WO2010099648A1 - Method and equipment for accomplishing wireless transmission scheduling - Google Patents

Abstract

A method for accomplishing wireless transmission scheduling and the equipment thereof are provided in the present invention, so as to carry out the transmission scheduling of other mobile stations in a wireless communication system during the scheduling transition intervals between the uplink transmission and the downlink transmission of mobile stations. The uplink scheduling and the downlink scheduling of the current mobile station are separated through the transmission scheduling of different mobile stations in the embodiment of the present invention, thereby the intervals between the uplink scheduling and the downlink scheduling of mobile stations are used efficiently, the intention of using wireless resources sufficiently is achieved further, and the waste of wireless resources is reduced.

Description

 Method and device for realizing wireless transmission scheduling

 [1] Technical field

 [2] The present invention relates to the field of communications technologies, and in particular, to a technology for implementing wireless transmission scheduling.

 [3] Background of the invention

 [4] Currently, there are two main modes of multiplexing in the communication system: Frequency Division Duplex (FDD, Frequency)

Division Duplexing) and Divisional Duplex (TDD, Time Division)

 Duplexing). Among them, the FDD is continuous on the daytime, and the uplink and downlink transmissions are distributed on different frequency bands; and the uplink and downlink transmission of the TDD is transmitted in the same frequency band to achieve the multiplexing effect. The corresponding FDD mobile station can also operate in the Half-Frequency Division Duplex (H-FDD) mode. In addition to the characteristics of FDD's bifurcation in the frequency band, H-FDD also has the characteristics of TDD transmission in the inter-turn.

[5] Specifically, the frame structure in the IEEE802.16e protocol uses one frame to divide into two fields to support H-FD.

D mobile station, as shown in Figure 1, the corresponding H-FDD mobile station is divided into two groups, the H-FD D mobile station in the first group performs downlink transmission in the first half frame, and the uplink transmission is performed in the second half frame. The H-FDD mobile station in the second group performs 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 FIG. 2, where every 4 frames form a superframe; each frame contains 8 subframes, and each subframe contains 6 or 7 symbols. The TDD frame structure includes two uplink and downlink transition points, that is, from downlink to uplink in one frame, and from uplink to downlink at the end of one frame.

 [6] Since the uplink and downlink transmissions in the H-FDD and TDD modes are transmitted alternately in the inter-turn, in order to ensure the normal progress of the communication process, a correspondingly large inter-turn protection interval is required to separate the uplink and downlink transmissions of the same mobile station. . In this case, the corresponding inter-turn interval value must satisfy the downlink-to-uplink transition time between TTG≥MSR TG+RTD, and the uplink-to-downlink transition time between RTG≥MSTTG-RTD, where TTG (Transmissi on-to-reception) Transition

 Gap) is sent to receive transition interval, RTG (Reception-to-transmission Transition

Gap) is the receive-to-transfer transition interval. The prefix MS in MSTTG and MSRTG stands for mobile station, RTD (Round Trip

 Delay) is the round-trip transmission time of the wireless signal from the base station to the mobile station. 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.

[7] In the process of implementing the present invention, the inventors found that at least the following problems exist in the prior art:

 [8] In the H-FDD frame structure, it cannot perform uplink or downlink scheduling within the TTG or RTG inter-frame interval between two fields; likewise, in the TDD frame structure, from the downlink subframe to the uplink subframe The conversion point cannot be used for downlink or uplink transmission. It can be seen that in the existing system, the uplink and downlink scheduling of the H-FDD and TDD mobile stations requires TTG/RTG inter-time separation, which causes the radio resources to be effectively utilized and wastes limited radio resources.

[9] Summary of the invention

 [10] Embodiments of the present invention provide a method and apparatus for implementing wireless transmission scheduling, thereby effectively improving utilization of radio resources in a wireless communication system.

[11] A method for implementing wireless transmission scheduling, comprising:

 [12] The transmission scheduling for the other mobile stations in the wireless communication system is performed at the scheduled switching interval of the uplink and downlink transmissions of the mobile station.

[13] A device for implementing wireless transmission scheduling, comprising:

 [14] a scheduling conversion processing unit, configured to perform scheduling conversion of uplink transmission and downlink transmission of the mobile station;

[15] A transmission scheduling unit, configured to perform a transmission scheduling for other mobile stations in the wireless communication system by performing a scheduling transition interval of the uplink transmission and the downlink transmission of the mobile station by the scheduling conversion processing unit.

[16] A base station comprising the above apparatus for implementing wireless transmission scheduling.

