CN112584501B - Unidirectional frequency band pairing processing method and device, base station equipment and readable storage medium - Google Patents
Unidirectional frequency band pairing processing method and device, base station equipment and readable storage medium Download PDFInfo
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Abstract
The application provides a unidirectional frequency band pairing processing method, a device, base station equipment and a readable storage medium, wherein a measurement result of a unidirectional sub-band is obtained in a measurement period before a data transmission period, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band; according to the measurement result, obtaining idle time-frequency resources in the unidirectional sub-band, and using the idle time-frequency resources as a dynamic expansion sub-band of a special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band for presetting unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band for presetting unidirectional downlink; and during data transmission, scheduling the dynamic extended sub-band to transmit the special data so as to dynamically schedule the unidirectional sub-band, thereby realizing dynamic time-frequency sharing of the unidirectional sub-band and effectively improving the frequency use efficiency of the unidirectional sub-band frequency band.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a unidirectional frequency band pairing processing method and apparatus, a base station device, and a readable storage medium.
Background
With the continuous development of wireless communication technology, wireless technology has evolved from 2G to 4G, and gradually evolved to 4.5G and 5G technologies. Trunking communication technology has evolved from analog trunking systems to narrow-band digital trunking systems. The main scenes of the 5G comprise mobile broadband enhancement, large-scale Internet of things and ultrahigh-reliability ultralow-delay communication, and the scenes have the requirements on high reliability, low delay, large bandwidth, wide coverage and the like on a 5G communication system. For example, in the field of 5G emergency communication, on the basis of voice trunking communication and security mechanisms, the broadband private network requirements for supporting multimedia fusion services such as pictures, videos, real-time positioning and the like and command scheduling are more and more urgent, a narrow-band communication system cannot meet the existing service requirements, and the existing PDT/TETRA is analyzing and introducing a broadband evolution scheme. A problem with broadband evolution is that there is currently no spectrum that can be used exclusively.
In the existing 5G emergency communication system, the 336-plus 344MHz frequency band is divided into the use frequency of the dedicated mobile wireless video transmission system, and is applied to emergency command, such as image acquisition in emergency situations like public safety, emergency rescue and disaster relief, wherein 336-plus 340 is preferentially used by public security, and the frequency band is mainly used for acquisition and uploading of uplink unidirectional video images. In order to meet the requirements of emergency disaster relief, forest fire prevention, environmental monitoring, scientific research tests and the like on the unmanned aircraft system, the existing emergency communication system also plans the frequency of the unmanned aircraft system: 840.5-845MHz, 1430-1444MHz and 2408-2440 MHz. Wherein 840.5-845MHz can be used for the uplink remote control link of the unmanned aircraft system, and 841-845MHz can also be used for the uplink remote control and downlink telemetry link of the unmanned aircraft system in a time division mode. The 1430-1444MHz frequency band can be used for downlink telemetry and information transmission links of the unmanned aircraft system, wherein the 1430-1438MHz frequency band is used for video transmission of the police unmanned aircraft and the helicopter, and other unmanned aircraft use the 1438-1444MHz frequency band. In addition, 2408 and 2440MHz frequency bands can be used as backup frequency bands of uplink remote control, downlink remote measurement and information transmission links of the unmanned aircraft system.
However, 336-1444 MHz frequency can only upload images in one direction and support only one-way video upload, 1430-1444MHz frequency is mainly used for downlink telemetry and information transmission links, the main data service is downlink video, the two frequency bands are far apart and are asymmetric frequency spectrums with different frequency bandwidths, and both cannot independently support two-way video transmission and networking at the same time. In the existing 5G communication system, under the condition that a newly allocated special emergency broadband special network frequency spectrum is not available, the new independently allocated special network frequency spectrum cannot be used for building the emergency broadband special network, and the frequency spectrum below 3GHz is not used for the emergency broadband special network.
Disclosure of Invention
The embodiment of the application provides a unidirectional frequency band pairing processing method and device, base station equipment and a readable storage medium, dynamic scheduling of unidirectional sub-bands is achieved, dynamic time-frequency sharing of the unidirectional sub-bands is achieved, and frequency use efficiency of the unidirectional sub-band frequency bands is effectively improved.
In a first aspect of the embodiments of the present application, a method for processing unidirectional frequency band pairing is provided, including:
in a measurement period before a data transmission period, obtaining a measurement result of a unidirectional sub-band, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band;
according to the measurement result, obtaining idle time-frequency resources in the unidirectional sub-band, and taking the idle time-frequency resources as a dynamic expansion sub-band of a special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band of a preset unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band of a preset unidirectional downlink;
scheduling the dynamically expanded sub-band to transmit dedicated data during the data transmission.
