CN101742539B - Wireless resource allocation method and system - Google Patents

Abstract

The embodiment of the present invention discloses a wireless resource configuration method and system. The method includes: receiving the data signal sent by the sending end; detecting the signal-to-noise ratio of the received signal on the data signal; and according to the signal-to-noise ratio of the signal The detection result judges the validity of the subchannel corresponding to the data signal; when the subchannel corresponding to the data signal is invalid, the base station reassigns the subchannel; when the subchannel corresponding to the data signal is valid, It is also possible to further adjust the number of data signal transmitting antennas at the transmitting end. The technical solution provided by the embodiment of the present invention detects wireless resources and transmission quality through relevant parameters of data signals transmitted in the system, and can properly adjust the configuration of wireless resources according to the detection results, thereby improving the performance of the entire system and ensuring Unobstructed wireless transmission.

Description

A method and system for configuring wireless resources

technical field

The present invention relates to the technical field of mobile communication, and more specifically, to a radio resource configuration method and system.

Background technique

In recent years, with the continuous development of wireless communication networks and technologies, people's demand for high-speed, high-quality services has increased significantly, but at the same time, the contradiction between the sharply increased business needs and limited bandwidth resources has become increasingly prominent. Multiple Antenna Transmission/Multiple Input Multiple Output (MIMO: Multiple Input Multiple Output), as a technology that makes full use of airspace resources, has become a popular technology in future wireless communication systems due to its characteristics of effectively improving system data transmission rate and spectrum efficiency, and improving communication quality. Widely followed and adopted technology. Moreover, due to the Orthogonal Frequency Division Multiplexing (OFDM: Orthogonal Frequency Division Multiplexing) technology improves the spectrum utilization of the carrier, and enhances the ability to resist frequency selective fading and narrowband interference. At present, it has become the key technology of the next generation of mobile communication. At the same time, with the development of hardware development technologies such as large-scale integrated circuits (such as FPGA, etc.) and on-chip design, and the advent of chips with high-speed processing capabilities, wireless communication systems using multi-carrier and multi-antenna technologies have been able to be realized concretely, and for The scheduling and use of resources has also been extended to multiple dimensions such as time, frequency, and space.

However, in current multi-antenna wireless communication systems, signal monitoring and adaptive processing are usually implemented at the physical layer, while resource management and allocation are implemented at the network and Media Access Control (MAC, MediaAccess Control) layer. Therefore, the existing adaptive coding and modulation technology can improve the performance of the system to a large extent, but there are still many deficiencies in resource allocation and other aspects.

At the same time, due to the increase in bandwidth, the frequency selectivity of the channel increases, and in some special scenarios, there will be obvious fading. If the wireless resources cannot be properly configured, the receiving performance of the entire system will decrease, making it difficult to ensure wireless transmission. unimpeded.

Contents of the invention

In view of this, embodiments of the present invention provide a radio resource configuration method and system, so as to realize reasonable configuration of radio resources, thereby ensuring smooth wireless transmission.

The embodiment of the present invention is realized like this:

An embodiment of the present invention provides a wireless resource configuration method, including:

Receive the data signal sent by the sender;

detecting the signal-to-noise ratio of the received signal on the data signal;

judging the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio;

When the subchannel corresponding to the data signal is invalid, the base station reassigns the subchannel;

When the subchannel corresponding to the data signal is valid, perform block error rate detection on the data signal;

When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the sender to increase the high block error rate Time window threshold, reduce the low block error rate time window threshold, and notify the sending end to reduce the number of data signal sending antennas;

When the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of the situation is less than the preset low block error rate time window threshold, notify the sender to reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and notify the sending end to increase the number of data signal sending antennas.

The judging the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio includes:

Comparing the detection result of the signal-to-noise ratio with a preset channel effective threshold, when the detection result of the signal-to-noise ratio is greater than the channel effective threshold, the sub-channel corresponding to the data signal is valid ; When the detection result of the signal signal-to-noise ratio is less than the effective threshold of the channel, the sub-channel corresponding to the data signal is invalid.

The base station reallocates subchannels, including:

The base station uses the proportional fair PF algorithm to reallocate sub-channels.