 [17] It can be seen from the technical solution provided by the foregoing embodiments of the present invention that the uplink and downlink scheduling of the current mobile station are separated by transmission scheduling for different mobile stations, thereby effectively utilizing the uplink and downlink of the mobile station. Interval between schedulings, in order to achieve the purpose of making full use of wireless resources, reducing the waste of wireless resources.

 [18] BRIEF DESCRIPTION OF THE DRAWINGS

[19] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some implementations of the present invention. For example, for those skilled in the art, without paying for creative labor, Other drawings can be obtained from these figures.

[20] FIG. 1 is a schematic structural diagram of an H-FDD frame in the prior art;

[21] FIG. 2 is a schematic structural diagram of a TDD frame in the prior art;

FIG. 3 is a schematic structural diagram of an H-FDD frame according to an embodiment of the present invention; FIG.

4 is a schematic diagram of a downlink resource assignment scheme 1 according to an embodiment of the present invention;

[24] FIG. 5 is a schematic diagram 1 of a downlink resource assignment scheme 2 according to an embodiment of the present invention;

6 is a schematic diagram 2 of a downlink resource assignment scheme 2 according to an embodiment of the present invention;

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

FIG. 8 is a schematic structural diagram 1 of a TDD frame according to an embodiment of the present invention; FIG.

FIG. 9 is a second schematic structural diagram of a TDD frame according to an embodiment of the present invention; FIG.

FIG. 10A is a schematic structural diagram 1 of a device according to an embodiment of the present invention; FIG.

FIG. 10B is a second schematic structural diagram of a device according to an embodiment of the present invention; FIG.

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

[32] Mode for carrying out the invention

 The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

 [34] In the technical solution for implementing wireless transmission scheduling provided by the embodiment of the present invention, specifically, in a scheduling transition interval of uplink transmission and downlink transmission of a mobile station, performing transmission scheduling for other mobile stations in the wireless communication system, thereby fully utilizing The transmission scheduling of other mobile stations is performed during the interval between the uplink transmission of the mobile station and the scheduling conversion of the downlink transmission, thereby realizing efficient use of the radio resources.

 [35] In the above processing, the mobile stations in the wireless communication system may also be divided into groups, and accordingly, the corresponding wireless transmission scheduling scheme may be executed at a scheduling transition interval of uplink transmission and downlink transmission of a certain group of mobile stations. For the transmission scheduling of other groups of mobile stations, the uplink and downlink transmission schedules for mobile stations within the same group are separated by transmission schedules for mobile stations in other groups.

[36] Optionally, if the mobile stations in the wireless communication system are divided into groups, in 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. In order to make The mobile station can access the corresponding group according to the indication of the network side, for example, the network side indicates that the mobile station accesses a certain group by sending a message, and different mobile stations can access different groups; or, the network side can also The mobile station is allowed to access the predetermined group, that is, the different mobile stations need not be instructed to access different groups, and accordingly, the corresponding mobile station can uniformly access the same group (ie, the corresponding predetermined group), In the subsequent scheduling process, the mobile station can also be transferred to different groups (the corresponding process of transferring to different groups can be flexibly determined by the network side according to the wireless transmission scheduling process).

[37] In the embodiment of the present invention, the mobile station that needs continuous transmission scheduling may be allocated by the network side for resource blocks for performing uplink and downlink continuous transmission scheduling, that is, for a mobile station that needs continuous transmission scheduling, Downlink transmission for resource allocation. among them,

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

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

 [40] (1) The network side notifies the mobile station of the location and size of the resource allocated for the downlink continuous transmission scheduling for the mobile station, so that only one notification is required, and the mobile station can learn to allocate it. Continuous transmission schedules the location and size of all resource blocks;

 [41] Or,

 [42] (2) The location and size of the resource blocks allocated for the downlink transmission scheduling allocated for the plurality of mobile stations are uniformly notified to the respective mobile stations in each subframe or frame or superframe or other predetermined unit, and the like. That is, the location and size of resource blocks allocated for multiple mobile stations can be notified to each mobile station at a time by the overhead in one message, thereby saving signaling overhead in the wireless communication system; for example, at a predetermined location The index and the bitmap corresponding to the resource blocks respectively allocated to the mobile stations in the plurality of mobile stations are notified to the mobile stations, 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 to the mobile station, and the order and size of the resource blocks allocated to a mobile terminal can be determined through the index and the bitmap;

 [43] Or,

[44] (3) notifying the mobile station of the location and size of the resource block allocated for the downlink transmission scheduling for the mobile station in each subframe or frame or superframe or other predetermined unit, etc., thus moving The station can know the location and size of the resource blocks it is assigned to. [45] Embodiments of the present invention may specifically, but not limited to, be applied to an H-FDD system or a TDD system.

