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Device and method for control signal transmission in radio communication system
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A wireless communication system and control signaling technology, applied in wireless communication, communication between multiple stations, radio/induction link selection and arrangement, etc., can solve problems such as increasing the complexity of base stations, and achieve the effect of reducing complexity
Inactive Publication Date: 2008-04-02
BEIJING SAMSUNG TELECOM R&D CENT +1
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This will also increase the complexity of the base station when configuring control signaling
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[0077]This part gives three embodiments of the invention, and the embodiments focus on how to process and generate the primary control signaling and the secondary control signaling to indicate channel resource allocation. 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.
no. 1 example
[0079] In this embodiment, the downlink data is transmitted on a partial channel, and the base station directly indicates the channel resource allocation status in another part of the bandwidth in the secondary control signaling.
[0080] In this embodiment, the system bandwidth is 20MHz, which is divided into 2 parts of bandwidth B 1 and B 2 , each of which is 10MHz. There are 1200 available subcarriers (excluding DC) in the 20MHz bandwidth, and one resource block includes 12 subcarriers in the frequency domain, so there are 50 resource blocks for each partial bandwidth. Corresponding to 100 resource blocks in the entire system, numbered b i , i=1, 2, ... 100, where B 1 Contains resource blocks 1, 2, ..., 50, while B 2 The resource blocks contained are 51, 52, ..., 100. In a data transmission, the base station allocates resource blocks numbered as follows to a user equipment: 23, 24, 25, 26, 27, 45, 46, 47, 48, 49, 50, 51, 52, 53, 71, 72 , 73, 74. The base station is i...
no. 2 example
[0085] In this embodiment, the downlink data is transmitted using distributed channels, and the base station uses one bit of information in the secondary control signaling to indicate the channel resource allocation status in another part of the bandwidth.
[0086] In this embodiment, still taking the system bandwidth of 20MHz as an example, it is divided into two partial bandwidths B 1 and B 2 , each of which is 10MHz. There are 1200 available subcarriers (excluding DC) in the 20MHz bandwidth, and a distributed resource block includes 12 distributed subcarriers in each partial bandwidth, so there are 50 resource blocks for each partial bandwidth. Corresponding to 100 distributed resource blocks in the entire system, numbered b i , i=1, 2, ... 100, where B 1 Contains resource blocks 1, 2, ..., 50, while B 2 The resource blocks contained are 51, 52, ..., 100. In order to reduce the signaling overhead during distributed transmission as much as possible, it is set that the n...
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Abstract
An equipment and method for transferring control signaling in the radio communication system comprise steps: corresponding to the disposing situation of the system bandwidth is more than the bandwidth hold by the partial user equipment in the radio communication system, a base station in the radio communication system divided its system bandwidth into two partial bandwidth; the base station distributes the resource blocks to each user equipment; aiming at each user equipment, the base station transfers corresponding main control signal distributed by the channel resource in one partial bandwidth; when the bandwidth hold by the user equipment equals to the system bandwidth, in the channel resource indicated by the main control signaling, the base station transfers secondary control signaling corresponding to the user equipment to indicate the channel resource distributing situation in the other partial bandwidth; the base station sends the control signaling including the main control signaling and the secondary control signaling. Using the method of the present invention, can lead the control signaling transferred by the user equipment aiming at different bandwidth process ability to have the same form, thereby decreases the complexity of the resource occupied by the base station while distributing control signaling.
Description
technical field [0001] The present invention relates to a wireless communication system, in particular to a device and a method for transmitting control signaling in the wireless communication system. Background technique [0002] At present, the 3GPP standardization organization has begun to carry out long-term evolution (Long Term Evolution, hereinafter referred to as LTE) of its existing system specifications. Orthogonal Frequency Division Multiplexing (hereinafter referred to as OFDM) technology has become a downlink transmission scheme adopted by LTE due to its high spectrum utilization rate and low processing complexity. [0003] 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 of mutually orthogonal sub-carriers. OFDM technology has performance advantages in many aspects due to its multi-carrier ...
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