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A physical multicast channel resource transmission method, base station and user terminal

A technology of physical multicast channel and transmission method, applied in the field of resource allocation and use of physical multicast channel

Active Publication Date: 2019-10-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, after the introduction of MBSFN subframes in new carriers to support ePDCCH transmission, it will have an impact on MBMS service transmission in PMCH, for example, ePDCCH or more generally, how unicast services and PMCH are multiplexed in subframes

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0094] The inventors of the present invention propose that the base station sends data in subframes according to the subframe type and / or the serving cell type (after introducing multi-carrier technology in LTE, carrier and cell are equivalent concepts). Among them, the subframe type includes MBSFN and non-MBSFN subframes, the serving cell type includes a serving cell that transmits CRS (refers to the definition of CRS given in LTE R11) and a serving cell that does not transmit CRS, and the transmitted data includes: unicast Service data and / or multicast service data (refers to transmission through PMCH). An MBSFN subframe refers to a subframe that actually carries the PMCH, and a non-MBSFN subframe refers to a subframe that does not actually carry the PMCH. The network side configures unicast and / or PMCH resources in the subframe, and forms configuration signaling to send to the receiving end, where the receiving end includes the base station (the upper layer node of the rece...

example 1

[0169] When the base station knows or determines which subframes in the radio frame need to be configured with PMCH, when the base station determines that subframe #0 is a Normal CP in the radio frame, if the subframe type for sending RCRS is a non-MBSFN subframe (that is, If the subframe of PMCH is not configured), the base station sends RCRS according to the RCRS position of the Normal CP. If the subframe type for sending RCRS is MBSFN subframe (that is, the subframe with PMCH configured), the base station sends RCRS according to the RCRS position of Extended CP.

[0170] In the radio frame, when the base station determines that subframe #0 is the Extended CP, the base station sends the RCRS according to the Extended CP in the subframe in which the RCRS is sent (whether the subframe is an MBSFN subframe type or not).

[0171] Wherein, when the base station performs the configuration operation, it can directly determine which subframes in the radio frames need to be configured...

example 2

[0175] When the base station determines that the serving cell uses a new carrier, that is, when the cell does not transmit CRS, the base station sends PMCH resource configuration signaling, which indicates that all 10 subframes (subframes #0 to #9) in the radio frame are configured with There are PMCH resources, and the PMCH resources are allocated to PRB pairs except the middle 6 PRBs of the system bandwidth, and the number of PRB pairs occupied by the PMCH is 15.

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Abstract

A method, base station, and user terminal for physical multicast channel resource transmission, related to the field of mobile radio communication. The disclosed method of the present invention comprises: the base station transmits corresponding data on the basis of a subframe type and / or a service cell type, where the subframe type comprises a multicast-broadcast single-frequency network (MBSFN) and a non-MBSFN, the service cell type comprises a service cell having cell-specific reference signal (CRS) transmission and a service cell having no CRS transmission, and the data comprises unicast service data and / or multicast service data. Also disclosed are the base station and the user terminal. When employed, the technical solution of the present application allows intra-subframe frequency-division multiplexing of a unicast service and of a PMCH to be of increased rationality, and allows a receiving end access system of the unicast service and operations in the system to be subjected to minimized impact from the PMCH.

Description

technical field [0001] The invention relates to the field of mobile wireless communication, in particular to physical multicast channel (PMCH) resource allocation and use. Background technique [0002] In LTE R11, a new carrier type was discussed, but in the LTE R11 stage, the standardization of the new carrier has not been completed. At present, it has entered the LTE R12 stage, and the standardization of the new carrier has been postponed to LTE R12, and there are Some preliminary conclusions are drawn and some new functions are introduced. [0003] The new carrier is being standardized as a new carrier type. The following are some consensus conclusions in the new carrier: [0004] In the new carrier, a single-port cell-specific pilot (CRS) with a period of 5 milliseconds (5ms) is used to perform synchronous tracking (in the text, it is called 5msCRS, or called synchronous tracking CRS), which is obviously different from the CRS in the existing system. The same, but the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/06H04W72/04
CPCH04W48/12
Inventor 苟伟戴博韩晓钢彭佛才
Owner ZTE CORP
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