bitmap to represent radio-frequency power or signal intensity on the time-frequency resource blocks.

The first mode specifically comprises the following steps:

step 1: determining time-frequency position coding of a time-frequency resource block on a wireless frame, wherein the specific coding mode is one of the following modes: (1) one-dimensional coding is carried out according to the time slot sequence of the wireless frame, or the time sequence arrangement is carried out; (2) and performing time-frequency two-dimensional coding according to the time slot of the wireless frame and the position of the orthogonal subcarrier.

Step 2: comparing the measured value of the radio frequency power on the time-frequency resource block on the uplink radio frame with a first power threshold, when the measured value is larger than the first power threshold, representing the radio frequency power on the time-frequency resource block as '1' or '0', and when the measured value is smaller than the first power threshold, representing the radio frequency power on the time-frequency resource block as '0' or '1';

and step 3: and (3) corresponding the '0' or '1' of the time frequency resource block to the time frequency position code of the time frequency resource block one by one.

It should be noted that, the radio frequency power or signal strength on the time frequency resource block is represented by using a bitmap, and for the radio frequency power measurement value on the same uplink radio frame, two or more power thresholds can be adopted to obtain a plurality of bitmaps;

preferably, the value of the first power threshold is changeable, and the network side sends the value of the first power threshold to the micro cell wireless access point;

the second method comprises the following steps: and dividing time-frequency resources contained in the uplink radio frame into a group of time-frequency resource blocks, and performing multi-bit coding on a radio-frequency power value or a signal strength value on each time-frequency resource block to represent.

The second mode specifically comprises the following steps:

step 1: determining time-frequency position coding of a time-frequency resource block on a wireless frame, wherein the specific coding mode is one of the following modes: 1) one-dimensional coding is carried out according to the time slot sequence of the wireless frame, or the time sequence arrangement is carried out; 2) and performing time-frequency two-dimensional coding according to the time slot of the wireless frame and the position of the orthogonal subcarrier.

Step 2: and performing multi-bit coding on the measured value of the radio frequency power on the time-frequency resource block on the uplink radio frame.

And step 3: and the multi-bit codes correspond to the position codes of the time-frequency resource blocks one by one.

Preferably, the sending, by the micro cell wireless node, the radio frequency power time-frequency distribution map on the uplink radio frame to the network side in step S704 includes the following implementation manners:

the first method is as follows: reporting to a network side through a wireless channel between a microcell wireless access point and a macrocell wireless access point;

the second method comprises the following steps: reporting to a network side through a wired channel between a microcell wireless access point and a macrocell wireless access point;

preferably, the parameters reported in the first and second modes include one or a combination of the following parameters: the time sequence number of the uplink radio frame or the parameter representing the occurrence time of the uplink radio frame; acquiring a first power threshold adopted by a radio frequency power time-frequency distribution diagram; and reporting the number of the microcell of the radio frequency power time-frequency distribution graph or the number of the microcell wireless node corresponding to the microcell.

Preferably, the step S706 of determining the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell includes one of the following steps:

in the first mode, a time-frequency resource position parameter which is stored at a network side and allocated to a macro cell terminal on an uplink radio frame is used as an index, and a power indication parameter of the terminal is read on a radio frequency power time-frequency distribution map; or mapping the time-frequency resource position parameters distributed on the uplink radio frame for the macro cell terminal into parameters consistent with the time-frequency position representation parameters of the radio-frequency power time-frequency distribution diagram, and reading the power indication parameters of the terminal on the radio-frequency power time-frequency distribution diagram by using the mapped time-frequency position parameters. The mapping into consistent parameters ensures that the syntax and semantics of the time-frequency resource position representation parameters adopted by the network side after mapping are the same as those of the time-frequency resource position representation parameters adopted by the radio-frequency power time-frequency distribution diagram.

Selecting a terminal using a time-frequency resource block as an uplink transmission from time-frequency resource position parameters which are stored by a network side and allocated to a macro cell terminal on an uplink wireless frame by taking the position parameter of the time-frequency resource block selected on the radio frequency power time-frequency distribution diagram as an index; or, firstly, mapping the time-frequency position representation parameter of the radio-frequency power time-frequency distribution map into a parameter which is consistent with the parameter adopted by the network side for representing the time-frequency resource position distributed by the macro cell terminal on the uplink wireless frame, and then selecting the terminal which uses the time-frequency resource block for uplink transmission from the time-frequency resource position parameter which is stored by the network side and distributed by the macro cell terminal on the uplink wireless frame. The mapping into the consistent parameters ensures that the syntax and the semantics of the time-frequency resource position representation parameters adopted by the radio-frequency power time-frequency distribution diagram after mapping are the same as those of the time-frequency resource position representation parameters adopted by the network side.

Preferably, in this embodiment, the relationship between the operating frequency bands used by the macro cell wireless access point and the micro cell wireless access point is as follows: the downlink of the wireless access point of the macro cell uses a first frequency band, and the uplink of the wireless access point of the macro cell uses a second frequency band; the downlink of the micro-cell wireless access point uses a third frequency band, and the uplink of the micro-cell wireless access point uses a fourth frequency band; the first frequency band is further divided into a first downlink sub-band and a second downlink sub-band; the second frequency band is further divided into a first uplink sub-band and a second uplink sub-band. The first downlink sub-band is located between the second downlink sub-band and the third frequency band; the first uplink sub-band is located between the second uplink sub-band and the fourth frequency band.

Preferably, the distance relationship in the frequency domain between the first frequency band and the third frequency band, or between the second frequency band and the fourth frequency band, includes one of:

1) the frequency bands are adjacent, and the downlink channel and/or the uplink channel of the micro cell and the downlink channel and/or the uplink channel of the macro cell are adjacent in frequency;

2) the frequency bands are not adjacent, and the downlink channel and/or the uplink channel of the micro cell and the downlink channel and/or the uplink channel of the macro cell are not adjacent in frequency;

3) the same frequency is used between the downlink channel and/or the uplink channel of the microcell and the downlink channel and/or the uplink channel of the macrocell in a time division multiplexing mode; or, the same frequency is used between the downlink channel and/or the uplink channel of the micro cell and the downlink channel and/or the uplink channel of the macro cell in a spatial frequency multiplexing mode.

Preferably, the Radio Access Technologies (RATs) deployed on the first frequency band and the second frequency band may be the same radio access technology or different radio access technologies.

Preferably, the first power threshold is used to quantize the radio frequency power of the macro cell uplink radio frame received by the micro cell. Generally, the radio frequency power on the uplink radio frame of the macro cell mainly includes the radio frequency power at a measurement point in a micro cell along a transmission signal path of a macro cell terminal served by the macro cell. The first power threshold of (2) is a threshold which can be adjusted, and the typical value range is within-100 dBm to 20 dBm.