An embodiment of the present invention provides a wireless resource configuration system, including: a base station and a mobile terminal, wherein,

When the base station is a data signal sending end, the base station is used to send a data signal to the mobile terminal; and when the subchannel corresponding to the data signal is invalid, reassign the subchannel; when the When the subchannel corresponding to the data signal is valid, adjust the block error rate time window threshold and the number of data signal transmission antennas according to the request message of the mobile terminal, wherein, when the detection result of the block error rate is higher than A preset high block error rate threshold, and when the duration of the situation is longer than the preset high block error rate time window threshold, increase the high block error rate time window threshold and reduce the low block error rate time window threshold, And reduce the number of data signal sending antennas; when the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of the situation is less than the preset low block error rate time window threshold , reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and increase the number of data signal transmitting antennas;

The mobile terminal is configured to receive the data signal sent by the base station; detect the signal-to-noise ratio of the received signal for the data signal; The validity of the channel; when the subchannel corresponding to the data signal is invalid, notify the base station to reassign the subchannel; when the subchannel corresponding to the data signal is valid, perform block error on the data signal rate detection, when the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the base station to increase Increase the high block error rate time window threshold, reduce the low block error rate time window threshold, and notify the base station to reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset low error rate Block rate threshold, and when the duration of this situation is less than the preset low block error rate time window threshold, notify the base station to reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and notify The base station increases the number of data signal sending antennas;

or,

When the mobile terminal is the sending end of the data signal, the mobile terminal is used to send the data signal to the base station; when the subchannel corresponding to the data signal is valid, correct the error according to the request message of the base station The block rate time window threshold and the number of data signal transmitting antennas are adjusted, wherein, when the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of this situation is longer than the preset high When the block error rate time window threshold is high, increase the high block error rate time window threshold, reduce the low block error rate time window threshold, and reduce the number of data signal sending antennas; when the detection result of the block error rate is lower than the preset When the low block error rate threshold is set, and the duration of the situation is less than the preset low block error rate time window threshold, reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and increase The number of data signal sending antennas;

The base station is configured to receive the data signal sent by the mobile terminal; detect the signal-to-noise ratio of the received signal for the data signal; the validity of the channel; when the subchannel corresponding to the data signal is invalid, reallocate the subchannel; when the subchannel corresponding to the data signal is valid, perform block error rate detection on the data signal, When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the mobile terminal to increase the high block error rate block rate time window threshold, reduce the low block error rate time window threshold, and notify the mobile terminal to reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of this situation is less than the preset low block error rate time window threshold, notify the mobile terminal to reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and notify all The mobile terminal increases the number of data signal sending antennas.

Compared with the prior art, the technical solution provided by the embodiment of the present invention has the following advantages and characteristics: the technical solution provided by the embodiment of the present invention first detects the received signal-to-noise ratio of the received data signal, and According to the detection result, it is judged whether the sub-channel corresponding to the data signal is valid. If it is invalid, the base station will re-allocate the sub-channel; number adjustment. The technical solution provided by this embodiment can detect wireless resources and data transmission quality through the relevant parameters of data signals transmitted in the system, and can properly adjust the configuration of wireless resources according to the detection results, thereby improving the performance of the entire system and ensuring Unobstructed wireless transmission.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a flow chart of a method for configuring wireless resources provided by an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a wireless resource configuration system provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a base station provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of another base station provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another mobile terminal provided by an embodiment of the present invention;

FIG. 7 is a flowchart of a radio resource configuration method combined with specific scenarios provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of the present invention provides a method for configuring wireless resources. The specific process of the method is shown in FIG. 1, including:

Step 101: receiving the data signal sent by the sending end;

When the base station sends a data signal to the mobile terminal, in step 101, the mobile terminal receives the data signal sent by the base station; but when the mobile terminal sends a data signal to the base station, in step 101, the base station receives the data signal sent by the mobile terminal, The sending end in the following steps may be a base station or a mobile terminal, and the receiving end is the same.

Step 102: detecting the signal-to-noise ratio of the received signal on the data signal;

Step 103: judging the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio;

In step 103, when the receiving end judges the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio, the following methods may be adopted:

The receiving end compares the detection result of the signal SNR with the preset effective threshold of the channel. When the detection result of the signal SNR is greater than the set effective threshold of the channel, the subchannel corresponding to the data signal is is valid, and execute step 104; when the detection result of the signal SNR is less than the set channel effective threshold, the sub-channel corresponding to the data signal is invalid, and execute step 107.

Step 104: Perform block error rate detection on the data signal;

In step 104, after the detection of the block error rate of the data signal is completed, step 105 or step 106 may be performed respectively according to the detection result.

