Uplink dispatching request method, user equipment, and base station equipment

A technology for scheduling requests and base stations, which is applied in wireless communication, electrical components, etc., and can solve problems such as many steps, low efficiency, and impact on user experience.

Active Publication Date: 2018-07-17
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The contention-based random access process includes four steps: sending a preamble sequence, receiving a random access response, sending a message three (Msg3) and receiving conflict resolution. The process for the UE to obtain uplink scheduling request resources through contention-based random access is cumbersome , and there are many steps and low efficiency, which greatly increases the communication delay, affects the user experience, and does not meet the requirements of the corresponding indicators of 5G technology

Method used

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  • Uplink dispatching request method, user equipment, and base station equipment
  • Uplink dispatching request method, user equipment, and base station equipment
  • Uplink dispatching request method, user equipment, and base station equipment

Examples

Experimental program
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Embodiment 1

[0109] see Figure 5 , the following describes the process of the uplink scheduling request method in this specific embodiment and the uplink scheduling request response method in this specific embodiment cooperate with each other to complete an uplink scheduling request with two communication interaction steps. Figure 6 It is a schematic diagram of a UE side uplink scheduling request process in this embodiment.

[0110] Step 301, UE determines uplink scheduling request channel information.

[0111] The UE selects uplink scheduling request channel information for sending the uplink scheduling request from the scheduling request resources. Scheduling request resources include:

[0112] (1) A set of time-frequency resources for scheduling request signals. The scheduling request signal time-frequency resource is a time-frequency resource used for transmitting the uplink scheduling request signal. A part or all of the time-frequency resource set of the scheduling request sign...

Embodiment 2

[0163] This embodiment introduces another uplink scheduling request process with two communication interaction steps. Figure 9 It is a schematic diagram of a UE side uplink scheduling request process in this embodiment. The main difference between this embodiment and Embodiment 1 is that in Embodiment 1, the base station and UE use C-RNTI to scramble and descramble the uplink scheduling request response signal, while in this embodiment, the base station and UE use RSR-RNTI (scheduling Requesting a wireless network temporary identification, which belongs to a kind of UE identification information) performs scrambling and descrambling on the uplink scheduling request response signal. The content of the same part as that of Embodiment 1 in this embodiment will not be repeated.

[0164] Step 401, UE determines uplink scheduling request channel information.

[0165] In addition to the content described in step 301, the scheduling request resource also includes the initial_value,...

Embodiment 3

[0181] This embodiment introduces another uplink scheduling request process with two communication interaction steps. Figure 10 It is a schematic diagram of a UE side uplink scheduling request process in this embodiment. The content of the same part as that of Embodiment 1 in this embodiment will not be repeated. The main difference between this embodiment and Embodiment 1 is that in this embodiment, the uplink scheduling request response signal sent by the base station includes not only data uplink transmission resource grant, but also timing advance information estimated by the base station. Figure 11 It is a comparison between when the uplink scheduling request response signal includes timing advance information and when it does not include timing advance information. The timing advance information may be in the form of a new timing advance value TA_new, or in the form of a timing advance adjustment value TA_adjust.

[0182] When the UE detects the uplink scheduling req...

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Abstract

The invention discloses an uplink dispatching request response method, user equipment and base station equipment. The uplink dispatching request method comprises the following steps: confirming channel information of the uplink dispatching request; sending an uplink dispatching request signal generated according to the channel information of the uplink dispatching request, wherein the uplink dispatching request signal contains UE identification information; and receiving an uplink scheduling request response signal fed back by the base station, and obtaining an uplink transmission resource license in the uplink scheduling request response signal using the UE identification information. Compared with the prior art, the invention optimizes the step of completing the uplink dispatching request using the random access process based on competition in view of the characteristics of the RRC connection state, which uses only two communication interaction steps to complete the uplink schedulingrequest process; therefore, the process is simple, the communication efficiency is high, and the service delay is significantly reduced.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more specifically, to a method for uplink scheduling request, user equipment, and base station equipment. Background technique [0002] With the rapid development of the information industry, the growing demand from the mobile Internet and the Internet of Things has brought unprecedented challenges to future mobile communication technologies. At present, the communication industry and academia are conducting extensive research on 5G (fifth-generation mobile communication system) technology, aiming to solve the problems of significant improvement in system throughput, consistency of user experience, scalability to support the Internet of Things, delay, energy efficiency, and cost. , network flexibility, emerging services, and flexible spectrum utilization. [0003] The random access (Random Access, RA) process is an important step in establishing a communication link be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W74/08
CPCH04W72/1268H04W74/0833H04W72/23H04W72/044
Inventor 熊琦喻斌钱辰付景兴张英杰苏笛
Owner BEIJING SAMSUNG TELECOM R&D CENT
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