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

 In order to facilitate the understanding of the embodiments of the present invention, the specific application of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. That is, based on the basic frame structure of IEEE802.16m, a packet-based implementation scheme for scheduling H-F DD and TDD mobile stations is provided. Including separately dividing the H-FDD and TDD mobile stations into 4 groups and 2 groups, and controlling the uplink and downlink transmissions of the mobile stations in each group to be separated by the mobile stations in other groups, thereby eliminating the need to omit The corresponding TTG, RTG, achieve the purpose of effectively utilizing wireless resources.

 [48] Embodiment 1

 [49] In the first embodiment, a packet scheduling scheme for an H-FDD mobile station is provided. The first embodiment of the present invention provides a packet scheduling manner for an H-FDD mobile station by taking an IEEE 802.16m basic frame structure as an example.

 [50] As shown in FIG. 3, a synchronization channel (S CH, Synchronization Channel) and a broadcast channel (BCH, Broadcast) are included in the first frame of each superframe of the IEEE 802.16m basic frame structure.

 Channels In each frame of each superframe, the uplink and downlink transmission processing can be performed in the manner provided by the embodiment of the present invention.

 [51] In the first embodiment, the H-FDD mobile station can be specifically divided into four groups, and the subframes DL1, DL 2, DL3 and DL4 in FIG. 3 represent group 1, group 2, group 3 and group 4, respectively. The downlink transmission of the intra-mobile station, the subframes UL1, UL2, UL3 and UL4 in Fig. 3 represent the uplink transmissions of the mobile stations in group 1, group 2, group 3 and group 4, respectively. Each of the corresponding sub-frames is adjacent, and the start position of the sub-frame is fixed.

 [52] Based on the four different groups divided above, the corresponding transmission scheduling process may include:

 [53] (1) The process of the mobile station accessing the network

 [54] After the mobile station enters the network, it first synchronizes with the base station by scanning, and then parses the broadcast signal immediately following the synchronization signal to obtain system parameters and system configuration information, including the size and starting position of each subframe.

 [55] The corresponding HH-FDD mobile station can implement group access by using the following two implementation schemes:

 [56] Implementation 1: All mobile stations are connected to the network and unified access group 1. The mobile station initiates initial channel measurement in the subframe corresponding to group 1, and the base station replies in the group; after the mobile station accesses group 1, it can switch to other groups for communication in the subsequent communication process as needed;

[57] Implementation 2: The mobile station accesses the specified group as indicated by the base station. Specifically, the network side can pass through Upstream Channel Description (UCD, Uplink Channel)

 Descriptor) adds a new group selection descriptor to inform the mobile station group selection rule; the mobile station selects the corresponding group according to the corresponding group selection rule, and initiates initial channel measurement in the subframe corresponding to the selected group, the base station is In this group, after the mobile station accesses the selected group, the mobile station can switch to other groups for communication as needed during the subsequent communication.

[58] (2) Scheduling process for uplink and downlink transmissions of different mobile stations

 [59] After the mobile station accesses the network, the group information of the mobile station is saved on the base station and the mobile station side, and the uplink and downlink scheduling of the mobile station in each group is performed in units of subframes only in the corresponding subframe. In Figure 3, one frame contains 8 sub-frames, so the mobile stations in each group are in the half frame (half

 There will be a scheduling conversion of uplink and downlink transmissions in frame), and there are two scheduling conversions of uplink and downlink transmissions in one frame. Moreover, the scheduled transition of the uplink and downlink transmissions of the mobile stations within each group requires transmissions of one other group.

 [60] As shown in FIG. 3, in the first half frame, the downlink and uplink transmission scheduling is performed on the mobile stations in the group 1 in the subframes SF0 and SF2, and the uplink and downlink transmissions are performed on the mobile stations in the group 3 in the same manner. Scheduling, the downlink transmission of group 2 and the uplink of group 4 are respectively separated at SF1 between SF0 and SF2, thereby scheduling the uplink and downlink transmissions of group 1 through the transmission group of other groups, and the upper and lower transmissions of group 3 The scheduling of the downlink transmission; for the same reason, the downlink and uplink transmission scheduling is performed on the mobile stations in the group 2 in the subframes S F1 and SF3, and the uplink and downlink transmission scheduling is performed on the mobile stations in the group 4, The downlink transmission of group 3 and the uplink transmission of group 1 are respectively separated by SF2 between SF1 and SF3.

