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Inter-channel timing method in time division code division multi-address system

A time division code division multiple access, inter-channel technology, applied in the direction of communication between multiple stations, transmission systems, radio transmission systems, etc., can solve problems such as being unsuitable for TD-SCDMA, and achieve the effect of reducing power consumption

Inactive Publication Date: 2011-08-24
ZTE CORP
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Problems solved by technology

[0007] Since TD-SCDMA adopts low code rate technology and introduces synchronization technology at the same time, the above timing method is not suitable for TD-SCDMA system

Method used

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  • Inter-channel timing method in time division code division multi-address system
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  • Inter-channel timing method in time division code division multi-address system

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0033] The present invention provides a timing relationship between each channel of the HSUPA technology in a Time Division Code Division Multiple Access system. The HSUPA system includes channels as follows:

[0034] The physical layer of the HSUPA system introduces the uplink E-PUCH physical channel, which is used for the UE to transmit the E-DCH type CCTrCH to the NodeB. E-RUCCH (E-DCH Random Access Uplink Control Channel) is used to transmit information related to auxiliary scheduling. The E-RUCCH can be mapped to random access physical channel resources, and can share some resources with the existing PRACH. The downlink signaling channels E-AGCH and E-HICH are newly introduced. E-AGCH is used for NodeB to transmit authorization information to UE; E-HICH is used for carrying uplink E-DCH HARQ indication information. The relationship flow of these channels ...

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Abstract

The utility model discloses a timing method among the channels in a time and code division multiple access system, aiming at the problems that because the UE of the prior TD-CDMA timing method searches the E-AGCH frequently, the power consumption of UE is too large, which is not suitable for the TD-SCDMA system. For solving the problem, the timing method among the channels in the time and code division multiple access system comprises the following steps: (1) the dispatching request sent to a base station by a piece of subscriber equipment is completed; (2) a down E-AGCH channel between the user equipment and the base station is found after the first minimum time interval. The utility model solves the timing relationship among the channels of HSUPA technique in the time division CDMA system, which is adapted to the frame structure of TD-SCDMA, prevents the UE from searching the E-AGCH frequently, and reduces the power consumption of the UE. As a result, the resource allocation is moreflexible, and the resources are fully used.

Description

technical field [0001] The invention relates to a wireless communication system, in particular to the timing relationship between channels in the time division code division multiple access wireless communication system. Background technique [0002] In the third-generation mobile communication system, in order to provide higher-speed uplink packet services and improve spectrum utilization efficiency, 3GPP (3rd Generation Partnership Project) introduced High-Speed ​​Uplink Packet Access (HSUPA) into the specifications of WCDMA and TD-CDMA systems. : High Speed ​​Uplink Packet Access) feature, that is, the uplink enhanced feature. [0003] The HSUPA system is also called an uplink enhancement system, or E-DCH system for short. In the TD-CDMA system, the physical layer of the HSUPA system introduces the E-PUCH physical channel, which is used to transmit the CCTrCH of the E-DCH type. The scheduling entity located in the MAC-e of the NodeB is responsible for the allocation of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/00H04W56/00H04L1/18H04B7/26
CPCH04B7/2637H04W56/00H04B7/2618Y02D30/70
Inventor 刘虎芮华耿鹏陈慧张银成
Owner ZTE CORP
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