Step 105: When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the sender to increase the high block error rate threshold. Block error rate time window threshold, reduce low block error rate time window threshold, and notify the sender to reduce the number of data signal sending antennas;

Step 106: When the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of the situation is shorter than the preset low block error rate time window threshold, notify the sender to reduce the high Block error rate time window threshold, increase the high block error rate time window threshold, and notify the sender to increase the number of data signal sending antennas;

Step 107: the base station reallocates subchannels.

In step 107, when the base station is the sending end, since the detection of subchannel validity is performed by the mobile terminal, then at this time, the mobile terminal first needs to send a message to the base station requesting to reallocate the subchannel, and the base station redistributes the subchannel according to the message. Adjust the sub-channel; when the mobile terminal is the transmitting end, since the detection of sub-channel validity is performed by the base station, at this time, the base station can directly re-allocate the sub-channel according to the detection result.

In the technical solution provided by the embodiment of the present invention, firstly, by detecting the received signal-to-noise ratio of the received data signal, and judging whether the sub-channel corresponding to the data signal is valid according to the detection result, if invalid, the base station Reallocate the subchannel; and if it is valid, further adjust the block error rate time window threshold of the sending end and the number of data signal sending antennas. The technical solution provided by this embodiment can detect wireless resources and data transmission quality through the relevant parameters of data signals transmitted in the system, and can properly adjust the configuration of wireless resources according to the detection results, thereby improving the performance of the entire system and ensuring Unobstructed wireless transmission.

Correspondingly, the embodiment of the present invention also provides a wireless resource configuration system, the system includes a structure as shown in Figure 2: a base station 201 and a mobile terminal 202, wherein:

When the base station 201 is a data signal sending end:

The base station 201 is configured to send a data signal to the mobile terminal 202; and when the subchannel corresponding to the data signal is invalid, reassign the subchannel; when the subchannel corresponding to the data signal is valid, according to The request message of the mobile terminal 202 adjusts the block error rate time window threshold and adjusts the number of data signal transmission antennas, wherein, when the block error rate detection result is higher than the preset high block error rate threshold, And when the duration of this situation is greater than the preset high block error rate time window threshold, increase the high block error rate time window threshold, reduce the low block error rate time window threshold, and reduce the number of data signal transmitting antennas; When the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of the situation is less than the preset low block error rate time window threshold, reduce the high block error rate time window threshold , Increase the low block error rate time window threshold, and increase the number of data signal transmitting antennas;

The terminal 202 is configured to receive the data signal sent by the base station 201; detect the signal-to-noise ratio of the received signal on the data signal; and judge the subchannel corresponding to the data signal according to the detection result of the signal-to-noise ratio validity; when the subchannel corresponding to the data signal is invalid, notify the base station 201 to reallocate the subchannel; when the subchannel corresponding to the data signal is valid, perform block error on the data signal When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the base station 201 Increase the high block error rate time window threshold, reduce the low block error rate time window threshold, and notify the base station 201 to reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset Low block error rate threshold, and the duration of the situation is less than the preset low block error rate time window threshold, notify the base station 201 to reduce the high block error rate time window threshold and increase the low block error rate time window threshold , and notify the base station 201 to increase the number of data signal transmitting antennas;

When the mobile terminal 202 is a data signal sending end:

The mobile terminal 202 is configured to send a data signal to the base station 201; when the subchannel corresponding to the data signal is valid, check the block error rate time window threshold and the number of data signal sending antennas according to the request message of the base station 201 Adjusting, wherein, when the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, increase the high block error rate block rate time window threshold, reduce the low block error rate time window threshold, and reduce the number of data signal sending antennas; when the detection result of the block error rate is lower than the preset low block error rate threshold, and the situation When the duration is less than the preset low block error rate time window threshold, reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and increase the number of data signal transmitting antennas;

The base station 201 is configured to receive the data signal sent by the mobile terminal 202; detect the signal-to-noise ratio of the received signal for the data signal; the validity of the channel; when the subchannel corresponding to the data signal is invalid, reallocate the subchannel; when the subchannel corresponding to the data signal is valid, perform block error rate detection on the data signal, When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the mobile terminal 202 to increase the high block error rate. block error rate time window threshold, reduce the low block error rate time window threshold, and notify the mobile terminal 202 to reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset low error rate Block rate threshold, and when the duration of this situation is less than the preset low block error rate time window threshold, notify the mobile terminal 202 to reduce the high block error rate time window threshold and increase the low error rate time window threshold, And notify the mobile terminal 202 to increase the number of data signal transmitting antennas.

