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Method for providing feedback to UE about sir offset and transmission rank by using a new channel (e-roch)

A technology of transmission rank and dedicated channel, applied in the direction of link quality-based transmission modification, adjustment of transmission mode, wireless communication, etc., can solve problems such as performance degradation of wireless communication network

Active Publication Date: 2018-10-16
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, grants can sometimes generate non-optimal transmissions for UEs in MIMO operation, resulting in degraded performance of the wireless communication network

Method used

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  • Method for providing feedback to UE about sir offset and transmission rank by using a new channel (e-roch)
  • Method for providing feedback to UE about sir offset and transmission rank by using a new channel (e-roch)
  • Method for providing feedback to UE about sir offset and transmission rank by using a new channel (e-roch)

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 is a block diagram of a wireless communication network 10 (eg, a 3GPP WCDMA / HSPA network) including a base station 12 (eg, a NodeB) and one or more user equipments (UEs) 14 . Those skilled in the art will understand that "user equipment" is a non-limiting term that refers to any wireless terminal, device or node, such as a personal digital assistant (PDA), laptop computer, cell phone, machine type communication device, sensor , relay devices, mobile tablets or even small base stations that communicate within the corresponding cell.

[0022] The base station 12 may also be referred to as, for example, a NodeB, a radio base station, a base transceiver station, an access point base station, a base station router or a device capable of communicating with user equipment within the cell served by the base station 12, depending on, for example, the radio access technology and terminology used. any other network element.

[0023] The base station 12 provides feedback...

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Abstract

Embodiments herein relate to a method in a base station (12) for providing feedback to a user equipment (14) for transmission of a primary stream and a secondary stream of a secondary stream of a user equipment (14) in uplink multiple-input multiple-output mode Methods. The base station (12) sends the user equipment (14) the preferred transmission rank and offset for the secondary stream in the channel, where the offset will be used by the user equipment (14) in deciding the transport block size of the secondary stream, and the preferred transmission rank will be given by Used by the user equipment (14) when deciding the transmission rank.

Description

technical field [0001] Embodiments herein relate to a base station, user equipment and methods therein. In particular, embodiments herein relate to configuring transmissions for primary and secondary ones of secondary streams. Background technique [0002] In a typical wireless communication network, wireless terminals (also referred to as mobile stations and / or user equipment (UE)) communicate via a radio access network (RAN) to one or more core networks. The geographical area covered by the RAN is divided into cell areas, where each cell area is served by a base station, such as a radio base station (RBS), also referred to in some networks as a "NodeB" (in Universal Mobile Telecommunications System (UMTS) in) or "eNodeB" (in Long Term Evolution (LTE)). A cell is a geographical area where radio coverage is provided by a radio base station at a base station site or at an antenna site (if the antenna is not collocated with the radio base station). Each cell is identified b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/14H04W72/12
CPCH04B7/0404H04B7/0413H04B7/063H04L1/0006H04L1/0025H04L1/0072H04L1/1822H04W72/23H04W28/04H04W8/22
Inventor 埃里克·拉森布·约兰松皮特·冯维里克恰
Owner TELEFON AB LM ERICSSON (PUBL)