 [61] Since the uplink and downlink scheduling of the mobile stations in each group is separated by one subframe, it is ensured that there is sufficient inter-time interval between the uplink and downlink transmissions to meet the TTG/RTG requirement, so that no additional insertion is required. The TTG/RTG guard interval can improve the radio resource utilization of the wireless communication system.

[62] In the above process, the transmission schedule of each group occupies only one subframe, but in the actual system, since there may be a large amount of data between the H-FDD mobile station and the base station, it is necessary to interact. The corresponding H-FDD mobile station performs continuous scheduling across subframes. That is, if the current mobile station needs to occupy the resources of multiple consecutive subframes for continuous transmission scheduling, the current mobile station may continuously schedule the subframes corresponding to the multiple groups of mobile stations for continuous uplink and downlink transmission, so that the current mobile station The plurality of groups are automatically converted between. Taking the resource that the current mobile station needs to occupy two consecutive subframes as an example, still referring to FIG. 3, when the group is originally in the group The mobile station MSI in 1 needs to occupy the resources of two subframes for transmission scheduling, and the corresponding transmission scheduling process may include:

 [63] The mobile station MS1 can be continuously scheduled for continuous downlink transmission in the subframe SF0 and the subframe SF1. And since the subframe SF1 is allocated to the mobile station in the group 2 for downlink transmission, this is equivalent to the automatic conversion of the MS1 to the group 2, that is, the automatic group conversion function is completed without additional signaling overhead.

 [64] In the next uplink scheduling, the mobile station MS1 will start the scheduling of the uplink transmission from the uplink start subframe of the group 2, that is, the subframe 3. Similarly, if the uplink transmission also requires two subframes to be continuously allocated, uplink transmission can be performed in the subframe SF3 and the subframe SF4. And since the subframe SF4 is allocated to the mobile station in the group 3 for uplink transmission, this is equivalent to the MS1 and automatically switches to the group 3.

 [65] In the next downlink scheduling, the mobile station MS1 will start a new round of downlink transmission scheduling from the downlink start subframe of group 3, i.e., subframe SF6.

 [66] In summary, the initial 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 is located. In this cycle, the scheduling of the uplink and downlink transmissions of the corresponding mobile station MS1 can be performed.

 [67] Further, in continuous resource scheduling, the assignment of the uplink resource can only be specified in the previous downlink scheduling, including specifying the number of consecutively allocated uplink subframes and the resource block location in each subsequent uplink subframe. The size and the like; the corresponding uplink start subframe can be automatically obtained by the group in which the last downlink subframe in the last downlink scheduling is located. Similarly, the next downlink start subframe may be obtained according to the group in which the first uplink subframe is located in the last uplink scheduling and the number of consecutive uplink subframes allocated.

 [68] The resource assignment schemes in the downlink continuous resource scheduling process that can be used in the first embodiment are described in the following with reference to the accompanying drawings.

 [69] Resource Assignment Scheme 1

 [70] In the resource allocation scheme 1, the corresponding downlink resource assignment operation is implemented by means of early allocation. Referring to FIG. 4, it is assumed that a mobile station needs to allocate three subframes consecutively, and the corresponding process of implementing downlink resource assignment by means of early allocation may include:

[71] In addition to indicating the location and size of resource allocation in the current subframe in the first downlink subframe, peers 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 once (Media Access Protocol, Media Access Protocol) information can be obtained in the case of resource block allocation in three consecutive subframes.

 [72] It should be noted that: in the actual system, the resource allocation scheme is applied, and the location and size of the corresponding resource blocks allocated in each subsequent downlink subframe may be fixed, or, in each subsequent downlink. The location and size of the resource blocks allocated in the subframe may be different from the location and size of the resource blocks allocated in the first downlink subframe.

 [73] Resource Assignment Scheme 2

 [74] In the resource allocation scheme 2, the corresponding downlink resource assignment operation is implemented by means of regional allocation. Referring to FIG. 5, the corresponding process of implementing the corresponding downlink resource assignment may include:

[75] All mobile stations that need to be continuously allocated are allocated a resource area, which can be fixedly arranged to occupy the last piece of resources of each subframe as a predetermined position for continuous resource allocation, so as to reduce possible resource fragments ( Resource

 The resource allocation of the mobile station in the resource area is continuous, and can be specified by defining two one-to-one parameters: an index and a bitmap. Wherein, the index is a mobile station identification queue indicating the order of allocation of the mobile station resources; corresponding to each mobile station in the queue, the size of the resource allocated to the mobile station is defined in the bitmap, and each mobile station The resource block is allocated immediately after the previous mobile station resource block. The starting location of the resource region assigned to the mobile station may be specifically determined by the size of resources occupied by other mobile stations in the accumulated bitmap. In this way, in each subframe, the corresponding mobile station can obtain the specific resource allocation location and size in the corresponding resource region by parsing the index and the bitmap in the MAP, and determine the resource location and size that can be occupied.

