US 11,057,795 B2 · Transmission rate control method and apparatus

Abstract

Example transmission rate control methods and apparatus are described. One example method includes obtaining a user equipment aggregate maximum bit rate (UE-AMBR) by a master base station. The master base station determines, based on the UE-AMBR, a first UE-AMBR used for the master base station and a second UE-AMBR used for a secondary base station. The master base station sends the second UE-AMBR to the secondary base station, and sends instruction information used to instruct the secondary base station to control data splitting for the master base station to the secondary base station. In this application, a transmission rate between each base station and a UE is controlled by allocating a UE-AMBR.

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Drawings

Claims13

Dependent claims

A transmission rate control method, comprising:

receiving, by a secondary base station, a second user equipment (UE) aggregate maximum bit rate (UE-AMBR) and a bearer type of the secondary base station from a master base station, wherein the second UE-AMBR is determined according to a UE-AMBR received from a core-network;
and
controlling, by the secondary base station, a terminal transmission rate based on the second UE-AMBR and the bearer type of the secondary base station;
and wherein:
when the bearer type of the secondary base station comprises only a split bearer anchored on the secondary base station, the controlling, by the secondary base station, a terminal transmission rate based on the second UE-AMBR and the bearer type of the secondary base station comprises controlling, over an uplink by the secondary base station, an uplink transmission rate that is of the split bearer anchored on the secondary base station and that is between the secondary base station and the UE based on the second UE-AMBR;
and
when the bearer type of the secondary base station comprises a secondary cell group bearer and a split bearer anchored on the secondary base station, the controlling, by the secondary base station, a terminal transmission rate based on the second UE-AMBR and the bearer type of the secondary base station comprises controlling, over an uplink by the secondary base station, uplink transmission rates that are of the secondary cell group bearer and the split bearer anchored on the secondary base station and that are between the secondary base station and the UE based on the second UE-AMBR.

4 more elements

A transmission rate control method, comprising:

obtaining, by a master base station, a user equipment (UE) aggregate maximum bit rate (UE-AMBR);
determining, by the master base station, a bearer type of a secondary base station;
determining, based on the UE-AMBR, a second UE-AMBR used for the secondary base station, wherein the second UE-AMBR is used by the secondary base station to control a terminal transmission rate based on the bearer type of the secondary base station;
and
sending, by the master base station, the second UE-AMBR and the bearer type of the secondary base station to the secondary base station, wherein:
when the bearer type of the secondary base station comprises only a split bearer anchored on the secondary base station, the second UE-AMBR is used by the secondary base station to control a terminal transmission rate based on the bearer type of the secondary base station comprises over an uplink, the second UE-AMBR is used by the secondary base station to control an uplink transmission rate that is of the split bearer anchored on the secondary base station and that is between the secondary base station and the UE;
and
when the bearer type of the secondary base station comprises only a split bearer anchored on the secondary base station, the second UE-AMBR is used by the secondary base station to control a terminal transmission rate based on the bearer type of the secondary base station comprises over an uplink, the second UE-AMBR is used by the secondary base station to control an uplink transmission rate that is of the split bearer anchored on the secondary base station and that is between the secondary base station and the UE.

5 more elements

A communications apparatus, comprising:

at least one processor;
and
a memory, wherein the memory is configured to store instructions executable by the at least one processor, wherein the instructions, when executed by the at least one processor, instruct a secondary base station to perform the following operations:
receiving a second user equipment (UE) aggregate maximum bit rate (UE-AMBR) and a bearer type of the secondary base station from a master base station, wherein the second UE-AMBR is determined according to a UE-AMBR received from a core-network;
and
controlling a terminal transmission rate based on the second UE-AMBR and the bearer type of the secondary base station, and wherein:
when the bearer type of the secondary base station comprises only a split bearer anchored on the secondary base station, the controlling, by the secondary base station, a terminal transmission rate based on the second UE-AMBR and the bearer type of the secondary base station comprises controlling, over an uplink, an uplink transmission rate that is of the split bearer anchored on the secondary base station and that is between the secondary base station and the UE based on the second UE-AMBR;
and
when the bearer type of the secondary base station comprises a secondary cell group bearer and a split bearer anchored on the secondary base station, the controlling, by the secondary base station, a terminal transmission rate based on the second UE-AMBR and the bearer type of the secondary base station comprises controlling, over an uplink, uplink transmission rates that are of the secondary cell group bearer and the split bearer anchored on the secondary base station and that are between the secondary base station and the UE based on the second UE-AMBR.

