IP Library Granted Patent US 12707501
Granted Patent B2
US 12707501 · App. 18/022,186 · Granted Aug 11, 2026

UE, networks nodes, and methods performed thereby, for handling RACH-reports

Inventors: Pradeepa Ramachandra (Linköping, SE); Angelo Centonza (Granada, ES); Marco Belleschi (Solna, SE); Ali Parichehrehteroujeni (Linköping, SE)
Assignee: Telefonaktiebolaget LM Ericsson (publ)
H04W74/0833H04W48/16H04W74/0836
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12707501
App. No.
18/022,186
Granted
Aug 11, 2026
Kind
B2
Abstract

A method for providing one or more indications related to a random access procedure by a first node (101) to a second cell (122, 124), when served by a first cell (121). The second cell (122, 124) is a secondary cell. The first node (111) registers (1401) a first identifier of the second cell (122, 124) and one or more first indications indicating at least one of: i) a second identifier of the first cell (121), ii) a third identifier of a primary secondary cell (123), iii) a fourth identifier of a first network node (111) owning the first cell (121), iv) a fifth identifier of a second network node (112) owning the primary secondary cell (123), and v) an indicator of a cell group the second cell (122, 124) belongs to. The first node (111) also provides (1402) one or more second indications based on the registered identifier and indications.

Claims (70)

1 . A method, performed by a first node, for providing one or more indications related to a random access procedure by the first node to a second cell, when served by a first cell, the second cell being a secondary cell, the first node operating in a wireless communications network, the method comprising:

registering, in a register, a first identifier of the second cell and one or more first indications, the one or more first indications indicating at least one of:

i. a second identifier of the first cell,

ii. a third identifier of a primary secondary cell,

iii. a fourth identifier of a first network node owning the first cell,

iv. a fifth identifier of a second network node owning the primary secondary cell, and

v. an indicator of a cell group the second cell belongs to, and

providing, to a second node, one or more second indications based on the registered first identifier and the one or more first indications.

2 . The method according to claim 1 , wherein at least one of:

a. the random access procedure is one of: a two step procedure and a four step procedure, and

b. the registering is performed upon performing the random access procedure to the second cell.

3 . The method according to claim 1 , wherein the one or more first indications indicate Primary Cell Identity (PCell ID) and its associated Tracking Area Code.

4 . The method according to claim 1 , wherein the one or more first indications comprise the indicator of the cell group, and the indicator indicates a cell group type the second cell belongs to is a Master Cell Group.

5 . The method according to claim 4 , wherein the one or more second indications indicate the second identifier.

6 . The method according to claim 1 , wherein the one or more first indications comprise the indicator of the cell group, and the indicator indicates a cell group type the second cell belongs to is a Secondary Cell Group.

7 . The method according to claim 6 , wherein the one or more second indications indicate at least one of the second identifier and the third identifier.

8 . The method according to claim 1 , wherein the one or more first indications indicate at least one of:

a. at least one of a PCell ID, and a Primary Secondary Cell Identity (PSCell ID) and their associated Tracking area codes,

b. at least one of a global cell identity of the first cell, wherein the first cell is a primary cell, and a global cell identity of the primary secondary cell, and

c. at least one of the identity of the first cell, wherein the first cell is the primary cell, and the global cell identity of the primary secondary cell, and their associated Tracking area codes.

9 . The method according to claim 1 , wherein the one or more first indications indicate the Global Node Identity of the first cell or the primary secondary cell, the cell global Identity and tracking area code.

10 . The method according to claim 1 , wherein the first node registers at least one of:

a. the first identifier, the second identifier and the indicator, and

b. the first identifier, and another identifier of the second network node owning the second cell.

11 . A method, performed by a second node, for handling one or more indications related to a random access procedure by a first node to a second cell, when served by a first cell, the second cell being a secondary cell, the second node and the first node operating in a wireless communications network, the method comprising:

receiving, from the first node, one or more second indications, the one or more second indications indicating a first identifier of the second cell and one or more first indications registered by the first node, the one or more first indications indicating at least one of:

i. a second identifier of the first cell,

ii. a third identifier of a primary secondary cell,

iii. a fourth identifier of a first network node owning the first cell,

iv. a fifth identifier of a second network node owning the primary secondary cell, and

v. an indicator of a cell group the second cell belongs to, and

sending to a third node, one or more third indications based on the received one or more second indications.