 [76] In an actual system, the location and size of the corresponding resource region may be fixed, or the size of the corresponding resource region may be different in each subframe. If different, the corresponding resource region The starting position can be determined from the bitmap in each subframe.

 [77] Specifically, an application example of implementing a corresponding downlink resource assignment operation by means of area allocation is shown in FIG. 6 , and it is assumed that in the application scenario, corresponding continuous resources need to be implemented for three mobile stations in three subframes. For the allocation process, the corresponding continuous resource allocation scheme may include:

[78] In the first subframe, the resource allocation order of the four mobile stations is indicated by the index to be MS1, MS2, MS3 and MS4, and the bitmaps indicate that the four mobile stations need to occupy 2, 3, 1 and 2 respectively. Resource block; After parsing the corresponding index and bitmap, the starting position of the resource region corresponding to each of the four mobile stations can be obtained, and at the same time, each mobile station can also obtain the size information of the resource block belonging to itself.

[79] In the second subframe, MS2 ends the resource allocation continuously. Therefore, the corresponding index indicates that the resource allocation order is MS1.

 MS3 and MS4, the corresponding bitmap indications need to occupy 2, 1 and 2 resource blocks respectively; according to the new index and bitmap, each mobile station can regain the new resource area starting position and the resources allocated to itself.

[80] In the third subframe, MS4 ends the resource allocation continuously. In this case, the corresponding index indicates the resource allocation order is MS1 and

 MS3, the corresponding bitmap indication needs to occupy 2 and 1 resource blocks respectively; according to the new index and bitmap, each mobile station can regain the new resource area starting position and the resources allocated to itself.

[81] Resource Assignment Scheme 3

 [82] In the resource allocation scheme 3, the corresponding downlink resource assignment operation is implemented by means of separate allocation. Referring to FIG. 7 , the corresponding process of implementing the corresponding downlink resource assignment may include: [83] continuously allocating resources for each mobile station, specifically by assigning each mobile station to each mobile station. The resource location and size are implemented such that the mobile station needs to parse the MAP header of each subframe to obtain resource information for its assignment.

[84] In the resource assignment scheme, resources allocated continuously between different mobile stations may be non-contiguous, and thus a complete message is required for the starting location and resource size of the resource information assigned to each mobile station.

 [85] Example 2

 [86] In the second embodiment, a transmission scheduling implementation scheme for a TDD mobile station is specifically provided. Specifically, the TDD/RTG overhead is reduced by means of grouping TDD mobile stations in the TDD system.

 [87] In the TDD system, the TDD mobile station can be divided into two groups. The mobile station access network can access the group 1 or group 2 with the same scheme as the H-F DD mobile station. After the TDD mobile station accesses the TDD system, the corresponding transmission scheduling scheme may specifically include: for a TDD frame structure including two or four uplink and downlink transition points:

 [88] (1) Transmission scheduling method with two uplink and downlink transition points in one frame

[89] Referring to FIG. 8A and FIG. 8B, for an application scenario that includes two uplink and downlink transition points in one frame, The body can use either of the following two methods for transmission scheduling, where:

 [90] The first mode: In this mode, as shown in FIG. 8A, the two groups transmit downlink and then uplink, and perform packet scheduling so that the transmissions on both sides of the uplink and downlink transition points belong to different groups;

[91] The second mode: In this mode, as shown in FIG. 8B, the uplink transmission is scheduled in the middle of one frame, and the downlink transmission is scheduled at the frame header and the end of the frame. Similarly, the scheduling sequence is required to be up and down. The transmissions on both sides of the conversion point of the line transfer belong to different groups.

[92] Through the above two modes of scheduling, the uplink and downlink scheduling of the same mobile station is not adjacent, therefore, the corresponding uplink and downlink conversion only needs to satisfy the BSTTG of the base station (BS Transmission-to-reception)

Transition Gap, the base station from the transmission to the receiving transition interval) and BSRTG (BS

 Reception-to-transmission Transition

 Gap, the base station can receive the transmission interval from the request, without being affected by the mobile station MSTTG and MSRT G, and the peer is not affected by the round-trip transmission between the base station and the mobile station.

 In Fig. 8A and Fig. 8B, the corresponding uplink and downlink transition points can be dynamically adjusted as needed, and the size of each group (i.e., the number of occupied subframes) can also be dynamically adjusted as needed.

