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Sending and receiving method of random access signal, network equipment and user equipment

A random access signal and network equipment technology, applied in wireless communication, electrical components, etc., can solve the problems of long occupation time, high collision probability, limited number of leading sequences, etc., and achieve the effect of reducing the probability of collision

Pending Publication Date: 2018-07-13
HUAWEI TECH CO LTD
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  • Description
  • Claims
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Problems solved by technology

[0006] It can be seen from the above that in the existing LTE standard, the time taken for the random access preamble is too long, and the number of sequences that can be used for the random access preamble is limited, so it is easy for multiple UEs to use the same sequence for random access at the same time. , leading to a relatively high probability of conflict

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  • Sending and receiving method of random access signal, network equipment and user equipment
  • Sending and receiving method of random access signal, network equipment and user equipment
  • Sending and receiving method of random access signal, network equipment and user equipment

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Embodiment Construction

[0064] The technical solutions of the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

[0065] The technical solutions of the embodiments of the present invention described below are applied to communication systems. The communication system may include one or more network devices, and one or more user equipment (User Equipment, UE) communicating with each network device. figure 2 is an example of the communication system, figure 2 The illustrated communication system includes a network device and a plurality of UEs communicating with it.

[0066] The network device may be any device that can directly communicate with the UE and is used to control the UE's access to the communication network, for example, a base station, a relay station, or an access point. The base station can be a BTS (Base Transceiver Station, Base Transceiver Station), WCDMA (Wideband Code Division Multiple Access,...

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Abstract

The embodiment of the invention provides a method for sending a random access signal, and user equipment. The method comprises the following steps: user equipment UE determines a resource pattern corresponding to random access pre-leading in the random access signal, wherein the resource pattern specifies the resource occupied by the random access pre-leading, and the resource comprises at least one of frequency resource, time resource and sequence resource; the UE generates the random access signal according to the resource pattern; and the UE sends the random access signal to the network equipment. The UE in the embodiment of the invention has lots of selections when generating the random access pre-leading, so that the collision occurrence probability of different UE in the random access in the same cell can be reduced.

Description

technical field [0001] The present invention relates to the field of wireless communication, in particular to a method for sending and receiving random access signals, network equipment and user equipment. Background technique [0002] In a wireless cellular communication system, random access is a key step in establishing an uplink communication connection between a UE (User Equipment, user equipment) and a base station. In the process of establishing an uplink communication connection between the UE and the base station, downlink synchronization is firstly obtained. The UE obtains system information through a downlink public channel, such as bandwidth, frame structure parameters, system frame number, and random access channel (RACH, Random Access Channel) information. In an LTE (Long Term Evolution, long term evolution) network, the base station notifies the UE of RACH information through SIB2 (System Information Block 2, system information block 2). Then, the UE sends a...

Claims

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Application Information

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IPC IPC(8): H04W74/08
CPCH04W74/085H04W74/08
Inventor 颜矛陈磊
Owner HUAWEI TECH CO LTD
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