12 . The method according to claim 11 , wherein the one or more first indications indicate Primary Cell Identity (PCell ID) and its associated Tracking Area Code.

13 . The method according to claim 11 , wherein the one or more first indications comprise the indicator of the cell group, and the indicator indicates a cell group type the second cell belongs to is a Master Cell Group.

14 . The method according to claim 11 , wherein the one or more first indications comprise the indicator of the cell group, and the indicator indicates a cell group type the second cell belongs to is a Secondary Cell Group.

15 . The method according to claim 14 , wherein the one or more second indications indicate at least one of the second identifier and the third identifier.

16 . The method according to claim 11 , wherein the one or more first indications indicate at least one of:

a. at least one of a PCell ID, and a Primary Secondary Cell Identity (PSCell ID) and their associated Tracking area codes,

b. at least one of a global cell identity of the first cell, wherein the first cell is a primary cell, and a global cell identity of the primary secondary cell, and

c. at least one of the identity of the first cell, wherein the first cell is the primary cell, and the global cell identity of the primary secondary cell, and their associated Tracking area codes.

17 . A method, performed by a third node, for handling one or more indications related to a random access procedure by a first node to a second cell, when served by a first cell, the second cell being a secondary cell, wherein the third node serves or has served the first node in a configuration supporting simultaneous connectivity to more than one cell, the third node and the first node operating in a wireless communications network, the method comprising:

receiving, from a second node, one or more third indications, the one or more third indications indicating a first identifier of the second cell and one or more first indications registered by the first node, the one or more first indications indicating at least one of:

i. a second identifier of the first cell,

ii. a third identifier of a primary secondary cell,

iii. a fourth identifier of a first network node owning the first cell,

iv. a fifth identifier of a second network node owning the primary secondary cell, and

v. an indicator of a cell group the second cell belongs to, and

adapting a configuration of one or more cells controlled by the third node based on the received one or more third indications.

18 . The method according to claim 17 , wherein the one or more first indications indicate Primary Cell Identity (PCell ID) and its associated Tracking Area Code.

19 . The method according to claim 17 , wherein the one or more first indications comprise the indicator of the cell group, and the indicator indicates a cell group type the second cell belongs to is a Master Cell Group.

20 . The method according to claim 19 , wherein the one or more first indications indicate the second identifier.

21 . The method according to claim 17 , wherein the one or more first indications indicate at least one of:

a. at least one of a PCell ID and Primary Secondary Cell Identity (PSCell ID) and their associated Tracking area codes,

b. at least one of a global cell identity of the first cell, wherein the first cell is a primary cell, and a global cell identity of the primary secondary cell, and

c. at least one of the identity of the first cell, wherein the first cell is the primary cell, and the global cell identity of the primary secondary cell, and their associated Tracking area codes.

22 . The method according to claim 17 , wherein the one or more first indications indicate the Global Node Identity, ID, of the first cell or the primary secondary cell, the cell global Identity and tracking area code.

23 . The method according to claim 17 , wherein the one or more first indications indicate at least one of:

a. the first identifier, the second identifier and the indicator, and

b. the first identifier, and another identifier of the second network node owning the second cell.

24 . A first node, for providing one or more indications related to a random access procedure by the first node to a second cell, when served by a first cell, the second cell being configured to be a secondary cell, the first node being configured to operate in a wireless communications network, the first node being further configured to:

register, in a register, a first identifier of the second cell and one or more first indications, the one or more first indications being configured to indicate at least one of:

i. a second identifier of the first cell,

ii. a third identifier of a primary secondary cell,

iii. a fourth identifier of a first network node configured to own the first cell,

iv. a fifth identifier of a second network node configured to own the primary secondary cell, and

v. an indicator of a cell group the second cell is configured to belong to, and

provide, to a second node, one or more second indications configured to be based on the first identifier and the one or more first indications configured to be registered.

25 . The first node according to claim 24 , wherein at least one of:

a. the random access procedure is configured to be one of: a two step procedure and a four step procedure, and

b. the registering is configured to be performed upon performing the random access procedure to the second cell.