 [94] (2) Transmission scheduling method with four uplink and downlink transition points in one frame

 [95] Referring to FIG. 9, in an application scenario in which four uplink and downlink transition points are included in a corresponding frame, the transmissions on both sides of the uplink and downlink transition points may be respectively assigned to different groups by scheduling. The corresponding uplink-downlink conversion interval is determined only by the base station's BSTTG and BSRTG, and is independent of the mobile station's MSTTG and MSTRG, and is also independent of the base station coverage.

 [96] In the above-mentioned first embodiment and the second embodiment, the specific implementation of the embodiment of the present invention is described by taking the basic frame format of the IEEE 802.16m as an example, and a sub-frame is assumed in the resource allocation process. Make allocations. It should be noted that, in the actual application process, the embodiment of the present invention is not limited to the IEEE 802.16m system, and may be specifically applicable to any communication system that supports H-FDD, TDD, or uplink and downlink operations.资源 For the resource allocation of mobile stations in each group, subframes, frames or superframes can be used as resource allocation units.

The scheduling scheme provided by the embodiment of the present invention specifically separates the uplink and downlink scheduling by different groups, so that the TTG/RTG inter-turn interval is no longer needed in the H-FDD and TDD frame structure, thereby saving protection. Interval sales, which can effectively improve the utilization of wireless resources; and, because TTG is limited to large cells Small, reducing the use of TTG also reduces the impact of cell size on resource utilization, thereby enabling efficient use of wireless resources within a larger cell coverage.

 [98] Furthermore, in the embodiment of the present invention, cross-group continuous allocation is supported in H-FDD scheduling, which can support asymmetric services and burst services well, and has the function of smoothing each group of service traffic; Automatic group conversion in H-FDD scheduling can not only save signaling overhead, but also because the starting position of each subframe is fixed, no out-of-synchronization phenomenon occurs, and communication is guaranteed to continue.

 [99] A person skilled in the art can understand that all or part of the process of implementing the foregoing embodiment method can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. The program, after execution, may include the flow of an embodiment of the methods as described above. The storage medium may be a magnetic disk, an optical disk, or a read-only storage memory (Read-Only)

 Memory, ROM) or Random Access Memory (RAM).

 An embodiment of the present invention further provides an apparatus for implementing wireless transmission scheduling. The specific implementation structure is as shown in FIG. 10A and FIG. 10B, and may include:

 [101] The scheduling conversion processing unit 101 is configured to perform scheduling conversion of the uplink transmission and the downlink transmission of the mobile station, so as to control the corresponding inter-turn interval requirement between the uplink transmission and the downlink transmission of the same mobile station;

 [102] The transmission scheduling unit 102 is configured to perform a scheduling transition interval for the uplink transmission and the downlink transmission of the mobile station in the scheduling conversion processing unit 101, and perform transmission scheduling for other mobile stations in the wireless communication system, by using for other mobile stations. The transmission schedule separates the ongoing uplink and downlink transmission scheduling conversion process of the current mobile station, thereby realizing efficient use of radio resources.

[103] Optionally, if the mobile stations in the wireless communication system are divided into groups, the foregoing transmission scheduling unit 102 may be specifically configured to perform a scheduling transition interval of performing uplink transmission and downlink transmission of a certain group of mobile stations, and performing For the transmission scheduling of other groups of mobile stations, that is, the packets are scheduled to be scheduled to the mobile station, and the uplink and downlink transmission scheduling for the mobile stations in the same group are separated by the transmission scheduling for the mobile stations in the other group. Further, the corresponding scheduling conversion processing unit 101 may be further configured to perform continuous transmission scheduling on a resource that the current mobile station needs to occupy a plurality of consecutive subframes or frames or superframes or other predetermined units across the group. Performing continuous uplink and downlink transmission for the current mobile station to continuously schedule multiple subframes or frames or superframes or other predetermined units, etc., so that the current mobile station automatically switches between the multiple groups, and the current mobile The initial scheduling subframe or frame or superframe or other predetermined unit of the station is up by the last uplink Or the last subframe or frame of the downlink scheduling or the group in which the superframe or other predetermined unit is located.

Referring to FIG. 10B, in the device, the method further includes an access processing unit 103, configured to: when the mobile station accesses the network, instruct the mobile station to access the designated for the mobile station. In the group, different mobile stations can access different groups; or, for the mobile station to access the predetermined group, each mobile station can uniformly access the predetermined group in the access process.