Preferred embodiment two

The present embodiment provides a method for configuring channel resources for a terminal, which is based on a method for determining power of a macro cell terminal for determining that a transmission signal of the macro cell terminal reaches a micro cell in a preferred embodiment, and the method includes:

step S802: determining the channel state between the macro cell terminal and the micro cell wireless access point, and judging the channel state between the macro cell terminal and the micro cell wireless access point according to the radio frequency power or the radio frequency signal strength transmitted by the macro cell terminal received by the micro cell, wherein the channel state comprises one or more of the following judgment:

judging a channel state I and judging a candidate communication channel;

judging a channel state II, namely judging a potential adjacent channel interference channel;

judging a channel state, namely judging a potential space frequency multiplexing channel;

step S804: and according to the judgment result, configuring channel resources for the terminal according to one or more of the following modes:

resource allocation one: allocating channel resources for the terminal on the micro-cell wireless node;

and resource allocation II: assigning resources for inhibiting adjacent channel interference to a macrocell terminal on a macrocell wireless access point;

and (3) resource allocation: allocating resources used by a macro cell terminal to a terminal on a micro cell wireless access point in a space frequency multiplexing mode;

preferably, for the channel state judgment one, the candidate communication channel judgment includes the following steps:

the network side compares the radio frequency power or the radio frequency signal strength of signals transmitted by the macro cell terminal and received by the micro cell with a first judgment threshold of a preset potential uplink channel, and judges the micro cell wireless node as a candidate uplink communication channel between the micro cell wireless node and the macro cell terminal when the radio frequency power strength received by the micro cell is greater than or equal to the preset threshold; or,

the network side compares the radio frequency power or the radio frequency signal strength of signals transmitted by the macro cell terminal and received by the micro cell with a preset first decision threshold of a potential uplink channel, and further calculates the power ratio of the micro cell to the macro cell after the signals are more than or equal to the first decision threshold of the potential uplink channel: the radio frequency power or the radio frequency signal strength of the signals transmitted by the terminal of the macro cell received by the micro cell is divided by the radio frequency power or the radio frequency signal strength of the terminal of the macro cell received by the wireless node of the macro cell. Comparing the power ratio of the micro-cell macro-cell with a predetermined second decision threshold of the potential uplink channel, and when the power ratio is greater than or equal to the predetermined second decision threshold of the potential uplink channel, deciding the micro-cell wireless node as a candidate uplink communication channel between the micro-cell wireless node and the macro-cell terminal;

preferably, for the first channel state judgment and the candidate communication channel judgment, the step of assigning channel resources to the terminal at the micro cell wireless node comprises the following steps: and under the condition that the judgment result is that the candidate uplink communication channel exists, allocating uplink channel resources for the terminal on the micro-cell wireless node.

Preferably, for the channel status judgment one, the candidate communication channel judgment includes the following steps:

1) the network side selects one or more micro cells from a group of micro cells according to the sequence from large to small of the radio frequency power or the radio frequency signal strength received by the group of micro cells and transmitted by the same macro cell terminal;

2) and the network side sends the identification number or the cell identification number of the microcell wireless access point corresponding to the selected one or more microcells to the macrocell terminal, starts the measurement of the signals transmitted by the microcell or microcell wireless access point by the macrocell terminal, and reports the measurement result to the network side.

3) And the network side judges one or more than one micro cells of which the signal intensity measured by the macro cell terminal is greater than the judgment threshold of the potential service cell as candidate service cells of the macro cell terminal according to the measurement result reported by the macro cell terminal.

Preferably, for the first channel state judgment and the candidate communication channel judgment, the step of assigning channel resources to the terminal at the micro cell wireless node comprises the following steps: and when one or more than one micro cells are candidate serving cells of the macro cell terminal, allocating uplink channel resources for the terminal on the micro cell wireless node.

Preferably, for the channel status decision two, the potential adjacent channel interference channel decision 1, the potential adjacent channel interference channel decision includes the following steps:

when the frequency band used by the micro cell and the first frequency band used by the macro cell belong to adjacent frequency bands, judging the potential uplink adjacent channel interference channel according to the following steps: and the network side compares the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell with a preset potential uplink adjacent channel interference judgment threshold, and judges the macro cell terminal as the macro cell terminal generating potential uplink adjacent channel interference on a receiving channel of a micro cell wireless access point when the radio frequency power strength received by the micro cell is greater than or equal to the potential uplink adjacent channel interference judgment threshold.

Preferably, for the second channel state judgment, the processing 1 of the potential adjacent channel interference channel assigns channel resources to the terminal on the wireless node of the micro cell, and includes the following steps: under the condition that the macro cell terminal is judged to be a macro cell terminal generating potential uplink adjacent channel interference on a receiving channel of the micro cell wireless access point, a network side configures a transmitting channel of the macro cell terminal on an uplink adjacent channel interference suppression sub-frequency band of a first frequency band, and an uplink adjacent channel interference protection frequency band exists between the uplink adjacent channel interference suppression sub-frequency band of the first frequency band and an uplink frequency band of the micro cell wireless access point.

Preferably, for the second channel state judgment, the potential adjacent channel interference judgment 2, the potential adjacent channel interference judgment includes the following steps: when the frequency band used by the micro cell and the first frequency band used by the macro cell belong to adjacent frequency bands, judging a potential downlink adjacent channel interference channel according to the following steps:

2) the network side sends the identification number or the cell identification number of the microcell wireless access point corresponding to the selected one or more microcells to the macrocell terminal, starts the measurement of the signal transmitted by the microcell or the microcell wireless access point by the macrocell terminal, and reports the measurement result to the network side;

3) and the network side judges one or more than one micro cells of which the signal intensity measured by the macro cell terminal is greater than the judgment threshold of the potential downlink adjacent channel interference as the cells generating the potential downlink adjacent channel interference to the macro cell terminal according to the measurement result reported by the macro cell terminal.

Preferably, for the second channel state judgment and the potential adjacent channel interference channel processing 2, assigning channel resources for the terminal on the micro cell wireless node includes the following steps: when more than one micro cell is judged as a cell generating potential downlink adjacent channel interference to a macro cell terminal, a network side configures a receiving channel of the macro cell terminal on a downlink adjacent channel interference suppression sub-frequency band of a first frequency band, and a downlink adjacent channel interference protection frequency band exists between the downlink adjacent channel interference suppression sub-frequency band of the first frequency band and an uplink frequency band of a micro cell wireless access point.

Preferably, for the channel state judgment three, the potential space-frequency reuse channel judgment includes the following steps: when the frequency band used by the micro cell and the first frequency band used by the macro cell belong to the same frequency band, the potential uplink space frequency multiplexing channel judgment is carried out according to the following steps:

and the network side compares the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell with a preset judgment threshold of the potential uplink space frequency multiplexing channel, and judges the macro cell terminal as a terminal capable of using the uplink frequency in a space frequency multiplexing mode with the terminal in the micro cell when the radio frequency power strength received by the micro cell is less than or equal to the judgment threshold of the potential uplink space frequency multiplexing channel.

