CN102450067B - Method and equipment for accomplishing wireless transmission scheduling - Google Patents

Abstract

The present invention relates to a method and device for realizing wireless transmission scheduling, which is used to execute transmission scheduling for other mobile stations in a wireless communication system at the scheduling switching interval of uplink transmission and downlink transmission of the mobile station. The embodiment of the present invention separates the uplink and downlink scheduling of the current mobile station through the transmission scheduling of different mobile stations, thereby effectively utilizing the interval time between the uplink and downlink scheduling of the mobile station, thereby achieving full use of wireless resources. The purpose is to reduce the waste of wireless resources.

Description

Method and device for realizing wireless transmission scheduling

technical field

The invention relates to the field of communication technology, in particular to a technology for realizing wireless transmission scheduling.

Background technique

At present, there are mainly two multiplexing modes in the communication system: Frequency Division Duplexing (FDD, Frequency Division Duplexing) and Time Division Duplexing (TDD, Time Division Duplexing). Among them, FDD is continuous in time, and the uplink and downlink transmissions are separated in different frequency bands; while the uplink and downlink transmissions of TDD are sent in turn on the same frequency band to achieve the effect of multiplexing. A corresponding FDD mobile station can also work in a Half-Frequency Division Duplex (H-FDD, Half-Frequency Division Duplex) mode. And H-FDD not only has the characteristic of FDD separated in the frequency band, but also has the characteristic of TDD sending in turn in time.

Specifically, the frame structure in the IEEE802.16e protocol uses a frame divided into two half-frames to support H-FDD mobile stations, as shown in Figure 1, the corresponding H-FDD mobile stations are divided into two groups, the first The H-FDD mobile stations in one group perform downlink transmission in the first half frame and uplink transmission in the second half frame, while the H-FDD mobile stations in the second group perform uplink transmission in the first half frame and downlink transmission in the second half frame. One of the TDD basic frame structures in IEEE802.16m is shown in Figure 2, where every 4 frames (frame) form a superframe (superframe), each frame contains 8 subframes (subframe), each subframe contains 6 or 7 symbols. The TDD frame structure contains two uplink and downlink switching points, that is, switching from downlink to uplink in one frame, and switching from uplink to downlink at the end of a frame.

Since the uplink and downlink transmissions are sent alternately in time in H-FDD and TDD modes, in order to ensure the normal progress of the communication process, a correspondingly large enough time guard interval is required to separate the uplink and downlink transmissions of the same mobile station. At this time, the value of the corresponding time interval must satisfy the transition time from downlink to uplink TTG≥MSRTG+RTD, and the transition time from uplink to downlink RTG≥MSTTG-RTD, where TTG (Transmission-to-reception Transition Gap) is the transmission To receive transition interval, RTG (Reception-to-transmission Transition Gap) is the transition interval from reception to transmission, the prefix MS in MSTTG and MSRTG represents the mobile station, RTD (Round Trip Delay) is the round-trip transmission of wireless signals from the base station to the mobile station Time, the size of the RTD is related to the coverage of the base station, that is, the larger the cell, the larger the RTD value, and the smaller the cell, the smaller the RTD value.

In the course of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

In the H-FDD frame structure, it cannot perform uplink or downlink scheduling in the TTG or RTG time interval between two half-frames; similarly, in the TDD frame structure, the transition point from the downlink subframe to the uplink subframe is also Cannot be used for downstream or upstream transmission. It can be seen that TTG/RTG time separation is required for uplink and downlink scheduling of H-FDD and TDD mobile stations in the existing system, resulting in ineffective use of radio resources and wasting limited radio resources.

Contents of the invention

Embodiments of the present invention provide a method and device for implementing wireless transmission scheduling, thereby effectively improving the utilization rate of wireless resources in a wireless communication system.

A method for implementing wireless transmission scheduling, comprising:

In the scheduling switch interval between uplink transmission and downlink transmission of the mobile station, transmission scheduling for other mobile stations in the wireless communication system is performed.

A device for implementing wireless transmission scheduling, comprising:

A scheduling switching processing unit, configured to perform scheduling switching between uplink transmission and downlink transmission of the mobile station;

The transmission scheduling unit is used to perform scheduling switching intervals for uplink transmission and downlink transmission of the mobile station in the scheduling switching processing unit, and to perform transmission scheduling for other mobile stations in the wireless communication system.

A base station includes the above-mentioned device for realizing wireless transmission scheduling.