In some embodiments, the obtaining the measurement result of the unidirectional sub-band in the measurement period before the data transmission period includes:
measuring an uplink measurement subframe sent by a unidirectional uplink subband in a first uplink measurement period to obtain a first measurement result of the uplink measurement subframe, wherein the first measurement result indicates an idle uplink subframe of the unidirectional uplink subband in a first uplink data transmission period after the first uplink measurement period;
a scheduling terminal measures a downlink measurement subframe sent by a unidirectional downlink subband in a first downlink measurement period to obtain a first downlink measurement result of the downlink measurement subframe, wherein the first downlink measurement result indicates an idle downlink subframe of the unidirectional uplink subband in a first downlink transmission period after the first downlink measurement period;
the obtaining idle time-frequency resources in the unidirectional sub-band according to the measurement result includes:
taking the idle uplink sub-frame in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band;
and taking the idle downlink sub-frame in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
In some embodiments, the obtaining the measurement result of the unidirectional sub-band in the measurement period before the data transmission period includes:
measuring an upper measurement time slot sent by a unidirectional uplink sub-band in a second uplink measurement period to obtain a second measurement result of the upper measurement time slot, wherein the second measurement result indicates an idle uplink time slot of the unidirectional uplink sub-band in a second uplink data transmission period after the second uplink measurement period;
a scheduling terminal measures a lower measurement time slot sent by a unidirectional downlink sub-band in a second downlink measurement period to obtain a second lower measurement result of the lower measurement time slot, wherein the second lower measurement result indicates an idle downlink time slot of the unidirectional downlink sub-band in a second downlink data transmission period after the second downlink measurement period;
the obtaining idle time-frequency resources in the unidirectional sub-band according to the measurement result includes:
taking the idle uplink time slot in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band;
and taking the idle downlink time slot in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
In some embodiments, the obtaining the measurement result of the unidirectional sub-band in the measurement period before the data transmission period further includes:
measuring an upper measurement symbol sent by a unidirectional uplink sub-band in a third uplink measurement period to obtain a third measurement result of the upper measurement symbol, wherein the third measurement result indicates an idle uplink symbol of the unidirectional uplink sub-band in a third uplink data transmission period after the third uplink measurement period;
a scheduling terminal measures a lower measurement symbol sent by a unidirectional downlink sub-band in a third downlink measurement period to obtain a third lower measurement result of the lower measurement symbol, wherein the third lower measurement result indicates an idle downlink symbol of the unidirectional uplink sub-band in a third downlink data transmission period after the third downlink measurement period;
the obtaining idle time-frequency resources in the unidirectional sub-band according to the measurement result includes:
taking the idle uplink symbols in the unidirectional uplink sub-band as idle time-frequency resources of the unidirectional uplink sub-band;
and taking the idle downlink symbol in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
In some embodiments, the measurements comprise energy measurements and/or interference measurements of unidirectional sub-bands.
In some embodiments, the dynamically expanded sub-bands comprise dynamically expanded downlink sub-bands;
the scheduling the dynamic expansion sub-band to transmit the special data comprises the following steps:
and receiving the transmission result of the dynamic expansion downlink sub-band to the special data by the special uplink sub-band.
In some embodiments, said scheduling said dynamic expansion sub-band for transmission of dedicated data further comprises:
and if the transmission of the special data by the dynamic expansion sub-band is determined to fail, scheduling the special sub-band to retransmit the special data with the transmission failure.
In a second aspect of the embodiments of the present application, a processing apparatus for unidirectional frequency band pairing is provided, including:
a measurement result obtaining module, configured to obtain a measurement result of a unidirectional sub-band in a measurement period before a data transmission period, where the unidirectional sub-band includes a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band;
a dynamic expansion module, configured to obtain, according to the measurement result, an idle time-frequency resource in the unidirectional sub-band, and use the idle time-frequency resource as a dynamic expansion sub-band of a dedicated sub-band, where the dedicated sub-band includes a dedicated uplink sub-band provided by a dedicated uplink frequency band for presetting unidirectional uplink and a dedicated downlink sub-band provided by a dedicated downlink frequency band for presetting unidirectional downlink;
and the scheduling module is used for scheduling the dynamic expansion sub-band to transmit the special data during the data transmission period.
In a third aspect of the embodiments of the present application, a base station device is provided, including: the device comprises a memory, a processor and a computer program, wherein the computer program is stored in the memory, and the processor runs the computer program to execute the unidirectional frequency band pairing processing method of the first aspect and various possible designs of the first aspect of the application.
In a fourth aspect of the embodiments of the present application, a readable storage medium is provided, where a computer program is stored in the readable storage medium, and the computer program is used for implementing the unidirectional frequency band pairing processing method according to the first aspect and various possible designs of the first aspect of the present application when executed by a processor.
In the unidirectional frequency band pairing processing method, the unidirectional frequency band pairing processing device, the base station equipment and the readable storage medium, the measurement result of a unidirectional sub-band is obtained in a measurement period before a data transmission period, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band; according to the measurement result, obtaining idle time-frequency resources in the unidirectional sub-band, and taking the idle time-frequency resources as a dynamic expansion sub-band of a special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band of a preset unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band of a preset unidirectional downlink; and scheduling the dynamic extended sub-band to transmit the special data during the data transmission period so as to dynamically schedule the unidirectional sub-band, thereby realizing the dynamic time-frequency sharing of the unidirectional sub-band and effectively improving the frequency use efficiency of the unidirectional sub-band frequency band.
Drawings
Fig. 1 is a schematic view of an application scenario provided in an embodiment of the present application;
fig. 2 is a schematic flow chart of a unidirectional frequency band pairing processing method according to an embodiment of the present application;
fig. 3a is a schematic symbol diagram of a unidirectional downlink subband in a symbol multiplexing embodiment provided in this application;
fig. 3b is a symbol diagram of a unidirectional uplink subband in a symbol multiplexing embodiment provided in this application;
fig. 4 is a schematic time slot diagram in a time slot multiplexing embodiment provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of a unidirectional frequency band pairing processing apparatus according to an embodiment of the present disclosure;
fig. 6 is a schematic hardware structure diagram of a base station device according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.
The terms "first," "second," "third," and the like in the description and claims of this application and in the above-described drawings (if any) are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
It should be understood that, in the various embodiments of the present application, the size of the serial number of each process does not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
It should be understood that, in this application, "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that in this application, "plurality" means two or more. "and/or" is only an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprises A, B and C" and "comprises A, B, C" means that A, B, C all comprise, "comprises A, B or C" means comprise one of A, B, C, "comprises A, B and/or C" means comprise any 1 or any 2 or 3 of A, B, C.
It should be understood that in the present application, "B corresponding to a", "a corresponds to B", or "B corresponds to a" means that B is associated with a, from which B can be determined. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
As used herein, "if" may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context.
The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
In the prior art, the unidirectional uplink band 336 and 344MHz can only upload images in a unidirectional manner and only support unidirectional video upload, the unidirectional downlink band 1430 and 1444MHz are mainly used for downlink telemetry and information transmission links, the main data service is downlink video, the two bands are far apart and are asymmetric frequency spectrums with different frequency bandwidths, and the two bands cannot independently support bidirectional video transmission and networking at the same time. In the existing 5G communication system, under the condition that a newly allocated special emergency broadband special network frequency spectrum is not available, the new independently allocated special network frequency spectrum cannot be used for building the emergency broadband special network, and the frequency spectrum below 3GHz is not used for the emergency broadband special network.