The radio resource configuration system provided in this embodiment can be used to execute the radio resource configuration method provided in the embodiment of the present invention. For the radio resource configuration process performed by the radio resource configuration system, reference may be made to the radio resource configuration method provided in the embodiment of the present invention.

A wireless resource configuration system provided in this embodiment first detects the received signal-to-noise ratio of the received data signal, and judges whether the sub-channel corresponding to the data signal is valid according to the detection result. , the base station reassigns the subchannels; and if it is valid, it can further adjust the block error rate time window threshold and the number of antennas for data signal transmission. The technical solution provided by this embodiment can detect wireless resources and data transmission quality through the relevant parameters of data signals transmitted in the system, and can properly adjust the configuration of wireless resources according to the detection results, thereby improving the performance of the entire system and ensuring Unobstructed wireless transmission.

The embodiment of the present invention also provides a base station, which includes the structure shown in Figure 3: a first sending unit 301, a first receiving unit 302, a first sub-channel allocation unit 303, a second receiving unit 304, a first window The adjustment unit 305 and the first antenna adjustment unit 306, wherein:

The first sending unit 301 is configured to send a data signal to a mobile terminal;

The first receiving unit 302 is configured to receive a message from the mobile terminal requesting subchannel reallocation when the subchannel corresponding to the data signal is invalid;

The first subchannel allocation unit 303 is configured to re-allocate subchannels;

The second receiving unit 304 is configured to receive a message sent by the mobile terminal to adjust the number of data signal sending antennas;

The first window adjustment unit 305 is configured to adjust the block error rate time window threshold;

The first antenna adjustment unit 306 is configured to adjust the number of data signal sending antennas.

Correspondingly, the embodiment of the present invention also provides a mobile terminal, the mobile terminal includes the structure shown in Figure 4: a third receiving unit 401, a first SNR detection unit 402, a first judging unit 403, a second unit 404, the first block error rate detection unit 405 and the third sending unit 406, wherein,

The third receiving unit 401 is configured to receive a data signal sent by the base station;

The first signal-to-noise ratio detection unit 402 is configured to detect the signal-to-noise ratio of the received signal for the data signal;

The first judging unit 403 is configured to judge the validity of the subchannel corresponding to the data signal according to the detection result of the signal-to-noise ratio;

The second sending unit 404, when the subchannel corresponding to the data signal is invalid, send a message requesting subchannel reallocation to the base station;

The first block error rate detection unit 405 is configured to detect the block error rate of the data signal when the subchannel corresponding to the data signal is valid;

The third sending unit 406 is configured to send a message requiring adjustment of the block error rate time window threshold and the number of data signal sending antennas to the base station according to the detection result of the block error rate.

The above method is the case where the base station is the sending end. When the mobile terminal is the sending end and the base station is the receiving end:

This embodiment also provides a base station, which includes the structure shown in Figure 5: a fourth receiving unit 501, a second signal-to-noise ratio detection unit 502, a second judging unit 503, a second sub-channel adjusting unit 504, a second The second block error rate detection unit 505 and the fourth sending unit 506, wherein,

The fourth receiving unit 501 is configured to receive a data signal sent by the mobile terminal;

The second signal-to-noise ratio detection unit 502 is configured to detect the signal-to-noise ratio of the received signal for the data signal;

The second judging unit 503 is configured to judge the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio;

The second subchannel adjustment unit 504 is configured to reassign subchannels when the subchannel corresponding to the data signal is invalid;

The second block error rate detection unit 505 is configured to detect the block error rate of the data signal when the subchannel corresponding to the data signal is valid;

The fourth sending unit 506 is configured to send a message for adjusting the time window threshold of the block error rate and the number of data signal sending antennas to the mobile terminal according to the detection result of the block error rate.

Correspondingly, this embodiment also provides a mobile terminal, which includes a fifth sending unit 601, a fifth receiving unit 602, a second window adjustment unit 603, and a second antenna adjustment unit 604, wherein:

a fifth sending unit 601, configured to send a data signal to the base station;

The fifth receiving unit 602 is configured to receive a message sent by the base station to adjust the number of data signal sending antennas;

The second window adjustment unit 603 is configured to adjust the block error rate time window threshold;

The second antenna adjusting unit 604 is configured to adjust the data signal sending antenna.

