US Patent No. 10,461,908


Patent No. 10,461,908
Issue Date October 29, 2019
Title Techniques For Providing Channels In Low Latency Lte Wireless Communications
Inventorship Shimman Arvind Patel, San Diego, CA (US)
Wanshi Chen, San Diego, CA (US)
Peter Gaal, San Diego, CA (US)
Hao Xu, San Diego, CA (US)
Juan Montojo, San Diego, CA (US)
Durga Prasad Malladi, San Diego, CA (US)
Assignee QUALCOMM Incorporated, San Diego, CA (US)

Claim of US Patent No. 10,461,908

1. A method for communicating using a configurable bandwidth, comprising:receiving, at a user equipment (UE), a control channel from a serving evolved Node B (eNB), wherein the control channel includes a resource grant for an uplink shared data channel in an allocation space, wherein the allocation space includes a plurality of resource block groups in a frequency domain over a plurality of symbols in a time domain, and wherein the resource grant indicates a number of resource block groups, included in the plurality of resource block groups, in the frequency domain over a number of symbols forming a slot of a subframe in the time domain;
transmitting, by the UE, data in the uplink shared data channel in the number of resource block groups over at least a first portion of the number of symbols;
determining a symbol of the number of symbols for transmitting one or more demodulation reference signals (DM-RS) in the allocation space, where the symbol is used by a plurality of UEs to transmit DM-RSs, wherein determining the symbol for transmitting the one or more DM-RSs is based at least in part on an indication of a time domain location of the symbol within the uplink shared channel indicated by in the resource grant, wherein the indication is received in the control channel from the serving eNB; and
transmitting the one or more DM-RSs in the number of resource block groups within the symbol.