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Method and system for synchronous control in semi-persistent scheduling mode

A semi-persistent scheduling and synchronization control technology, applied in the field of communication, can solve the problem of out-of-synchronization of UE sending uplink channel

Inactive Publication Date: 2015-08-12
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] In view of this, the main purpose of the present invention is to provide a method and system for synchronous control in the semi-persistent scheduling mode to solve the problem of out-of-synchronization of the UE sending uplink channels caused by using the same synchronization parameters for different SPS resources in the SPS mode. question

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  • Method and system for synchronous control in semi-persistent scheduling mode
  • Method and system for synchronous control in semi-persistent scheduling mode
  • Method and system for synchronous control in semi-persistent scheduling mode

Examples

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Embodiment 1

[0078] Embodiment one, as figure 2 Shown is the synchronization control process for uplink SPS resources, including the following steps:

[0079] In step 201, the RNC configures a TX Pattern list including synchronization parameters to the base station through an NBAP message.

[0080] The format of the cells included in the TX Pattern list is shown in Table 1, and will not be repeated here. The NBAP message may be: a radio link establishment, or radio link reconfiguration, or radio link addition, or radio link modification message.

[0081] In step 202, the base station selects a Tx Pattern for initial transmission (referred to as the initial Tx Pattern) from the Tx Pattern list, and returns the index of the initial Tx Pattern to the RNC through an NBAP response message.

[0082] The base station saves the Tx Pattern list after receiving it, selects a Tx Pattern for initial transmission from the Tx Pattern list, and returns an NBAP response message to the RNC, which contai...

Embodiment 2

[0101] Embodiment two, image 3 Shown is the synchronization control process for downlink SPS resources, including the following steps:

[0102] In step 301, the RNC configures the RX Pattern list to the base station through an NBAP message.

[0103] The cell format included in the RX Pattern list is shown in Table 1, and will not be repeated here. The NBAP message may be: a radio link establishment, or radio link reconfiguration, or radio link addition, or radio link modification message.

[0104] In step 302, the base station selects an Rx Pattern for initial transmission (referred to as the initial Rx Pattern) from the Rx Pattern list, and returns the index of the initial Rx Pattern to the RNC through an NBAP response message.

[0105] The base station saves the Rx Pattern list after receiving it, selects an Rx Pattern for initial transmission from the Rx Pattern list, and returns an NBAP response message to the RNC, which contains the index of the RX pattern used for ini...

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Abstract

A method and system for controlling synchronization in the Semi-Persistent Scheduling (SPS) mode are disclosed in the present invention. The method includes that: a network side sets synchronization parameters corresponding to SPS resources; a Radio Network Controller (RNC) allocates the SPS resources and the corresponding synchronization parameters to a base station and a terminal by utilizing an SPS resource pattern list, wherein the SPS resource pattern list includes the SPS resources and the corresponding synchronization parameters; the terminal determines currently-used SPS resources and corresponding synchronization parameters, and synchronously adjusts uplink channels. The present invention can solve the problem that uplink channels are desynchronized due to the fact that the same synchronization parameters are utilized by a User Equipment (UE) while SPS resources are different (especially, the repetition periods are different).

Description

technical field [0001] The invention relates to the communication field, in particular to a method and system for synchronous control in a semi-persistent scheduling (SPS) mode. Background technique [0002] Semi-Persistent Scheduling (Semi-Persistent Scheduling) is an important feature of High Speed ​​Downlink Packet Access (HSPA+), which is mainly applicable to IP-type real-time services, such as VoIP (Voice over Internet Protocol), Hypertext Transfer Protocol (HTTP, Hyper Text Transfer Protocol) and other real-time interactive services. VoIP services have the characteristics of predictable data packet size, fixed period, small interval, and high delay requirements. If you continue to use the original method to schedule VoIP services, the calculation will be scheduled every 20ms. High-speed shared control channels (HS-SCCH, High The overhead of -Speed ​​Shared Control Channel) accounts for 25% of the total overhead (referring to the overhead occupied by the control channe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W72/12
CPCH04W56/00H04W72/1268
Inventor 黄春黄河
Owner ZTE CORP
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