[105] Optionally, as shown in FIG. 10B, in order to implement resource allocation for a mobile station, the following unit may be further included in the apparatus for implementing wireless transmission scheduling:

[106] The resource allocation processing unit 104 is configured to allocate, for the mobile station that needs to perform cross-group continuous resource scheduling, a resource block for providing uplink and downlink transmission scheduling to the transmission scheduling unit, so that the foregoing transmission scheduling unit can schedule the corresponding The resource block implements uplink and downlink transmission scheduling for the mobile station;

[107] 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 for the mobile station. among them,

[108] The notification unit 105 may specifically allocate the resources allocated by the resource allocation processing unit 104 for the uplink continuous transmission scheduling by the resource allocation processing unit 104 in the process of processing the uplink continuous resource allocation (the subsequent consecutively allocated uplink subframe or frame or super Notifying the mobile station in the previous downlink scheduling, the frame or other predetermined unit equals and the resource block position and size in each subsequent uplink subframe or frame or superframe or other predetermined unit or the like;

[109] The notification unit 105 may specifically allocate, in the process of processing the downlink continuous resource allocation, the resources allocated by the resource allocation processing unit 104 for the downlink continuous transmission scheduling (the subsequent consecutively allocated downlink subframe or frame or superframe). Or the other predetermined unit equals and the resource block position and size in each subsequent downlink subframe or frame or superframe or other predetermined unit, etc.) are notified to the mobile station at a time; or, the resource allocation processing unit 104 is The location and size of the resource blocks allocated for the downlink continuous transmission scheduling allocated for the plurality of mobile stations are uniformly notified to the respective mobile stations in each subframe or frame or superframe or other predetermined unit or the like; or, the resource allocation is performed The location and size of the resource blocks allocated by the processing unit 104 for the downlink continuous transmission scheduling for the mobile station are notified to the mobile station in each subframe or frame or superframe or other predetermined unit or the like. The notification unit 105 sets the location and size of the resource block for performing downlink continuous transmission scheduling allocated by the resource allocation processing unit 104 for the plurality of mobile stations in each subframe or frame or superframe or other predetermined unit, and the like. The process of unified notification to each mobile station can be specifically at the pre-position The index and the bitmap corresponding to the resource blocks respectively allocated to the mobile stations in the plurality of mobile stations are notified to the mobile stations, wherein the corresponding index refers to the serial number of the mobile station in the resource allocation process, and the corresponding bit The figure refers to the size of the resource block allocated for the mobile station.

The embodiment of the present invention further provides a base station, and the specific implementation structure thereof is as shown in FIG. 11, and includes the foregoing apparatus for implementing wireless transmission scheduling.

 The apparatus for implementing wireless transmission scheduling and the corresponding base station provided by the embodiments of the present invention may separate uplink and downlink transmission scheduling by transmission scheduling for different mobile stations, so that the H-FDD system or the TDD system It is no longer necessary to insert a TTG/RTG inter-frame interval in the frame structure, thereby saving protection interval overhead and effectively improving the utilization of radio resources.

 The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of within the technical scope disclosed by the present invention. Changes or substitutions are intended to be included within the scope of the invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

