Multi-code-channel power matching method and device
A multi-code channel and code channel technology, applied in the field of communication, can solve problems such as difficult reception
Inactive Publication Date: 2015-05-13
ZTE CORP
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Problems solved by technology
[0006] The main purpose of the present invention is to provide a solution to the problem of power ratio and pulse shaping when a plurality of different spreading factors, modulation modes, and code channels of transmission power are combined in the uplink time slot of a TD-SCDMA / HSUPA terminal, so as to reduce the problem caused by two Multi-code channel power ratio method and device for receiving difficulties caused by excessive power difference between code channels
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[0104] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0105] refer to figure 2 , is a flowchart of an embodiment of a multi-code channel power ratio method in the present invention.
[0106] combine figure 2 , to further describe the embodiment of the present invention in detail. In this embodiment, there are five typical embodiments including uplink single code channel QPSK or 16QAM modulation mode, uplink dual code channel QPSK adjustment mode, uplink dual code channel 16QAM adjustment mode, and uplink dual code channel QPSK+16QAM adjustment mode.
[0107] Step S201, acquiring the configured power of each code channel;
[0108] Obtain the configuration power P of each code channel from the power control module 1 and P 2 .
[0109] Step S202, calculating the power difference according to the configured power of each code channel;
[0110] Use P 1 and P 2 Calc...
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The present invention discloses a method for power ratio allocation in multiple code channels, and the method includes the following steps: acquiring configuration power of each code channel; computing a power difference based on the configuration power of each code channel; computing a power ratio allocation factor for each code channel based on the range of the power difference and the weight factor corresponding to each code channel in the 3rd Generation Partner Project (3GPP) protocol; computing a total transmission power and / or generating a baseband burst signal based on the power ratio allocation factor for each code channel. A corresponding device is also provided by the present invention. The present invention provides a power ratio allocation solution based on various code channel combinations, enables a reasonable power allocation of each uplink code channel, reduces the inter-channel interference, and improves the demodulation performance of the transmission signal, thus benefiting the technical requirement of smoothly updating Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) terminal from 3GPP Release (R) 5 and R6 to R7. The technical solution is easy to implement and has good compatibility.
Description
technical field [0001] The present invention relates to the field of communication technology, in particular to a multi-code channel power ratio method and device. Background technique [0002] With the popularization of 3G communication network, three third-generation mobile communication technology 3G standards are applied at the same time; among them, in Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) network, in the terminal Uplink time slots can send up to two code channels at the same time. [0003] For TD-SCDMA terminal uplink multi-code channel combination, China Communications Industry Standard "2GHz TD-SCDMA Digital Cellular Mobile Communication Network High Speed Uplink Packet Access (High Speed Uplink Packet Access, HSUPA) Uu Interface Physical Layer Technical Requirements Part 4: Spread Spectrum Combining Uplink Physical Channels in Section 6.6.1 of "Modulation", describes the technical method in which two dedicated physical channels (Ded...
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IPC IPC(8): H04W52/24H04L27/22H04L27/34
CPCH04W52/16H04W52/346H04W72/0473H04W72/541
Inventor 洪江波
Owner ZTE CORP