CN107105513B - Detection signal detection method and device - Google Patents
Detection signal detection method and device Download PDFInfo
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Abstract
In the detection method and the detection device of the detection signal, the base station sends the DCI to inform all the UE residing at the authorized frequency point and in the DRX state through one wireless frame of the authorized frequency point, so that the UE can detect the quality of the detection signal. All the UEs are informed of detecting signal quality detection through a wireless frame, so that authorized frequency point resources are saved, and the utilization rate of authorized frequency spectrum resources is improved.
Description
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for detecting a sounding signal.
Background
With the rapid development of wireless communication, spectrum resources become more and more strained. In particular, with the development of WLAN (Wireless local Area Network) and WPAN (Wireless Personal Area Network) technologies, more and more people access the internet in a Wireless manner through these technologies. Most of these network technologies operate using unlicensed frequency bands. Due to the rapid development of WLAN and WPAN wireless communication services, unlicensed frequency bands in which these networks operate have become saturated. Other communication services, such as television broadcasting services, require the communication network to provide certain protection from interference of other communication services.
To provide good protection, frequency management departments are specifically assigned specific licensed frequency bands for use by specific communication services. Since most of the spectrum resources are used for the licensed band, the spectrum resources of the unlicensed band are much less. The current spectrum resource allocation method enables some authorized spectrum resources to be relatively more but bear less traffic, resulting in lower usage rate of some authorized spectrum resources. The cognitive radio technology is a new wireless communication technology for solving the problem of spectrum resource shortage caused by the increase of wireless data services, and obtains an authorized spectrum state through spectrum sensing, and if the authorized spectrum state is in an idle state, the frequency band can be reused, so that the use efficiency of spectrum resources is improved.
When the cellular network employs spectrum sensing, uplink and downlink interference levels received by a base station of the cellular network and a User Equipment (UE) on a frequency point are different, and a simple base station spectrum sensing result or a spectrum sensing result reported by the UE cannot normally reflect a use condition of the frequency point. In addition, due to the characteristics of cellular networking, the coverage areas of the base station and the UE for receiving and transmitting the respective wireless signals are intersected but not completely overlapped, so that the interference conditions perceived by the base station, the UE and the UEs are not completely the same. Therefore, for spectrum sharing under cellular networking, there are a lot of hidden node problems, that is, the sending end cannot sense the existence of interference, but the receiving end of its communication is affected by the interference. At present, there is a method for solving hidden node, in which before the UE performs service data transmission, the base station notifies the UE to receive a probe signal at an unauthorized frequency point on a resident subband of the UE, and sends n probe signals at scheduled unauthorized frequency points. And the UE receives the detection signal and feeds back the quality of the detection signal. When a plurality of UEs are scheduled to the unauthorized frequency point to work simultaneously, a large amount of authorized frequency point resources need to be occupied to inform the UEs to receive detection signals at the unauthorized frequency point, and the authorized frequency point resources are wasted.
Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for detecting a sounding reference signal, which are intended to achieve the purposes of saving licensed spectrum resources and providing a utilization rate of the licensed spectrum resources.
In order to achieve the above object, the following solutions are proposed:
a detection method of a sounding signal is applied to a base station, and comprises the following steps:
sending a detection signal DCI (Downlink Control Information) to a user terminal residing in the authorized frequency point and in a DRX (Discontinuous Reception) state through a preset wireless frame of the authorized frequency point, wherein the detection signal DCI comprises Information of a frequency band to be detected and Information of the sending duration of the detection signal;
and receiving the quality of the detection signal fed back by the user terminal.
Preferably, the preset wireless frame specifically includes: radio frame number modulo 20 is equal to 1.
A detection method of a detection signal is applied to a user terminal, and the method comprises the following steps:
receiving a detection signal DCI sent by a base station through a preset wireless frame of an authorized frequency point, wherein the detection signal DCI comprises information of a frequency band to be detected and information of detection signal sending duration;
receiving the detection signal in the corresponding detection frequency band according to the detection signal DCI;
transmitting the quality of the sounding signal to the base station.
Preferably, the preset wireless frame specifically includes: radio frame number modulo 20 is equal to 1.
