WO2015100719A1

WO2015100719A1 - Method and device for dynamically planning radio signal processing clusters

Info

Publication number: WO2015100719A1
Application number: PCT/CN2014/070032
Authority: WO
Inventors: 杨映红; 郭房富; 徐凌峰
Original assignee: 华为技术有限公司
Priority date: 2014-01-02
Filing date: 2014-01-02
Publication date: 2015-07-09
Also published as: CN104094625B; CN104094625A

Abstract

Provided are a method and device for dynamically planning radio signal processing clusters, comprising: determining, by a network device, at least one interval of the difference in the qualities of signals between a source cell and a neighbouring cell, the difference in the qualities of signals being the difference in the qualities of uplink signals or downlink signals between the source cell and the neighbouring cell of a user equipment which establishes a connection with the source cell and the neighbouring cell at the same time; making statistics on the measured values of the difference in the qualities of the uplink signals or the downlink signals within each interval within a set time window: service rate or traffic or the number of services; determining at least one signal combination processing gain of the source cell and the neighbouring cell according to at least one of the measured values, the signal combination processing gain comprising a tight coupling combination processing gain and a loose coupling combination processing gain; and determining, by the network device, a signal combination processing mode of the source cell and the neighbouring cell according to the tight coupling combination processing gain and the loose coupling combination processing gain. The system capacity is improved, so that the signal combination processing gain is maximized.

Description

Dynamic signal planning method and device for wireless signal processing cluster

Technical field

The present invention relates to communication technologies, and in particular, to a dynamic planning method and apparatus for a wireless signal processing cluster. Background technique

In engineering systems such as radiocommunication, broadcast television, radar, and navigation in aeronautical navigation, it is necessary to use radio waves to transmit information to complete the operation of the entire system. Antennas are the basic devices used to transmit or receive radio waves in these systems.

The signal of a single user equipment (UE) on multiple uplink antennas has multiple merged forms during baseband processing: tightly coupled combining methods such as antenna signal sequence 歹Ll analysis RAKE (RNA-primed, array -based Klenow enzyme assay (RAKE) multipath combining, in-phase orthogonal signal combining, log likelihood ratio signal combining, that is, combining the antenna signals into the same signal processing cluster for processing; loosely coupled combining methods such as multiple antennas Selective combining, that is, combining the antenna signals into different signal processing clusters for processing.

In the prior art, three macrocell antenna signals at the same site are used as a cluster, that is, clusters are classified according to the geographical location of the antenna.

However, this method can only be completed within a limited range of antennas, with low system capacity and increased air interface.

Summary of the invention

Embodiments of the present invention provide a dynamic planning method and apparatus for a wireless signal processing cluster. Increase system capacity to maximize air interface gain.

A first aspect of the embodiments of the present invention provides a dynamic planning method for a radio signal processing cluster, including: determining, by a network device, at least one interval of a signal quality difference between a source cell and a neighboring cell, where the signal quality difference is the source cell a user equipment that establishes a connection with the neighboring cell at the same time, and an uplink signal quality between the source cell and the neighboring cell is poor, or a user equipment that establishes a connection with the source cell and the neighboring cell at the same time a downlink message between the source cell and the neighboring cell Poor quality

The network device counts, within a set time window, at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time in each interval of the signal quality difference between the source cell and the neighboring cell At least one measurement: traffic rate or traffic or number;

Determining, by the network device, the measured value in each interval of the signal quality difference between the source cell and the neighboring cell according to the at least one user equipment that is connected to the source cell and the neighboring cell at the same time a signal combining processing gain of the at least one of the source cell and the neighboring cell, the signal combining processing gain comprising a tight coupling combining processing gain, and a loose coupling combining processing gain; the network device according to at least one of the source cells And the signal combining processing manner of the neighboring cell determines a signal combining processing manner of the source cell and the neighboring cell, where the signal combining processing manner is performing tight coupling and combining processing in the same signal processing cluster, Or loosely coupled processing in different signal processing clusters.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the network device, in the source cell, according to the at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time And determining a signal combining processing gain of the at least one of the source cell and the neighboring cell by using a measured value in each of the intervals of the signal quality of the neighboring cell, including:

And measuring, by the network device, according to the at least one user equipment that is simultaneously connected to the source cell and the neighboring cell, in each interval of a signal quality difference between the source cell and the neighboring cell, and The tight coupling and combining gain factors corresponding to the respective intervals of the signal quality difference between the source cell and the neighboring cell determine the tight coupling and combining processing of the signal between the source cell and the neighboring cell;

Determining, by the network device, a signal combining processing manner of the source cell and the neighboring cell according to a signal combining processing gain of the at least one of the source cell and the neighboring cell, including:

If the tight coupling and processing gain of the source cell and the neighboring cell signal exceeds a set threshold, determining that the source cell and the neighboring cell signal are combined in a tight coupling process in the same signal processing cluster .