In order to solve the problems in the prior art, the application provides a unidirectional frequency band pairing processing method, dynamic time frequency sharing of unidirectional sub-bands is achieved through dynamic scheduling of the unidirectional sub-bands, and frequency use efficiency of the unidirectional sub-band frequency bands is effectively improved. Fig. 1 is a schematic view of an application scenario provided in the embodiment of the present application. The base station 1 shown in fig. 1 schedules the terminal 2 to measure the unidirectional downlink sub-band (e.g. the sub-band within 1438-1444 MHz), and schedules the unidirectional downlink sub-band according to the reported measurement result. Meanwhile, the base station 1 also measures the unidirectional uplink sub-band (e.g. the sub-band in the frequency band 340-. Thus, the base station 1 transmits dedicated data by dynamically scheduling the unidirectional uplink sub-band and the unidirectional downlink sub-band. The special data is, for example, police emergency data, and the like, and the frequency band extension for transmitting the special data is realized.
Referring to fig. 2, which is a schematic flowchart of a unidirectional frequency band pairing processing method provided in an embodiment of the present application, an execution main body of the method shown in fig. 2 may be a software and/or hardware device, such as the base station shown in fig. 1, or an external device for providing a service to the base station. In the following, a base station is taken as an example. The method of fig. 2 includes steps S101 to S103, which are specifically as follows:
s101, in a measurement period before a data transmission period, obtaining a measurement result of a unidirectional sub-band, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band.
The unidirectional uplink frequency band may be, for example, the unidirectional uplink 340 and 344MHz mapping frequency band, and the unidirectional downlink frequency band may be, for example, the unidirectional downlink 1438 and 1444MHz drone frequency band. Specifically, in some practical use scenarios, 5G carrier pairing may be performed in advance for the graph transmission band 336-:
for the uplink map transmission band 336-. The uplink carrier bandwidth of the 5G system may also be predefined as 10M (10M is compressed to 8M), and the subband attribute of the 336-340M police priority use frequency band may be defined as a dedicated subband BWP. The dedicated sub-band is used for carrying public security services, and is used as an initial sub-band for carrying and transmitting data of common channels such as a Physical Random Access Channel (PRACH) and the like. 340-344MHz is defined as the unidirectional uplink frequency band preset in step S101, and may be defined as 1 or multiple sub-bands according to the sub-band bandwidth. The subbands in 340-344MHz are used for dynamic sharing, time-frequency multiplexing, between the 5G system and other systems.
In the downlink unmanned aircraft frequency band 1430-1444MHz, a total bandwidth of 14M is obtained, wherein the 1430-1438MHz frequency band (dedicated downlink frequency) is used for the police unmanned aircraft frequency band, for example, and the 1438-1444MHz is used for sharing the police unmanned aircraft and other unmanned aircraft, for example. Since the 1430-1444MHz main data service is a downlink video, the sub-band can be defined according to the video bandwidth, for example, the sub-band bandwidth can be defined as 3RB, 6RB, 12RB, and the like. According to the existing spectrum division, different sub-bands BWP are defined, and the bandwidth, the attribute and the use strategy of each sub-band are predefined. For example, the bandwidth of the downlink carrier of the 5G system may be defined as 15M (15M compressed to 14M), the attribute of the sub-band at 1430 and 1438MHz may be defined as a public security dedicated sub-band BWP, the public security dedicated sub-band is used for carrying public security traffic, and is used as an initial sub-band for carrying and transmitting data of the dedicated downlink sub-band. 1438-. The sub-band in 1438-1444MHz is used for dynamic sharing, time-frequency multiplexing, between the 5G system and other systems.
On the basis of the above predefined definition, 336-344MHz in the uplink 336-344MHz is a dedicated uplink frequency band used by public security first, 340-344MHz is a unidirectional uplink frequency band shared by multiple industry users, and the frequency of using the sub-band resource by the graph transmission system is not high, so that the bandwidth is shared by the 4M bandwidth of 340-344MHz in a time-frequency dynamic sharing manner. Similarly, in 1430-1444MHz, 1430-1438 bandwidth is a dedicated downlink frequency band used by the police drone, and 1438-1444MHz 6M bandwidth is a unidirectional downlink frequency band used for sharing, and a time-frequency dynamic sharing mode is adopted to share the bandwidth.
The frequency domain resource sharing adopts a sub-band definition mode, and as the uplink and downlink services are mainly video services, the uplink and downlink sub-bands can be defined aiming at different terminals. For example, the granularity for the unidirectional sub-bands defined for upstream D1 and 720P video backhaul terminals may be 2M, while the granularity for 1080P terminals may be 4M. The downlink sub-band definition is defined according to the bandwidth requirement of a typical service carried by a downlink terminal, for example, the sub-band granularity may be defined as 2M, and the sub-band bandwidth may be defined as 2M, 4M, or 6M.
In some embodiments, the measurements comprise energy measurements and/or interference measurements of the unidirectional sub-bands. For the unidirectional downlink sub-band, the base station may schedule the terminal to measure an energy value and/or an interference signal value of the unidirectional downlink sub-band of several previous downlink symbols (or subframes, or time slots) (the existing 5G terminal is scheduled to use the unidirectional downlink sub-band to perform measurement), the measurement result may be reported through a dedicated sub-band (e.g., the 5G dedicated sub-band), and the base station receives the energy measurement result and/or the interference measurement result of the unidirectional downlink sub-band. As can be seen, for the unidirectional downlink sub-band, the measurement period also includes the reporting time. For the uplink sub-band, the base station may measure the energy value and/or the interference signal value of the unidirectional uplink sub-band without the process of reporting by the terminal.