A sounding signal detection apparatus applied to a base station, the apparatus comprising:
a sending unit, configured to send a DCI (detection signal DCI) to a user terminal residing at an authorized frequency point and being in a DRX state through a preset radio frame of the authorized frequency point, where the DCI includes information of a frequency band to be detected and information of a sending duration of the DCI;
and the receiving unit is used for receiving the quality of the detection signal fed back by the user terminal.
Preferably, the preset wireless frame specifically includes: radio frame number modulo 20 is equal to 1.
A detection device for detecting a sounding signal, applied to a user terminal, comprises:
the first receiving unit is used for receiving a detection signal DCI sent by a base station through a preset wireless frame of an authorized frequency point, wherein the detection signal DCI comprises frequency band information to be detected and detection signal sending duration information;
a second receiving unit, configured to receive a sounding signal in a corresponding sounding frequency band according to the DCI;
a sending unit, configured to send the quality of the sounding signal to the base station.
Preferably, the preset wireless frame specifically includes: radio frame number modulo 20 is equal to 1.
Compared with the prior art, the technical scheme of the invention has the following advantages:
in the method and the device for detecting the sounding signal provided by the technical scheme, the base station sends the DCI to notify all the UE residing at the authorized frequency point and in the DRX state through one wireless frame of the authorized frequency point, so that the UE can detect the quality of the sounding signal. All the UEs are informed of detecting signal quality detection through a wireless frame, so that authorized frequency point resources are saved, and the utilization rate of authorized frequency spectrum resources is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a method for detecting a sounding reference signal applied to a base station according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting a sounding reference signal applied to a ue according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a sounding reference signal detecting apparatus applied to a base station according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a sounding signal detection apparatus applied to a user equipment according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a method for detecting a sounding signal applied to a base station, and referring to fig. 1, the method includes:
step S11: sending a detection signal DCI to a user terminal residing in an authorized frequency point and in a DRX state through a preset wireless frame of the authorized frequency point;
the DRX cycle of the UE is 0.5ms, the radio frame length is 25ms, the radio frame with modulo 20 is the paging reception time of the non-service UE, and the preset radio frame may be a radio frame after the radio frame with modulo 20 is 0, so as to notify the non-service UE to start signal detection. Specifically, the preset radio frame may be a radio frame with a radio frame number mod 20 equal to 1, a Control Format Indicator (CFI) is sent on a Physical Control Format Indicator (PCFICH) Channel by using a position with the radio frame number mod 20 equal to 1, where the CFI is 3, and a corresponding Physical Downlink Control Channel (PDCCH) Channel sends the probe signal DCI. CFI 3 indicates that the UE sends the sounding signal in N radio frames after receiving the radio frame modulo 20 and equals 1, and the UE receives the sounding signal in the corresponding frequency band according to a certain rule.
The sounding signal DCI includes information of a frequency band to be sounded and information of a sounding signal transmission duration. The frequency band information to be detected comprises start _ pos, assign _ mode and detect _ pos.
Specifically, the start _ pos is 0 to represent the 1 st megabit in the 12MHz bandwidth, 1 to represent the 2 nd megabit in the 12MHz bandwidth, … …, and 11 to represent the 12 th megabit in the 12MHz bandwidth.
The assign _ mode is 2bits and indicates a 1MHz bandwidth allocation manner, specifically, assign _ mode ═ 0 indicates 1MHz full bandwidth detection, assign _ mode ═ 1 indicates 500kHz bandwidth detection, assign _ mode ═ 2 indicates 250kHz bandwidth detection, and assign _ mode ═ 3 indicates 125kHz bandwidth detection.
