Method and device for transmitting information
A technology for transmitting information and sending information, which is applied in the field of information transmission and can solve problems such as channel hopping without repetition
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Embodiment 1
[0274] The method provided by the embodiment of the present invention can be used in all scenarios where multiple subchannels exist.
[0275] In the embodiment of the present invention, the system bandwidth is divided into a number of narrowbands according to a preset or eNB notified rule. The system bandwidth division rules and notification signaling are not limited in the present invention. For example, the system bandwidth is divided into a narrowband for every 6 PRBs starting from the lowest PRB index. Information or channels are transmitted in narrowband frequency hopping according to a designated pattern. The information may be at least one of the following: SIB, paging message, downlink control information for scheduling paging messages, random access preamble, RAR, downlink control information for scheduling RAR, message three, downlink control information, downlink data, uplink Control information, uplink data. The channel may be at least one of the following: downlin...
Embodiment 2
[0352] Assuming that there are N frequency hopping narrowbands of the information or channel, the indexes of the N narrowbands are 0, 1,.... N-1. For example, if the information refers to SIB, then the SIB of one cell is sent by frequency hopping on the N narrowbands. For different cells, the N may be different. Further, the N may be determined by at least one of the cell identity and the system bandwidth. For example, when the system bandwidth is greater than or equal to 10MHz, N=4, otherwise N=2. The definition of frequency hopping narrowband is also applicable to other embodiments. Be applicable. For the above N narrowbands used for the information or channel frequency hopping, for a certain cell, let the narrowband index corresponding to the information or channel frequency hopping position be H 0 ,H 1 ,..., or can also be called a frequency hopping sequence, for the kth frequency hopping position H k Determined by the following formula:
[0353] H k =Y k mod N
[0354] Y ...
Embodiment 3
[0373] Assuming the same as in the second embodiment, for the above N frequency hopping narrowbands used for the information or channel frequency hopping, for a certain cell, set the radio frame n rf Subframe n sf (Such as n rf ∈{0,1...1, n sf ∈{0,4,5,9} or ∈{0,1,5,6}), where n rf Indicates the wireless frame index, n sf Represents the subframe index, and the narrowband index corresponding to the information or channel hopping position is Determined by the following formula:
[0374]
[0375] Among them, c(i) is a predefined pseudo-random sequence, which uses Initialization (there are many possibilities for initialization, such as once every 1024 radio frames, and once every time the network configuration is sent. Or you can use cell identification and / or physical radio frame index and / or physical subframe index for initialization .such as
[0376] Example of pseudo-random sequence: pseudo-random sequence c(n) is generated by 31-long Gold sequence:
[0377] c(n)=(x 1 (n+N C )+x 2 ...
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