公开(公告)号：US10021685B2

公开(公告)日：2018-07-10

申请号：US15264839

申请日：2016-09-14

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Shimman Arvind Patel ,  Juan Montojo

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/044 ,  H04L5/003 ,  H04L5/0048 ,  H04L5/0058 ,  H04W72/0406

Abstract: Various aspects described herein relate to allocating resources in wireless communications. A subset of resource block (RB) groups configured for a legacy wireless communication technology having a first transmission time interval (TTI) can be determined, where the first TTI is based on one subframe in duration, and where each RB group in the subset of RB groups includes one or more RBs. A resource allocation for a low latency communication technology having a second TTI, the second TTI being less than one subframe in duration, can be determined where the resource allocation including one or more low latency RBs in the subset of RB groups. Data can be communicated over resources in the one or more low latency RBs, the low latency RBs being based on the second TTI, and the resources being associated with the resource allocation.

公开(公告)号：US20180183552A1

公开(公告)日：2018-06-28

申请号：US15663368

申请日：2017-07-28

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Jing Sun ,  Alberto Rico Alvarino ,  Shimman Arvind Patel

IPC: H04L5/00 ,  H04W72/04 ,  H04L27/26

Abstract: Methods, systems, and devices for wireless communication are described that support sounding reference signal (SRS) transmission in low latency wireless transmissions. A set of shortened transmission time intervals (sTTIs) for uplink transmissions of a first wireless service may be identified; the set of sTTIs located within subframe time boundaries of a subframe of a second wireless service with a longer TTI than the sTTIs. Two or more sTTIs within the set of sTTIs may be used for SRS transmissions within the subframe time boundaries.

公开(公告)号：US20180167172A1

公开(公告)日：2018-06-14

申请号：US15841278

申请日：2017-12-13

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Wanshi Chen ,  Jing Sun ,  Shimman Arvind Patel ,  Hao Xu

IPC: H04L1/18 ,  H04W72/12

CPC classification number: H04L1/1887 ,  H04L1/1812 ,  H04L1/1825 ,  H04L1/1854 ,  H04L5/001 ,  H04L5/0055 ,  H04L23/00 ,  H04W56/0045 ,  H04W72/0406 ,  H04W72/1215

Abstract: Methods, systems, and devices for wireless communication are described that identify an uplink transmission time interval (TTI) length for uplink transmissions, and a downlink TTI length for downlink transmissions, in which the uplink TTI length and the downlink TTI length may be different. The downlink TTI length may be a shortened TTI (sTTI) length, and the uplink TTI length may be longer than the downlink sTTI length. Various parameters for transmissions may be determined based on one or more of the uplink TTI length or the downlink TTI length, such as one or more of a feedback process transmission timing, a timing advance (TA) value, a transport block size (TBS), a number of spatial layers, a number of component carriers (CCs), or a channel quality information (CQI) reporting type may be determined based on one or more of the uplink TTI length or the downlink TTI length.

公开(公告)号：US20180139770A1

公开(公告)日：2018-05-17

申请号：US15807005

申请日：2017-11-08

Applicant: QUALCOMM Incorporated

Inventor： Ozcan Ozturk ,  Wanshi Chen ,  Shimman Arvind Patel ,  Jing Sun ,  Seyedkianoush Hosseini

IPC: H04W72/12 ,  H04W28/02

Abstract: Described techniques provide for prioritization of radio bearers and logical channels based on mixed TTI durations or numerologies of the bearers or logical channels. Two or more bearers may be identified for uplink data transmission that carry data to be transmitted using different TTI durations or numerologies. Each bearer may be prioritized based on the associated bearer type, TTI duration or numerology, or combinations thereof. Additionally, one or more logical channels may be associated with one or more bearers, and also prioritized based on the associated bearer type, TTI duration or numerology, or combinations thereof. A buffer status report (BSR) may be generated that has one or more portions associated with the different priorities of bearers or logical channels. Buffer information associated with the higher priority bearers or logical channels may be provided ahead of buffer information associated with lower priority bearers or logical channels.

公开(公告)号：US20170332401A1

公开(公告)日：2017-11-16

申请号：US15592855

申请日：2017-05-11

Applicant: QUALCOMM Incorporated

Inventor： Jing Sun ,  Wanshi Chen ,  Peter Gaal ,  Shimman Arvind Patel ,  Aleksandar Damnjanovic ,  Hao Xu ,  Juan Montojo

IPC: H04W72/12 ,  H04W72/04 ,  H04L27/26

CPC classification number: H04W72/1289 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/0087 ,  H04L27/2602 ,  H04L27/2607 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communication are described. Different transmission time interval (TTI) durations may be supported and configured to coexist with one another. A set of TTIs with a relatively short duration may overlap in time with longer duration TTIs. Boundaries of TTIs with a relatively short duration may be configured to align with boundaries of relatively longer duration TTIs. For example, TTIs that are a Long Term Evolution (LTE) subframe, an LTE slot, and a duration of two LTE symbol periods may be supported. Two-symbol period TTIs may align with or be embedded within slot-duration TTIs, which, in turn, may align with or be embedded within a subframe. In some examples, one or more symbol periods of a subframe may be designated as a gap between two-symbol TTIs within the subframe, or such symbols may be merged with a two-symbol TTI within the subframe.

