Huawei Technologies Co., Limited

Chaobin Yang

Quanzhong Gao

Fan Wang

Hao Tang

Wei Chen

Yong Wang

Zhe Liu

Wei Zhu Chen

David Jean-Marie Mazzarese

Guohua Zhou

Liwen Zhang

Xiaojun Zheng

Bin Xiong

Shuai Chen

Embodiments of this application relate to the field of wireless communications technologies, and provide an access method, a switch method, and an apparatus. The access method includes: receiving, by a terminal, a system message via a downlink carrier, where the system message includes information used to indicate a frequency channel number of a second uplink carrier; and initiating, by the terminal, random access via the second uplink carrier, where a frequency channel number of the downlink carrier belongs to a first frequency band, and a frequency channel number of the second uplink carrier belongs to a second frequency band.

Communication method and apparatus

An uplink resource grant method includes receiving, by a terminal, configuration information from a network device, where the configuration information includes information about a first uplink resource and information about a second uplink resource, and searching, by the terminal, a search space for a downlink control channel to obtain grant information. The search space includes a first control channel candidate set when the downlink control channel carries grant information of the first (or the second) uplink resource, and the search space includes a second control channel candidate set when the downlink control channel carries grant information of the second (or the first) uplink resource or grant information of a downlink resource. The first control channel candidate set is the same as the second control channel candidate set.

Uplink resource grant methods and apparatus

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Shanghai, China

Chaobin Yang