Preferably, for the channel state judgment two, the potential space-frequency reuse channel processing 1, assigning the resources used by the macrocell terminal in a space-frequency reuse manner includes the following steps: when the macro cell terminal is determined to be a terminal capable of using an uplink frequency in a spatial frequency multiplexing manner with a terminal in the micro cell, the network side assigns the uplink frequency used by the macro cell terminal to a terminal served by the micro cell.

Preferably, the specific way of assigning the uplink frequency used by the macro cell terminal to the terminal served by the micro cell is one of the following ways or a combination of the two ways: the terminal assigned to the micro-cell service is used for sending signals to the micro-cell wireless access point; terminals assigned to microcell services are used to receive signals from microcell wireless access points.

Preferably, for the channel state judgment three, the potential space-frequency reuse channel judgment includes the following steps: when the frequency band used by the micro cell and the first frequency band used by the macro cell belong to the same frequency band, the potential downlink spatial frequency multiplexing channel judgment is carried out according to the following steps:

step 1, a micro cell measures the power or signal intensity of a downlink control channel of a macro cell, a network side compares a measurement result with a potential downlink spatial multiplexing frequency judgment threshold, and if the measurement result is lower than the predetermined threshold, the micro cell is judged to be a potential downlink spatial multiplexing micro cell;

step two, judging the interference of the micro cell to the macro cell terminal, wherein the step two comprises the following steps:

1) the network side selects one or more macro cell terminals with power lower than a first threshold of the interference judgment of the micro cell of the preset macro cell from a time-frequency distribution graph reported by the micro cell,

2) the network side controls the measurement of the signal transmitted by the micro-cell wireless access point by the selected one or more macro-cell terminals, and reports the measurement result to the network side;

3) and the network side judges one or more than one macrocell terminals with the received microcell signal strength smaller than a preset macrocell microcell interference judgment second threshold as terminals for multiplexing with the microcell spatial frequency according to the measurement result reported by the macrocell terminals.

Preferably, for the second channel state judgment, the potential space-frequency reuse channel processing 2, the assigning the resources used by the macrocell terminal in a space-frequency reuse manner includes the following steps: when the macro cell terminal is determined to be a terminal that can use downlink frequency in a manner of spatial frequency multiplexing with the terminal in the micro cell, the network side assigns the downlink frequency used by the macro cell terminal to the terminal served by the micro cell.

Preferably, the specific way of assigning the downlink frequency used by the macro cell terminal to the terminal served by the micro cell is one of the following ways or a combination of the two ways: a terminal assigned to the microcell service for receiving signals from the microcell wireless access point; terminals assigned to the microcell service are used to transmit signals to the microcell wireless access point.

Preferably, the first decision threshold of the potential uplink channel is a real number representing power or signal strength, and a typical value range is: -80dBm to 10 dBm.

Preferably, the potential uplink channel second decision threshold is a ratio of a signal received by the micro cell and transmitted by the macro cell terminal to a signal received by the macro cell, and is a real number, and a typical value range of the potential uplink channel second decision threshold is: 10dB to 40 dB.

Preferably, the potential serving cell decision threshold is a real number representing power or signal strength, and a typical value range is: -70dBm to 10 dBm.

Preferred embodiment three

The present embodiment provides a method for monitoring the arrival power of signals transmitted by a macro cell terminal between different wireless systems deployed in adjacent frequency, in which in this embodiment, a macro cell operates in a first frequency band, a micro cell operates in a second frequency band, and different radio access technologies are deployed in the first frequency band and the second frequency band. Specifically, the downlink frequency band in the first frequency band is a UMTS HSDPA system on an 800MHz frequency band, two downlink carriers are configured on a 10MHz bandwidth, and the bandwidth of each carrier is 5 MHz; the downlink frequency band in the second frequency band is a frequency band of the LTE system adjacent to a frequency band of 10MHz bandwidth used by the UMTS system in the 800MHz frequency band, and the microcell wireless access point of the LTE system is configured with 1 downlink carrier on 20MHz bandwidth and is adjusted to 20MHz bandwidth. In this embodiment, the uplink frequency band in the first frequency band is a frequency band with a bandwidth of 10MHz on an 800MHz frequency band, and two UMTS HSDPA carriers with a bandwidth of 5MHz are configured; the UMTS system and the LTE system belong to the same operator.

It should be noted that, in this embodiment, at least one macro cell terminal is further included, and the macro cell terminal of the present invention refers to a terminal having a wireless link with a macro cell, where the terminal supports at least the UMTS HSDPA wireless access technology.

Preferably, within the microcell, there may be a measuring device that measures the time-frequency distribution of the radio frequency power on the uplink radio frame over the 10MHz bandwidth uplink frequency band used by the HSDPA system.

The measuring device comprises a receiving channel supporting the radio access technology specification of the UMTS terminal and a receiving channel supporting the radio access technology of the UMTS base station side. The receiving channel of the UMTS base station side radio access technology can be realized in one of the following ways:

a receiving channel configured specifically for performing radio frequency power measurement on a UMTS uplink radio frame on a first frequency band;

the micro-cell wireless access point is a UMTS and LTE dual-mode wireless access point, and the radio frequency power measurement on a UMTS uplink wireless frame is realized by directly utilizing a UMTS receiving channel of the dual-mode wireless access point.

Under the system configuration given in this embodiment, an implementation manner of determining the radio frequency power or the radio frequency signal strength of the signal transmitted by the macro cell terminal and received by the micro cell is as follows:

step S902: the micro cell measures the radio frequency power on an uplink wireless frame of a macro cell wireless access point on a first frequency band, and constructs a radio frequency power time-frequency distribution graph on the uplink wireless frame.

Specifically, a measuring device in a microcell firstly realizes cell synchronization with a UMTS macrocell deployed on a first band, a UMTS terminal receiver in the measuring device searches a synchronization signal sent on a downlink frequency band, cell search and residence on the first frequency band are completed, and the starting time of a frame header of a UMTS uplink radio frame is determined according to a frame structure of UMTS; further, acquiring the number or sequence number information of a radio frame on the UMTS uplink radio frame through a system broadcast channel; simultaneously or respectively measuring the radio frequency power of an uplink radio frame on two UMTS carriers configured on a 10MHz bandwidth of a first frequency band, and constructing a bitmap representing the radio frequency power time-frequency distribution on a macro cell uplink radio frame on the first frequency band according to a preset power threshold;

step S904, the micro cell sends the radio frequency power time-frequency distribution map on the uplink radio frame to the network side.