The detect _ pos is 3bits, which indicates which frequency band the UE performs detection in a corresponding allocation manner under a 1MHz bandwidth, and specifically, when assign _ mode is 0, the detect _ pos can only take 0, which indicates that the entire 1MHz bandwidth is detected; when the assign _ mode is 1, a detect _ pos value of 0 indicates that the previous 500KHz bandwidth detection is carried out, and a detect _ pos value of 1 indicates that the subsequent 500KHz bandwidth detection is carried out; when the assign _ mode is 2, a detect _ pos value of 0 indicates that the 1 st 250KHz bandwidth detection is performed, a detect _ pos value of 1 indicates that the 2 nd 250KHz bandwidth detection is performed, a detect _ pos value of 2 indicates that the 3 rd 250KHz bandwidth detection is performed, and a detect _ pos value of 3 indicates that the 4 th 250KHz bandwidth detection is performed; when the assign _ mode is 3, a detect _ pos value of 0 indicates that the 1 st 125KHz bandwidth detection is performed, a detect _ pos value of 1 indicates that the 2 nd 125KHz bandwidth detection is performed, a detect _ pos value of 2 indicates that the 3 rd 125KHz bandwidth detection is performed, a detect _ pos value of 3 indicates that the 4 th 125KHz bandwidth detection is performed, an etect _ pos value of 4 indicates that the 5 th 125KHz bandwidth detection is performed, a detect _ pos value of 5 indicates that the 6 th 125KHz bandwidth detection is performed, a detect _ pos value of 6 indicates that the 7 th 125 bandwidth detection is performed, and a detect _ pos value of 7 indicates that the 8 th 125KHz bandwidth detection is performed.
The frequency band Information to be detected is 9bits in total, and is scrambled by using SI-RNTI (System Information Radio Network temporary Identity).
Step S12: and receiving the quality of the detection signal fed back by the user terminal.
All the UEs are informed of detecting signal quality detection through a wireless frame, so that authorized frequency point resources are saved, and the utilization rate of authorized frequency spectrum resources is improved.
The embodiment provides a detection signal detection method applied to a user terminal, and referring to fig. 2, the method includes:
step S21: receiving a detection signal DCI sent by a base station through a preset wireless frame of an authorized frequency point;
the radio frame modulo 20 is 0 is the time when the non-service UE receives the paging, and if the UE does not receive the paging in the radio frame modulo 20 is 0, the UE receives the DCI signal in the radio frame modulo 20 is 1. The sounding signal DCI includes information of a frequency band to be sounded and information of a sounding signal transmission duration.
Step S22: receiving the detection signal in the corresponding detection frequency band according to the detection signal DCI;
and the UE calculates the position of the frequency band to be detected according to the content of the DCI, and the number of sensing frequency points contained in the frequency band to be detected. The absolute frequency point index number calculation formula of the sensing frequency point is as follows:
for example, when start _ pos is 0, assign _ mode is 1, and detect _ pos is 1, the absolute bin index of the perceptual bin is 20:39, representing 500KHz at intervals of 25 KHz: all the sensing frequency points of 975KHz, namely 500KHz, 525KHz, 550KHz, … …, 950KHz and 975 KHz. And the absolute frequency point index number is used for the UE to adjust the detection frequency point.
After receiving the probing signal DCI, each UE starts to perform probing radio frame number counting, which corresponds to DETECT _ COUNT. Note that the counting is not performed at the position where the probe sfn modulo 20 is equal to 1 and the position where the probe sfn modulo 40 is equal to 0. And each user receives the detection signals of the corresponding sensing frequency points on the detection wireless frames with the detection _ COUNT number, and the absolute frequency point index numbers of the corresponding sensing frequency points are calculated as follows:
the MAX _ USER _ NUM represents the maximum number of the UE which can be contained in one resident subband, and is a preset value according to the system capacity; NUM _ DETECT represents the number of wireless frames corresponding to the detection signals received by each UE, is a preset value and is obtained through simulation according to the quality requirements of the detection signals; each UE has a unique C _ RNTI Cell Radio Network Temporary Identifier, Cell Radio Network Temporary Identifier).
Step S23: transmitting the quality of the sounding signal to the base station.
All the UEs are informed of detecting signal quality detection through a wireless frame, so that authorized frequency point resources are saved, and the utilization rate of authorized frequency spectrum resources is improved.
For simplicity of explanation, the foregoing method embodiments are described as a series of acts or combinations, but it should be understood by those skilled in the art that the present invention is not limited by the order of acts or acts described, as some steps may occur in other orders or concurrently with other steps in accordance with the invention.
