US Patent No. 9,860,910

METHOD AND APPARATUS FOR OBTAINING MAPPING BETWEEN RANDOM ACCESS PARAMETER AND RESOURCE


Patent No. 9,860,910
Issue Date January 02, 2018
Title Method And Apparatus For Obtaining Mapping Between Random Access Parameter And Resource
Inventorship Lingli Pang, Shanghai (CN)
Xiaoxiao Zheng, Shanghai (CN)
Xueli Ma, Shenzhen (SE)
Fan Wang, Stockholm (SE)
Assignee Huawei Technologies Co., Ltd., Shenzhen (CN)

Claim of US Patent No. 9,860,910

1. A method for obtaining a mapping between a random access parameter and a resource, comprising:
obtaining, by a user equipment, a random access parameter list, and obtaining a serial number of a parameter in the random
access parameter list;

obtaining, by the user equipment, a resource list; and
obtaining, by the user equipment, the mapping between the random access parameter and a common enhanced dedicated channel
(E-DCH) resource in the resource list according to the obtained serial number of the random access parameter and a total number
of resources in the obtained resource list; and

sending, by the user equipment, a selected random access parameter to a network side device;
receiving, by the user equipment, from the network side device, a response which indicates whether the common E-DCH resource
mapped with the selected random access parameter is available;

wherein the random access parameter list comprises a random access parameter in type 2 or in type 3 in a second system information
block;

wherein obtaining the resource list comprises: obtaining a list of a 2 ms common E-DCH resource in a first system information
block; and

wherein obtaining the mapping between the random access parameter and the common E-DCH resource comprises:
obtaining the mapping between the random access parameter and the common E-DCH resource by using a formula X?=SigInd mod Z,
wherein:

X? is a default common E-DCH resource index, Z is the total number of resources in the list of the 2 ms common E-DCH resource
in the first system information block, SigInd is the serial number of the parameter in the random access parameter list, and
mod is a modulo operation.