Combining the above methods, systems, devices and specific application scenarios, the technical solutions provided by the present invention will be further described. In this embodiment, it is assumed that the base station is the transmitting end, the mobile terminal is the receiving end, and the base station uses N antennas and F antennas. Carriers transmit data. In order to realize the technical solution provided by the present invention, it is necessary to perform the steps as shown in Figure 7:

Step 701: Establish a wireless link between the base station and the mobile terminal, and allocate sub-channels;

In step 701, a wireless link needs to be established between the base station and the mobile terminal. For example, a wireless link between the two can be established in a random access manner. Carriers are used to transmit data, therefore, the base station also needs to allocate sub-channels. Here, Proportional-Fair (PF, Proportional-Fair) algorithm or Round Robin algorithm can be used to allocate sub-channels. The specific method is described in this paper. Embodiment does not make special limitation.

Step 702: the base station sends a data signal to the mobile terminal through the established wireless link;

In step 702, it can be known from the foregoing that in this embodiment, the base station uses N antennas to transmit data. It should be noted here that the following principles need to be followed during data transmission:

First detect the number of independent data streams to be sent, assuming that the number of independent data streams to be sent is detected to be n, since the base station includes N antennas, then use the total number of antennas and the number of independent data streams to perform a modulo operation, Specifically, Z=N mod n, where Z is the maximum number of repeatable independent data stream groups available. When Z is 1, the codebook is selected according to the number of independent data streams to be sent, and the codebook is selected according to the selected codebook. Encoding, and finally send; and when the value of Z is greater than 1, according to the current channel conditions, select the actual data group repetition data flow number that meets the channel condition requirements, and select the corresponding codebook, and perform according to the selected codebook Encode and finally send.

Step 703: the mobile terminal receives the data signal sent by the base station, and performs sub-channel validity detection on the data signal and decodes the received data signal;

In step 703, after the mobile terminal receives the data signal sent by the base station, it first obtains the signal-to-noise ratio SINR _i of the received signal corresponding to the data signal through the data signal, and compares the obtained value with the preset channel Threshold SINR _f is compared, when SINR _i is greater than channel validity threshold SINR _f , it means that the subchannel corresponding to the data signal is valid, and step 704 is executed; and when SINR _i is less than channel validity threshold SINR _f , it means that the The subchannel corresponding to the data signal is invalid, and step 711 is executed.

In this step, it should be noted that when acquiring the carrier effectiveness threshold SINR _f , it can be acquired according to the performance of the current system, or can be set according to the previous statistical results of the system. In this embodiment , no special requirements.

Step 704: The mobile terminal detects the block error rate of the received data signal, and compares the detection result with a preset relevant threshold;

In step 704, after obtaining the block error rate of the received data signal, the mobile terminal compares the block error rate with a preset block error rate threshold, where the block error rate threshold here can be divided into high Block error rate threshold BLER _H and low block error rate threshold BLER _L , when the block error rate of the data signal is higher than the set high block error rate BLER _H , and the duration of this situation exceeds the preset time When the high block error rate time window threshold _TH , then execute step 705; and when the block error rate of the data signal is lower than the set low block error rate BLER _L , and the duration of this situation exceeds the preset When the low block error rate time window threshold _TL is set, step 707 is executed. When the detected result belongs to other situations, the existing data sending method is kept unchanged.

Step 705: the mobile terminal sends a message to the base station to adjust the block error rate time window threshold, so as to reduce the number of data signal transmitting antennas;

In step 705, the mobile terminal may carry the monitoring result of the block error rate in the block error rate time window threshold adjustment message, and the result triggers the base station to adjust the block error rate time window threshold.

Step 706: The base station adjusts the block error rate time window threshold according to the message sent by the mobile terminal;

In step 706, when adjusting the block error rate time window threshold, the base station first needs to adjust the performance factor of the communication link, where m _H is the high performance factor of the current communication link, and m _L is the current performance factor of the communication link Low performance factor of the communication link, after adjusting the performance factor of the communication link, the new high performance factor of the communication link m _H '=m _H +1, and the new low performance factor of the communication link m _L '=m _L -1.