6 more elements

Dependencies are inferred from the claim text.

Description23,521 words

Summary6,633 words

#This application relates to the field of communications technologies, and in particular, to a transmission rate control method and an apparatus.

#In a dual connectivity (DC) system, one user equipment (UE) is usually connected to two base stations, to increase a bandwidth and a throughput.

#In the DC system, because there are two base stations serving the UE on a network side, a user equipment aggregate maximum bit rate (UE-AMBR) is divided into two parts that are separately used to restrict a sum of rates of all non-guaranteed bit rate (non-GBR) services, of the UE, transmitted on each base station, to be specific, a sum of rates of all non-GBR services cannot exceed a value of the UE-AMBR.

Brief description of the drawings14 figures

#FIG. 1 is an architectural diagram of a DC system;

#FIG. 2a is a schematic diagram of a dedicated radio bearer (DRB) according to an embodiment of this application;

#FIG. 2b is another schematic diagram of a DRB according to an embodiment of this application;

Detailed description16,641 words

#In the following, some terms in this application are described, to help a person skilled in the art have a better understanding.

#(1). UE may also be referred to as a mobile terminal, mobile user equipment, or the like, and may communicate with one or more core networks through a radio access network (for example, RAN, radio access network). The user equipment may be a mobile terminal such as a mobile phone (also referred to as a “cellular” phone) or a computer with a mobile terminal. For example, the user equipment may be a portable mobile apparatus, a pocket-sized mobile apparatus, a handheld mobile apparatus, a computer built-in mobile apparatus, or an in-vehicle mobile apparatus that exchanges voice and/or data with the radio access network.

#(2). A base station may be a base transceiver station (BTS) in GSM (Global System for Mobile Communications) or CDMA (Code Division Multiple Access), may be a NodeB in WCDMA (Wideband Code Division Multiple Access), may be an evolved NodeB (eNodeB, eNB, or e-NodeB) in LTE (Long-Term Evolution), may be a transmission/reception point (TRP for short), a gNB, a TP (transmission point), a centralized unit (CU for short), or a distributed unit (DU for short) in NR, or may be a node in a 5th generation (5G) network, or the like. This is not limited in this application.

Facts

Application

16/693,897Filed 25 Nov 2019 · continuation

Priority

CN 201710459105.716 Jun 2017

Published

US 2020/0092753 A119 Mar 2020

Granted

6 Jul 2021

Term ends

14 Jun 2038

Estimated · how

20 years from earliest known nonprovisional domestic filing plus recorded patent term adjustment. Maintenance-fee lapses, terminal disclaimers and statutory extensions have not been checked. The continuity chain may be incomplete; this is not an enforceability determination.

Classification10 codes

H04W 28/0867
Load balancing or load distribution: among entities in the downlink
H04W 28/12
Flow control between communication endpoints: using signalling between network elements
H04L 5/0035
Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation: resource allocation in a cooperative…
H04W 28/0257
Per individual bearer or channel: the individual bearer or channel having a maximum bit rate or a bit rate guarantee

Timeline

16 Jun 2017Priority claimedCN 201710459105.7
25 Nov 2019Application filedUS 16/693,897
19 Mar 2020PublishedUS 2020/0092753 A1
17 Jul 2020Assigned to Huawei Technologies Co., Ltd.assignment of assignor's interest
6 Jul 2021GrantedUS 11,057,795 B2
12 Oct 2026TodayWithin its term
14 Jun 2038Term endsEstimated

Transmission rate control method and apparatus

Life of this patent

Transmission rate control method and apparatus

Life of this patent

Life of this patent

Abstract

Drawings

Drawings

Claims13

Description23,521 words

Drawings

Classification10 codes

Life of this patent

Description23,521 words