With reference to the first aspect, in a second possible implementation manner of the first aspect, the network device, according to the at least one user equipment that establishes a connection with the source cell and the neighboring cell, is in the source cell And determining a signal combining processing gain of the at least one of the source cell and the neighboring cell by using a measured value in each of the intervals of the signal quality of the neighboring cell, including: And measuring, by the network device, according to the at least one user equipment that is simultaneously connected to the source cell and the neighboring cell, in each interval of a signal quality difference between the source cell and the neighboring cell, and The tightly coupled combining gain factor corresponding to each section of the source cell and the neighboring cell with poor signal quality determines the tight coupling and combining processing of the source cell and the neighboring cell signal

And measuring, by the network device, according to the at least one user equipment that is simultaneously connected to the source cell and the neighboring cell, in each interval of a signal quality difference between the source cell and the neighboring cell, and a loosely coupled combining gain factor corresponding to each section of the source cell and the neighboring cell with poor signal quality determines a loose coupling combining processing gain of the source cell and the neighboring cell signal;

If the tight coupling and combining processing gain of the source cell and the neighboring cell signal is higher than the loose coupling combining processing gain of the source cell and the neighboring cell signal, and the source cell and the neighboring cell signal And the signal of the source cell and the neighboring cell is divided into the same one. The difference between the tight coupling and combining processing gain and the loose coupling processing gain of the source cell and the neighboring cell signal is greater than a set threshold. A tight coupling and combining process is performed in the signal cluster, otherwise the signals of the source cell and the neighboring cell are divided into different signal clusters for loose coupling and combining processing.

With reference to the first aspect, any one of the first and second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, the network device determines the source Before at least one interval of poor signal quality of the cell and the neighboring cell, the method further includes:

If the network device uses any one of the cells in the coverage as the source cell, any other cell in the coverage except the source cell is the neighboring cell.

With reference to the first aspect, the first possible implementation of the first and second possible implementation manners of the first aspect, in a fourth possible implementation manner of the first aspect, the signal quality includes: At least one of a symbol signal to interference ratio, a chip signal to interference ratio, a bit energy, and a chip energy.

A dynamic planning apparatus for a wireless signal processing cluster according to a second aspect of the present invention includes: a determining module, configured to determine at least one interval of a signal quality difference between a source cell and a neighboring cell, where the signal quality difference is The uplink signal quality between the source cell and the neighboring cell is poor between the source cell and the neighboring cell, and the source cell and the source cell are The downlink signal quality between the source cell and the neighboring cell is poor between the user equipment in which the neighboring cell establishes connection at the same time;

a statistic module, configured to collect, in a set time window, at least one user equipment that establishes a connection with the source cell and the neighboring cell at each time interval in a signal quality difference between the source cell and the neighboring cell At least one of the following measurements: traffic rate or traffic volume or number;

a processing module, configured to measure, according to the interval that the at least one user equipment that establishes a connection with the source cell and the neighboring cell in each of the source cell and the neighboring cell has poor signal quality, Determining a signal combining processing gain of at least one of the source cell and the neighboring cell, the signal combining processing gain comprising a tight coupling combining processing gain, and a loose coupling combining processing gain; the processing module is further configured to perform according to at least one The signal combining processing gain of the source cell and the neighboring cell determines a signal combining processing manner of the source cell and the neighboring cell, where the signal combining processing mode is performed in the same signal processing cluster Coupling merge processing, or loosely coupled processing in different signal processing clusters.

In conjunction with the second aspect, in a first possible implementation of the second aspect, the processing module is specifically configured to:

And a measured value in each interval of the signal quality difference between the source cell and the neighboring cell, and the source cell, according to the at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time And a tightly coupled combining gain factor corresponding to each interval of the signal quality difference of the neighboring cell determines a tight coupling and combining processing gain of the source cell and the neighboring cell signal;

Determining a signal combining processing manner of the source cell and the neighboring cell according to a signal combining processing gain of the at least one of the source cell and the neighboring cell, including:

With reference to the second aspect, in a second possible implementation manner of the second aspect, the processing module is further configured to:

And a measured value in each interval of the signal quality difference between the source cell and the neighboring cell, and the source cell, according to the at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time And a tightly coupled combining gain factor corresponding to each interval of the signal quality difference of the neighboring cell determines a tight coupling and combining processing gain of the source cell and the neighboring cell signal; And a measured value in each interval of the signal quality difference between the source cell and the neighboring cell, and the source cell, according to the at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time And a loosely coupled combining gain factor corresponding to each interval of the signal quality difference of the neighboring cell determines a loose coupling combining processing gain of the source cell and the neighboring cell signal;

With reference to the second aspect, the first possible implementation manner of the second and the second possible implementation manner, in a third possible implementation manner of the second aspect, the determining the source cell and Before the at least one interval of the signal quality of the neighboring cell is poor, the determining module is further configured to:

If any cell in the coverage area is used as the source cell, other cells in the coverage except the source cell are the neighboring cell.

With reference to the second aspect, the first possible implementation of the second aspect, and the second possible implementation manner, in a fourth possible implementation manner of the second aspect, the signal quality includes: At least one of a symbol signal to interference ratio, a chip signal to interference ratio, a bit energy, and a chip energy.

A third aspect of the embodiments of the present invention provides a dynamic planning apparatus for a wireless signal processing cluster, including: a memory and a processor, the memory is in communication with the processor, the program stores a program code, and the processor is used by The method of the first to fifth possible embodiments of the first aspect is performed by calling the program code stored in the memory.