In step S904, the micro cell wireless access point reports the rf power time-frequency distribution map on the uplink wireless frame to the network side through its wired backhaul link or through the transmission channel of the UMTS terminal configured by the micro cell. Specifically, the method for constructing the radio frequency power time-frequency distribution map on the UMTS uplink radio frame on the macro cell comprises the following steps: and constructing a radio frequency power time-frequency distribution graph by taking a time-frequency resource block on an uplink radio frame carried by a carrier on a 5MHz frequency band as a set. The division of time-frequency resource blocks on an uplink radio frame of the UMTS system is as follows: time scale of time frequency resource block is time slot or TTI; the modulation bandwidth of one UMTS carrier is taken as the frequency scale of a time-frequency resource block on the frequency. And establishing a one-to-one correspondence relationship between the positions of the time-frequency resource blocks and the time scale of the uplink radio frame, establishing a one-to-one correspondence relationship between the time-frequency resource blocks and the radio frequency power measured on the time-frequency resource blocks, and coding and representing the two one-to-one correspondence relationships to form a radio frequency power time-frequency distribution graph.

Preferably, the micro cell reports the identification information of the uplink radio frame of the radio frequency power time-frequency distribution graph to the network side, for example: and reporting the number or the serial number of the radio frame measured by the obtained radio frequency power time-frequency distribution diagram. Or reporting the micro cell identification to the network side so that the network side determines that the radio frequency power time-frequency distribution graph is reported by the micro cell.

Step S906: and the network side determines the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell by using the radio frequency power time-frequency distribution graph and combining the time-frequency position parameters of the uplink channel configured on the first frequency band for the macro cell terminal by the network side.

Specifically, the method comprises the following steps: and a wireless resource management unit at the network side selects a time-frequency resource block with the power exceeding the threshold of-50 dBm from the radio frequency power time-frequency distribution diagram, and determines the terminal using the time-frequency resource block according to the information of allocating the time-frequency resource to the macro cell terminal on the uplink frequency band of the first frequency band, thereby determining the radio frequency power or the radio frequency signal intensity of the transmitting signals of the macro cell terminal received by the micro cell. The threshold of-50 dBm is an example, and different threshold values may be used for different system settings, for example, in the case of interest only to macro cell terminals that potentially generate strong adjacent channel interference to the micro cell, the decision threshold may be set to a value required for suppressing the adjacent channel interference. If the signal power of the microcell terminal received by the microcell is-60 dBm, the out-of-band leakage indicator (ACLR) of the macrocell terminal is 30dB, the microcell requires that the out-of-band leakage power of the macrocell is 20dB higher than the useful received signal (implicitly requires that the out-of-band leakage power of the macrocell is lower than-60 dBm +20 dBm-40 dBm), since the ACLR of the macrocell terminal is 30 dBm, the maximum arrival power of the macrocell terminal on the adjacent frequency band received by the microcell is-10 dBm, which is the decision threshold under the condition, and if the power of the signal on the uplink radio frame on the microcell on the first frequency band received by the microcell is higher than the threshold, the signal will generate more than the specified out-of-band leakage interference on the uplink channel of the microcell.

Preferred embodiment four

In this embodiment, the macro cell operates in a first frequency band, the micro cell operates in a second frequency band, and the systems that use the same radio access technology are deployed on the first frequency band and the second frequency band, for example, LTE systems are deployed on the first frequency band and the second frequency band, but the duplex mode adopted by the systems may be one of the following modes: the first method is as follows: the LTE TDD system is deployed on the first frequency band, and the LTE TDD system is deployed on the second frequency band; the second method comprises the following steps: an LTE TDD system is deployed on the first frequency band, and an LTE FDD system is deployed on the second frequency band; the third method comprises the following steps: an LTE FDD system is deployed on the first frequency band, and an LTE TDD system is deployed on the second frequency band; the method is as follows: the first frequency band is deployed with an LTE FDD system, and the second frequency band is deployed with the LTE FDD system. In this embodiment, a mode four system configuration mode is adopted, and the first frequency band and the second frequency band are adjacent frequency bands belonging to different operators. And the first frequency band and/or the second frequency band is used for both macro cell coverage and micro cell coverage, the macro cell and the micro cell use the first frequency band and/or the second frequency band in a time division manner; and the first frequency band and the second frequency band belong to different operators, and the micro-cell wireless access point on the first frequency band and the micro-cell wireless access point on the second frequency band are not co-sited.

Specifically, in this embodiment, the downlink frequency band in the first frequency band is an lte fdd system on a frequency band from 2621MHz to 2640MHz, and a macro cell wireless access point of the system configures a downlink carrier on a 20MHz bandwidth; the downlink frequency band in the second frequency band is an LTE FDD system on a frequency band from 2641MHz to 2660MHz, and the system deploys at least one microcell wireless access point on the frequency band from 2641MHz to 2660 MHz.

Preferably, in this embodiment, the present invention further includes at least one macro cell terminal, where the macro cell terminal refers to a terminal that has a wireless link with a macro cell on the first frequency band, and the terminal supports the LTE FDD radio access technology.

And a measuring device is deployed in the microcell on the second frequency band, and the measuring device measures the time-frequency distribution of the radio frequency power on the uplink radio frame on the uplink frequency band corresponding to the downlink frequency band of the first frequency band. In this embodiment, the uplink band corresponding to the downlink band of the first frequency band is a band in a range of 2570MHz to 2590MHz, and the uplink band of the microcell in the second frequency band is a band in a range of 2590MHz to 2610 MHz.

In this embodiment, the measurement apparatus includes a terminal receiving channel supporting the LTE rat specification, and a receiving channel supporting the LTE bs-side rat. The terminal receiving channel supporting the LTE wireless access technical specification is an LTE terminal receiver which realizes the synchronization with the macro cell downlink wireless frame on the first frequency band according to a cell synchronization method specified by an LTE protocol, acquires the starting time of the downlink wireless frame and further deduces the starting time of the macro cell uplink wireless frame on the first frequency band. The measurement bandwidth of the terminal receiving channel on the second frequency band is assigned by the network side, and the specific assignment mode is one of the following modes:

the first method is as follows: and reading the cell broadcast information on the first frequency band, and acquiring the width of the first frequency band from the cell broadcast information.

The second method comprises the following steps: obtained from a downlink channel of the wireless access point on the second frequency band or obtained from a backhaul channel of the wireless access point on the second frequency band.

In this embodiment, the network side sends a measurement control command for the uplink radio frame of the macro cell to the micro cell through a backhaul of the micro cell wireless access point, and specifies one or a combination of the following parameters for the measurement of the micro cell:

a measured frequency band;

the measuring method comprises the following steps: measuring the whole uplink radio frame or a part of the uplink radio frame;

constructing a judgment threshold used by a radio frequency power time-frequency distribution graph of a first frequency band uplink radio frame used by a macro cell;

the reporting mode of the radio frequency power time frequency distribution diagram is as follows: whether to report a power higher than or equal to the decision threshold, or to report a power lower than the decision threshold, or to report both powers.