It can be seen from the above-mentioned technical solutions provided by the embodiments of the present invention that it separates the uplink and downlink scheduling of the current mobile station through transmission scheduling for different mobile stations, thereby effectively utilizing the difference between the uplink and downlink scheduling of the mobile station. The interval time between them can achieve the purpose of making full use of wireless resources and reduce the waste of wireless resources.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of an H-FDD frame structure in the prior art;

FIG. 2 is a schematic diagram of a TDD frame structure in the prior art;

FIG. 3 is a schematic diagram of an H-FDD frame structure provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a downlink resource assignment scheme 1 provided by an embodiment of the present invention;

FIG. 5 is a first schematic diagram of a downlink resource assignment scheme 2 provided by an embodiment of the present invention;

FIG. 6 is a second schematic diagram of a downlink resource assignment scheme 2 provided by an embodiment of the present invention;

FIG. 7 is a schematic diagram of a downlink resource assignment scheme 3 provided by an embodiment of the present invention;

FIG. 8 is a first schematic diagram of a TDD frame structure provided by an embodiment of the present invention;

FIG. 9 is a second schematic diagram of a TDD frame structure provided by an embodiment of the present invention;

FIG. 10A is a first structural schematic diagram of the device provided by the embodiment of the present invention;

FIG. 10B is a second structural schematic diagram of the device provided by the embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a base station provided by an embodiment of the present invention.

Detailed ways

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

In the technical solution for realizing wireless transmission scheduling provided by the embodiments of the present invention, specifically, at the scheduling switching interval between the uplink transmission and downlink transmission of the mobile station, the transmission scheduling for other mobile stations in the wireless communication system is executed, so as to make full use of the mobile station's The transmission scheduling of other mobile stations is performed at the interval time between the scheduling switch of the uplink transmission and the downlink transmission, so as to realize the effective utilization of radio resources.

In the above process, the mobile stations in the wireless communication system can also be divided into several groups. At this time, the corresponding wireless transmission scheduling scheme can be executed for other groups at the interval between uplink transmission and downlink transmission of a certain group of mobile stations. The transmission scheduling of the mobile stations in the same group separates the uplink and downlink transmission scheduling for the mobile stations in the same group from the transmission scheduling for the mobile stations in other groups.

Optionally, if the mobile stations in the wireless communication system are divided into several groups, during the process of the mobile station accessing the network, the network side may instruct the mobile station to access the group specified for the mobile station, so as to The mobile station can access the corresponding group according to the instructions of the network side. For example, the network side instructs the mobile station to access a certain group by sending a message, and different mobile stations can access different groups; or, the network side also The mobile station can be connected to a predetermined group, that is, it is not necessary to indicate that different mobile stations are connected to different groups. At this time, the corresponding mobile stations can be uniformly connected to the same group (ie, the corresponding predetermined group), In the subsequent scheduling process, the mobile station can also be transferred to a different group (the corresponding process of transferring to a different group can be flexibly determined by the network side according to the wireless transmission scheduling process).

In the embodiment of the present invention, the network side can also allocate resource blocks for uplink and downlink continuous transmission scheduling to mobile stations that need continuous transmission scheduling, that is, for mobile stations that need continuous transmission scheduling, uplink and downlink transmission can be performed. Resource allocation. in,

For the allocation of uplink continuous transmission scheduling resources, the mobile station can be notified in the previous downlink scheduling.

For the resource blocks allocated to the mobile station for downlink continuous transmission scheduling, the corresponding notification methods include:

(1) The network side will notify the mobile station once of the location and size of the resource allocated to the mobile station for downlink continuous transmission scheduling, so that the mobile station can learn the allocated continuous transmission scheduling only once The location and size of all resource blocks;

or,

(2) The location and size of the resource blocks allocated to multiple mobile stations for downlink transmission scheduling are uniformly notified to each mobile station in each subframe or frame or superframe or other predetermined units, that is, the The location and size of resource blocks allocated for multiple mobile stations are notified to each mobile station at one time through the overhead in one message, thereby saving signaling overhead in the wireless communication system; for example, at a predetermined location, multiple The index and bitmap corresponding to the resource blocks assigned by each mobile station in the mobile stations are notified to each mobile station, where the corresponding index refers to the sequence number of the mobile station in the resource allocation process, and the corresponding bitmap refers to The size of the resource blocks allocated by the mobile station can determine the order and size of the resource blocks allocated for a certain mobile terminal through the index and bitmap;

or,

(3) Notify the mobile station of the location and size of the resource block allocated to the mobile station for downlink transmission scheduling in each subframe or frame or superframe or other predetermined units, so that the mobile station can know The location and size of the resource block allocated for it.

