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Method and apparatus for signaling control information of uplink packet data service in mobile communication system

A technology for packet data services and mobile communication systems, applied in transmission systems, wireless communications, network traffic/resource management, etc., can solve problems such as poor uplink channel status

Active Publication Date: 2007-10-24
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conversely, if the difference between the transmit power and receive power is large, the uplink channel state is poor

Method used

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  • Method and apparatus for signaling control information of uplink packet data service in mobile communication system
  • Method and apparatus for signaling control information of uplink packet data service in mobile communication system
  • Method and apparatus for signaling control information of uplink packet data service in mobile communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] FIG. 5 is a block diagram illustrating a structure of a MAC-e PDU according to a first example implementation of an embodiment of the present invention. The MAC-e PDU 505 is data provided to the physical layer through the transport channel, and includes a MAC-e header 510 and a MAC-e payload 515 .

[0060] The MAC-e payload 515 of the MAC-e PDU 505 may contain at least one MAC-es PDU 550 , and the MAC-e header 510 includes multiplexing information related to the MAC-es PDU 550 . The MAC-e payload 515 may contain RLC PDUs created from multiple RLC entities, where RLC PDUs 560 created from the same RLC entity are contained close to each other in the MAC-e PDU 505 . That is, RLC PDU 560 and TSN 555 created from the same RLC entity are included in one MAC-es PDU 550 . TSN 555 is information for reordering of MAC-es PDU 550 . Additionally, the MAC-e payload 515 may contain a MAC-e Control Service Data Unit (MAC-e Control SDU) 540 containing MAC-e control information.

[0...

Embodiment 2

[0081]According to a first example implementation of an embodiment of the present invention, a multiplex identifier included in a MAC-e header of a MAC-e PDU is used to identify logical channels, reordering queues and RLC PDU sizes. Unlike the first embodiment, a second example implementation of an embodiment of the present invention uses a data description indicator (DDI) in order to identify MAC-d flows instead of reordering queues. Both include information about the size of the RLC PDU contained in the MAC-es PDU and about the RLC PDU From the viewpoint of information to be transferred to the upper layer, the combination of logical channel, reordering queue, and RLC PDU size is the same as the combination of logical channel, MAC-d flow, and RLC PDU size. A second example implementation of an embodiment of the present invention uses DDI as a logical identifier for identifying logical channels, MAC-d flows, and RLC PDU sizes in order to represent MAC-e control SDUs.

[0082]...

Embodiment 3

[0104] According to the first exemplary embodiment, a special DDI value indicating a MAC-e Control SDU is used for the DDI field, and an N field related to the DDI field is used to indicate the kind of control information inserted into the MAC-e Control SDU.

[0105]FIG. 12 is a block diagram illustrating a structure of a MAC-e PDU according to a third example implementation of an embodiment of the present invention. The MAC-e PDU 1240 includes a MAC-e header 1245 and a MAC-e payload 1250, and the MAC-e header 1245 includes k number of header parts 1205, 1210, and 1215. The header parts 1205 to 1215 correspond to components included in the MAC-e payload 1250 one by one. The MAC-e header part #1 corresponding to the first MAC-es PDU 1255 is configured with a DDI field 1220 (which indicates a logical channel, a MAC-d flow, and an RLC PDU size) and an N field 1225 indicating the number of RLC PDUs 1205. The MAC-e header part #2 1210 is configured with the DDI field and the N fi...

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Abstract

A method and apparatus for transmitting control information relating to an uplink packet data service from an UE to a Node B in a mobile communication system are provided. MAC-es protocol data units (PDUs) including uplink packet data and a control service data unit (SDU) including the control information are multiplexed and contained in a MAC-e PDU. In a header of the MAC-e PDU, a header part corresponding the control SDU contains a data description indicator (DDI) field set as a specific value representing that the control information is transmitted, and a header part corresponding to the MAC-es PDU contains a DDI field which represents a MAC-e flow and a logical channel relating to the uplink packet data, and a data size. Node B detects the control information from the control SDU based on the DDI field set as the specific value.

Description

technical field [0001] The present invention relates to a mobile communication system for transmitting packet data in uplink. More particularly, the present invention relates to a method and apparatus for efficiently signaling control information used to control uplink packet data traffic. Background technique [0002] The European-type third-generation mobile communication system based on Global System for Mobile Communications (GSM) and General Packet Radio Service (GPRS) and using Asynchronous Wideband Code Division Multiple Access (WCDMA) uses Enhanced Uplink Dedicated Channel (E-DCH or EUDCH) ). E-DCH is proposed to improve packet transfer performance in uplink communication of an asynchronous WCDMA communication system. [0003] A mobile communication system supporting E-DCH adopts a Node B-controlled scheduling scheme and a Hybrid Automatic Repeat Request (HARQ) scheme in order to maximize the efficiency of uplink transmission. According to a Node B-controlled sche...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06
CPCH04W28/06H04W52/14H04W72/21
Inventor 金成勋格特-简·范利肖特
Owner SAMSUNG ELECTRONICS CO LTD
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