Resource scheduling method, device and system
A technology for resource scheduling and resource allocation information, applied in the field of resource scheduling methods, devices and systems, can solve the problems of inability to meet V2X requirements, shortened scheduling period, and large control overhead, so as to shorten the resource scheduling process, reduce overhead, and shorten application. The effect of resource time
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Embodiment 1
[0071] In this embodiment, the UE uses the SR resources allocated by the base station to request for V2X resources.
[0072] Specifically, refer to Figure 4 , the implementation process of this embodiment is as follows:
[0073] (1) The V2X user equipment (UE) learns the physical uplink control channel (PUCCH, Physical Uplink Control CHannel) 1 resource configured in the sr-PUCCH-ResourceIndex field of IE:SchedulingRequestConfig according to the radio resource control (RRC, Radio ResourceControl) signaling, and obtains The location and period of its resource scheduling request (SR, Scheduling Request).
[0074] (2) The UE makes a V2X resource request by using the SR resources for which there is no uplink acknowledgment information (ACK / NACK) feedback.
[0075] Optionally, according to the requested data packet size, if the configuration data packet is two types (190B and 300B), the data packet size is configured as 1 bit (bit), and the data packet is [0, 1], for example, 0 ...
Embodiment 2
[0113] In this embodiment, the UE uses the SPS-R resources allocated by the base station to request for V2X resources.
[0114] Among them, the SPS-R resource is time-divided with the SR resource. It is dedicated to V2X user equipment through IE configuration. The SPS-R resource period and resource location are configured by the base station. SPS-R can also be configured on a dedicated V2X resource pool.
[0115]In order to improve the user multiplexing degree of SPS-R resources, for the normal cyclic prefix, each slot (slot) has 7 single-carrier frequency division multiple access (SC-FDMA, Single-carrier Frequency-Division Multiple Access) symbols, Each SC-FDMA symbol will generate a sequence of 12 (corresponding to 12 subcarriers of 1 resource block (RB, Resource Block)), which is cyclically shifted by a cell-specific frequency domain sequence of length 12 Obtained (one RB supports up to 12 cyclic shifts in the frequency domain), three SC-FDMA symbols in one uplink resource ...
Embodiment 3
[0156] In this embodiment, the four orthogonal sequences allocated by LTE to PUCCH format1 / 1a / 1b are allocated to the same V2X user equipment, that is, the orthogonal sequences allocated to the V2X user equipment will not be multiplexed with other user equipment.
[0157]In order to increase the number of multiplexing users on SR resources, the original LTE, for the normal cyclic prefix, each slot has 7 SC-FDMA symbols, and each SC-FDMA symbol will generate a sequence of 12 (corresponding to 12 subcarriers), the sequence is obtained by cyclically shifting a cell-specific frequency domain sequence with a length of 12 (one RB supports at most 12 cyclic shifts in the frequency domain), and three SC- The FDMA symbols are used to send DMRS, and the remaining 4 SC-FDMA symbols are used to send PUCCH format1 / 1a / 1b. In order to increase the number of multiplexable PUCCH format1 / 1a / 1b UEs per RB, in the time domain, the modulation symbols are multiplied by an orthogonal sequence of len...
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