Taking the service supporting the transmission of the dedicated data by the base station of the 5G system as an example, the time domain of the 5G system performs the frequency domain and time domain scheduling of the spectrum resources according to the frame format and the time slot format of 10ms/5ms/1ms/0.5ms/0.25ms/0.125ms/0.0625ms/0.03125 ms. The 5G system measures the frequency use condition of the shared sub-band, and when other systems do not use the unidirectional sub-band frequency, the 5G base station uses the frequency resource of the unidirectional sub-band to analyze and dynamically schedule according to the use state of the sub-band resource of the unidirectional sub-band, so that the multiplexing of the time frequency resource of the 5G system and other systems is realized, and the frequency utilization rate is improved. The unidirectional sub-band frequency sharing mode of the 5G base station can realize the multiplexing of video resources in the unidirectional sub-band at a symbol level, a time slot level or a subframe level.
In this embodiment, the measurement result may be a measurement result at a symbol level, a slot level, or a subframe level in a subband, so that multiplexing at the symbol level, the slot level, or the subframe level is realized in a next step.
In some embodiments of subframe multiplexing, step S101 may be: the base station measures an uplink measurement subframe sent by a unidirectional uplink subband in a first uplink measurement period to obtain a first measurement result of the uplink measurement subframe, wherein the first measurement result indicates an idle uplink subframe of the unidirectional uplink subband in a first uplink data transmission period after the first uplink measurement period. And the base station scheduling terminal measures a downlink measurement subframe sent by the unidirectional downlink subband in a first downlink measurement period to obtain a first downlink measurement result of the downlink measurement subframe, wherein the first downlink measurement result indicates an idle downlink subframe of the unidirectional uplink subband in a first downlink data transmission period after the first downlink measurement period. The first measurement result may be reported to the base station through a dedicated subband.
In some embodiments of time slot multiplexing, step S101 may be: and the base station measures an upper measurement time slot sent by the unidirectional uplink sub-band in a second uplink measurement period to obtain a second measurement result of the upper measurement time slot, wherein the second measurement result indicates an idle uplink time slot of the unidirectional uplink sub-band in a second uplink data transmission period after the second uplink measurement period. And the base station scheduling terminal measures a lower measurement time slot sent by the unidirectional downlink sub-band in a second downlink measurement period to obtain a second lower measurement result of the lower measurement time slot, wherein the second lower measurement result indicates an idle downlink time slot of the unidirectional downlink sub-band in a second downlink data transmission period after the second downlink measurement period. And reporting the second lower measurement result to the base station through the special sub-band.
In some embodiments of symbol multiplexing, step S101 may be: and the base station measures an upper measurement symbol sent by the unidirectional uplink sub-band in a third uplink measurement period to obtain a third measurement result of the upper measurement symbol, wherein the third measurement result indicates an idle uplink symbol of the unidirectional uplink sub-band in a third uplink data transmission period after the third uplink measurement period. And the base station scheduling terminal measures a lower measurement symbol sent by the unidirectional downlink subband in a third downlink measurement period to obtain a third lower measurement result of the lower measurement symbol, wherein the third lower measurement result indicates an idle downlink symbol of the unidirectional uplink subband in a third downlink data transmission period after the third downlink measurement period. And reporting the third lower measurement result to the base station through the special sub-band.
The embodiments of subframe multiplexing, slot multiplexing and symbol multiplexing may be alternatively preset, or may be combined and supplemented with each other. In some embodiments, which are combined with each other for supplement, it may be determined whether a subframe multiplexing condition is satisfied, for example, for a unidirectional uplink sub-band, it is determined whether a measurement result indicating that an idle uplink subframe exists is obtained, if it is determined that the measurement result indicates that no idle uplink subframe exists, it is determined whether a measurement result indicating that an idle uplink timeslot exists is obtained, and if it is determined that the measurement result indicates that no idle uplink timeslot exists, it is determined whether a measurement result indicating that an idle uplink symbol exists is obtained. Similarly, for the unidirectional downlink sub-band, whether a measurement result indicating the existence of an idle downlink sub-frame is obtained or not is judged, if the measurement result indicates that no idle downlink sub-frame exists, whether a measurement result indicating the existence of an idle downlink time slot is obtained or not is judged, and if the measurement result indicates that no idle downlink time slot exists, whether a measurement result indicating the existence of an idle downlink symbol is obtained or not is judged. Therefore, the idle video resources are searched from large units to small units, and the dynamic idle video resources are searched, so that the dynamic and flexible resource scheduling is performed in the subsequent process.
S102, according to the measuring result, obtaining the idle time-frequency resource in the unidirectional sub-band, and using the idle time-frequency resource as the dynamic expansion sub-band of the special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band of a preset unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band of a preset unidirectional downlink.
The dedicated subband is a subband used for transmitting dedicated data. The specific data is, for example, emergency data, police data, etc. By dynamically configuring the dynamic extension sub-band for the dedicated sub-band, the transmission pressure of the dedicated sub-band can be shared.
In some embodiments of subframe multiplexing, step S102 may include: and the base station takes the idle uplink sub-frame in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band. And the base station takes the idle downlink sub-frame in the unidirectional downlink sub-band as idle time-frequency resources of the unidirectional downlink sub-band.
In some embodiments of time slot multiplexing, step S102 may include: and the base station takes the idle uplink time slot in the unidirectional uplink sub-band as idle time-frequency resources of the unidirectional uplink sub-band. And the base station takes the idle downlink time slot in the unidirectional downlink sub-band as idle time-frequency resources of the unidirectional downlink sub-band.
In some embodiments of symbol multiplexing, step S102 may comprise: and the base station takes the idle uplink symbols in the unidirectional uplink sub-band as idle time-frequency resources of the unidirectional uplink sub-band. And the base station takes the idle downlink symbols in the unidirectional downlink sub-band as idle time-frequency resources of the unidirectional downlink sub-band.
S103, scheduling the dynamic expansion sub-band to transmit the special data during the data transmission period.