The following are embodiments of the apparatus of the present invention that may be used to perform embodiments of the method of the present invention. For details which are not disclosed in the embodiments of the apparatus of the present invention, reference is made to the embodiments of the method of the present invention.
The present embodiment provides a sounding signal detection apparatus applied to a base station, and referring to fig. 3, the apparatus includes:
a sending unit 11, configured to send a DCI (detection signal DCI) to a user terminal residing at an authorized frequency point and in a DRX state through a preset radio frame of the authorized frequency point, where the DCI includes information of a frequency band to be detected and information of a sending duration of the DCI;
a receiving unit 12, configured to receive the quality of the sounding signal fed back by the user terminal.
All the UEs are informed of detecting signal quality detection through a wireless frame, so that authorized frequency point resources are saved, and the utilization rate of authorized frequency spectrum resources is improved.
The present embodiment provides a probing signal detecting apparatus applied to a user equipment, and referring to fig. 4, the apparatus includes:
a first receiving unit 21, configured to receive a sounding signal DCI sent by a base station through a preset radio frame of an authorized frequency point, where the sounding signal DCI includes information of a frequency band to be sounded and information of sounding signal sending duration;
a second receiving unit 22, configured to receive a sounding signal in a corresponding sounding frequency band according to the sounding signal DCI;
a sending unit 23, configured to send the quality of the sounding signal to the base station.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A method for detecting a sounding signal, applied to a base station, is characterized in that the method comprises:
sending a detection signal DCI to a user terminal residing in an authorized frequency point and in a DRX state through a preset wireless frame of the authorized frequency point, wherein the detection signal DCI comprises information of a frequency band to be detected and information of detection signal sending duration;
receiving the quality of the detection signal fed back by the user terminal;
the frequency band information to be detected comprises start _ pos, assign _ mode and detect _ pos;
the start _ pos is 4bits, the value of the start _ pos is 0 to represent the 1 st million in the 12MHz bandwidth, the value of the start _ pos is 1 to represent the 2 nd million in the 12MHz bandwidth, … …, and the value of the start _ pos is 11 to represent the 12 th million in the 12MHz bandwidth;
the assign _ mode is 2bits, the value of assign _ mode is 0 to represent 1MHz full bandwidth detection, the value of assign _ mode is 1 to represent 500kHz bandwidth detection, the value of assign _ mode is 2 to represent 250kHz bandwidth detection and the value of assign _ mode is 3 to represent 125kHz bandwidth detection;
the detect _ pos is 3bits, when the assign _ mode takes a value of 0, the detect _ pos can only take 0, which indicates that the whole 1MHz bandwidth detection is carried out; when the assign _ mode takes a value of 1, a detect _ pos takes a value of 0 to indicate that the previous 500KHz bandwidth detection is carried out, and a detect _ pos takes a value of 1 to indicate that the subsequent 500KHz bandwidth detection is carried out; when the assign _ mode takes a value of 2, a detect _ pos value of 0 indicates that the 1 st 250KHz bandwidth detection is carried out, a detect _ pos value of 1 indicates that the 2 nd 250KHz bandwidth detection is carried out, a detect _ pos value of 2 indicates that the 3 rd 250KHz bandwidth detection is carried out, and a detect _ pos value of 3 indicates that the 4 th 250KHz bandwidth detection is carried out; when the assign _ mode takes a value of 3, a detect _ pos value of 0 indicates that the 1 st 125KHz bandwidth detection is performed, a detect _ pos value of 1 indicates that the 2 nd 125KHz bandwidth detection is performed, a detect _ pos value of 2 indicates that the 3 rd 125KHz bandwidth detection is performed, a detect _ pos value of 3 indicates that the 4 th 125KHz bandwidth detection is performed, an etect _ pos value of 4 indicates that the 5 th 125KHz bandwidth detection is performed, a detect _ pos value of 5 indicates that the 6 th 125KHz bandwidth detection is performed, a detect _ pos value of 6 indicates that the 7 th 125KHz bandwidth detection is performed, and a detect _ pos value of 7 indicates that the 8 th 125KHz bandwidth detection is performed;
after receiving the DCI, the UE performs detection radio frame number counting, wherein the counting result is DETECT _ COUNT, and the counting result is not counted at a position where a detection radio frame number modulo 20 is equal to 1 and a position where a detection radio frame number modulo 40 is equal to 0;
the user terminal receives the detection signals of the corresponding sensing frequency points on the detection wireless frames with the DETECT _ COUNT, and the absolute frequency point index numbers of the corresponding sensing frequency points are calculated as follows:
the method comprises the steps that MAX _ USER _ NUM represents the maximum number of USER terminals which can be accommodated on a resident subband, MAX _ USER _ NUM is a preset value according to system capacity, NUM _ DETECT represents the number of wireless frames corresponding to probe signals received by the USER terminals, NUM _ DETECT is a preset value and is obtained through simulation according to probe signal quality requirements, and C _ RNTI represents a cell wireless network temporary identifier.