Claim  [1] A method for implementing wireless transmission scheduling, comprising:  Transmission scheduling for other mobile stations in the wireless communication system is performed at scheduled handover intervals of uplink and downlink transmissions of the mobile station.  [2] The method according to claim 1, wherein the mobile station in the wireless communication system is divided into a plurality of groups, and the scheduled switching interval of the uplink transmission and the downlink transmission at the mobile station is performed for wireless The steps of transmission scheduling of other mobile stations in the communication system include: performing scheduling transmissions for other groups of mobile stations at scheduled switching intervals of uplink transmission and downlink transmission of a certain group of mobile stations.  [3] The method according to claim 2, wherein, in the process of the mobile station accessing the network, the method further comprises: the network side instructing the mobile station to access the designated for the mobile station In the group Or, the mobile station accesses a predetermined group. [4] The method according to claim 2 or 3, wherein the method further comprises:  Allocating resource blocks for performing uplink and downlink continuous transmission scheduling for mobile stations that need to be scheduled across consecutive resources;  And allocating a resource block for performing uplink continuous transmission scheduling, notifying the mobile station in a previous downlink scheduling; and transmitting, to the mobile station, a downlink sub-distribution for performing downlink continuous transmission scheduling The frame or frame or the number of super frames and the location and size of the resource blocks in each subsequent downlink subframe or frame or superframe are notified to the mobile station once, or are allocated for a plurality of the mobile stations for performing The location and size of the resource block of the downlink continuous transmission scheduling are uniformly notified to each mobile station in each subframe or frame or superframe, or the location of the resource block allocated for the downlink station for downlink continuous transmission scheduling. The size and size are notified to the mobile station in each subframe or frame or superframe.  [5] The method according to claim 4, wherein a location and a size of a resource block allocated for a plurality of the mobile stations for downlink cross-group continuous transmission scheduling are performed in each subframe or frame or super The steps of uniformly notifying each mobile station in the frame specifically include: Notifying, at a predetermined location, an index and a bitmap corresponding to resource blocks respectively allocated to each of the plurality of mobile stations to the respective mobile stations, wherein the index refers to the mobile station having allocated resources The serial number in the process, the bitmap refers to the size of the resource block allocated for the mobile station.  [6] The method according to claim 2 or 3, wherein the method further comprises:  If the current mobile station needs to occupy multiple consecutive subframes or frames or superframe resources for continuous transmission scheduling, the current mobile station continuously schedules multiple subframes or frames or superframes for continuous uplink and downlink transmission to The current mobile station automatically switches between the multiple groups, and the current mobile station's initial scheduling subframe or frame or superframe is the last subframe or frame or superframe in which the last uplink or downlink scheduling is located. Decide.  [7] The method according to claim 1, 2 or 3, wherein the wireless communication system comprises: a split duplex TDD system or a half frequency division duplex H-FDD system.  [8] A device for implementing wireless transmission scheduling, comprising:  a scheduling conversion processing unit, configured to perform scheduling conversion of uplink transmission and downlink transmission of the mobile station; and a transmission scheduling unit, configured to perform, at the scheduling conversion processing unit, a scheduling conversion interval of uplink transmission and downlink transmission of the mobile station, and perform wireless Transmission scheduling of other mobile stations in the communication system [9] The apparatus according to claim 8, wherein the mobile station in the wireless communication system is divided into a plurality of groups, and the transmission scheduling unit is specifically configured to perform uplink transmission and downlink transmission of a certain group of mobile stations. The scheduling transition interval, which performs transmission scheduling for mobile stations of other groups.  [10] The device according to claim 9, wherein the device further comprises an access processing unit, configured to: when the mobile station accesses the network, instruct the mobile station to access the The mobile station specifies a group; or, is used to cause the mobile station to access a predetermined group.  [11] The device according to claim 8, 9 or 10, wherein the device further comprises: And a resource allocation processing unit, configured to allocate, to the mobile station that needs to perform cross-group continuous resource scheduling, a resource block that is provided to the transmission scheduling unit for performing uplink and downlink continuous transmission scheduling. a notification unit, configured to notify the mobile station of the location and size of the resource block allocated by the resource allocation processing unit for the mobile station, including: assigning, by the resource allocation processing unit, the mobile station And notifying the mobile station in a previous downlink scheduling, in the uplink downlink transmission scheduling, the consecutively allocated uplink subframe or frame or superframe number, and the resource block location and size in each subsequent uplink subframe or frame or superframe; And dividing the resource allocation processing unit into the mobile station The downlink subframe or frame or superframe number for subsequent successive allocation of downlink continuous transmission scheduling and the resource block position and size in each subsequent downlink subframe or frame or superframe are notified to the mobile station at a time, Or, the location and size of the resource block allocated by the resource allocation processing unit for performing downlink continuous transmission scheduling for the multiple mobile stations are uniformly notified to each mobile station in each subframe or frame or superframe, or The location and size of the resource block allocated by the resource allocation processing unit for the downlink continuous transmission scheduling allocated by the mobile station are notified to the mobile station in each subframe or frame or superframe.  [12] The apparatus according to claim 11, wherein the notification unit allocates a location and a size of a resource block for downlink continuous transmission scheduling allocated for a plurality of mobile stations in each subframe or frame or super The process of uniformly notifying the mobile stations in the frame specifically includes:  An index and a bitmap corresponding to the resource blocks respectively allocated to the respective mobile stations in the plurality of mobile stations are notified to the respective mobile stations, where the index refers to the sequence number of the mobile station in the resource allocation process. The bitmap refers to the size of a resource block allocated for the mobile station.  [13] The apparatus according to claim 9 or 10, wherein the scheduling conversion processing unit is further configured to perform continuous transmission scheduling on a resource that the current mobile station needs to occupy a plurality of consecutive subframes or frames or superframes.进行, continuously performing uplink and downlink transmission for the current mobile station to continuously schedule subframes or frames or superframes corresponding to multiple groups of mobile stations, 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 is determined by the last subframe in which the last uplink or downlink scheduling or the group in which the frame or superframe is located.  [14] A base station, comprising the apparatus for implementing wireless transmission scheduling according to any one of claims 8 to 13.