Prescheduling method and equipment
A pre-scheduling, unified technology, applied in electrical components, wireless communication, etc., can solve the problems of resource conflict, cooperation failure, reduce the success rate of cooperation, etc., to achieve the effect of improving the success rate, reducing the probability of conflict, and improving throughput
Active Publication Date: 2016-11-23
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0008] Each cell sends a cooperation request to its cooperating cell at the same time, which may easily cause conflicts in the resources requested for cooperation, resulting in failure to cooperate, thereby reducing the success rate of cooperation, which is not conducive to the improvement of edge user performance
[0009] by image 3 As an example, assume that the cooperating cell of cell 1 is cell 2, and cell 1 pre-allocates PRB1 to PRB5 (PRB is the English abbreviation of physical resource block, that is, physical resource block) for a CoMPUE in subframe 0 and subframe 5 as Coordination resources. Cell 2 also pre-allocates PRB1 to PRB5 as coordination resources in subframe 0 and subframe 5 for a certain CoMP UE. After cell 2 receives the cooperation request from cell 1, it Due to the delay of transmission network, after arriving at cell 2, cell 2 finds that PRB1 to PRB5 have been allocated, that is, a request for cooperation resource conflict occurs, and cell 2 cannot cooperate with cell 1 for cooperative transmission this time, resulting in a cooperation failure
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[0028] Aiming at the CoMP transmission technology, the embodiment of the present invention proposes a pre-scheduling method, which can improve the cooperation success rate among multiple cells, thereby further improving cell edge throughput.
[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . 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.
[0030] The following are some of the embodiments of the present invention, which are intended to provide a basic understanding of the present invention, but are not intended to identify the key or dec...
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The invention discloses a prescheduling method and equipment. The prescheduling method comprises the steps that cell group information is acquired, wherein the cells of the whole network are divided into N groups, and N is an integer greater than 1; the prescheduling time of multi-point coordinated transmission of the cells is determined according to the cell group information, wherein the same cell group has the same prescheduling time, the time interval between the prescheduling time of the (n+1)th cell group and the prescheduling time of the nth cell group is first time migration, and 1<=n<=N; and multi-point coordinated transmission prescheduling of the cells is performed at the determined prescheduling time of multi-point coordinated transmission of the cells. The success rate of multi-point coordinated transmission can be enhanced so that the edge throughput of the cells can be enhanced.
Description
technical field [0001] The invention relates to the field of wireless communication, in particular to a pre-scheduling method and equipment applied to a distributed coordinated multi-point transmission system. Background technique [0002] Coordinated Multi-Point Transmission (CoMP transmission, Coordinated Multi-PointTransmission / Reception) technology is an important technology introduced in LTE-A (LTE evolution, LTE is the English abbreviation of Long Term Evolution, that is, long-term evolution). Joint scheduling or cooperative transmission between cells can improve the signal quality received by users, reduce interference between cells, improve the coverage of high data rate transmission, improve cell edge throughput, and increase system average throughput. [0003] The CoMP transmission technology mainly includes transmission schemes such as JT (Joint Transmission) and CS (Coordinated Scheduling) in the downlink direction, and mainly includes JR (Joint Reception, joint ...
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IPC IPC(8): H04W72/12
Inventor 刘阳
Owner DATANG MOBILE COMM EQUIP CO LTD