The method and device for dynamically planning a wireless signal processing cluster provided by the present invention are closely coupled and combined by a signal coupling between a source cell and a neighboring cell by a same signal processing cluster or a loose coupling process of different signal processing clusters. The processing gain, the loose coupling and the processing gain are compared, and the combining mode is determined. Under the premise that the network equipment has limited processing capability, the cell antenna signals with large traffic loads in those switching areas are planned as much as possible to the same signal processing cluster. Coupling and merging, which improves the uplink and downlink reception performance of users in the handover area, thereby maximizing system capacity. DRAWINGS

1 is a schematic diagram of a typical network architecture involved in a dynamic signaling method for a wireless signal processing cluster provided by the present invention;

2 is a flowchart of an embodiment of a method for dynamically planning a wireless signal processing cluster according to the present invention; FIG. ₃ is a schematic structural diagram of an embodiment of a dynamic signal processing device for a wireless signal processing cluster according to the present invention; A schematic structural view of still another embodiment of the device. The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without departing from the inventive scope are the scope of the present invention.

The techniques described herein can be used in a variety of communication systems, such as current 2G, 3G communication systems and next generation communication systems, such as Global System for Mobile Communications (GSM), Code Division Multiple Access (CDMA, Code Division Multiple). Access system, time division multiple access (TDMA, Time Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA), Frequency Division Multiple Access (FDMA), Frequency Division Multiple Addressing system, Orthogonal Frequency OFDMA (Orthogonal Frequency-Division Multiple Access) system, single carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, And other such communication systems.

The user equipment involved in the present application may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or a wireless modem. Other processing equipment. The wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal Computer, for example, can be portable, pocket, handheld, computer built in or car Mobile devices that exchange language and/or data with the radio access network. For example, personal communication services

(PCS, Personal Communication Service) Telephones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistant (PDA), and other devices. A wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point. Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.

A base station (e.g., an access point) referred to in this application may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface. The base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), this application is not limited.

The base station controller may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited in this application.

FIG. 1 is a schematic diagram of a typical network architecture involved in a dynamic signaling method for a wireless signal processing cluster provided by the present invention. In the figure, the hexagon represents a macro cell, the triangle represents the antenna position of the macro cell, the asterisk indicates the micro cell, and the remaining black dots represent the user equipment UE.

2 is a flow chart of an embodiment of a dynamic planning method for a wireless signal processing cluster of the present invention. The method steps shown in Figure 2 are:

Step 201: The network device determines at least one interval of a signal quality difference between the source cell and the neighboring cell, where the signal quality difference is that the user equipment that establishes a connection with the source cell and the neighboring cell is in the source cell and The uplink signal quality between the neighboring cells is poor, or the downlink signal quality between the source cell and the neighboring cell is poor between the user equipment that establishes a connection with the source cell and the neighboring cell at the same time. . The network device may be a device such as a cloud base station or a base station controller. If all the cells shown in FIG. 1 are the coverage of the network device cloud base station or the base station controller, the network device may use any cell in the coverage as the source cell, and use other cells in the coverage area except the source cell as neighbors. The cell, the network device may perform long-term statistics on the signals received by the antennas of the source cell and all neighboring cells, and obtain at least one interval between the source cell in the coverage area and the signal quality of the UE received by the neighboring cell, thereby obtaining The proportion of UEs in the handover area of each pair of cells within the network. The above signal quality may include at least one of a symbol signal to interference ratio, a chip signal to interference ratio, a bit energy, and a chip energy. The signal quality difference involved in the foregoing may be that the uplink signal quality between the source cell and the neighboring cell is poor between the user equipment that establishes the connection with the source cell and the neighboring cell, or may be established simultaneously with the source cell and the neighboring cell. The downlink signal quality of the user equipment between the source cell and the neighboring cell is poor.

Step 202: The network device collects, in a set time window, at least one user equipment that establishes a connection with the source cell and the neighboring cell in each interval of the signal quality difference between the source cell and the neighboring cell. At least one of the following measurements: Service rate or traffic or number.

On the basis of the previous step, the network device traverses all the user equipments, and counts at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time in each interval of the signal quality of the source cell and the neighboring cell. At least one measured value, such as: service rate, traffic volume, or number of user equipments, where the service rate may refer to an average speed of data transmitted by the user equipment UE in the interval (number of bits transmitted per unit time:), service The amount may be an accumulated amount of data transmitted by the user equipment UE in the interval.

Step 203: The measured value of the network device according to the at least one user equipment that establishes a connection with the source cell and the neighboring cell in each interval of the signal quality difference between the source cell and the neighboring cell, Determining a signal combining processing gain of at least one of the source cell and the neighboring cell, the signal combining processing gain comprising a tight coupling combining processing gain, and a loose coupling combining processing enhancement.

