Random access sequence transmission method and device
A technology of random access sequence and transmission method, applied in the field of random access sequence transmission method and device
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Embodiment 1
[0157] There are MTC UEs and non-MTC UEs in the wireless system, and the MTC UEs are divided into S1 sets according to predefined rules.
[0158] The predefined rule is: the coverage enhancement target value of the random access channel is divided into S1 value intervals, and the MTCUEs determine the set to which they belong according to the interval segment where the coverage enhancement target value of the random access channel needs to be supported.
[0159] The maximum coverage enhanced target value (Max Coverage Enhanced Target, Max CET) of PRACH is 15dB, and the MTC UEs are divided into 4 (S1=4) sets, also called 4 coverage enhanced levels (CoverageEnhanced Level, CEL), for example, CET of PRACH of MTC UEs of CEL0=0dB; 0dB of PRACH of MTC UEs of CEL1
[0160] The random access channel configuration message includes random access channel resource configuration information, ...
Embodiment 2
[0180] There are MTC UEs and non-MTC UEs in the wireless system.
[0181] First, the MTC UEs are divided into J sets according to the first predefined rule, and each set is defined as P(j), where 0≤j≤J-1, and J is a positive integer greater than or equal to 1.
[0182] The first predefined rule is:
[0183] Divide the number of times that the Secondary Synchronous Signal (SSS) needs to be repeatedly sent into J value intervals, and the MTC UE determines the set P(j) that it should belong to according to the interval segment where the SSS repetition times are located when the SSS is successfully decoded .
[0184] Then, when the MTC UEs successfully decode the SSS, the repetition times of the SSS is less than the subset P(j) of the predefined threshold value, and the MTC UEs in the above P(j) are divided into Q(j) according to the second predefined rule ) subsets, each subset defines P(j,q); Q(j) is the number of subsets that need to be divided into the set P(j), Q(j)≥1, 0≤q≤...
Embodiment 3
[0218] There are MTC UEs and non-MTC UEs in the wireless system, and the MTC UEs are divided into S1 sets according to predefined rules.
[0219] The predefined rule is: the coverage enhancement target value of the random access channel is divided into S1 value intervals, and the MTCUEs determine the set to which they belong according to the interval segment where the coverage enhancement target value of the random access channel needs to be supported.
[0220] The maximum coverage enhanced target (Max Coverage Enhanced Target, Max CET) of PRACH is 15dB, and the MTC UEs are divided into 4 (S1=4) sets, also called 4 coverage enhanced levels (Coverage Enhanced Level, CEL).
[0221] In this embodiment, MTC UEs can obtain at least one of the following information after decoding the random access channel resource configuration information:
[0222] PRACH resource configuration cycle;
[0223] In the configuration period, the configuration information of the physical resource block...
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