The embodiment of the present invention can be specifically applied to, but not limited to, an H-FDD system or a TDD system.

The transmission scheduling scheme provided by the above embodiments of the present invention can effectively improve the utilization rate of wireless resources in the wireless communication system, and overcome the problems existing in the prior art.

To facilitate the understanding of the embodiments of the present invention, specific applications of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Namely, taking the basic frame structure of IEEE802.16m as a reference, a packet-based implementation scheme for scheduling H-FDD and TDD mobile stations is provided. Including dividing the H-FDD and TDD mobile stations into 4 groups and 2 groups respectively, and controlling and scheduling the uplink and downlink transmission of the mobile stations in each group so that they are separated from the mobile stations in other groups, thus saving The corresponding TTG and RTG achieve the purpose of effectively utilizing wireless resources.

Embodiment one

In the first embodiment, a packet scheduling scheme for H-FDD mobile stations is provided. And the first embodiment specifically provides a packet scheduling method for H-FDD mobile stations by taking the basic frame structure of IEEE802.16m as an example.

As shown in Figure 3, the first frame of each superframe in the IEEE802.16m basic frame structure contains a synchronization channel (SCH, Synchronization Channel) and a broadcast channel (BCH, Broadcast Channel). In each frame of each superframe, the uplink and downlink transmission processing can be performed through the method provided by the embodiment of the present invention.

In the first embodiment, the H-FDD mobile stations can be specifically divided into 4 groups. The subframes DL1, DL2, DL3 and DL4 in FIG. 3 represent the mobile stations in group 1, group 2, group 3 and group 4 respectively For downlink transmission, subframes UL1, UL2, UL3 and UL4 in FIG. 3 represent uplink transmissions of mobile stations in group 1, group 2, group 3 and group 4, respectively. The respective subframes are adjacent to each other, and the starting positions of the subframes are fixed.

Based on the above four different groups, the corresponding transmission scheduling process may include:

(1) The process of the mobile station accessing the network

When the mobile station accesses the network, it first synchronizes with the base station by scanning, and then analyzes the broadcast signal following the synchronization signal to obtain system parameters and system configuration information, including the size and starting position of each subframe.

The corresponding HH-FDD mobile station can specifically adopt the following two implementation schemes to realize group access:

Implementation scheme 1: All mobile stations uniformly access group 1 when they access the network. The mobile station initiates initial channel measurement in the subframe corresponding to group 1, and the base station responds in this group; after the mobile station accesses group 1, it can switch to other groups for communication as needed in the subsequent communication process;

Implementation scheme 2: The mobile station accesses the designated group according to the instructions of the base station. Specifically, the network side can inform the mobile station of the group selection rule by adding a new group selection descriptor in the broadcasted uplink channel description (UCD, Uplink Channel Descriptor); the mobile station selects the corresponding group according to the corresponding group selection rule, And initiate the initial channel measurement in the subframe corresponding to the selected group, and the base station replies in this group; similarly, after the mobile station accesses the selected group, the mobile station can switch to other groups as needed in the subsequent communication process. communication.

(2) Scheduling process for uplink and downlink transmission of different mobile stations

After the mobile station joins the network, the group information of the mobile station is saved at the base station and the mobile station side, and the uplink and downlink scheduling of the mobile stations in each group is performed in units of subframes, and only in the corresponding subframe. In Figure 3, one frame contains 8 subframes, so the mobile stations in each group will have a scheduling conversion of uplink and downlink transmission in a half frame, and repeat uplink and downlink transmission twice in a frame schedule conversion. Moreover, the scheduling switching of the uplink and downlink transmissions of the mobile stations in each group needs to be separated from the transmissions of other groups.

As shown in Figure 3, in the first half frame, the mobile stations in group 1 are scheduled for downlink and uplink transmission in subframes SF0 and SF2, and the mobile stations in group 3 are scheduled for uplink and downlink transmission. SF1 between SF0 and SF2 respectively space the downlink transmission of group 2 and the uplink transmission of group 4, so as to separate the scheduling of uplink and downlink transmission of group 1 and the scheduling of uplink and downlink transmission of group 3 through the transmission of other groups Scheduling; similarly, in the subframes SF1 and SF3, the mobile stations in group 2 are scheduled for downlink and uplink transmission, and the mobile stations in group 4 are scheduled for uplink and downlink transmission, and SF2 in the middle of SF1 and SF3 The downlink transmission of group 3 and the uplink transmission of group 1 are spaced respectively.