Determining a gain of signal combining processing of the source cell and the neighboring cell according to at least one measurement value in each interval of the signal quality difference between the at least one UE that establishes the connection with the source cell and the neighboring cell to the source cell and the neighboring cell And including at least one of a tight coupling combining processing gain or a loose coupling combining processing gain, for the network device to determine a final processing manner according to the tight coupling combining processing gain or the loose coupling combining processing gain. Step 204: The network device determines a signal combining processing manner of the source cell and the neighboring cell according to a signal combining processing gain of the at least one source cell and the neighboring cell, where the signal combining processing mode is Tightly coupled merging in the same signal processing cluster, or loosely coupled merging in different signal processing clusters

The network device determines the signal of the source cell and the neighboring cell to be tightly coupled and combined in the same signal processing cluster according to the tight coupling combining processing gain or the loose coupling combining processing gain obtained in the above steps, or is placed in different The signal processing cluster is loosely coupled and combined.

The dynamic planning method for the wireless signal processing cluster provided by the embodiment, the network device determines at least one interval of the signal quality difference between the source cell and the neighboring cell, and statistics the service volume, the service rate, or the user of the user equipment in each interval. At least one of the numbers, and obtaining signals of the source cell and the neighboring cells for tight coupling and combining gain and loose coupling, and then dynamically selecting a combination manner of signals of the source cell and the neighboring cells according to the gain situation, thereby improving system capacity and enabling Signal consolidation processing is the biggest increase.

Further, based on the embodiment shown in FIG. 2 above, the network device determines the final processing mode according to the tight coupling and combining gain and the loose coupling and combining processing gains:

The measured value of the network device according to the difference between the signal quality of the source cell and the neighboring cell of the at least one user equipment that is simultaneously connected with the source cell and the neighboring cell, and the difference of the signal quality of the source cell and the neighboring cell The tightly coupled combining gain factor corresponding to the interval determines the tight coupling and combining processing gain of the source cell and the adjacent cell signal. The tightly coupled combining gain factor is an existing result obtained by long-term statistics of the network device, and the tightly coupled combined gain factor is input before determining the tight coupling and combining processing gain between the source cell and the neighboring cell.

The network device determines a signal combining processing manner between the source cell and the neighboring cell according to the signal combining processing gain of the at least one source cell and the neighboring cell, and may be, if the source cell and the neighboring cell signal are tightly coupled and combined, the processing gain exceeds the setting. Threshold, determining that the source cell and the neighboring cell are combined in a signal processing manner to perform tight coupling and combining processing in the same signal processing cluster.

The threshold value can be set manually according to the actual situation.

Optionally, the network device determines, according to the measured value in each interval of the signal quality difference between the source cell and the neighboring cell, the at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time, to determine the at least one source cell and the neighboring cell. The signal combining processing gain of the cell can also be:

The network device is based on at least one user equipment that establishes a connection with the source cell and the neighboring cell at the same time. The measured values in the respective intervals of the signal quality difference between the source cell and the neighboring cell, and the tightly coupled combining gain factors corresponding to the respective intervals of the signal quality difference between the source cell and the neighboring cell determine the tight coupling between the source cell and the adjacent cell signal. Combine processing gains.

And the measured value of the network device according to the signal quality difference between the source cell and the neighboring cell of the at least one user equipment that is connected to the source cell and the neighboring cell at the same time, and the signal quality of the source cell and the neighboring cell are poor. The loosely coupled combining gain factor corresponding to each interval determines the loose coupling and processing gain of the source cell and the adjacent cell signal.

Wherein, the tightly coupled combining gain factor and the loosely coupled combining gain factor described above are existing results obtained by long-term statistics of network devices, and a tightly coupled combining gain factor is input before determining a tight coupling and combining processing gain between the source cell and the neighboring cell. , and loosely coupled combined gain factors.

The network device determines, according to the signal combining processing gain of the at least one source cell and the neighboring cell, the signal combining processing manner of the source cell and the neighboring cell: if the tight coupling and the processing gain of the source cell and the neighboring cell signal are higher than the source cell and The loosely coupled processing gain of the adjacent cell signal, and the tight coupling and combining processing gain between the source cell and the neighboring cell signal and the loose coupling processing gain of the source cell and the adjacent cell signal are greater than a set threshold, then The signals of the source cell and the neighboring cell are divided into the same signal cluster for tight coupling and combining, otherwise the signals of the source cell and the neighboring cell are divided into different signal clusters for loose coupling and processing. The threshold value can be set manually according to the actual situation.

The technical solution of the embodiment shown in FIG. 2 is described in detail below by using a specific embodiment, where the network device is a cloud base station. Through the long-term test statistics of the cloud base station, the signal quality of the UE that is connected to the same source and the neighboring cell in the coverage of the cloud base station is statistically obtained, which can reflect the number of UEs or the amount of traffic being switched. The proportion of the distribution in the area, for example: Taking the received signal as an uplink signal as an example, the signal quality may include indicators of the uplink signal such as SIR1 (symbol-to-interference ratio), SIR2 (chip-to-interference ratio), Eb (bit energy) ) or Ec (chip energy) of any one or more. The following table uses SIR1 as an example: Source cell neighboring cell (SIRli-SIRlj) <0 (SIRli-SIRlj) ≡ (SIRli-SIRlj) E 3~ ( SIRli-SIRlj ) E 6~ i i number j UE Number of UEs with 0~3dB UEs and 6dB UEs with 9dB UEs