After completing the adjustment of the communication link performance factor, according to the new communication link performance factor, adjust the block error rate time window threshold in the following manner:

The window adjustment factors ΔT _H and ΔT _L are introduced, where ΔT _H and ΔT _L are obtained by:

${\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}}_{\mathrm{<span\; class="notranslate">\; h</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; MAXH</span>}}}{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; e</span>}}^{\mathrm{<span\; class="notranslate">\; TMAXH</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; h</span>}}}}$

${\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}}_{\mathrm{<span\; class="notranslate">\; L</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; MAXL</span>}}}{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; e</span>}}^{\mathrm{<span\; class="notranslate">\; TMAXL</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; b</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; L</span>}}}}$

Among them, a, b, T _MAXH and T _MAXL are constant factors, which can be obtained statistically according to the actual requirements of the system.

After the calculation of the window adjustment factor is completed, the block error rate time window threshold can be adjusted according to the obtained window adjustment factor, specifically: the adjusted block error rate time window threshold T _H ′=T _MAXH -ΔT _H , T _L '=T _MAXL -ΔT _L .

Step 707: The base station reduces the number of data information sending antennas;

In step 707, after the base station completes the adjustment of the block error rate time window threshold, it needs to reduce the number of data information sending antennas accordingly, that is to say, it needs to correspondingly reduce the number of independent data streams sending, wherein, during the data signal sending In the process of reducing the number of antennas, the number of data signal sending antennas cannot be lower than 1.

Step 708: The mobile terminal sends a message to the base station to adjust the block error rate time window threshold, so as to increase the number of data signal transmitting antennas;

In step 708, the mobile terminal may carry the monitoring result of the block error rate in the block error rate time window threshold adjustment message, and the result triggers the base station to adjust the block error rate time window threshold.

Step 709: the base station adjusts the block error rate time window threshold according to the message sent by the mobile terminal;

In step 706, when adjusting the block error rate time window threshold, the base station first needs to adjust the performance factor of the communication link, where m _H is the high performance factor of the current communication link, and m _L is the current performance factor of the communication link Low performance factor of the communication link, after adjusting the performance factor of the communication link, the new high performance factor of the communication link m _H '=m _H -1, and the new low performance factor of the communication link m _L '=m _L +1.

After completing the adjustment of the communication link performance factor, according to the new communication link performance factor, adjust the block error rate time window threshold in the following manner:

The window adjustment factors ΔT _H and ΔT _L are introduced, where ΔT _H and ΔT _L are obtained by:

${\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}}_{\mathrm{<span\; class="notranslate">\; h</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; MAXH</span>}}}{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; e</span>}}^{\mathrm{<span\; class="notranslate">\; TMAXH</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; a</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; h</span>}}}}$

${\mathrm{<span\; class="notranslate">\; \&Delta;T</span>}}_{\mathrm{<span\; class="notranslate">\; L</span>}}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; T</span>}}_{\mathrm{<span\; class="notranslate">\; MAXL</span>}}}{\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; +</span>{\mathrm{<span\; class="notranslate">\; e</span>}}^{\mathrm{<span\; class="notranslate">\; TMAXL</span>}<span\; class="notranslate">\; -</span>\mathrm{<span\; class="notranslate">\; b</span>}<span\; class="notranslate">\; \&Center\; Dot;</span>{\mathrm{<span\; class="notranslate">\; m</span>}}_{\mathrm{<span\; class="notranslate">\; L</span>}}}}$

Among them, a, b, T _MAXH and T _MAXL are constant factors, which can be obtained statistically according to the actual requirements of the system.

After the calculation of the window adjustment factor is completed, the block error rate time window threshold can be adjusted according to the obtained window adjustment factor, specifically: the adjusted block error rate time window threshold T _H ′=T _MAXH -ΔT _H , T _L '=T _MAXL -ΔT _L .

Step 710: the base station increases the number of data information sending antennas;

In step 710, after the base station completes the adjustment of the window, it needs to increase the number of antennas for transmitting data information correspondingly, that is to say, it needs to correspondingly increase the number of transmitting independent data streams. During the process, the number of data signal sending antennas cannot exceed the total number N of antennas.

In step 707 and step 710, both belong to the base station to change the number of data signal transmitting antennas. Since the selection of transmitting antennas has been introduced in step 702, no further description is given here.

Step 711: the mobile terminal sends a subchannel reallocation message to the base station;

In step 711, the mobile terminal checks the validity of the sub-channel in step 703, and when the detection result indicates that the sub-channel is invalid, the mobile terminal sends a sub-channel reallocation message to the base station.

Step 712: The base station receives the subchannel reallocation message sent by the mobile terminal, and performs subchannel reallocation according to the message.