Since the uplink and downlink scheduling of the mobile stations in each group is separated by a subframe interval, it can ensure that there is enough time interval between uplink and downlink transmissions to meet the needs of TTG/RTG, so that there is no need to insert an additional TTG/RTG protection interval, so that the utilization rate of wireless resources of the wireless communication system can be improved.

In the above process, the transmission scheduling of each group only occupies one subframe, but in the actual system, because there may be a large amount of data between the H-FDD mobile station and the base station that needs to be interacted, at this time, the corresponding H-FDD - The FDD mobile station performs continuous scheduling across subframes. That is, if the current mobile station needs to occupy multiple consecutive subframe resources for continuous transmission scheduling, the current mobile station can continuously schedule subframes corresponding to multiple groups of mobile stations for continuous uplink and downlink transmission, so that the current mobile station Automatic switching between the multiple groups. Taking the resources that the current mobile station needs to occupy two consecutive subframes as an example, still referring to FIG. 3 , when the mobile station MS1 originally in group 1 needs to occupy resources of two subframes for transmission scheduling, the corresponding transmission The scheduling process can include:

The continuous scheduling may enable the mobile station MS1 to perform continuous downlink transmission in the subframe SF0 and the subframe SF1. And since the subframe SF1 is allocated to the mobile stations in group 2 for downlink transmission, it is equivalent to MS1 automatically switching to group 2, that is, the automatic group switching function is completed without additional signaling overhead.

In the next uplink scheduling, the mobile station MS1 will start the scheduling of uplink transmission from the uplink starting subframe of group 2, ie subframe 3. Similarly, if the uplink transmission also needs to be continuously allocated with two subframes, the uplink transmission may be performed in the subframe SF3 and the subframe SF4. And since the subframe SF4 is allocated to the mobile stations in group 3 for uplink transmission, it means that MS1 automatically switches to group 3 again at this time.

In the next downlink scheduling, the mobile station MS1 will start a new round of downlink transmission scheduling from the downlink starting subframe of group 3, ie subframe SF6.

In short, the start scheduling subframe of each mobile station may be specifically determined by the group in which the last subframe of the last uplink or downlink scheduling belongs. In such a cycle, the uplink and downlink transmission scheduling of the corresponding mobile station MS1 can be performed.

Further, in continuous resource scheduling, the assignment of uplink resources can only be specified in the previous downlink scheduling, including specifying the number of uplink subframes allocated continuously and the resource block position and size in each subsequent uplink subframe, etc.; The corresponding uplink starting subframe can be automatically obtained from the group in which the last downlink subframe belongs in the last downlink scheduling. Similarly, the next downlink starting subframe can be obtained according to the group in which the first uplink subframe belongs and the number of consecutively allocated uplink subframes in the last uplink scheduling.

Several possible resource assignment schemes in the downlink continuous resource scheduling process in the first embodiment will be described below with reference to the accompanying drawings.

Resource Assignment Scheme 1

In the resource assignment scheme 1, specifically, the corresponding downlink resource assignment operation is realized by way of early allocation. Specifically referring to FIG. 4 , assuming that a mobile station needs three subframes to be continuously allocated, the corresponding process of realizing downlink resource assignment through early allocation may include:

In addition to indicating the location and size of resource allocation in this subframe in the first downlink subframe, it may also indicate the location and size of resource allocation in all subsequent two downlink subframes. In this way, each mobile station only needs to parse the MAP (Media Access Protocol, Media Access Protocol) information once to obtain the allocation of resource blocks in three consecutive subframes.

It should be noted that when the resource assignment scheme 1 is applied in an actual system, the position and size of the corresponding resource block allocated in each subsequent downlink subframe can be fixed, or, in each subsequent downlink subframe The position and size of the allocated resource block may be different from the position and size of the resource block allocated in the first downlink subframe.

Resource Assignment Scheme 2

In the resource assignment scheme 2, specifically, the corresponding downlink resource assignment operation is implemented through region allocation. Specifically referring to FIG. 5, the corresponding process of implementing corresponding downlink resource assignment may include:

Allocate a resource area for all mobile stations that need continuous allocation, and the resource area can be fixedly arranged to occupy the last resource of each subframe as a predetermined position for continuous allocation of resources, so as to reduce possible resource fragments (resource holes) . The resource allocation of the mobile station in the resource area is continuous, which can be specifically indicated by defining two one-to-one corresponding parameters: index (index) and bitmap (bitmap). Among them, the index is a mobile station identification queue, indicating the sequence of mobile station resource allocation; corresponding to each mobile station in the queue, the resource size allocated to the mobile station is defined in the bitmap, and each mobile station The resource block allocated immediately after the previous mobile station resource block. The starting position of the resource area assigned to the mobile station may specifically be determined by accumulating the size of resources occupied by other mobile stations in the bitmap. In this way, in each subframe, the corresponding mobile station can obtain its specific resource allocation position and size in the corresponding resource region by analyzing the index and bitmap in the MAP, and determine the resource position and size it can occupy.