2. The method of claim 1, wherein the predetermined radio frame is specifically: radio frame number modulo 20 is equal to 1.
3. A detection method of a probe signal is applied to a user terminal, and is characterized in that the method comprises the following steps:
receiving a detection signal DCI sent by a base station through a preset wireless frame of an authorized frequency point, wherein the detection signal DCI comprises information of a frequency band to be detected and information of detection signal sending duration;
receiving the detection signal in the corresponding detection frequency band according to the detection signal DCI;
transmitting the quality of the sounding signal to the base station;
the frequency band information to be detected comprises start _ pos, assign _ mode and detect _ pos;
the start _ pos is 4bits, the value of the start _ pos is 0 to represent the 1 st million in the 12MHz bandwidth, the value of the start _ pos is 1 to represent the 2 nd million in the 12MHz bandwidth, … …, and the value of the start _ pos is 11 to represent the 12 th million in the 12MHz bandwidth;
the assign _ mode is 2bits, the value of assign _ mode is 0 to represent 1MHz full bandwidth detection, the value of assign _ mode is 1 to represent 500kHz bandwidth detection, the value of assign _ mode is 2 to represent 250kHz bandwidth detection and the value of assign _ mode is 3 to represent 125kHz bandwidth detection;
the detect _ pos is 3bits, when the assign _ mode takes a value of 0, the detect _ pos can only take 0, which indicates that the whole 1MHz bandwidth detection is carried out; when the assign _ mode takes a value of 1, a detect _ pos takes a value of 0 to indicate that the previous 500KHz bandwidth detection is carried out, and a detect _ pos takes a value of 1 to indicate that the subsequent 500KHz bandwidth detection is carried out; when the assign _ mode takes a value of 2, a detect _ pos value of 0 indicates that the 1 st 250KHz bandwidth detection is carried out, a detect _ pos value of 1 indicates that the 2 nd 250KHz bandwidth detection is carried out, a detect _ pos value of 2 indicates that the 3 rd 250KHz bandwidth detection is carried out, and a detect _ pos value of 3 indicates that the 4 th 250KHz bandwidth detection is carried out; when the assign _ mode takes a value of 3, a detect _ pos value of 0 indicates that the 1 st 125KHz bandwidth detection is performed, a detect _ pos value of 1 indicates that the 2 nd 125KHz bandwidth detection is performed, a detect _ pos value of 2 indicates that the 3 rd 125KHz bandwidth detection is performed, a detect _ pos value of 3 indicates that the 4 th 125KHz bandwidth detection is performed, an etect _ pos value of 4 indicates that the 5 th 125KHz bandwidth detection is performed, a detect _ pos value of 5 indicates that the 6 th 125KHz bandwidth detection is performed, a detect _ pos value of 6 indicates that the 7 th 125KHz bandwidth detection is performed, and a detect _ pos value of 7 indicates that the 8 th 125KHz bandwidth detection is performed;
receiving the sounding signal in the corresponding sounding frequency band according to the sounding signal DCI includes:
after receiving the DCI, the UE performs detection radio frame number counting, wherein the counting result is DETECT _ COUNT, and the counting result is not counted at a position where a detection radio frame number modulo 20 is equal to 1 and a position where a detection radio frame number modulo 40 is equal to 0;
the user terminal receives the detection signals of the corresponding sensing frequency points on the detection wireless frames with the DETECT _ COUNT, and the absolute frequency point index numbers of the corresponding sensing frequency points are calculated as follows:
the method comprises the steps that MAX _ USER _ NUM represents the maximum number of USER terminals which can be accommodated on a resident subband, MAX _ USER _ NUM is a preset value according to system capacity, NUM _ DETECT represents the number of wireless frames corresponding to probe signals received by the USER terminals, NUM _ DETECT is a preset value and is obtained through simulation according to probe signal quality requirements, and C _ RNTI represents a cell wireless network temporary identifier.