In step 712, the manner in which the base station allocates subchannels has been explained in step 701, and will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the Including the steps of the foregoing method embodiments; and the aforementioned storage medium includes: ROM (Read-Only Memory, read-only storage memory), RAM (Random Access Memory, random storage memory), magnetic disk or optical disc, etc. various programs that can be stored The medium of the code.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (5)

1. A radio resource configuration method, characterized in that, comprising: Receive the data signal sent by the sender; detecting the signal-to-noise ratio of the received signal on the data signal; judging the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio; When the subchannel corresponding to the data signal is invalid, the base station reassigns the subchannel; When the subchannel corresponding to the data signal is valid, perform block error rate detection on the data signal; When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the sender to increase the high block error rate Time window threshold, reduce the low block error rate time window threshold, and notify the sending end to reduce the number of data signal sending antennas; When the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of the situation is less than the preset low block error rate time window threshold, notify the sender to reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and notify the sending end to increase the number of data signal sending antennas. 2. The method according to claim 1, wherein the determining the validity of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio comprises: Comparing the detection result of the signal-to-noise ratio with a preset channel effective threshold, when the detection result of the signal-to-noise ratio is greater than the channel effective threshold, the sub-channel corresponding to the data signal is valid ; When the detection result of the signal signal-to-noise ratio is less than the effective threshold of the channel, the sub-channel corresponding to the data signal is invalid. 3. The method according to claim 1, wherein the reassignment of subchannels by the base station comprises: The base station uses the proportional fair PF algorithm to reallocate sub-channels. 4. A radio resource configuration method, characterized in that the method comprises: The base station sends a data signal to the mobile terminal; and when the subchannel corresponding to the data signal is invalid, reallocate the subchannel; when the subchannel corresponding to the data signal is valid, according to the request message of the mobile terminal Adjusting the block error rate time window threshold and adjusting the number of data signal transmission antennas, wherein, when the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset When the high block error rate time window threshold is set, increase the high block error rate time window threshold, reduce the low block error rate time window threshold, and reduce the number of data signal sending antennas; when the detection of the block error rate When the result is lower than the preset low block error rate threshold, and the duration of the situation is less than the preset low block error rate time window threshold, reduce the high block error rate time window threshold and increase the low block error rate time Window threshold, increasing the number of data signal sending antennas; The mobile terminal receives the data signal sent by the base station; detects the signal-to-noise ratio of the received signal on the data signal; and judges the effectiveness of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio. property; when the subchannel corresponding to the data signal is invalid, notify the base station to reallocate the subchannel; when the subchannel corresponding to the data signal is valid, perform block error rate detection on the data signal , when the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, notify the base station to increase the high block error rate block rate time window threshold, reduce the low block error rate time window threshold, and notify the base station to reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset low block error rate threshold , and the duration of this situation is less than the preset low block error rate time window threshold, notify the base station to reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and notify the base station Increase the number of data signal sending antennas. 5. A radio resource configuration method, characterized in that the method comprises: The mobile terminal sends a data signal to the base station; when the subchannel corresponding to the data signal is valid, adjust the block error rate time window threshold and the number of data signal sending antennas according to the request message of the base station, wherein, when the When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is longer than the preset high block error rate time window threshold, increase the high block error rate time window threshold, decrease Low block error rate time window threshold, and reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset low block error rate threshold, and the duration of the situation is less than the preset When the low block error rate time window threshold is reached, reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and increase the number of data signal sending antennas; The base station receives the data signal sent by the mobile terminal; detects the signal-to-noise ratio of the received signal on the data signal; and judges the effectiveness of the sub-channel corresponding to the data signal according to the detection result of the signal-to-noise ratio. property; when the subchannel corresponding to the data signal is invalid, reallocate the subchannel; when the subchannel corresponding to the data signal is valid, perform block error rate detection on the data signal, when the When the detection result of the block error rate is higher than the preset high block error rate threshold, and the duration of the situation is greater than the preset high block error rate time window threshold, notify the mobile terminal to increase the high block error rate time window threshold, reduce the low block error rate time window threshold, and notify the mobile terminal to reduce the number of data signal transmission antennas; when the detection result of the block error rate is lower than the preset low block error rate threshold, and When the duration of this situation is less than the preset low block error rate time window threshold, notify the mobile terminal to reduce the high block error rate time window threshold, increase the low block error rate time window threshold, and notify the mobile terminal Increase the number of data signal sending antennas. the

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