Preferably, the implementation of the receiving channel of the LTE base station side radio access technology may be one of the following ways: a receiving channel configured to measure radio frequency power on an LTE uplink radio frame on a first frequency band; or the micro-cell wireless access point is a wireless access point which can support uplink access of the LTE terminal on the first frequency band, and the radio frequency power measurement on the uplink wireless frame on the first frequency band is directly realized by using a receiving channel of the wireless access point.

step S1002: the micro cell measures the radio frequency power on an uplink wireless frame of a macro cell wireless access point on a first frequency band, and constructs a radio frequency power time-frequency distribution graph on the uplink wireless frame.

Specifically, the method comprises the following steps: the method comprises the following steps that a measuring device in a microcell firstly realizes cell synchronization with a macrocell (an LTE macrocell here) deployed on a first band, specifically, an LTE terminal receiver in the measuring device searches a synchronization signal sent on a downlink frequency band, completes search and residence of the macrocell on the first frequency band, determines the starting time of an LTE downlink wireless frame according to the time position of a cell synchronization channel in an LTE frame structure, and further calculates the starting time of a frame head of an uplink wireless frame; further, the number or the serial number information of the current downlink radio frame of the LTE system is obtained from the downlink channel of the macro cell, and the number or the serial number information of the radio frame on the uplink radio frame is further deduced.

The method comprises the steps of measuring the radio frequency power of an uplink radio frame on an uplink frequency band of a first frequency band, wherein one measuring method is a method for measuring the uplink signal power by using a base station specified in LTE technical specifications, and the measuring scale is a time-frequency scale supported in the measurement of the uplink signal power by the base station specified in the LTE technical specifications.

Preferably, the radio frequency power on the specific time frequency resource block is quantized according to a predetermined power threshold, and the quantized radio frequency power on the specific time frequency resource on the uplink radio frame is coded and represented by adopting the consistent syntax and semantics of the time frequency resource position representation of the LTE uplink radio frame, so as to construct a radio frequency power time frequency distribution bitmap on the macrocell uplink radio frame on the first frequency band.

Step S1004, the microcell sends a radio frequency power time-frequency distribution map on an uplink wireless frame to a network side; and reporting the radio frequency power time-frequency distribution diagram on the uplink radio frame to a network side by the micro-cell wireless access point through a wired backhaul link of the micro-cell wireless access point or through a transmitting channel of the LTE terminal configured by the micro-cell. In this embodiment, a time frequency Resource Block (RB) specified by an LTE specification is used as the minimum time frequency unit for measurement. And establishing a one-to-one correspondence relationship between the positions of the time-frequency resource blocks and the time scale of the uplink radio frame, establishing a one-to-one correspondence relationship between the time-frequency resource blocks and the radio frequency power measured on the time-frequency resource blocks, and coding and representing the two one-to-one correspondence relationships to form a radio frequency power time-frequency distribution graph.

Preferably, the micro cell reports the identification information of the uplink radio frame of the radio frequency power time-frequency distribution graph to the network side, for example, reports the number or the serial number of the radio frame measured by the obtained radio frequency power time-frequency distribution graph; or reporting the micro cell identification to the network side so that the network side determines that the radio frequency power time-frequency distribution graph is reported by the micro cell.

Step S1006: and the network side determines the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell by using the radio frequency power time-frequency distribution graph and combining the time-frequency position parameters of the uplink channel configured on the first frequency band for the macro cell terminal by the network side.

Specifically, the method comprises the following steps: the radio resource management unit at the network side selects a time-frequency resource block of which the power exceeds a threshold, for example, the threshold is set to be-70 dBm, from the radio frequency power time-frequency distribution diagram, and determines the terminal using the time-frequency resource block according to the information of allocating the time-frequency resource to the macro cell terminal on the uplink frequency band of the first frequency band, so as to determine the radio frequency power or the radio frequency signal strength of the transmission signal of the macro cell terminal received by the micro cell.

Preferred embodiment five

This embodiment provides a method for suppressing uplink adjacent channel interference between a macro cell terminal and a micro cell wireless access point, where this embodiment is based on a method for determining power of a transmitted signal of a macro cell terminal to reach a micro cell, fig. 8 is a schematic diagram of a method for reducing uplink adjacent channel interference between the macro cell terminal and the micro cell access point according to an embodiment of the present invention, and as shown in fig. 8, an uplink channel of the macro cell terminal generating adjacent channel interference to the micro cell is configured outside an isolation frequency band, and an uplink channel of the macro cell terminal having a large propagation path loss with the micro cell wireless access point is configured above the isolation frequency band.

In this embodiment, the channel resources are configured for the terminal according to the following steps.

Firstly, the following steps given by the invention are used for determining the power of a macro cell terminal for transmitting signals to reach a micro cell:

step S1102: the micro cell measures the radio frequency power on an uplink wireless frame of a macro cell wireless access point on a first frequency band, and constructs a radio frequency power time-frequency distribution graph on the uplink wireless frame.

Step S1104: and the micro cell sends the radio frequency power time-frequency distribution map on the uplink wireless frame to the network side.

Step S1106: and the network side determines the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell by using the radio frequency power time-frequency distribution graph and combining the time-frequency position parameters of the uplink channel configured on the first frequency band for the macro cell terminal by the network side.

The uplink frequency band of the first frequency band in which the macro cell operates in steps S1102 to S1106 is a frequency band adjacent to the uplink frequency band of the second frequency band in which the micro cell operates. The micro cell of the LTE system deploys an uplink channel on an uplink frequency band of a second frequency band; and deploying an uplink channel of a macro cell of the LTE system or deploying an uplink channel of a macro cell of the UMTS system on a frequency band adjacent to the uplink frequency band of the second frequency band. When an uplink channel of a macro cell of the UMTS system is deployed on a frequency band adjacent to an uplink frequency band of the second frequency band, one uplink carrier is deployed in each 5MHz bandwidth, and an uplink wireless frame of a wireless access point of the macro cell is configured on each 5MHz bandwidth. And the uplink frequency band of the UMTS system adjacent to the uplink frequency band of the second frequency band comprises a first uplink sub-frequency band and a second uplink sub-frequency band, and the bandwidths of the first uplink sub-frequency band and the second uplink sub-frequency band are both 5 MHz.

After the steps S1102 to S1106 are completed, the radio frequency power or the radio frequency signal strength transmitted by the macro cell terminal received by the micro cell is obtained. Then, the macro cell terminal is assigned resources according to the following steps S908 and S910.

Step S1108 determines a channel state between the macrocell terminal and the microcell wireless access point.

Specifically, according to the radio frequency power or the radio frequency signal strength transmitted by the macro cell terminal received by the micro cell, the channel state between the macro cell terminal and the micro cell wireless access point is judged by the second channel state, that is, the potential adjacent channel interference channel is judged.

