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Improved uplink scheduling in a cellular system

A cellular communication system and link technology, applied in the field of uplink scheduling

Active Publication Date: 2013-08-28
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is a problem since the user would then have to transmit on two different frequencies during the same time interval, which most users cannot do, and which would require the same user to have two separate transmitters

Method used

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  • Improved uplink scheduling in a cellular system
  • Improved uplink scheduling in a cellular system
  • Improved uplink scheduling in a cellular system

Examples

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Embodiment Construction

[0017] figure 1 A general view of a portion of a system 100 to which the present invention may be applied is shown. The present invention will be described below using terms from the TD SCDMA HSUPA technology, but it should be noted that this is only for the convenience of the reader to understand the present invention, and should not be construed as limiting the scope of protection sought by the present invention.

[0018] now go to figure 1 , shows a TD SCDMA cell 110 using HSUPA technology. There is a control node 130 (NodeB) of the cell 110 and the cell is shown as having one user 120 (UE, user equipment). Naturally, the number of users per cell and the number of cells in the system can vary, figure 1 The numbers used in are examples only.

[0019] figure 1 Also shown is a node RNC 140, which is a node in the system, one of whose roles are to perform radio network control over multiple cells in the system 100. It should be noted that there can be more than one RNC in...

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Abstract

A method (600) for a cellular system (100) with a controlling node (130) for a cell and a node (140) for radio network control. More than one uplink carrier frequency (605) is used in a cell (110) and the cell has an uplink channel with two types of transmission resources (610), scheduled and non-scheduled. The controlling node (130) of a cell is given control (615) over the scheduled transmission resources of the users (120), and the node (140) for radio network control is given initial control (620) over the non-scheduled transmission resources of the users. The controlling node (130) alone or together with a user (120) is subsequently (630) given control of the user's (120) non-scheduled transmission resources, to ensure that the user's non- scheduled uplink transmissions use the same uplink carrier frequency as the user's scheduled transmissions.

Description

technical field [0001] The present invention discloses a method and apparatus for improved uplink scheduling in a cellular transmission system. Background technique [0002] In certain cellular communication systems, there are channels that include both scheduled and unscheduled transmissions. An example of such a system is the TD-SCDMA HSUPA system (Time Division Synchronous Code Division Multiple Access High Speed ​​Uplink Access), where an example of the mentioned type of channel is the E-PUCCH channel (Enhanced Physical Uplink Control Channel) ). [0003] In a cell in a TD SCDMA system, the resources for scheduled transmissions in the E-PUCCH are controlled by the cell's control node NodeB, while the resources for unscheduled transmissions in the cell are controlled by the nodes used for radio network control (called in TD SCDMA). controlled by the RNC). The resources in question may be, for example, time slots, channelization codes and periods. [0004] In the case ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/12H04W72/04H04W72/23
CPCH04W74/04H04W74/02H04W74/08H04W84/042H04W72/02H04W72/04H04W72/042H04W72/23
Inventor 毛杰朱怀松乜京月
Owner TELEFON AB LM ERICSSON (PUBL)