In an actual system, the position and size of the corresponding resource region can be fixed, or the size of the corresponding resource region can also be different in each subframe. If they are different, the starting point of the corresponding resource region The location can be determined from a bitmap in each subframe.

Specifically, an application example of implementing the corresponding downlink resource assignment operation through area allocation is shown in Figure 6, assuming that in this application scenario, it is necessary to implement corresponding continuous resource allocation processing for 4 mobile stations in 3 subframes, Then the corresponding continuous resource allocation scheme may include:

In the first subframe, the index indicates that the resource allocation sequence of the four mobile stations is MS1, MS2, MS3 and MS4, and the bitmap indicates that the four mobile stations need to occupy 2, 3, 1 and 2 resource blocks respectively; In this way, by parsing the corresponding index and bitmap, the starting positions of the respective resource regions corresponding to the four mobile stations can be obtained, and at the same time, each mobile station can also obtain the size information of its own resource block.

In the second subframe, MS2 ends the continuous allocation of resources. At this time, the corresponding index indicates that the resource allocation sequence is MS1, MS3 and MS4, and the corresponding bitmap indicates that 2, 1 and 2 resource blocks need to be occupied respectively; according to the new Index and bitmap, each mobile station can re-acquire the starting position of the new resource area and the resources allocated to itself.

In the third subframe, MS4 ends the continuous allocation of resources. At this time, the corresponding index indicates that the order of resource allocation is MS1 and MS3, and the corresponding bitmap indicates that 2 and 1 resource blocks need to be occupied respectively; according to the new index and bitmap , each mobile station can re-obtain the new starting position of the resource area and the resources allocated to it.

Resource Assignment Scheme 3

In the resource assignment scheme 3, specifically, the corresponding downlink resource assignment operation is realized through separate allocation. Specifically referring to FIG. 7, the corresponding process of implementing corresponding downlink resource assignment may include:

The continuous allocation of resources for each mobile station can be achieved by specifying the location and size of the resources allocated to the mobile station in each subframe. In this way, the mobile station needs to parse the MAP header of each subframe to obtain the resources specified for it. Resource information allocated.

In this resource assignment scheme, the resources continuously allocated between different mobile stations may not be adjacent, so a complete message is required to assign the starting position and resource size of resource information to each mobile station.

Embodiment two

In the second embodiment, a transmission scheduling implementation solution for TDD mobile stations is specifically provided. Specifically, the method of grouping TDD mobile stations is adopted in the TDD system to reduce TTG/RTG overhead.

In the TDD system, the TDD mobile station can be divided into two groups specifically, and the mobile station can use the same solution as the H-FDD mobile station to access the network to access group 1 or group 2. After the TDD mobile station accesses the TDD system, for the TDD frame structure containing two or four uplink and downlink conversion points, the corresponding transmission scheduling scheme may specifically include:

(1) A transmission scheduling method that contains two uplink and downlink conversion points in one frame

Referring to FIG. 8A and FIG. 8B , for an application scenario in which one frame contains two uplink and downlink conversion points, any of the following two methods can be used for transmission scheduling, wherein:

The first method: in this method, as shown in Figure 8A, the two groups first transmit downlink and then uplink, and make the transmission on both sides of the uplink and downlink conversion point belong to different groups through group scheduling;

The second method: in this method, as shown in Figure 8B, the uplink transmission is scheduled in the middle of a frame, and the downlink transmission is scheduled at the frame header and frame end. The transmissions on either side of the transition point belong to different groups.

Through the scheduling of the above two methods, the uplink and downlink scheduling of the same mobile station are not adjacent. Therefore, the corresponding uplink and downlink conversion only needs to meet the BSTTG (BSTransmission-to-reception Transition Gap) of the base station. Interval) and BSRTG (BS Reception-to-transmission Transition Gap, the conversion interval from receiving to sending of the base station) can be required, without being affected by MSTTG and MSRTG of the mobile station, and also not affected by the round-trip transmission between the base station and the mobile station Delayed RTD effects.