Preferably, the specific implementation method of step S1108 is: and the network side compares the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell with a preset potential uplink adjacent channel interference judgment threshold, and judges the macro cell terminal as the macro cell terminal generating potential uplink adjacent channel interference on a receiving channel of a micro cell wireless access point when the radio frequency power strength received by the micro cell is greater than or equal to the potential uplink adjacent channel interference judgment threshold.

In this embodiment, the macro cell terminal is one of the following terminals: a terminal accessing a macro cell by a UMTS wireless access technology; and accessing the terminal of the macro cell by the LTE wireless access technology.

Step S1110: according to the judgment result of the potential adjacent channel interference channel, performing resource configuration II in the following mode, namely allocating resources for inhibiting the adjacent channel interference for the macro cell terminal on the macro cell wireless access point;

preferably, the specific implementation method of step S1110 includes: in step S908, when the macro cell terminal is determined as a macro cell terminal that generates potential uplink adjacent channel interference on the receiving channel of the micro cell wireless access point, the network side configures the transmitting channel of the macro cell terminal on the uplink adjacent channel interference suppression sub-band of the first frequency band, and there is an uplink adjacent channel interference guard band between the uplink adjacent channel interference suppression sub-band of the first frequency band and the uplink frequency band of the micro cell wireless access point.

For the case that the LTE macro cell is deployed on the first frequency band, the uplink adjacent channel interference protection band is one of the following frequency bands: 1) a frequency band adjacent to the first frequency band, the frequency bandwidth being one of a set of bandwidth parameters specified in the LTE specification; 2) a frequency band adjacent to the first frequency band, the frequency bandwidth being the sum of a guard width between the first frequency band and the second frequency band and an uplink frequency bandwidth specified in the LTE specification;

for the case that the UMTS macro cell is deployed on the first frequency band, the uplink adjacent channel interference protection band is one of the following frequency bands: 1) a frequency band of 5MHz width adjacent to the first frequency band; 2) and a frequency band adjacent to the first frequency band, wherein the frequency bandwidth is the sum of the guard width between the first frequency band and the second frequency band and the 5MHz uplink frequency bandwidth specified in the UMTS technical specification.

For the case where an LTE macro cell is deployed on the first frequency band, the macro cell uplink receiver preferably operates as follows: and receiving uplink signals from the first type terminal and the second type terminal in a time division mode.

Preferred embodiment six

Fig. 9 is a schematic diagram of a frequency allocation method for reducing interference between a picocell wireless access point and a macrocell terminal, where, as shown in fig. 9, a downlink channel of the macrocell terminal interfered by a picocell adjacent frequency is allocated outside an isolation frequency band, and a downlink channel of the macrocell terminal having a large propagation path loss with the picocell wireless access point is allocated on the isolation frequency band.

In this embodiment, channel resources are configured for a terminal according to the following steps:

step S1202: the micro cell measures the radio frequency power on an uplink wireless frame of a macro cell wireless access point on a first frequency band, and constructs a radio frequency power time-frequency distribution map on the uplink wireless frame;

step S1204: the micro cell sends a radio frequency power time-frequency distribution map on an uplink wireless frame to a network side;

step S1206: and the network side determines the radio frequency power or the radio frequency signal strength of the signals transmitted by the macro cell terminal and received by the micro cell by using the radio frequency power time-frequency distribution graph and combining the time-frequency position parameters of the uplink channel configured on the first frequency band for the macro cell terminal by the network side.

Step 1202 to step S1206: the downlink frequency band of the first frequency band in which the macro cell operates is a frequency band adjacent to the downlink frequency band of the second frequency band in which the micro cell operates. The system configuration type on the frequency band adjacent to the downlink frequency band of the second frequency band is one of the following types: 1) a micro cell of the LTE system deploys a downlink channel on a downlink frequency band of a second frequency band, and deploys a downlink channel of a macro cell of the LTE system on a frequency band adjacent to the downlink frequency band of the second frequency band; 2) the micro cell of the LTE system deploys a downlink channel on an uplink frequency band of a second frequency band, and deploys a downlink channel of the macro cell of the UMTS system on a frequency band adjacent to the downlink frequency band of the second frequency band.

When the downlink channel of the UMTS system macrocell is deployed on a first frequency band adjacent to the downlink frequency band of a second frequency band, one downlink carrier is deployed within each 5MHz bandwidth. The downlink frequency band of the UMTS system configured on the first frequency band adjacent to the downlink frequency band of the second frequency band includes a first downlink sub-frequency band and a second downlink sub-frequency band, the bandwidths of the first downlink sub-frequency band and the second downlink sub-frequency band are both 5MHz, and the first downlink sub-frequency band of the first frequency band is located between the second downlink sub-frequency band of the first frequency band and the downlink frequency band of the second frequency band.

After the steps S1202 to S1206 are completed, the radio frequency power or the radio frequency signal strength transmitted by the macro cell terminal received by the micro cell is obtained. Then, the macro cell terminal is assigned resources according to the following steps S108 and S1010.

Step S1208: determining channel conditions between a macrocell terminal and a microcell wireless access point

Specifically, according to the received radio frequency power or radio frequency signal strength of the macro cell terminal transmitted by the micro cell, the measurement of the macro cell terminal on the downlink channel of the micro cell wireless access point is started, and at least partially according to the measurement result of the macro cell terminal on the downlink channel of the micro cell wireless access point, the potential downlink adjacent channel interference channel is judged.

Preferably, the specific implementation method in step S1208 is:

In this embodiment, the macro cell terminal is one of the following terminals: and the terminal of the macro cell is accessed by a UMTS wireless access technology, and the terminal of the macro cell is accessed by an LTE wireless access technology.

Step 1210: and performing resource allocation of the continuous downlink adjacent channel interference on the macro cell terminal according to the judgment result of the potential downlink adjacent channel interference channel.

The specific implementation method of step S1210 is:

in step S1208, when the femtocell is determined as a cell generating potential downlink adjacent channel interference to the macrocell terminal, the network side configures the transmission channel of the macrocell terminal on the downlink adjacent channel interference suppression subband of the first frequency band, where there is a downlink adjacent channel interference guard band between the downlink adjacent channel interference suppression subband of the first frequency band and the downlink frequency band of the femtocell wireless access point.

Preferably, for the case that the LTE macro cell is deployed on the first frequency band, the downlink adjacent channel interference protection band is one of the following frequency bands: 1) the frequency band adjacent to the first frequency band is positioned between the downlink frequency band of the second frequency band and the sub-frequency band for inhibiting the downlink adjacent frequency interference; 2) and under the condition that one intersystem guard band exists between the downlink frequency band of the first frequency band and the downlink frequency band of the second frequency band, the downlink adjacent frequency interference guard band is positioned between the intersystem guard band and the downlink adjacent frequency interference suppression sub-band.

