Method and device for configuring uplink semi-persistent scheduling

A semi-persistent scheduling and terminal configuration technology, applied in the direction of signaling allocation, transmission path sub-channel allocation, digital transmission system, etc., can solve the problem of increased service delay, mismatched arrival time of service data packets, and relatively long waiting time, etc. question

Active Publication Date: 2017-09-12
DATANG MOBILE COMM EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a method for configuring uplink semi-persistent scheduling, which is used to solve the possible mismatch between the current uplink SPS and the arrival time of service data packets in the prior art, which makes it necessary to wait for a relatively long time after the arrival of service data packets, thereby The problem of increasing business delay

Method used

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  • Method and device for configuring uplink semi-persistent scheduling
  • Method and device for configuring uplink semi-persistent scheduling
  • Method and device for configuring uplink semi-persistent scheduling

Examples

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example 1

[0115] Example 1: The SPS configuration auxiliary information includes service type indication information. After obtaining the SPS configuration assistance information, the base station performs one or a combination of the following operations:

[0116] Determine the period and packet size of the SPS resource according to the service type.

[0117] Determine the physical layer parameters such as frequency domain resource block size and MCS level according to the data packet size.

[0118] The arrival pattern of the SPS service data expected by the terminal is calculated according to the receiving time of the message and the signaling transmission process carrying the message, so as to determine the time domain starting position of the SPS resource.

[0119] Allocate the SPS C-RNTI for the SPS service.

example 2

[0120] Example 2: The SPS configuration auxiliary information includes the expected uplink SPS resource time domain start position, period and data packet size indication.

[0121] After obtaining the SPS configuration assistance information, the base station performs one or a combination of the following operations:

[0122] Determine the period of the SPS according to the desired period.

[0123] Determine the physical layer parameters such as frequency domain resource block size and MCS level according to the data packet size.

[0124] The time-domain start position of the SPS resource is determined according to the time-domain start position of the uplink SPS resource expected by the terminal.

[0125] Allocate the SPS C-RNTI for the SPS service.

example 3

[0126] Example 3: The SPS configuration assistance information includes the desired uplink SPS resource time domain starting position and service type indication information.

[0127] After obtaining the SPS configuration assistance information, the base station performs one or a combination of the following operations:

[0128] Determine the period and packet size of the SPS resource according to the service type.

[0129] Determine the physical layer parameters such as frequency domain resource block size and MCS level according to the data packet size.

[0130] The time-domain start position of the SPS resource is determined according to the time-domain start position of the uplink SPS resource expected by the terminal.

[0131] Allocate the SPS C-RNTI for the SPS service.

[0132] If the SPS configuration auxiliary information is SPS activation indication information, the terminal determines the SPS configuration auxiliary information after meeting the following trigger co...

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Abstract

The embodiment of the invention relates to the technical field of wireless communication, and particularly relates to a method and device for configuring uplink semi-persistent scheduling for solving the problem that the arrival times of the existing SPS and a service data packet may be not matched, therefore the service data packet needs to wait for a relatively long time after arrival, thereby prolonging the service delay. The method provided by the embodiment of the invention comprises the following steps: a terminal sends SPS auxiliary configuration information to a network side device, so that the network side device configures uplink SPS information for the terminal according to the received SPS auxiliary configuration information. As the terminal can send the SPS auxiliary configuration information to the network side device, so that the network side device can refer to the SPS auxiliary configuration information when performing uplink SPS configuration, thereby reducing the possibility that the arrival times of the uplink SPS and the service data packet are not matched, shortening the waiting time of the service data packet after arrival and reducing the service delay.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for configuring uplink semi-persistent scheduling. Background technique [0002] In order to reduce the overhead of control signaling, the LTE (Long Term Evolution, Long Term Evolution) system introduces SPS (Semi-Persistent Scheduling, Semi-Persistent Scheduling) for services with substantially the same data packet size and relatively regular arrival time intervals. [0003] Currently, the LTE system supports two scheduling methods: dynamic scheduling and SPS. Dynamic scheduling is suitable for services with random arrival times of service data or irregular packet sizes; while SPS is mainly suitable for services with periodic arrival of service data and relatively fixed packet sizes, such as voice services. For the downlink SPS, the base station can know the downlink arrival time of the service data packets, so that it can configure th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04H04L5/00H04L12/26
CPCH04L5/0053H04L43/0852H04L43/16H04W72/21H04W72/02H04W72/20H04W72/04
Inventor 赵亚利许芳丽
Owner DATANG MOBILE COMM EQUIP CO LTD
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