For example, the dedicated data may be transmitted using subframes, slots, or symbols in the idle video resources, enabling dynamic extension of the dedicated subbands.
In order to improve the reliability of the dynamic extension subband transmission, especially for the dynamic extension downlink subbands included in the dynamic extension subbands, a feedback mechanism may be introduced. Specifically, during data transmission, the transmission result of the dedicated data by the dynamic extended downlink sub-band may be received by the dedicated uplink sub-band.
In some embodiments, in order to improve the transmission reliability of the dedicated data, a retransmission guarantee mechanism may also be introduced. For example, after the base station schedules the dynamic expansion sub-band to transmit the dedicated data, it also monitors whether the transmission of the dynamic expansion sub-band to the dedicated data is successful, for example, the base station obtains or schedules the terminal to report the result of whether the transmission of the dynamic expansion sub-band to the dedicated data is successful, and if it is determined that the transmission of the dynamic expansion sub-band to the dedicated data is failed, the dedicated sub-band is scheduled to retransmit the dedicated data with the transmission failure. Here, the method for determining the transmission failure may be, for example: if the frequency of the transmission failure of the special data by the dynamic expansion sub-band is determined to be larger than or equal to a preset retransmission threshold, if the failure frequency is smaller than the retransmission threshold, the special data with the transmission failure is retransmitted by the dynamic expansion sub-band again, if the failure frequency is larger than or equal to the retransmission threshold, the transmission failure of the special data by the dynamic expansion sub-band is determined, and the special sub-band is scheduled to retransmit the special data with the transmission failure.
Through the embodiment, under the condition that a newly distributed broadband private network frequency spectrum is not available, the existing asymmetric unidirectional uplink 336-plus 344MHz image transmission frequency band and the unmanned aerial vehicle 1430-plus 1444MHz unidirectional downlink frequency band can be effectively utilized to construct an emergency command broadband cluster private network, so that the emergency communication command broadband private network system integrating multimedia services such as cluster voice, multimedia message, GIS, video, data service, command scheduling and the like is supported.
The method for pairing the unidirectional frequency bands comprises the steps of obtaining a measurement result of a unidirectional sub-band in a measurement period before a data transmission period, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band; according to the measurement result, obtaining idle time-frequency resources in the unidirectional sub-band, and taking the idle time-frequency resources as a dynamic expansion sub-band of a special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band of a preset unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band of a preset unidirectional downlink; and scheduling the dynamic extended sub-band to transmit the special data during the data transmission period so as to dynamically schedule the unidirectional sub-band, thereby realizing the dynamic time-frequency sharing of the unidirectional sub-band and effectively improving the frequency use efficiency of the unidirectional sub-band frequency band.
The above embodiment will be described below by taking symbol multiplexing as an example. The sharing premise of the unidirectional downlink sub-band and the unidirectional uplink sub-band is that the 5G base station needs to measure and evaluate the frequency use condition of the unidirectional sub-band, and when other systems do not use the frequency of the unidirectional sub-band, the 5G base station carries out analysis and dynamic scheduling according to the use state of the sub-band time-frequency resource of the unidirectional sub-band, so that the multiplexing of the time-frequency resource of the 5G system and other systems is realized, and the frequency utilization rate is improved. Fig. 3a is a schematic diagram of a symbol of a unidirectional downlink subband in a symbol multiplexing embodiment provided in this application. For example, the unidirectional subband frequency sharing scheme of the 5G base station may be defined as follows: in the processing of the unidirectional downlink sub-band, for 14 symbols included in one timeslot shown in fig. 3a, a 5G base station may define the first 4 symbols as an energy/interference measurement and reporting period for measuring wireless energy and interference signals and reporting measurement results, and define the subsequent 10 symbols as a data transmission period. The number of symbols in each period can be adjusted according to the set value, the system scheduling terminal measures the energy value and the interference signal value of the unidirectional downlink sub-band of the first few symbols of the downlink (the 5G terminal is scheduled to use the sub-band), and the measurement result can be reported on the 5G special sub-band. And the terminal reports the measurement result to the base station through a 5G uplink dedicated frequency band (if the sharing scheduling of the unidirectional uplink sub-band is confirmed, the reporting can also be carried out through the sharable unidirectional uplink sub-band) in the third symbol. And the base station receives and processes the measurement result at the fourth symbol and judges the frequency occupation condition of the sub-band in the time slot.
If the energy is less than the set threshold value or the interference is less than the set threshold value, the frequency of the unidirectional downlink sub-band is judged to be idle, the next 10 symbols of the corresponding time slot of the unidirectional downlink sub-band are idle, otherwise, the frequency of the unidirectional downlink sub-band is judged to be occupied, and the next 10 symbols of the corresponding time slot of the sub-band are in an occupied state. If 10 symbols in the subsequent time slot are in an idle state, the 5G base station may schedule the subband frequency resources on the following 10 symbols, and transmit the 5G system downlink data. The data transmission result of the scheduled unidirectional downlink sub-band can be fed back on the control channel of the 5G dedicated sub-band or on the activated sub-band.
Fig. 3b is a schematic diagram of a symbol of a unidirectional uplink subband in a symbol multiplexing embodiment according to the present application. In the case that 1 slot of the unidirectional downlink sub-band shown in fig. 3b includes 14 symbols, the 5G base station may be defined as an energy/interference measurement period and a data transmission period. The number of symbols in each period can be adjusted according to a set value. And the 5G base station measures the energy value and the interference signal value of the unidirectional uplink sub-band in the uplink time slot at the first 2 symbols of the time slot, the base station measures and obtains the energy value and the interference signal value of the uplink, and the 3 rd symbol is the processing time of the base station and judges the frequency occupation condition of the unidirectional uplink sub-band in the time slot. If the energy is less than the set threshold or the interference is less than the set threshold, determining that the one-way uplink sub-band frequency is idle, i.e. 11 symbols behind the slot are idle; otherwise, the unidirectional uplink sub-band frequency is judged to be occupied, namely 11 symbols behind the slot are in an occupied state. And if the subsequent 11 symbols in the time slot are in an idle state, the 5G base station schedules the unidirectional uplink sub-band frequency resource at the following 11 symbol times and transmits the 5G system uplink data.
