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Signaling representing method for frequency-hopping resource
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A technology of resource allocation information and frequency hopping, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of violating the original intention of single-carrier system design, users occupying sub-carriers, and mutual orthogonality cannot be guaranteed between users.
Active Publication Date: 2012-11-28
ZTE CORP
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In the case of random frequency hopping, if the frequency hopping pattern is not designed reasonably, users cannot guarantee mutual orthogonality and may collide, which will cause serious distortion and cause reception failure
[0005] When LTE uplink users have different transmission bandwidth requirements, frequency hopping in the usual way will cause users to occupy discontinuous subcarriers, which will increase the PAPR / CM of the system, thus violating the original design intention of the single-carrier system
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no. 1 example
[0045] refer to image 3 , the 600 subcarriers available to the system are divided into 2 segments evenly according to resource block units (each resource block contains 12 subcarriers), and each segment contains 25 resource blocks. The resource block numbers corresponding to the first segment are 0, 1, ..., 24, and the resource block numbers corresponding to the second segment are 25, 26, ..., 49; and each segment is numbered, and the first segment corresponds to the number 0 , the second paragraph corresponds to number 1.
[0046] Make the first segment of the first time slot correspond to the second segment of the second time slot, and the second segment of the first time slot correspond to the first segment of the second time slot.
[0047] Assuming that the user is allocated 3 resource blocks in the first section of the first time slot, and its sequence number is 5, 6 and 7 relative to the starting position of the first section, then the user is allocated in the second s...
no. 2 example
[0050] refer to Figure 4 , the 600 subcarriers available to the system are divided into 3 sections in units of resource blocks (each resource block contains 12 subcarriers). The resource block numbers corresponding to the first segment are 0, 1, ..., 17, the resource block numbers corresponding to the second segment are 18, 19, ..., 34, and the resource block numbers corresponding to the third segment are 35, 36 ,...,49; and number each paragraph, the first paragraph corresponds to number 0, the second paragraph corresponds to number 1, and the third paragraph corresponds to number 3.
[0051] The corresponding relationship between the segments is established, and the frequency hopping pattern between the segments is determined according to the cell ID. For example, assuming that the current cell ID is 1, the two-segment frequency hopping mode is: the first segment of the first time slot corresponds to the second segment of the second time slot, and the second segment of the...
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Abstract
The invention provides a signalling representation of frequency hopping resource, wherein the signalling is used for representing the frequency hopping resource according to the distribution information of the frequency hopping resource, which is obtained based on the follow steps: the step S102, dividing a plurality of sub-carriers usable for the system into n sections according to resource block as a unit, and numbering each section; the step S104, building coincidence relation between the sections; and the step S106, obtaining the distribution information of the frequency hopping resource according to the preset conditions. According to the invention, cost for representing the up frequency hopping resource is reduced, no broadcast channel is required to transmit the frequency hopping modes and select the signalling, meanwhile, flexibility of the up frequency hopping is increased.
Description
technical field [0001] The present invention relates to a mobile communication system, in particular to a signaling representation method of frequency hopping resources. Background technique [0002] In order to meet people's ever-growing needs for mobile communications, there are some basic requirements for the selection of uplink wireless transmission technologies: support for scalable bandwidth, moderate peak-to-average ratio (Peak Average Power Ration, referred to as PAPR) / third-order measurement (cubicmetric, CM for short), guaranteeing the orthogonality of uplink transmission, and the like. Single carrier frequency division multiple access (Single Carrier Frequency Division Multiple Address, referred to as SC-FDMA) of the single carrier transmission scheme has become the current LTE technology because of its low PAPR / CM and the ability to improve power efficiency and expand coverage. Basic candidate for uplink transmission. [0003] The single-carrier transmission sc...
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