US 10,951,372 B2Granted

DMRS port configuration information obtaining method, DMRS port configuration information delivery method, and apparatus

AssigneeHuawei Technologies Co., Ltd.

InventorsHongzhe Shi, Yong Liu, Xiaoyan Bi

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Abstract

The present disclosure discloses a demodulation reference signal (DMRS) port configuration information obtaining method, a DMRS port configuration information delivery method, and an apparatus, and relates to the field of communications technologies, to reduce signaling overheads. The DMRS port configuration information obtaining method may include: receiving, by user equipment (UE), indication information sent by a base station, where the indication information includes overview information of DMRS ports of all UEs scheduled by the base station; and obtaining, by the UE, DMRS port configuration information of all the UEs according to a preset rule and the indication information.

Claims12

Dependent claims

A demodulation reference signal (DMRS) port configuration information delivery method, comprising:

sending, by a base station, indication information to user equipment (UE) for instructing the UE to obtain, according to a preset rule and the indication information, DMRS port configuration information of all UEs scheduled by the base station, wherein the indication information comprises overview information of DMRS ports of all the UEs and a scrambling code identifier allocated to the UE, wherein the preset rule includes:
a rule indicating that a quantity of DMRS ports corresponding to a previously allocated scrambling code by the base station is greater than or equal to a quantity of DMRS ports corresponding to a subsequently allocated scrambling code by the base station, or
a rule indicating that a quantity of DMRS ports corresponding to a subsequently allocated scrambling code by the base station is greater than or equal to a quantity of DMRS ports corresponding to a previously allocated scrambling code by the base station.

User equipment (UE), comprising:

a transceiver configured to receive indication information sent by a base station, wherein the indication information comprises overview information of DMRS ports of all UEs scheduled by the base station;
and
a processor configured to obtain DMRS port configuration information of all the UEs according to a preset rule and the indication information, wherein the indication information comprises overview information of DMRS ports of all the UEs and a scrambling code identifier allocated to the UE, wherein the preset rule includes:
a rule indicating that a quantity of DMRS ports corresponding to a previously allocated scrambling code by the base station is greater than or equal to a quantity of DMRS ports corresponding to a subsequently allocated scrambling code by the base station, or
a rule indicating that a quantity of DMRS ports corresponding to a subsequently allocated scrambling code by the base station is greater than or equal to a quantity of DMRS ports corresponding to a previously allocated scrambling code by the base station.

2 more elements

A base station, comprising:

a transceiver configured to send indication information to user equipment (UE) for instructing the UE to obtain, according to a preset rule and the indication information, DMRS port configuration information of all UEs scheduled by the base station, wherein the indication information comprises overview information of DMRS ports of all the UEs and a scrambling code identifier allocated to the UE, wherein the preset rule includes:
a rule indicating that a quantity of DMRS ports corresponding to a previously allocated scrambling code by the base station is greater than or equal to a quantity of DMRS ports corresponding to a subsequently allocated scrambling code by the base station, or
a rule indicating that a quantity of DMRS ports corresponding to a subsequently allocated scrambling code by the base station is greater than or equal to a quantity of DMRS ports corresponding to a previously allocated scrambling code by the base station.

Dependencies are inferred from the claim text.

Facts

Application: 16/370,657Filed 29 Mar 2019 · continuation
Priority: CN 201610875327.230 Sep 2016
Published: US 2019/0229871 A125 Jul 2019
Granted: 16 Mar 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H04L 5/0048
Arrangements for allocating sub-channels of the transmission path: allocation of pilot signals, i.e. of signals known to the receiver
H04L 5/00
Arrangements affording multiple use of the transmission path
H04L 5/0051
Allocation of pilot signals, i.e. of signals known to the receiver: of dedicated pilots, i.e. pilots destined for a single user or terminal
H04L 5/0091
Arrangements affording multiple use of the transmission path: signalling for the administration of the divided path, e.g. signalling of…