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Method and device for multiplexing multi-user time slot

A time slot multiplexing, multi-user technology, applied in the field of network communication, can solve the problems of difficult to guarantee communication quality, great interference, affecting the communication quality of users with poor channel quality, etc., to ensure service quality, improve voice capacity, The effect of ensuring communication quality

Inactive Publication Date: 2011-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Since the receiving end in the prior art uses the SAIC algorithm to process the signal, this method treats the signal of another user as an interference signal, and because the signals of the two users are sent with the same power, so in another When the channel quality of a user is good, the signal interferes a lot with the signal of the user with poor channel quality, which will definitely affect the communication quality of the user with poor channel quality, making the communication quality of the user with poor channel quality very difficult. guaranteed, and the method also needs to introduce a new pilot sequence

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  • Method and device for multiplexing multi-user time slot

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Embodiment 1

[0057] Embodiment 1: Embodiment 1 of the present invention provides a method for multi-user time slot multiplexing. This embodiment uses two users as an example to illustrate the specific implementation method.

[0058] The technical scenario of this embodiment is: the high-order modulation method is 8PSK, and the high-order modulation symbol can be 8PSK symbols. For the relevant description of 8PSK, please refer to the relevant regulations of GSM protocol 45.004; assuming that two users are user A and user B, And user A's required SNR for receiving signals is higher than user B's required SNR for receiving signals. The method as Figure 5 As shown, can include:

[0059] Step 51. Obtain the required SNRs of user A and user B that meet the requirements of the received signal.

[0060] Step 52: Allocate the bits of the 8PSK symbols to user A and user B according to the bit demodulation performance of the 8PSK symbols and the required SNR of the user A and user B to meet the re...

Embodiment 2

[0070] Embodiment 2: The specific implementation of the present invention provides another method for multi-user time slot multiplexing. This embodiment uses three users as an example to illustrate the specific implementation method.

[0071] The technical scenario of this embodiment is that the high-order modulation method is 16QAM, and the high-order modulation symbol can be a 16QAM symbol. Of course, in actual situations, the high-order modulation method can also be 32QAM. The implementation method is basically the same as that of 16QAM, and the difference is that 16QAM The symbol has 4 bits, while the 32QAM symbol has 5 bits. The 32QAM symbol can be allocated with more bits, and there are more ways to allocate bits. For the related description of 16QAM, please refer to the GSM protocol 45.004. It is stipulated that the demodulation performance of different bits in 16QAM symbols is similar to the demodulation performance of different bits in 8PSK symbols, that is, the order ...

Embodiment 3

[0081] Embodiment 3: The specific embodiment of the present invention also provides a method for multi-user time slot multiplexing. This embodiment uses two users as an example to illustrate the specific implementation method.

[0082] The technical scenario of this embodiment is that the high-order modulation method is 16QAM, and the high-order modulation symbols can be 16QAM symbols. Assuming that the two users are user A and user B, the order of the two users to meet the required SNR of the received signal is : user A, user B, the method is as follows Figure 7 shown, including:

[0083] Step 71. Obtain the required SNR of user A and user B to meet the received signal.

[0084] Step 72, assign a plurality of bits with high demodulation performance in the 16QAM symbol to users who satisfy the required SNR of the received signal among user A and user B, and allocate a plurality of bits with low demodulation performance in the 16QAM symbol Allocate to user A and user B who m...

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Abstract

The embodiment of the invention provides a method and a device for multiplexing a multi-user time slot, belonging to the communication field. The method comprises the steps of acquiring signal-noise ratio (SNR) of a plurality of users for satisfying the requirement of receiving signals, assigning bits of high-level modulation marks to the users according to the demodulation performance of bits ofthe high-lever modulation marks and the signal-noise ratio (SNR) of the users for satisfying the requirement of receiving signals, and mapping the signals of the users to the bits of the high-level modulation marks assigned to the users. The invention also provides the device for multiplexing a multi-user time slot, a method for receiving a multi-user signal and a receiving terminal device. The method and the device ensure the communication quality of a plurality of users and the service quality of the users and improve the sound capacity of a system without introducing a new pilot frequency sequence.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for multi-user time slot multiplexing. Background technique [0002] The Global System for Mobile Communications (GSM) is a time-division multiplexing system. Different users occupy different wireless channel resources, and only one user can access each time slot at the same time. With the continuous increase of the number of users, the wireless channel resources in the system are becoming less and less, and how to further improve the voice capacity of the system is also one of the current research hotspots. [0003] In order to solve the above-mentioned technical problems, the 3rd Generation Partnership Project (3GPP) organization set up multiple users to multiplex a Multi User Reuse One Slot (MUROS) project research group, the main research direction of the MUROS project research group is to enable multiple voice users to reuse the same wireless channel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/04H04B7/26
Inventor 刘青董朋朋余志坚
Owner HUAWEI TECH CO LTD
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