0 1 7 15 6 5

0 2 8 7 9 6

0 3 12 9 15 12

1 0 J 4 1 1 - IJ 1 2 6 23 3 8

1 3 9 4 12 7

Table 1 Statistics of the number of users in the interval between the source cell i and the adjacent cell j

In Table 1, not all the cases are listed, just a simple example. According to the statistics in the above table, the source cell and the neighboring cell are respectively identified by i, j, and the uplink signal difference to the cell i, j (refers to the uplink of the UE that is connected to the source cell and the neighboring cell at the same time) The signal difference:) is divided into (-∞, 0), [0, 3), [3, 6], (6, 9) intervals, each interval actually represents the formation of the source cell i and the neighboring cell j Different locations in the handover area, within the set time window, record the UEs in the network that are simultaneously connected with the source cell i and the neighboring cell j, and accumulate the symbol-to-interference ratio difference to the source cell i and the neighboring cell j. The number of UEs whose values belong to a certain symbol-to-signal difference interval, for example, the number of UEs that establish a connection with the source cell No. 1 and the neighbor cell No. 0, as shown in the fifth row of the above table.

The cloud base station determines the source cell i and the neighbor according to the number of UEs in the respective intervals of the symbol-to-interference ratio difference between the source cell i and the neighboring cell j of the UE that establishes the connection with the source cell i and the neighboring cell j at the same time. The cell j is closely coupled or processed or loosely coupled. The specific determination process is:

The tight coupling and combining process of the uplink signals of the UE on the two cell antennas in the same signal processing cluster is relatively referred to as the tight coupling combined gain factor, and the tight coupling combining gain is relatively the efficiency gain factor of receiving the uplink signals with only the single cell antenna. The factor is related to the location of the UE in the cloud base station coverage area, that is, the signal quality difference between the UE and the two cells; the uplink signal of the UE in the two cells is loosely coupled and processed in different signal processing clusters. The uplink signal efficiency gain factor received by the single cell is referred to as a loosely coupled combined gain factor, which is related to the location of the UE in the coverage area of the cloud base station, that is, the signal quality difference between the UE and the two cells is related. As shown in Table 2, after the tight coupling and gain factors and the loosely coupled combining gain factors corresponding to different signal quality differences are calculated, the tightly coupled combining gain needs to be input before calculating the tight coupled combining gain and the loosely coupled combining gain. Factor and loose coupling combine gain factors, for example: The tightly coupled combining gain factor and the loosely coupled combined gain factor of the signal combining of the source cell 1 and the neighboring cell 0 when the difference between the symbol and the signal-to-interference ratio of the cell 1 and the neighboring cell 0 are different intervals: the signal quality differential segment tightly coupled combining gain Loose coupling and gain factor

( SIRi-SIRj )

( SIRi-SIRj ) <0 4 1.5

( SIRi-SIRj ) at 0~3dB 2 0.5 ( SIRi-SIRj ) at 3~6dB 1 0

( SIRi-SIRj ) at 6~9dB 0 0

Table 2 The tight coupling combining gain factor and the loose coupling combining gain factor corresponding to the difference between the signal-to-interference ratio of the source cell i and the neighboring cell j are based on the statistical results in Table 1 and Table 2, and the results of Table 1 and Table 2 are taken as The tight coupling combining processing gain for calculating the uplink signal received by the source cell No. 1 and the neighboring cell No. 0 for tight coupling and combining is input.

Specifically, the tight coupling combining processing gain of the tight coupling processing of the source cell No. 1 and the neighboring cell No. 0 can be multiplied by the tight coupling combining gain factor of the tight coupling combining process of the interval of the difference of the signal to interference ratio of each symbol. The number of users in the interval, or the amount of traffic, or the value obtained by the service rate is added, that is, the weighted sum of the tightly coupled combining gain factor of each segment and the following number of UEs, UE service rate synthesis, and at least one of UE traffic is calculated. Obtain the first air interface gain. For example, one of the calculation formulas is as follows:

The first air interface total gain = ∑ first air interface gain factor * [ / E number; wherein, the number of UEs is the number of UEs in each interval corresponding to the difference in signal quality, and may also be the service corresponding to each interval of the signal quality difference The rate or the sum of UE traffic. For example, in Table 1, the difference between the signal to interference ratio of the uplink signal symbol of the source cell No. 1 and the neighboring cell No. 0 is 4 segments, the number of UEs with signal quality difference less than 0 is 14, and the number of UEs at 0 to 3 dB is 11, The number of UEs in 3~6dB is 5, and the number of UEs in 6~9dB is 11. According to Table 2, the tight coupling combined gain factor is 4 when the quality difference is less than 0, and the signal quality difference is 0~3dB. The tight coupling combined gain factor is 2, the tight coupling combined gain factor with signal quality difference is 3~6dB is 1, and the tight coupling combined gain factor with signal quality difference is 6~9dB is 0, then source antenna 1 and 0 can be calculated. The number of adjacent antennas is tightly coupled and the processing gain is:

Tightly coupled and combined processing gain=14*4+11*2+5*1+11*0=83; According to the tight coupling and combining processing gain, the signal of source cell No. 1 and neighboring cell No. 0 can be directly selected for tight coupling. Merge processing.