公开(公告)号：US20170288819A1

公开(公告)日：2017-10-05

申请号：US15444875

申请日：2017-02-28

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Shimman Arvind Patel ,  Yongbin Wei ,  Aleksandar Damnjanovic

IPC: H04L1/18 ,  H04W72/12 ,  H04W74/02 ,  H04W72/04

CPC classification number: H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L5/0044 ,  H04L5/0055 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0466 ,  H04W72/1273 ,  H04W72/1284 ,  H04W74/02

Abstract: Systems, methods, and apparatuses are described for wireless communication, including for hybrid automatic repeat request (HARQ) feedback in a system that supports communications using transmission time intervals (TTIs) of different durations. A base station may identify a user equipment's (UE) capability to provide HARQ feedback for transmissions that use TTIs of a shorter duration relative to other TTIs supported in the system. The base station may select a HARQ timing mode based on the capability of the UE and may indicate the selected HARQ timing mode to the UE. The base station may then transmit one or more data transmissions to the UE using the reduced TTIs. The UE may respond with HARQ feedback based on the HARQ timing mode. The HARQ timing mode may be based on different response times based on the location of the data transmission within a TTI or relative to data transmission in other TTIs.

公开(公告)号：US20170265181A1

公开(公告)日：2017-09-14

申请号：US15362350

申请日：2016-11-28

Applicant: QUALCOMM Incorporated

Inventor： Shimman Arvind Patel ,  Wanshi Chen

IPC: H04W72/04 ,  H04W74/08

CPC classification number: H04W72/0413 ,  H04W72/0446 ,  H04W72/1284 ,  H04W74/004 ,  H04W74/08

Abstract: A method for wireless communication at a user equipment (UE) includes transmitting a scheduling request (SR) transmission in a radio frequency spectrum band on at least one resource of a contention-based physical uplink shared channel (PUSCH), and monitoring the radio frequency spectrum band for a response to the SR transmission. A method for wireless communication at a network access device includes receiving, from a UE, a SR transmission in a radio frequency spectrum band on at least one resource of a contention-based PUSCH; determining an availability of uplink resources allocable to the UE; selecting, based at least in part on the determined availability of uplink resources, the response to the SR transmission; and transmitting in the radio frequency spectrum band, to the UE, the selected response to the SR transmission. The response to the SR transmission includes an uplink grant or an acknowledgement of the SR transmission.

公开(公告)号：US20170223670A1

公开(公告)日：2017-08-03

申请号：US15356966

申请日：2016-11-21

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Shimman Arvind Patel ,  Yongbin Wei ,  Aleksandar Damnjanovic ,  Hao Xu

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04L5/0048 ,  H04L5/0053 ,  H04W24/08 ,  H04W72/00 ,  H04W88/02

Abstract: Control information may be transmitted for different TTI lengths. Different control information for the different TTIs may be transmitted using control channel resources that are established for communication of control information, such as a physical downlink control channel (PDCCH), for example. Control information for a first TTI may be located in a first set of resources, and control information for a second TTI may be located in a second set of resources. The first set of resources may be located within a first search space that may be searched by a user equipment (UE) to identify the first control information. The second set of resources may be located within a second search space that may be searched by the UE to identify the second control information.

公开(公告)号：US20170208575A1

公开(公告)日：2017-07-20

申请号：US15402051

申请日：2017-01-09

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Yisheng Xue ,  Peter Gaal ,  Seyedkianoush Hosseini ,  Shimman Arvind Patel

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/0406 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0055 ,  H04L5/0083 ,  H04L5/0092 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/1278 ,  H04W72/1289

Abstract: Systems, methods, and apparatuses for wireless communication are described. Multiple latency modes may be concurrently supported. Available resources and parameters for communication according to one latency mode may be determined with respect to resources used for another latency mode. One of the latency modes may employ transmission time intervals (TTIs) that are shorter in duration relative to the other latency mode. A transport block size or a modulation and coding scheme for shorter duration TTIs may be determined by reference to resources of longer duration TTIs. Multiple shorter duration TTIs may be scheduled in a single grant or may be individually scheduled; or a combination of multi- and individual-TTI scheduling may be employed. Scheduling may be UE-specific and may be dynamically indicated. The scheduling interpretation may depend on the location of a shorter duration TTI with respect to resources of a longer duration TTI.

公开(公告)号：US09585103B2

公开(公告)日：2017-02-28

申请号：US14603839

申请日：2015-01-23

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Peter Gaal ,  Aleksandar Damnjanovic ,  Shimman Arvind Patel ,  Kiran Kumar Somasundaram ,  Tingfang Ji ,  Hao Xu ,  Tao Luo

IPC: H04W52/18 ,  H04W52/16 ,  H04W16/14 ,  H04W52/14 ,  H04W52/34 ,  H04W52/42 ,  H04W52/50

CPC classification number: H04W52/18 ,  H04W16/14 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/346 ,  H04W52/42 ,  H04W52/50

Abstract: Certain aspects of the present disclosure provide techniques for controlling transmission power in shared radio frequency spectrum (SRFS). According to techniques, devices (e.g., BSs, UEs, etc.) transmitting in SRFS band may win contention to the SRFS band for at least a portion of a radio frame period. For example, the radio frame period may include a plurality of subframe periods. The devices may also transmit a first signal at a first transmit power during a first subframe period of the radio frame period and transmit a second signal at a second transmit power during a second subframe period of the radio frame period. For example, the first transmit power and second transmit power may be controlled based, at least in part, on a power level determined for the radio frame period.

Abstract translation: 本公开的某些方面提供了用于控制共享射频（SRFS）中的发射功率的技术。 根据技术，在SRFS频带中发射的设备（例如，BS，UE等）可以在无线电帧周期的至少一部分中赢得对SRFS频带的争用。 例如，无线帧周期可以包括多个子帧周期。 在无线电帧周期的第一子帧周期期间，设备还可以以第一发射功率发送第一信号，并且在无线电帧周期的第二子帧周期期间以第二发射功率发送第二信号。 例如，可以至少部分地基于为无线电帧周期确定的功率电平来控制第一发射功率和第二发射功率。