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Method and device for wireless timeslot allocation in time division duplexing mobile communication system

A technology of mobile communication system and time slot allocation, which is applied in transmission system, wireless communication, radio transmission system, etc. It can solve the problem that the advantages of TDD are not fully utilized, it is difficult to meet various business types, and the proportion of time slots is not rich enough, etc. To achieve the effect of enriching the proportion of uplink and downlink time slots, meeting the needs of various business types, and adjusting flexibly

Active Publication Date: 2009-04-01
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Obviously, in the existing LTE TDD Type2 frame structure, when the uplink and downlink time slots are allocated with a 5ms half-frame cycle, it can only support up to 6 different uplink and downlink time slot ratios, and the minimum granularity of time slot ratio adjustment is 14%. , the types of time slot ratios are not rich enough, and the adjustment is not flexible and accurate enough, it is difficult to meet the needs of various business types, and the advantages of TDD technology have not been fully utilized

Method used

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  • Method and device for wireless timeslot allocation in time division duplexing mobile communication system
  • Method and device for wireless timeslot allocation in time division duplexing mobile communication system
  • Method and device for wireless timeslot allocation in time division duplexing mobile communication system

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Embodiment 1

[0054] In this embodiment, both the first specific time slot and the second specific time slot are composed of three special time slots; the time slot allocation mode adopts the method of having two pairs of switching points within 10 ms.

[0055] In this way, within a 10ms period, the first time slot in each 5ms is fixed as the downlink transmission time slot, the second time slot is fixed as the uplink transmission time slot, and the remaining time slots are arbitrarily set as uplink transmission time slots or downlink transmission time slots. time slot.

[0056] The frame structure adopted in this embodiment is consistent with the prior art, and the specific time slot allocation scheme formed in this embodiment is as follows Figure 3a ~ 3f As shown, there are 36 types, corresponding to different time slot patterns, and 11 types of uplink and downlink time slot ratios are supported, as shown in Table 2.

[0057] Number of slot plans 1 2 3 4 5 6 7 8 9 10...

Embodiment 2

[0061] In this embodiment, the first specific time slot is composed of three special time slots, and the second specific time slot is composed of DwPTS and a short time slot that can transmit downlink control signaling or service data, and the duration of the short time slot is 191.66us; The slot allocation mode adopts a method with a pair of switching points within 10ms.

[0062] In this way, within a 10ms cycle, the first time slot in the first 5ms is fixed as the downlink transmission time slot, the second time slot is fixed as the uplink transmission time slot, and all the time slots in the second 5ms are downlink transmission time slots. slot, and the remaining time slots are arbitrarily set as uplink transmission time slots or downlink transmission time slots.

[0063] In this embodiment, the frame structure shown in FIG. 4 is adopted, and the DwPTS is sent twice within 10 ms. The specific time slot allocation scheme formed in this embodiment is as follows Figure 5 As...

Embodiment 3

[0068] In this embodiment, the first specific time slot is composed of three special time slots, and the second specific time slot is a short time slot for uplink / downlink data or control signaling transmission, and the duration of the short time slot is 275us; The allocation mode adopts a method with a pair of switching points within 10ms.

[0069] In this way, within a 10ms period, the first time slot in the first 5ms is fixed as the downlink transmission time slot, the second time slot is fixed as the uplink transmission time slot, and all other time slots are arbitrarily set as uplink transmission time slots or downlink transmission time slots. transmission time slot.

[0070] In this embodiment, the frame structure shown in FIG. 6 is adopted, and the DwPTS is sent only once within 10 ms. The specific time slot allocation scheme formed in this embodiment is as follows Figure 7 As shown, there are 13 kinds, corresponding to different time slot patterns, and 13 kinds of u...

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Abstract

The invention discloses a method of a wireless frame up and down time slot distribution in a time division duplexing mobile communication system, wherein 10 ms is a period, each time slot in the period is ensured as an up transmitting time slot or a down transmitting time slot, up or downtransmission is completed in corresponding time slot. The invention also discloses a device of a wireless frame up and down time slot distribution in a time division duplexing mobile communication system, according to the method and the device of the invention , scale types of the time slot is enriched, causing the scale adjustment of the time slot to be more agile and precise.

Description

technical field [0001] The invention relates to time slot allocation technology in wireless frames, in particular to a method and device for allocating uplink and downlink time slots in wireless frames in a time division duplex mobile communication system. Background technique [0002] In the Long Term Evolution Time Division Duplex (LTE TDD) system, there are currently two modes: Type1 TDD and Type2 TDD, wherein Type2 TDD is an evolution technology of Time Division-Synchronous Code Division Multiple Access (TD-SCDMA). In LTE, the Low Chip Rate-Time Division Duplex (LCR-TDD) frame structure has been written into the standard as the LTE TDD Type 2 frame structure. [0003] Such as figure 1 As shown, in the LTE TDD Type2 frame structure, each 10ms radio frame (Radio Frame) is divided into two identical 5ms half-frames (Half-frame), and each half-frame consists of seven regular time slots (TimeSlot) and three Each regular time slot consists of several Orthogonal Frequency Div...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/04
CPCH04W72/0446H04W72/04H04B7/2643
Inventor 索士强潘学明唐海王可
Owner DATANG MOBILE COMM EQUIP CO LTD
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