Optionally, on the basis of the tight coupling and combining processing gain, the same calculation method is used to calculate the loosely coupled combining processing of the difference of the symbol-to-interference ratio of each symbol, the loosely coupled combined gain factor and the number of UEs, UE The weighted sum of at least one of the service rate synthesis and the UE traffic is obtained by the loosely coupled combining processing gain, and the formula is as follows: The total gain of the second air interface = ∑ the second air interface gain factor * [ / E number; wherein the number of UEs is the number of UEs in each interval corresponding to the difference in signal quality, or may be the UE service in each interval corresponding to the difference in signal quality The rate or the sum of UE traffic.

For example: According to Table 2, the loose coupling combined gain factor with the mass difference less than 0 is 1.5, the loose coupling combined gain factor with signal quality difference is 0~3dB is 0.5, and the loose coupling combined gain factor with signal quality difference is 3~6dB. If the signal quality difference is 6~9dB, the loose coupling combined gain factor is 0, then the loose coupling processing gain of No. 1 source antenna and No. 0 adjacent antenna can be calculated as:

Loose coupling and combining processing gain=14*1.5+11*0.5+5*0+11*0=26.5; It is also possible to combine the processing gain according to the tight coupling of the signal of source cell No. 1 and neighboring cell No. 0; A; The loose coupling of the signal between the source cell and the neighboring cell No. 0 combines the processing gain to B, and judges according to the obtained data, and finally selects that the signals of the source cell No. 1 and the neighboring cell No. 0 are closely coupled and processed by the same received signal processing cluster. Or different received signal processing clusters are loosely coupled and combined. The specific choice is:

If the set threshold is X; the tight coupling and combining processing gain is greater than the set threshold, ie, >, the signals of the source cell No. 1 and the neighboring cell No. 0 are tightly coupled and processed by the same signal processing cluster. ; or

The threshold value of the difference between the set tight coupling combining processing gain and the loose coupling combining processing gain is Y; if the difference between the tight coupling combining processing gain and the loose coupling combining processing gain is greater than a set threshold, that is, AB> Y, the signals of the source cell No. 1 and the neighboring cell No. 0 are tightly coupled and processed by the same signal processing cluster;

If the above two conditions are not satisfied, the signals of the source cell No. 1 and the neighboring cell No. 0 are tightly coupled and combined by the same signal processing cluster or loosely coupled by different signal processing clusters.

For example: In the source cell No. 1 and the neighboring cell No. 0 in Table 1, the calculated tight coupling combining processing gain is 83. If the value is greater than the set threshold X, the same signal processing cluster can be directly selected for compactness. Coupling merge processing.

It is also possible to determine whether the difference between the processing gain of the tight coupling and the loose coupling processing is 836.5. 56.5 is greater than the set threshold Y. If the value is greater than Y, the same signal processing cluster is selected to be tight. Closely coupled and processed, otherwise different signal processing clusters can be selected for loose coupling and combining.

For other cells, the same steps are taken to determine what kind of processing.

The same whole process can also be judged by the chip signal to interference ratio, bit energy and chip energy.

The dynamic signal planning method for the wireless signal processing cluster provided by the embodiment is characterized in that the signals of the source cell and the neighboring cells are tightly coupled and combined by the same signal processing cluster or loosely coupled and processed by different signal processing clusters, and the tight coupling and combining process is obtained. Gain, loose coupling, and processing gain comparison, determine the combination mode. Under the premise of limited network equipment processing capacity, the signals of the cells with large traffic load in the coverage area are planned as close to the same signal processing cluster as possible. Merging, which improves the uplink and downlink reception performance of the handover area users, thereby maximizing the system capacity and increasing the signal combining processing gain in one signal cluster.

FIG. ₃ is a schematic structural diagram of an embodiment of a dynamic planning apparatus for a wireless signal processing cluster according to the present invention. As shown in Figure 3, the apparatus of the present invention comprises:

The determining module 31 is configured to determine at least one interval of the signal quality difference between the source cell and the neighboring cell, where the signal quality difference is an uplink between the source cell and the neighboring cell of the user equipment that establishes a connection with the source cell and the neighboring cell at the same time. The signal quality is poor, or the downlink signal quality between the source cell and the neighboring cell is poor between the user equipment that establishes the connection with the source cell and the neighboring cell at the same time;

The statistic module 32 is configured to collect, in the set time window, at least one measured value of at least one user equipment that is simultaneously connected with the source cell and the neighboring cell in the signal quality difference between the source cell and the neighboring cell: Rate or amount of business or number;

The processing module 33 is configured to determine, according to the measured value in each interval of the signal quality difference between the source cell and the neighboring cell, the at least one user equipment that establishes a connection with the source cell and the neighboring cell to determine the at least one source cell and the neighboring The signal combining processing gain of the cell, the signal combining processing gain includes a tight coupling combining processing gain, and the loose coupling combining processing gain;

The processing module is configured to determine a signal combining processing manner of the source cell and the neighboring cell according to the signal combining processing gain of the at least one source cell and the neighboring cell, where the signal combining processing manner is tightly coupled and merged in the same signal processing cluster. Processing, or loosely coupling in different signal processing clusters

Optionally, the processing module 33 is specifically configured to:

According to at least one user equipment that establishes a connection with the source cell and the neighboring cell at the source cell and The measured value in each interval of the signal quality difference of the neighboring cell, and the tightly coupled combining gain factor corresponding to each section of the source cell and the neighboring cell with poor signal quality determine the tight coupling and processing gain of the source cell and the adjacent cell signal ;

Determining a signal combining processing manner between the source cell and the neighboring cell according to the signal combining processing gain of the at least one source cell and the neighboring cell, including:

If the tight coupling of the source cell and the neighboring cell signal and the processing gain exceeds the set threshold, it is determined that the source cell and the neighboring cell signal combining processing mode is tightly coupled and processed in the same signal processing cluster.