Preferably, for the case that the UMTS macro cell is deployed on the first frequency band, the downlink adjacent channel interference protection band is one of the following frequency bands: 1) the frequency band adjacent to the first frequency band is positioned between the downlink frequency band of the second frequency band and the sub-frequency band for inhibiting the downlink adjacent frequency interference, and the frequency bandwidth is a frequency band of 5 MHz; 2) when one inter-system guard band exists between the downlink band of the first frequency band and the downlink band of the second frequency band, the guard band is located between the inter-system guard band and the sub-band for suppressing the downlink adjacent channel interference, and the frequency bandwidth is the sum of the frequency bandwidth of 5MHz and the width of the inter-system guard band.

Preferably, for the case where an LTE macro cell is deployed on the first frequency band, the macro cell uplink receiver operates as follows: and receiving uplink signals from the first type terminal and the second type terminal in a time division mode.

Through the embodiments, a power determination method and a power determination device are provided, which implement channel identification between a terminal served by a macro cell wireless access point and a micro cell wireless access point, and perform adjacent channel interference suppression, and perform frequency space multiplexing.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or they may be separately fabricated into various integrated circuit modules, or multiple modules or steps thereof may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method of power determination, comprising:

a micro cell measures radio frequency power or signal strength on an uplink wireless frame of a wireless access point of a macro cell on a first frequency band, wherein the first frequency band is a frequency band used by a transmitting channel of a terminal served by the macro cell, and the micro cell is located in a coverage area of the macro cell;

the micro cell determines a power time-frequency distribution map of an uplink radio frame on the first frequency band, wherein the power time-frequency distribution map is used for identifying a corresponding relation between the uplink radio frame on the first frequency band and the radio frequency power, or is used for identifying a corresponding relation between the uplink radio frame on the first frequency band and the signal strength;

the micro cell sends the power time-frequency distribution map to network side equipment, wherein the network side equipment determines the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell according to the power time-frequency distribution map and the time-frequency resource position of an uplink radio frame preset by the network side on the first frequency band for the macro cell terminal.

2. The method as claimed in claim 1, wherein the determining, by the micro cell, the power time-frequency distribution map of the uplink radio frame on the first frequency band comprises:

the micro cell divides the time frequency resource corresponding to the uplink wireless frame into a group of time frequency resource blocks;

the micro cell uses a bitmap to identify the radio frequency power on the time frequency resource block; or the micro cell is identified by adopting bit coding for the radio frequency power on each time-frequency resource block.

3. The method of claim 2, wherein the micro cell identifying the radio frequency power on the time-frequency resource block using a bitmap comprises:

the micro cell encodes the position of a time-frequency resource block on the uplink wireless frame;

judging whether the radio frequency power obtained by testing on the time frequency resource block corresponding to the code is greater than a preset threshold or not;

and identifying the power on the time frequency resource block corresponding to the time frequency position code by adopting a bitmap mode according to the judgment result.

4. The method of claim 2, wherein the micro cell identifying with bit coding for radio frequency power on each time-frequency resource block comprises:

and identifying the power on the time frequency resource block corresponding to the time frequency position code by adopting multi-bit codes.

5. The method according to claim 3 or 4, wherein the micro cell encoding the time-frequency resource blocks on the uplink radio frame comprises one of:

the micro cell carries out one-dimensional coding according to the time slot sequence of the uplink wireless frame;

the micro cell carries out coding according to the time sequence of the uplink wireless frame;

and the micro cell performs two-dimensional coding according to the time slot of the uplink wireless frame and the position of the orthogonal subcarrier.

6. The method of claim 1, wherein the micro cell measuring radio frequency power on an uplink radio frame of a radio access point of the macro cell on the first frequency band comprises:

the micro cell acquires frame structure information of the uplink wireless frame and frame header starting time information of the uplink wireless frame;

and measuring the power of the radio frequency signal on the uplink radio frame according to a preset time frequency position by using the frame structure information and the frame header starting time information.

7. The method of claim 6,

the acquiring, by the pico cell, frame structure information of the uplink radio frame includes:

the micro cell acquires the frame structure information of the uplink wireless frame through one of the following channels: a downlink channel of the macro cell or a backhaul channel of a wireless access point of the micro cell;

the acquiring, by the pico cell, frame header start time information of the uplink radio frame includes:

the micro cell synchronizes with an air interface of the macro cell through a downlink synchronous channel of a wireless access point of the macro cell; the micro cell determines the frame header starting time of the downlink radio frame by using the structure of the downlink radio frame and the time configuration of the downlink synchronous channel on the radio frame; and the micro cell determines the frame header starting time of the uplink wireless frame by using the frame header starting time of the downlink wireless frame according to the corresponding relation between the uplink wireless frame and the downlink wireless frame of the macro cell wireless access point.

8. The method of claim 7,

the structure information of the uplink radio frame includes: the method comprises the steps of determining the type of a wireless system to which a wireless frame belongs and/or parameter configuration information of the uplink wireless frame, wherein the parameter configuration information comprises a duration period and a bandwidth.

9. The method of claim 6, wherein measuring the power of the radio frequency signal on the uplink radio frame at a predetermined time-frequency position using the frame structure information and the frame header start time information comprises:

and performing radio frequency power measurement on all time slots included in the uplink radio frame or on a preset time slot according to the resource indication information sent by the network side equipment.

10. A method of power determination, comprising:

a network side device receives a power time-frequency distribution diagram of an uplink radio frame of a macro cell wireless access point on a first frequency band sent by a micro cell, wherein the power time-frequency distribution diagram is used for identifying the uplink radio frame and radio frequency power on the first frequency band, or identifying a corresponding relation between the first frequency band and the uplink radio frame and signal strength, the first frequency band is a frequency band used by a transmitting channel of a terminal served by the macro cell, the radio frequency power is obtained by the micro cell measuring the radio frequency power of the uplink radio frame of the macro cell wireless access point on the first frequency band, and the signal strength is obtained by the micro cell measuring the signal strength of the uplink radio frame of the macro cell wireless access point on the first frequency band;

and the network side equipment determines the radio frequency power of the signal transmitted by the macro cell terminal received by the micro cell according to the power time frequency distribution diagram and the time frequency resource position of an uplink radio frame preset on the first frequency band by the network side for the macro cell terminal.

11. The method of claim 10, wherein the determining, by the network-side device, the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell according to the power time-frequency distribution map and a time-frequency resource location preset by the macro cell terminal on an uplink radio frame on the first frequency band comprises:

taking a position parameter of a time-frequency resource preset on an uplink radio frame of the macro cell terminal on the first frequency band as an index, and determining the power of the time-frequency resource corresponding to the position parameter in the power time-frequency distribution map as the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell; or,

mapping a time-frequency position parameter preset on an uplink radio frame of the macrocell terminal on the first frequency band into a parameter consistent with the position parameter in the corresponding relation, and determining the power of a time-frequency resource at the mapped time-frequency position in the power time-frequency distribution diagram as the radio-frequency power received by the microcell for a signal transmitted by the macrocell terminal;

mapping the position parameter of the time frequency preset by the macro cell terminal on the uplink radio frame on the first frequency band into the parameter consistent with the position parameter in the power time frequency map refers to: and enabling grammar and semantics adopted by the time-frequency position parameters preset on the uplink wireless frame on the first frequency band by the macro cell terminal to be the same as the grammar and semantics adopted by the time-frequency position parameters in the corresponding relation.