4. The method of claim 3, wherein the predetermined radio frame is specifically: radio frame number modulo 20 is equal to 1.
5. A sounding signal detection apparatus applied to a base station, the apparatus comprising:
a sending unit, configured to send a DCI (detection signal DCI) to a user terminal residing at an authorized frequency point and being in a DRX state through a preset radio frame of the authorized frequency point, where the DCI includes information of a frequency band to be detected and information of a sending duration of the DCI;
a receiving unit, configured to receive the quality of the sounding signal fed back by the user equipment;
the frequency band information to be detected comprises start _ pos, assign _ mode and detect _ pos;
the start _ pos is 4bits, the value of the start _ pos is 0 to represent the 1 st million in the 12MHz bandwidth, the value of the start _ pos is 1 to represent the 2 nd million in the 12MHz bandwidth, … …, and the value of the start _ pos is 11 to represent the 12 th million in the 12MHz bandwidth;
the assign _ mode is 2bits, the value of assign _ mode is 0 to represent 1MHz full bandwidth detection, the value of assign _ mode is 1 to represent 500kHz bandwidth detection, the value of assign _ mode is 2 to represent 250kHz bandwidth detection and the value of assign _ mode is 3 to represent 125kHz bandwidth detection;
the detect _ pos is 3bits, when the assign _ mode takes a value of 0, the detect _ pos can only take 0, which indicates that the whole 1MHz bandwidth detection is carried out; when the assign _ mode takes a value of 1, a detect _ pos takes a value of 0 to indicate that the previous 500KHz bandwidth detection is carried out, and a detect _ pos takes a value of 1 to indicate that the subsequent 500KHz bandwidth detection is carried out; when the assign _ mode takes a value of 2, a detect _ pos value of 0 indicates that the 1 st 250KHz bandwidth detection is carried out, a detect _ pos value of 1 indicates that the 2 nd 250KHz bandwidth detection is carried out, a detect _ pos value of 2 indicates that the 3 rd 250KHz bandwidth detection is carried out, and a detect _ pos value of 3 indicates that the 4 th 250KHz bandwidth detection is carried out; when the assign _ mode takes a value of 3, a detect _ pos value of 0 indicates that the 1 st 125KHz bandwidth detection is performed, a detect _ pos value of 1 indicates that the 2 nd 125KHz bandwidth detection is performed, a detect _ pos value of 2 indicates that the 3 rd 125KHz bandwidth detection is performed, a detect _ pos value of 3 indicates that the 4 th 125KHz bandwidth detection is performed, an etect _ pos value of 4 indicates that the 5 th 125KHz bandwidth detection is performed, a detect _ pos value of 5 indicates that the 6 th 125KHz bandwidth detection is performed, a detect _ pos value of 6 indicates that the 7 th 125KHz bandwidth detection is performed, and a detect _ pos value of 7 indicates that the 8 th 125KHz bandwidth detection is performed;
after receiving the DCI, the UE performs detection radio frame number counting, wherein the counting result is DETECT _ COUNT, and the counting result is not counted at a position where a detection radio frame number modulo 20 is equal to 1 and a position where a detection radio frame number modulo 40 is equal to 0;
the user terminal receives the detection signals of the corresponding sensing frequency points on the detection wireless frames with the DETECT _ COUNT, and the absolute frequency point index numbers of the corresponding sensing frequency points are calculated as follows:
the method comprises the steps that MAX _ USER _ NUM represents the maximum number of USER terminals which can be accommodated on a resident subband, MAX _ USER _ NUM is a preset value according to system capacity, NUM _ DETECT represents the number of wireless frames corresponding to probe signals received by the USER terminals, NUM _ DETECT is a preset value and is obtained through simulation according to probe signal quality requirements, and C _ RNTI represents a cell wireless network temporary identifier.