Optionally, the processing module is further configured to:

And measuring at each of the intervals in which the signal quality of the source cell and the neighboring cell is poor according to the at least one user equipment that is connected to the source cell and the neighboring cell at the same time, and corresponding to each interval of the signal quality difference between the source cell and the neighboring cell The tightly coupled combining gain factor determines a tight coupling and combining processing gain of the source cell and the neighboring cell signal;

And measuring at each of the intervals in which the signal quality of the source cell and the neighboring cell is poor according to the at least one user equipment that is connected to the source cell and the neighboring cell at the same time, and corresponding to each interval of the signal quality difference between the source cell and the neighboring cell The loosely coupled combining gain factor determines a loosely coupled processing gain of the source cell and the neighboring cell signal;

The network device determines a signal combining processing manner of the source cell and the neighboring cell according to the signal combining processing gain of the at least one source cell and the neighboring cell, including:

If the tight coupling and processing gain of the source cell and the neighboring cell signal is higher than the loose coupling processing gain of the source cell and the neighboring cell signal, and the tight coupling of the source cell and the neighboring cell signal, the processing gain and the source cell and the neighboring If the difference between the loose coupling and the processing gain of the cell signal is greater than the set threshold, the signals of the source cell and the neighboring cell are divided into the same signal cluster for tight coupling and combining, otherwise the signals of the source cell and the neighboring cell are differently divided. The loose coupling process is performed in the signal cluster.

Optionally, before determining at least one interval of the signal quality difference between the source cell and the neighboring cell, the determining module 31 is further configured to:

If any cell in the coverage area is used as the source cell, other cells in the coverage area except the source cell are adjacent cells.

Optionally, the signal quality includes: at least one of a symbol signal to interference ratio, a chip signal to interference ratio, a bit energy, and a chip energy. The dynamic planning device of the wireless signal processing cluster provided by this embodiment corresponds to the method embodiment provided by FIG. 2 of the present invention, and is used to execute the technical solution of the method embodiment shown in FIG. For the dynamic planning method, the principle, and the technical effects, refer to the method embodiment, and details are not described herein again.

4 is a schematic structural diagram of still another embodiment of a dynamic planning apparatus for a wireless signal processing cluster of the present invention. As shown in FIG. 4, the system includes: a memory 41 and a processor 42. The memory is in communication with the processor, the program code is stored in the memory, and the processor is configured to call the program code stored in the memory for execution, and the method embodiment shown in FIG. The technical solution, the dynamic programming method, the principle and the technical effect of the device performing the wireless signal processing cluster can be referred to the method embodiment, and details are not described herein again.

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims

1. A dynamic planning method for wireless signal processing clusters, characterized in that it includes: the network device determines at least one interval in which the signal quality of the source cell and the adjacent cell is different, and the signal quality difference is the difference between the source cell and the adjacent cell. The uplink signal quality between the source cell and the adjacent cell is poor for the user equipment that establishes connection with the adjacent cell at the same time, or the user equipment that establishes connection with the source cell and the adjacent cell at the same time is at the same time. The downlink signal quality between the source cell and the adjacent cell is poor;

The network device counts within a set time window that at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell is less than or equal to the signal quality difference between the source cell and the adjacent cell. At least one measurement value: service rate or service volume or number;

The network device determines based on the measurement value of at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in each interval where the signal quality of the source cell and the adjacent cell is poor. At least one signal combining processing gain of the source cell and the adjacent cell, the signal combining processing gain includes a tightly coupled combining processing gain, a loose coupling combining processing gain; the network device is based on at least one of the source cells. and the signal combining processing gain of the adjacent cell determines the signal combining processing method of the source cell and the adjacent cell, wherein the signal combining processing method is to perform tightly coupled combining processing in the same signal processing cluster, Or perform loosely coupled combined processing in different signal processing clusters.

2. The method according to claim 1, characterized in that, the network device determines whether the connection between the source cell and the adjacent cell is based on at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell. The measured values in each interval of the signal quality difference between adjacent cells are used to determine at least one signal combining processing gain of the source cell and the adjacent cell, including:

The network device is based on the measurement value of at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in each interval in which the signal quality of the source cell and the adjacent cell is different, and The close coupling merging gain factor corresponding to each interval in which the signal quality of the source cell and the adjacent cell is poor determines the close coupling merging processing gain of the source cell and the adjacent cell signal;

The network device determines the signal combining processing method of the source cell and the adjacent cell based on at least one signal combining processing gain of the source cell and the adjacent cell, including:

If the tightly coupled combined processing gain of the source cell and the adjacent cell signals exceeds the set threshold, it is determined that the signal combining processing method of the source cell and the neighboring cell is to perform tightly coupled combining processing in the same signal processing cluster.

