Method and equipment for transmitting downlink data

A transmission method and downlink data technology, applied in the field of communication

Active Publication Date: 2011-08-03
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0026] The embodiment of the present invention provides a downlink data transmission method and equipment, which solves the existing problem of how to implement PDSCH scheduling and transmission in MBSFN sub-towns

Method used

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  • Method and equipment for transmitting downlink data
  • Method and equipment for transmitting downlink data
  • Method and equipment for transmitting downlink data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0110] Embodiment 1. The base station schedules the downlink transmission of all terminal devices configured as tm8 or tm9 on the remaining MBSFN subframes. The corresponding processing procedures are shown in FIG. 4a and FIG. 4b.

[0111] Step S401, the base station configures the transmission mode of some terminal devices as transmission mode 8 or transmission mode 9.

[0112] Set such a set of terminal devices as terminal set 1 .

[0113] Step S402, the terminal device receives the base station configuration command, and confirms the transmission mode.

[0114] Step S403, the base station determines the remaining MBSFN subframes.

[0115] It should be pointed out that the above-mentioned step S403 can start after the execution of step S401, and there is no necessary sequence relationship with step S402. The embodiment of the present invention is only a number added for the convenience of description, and such a change does not affect the scope of the present invention. pr...

Embodiment 2

[0120] Embodiment 2, the base station schedules the downlink transmission of the terminal equipment configured as tm8 or tm9 with uplink transmission on the remaining MBSFN subframes, and the corresponding processing process is shown in Fig. 5a and Fig. 5b.

[0121] Step S501, the base station configures the transmission mode of some terminal devices as transmission mode 8 or transmission mode 9.

[0122] Set such a set of terminal devices as terminal set 1 .

[0123] Step S502, the terminal device receives the base station configuration command, and confirms the transmission mode.

[0124] Step S503 , the base station determines the remaining MBSFN subframes, and determines the terminal equipment in the terminal set 1 that has uplink data to be scheduled.

[0125] The set composed of such terminal devices is set as terminal set 2 .

[0126] It should be pointed out that the above-mentioned step S503 can start after the execution of step S501, and there is no necessary seque...

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Abstract

The embodiment of the invention discloses a method and equipment for transmitting downlink data. By applying the technical scheme provided by the embodiment of the invention, remaining MBSFN (Multimedia Broadcast multicast service Single Frequency Network) subframes are used for realizing scheduling and transmission of downlink unicast data transmission of specific terminal equipment in a fixed transmission mode, so that extra superior signaling is not required to be added and the superior signaling is not required to be amended while PDSCH (Physical Downlink Shared Channel) transmission is realized on the MBSFN, and the corresponding terminal equipment can still achieve the same power saving effect as that of the earlier version.

Description

technical field [0001] The present invention relates to the technical field of communications, in particular to a downlink data transmission method and device. Background technique [0002] MBMS (Multimedia Broadcast Multicast Service, Multimedia Broadcast Multicast Service) is used to provide multimedia broadcast and multicast services for users in wireless cells. In the LTE (Long Term Evolved, Long Term Evolution) system, MBMS can be provided on both the frequency layer dedicated to MBMS and the frequency layer shared with non-MBMS services. An LTE cell supporting MBMS can be an MBMS dedicated cell or an MBMS / unicast hybrid cell. The MBMS service can be transmitted in a single cell or in multiple cells. The multi-cell transmission of MBMS needs to support the MBSFN transmission mode. [0003] The so-called MBSFN (Multimedia Broadcast multicast service Single Frequency Network, Multimedia Broadcast Multicast Service Single Frequency Network) refers to synchronous transmi...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): H04W72/14
CPCH04W52/0229H04W80/02H04W4/06H04W72/005H04W72/14H04W52/0212H04W72/12Y02B60/50Y02D30/70H04W72/30H04B7/15542H04W72/0446
Inventor谌丽许芳丽丁昱
OwnerDATANG MOBILE COMM EQUIP CO LTD