The slot multiplexing and subframe multiplexing is similar to the symbol multiplexing described above in fig. 3a and 3 b. Fig. 4 is a schematic diagram of a timeslot in a timeslot multiplexing embodiment according to an embodiment of the present application. If fig. 4 is a subframe of the unidirectional downlink sub-band, the measurement and determination of the unidirectional downlink sub-band by the base station are described as follows: one subframe includes 10 time slots, the first 2 time slots shown in fig. 4 are defined as a downlink signal strength measurement and reporting period, and the last 8 time slots are data transmission periods. The base station scheduling terminal measures the energy value and the interference signal value of the unidirectional downlink sub-band, the measurement time length is processed by 2 time slots according to the measurement and reporting time, and the measurement time length is sent to the base station through the 5G special uplink sub-band. And the base station evaluates the occupation condition of the unidirectional downlink sub-band frequency according to the reported measurement result of the terminal. For example, if the energy value in the first 2 time slots is lower than a set threshold or the interference signal value is smaller than a set threshold, the frequency occupation condition of the unidirectional downlink sub-band in the subsequent 8 time slots is considered to be idle; otherwise, judging that the frequency of the unidirectional downlink sub-band is occupied, and continuously measuring the energy value and the interference signal value of the time slot in the next sub-frame. If fig. 4 is a subframe of the unidirectional uplink sub-band, the measurement and determination of the unidirectional uplink sub-band by the base station are described as follows: and the base station measures the energy value and the interference signal value of the sub-band with the time length of the previous 2 time slots and evaluates the frequency occupation condition of the time slot in the unidirectional uplink sub-band. And if the measured value of the energy value is smaller than the set threshold value or the interference signal value is smaller than the set threshold value, judging that the frequency occupation situation in the subsequent 8 time slots of the subframe is idle. If the time slot and the sub-frame of the unidirectional sub-band in the downlink time and the uplink time in the data transmission period are judged to be in idle states, scheduling the time-frequency resource of the unidirectional sub-band aiming at the corresponding sub-frame and time slot, and transmitting 5G service; and if the time slot and the subframe are judged to be in the occupied state, scheduling is not carried out. And the data transmission result of the unidirectional sub-band is fed back on the control channel of the 5G special sub-band or the activated frequency of the sub-band containing the unidirectional sub-band. After the unidirectional sub-band data transmission retransmission fails for N times, the 5G special sub-band can be selectively adopted for scheduling retransmission.
In some embodiments, in the downlink frequency band 1430-. In the uplink band 336-. Considering that the distance between downlink and uplink frequency bands is far, and the asymmetry and dynamic bandwidth property of downlink sub-bands, an uplink and downlink coverage balance and downlink power adjustment mechanism can be introduced: and the coverage difference caused by the frequency band difference is balanced, and the dynamic power of the downlink sub-band is shared.
For the balance of coverage difference caused by frequency band difference, the uplink and downlink frequency bands are 340M and 1.4G difference. According to the urban non-line-of-sight Okumra-Hata empirical formula road LOSs, the suburban and general urban COST 231-WI model line LOSs of sight propagation (LOS), the difference of approximately 12 dB-15.7 dB of coverage difference caused by frequency band difference can be determined. Considering that the difference between the uplink frequency spectrum and the downlink frequency is far, the antenna size has large difference, different receiving and sending antennas and channels can be configured for uplink and downlink, and compensation is carried out through the difference of the gains of the sending channels and the antennas. For example, for the unidirectional uplink band 336-: 2x 20W. For the unidirectional downlink band 1430-1444MHz, the transmitting rf device is modified from the original 2x20W to 8x20W, the power gain is about 7dB, and the downlink transmitting antenna gain supplements 3-5 dB to compensate the uplink and downlink coverage.
For the dynamic power sharing of the downlink sub-band, the bandwidth of the downlink sub-band is 8M-14M, when the base station schedules, the base station dynamically schedules according to the preset occupation condition of the unidirectional downlink sub-band, and the residual transmitting power of the unused sub-band bandwidth is shared to the available frequency resource to obtain the power boost gain, which is about 1.5-3 dB.
By the coverage difference of 11.5-15dB which is approximately supplemented by the downlink transmitting channel increasing, the antenna gain increasing and the power sharing technology, the downlink coverage is optimized, and the uplink and downlink coverage balance is pulled up.
Fig. 5 is a schematic structural diagram of a unidirectional frequency band pairing processing apparatus provided in the embodiment of the present application. The unidirectional frequency band pairing processing apparatus shown in fig. 5 may be the base station shown in fig. 1, or may be software built in the base station. Unidirectional frequency band pairs processing apparatus 50 includes:
a measurement result obtaining module 51, configured to obtain a measurement result of a unidirectional sub-band in a measurement period before a data transmission period, where the unidirectional sub-band includes a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band;
a dynamic extension module 52, configured to obtain, according to the measurement result, an idle time-frequency resource in the unidirectional sub-band, and use the idle time-frequency resource as a dynamic extension sub-band of a dedicated sub-band, where the dedicated sub-band includes a dedicated uplink sub-band provided by a dedicated uplink frequency band for presetting unidirectional uplink and a dedicated downlink sub-band provided by a dedicated downlink frequency band for presetting unidirectional downlink;
a scheduling module 53, configured to schedule the dynamic expansion sub-band for transmitting dedicated data during the data transmission period.
