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Rach coverage enhancement method and related equipment

A coverage enhancement and terminal equipment technology, applied in the field of communication, can solve the problems of lower resource utilization, poor coverage performance, and high demodulation threshold SINR, and achieve the effects of improving coding redundancy, coverage enhancement, and coverage performance

Inactive Publication Date: 2018-01-02
SHANGHAI HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Repeated RACH transmission consumes a lot of time resources because of the guard interval, which reduces resource utilization. Fewer coded information bits lead to a higher demodulation threshold SINR for correctly receiving valid information before coding, and poor coverage performance.

Method used

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  • Rach coverage enhancement method and related equipment
  • Rach coverage enhancement method and related equipment
  • Rach coverage enhancement method and related equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Please refer to figure 2 , an embodiment of the present invention provides a method for enhancing RACH coverage, which may include:

[0044] 110. Map the channel-coded channel request message into an extended access burst EAB structure;

[0045] 120. Send a channel request message in the random access channel RACH according to the EAB structure;

[0046] Wherein, the EAB structure occupies at least two consecutive time slots, and the EAB structure only includes one guard period (Guard period, GP) part, and the number of bits contained in the GP part is not less than only one time slot. The number of bits contained in the GP part in the access burst (AB) structure of the slot, the number of bits contained in the information bit part in the EAB structure is M, and M is greater than 2N, and N is in the AB structure that only occupies one time slot The maximum number of bits contained in the information bit part of .

[0047] It can be seen from the above that the embod...

Embodiment 2

[0120] Please refer to Figure 6 , the embodiment of the present invention also provides another method for enhancing RACH coverage.

[0121] Different from Embodiment 1, which uses a terminal device as an execution subject, in this embodiment, a network side device is used as an execution subject for description. Methods can include:

[0122] 610. Receive the channel request message sent according to the extended access burst EAB structure on the random access channel RACH;

[0123] The EAB structure occupies at least two consecutive time slots, the EAB structure only contains one guard interval GP part, and the number of bits contained in the GP part is not less than the access burst AB that only occupies one time slot The number of bits contained in the GP part of the structure, the number of bits contained in the information bit part of the EAB structure is M, M is greater than 2N, and N is the maximum number of bits contained in the information bit part of the AB struct...

Embodiment 3

[0135] Please refer to Figure 7a , an embodiment of the present invention provides a terminal device, which may include:

[0136] A mapping module 710, configured to map the channel-coded channel request message into an extended access burst EAB structure;

[0137] A sending module 720, configured to send the channel request message in a random access channel RACH according to the EAB structure;

[0138] Wherein, the EAB structure occupies at least two consecutive time slots, and the EAB structure only includes one guard interval GP part, and the number of bits contained in the GP part is no less than that of an access burst that only occupies one time slot. Send the number of bits contained in the GP part in the AB structure, the number of bits contained in the information bit part in the EAB structure is M, M is greater than 2N, and N is the most contained in the information bit part in the AB structure that only occupies one time slot number of bits.

[0139] Please ref...

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Abstract

The present invention discloses a method for enhancing RACH coverage and associated equipment, in order to reduce the waste of time resources, improve the utilization of resources and improve the performance of the RACH coverage.In some possible embodiments of the present invention, the method comprising: channel coding the channel request message is mapped to an extended access burst EAB configuration, the EAB structures occupy at least two consecutive time slots, the EAB structure contains only a part of a guard interval GP, GP and the number of bits included in the portion occupies only one slot is not less than the number of bits of an access burst AB GP structure included in the portion, of the information structure EAB bits to be included as part of M, M is greater than 2N, N is a number of bits of the information bit portion occupies only one slot of the AB structure comprising up; transmitting the random access channel RACH channel structure in accordance with the EAB request message.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for enhancing RACH coverage and related equipment. Background technique [0002] Existing wireless cellular communication networks, such as Global System for Mobile communication (GSM), Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), are mainly aimed at H2H ( Human to Human, human-to-human) applications, the wireless environment mainly considered is outdoor or general indoor scene. [0003] The 3GPP (The 3rd Generation Partnership Project, 3rd Generation Partnership Project) standard has begun to consider supporting M2M (Machine to Machine, machine-to-machine) communication through wireless cellular networks, that is, Machine Type Communication (Machine Type Communication, MTC ). Because the terminal equipment of some M2M applications, that is, the MTC device (device) is placed in basements, tunnels, valleys, forests and o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04L1/00
CPCH04W74/004H04W74/0833H04W74/002H04L1/00H04W74/08
Inventor 肖洁华
Owner SHANGHAI HUAWEI TECH CO LTD
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