公开(公告)号：US20190280821A1

公开(公告)日：2019-09-12

申请号：US16345013

申请日：2017-10-31

Applicant: Nokia Technologies Oy

Inventor： Yanji Zhang ,  Chunli Wu ,  Yuantao Zhang

IPC: H04L1/16 ,  H04W74/08 ,  H04W28/04 ,  H04W74/00

Abstract: A method is provided including receiving, by a user equipment from a wireless network, an indication of a plurality of contention based transmission occasions and a monitoring window size that the user equipment monitors for feedback for the contention based transmission; determining, by a user equipment of a wireless network, whether an amount of user data can be transmitted on one or more of contention based transmission occasions; performing one or more contention based transmissions during the one or more of the contention based transmission occasions based at least on the determination; and monitoring for feedback for each of the performed contention based transmissions based at least on the monitoring window size, wherein the feedback includes feedback for each contention based transmission in a feedback mapping window.

公开(公告)号：US20190273576A1

公开(公告)日：2019-09-05

申请号：US16302248

申请日：2016-05-26

Applicant: Nokia Technologies Oy

Inventor： Yuantao Zhang ,  Zhuyan Zhao ,  Jingyuan Sun ,  Hongchao Li ,  Deshan Miao ,  Yanji Zhang ,  Klaus Ingemann Pedersen ,  Mihai Enescu

IPC: H04L1/00 ,  H04B1/7073 ,  H04L5/00

Abstract: Various communication systems may benefit from improved transmissions. For example, a network transmission may benefit from improved throughput and efficiency in non-schedule multiple access communications. A method includes selecting at a user equipment operating in a non-scheduled access scheme at least one of a first codeword or a second codeword based on an amount of data. The data in the non-scheduled access scheme can be spread according to a spreading sequence. The method also includes determining a transport block size for at least one of the first codeword or the second codeword. In addition, the method includes transmitting the data from the user equipment to a network node using at least one of the first codeword or the second codeword.

公开(公告)号：US20190239251A1

公开(公告)日：2019-08-01

申请号：US16313953

申请日：2016-07-04

Applicant: Nokia Technologies Oy

Inventor： Zexian Li ,  Yuantao Zhang ,  Yanji Zhang ,  Juha Sakari Korhonen

IPC: H04W74/08 ,  H04W74/00

CPC classification number: H04W74/0808 ,  H04L5/0053 ,  H04L5/0091 ,  H04W74/004 ,  H04W74/006 ,  H04W74/0833

Abstract: Systems, methods, apparatuses, and computer program products of preamble sequence management for contention based access are provided. One method may include a user equipment sending a contention based access (CBA) request message, such as a random access procedure (RACH) message, to a network node (e.g., a base station or eNB). The CBA request message may include an indication that the user equipment wants to obtain a preamble for CBA data transmission and is not for full network access. The method may then include receiving an allocation of a preamble for CBA from the network node.