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Radio resource allocation in a narrowband communication system

專利號(hào)
US10791555B2
公開(kāi)日期
2020-09-29
申請(qǐng)人
Telefonaktiebolaget LM Ericsson (publ)（SE Stockholm）
發(fā)明人
Vidit Saxena; Johan Bergman; Yufei Blankenship; Xingqin Lin
IPC分類
H04W72/04; H04L5/00; H04W76/27
技術(shù)領(lǐng)域
resource,pusch,allocation,uplink,nb,radio,in,tone,circuitry,khz
地域： Stockholm

摘要

Methods and apparatuses of resource allocation for wireless communication are presented. In an example, a user equipment (12) may contain radio circuitry and processing circuitry such that the user equipment (12) is configured to obtain a set of multiple indices, where each index in the set of multiple indices corresponds to a different uplink resource allocation from a set of uplink resource allocations (11) formed from twelve contiguous subcarriers. In an aspect, the set of uplink resource allocations (11) includes an allocation of the twelve contiguous subcarriers, two allocations of six contiguous subcarriers, four allocations of three contiguous subcarriers, and twelve allocations of a single subcarrier. In a further aspect, the user equipment (12) can receive an index indication corresponding to an index from the set of multiple indices from the base station (10). Also, the user equipment (12) can transmit data to the base station (10) using the resource allocation corresponding to the received index indication.

說(shuō)明書(shū)

  • Another possibility is to signal the NB-PUSCH resource configuration semi-statically (e.g. via RRC signalling). For e.g., subcarriers 0-2 and 3-5 may be configured for 3-tone transmissions and subcarriers 6-11 may be configured for 6-tone transmission on a semi-static basis (Config 2 in FIG. 13). In this case, there are only three possible NB-PUSCH frequency resource allocations (two 3-tone allocations and one 6-tone allocation), which can be indicated using only two bits in the DCI.

    • In another embodiment, the NB-PUSCH resource allocation may use a nested structure. One example of the illustrated resource structure is shown in Table 3. In Table 3, for each NB-PUSCH resource configuration, BNB-PUSCH represents NB-PUSCH-Bandwidth, mNB-PUSCH,i is the number of tones in the resource unit, Ni is the number of resource units of mNB-PUSCH,i tones. For a given each NB-PUSCH resource configuration, summation of the

    N i , ∑ i = 0 3 ? N i ,
    is the total number of schedule-able resource units. NB-PUSCH resource configuration 0 is illustrated in FIG. 15. NB-PUSCH resource configuration 1 is illustrated in FIG. 16. NB-PUSCH resource configuration can be configured by eNB, for example, via SIB.

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