In FIG. 8A and FIG. 8B, the corresponding uplink-downlink conversion point can be dynamically adjusted as needed, and the size of each group (that is, the number of occupied subframes) can also be dynamically adjusted as needed.

(2) A transmission scheduling method with four uplink and downlink conversion points in one frame

Referring to FIG. 9 , in an application scenario where a corresponding frame contains four uplink and downlink conversion points, the transmissions on both sides of the uplink and downlink conversion points can be scheduled to belong to different groups respectively. At this time, the corresponding The uplink and downlink conversion time intervals are only determined by the BSTTG and BSRTG of the base station, and have nothing to do with the MSTTG and MSTRG of the mobile station, nor the coverage of the base station.

In the first and second embodiments above, only the basic frame format of IEEE802.16m is taken as an example to describe the specific implementation of the embodiment of the present invention, and it is assumed that resources are allocated in units of one subframe during the resource allocation process . It should be noted that the embodiment of the present invention is not limited to the IEEE802.16m system in the actual application process, and it can be specifically applied to any communication system that supports H-FDD, TDD, or the uplink and downlink cannot work at the same time. The resource allocation of the mobile stations in each group can use a subframe, frame or superframe as a resource allocation unit.

The scheduling scheme provided by the embodiment of the present invention specifically separates uplink and downlink scheduling by different groups, so that it is no longer necessary to insert TTG/RTG time intervals in the H-FDD and TDD frame structures, thereby saving guard interval overhead, In turn, the utilization rate of wireless resources can be effectively improved; moreover, since TTG is limited by the size of the cell, reducing the use of TTG also reduces the impact of cell size on resource utilization, which in turn enables the implementation of wireless resources in a larger cell coverage area. efficient use of resources.

Furthermore, in the embodiment of the present invention, in the H-FDD scheduling, it supports cross-group continuous allocation, which can well support asymmetric services and burst services, and at the same time has the function of smoothing the traffic of each group; the corresponding H-FDD scheduling The automatic group switching in the middle can not only save signaling overhead, but also because the starting position of each subframe is fixed, there will be no out-of-synchronization phenomenon, and continuous communication can be ensured.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be implemented through computer programs to instruct related hardware, and the programs can be stored in a computer-readable storage medium. During execution, it may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.

The embodiment of the present invention also provides a device for implementing wireless transmission scheduling, and its specific implementation structure is shown in Figure 10A and Figure 10B, which may include:

A scheduling switching processing unit 101, configured to perform scheduling switching between uplink transmission and downlink transmission of the mobile station, so as to control the corresponding time interval requirements between uplink transmission and downlink transmission of the same mobile station;

The transmission scheduling unit 102 is used to perform the scheduling conversion interval of the uplink transmission and the downlink transmission of the mobile station in the above-mentioned scheduling conversion processing unit 101, perform transmission scheduling for other mobile stations in the wireless communication system, and pass the transmission scheduling interval for other mobile stations Open the current uplink and downlink transmission scheduling switching process of the mobile station, so as to realize the effective use of wireless resources.

Optionally, if the mobile stations in the wireless communication system are divided into several groups, the above-mentioned transmission scheduling unit 102 may be specifically configured to perform scheduling switching intervals for the uplink transmission and downlink transmission of a certain group of mobile stations, and perform the scheduling for other groups The transmission scheduling of the mobile station is to realize the scheduling of the mobile stations in groups, and separate the uplink and downlink transmission scheduling for the mobile stations in the same group from the transmission scheduling for the mobile stations in other groups. Further, at this time, the corresponding scheduling conversion processing unit 101 can also be used to perform continuous transmission scheduling when the current mobile station needs to occupy resources of multiple consecutive subframes or frames or superframes or other predetermined units across groups, Continuously schedule subframes or frames or superframes or other predetermined units corresponding to multiple groups for the current mobile station to perform continuous uplink and downlink transmission, so that the current mobile station automatically switches between the multiple groups, and the current mobile station The initial scheduling subframe or frame or superframe or other predetermined unit of a station is determined by the group in which the last subframe or frame or superframe or other predetermined unit of the last uplink or downlink scheduling belongs.

Referring to FIG. 10B , in the device, specifically, an access processing unit 103 may also be included, configured to instruct the mobile station to access the group specified for the mobile station during the process of the mobile station accessing the network, Different mobile stations can be connected to different groups; or, it is used to allow mobile stations to be connected to a predetermined group, at this time, all mobile stations can be uniformly connected to the predetermined group during the access process.

