Base station and method for storing system information code stream

Abstract

The invention provides a base station and a method for storing a system information code stream. The method comprises the steps that the base station reads configuration information to be broadcast and encodes and stores system information (SI); the base station comprises an encoding module, a filling module and a storage module, wherein the encoding module is used for encoding the system information and transmitting the encoded code stream to the filling module; the filling module is used for storing the received code stream to the storage module; the storage module is used for storing each code stream; the filling module stores each SI in the stream form; and the stored SI comprises two parts, namely length of SI and SI code stream. The method comprises the step that the base station stores each SI in the form of code stream; and the stored SI comprises the two parts, namely the length of SI and the SI code stream. By using the base station and the method, the system information is stored in the form of code stream, so that the memory is greatly saved, and each SI is stored in the same storage region to save the storage space to the greatest extent.

Description

technical field [0001] The present invention relates to the field of LTE (Long Term Evolution, Long Term Evolution) communication system, in particular to a base station and method for storing system information code streams. Background technique [0002] The system information mainly provides cell parameter information of the access network system, and the system information is notified to UE (user equipment, user equipment) in the form of broadcast. E-UTRAN (Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network) system information is broadcast to the UE in the cell, so that the UE can obtain sufficient access information through the received system information broadcast, which is convenient for UE and E-UTRAN UTRAN establishes the wireless connection. The UE obtains the system information sent by E-UTRAN such as figure 1 shown. [0003] The system information is divided ...

AI Technical Summary

Problems solved by technology

If the system information changes, but the valueTag is not modified when the broadcast information is sent, the UE cannot receive the SI information

If the system information does not change, but the ValueTag is modified when the broadcast information is sent, the UE will receive the broadcast, causing the UE to consume more power

The valueTag parameter is a sign of whether the SI has changed, but if the system information is stored in the SIB structure, the process of judging whether the SI has changed is complicated and inefficient

[0012] 3. The processing of pointer cells in the SIB structure is extremely inconvenient, especially the pointer list. Even if memory is allocated for the pointer structure, it is difficult to release. It is necessary to distinguish between release and non-release, which may easily cause memory leaks

When it comes to judging whether the system information has been updated, it is necessary to compare whether the SIB cell has changed, because the existence of pointer members makes the design difficult to implement

[0013] 4. The process of broadcasting system information is simple, but it is quite cumbersome to implement, not easy to maintain, and the processing efficiency is relatively low

[0014] To sum up, if the system information is stored in the SIB structure, the above-mentioned problems are difficult to solve, and it is a waste of memory

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