Method and device for allocating temporary identifiers of cell wireless networks

Abstract

The invention provides a method and a device for allocating C-RNTIs (cell radio network temporary identifiers). According to the method and the device, when the C-RNTIs are allocated to UE (user equipment), the UE with carrier aggregation capacity can use the same C-RNTI in a main cell and an auxiliary cell, and requirements for serving of a certain amount of UE through a single cell are met, so that a method for planning a C-RNTI interval section is simplified, and the consumption of C-RNTI resources is reduced. The method comprises the following steps: judging whether the C-RNTIs meeting conditions exist according to a preset C-RNTI data section and the attribute information of the C-RNTIs in the C-RNTI data section maintained by the cell, wherein the C-RNTI data section is shared by carrier aggregation cells; allocating the C-RNTIs meeting the conditions to the UE.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for allocating temporary cell wireless network identifiers. Background technique [0002] Carrier Aggregation (Carrier Aggregation, CA) is a technology introduced by the 3rdGeneration Partner Project (3GPP) Release 10 (R10), as an enhanced system transmission introduced by LongTerm Evolution-Advanced (LTE-A) One of the important characteristics of bandwidth and uplink and downlink peak rates, carrier aggregation technology aggregates the carriers of multiple cells to form a larger bandwidth, thereby providing higher data transmission rates and effectively using spectrum resources. [0003] A cell radio network temporary identifier (Cell Radio Network Temporary Identifier, C-RNTI) is used when a user equipment (User Equipment, UE) accesses a cell, as an identifier of the UE in the access cell. The available data segment of C-RNTI defined by the 3GPP protocol ...

AI Technical Summary

Problems solved by technology

If it is considered that a cell as a primary cell can perform carrier aggregation with up to 4 secondary cells, and at the same time, this cell can also serve as a secondary cell of other primary cells, when statically allocating the C-RNTI interval between the primary cell and the secondary cell, The number of UEs supported by all cells needs to be considered. Every time a new cell is created, the total amount of C-RNTI resources allocated by the network side for the cell will increase. Therefore, the static planning method for such a C-RNTI section is more complicated and consumes a lot of resources. There are also more C-RNTI resources

At the same time, considering that the available data segment of C-RNTI needs to be allocated to Semi-Persistent Scheduling C-RNTI, Temporary C-RNTI, TPC-PUCCH-RNTI and TPC-PUSCH-RNTI, the available data segment of C-RNTI also needs to be extended for the protocol ( For example: the definition in the protocol may change later) to reserve the C-RNTI interval segment, therefore, the static allocation method adopted in the prior art consumes a lot of C-RNTI resources and has poor scalability;

[0007] If the number of C-RNTIs in the C-RNTI section divided for each cell is reduced, it may be limited when the cell subsequently accesses more UEs, that is, the number of UEs served by the cell increases

[0008] To sum up, when dividing the C-RNTI section for the cell that performs carrier aggregation and allocating the C-RNTI to the UE, the UE with the carrier aggregation capability uses the same C-RNTI in the primary cell and the secondary cell. , while satisfying the requirement of serving a certain number of UEs in a single cell, the method of dividing the C-RNTI section for the cell by static reservation in the prior art is relatively complicated, and this method consumes a lot of C-RNTI resources and has poor scalability

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