Optionally, referring to FIG. 10B , in order to implement resource allocation for the mobile station, the device for implementing wireless transmission scheduling may further include the following units:

The resource allocation processing unit 104 is configured to allocate resource blocks for the mobile stations that need cross-group continuous resource scheduling to be provided to the transmission scheduling unit for uplink and downlink transmission scheduling, so that the above transmission scheduling unit can schedule corresponding resource blocks Realize uplink and downlink transmission scheduling for mobile stations;

The notification unit 105 is configured to notify the mobile station of the location and size of the resource block allocated by the resource allocation processing unit 104 to the mobile station. in,

In the process of processing uplink continuous resource allocation, the notification unit 105 may specifically assign the resources allocated by the resource allocation processing unit 104 to the mobile station for uplink continuous transmission scheduling (subsequent continuously allocated uplink subframes or frames or superframes or other The number of predetermined units and the resource block position and size in each subsequent uplink subframe or frame or superframe or other predetermined units, etc.), notify the mobile station in the previous downlink scheduling;

In the process of processing the continuous downlink resource allocation, the notification unit 105 may specifically assign the resources allocated by the above-mentioned resource allocation processing unit 104 to the mobile station for downlink continuous transmission scheduling (subsequent continuously allocated downlink subframes or frames or superframes or other scheduled resources) number of units and the position and size of resource blocks in each subsequent downlink subframe or frame or superframe or other predetermined units) to the mobile station once; or, the resource allocation processing unit 104 is divided into multiple The location and size of the resource blocks allocated by the mobile station for downlink continuous transmission scheduling are uniformly notified to each mobile station in each subframe or frame or superframe or other predetermined units; or, the above resource allocation processing unit 104 The location and size of the resource blocks allocated to the mobile station for downlink continuous transmission scheduling are notified to the mobile station in each subframe or frame or superframe or other predetermined units. Wherein, the notification unit 105 puts the position and size of the resource blocks allocated by the above-mentioned resource allocation processing unit 104 for multiple mobile stations for downlink continuous transmission scheduling in each subframe or frame or superframe or other predetermined units, etc. The process of uniformly notifying each mobile station may specifically notify each mobile station of the index and bitmap corresponding to the resource blocks allocated to each of the plurality of mobile stations at a predetermined position, wherein the corresponding index refers to The serial number of the mobile station in the resource allocation process, and the corresponding bitmap refers to the size of the resource block allocated for the mobile station.

An embodiment of the present invention also provides a base station, the specific implementation structure of which is shown in FIG. 11 , including the above-mentioned apparatus for implementing wireless transmission scheduling.

In the device for implementing wireless transmission scheduling and the corresponding base station provided by the embodiments of the present invention, the uplink and downlink transmission scheduling can be separated by transmission scheduling for different mobile stations, so that in the frame structure of the H-FDD system or the TDD system It is no longer necessary to insert the TTG/RTG time interval, so that the overhead of the guard interval can be saved, thereby effectively improving the utilization rate of wireless resources.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. A method for implementing wireless transmission scheduling, comprising:

performing transmission scheduling for other mobile stations in the wireless communication system at a scheduling switching interval of uplink transmission and downlink transmission of the mobile station;

when the mobile stations in the wireless communication system are divided into several groups, the step of performing the transmission scheduling for other mobile stations in the wireless communication system at the scheduling switching interval of the uplink transmission and the downlink transmission of the mobile stations comprises:

performing transmission scheduling for mobile stations of other groups at a scheduling switching interval of uplink transmission and downlink transmission of a certain group of mobile stations;

further comprising:

if the current mobile station needs to occupy the resources of a plurality of continuous subframes or frames or superframes for continuous transmission scheduling, continuously scheduling the subframes or frames or superframes corresponding to a plurality of groups for continuous uplink and downlink transmission of the current mobile station, so that the current mobile station is automatically switched among the groups, and the initial scheduling subframe or frame or superframe of the current mobile station is determined by the group where the last subframe or frame or superframe of the last uplink or downlink scheduling is located.

