Method and apparatus for obtaining uplink and downlink timeslot ratio information of time division duplex system

A time division duplex system, proportional technology, applied in wireless communication, error prevention/detection using return channel, network traffic/resource management, etc. Effect

Active Publication Date: 2009-08-05
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the ratio of uplink and downlink time slots in the TDD system, there is no specific method to obtain the ratio of uplink and downlink time slots

Method used

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  • Method and apparatus for obtaining uplink and downlink timeslot ratio information of time division duplex system
  • Method and apparatus for obtaining uplink and downlink timeslot ratio information of time division duplex system
  • Method and apparatus for obtaining uplink and downlink timeslot ratio information of time division duplex system

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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0053] see figure 2 , figure 2 It is a flowchart of a method for obtaining ratio information of uplink and downlink time slots of a time division duplex system provided by an embodiment of the present invention. In an embodiment of the present invention, the PHICH resource in a specific subframe is preset not to change with the change of the uplink and downlink time slot ratio, wherein the specific subframe is subframe 5 in a 10 ms radio frame of the TDD system. Further, presetting that the PHICH resource in a specific subframe does not change with the change of the uplink and downlink time slot ratio can be realized by presetting that the PHICH resource in the specific subframe corresponds to an uplink subframe; or by presetting the The PHICH resou...

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Abstract

The invention discloses a method for obtaining upstream and downstream time slot proportion information, which comprises the following steps: resources that are occupied by a physical hybrid automatic retransmission indicating channel PHICH in a specified subframe are determined; resources that are occupied by a physical downstream control channel PDCCH in the specified subframe are determined according to the resources occupied by the PHICH; signaling indicating information that is transmitted in the PDCCH channel is detected; and a dynamic broadcast channel D-BCH is detected according to the signaling indicating information transmitted in the PDCCH channel, thus obtaining the upstream and downstream time slot proportion information that is transmitted in the D-BCH. The invention simultaneously discloses a device for obtaining the upstream and downstream time slot proportion information, the method and the device can be adopted for obtaining upstream and downstream time slot proportion.

Description

technical field [0001] The invention relates to the technical field of time division duplex (TDD), in particular to a method and a device for acquiring ratio information of uplink and downlink time slots in a TDD system. Background technique [0002] At present, in high-speed downlink packet access (HSDPA, High Speed ​​Downlink Packet Access), high-speed uplink packet access (HSUPA, High Speed ​​Uplink Packet Access) and future long-term evolution (Long Term Evolution, LTE) technologies, in order to correct transmission errors Fast feedback retransmission of the data blocks, and make full use of the information carried by the wrong data through data block merging. As a better solution, Hybrid Automatic Repeat Request (HARQ, Hybrid Automatic Repeat Request) technology has been adopted by various communications system adopted. Many communication systems, such as HSDPA, HSUPA and future LTE, adopt multi-channel parallel stop and other HARQ protocols to support continuous sched...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/18H04W28/04
Inventor 肖国军索士强
Owner DATANG MOBILE COMM EQUIP CO LTD
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