The unidirectional frequency band pairing processing device provided by the application obtains a measurement result of a unidirectional sub-band in a measurement period before a data transmission period, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band; according to the measurement result, obtaining idle time-frequency resources in the unidirectional sub-band, and taking the idle time-frequency resources as a dynamic expansion sub-band of a special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band of a preset unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band of a preset unidirectional downlink; and scheduling the dynamic extended sub-band to transmit the special data during the data transmission period so as to dynamically schedule the unidirectional sub-band, thereby realizing dynamic time-frequency sharing of the unidirectional sub-band and effectively improving the frequency use efficiency of the unidirectional sub-band frequency band.
In some embodiments, the measurement result obtaining module 51 is specifically configured to measure an uplink measurement subframe sent by a unidirectional uplink subband in a first uplink measurement period, to obtain a first measurement result of the uplink measurement subframe, where the first measurement result indicates an idle uplink subframe of the unidirectional uplink subband in a first uplink data transmission period after the first uplink measurement period; the scheduling terminal measures a downlink measurement subframe sent by a unidirectional downlink subband in a first downlink measurement period to obtain a first downlink measurement result of the downlink measurement subframe, wherein the first downlink measurement result indicates an idle downlink subframe of the unidirectional uplink subband in a first downlink data transmission period after the first downlink measurement period.
Correspondingly, the dynamic extension module 52 is specifically configured to use the idle uplink subframe in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band; and taking the idle downlink sub-frame in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
In some embodiments, the measurement result obtaining module 51 is specifically configured to measure an upper measurement timeslot sent by a unidirectional uplink subband in a second uplink measurement period, to obtain a second measurement result of the upper measurement timeslot, where the second measurement result indicates an idle uplink timeslot of the unidirectional uplink subband in a second uplink data transmission period after the second uplink measurement period; and the scheduling terminal measures a lower measurement time slot sent by the unidirectional downlink sub-band in a second downlink measurement period to obtain a second lower measurement result of the lower measurement time slot, wherein the second lower measurement result indicates an idle downlink time slot of the unidirectional downlink sub-band in a second downlink data transmission period after the second downlink measurement period.
Correspondingly, the dynamic extension module 52 is specifically configured to use the idle uplink timeslot in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band; and taking the idle downlink time slot in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
In some embodiments, the measurement result obtaining module 51 is specifically configured to measure an upper measurement symbol sent by a unidirectional uplink subband in a third uplink measurement period, so as to obtain a third measurement result of the upper measurement symbol, where the third measurement result indicates an idle uplink symbol of the unidirectional uplink subband in a third uplink data transmission period after the third uplink measurement period; and the scheduling terminal measures a lower measurement symbol sent by the unidirectional downlink sub-band in a third downlink measurement period to obtain a third lower measurement result of the lower measurement symbol, wherein the third lower measurement result indicates an idle downlink symbol of the unidirectional uplink sub-band in a third downlink data transmission period after the third downlink measurement period.
Correspondingly, the dynamic extension module 52 is specifically configured to use the idle uplink symbol in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band; and taking the idle downlink symbol in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
In some embodiments, the measurements comprise energy measurements and/or interference measurements of unidirectional sub-bands.
In some embodiments, the dynamically expanded sub-band comprises a dynamically expanded downlink sub-band.
And a scheduling module 53, configured to receive, by using the dedicated uplink subband, a transmission result of the dynamic extended downlink subband for the dedicated data.
In some embodiments, the scheduling module 53 is further configured to, after scheduling the dynamic expansion subband to transmit dedicated data, schedule the dedicated subband to retransmit dedicated data with failed transmission if it is determined that the dynamic expansion subband fails to transmit dedicated data.
Referring to fig. 6, which is a schematic diagram of a hardware structure of a base station device provided in an embodiment of the present application, the base station device 60 includes: a processor 61, memory 62 and computer programs; wherein the content of the first and second substances,
a memory 62 for storing the computer program, which may also be a flash memory (flash). The computer program is, for example, an application program, a functional module, or the like that implements the above method.
And a processor 61, configured to execute the computer program stored in the memory, so as to implement the steps executed by the base station in the unidirectional frequency band pairing processing method. Reference may be made in particular to the description relating to the preceding method embodiment.
Alternatively, the memory 62 may be separate or integrated with the processor 61.
When the memory 62 is a device independent of the processor 61, the base station apparatus may further include:
a bus 63 for connecting the memory 62 and the processor 61.
The present application further provides a readable storage medium, in which a computer program is stored, and the computer program is used for implementing the unidirectional frequency band pairing processing method provided by the foregoing various embodiments when executed by a processor.
The readable storage medium may be a computer storage medium or a communication medium. Communication media includes any medium that facilitates transfer of a computer program from one place to another. Computer storage media may be any available media that can be accessed by a general purpose or special purpose computer. For example, a readable storage medium is coupled to the processor such that the processor can read information from, and write information to, the readable storage medium. Of course, the readable storage medium may also be an integral part of the processor. The processor and the readable storage medium may reside in an Application Specific Integrated Circuits (ASIC). Additionally, the ASIC may reside in user equipment. Of course, the processor and the readable storage medium may also reside as discrete components in a communication device. The readable storage medium may be a read-only memory (ROM), a random-access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The present application also provides a program product comprising execution instructions stored in a readable storage medium. The at least one processor of the device may read the executable instruction from the readable storage medium, and the at least one processor executes the executable instruction to enable the device to implement the unidirectional frequency band pairing processing method provided in the foregoing various embodiments.