2. The method of claim 1, wherein during the process of the mobile station accessing the network, the method further comprises: the network side indicates the mobile station to be accessed into the group appointed for the mobile station; alternatively, the mobile station is accessed into a predetermined group.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

allocating resource blocks for performing uplink and downlink continuous transmission scheduling for a mobile station needing cross-group continuous resource scheduling;

informing the mobile station of the allocated resource blocks for uplink continuous transmission scheduling in the previous downlink scheduling; and notifying the mobile station once the number of the downlink subframes or frames or super frames allocated to the mobile station for the subsequent continuous allocation of the downlink continuous transmission scheduling and the position and size of the resource block in each subsequent downlink subframe or frame or super frame, or notifying the mobile station collectively the position and size of the resource block allocated to the mobile stations for the downlink continuous transmission scheduling in each subframe or frame or super frame, or notifying the mobile station the position and size of the resource block allocated to the mobile stations for the downlink continuous transmission scheduling in each subframe or frame or super frame.

4. The method according to claim 3, wherein the step of uniformly notifying the positions and sizes of the resource blocks allocated to the plurality of mobile stations for performing the downlink cross-group continuous transmission scheduling to the respective mobile stations in each subframe or frame or superframe specifically comprises:

and notifying each mobile station of an index and a bitmap corresponding to the resource block allocated to each mobile station in the plurality of mobile stations at the preset position, wherein the index refers to the serial number of the mobile station in the resource allocation process, and the bitmap refers to the size of the resource block allocated to the mobile station.

5. The method according to claim 1 or 2, wherein the wireless communication system comprises: time division duplex TDD systems or half frequency division duplex H-FDD systems.

6. An apparatus for implementing wireless transmission scheduling, comprising:

a scheduling conversion processing unit for performing scheduling conversion of uplink transmission and downlink transmission of the mobile station;

a transmission scheduling unit configured to perform transmission scheduling for other mobile stations in the wireless communication system at a scheduling switching interval between uplink transmission and downlink transmission of the mobile station in the scheduling switching processing unit;

when the mobile stations in the wireless communication system are divided into a plurality of groups, the transmission scheduling unit is specifically used for executing transmission scheduling aiming at the mobile stations in other groups at the scheduling switching interval of uplink transmission and downlink transmission of a certain group of mobile stations;

the scheduling conversion processing unit is further configured to continuously schedule the subframes or frames or superframes corresponding to multiple groups of mobile stations for continuous uplink and downlink transmission for the current mobile station when the current mobile station needs to occupy resources of multiple continuous subframes or frames or superframes for continuous transmission scheduling, so that the current mobile station is automatically converted between the multiple groups, and the initial scheduling subframe or frame or superframe of the current mobile station is determined by the group where the last subframe or frame or superframe of the last uplink or downlink scheduling is located.

7. The apparatus of claim 6, further comprising an access processing unit, configured to instruct the mobile station to access to a group designated for the mobile station during the process of accessing the network by the mobile station; or for the mobile station to access a predetermined group.

8. The apparatus of claim 6 or 7, further comprising:

a resource allocation processing unit, configured to allocate, to a mobile station that needs to perform cross-group continuous resource scheduling, a resource block provided to the transmission scheduling unit and used for performing uplink and downlink continuous transmission scheduling;

a notification unit configured to notify the mobile station of a position and a size of a resource block allocated to the mobile station by the resource allocation processing unit, the notification unit including: informing the mobile station in the previous downlink scheduling by the resource allocation processing unit according to the number of uplink sub-frames or super-frames which are allocated to the mobile station by the resource allocation processing unit and are used for subsequent continuous allocation of uplink continuous transmission scheduling and the position and the size of a resource block in each subsequent uplink sub-frame or super-frame; and notifying the mobile station of the number of the downlink sub-frames or super-frames which are allocated to the mobile station by the resource allocation processing unit and are used for subsequent continuous allocation of downlink continuous transmission scheduling and the position and size of the resource block in each subsequent downlink sub-frame or super-frame once, or notifying the mobile station of the position and size of the resource block which is allocated to the mobile station by the resource allocation processing unit and is used for downlink continuous transmission scheduling in each sub-frame or super-frame in a unified manner, or notifying the mobile station of the position and size of the resource block which is allocated to the mobile station by the resource allocation processing unit and is used for downlink continuous transmission scheduling in each sub-frame or super-frame.

9. The apparatus according to claim 8, wherein the notifying unit collectively notifies the locations and sizes of the resource blocks allocated to the plurality of mobile stations for downlink continuous transmission scheduling to the respective mobile stations in each subframe, frame or superframe specifically includes:

and notifying each mobile station of an index and a bitmap corresponding to the resource block allocated to each mobile station in the plurality of mobile stations at the preset position, wherein the index refers to the serial number of the mobile station in the resource allocation process, and the bitmap refers to the size of the resource block allocated to the mobile station.

10. A base station comprising the apparatus for performing scheduling of wireless transmissions of any of claims 6 to 9.

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