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Transmission device and method for downlink control signaling in wireless communication system

A wireless communication system and control signaling technology, applied in radio transmission systems, transmission systems, multiplexing communications, etc., to achieve the effects of improving spectrum utilization, reducing bit overhead, and reducing time-frequency resources

Inactive Publication Date: 2008-08-13
BEIJING SAMSUNG TELECOM R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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The disadvantage of this method is that it contains a lot of redundant information

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  • Transmission device and method for downlink control signaling in wireless communication system
  • Transmission device and method for downlink control signaling in wireless communication system
  • Transmission device and method for downlink control signaling in wireless communication system

Examples

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Embodiment

[0083] This section presents two examples of the invention. In order to avoid making the description of this patent too lengthy, in the following description, detailed descriptions of functions or devices that are well known to the public are omitted.

[0084] In all the embodiments, it is assumed that the downlink physical control channels supported by the system include: downlink localized resource assignment channel, downlink distributed resource assignment channel and uplink resource assignment channel. In addition, it is assumed that for each channel, the system can support two modulation and coding schemes (MCS). In this way, the number of types of downlink physical control channels T=6, as shown in the following table:

[0085]

[0086] It is also assumed that the maximum number of all downlink physical control channels that the base station can transmit is M=12.

no. 1 example

[0088] This embodiment corresponds to the first method in which the base station instructs the downlink physical control channel to allocate a combined index. The base station indicates in the public control signaling that the downlink physical control channel allocation combination index needs to be used bits.

[0089] The operation of the base station is as follows. In this embodiment, it is set that the base station allocates the combined sequence P of the downlink physical control channel 1 P 2 ...P 6 =321122, that is, three type 1 downlink physical control channels, two type 2 downlink physical control channels are allocated, and so on. Set the downlink physical control channel allocation combination sequence according to the sequence P 1 P 2 ...P T to sort in ascending order of the lexicographical order. base station according to Figure 4The algorithm shown can calculate the downlink physical control channel allocation combination index=14930. Therefore, the ...

no. 2 example

[0094] This embodiment corresponds to the second method in which the base station instructs the downlink physical control channel to allocate a combined index. Set N = (6, 4, 4, 3, 6, 5). The base station indicates in the public control signaling that the downlink physical control channel allocation combination index needs to be used bits.

[0095] The operation of the base station is as follows. In this embodiment, it is set that the base station allocates the combined sequence P of the downlink physical control channel 1 P 2 ...P 6 =321122, that is, three type 1 downlink physical control channels, two type 2 downlink physical control channels are allocated, and so on. Set the downlink physical control channel allocation combination sequence according to the sequence P 1 P 2 ...P T to sort in ascending order of the lexicographical order. According to this base station Figure 6 The algorithm shown can calculate the downlink physical control channel allocation combi...

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Abstract

A downlink control signaling transmission method in wireless communication system is provided, which comprises following steps: base stations in public control signaling through transmitting downlink physical control channel distribution combination index indicates downlink physical control channel type and the number of downlink physical control channel in various types transmitted in current transmission time intervals; base stations transmitted various downlink physical control channels. The invention compared to other downlink control signaling transmission methods, reduces public control signaling bit cost, decreases time-frequency resources occupied by public control signaling, thus improving system spectrum utilization.

Description

technical field [0001] The present invention relates to a wireless communication system, in particular to a transmission device and method for downlink control signaling in the wireless communication system. Background technique [0002] Now, the 3GPP standardization organization has begun to carry out long-term evolution (LTE, Long Term Evolution) of its existing system specifications. Among the many physical layer transmission technologies, downlink transmission technology based on Orthogonal Frequency Division Multiplexing (hereinafter referred to as OFDM) and single carrier frequency division multiple access (Single Carrier Frequency Division Multiple Access, hereinafter referred to as SC) -FDMA) uplink transmission technology is a research hotspot. OFDM technology is essentially a multi-carrier modulation communication technology. Its basic principle is to decompose a high-rate data stream into several low-rate data streams and transmit them simultaneously on a group o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B7/204H04Q7/38H04Q7/36H04J11/00
Inventor 张玉建李小强李周镐
Owner BEIJING SAMSUNG TELECOM R&D CENT
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