3. The method according to claim 1, characterized in that, the network device determines whether the connection between the source cell and the adjacent cell is based on at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell. The measured values in each interval of the signal quality difference between adjacent cells are used to determine at least one signal combining processing gain of the source cell and the adjacent cell, including:

The network device is based on the measurement value of at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in each interval in which the signal quality of the source cell and the adjacent cell is different, and The loose coupling combining gain factor corresponding to each interval in which the signal quality of the source cell and the adjacent cell is poor determines the gain of the loose coupling combining process of the source cell and the adjacent cell signal.

,

;

If the tightly coupled combining processing gain of the source cell and the adjacent cell signals is higher than the loose coupling combining processing gain of the source cell and the adjacent cell signals, and the source cell and the adjacent cell signals The difference between the tightly coupled combining processing gain and the loose coupling combining processing gain of the source cell and the adjacent cell signals is greater than the set threshold value, then the signals of the source cell and the adjacent cell are divided into the same Tight coupling and combining processing is performed in signal clusters; otherwise, the signals of the source cell and the neighboring cell are divided into different signal clusters for loose coupling and combining processing.

4. The method according to any one of claims 1 to 3, characterized in that, before the network device determines at least one interval in which the signal quality of the source cell and the adjacent cell is poor, it further includes:

If the network device considers any cell within the coverage range as the source cell, then any other cell within the coverage range except the source cell will be the adjacent cell.

5. The method according to any one of claims 1 to 3, characterized in that the signal quality includes: at least one of symbol signal-to-interference ratio, chip signal-to-interference ratio, bit energy and chip energy.

6. A dynamic planning device for wireless signal processing clusters, characterized in that it includes: a determination module, configured to determine at least one interval in which the signal quality difference between the source cell and the adjacent cell is the same as that of the source cell. The uplink signal quality between the source cell and the adjacent cell is poor for user equipment that simultaneously establishes a connection between the cell and the adjacent cell, or, a user equipment that simultaneously establishes a connection with the source cell and the adjacent cell. The downlink signal quality of the device between the source cell and the adjacent cell is poor;

A statistics module, configured to count, within a set time window, at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in each interval in which the signal quality of the source cell and the adjacent cell is different. At least one of the following measurement values: service rate or service volume or number;

A processing module configured to measure the measured value of at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in each interval of signal quality difference between the source cell and the adjacent cell, Determine at least one signal combining processing gain of the source cell and the adjacent cell, where the signal combining processing gain includes a tightly coupled combining processing gain and a loose coupling combining processing gain; the processing module is configured to perform the processing according to at least one of the The signal combining processing gain of the source cell and the adjacent cell determines the signal combining processing method of the source cell and the adjacent cell, wherein the signal combining processing method is tightly coupled in the same signal processing cluster. Combined processing, or loosely coupled combined processing in different signal processing clusters.

7. The apparatus according to claim 6, characterized in that, the processing module is specifically configured to: according to at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell, the source cell and the measured values in each interval of the signal quality difference of the adjacent cell, and the closely coupled combining gain factor corresponding to each interval of the signal quality difference of the source cell and the adjacent cell determines the relationship between the source cell and the source cell. The tightly coupled combining processing gain of adjacent cell signals;

Determining the signal combining processing method of the source cell and the adjacent cell according to at least one signal combining processing gain of the source cell and the adjacent cell, including:

If the tightly coupled combining processing gain of the source cell and the adjacent cell signals exceeds the set threshold, it is determined that the source cell and the adjacent cell signal combining processing method is to perform the tightly coupled combining processing in the same signal processing cluster. .

8. The apparatus according to claim 6, characterized in that, the processing module is further configured to: based on the at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in the source cell. and the measured values in each interval of the signal quality difference of the adjacent cells, and The tightly coupled combining gain factor corresponding to each interval in which the signal quality of the source cell and the adjacent cell is poor determines the tightly coupled combining processing gain of the source cell and the adjacent cell signal;

According to the measurement value of at least one user equipment that simultaneously establishes a connection with the source cell and the adjacent cell in each interval of signal quality difference between the source cell and the adjacent cell, and the source cell and the loose coupling combining gain factor corresponding to each interval where the signal quality of the adjacent cell is poor determines the loose coupling combining processing gain of the source cell and the adjacent cell signal;

9. The device according to any one of claims 6 to 8, characterized in that, before determining at least one interval in which the signal quality of the source cell and the adjacent cell is poor, the determination module is further configured to:

Taking any cell within the coverage range as the source cell, then taking other cells within the coverage range except the source cell as the adjacent cells.

10. The device according to any one of claims 6 to 8, characterized in that the signal quality includes: at least one of symbol signal-to-interference ratio, chip signal-to-interference ratio, bit energy and chip energy.

1 1. A dynamic planning device for a wireless signal processing cluster, characterized in that it includes: a memory and a processor, the memory communicates with the processor, the memory stores program code, and the processor is used to call The program code stored in the memory executes the method described in any one of claims 1 to 6.