In the above embodiments of the base station device, it should be understood that the Processor may be a Central Processing Unit (CPU), other general-purpose processors, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of a method disclosed in connection with the present application may be embodied directly in a hardware processor, or in a combination of the hardware and software modules in the processor.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. A unidirectional frequency band pairing processing method is characterized by comprising the following steps:
in a measurement period before a data transmission period, obtaining a measurement result of a unidirectional sub-band, wherein the unidirectional sub-band comprises a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band;
according to the measurement result, obtaining idle time-frequency resources in the unidirectional sub-band, and taking the idle time-frequency resources as a dynamic expansion sub-band of a special sub-band, wherein the special sub-band comprises a special uplink sub-band provided by a special uplink frequency band of a preset unidirectional uplink and a special downlink sub-band provided by a special downlink frequency band of a preset unidirectional downlink;
scheduling the dynamically extended sub-band to transmit dedicated data during the data transmission;
the acquiring the measurement result of the unidirectional sub-band in the measurement period before the data transmission period comprises:
measuring an uplink measurement subframe sent by a unidirectional uplink subband in a first uplink measurement period to obtain a first measurement result of the uplink measurement subframe, wherein the first measurement result indicates an idle uplink subframe of the unidirectional uplink subband in a first uplink data transmission period after the first uplink measurement period;
a scheduling terminal measures a downlink measurement subframe sent by a unidirectional downlink subband in a first downlink measurement period to obtain a first downlink measurement result of the downlink measurement subframe, wherein the first downlink measurement result indicates an idle downlink subframe of the unidirectional uplink subband in a first downlink transmission period after the first downlink measurement period;
the obtaining idle time-frequency resources in the unidirectional sub-band according to the measurement result includes:
taking the idle uplink sub-frame in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band;
and taking the idle downlink sub-frame in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
2. The method of claim 1, wherein obtaining the measurement result of the unidirectional sub-band in the measurement period before the data transmission period comprises:
measuring an upper measurement time slot sent by a unidirectional uplink sub-band in a second uplink measurement period to obtain a second measurement result of the upper measurement time slot, wherein the second measurement result indicates an idle uplink time slot of the unidirectional uplink sub-band in a second uplink data transmission period after the second uplink measurement period;
a scheduling terminal measures a lower measurement time slot sent by a unidirectional downlink sub-band in a second downlink measurement period to obtain a second lower measurement result of the lower measurement time slot, wherein the second lower measurement result indicates an idle downlink time slot of the unidirectional downlink sub-band in a second downlink data transmission period after the second downlink measurement period;
the obtaining idle time-frequency resources in the unidirectional sub-band according to the measurement result includes:
taking the idle uplink time slot in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band;
and taking the idle downlink time slot in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
3. The method of claim 1, wherein obtaining the measurement result of the unidirectional sub-band in a measurement period before the data transmission period further comprises:
measuring an upper measurement symbol sent by a unidirectional uplink sub-band in a third uplink measurement period to obtain a third measurement result of the upper measurement symbol, wherein the third measurement result indicates an idle uplink symbol of the unidirectional uplink sub-band in a third uplink data transmission period after the third uplink measurement period;
a scheduling terminal measures a lower measurement symbol sent by a unidirectional downlink sub-band in a third downlink measurement period to obtain a third lower measurement result of the lower measurement symbol, wherein the third lower measurement result indicates an idle downlink symbol of the unidirectional uplink sub-band in a third downlink data transmission period after the third downlink measurement period;
the obtaining idle time-frequency resources in the unidirectional sub-band according to the measurement result includes:
taking the idle uplink symbols in the unidirectional uplink sub-band as idle time-frequency resources of the unidirectional uplink sub-band;
and taking the idle downlink symbol in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
4. The method according to claim 1, characterized in that the measurement results comprise energy measurement results and/or interference measurement results of unidirectional sub-bands.
5. The method of claim 1, wherein the dynamically expanded sub-band comprises a dynamically expanded downlink sub-band;
the scheduling the dynamic expansion sub-band to transmit the special data comprises the following steps:
and receiving the transmission result of the dynamic expansion downlink sub-band to the special data by the special uplink sub-band.
6. The method of claim 1 or 5, wherein after scheduling the dynamic expansion sub-band for dedicated data transmission, further comprising:
and if the transmission of the special data by the dynamic expansion sub-band is determined to fail, scheduling the special sub-band to retransmit the special data with the transmission failure.
7. A unidirectional frequency band pairing processing device is characterized by comprising:
a measurement result obtaining module, configured to obtain a measurement result of a unidirectional sub-band in a measurement period before a data transmission period, where the unidirectional sub-band includes a unidirectional uplink sub-band corresponding to a preset unidirectional uplink frequency band and a unidirectional downlink sub-band corresponding to a preset unidirectional downlink frequency band;
a dynamic expansion module, configured to obtain, according to the measurement result, an idle time-frequency resource in the unidirectional sub-band, and use the idle time-frequency resource as a dynamic expansion sub-band of a dedicated sub-band, where the dedicated sub-band includes a dedicated uplink sub-band provided by a dedicated uplink frequency band for presetting unidirectional uplink and a dedicated downlink sub-band provided by a dedicated downlink frequency band for presetting unidirectional downlink;
a scheduling module, configured to schedule the dynamic extended sub-band to transmit dedicated data during the data transmission period;
the measurement result obtaining module is specifically configured to measure an uplink measurement subframe sent by a unidirectional uplink subband in a first uplink measurement period, to obtain a first measurement result of the uplink measurement subframe, where the first measurement result indicates an idle uplink subframe of the unidirectional uplink subband in a first uplink data transmission period after the first uplink measurement period; a scheduling terminal measures a downlink measurement subframe sent by a unidirectional downlink subband in a first downlink measurement period to obtain a first downlink measurement result of the downlink measurement subframe, wherein the first downlink measurement result indicates an idle downlink subframe of the unidirectional uplink subband in a first downlink transmission period after the first downlink measurement period;
the dynamic extension module is specifically configured to use the idle uplink subframe in the unidirectional uplink sub-band as an idle time-frequency resource of the unidirectional uplink sub-band; and taking the idle downlink sub-frame in the unidirectional downlink sub-band as an idle time-frequency resource of the unidirectional downlink sub-band.
8. A base station apparatus, comprising: a memory, a processor and a computer program, the computer program being stored in the memory, the processor running the computer program to perform the unidirectional frequency band pairing processing method of any one of claims 1 to 6.
9. A readable storage medium, wherein a computer program is stored in the readable storage medium, and when executed by a processor, the computer program is configured to implement the unidirectional frequency band pairing processing method according to any one of claims 1 to 6.
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