6. The apparatus of claim 5, wherein the predetermined radio frame is specifically: radio frame number modulo 20 is equal to 1.
7. A detection signal detection device applied to a user terminal, the device comprising:
the first receiving unit is used for receiving a detection signal DCI sent by a base station through a preset wireless frame of an authorized frequency point, wherein the detection signal DCI comprises frequency band information to be detected and detection signal sending duration information;
a second receiving unit, configured to receive a sounding signal in a corresponding sounding frequency band according to the DCI;
a sending unit, configured to send the quality of the sounding signal to the base station;
the frequency band information to be detected comprises start _ pos, assign _ mode and detect _ pos;
the start _ pos is 4bits, the value of the start _ pos is 0 to represent the 1 st million in the 12MHz bandwidth, the value of the start _ pos is 1 to represent the 2 nd million in the 12MHz bandwidth, … …, and the value of the start _ pos is 11 to represent the 12 th million in the 12MHz bandwidth;
the assign _ mode is 2bits, the value of assign _ mode is 0 to represent 1MHz full bandwidth detection, the value of assign _ mode is 1 to represent 500kHz bandwidth detection, the value of assign _ mode is 2 to represent 250kHz bandwidth detection and the value of assign _ mode is 3 to represent 125kHz bandwidth detection;
the detect _ pos is 3bits, when the assign _ mode takes a value of 0, the detect _ pos can only take 0, which indicates that the whole 1MHz bandwidth detection is carried out; when the assign _ mode takes a value of 1, a detect _ pos takes a value of 0 to indicate that the previous 500KHz bandwidth detection is carried out, and a detect _ pos takes a value of 1 to indicate that the subsequent 500KHz bandwidth detection is carried out; when the assign _ mode takes a value of 2, a detect _ pos value of 0 indicates that the 1 st 250KHz bandwidth detection is carried out, a detect _ pos value of 1 indicates that the 2 nd 250KHz bandwidth detection is carried out, a detect _ pos value of 2 indicates that the 3 rd 250KHz bandwidth detection is carried out, and a detect _ pos value of 3 indicates that the 4 th 250KHz bandwidth detection is carried out; when the assign _ mode takes a value of 3, a detect _ pos value of 0 indicates that the 1 st 125KHz bandwidth detection is performed, a detect _ pos value of 1 indicates that the 2 nd 125KHz bandwidth detection is performed, a detect _ pos value of 2 indicates that the 3 rd 125KHz bandwidth detection is performed, a detect _ pos value of 3 indicates that the 4 th 125KHz bandwidth detection is performed, an etect _ pos value of 4 indicates that the 5 th 125KHz bandwidth detection is performed, a detect _ pos value of 5 indicates that the 6 th 125KHz bandwidth detection is performed, a detect _ pos value of 6 indicates that the 7 th 125KHz bandwidth detection is performed, and a detect _ pos value of 7 indicates that the 8 th 125KHz bandwidth detection is performed;
receiving the sounding signal in the corresponding sounding frequency band according to the sounding signal DCI includes:
after receiving the DCI, the UE performs detection radio frame number counting, wherein the counting result is DETECT _ COUNT, and the counting result is not counted at a position where a detection radio frame number modulo 20 is equal to 1 and a position where a detection radio frame number modulo 40 is equal to 0;
the user terminal receives the detection signals of the corresponding sensing frequency points on the detection wireless frames with the DETECT _ COUNT, and the absolute frequency point index numbers of the corresponding sensing frequency points are calculated as follows:
the method comprises the steps that MAX _ USER _ NUM represents the maximum number of USER terminals which can be accommodated on a resident subband, MAX _ USER _ NUM is a preset value according to system capacity, NUM _ DETECT represents the number of wireless frames corresponding to probe signals received by the USER terminals, NUM _ DETECT is a preset value and is obtained through simulation according to probe signal quality requirements, and C _ RNTI represents a cell wireless network temporary identifier.
8. The apparatus of claim 7, wherein the predetermined radio frame is specifically: radio frame number modulo 20 is equal to 1.
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