12. The method of claim 10, after determining the radio frequency power of the signals transmitted by the macrocell terminal received by the microcell, further comprising:

the network side equipment uses the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell to judge the channel state between the macro cell terminal and the micro cell wireless access point to be one of the following: candidate communication channels, potential adjacent channel interference channels and potential space frequency multiplexing channels;

and the network side equipment allocates channel resources for the macro cell terminal according to the channel state.

13. The method of claim 12, wherein the allocating, by the network side device, the channel resource for the macrocell terminal according to the channel state comprises:

when the channel state is the candidate communication channel, allocating channel resources for the terminal of the macro cell on the wireless node of the micro cell;

when the channel state is the potential adjacent channel interference channel, allocating adjacent channel interference suppression resources to the terminal of the macro cell on the micro cell wireless access point;

and when the channel state is the potential space frequency reuse channel, allocating channel resources for the terminal of the macro cell in a space frequency reuse mode on the wireless access point of the macro cell.

14. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the candidate communication channel comprises:

judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is greater than a first judgment threshold of a preset potential uplink channel;

and if so, determining the channel state as the candidate uplink communication channel.

15. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the candidate communication channel comprises:

judging whether the radio frequency power of a signal transmitted by a terminal of the macro cell and received by the micro cell is greater than a first judgment threshold of a preset potential uplink channel;

if so, judging whether the ratio of the transmitting power of the macro cell terminal to the radio frequency power of the signal transmitted by the macro cell terminal and received by the micro cell is greater than a preset potential uplink channel second judgment threshold again;

16. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the candidate communication channel comprises:

the network side selects one or more micro cells from a plurality of micro cells which transmit the radio frequency power of the terminal of the macro cell according to the sequence of the radio frequency power from large to small;

the network side sends the identifications of the one or more micro cells to the macro cell terminal, and instructs the macro cell terminal to measure the transmission signals of the wireless access points of the micro cells;

the network side judges whether the received measurement result is greater than a judgment threshold of a potential service cell;

17. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the potential adjacent channel comprises:

judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is greater than a preset potential uplink adjacent channel interference judgment threshold or not;

and if so, determining the channel state as the potential adjacent channel interference channel.

18. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the potential adjacent channel comprises:

the network side selects one or more micro cells from a plurality of micro cells reporting the radio frequency power of the macro cell terminal according to the sequence of the radio frequency power from large to small;

the network side sends the identifications of the one or more micro cells to the macro cell terminal, and instructs the macro cell terminal to measure the transmission signals of the wireless access points corresponding to the micro cells;

the network side judges whether the measurement result received by the macro cell terminal is greater than a potential uplink adjacent channel interference judgment threshold or not;

19. The method of claim 13, wherein allocating, at the channel state being the potential adjacent channel interference channel, resources for suppressing adjacent channel interference for the terminal of the macro cell at the micro cell wireless access point comprises:

and the network side configures the transmitting channel of the macro cell terminal on the uplink adjacent channel interference suppression sub-band of the first frequency band, wherein an uplink adjacent channel interference protection frequency band exists between the uplink adjacent channel interference suppression sub-band of the first frequency band and the uplink frequency band of the wireless access point of the micro cell.

20. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the potential space-frequency reuse channel comprises:

judging whether the radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell is less than or equal to a preset potential uplink space frequency multiplexing channel judgment threshold or not;

and if so, determining the channel state as the potential space frequency multiplexing channel.

21. The method of claim 12, wherein determining the channel status between the macrocell terminal and the microcell wireless access point as the potential space-frequency reuse channel comprises:

the network side selects one or more macro cell terminals of which the radio frequency power of the transmitted signals received by the micro cell is lower than a first threshold of preset interference judgment;

the network side indicates the selected macro cell terminal to measure the transmission signal of the micro cell wireless access point;

the network side judges whether the measurement result of the selected macro cell terminal is less than or equal to a preset interference judgment second threshold;

22. The method according to any one of claims 10 to 21, wherein the downlink of the wireless access point of the macro cell uses the first frequency band, the uplink of the wireless access point of the macro cell uses the second frequency band, the downlink of the wireless access point of the micro cell uses the third frequency band, the uplink of the micro cell uses the fourth frequency band, the first frequency band comprises a first downlink sub-band and a second downlink sub-band, and the first downlink sub-band is located between the second downlink sub-band and the third frequency band, the second frequency band comprises: a first uplink sub-band and a second uplink sub-band, the first uplink sub-band located between the second uplink sub-band and the fourth frequency band.

23. A power determination apparatus applied to a micro cell, comprising:

a first measuring module, configured to measure, on a first frequency band, radio frequency power or signal strength on an uplink radio frame of a wireless access point of a macro cell, where the first frequency band is a frequency band used by a terminal served by the macro cell to transmit a signal, and the micro cell is located within a coverage area of the macro cell;

a first determining module, configured to determine a power time-frequency distribution map of the uplink radio frame on the first frequency band, where the power time-frequency distribution map is used to identify a correspondence relationship, in a time-frequency position, between the uplink radio frame on the first frequency band and the radio frequency power measured by the first measuring module, or between the uplink radio frame on the first frequency band and a correspondence relationship, in a time-frequency position, between the uplink radio frame on the first frequency band and the signal strength measured by the first measuring module;

a sending module, configured to send the power time-frequency distribution map to a network side device, where the network side device determines radio frequency power of a signal sent by the macro cell terminal and received by the micro cell.

24. A power determination device applied to a network side device includes:

a receiving module, configured to receive a power time-frequency distribution map of an uplink radio frame of a macro cell wireless access point on a first frequency band, where the power time-frequency distribution map is used to identify radio frequency power measured by the uplink radio frame micro cell on the first frequency band; or is configured to identify a correspondence relationship, in a time-frequency position, between the uplink radio frame on the first frequency band and a signal strength measured by a micro cell, where the first frequency band is a frequency band used by a transmission channel of a terminal served by the macro cell, the radio frequency power is a radio frequency power obtained by the micro cell measuring the uplink radio frame of the macro cell radio access point on the first frequency band, and the signal strength is a signal strength obtained by the micro cell measuring the uplink radio frame of the macro cell radio access point on the first frequency band;

a second determining module, configured to determine, according to the power time-frequency distribution map and a time-frequency resource location preset on an uplink radio frame of the macro cell terminal on the first frequency band, radio frequency power of a signal transmitted by the macro cell terminal and received by the micro cell.